To:
All Plan Holders & Bidding Contractors
From:
Integrity Construction Services, LLC. (Construction Manager)
Date:
June 26, 2015
Re:
Kirtland – Health Sciences Education and Training Center
Addendum No. 2
This addendum is being issued for the purpose of modifying and/or clarifying the original Bidding
Documents and shall take precedence over them.
All work included herein shall be in accordance with the general requirements of the original
bidding documents, except as specifically noted herein.
This addendum is being sent to all known plan holders, suppliers, plan rooms, and governmental
agencies having Bidding Documents.
BID SCOPE CLARIFICATIONS:
Item #1
Bid Package #1 – Sitework
This bid package is to include all required topsoil within the proposed
irrigation/hydroseed limits, with the exception of required topsoil for landscape
beds (i.e. areas with plantings).
Item #2
Bid Package #1 - Sitework
This bid package is to provide and install (1) 2,500 gallon grease interceptor tank
per plans and specifications.
Item #3
Bid Package #1 - Sitework
This bid package to provide and install 2-1/2” domestic water service line from
proposed well location into mechanical room as clarified in this addendum.
Item #4
Bid Package #3 – Landscaping, Pond and Irrigation
This bid package is to include 45 mil EPDM pond liner per plans and
specifications.
1 of 2
Item #5
Bid Package #24 – Painting and Staining
For decorative metal railings (guardrail detail on Sheet A15), aluminum square
tubing has been changed to carbon steel, prime painted by Bid Package #12 Structural and Miscellaneous Steel. Bid Package #24 – Painting and Staining is
to provide finish painting in the field.
CIVIL ITEMS:
See Addendum No. 2 dated June 26, 2015 from Rowe Professional Services (1
page)
Attachments:
§ Civil sheet 9 of 20
ARCHITECTURAL ITEMS:
See Addendum No. 2 dated June 26, 2015 from Seidell Architects (4 pages)
Attachments:
§
§
§
§
§
§
§
§
§
§
Sheet A32 (1 page)
Sheet S34 (1 page)
Sheet FS2 (1 page)
Sheet S0.1 (1 page)
Sheet S0.4 (1 page)
Sheet S1.3A (1 page)
Sheet S2.4 (1 page)
Sheet S5.6 (1 page)
Walk-in Cooler Condensing Specifications (1 page)
Walk-in Freezer Condensing Unit Specifications (1 page)
MEP ITEMS:
See Addendum No.2 dated June 26, 2015 from Nealis Engineering (13 pages)
Attachments:
§ Mechanical Specification Section 15188 “HVAC Pumps” (3 pages)
§ Mechanical Specification Section 15720 “Air Handling Units” (3 pages)
§ Mechanical Specification Section 15542 “Dedicated Outdoor Air Systems
and Make-up Air” (8 pages)
§ Mechanical Specification Section 15739 “Critical Cooling Units” (2 pages)
§ Mechanical Specification Section 15260 “Thermal Insulation” (9 pages)
§ Generator Gas Piping Detail (Drawing Sheet P2) (1 page)
§ Revised Lighting Control Panel (LCP-1) Schedule (Drawing Sheet E8) (1
page)
2 of 2
June 26, 2015
Project:
Kirtland Community College
Health Sciences Education and Training Center
4800 W. Four Mile Road
Grayling, MI 49738
Re: Addendum #2
The following is a compliation of items to be addressed in Addendum #2. These reflect changes and
clarifications from the Construction Set issued 6/8/2015 and previous Addendums.
1. Refer to Specification SECTION 05730 DECORATIVE METAL RAILINGS to allow the use of
the following acceptable substitutions:
a. Carbon steel railing system, factory primed and field painted
2. Refer to Specification SECTION 06402 INTERIOR ARCHITECTURAL WOODWORK AND
CABINETRY; Add the following item for Metal Coat Racks shown on Detail 16/A47. Coat
racks to be Bobrick Hat & Coat Rack Model 9944 – 4 hooks. 36” long. 22 ga. Stainless steel
with exposed surfaces in architectural satin finish.
3. Refer to Specification SECTION 07531 EPDM SINGLE-PLY MEMBRANE ROOFING; Add
1.2,G Metal soffit shown on Detail 3/A13 to be Metal Sales Manufacturing Corporation, Lanced
Soffit, Flat Face profile (no ribs), 12” Panel coverage, 26 ga., PVDF (Kynar 500) Finish,
Concealed fasteners.
4. Refer to Specification SECTION 07531 EDPM SINGLE PLY MEMBRANE ROOFING
adjusted due to specified EDPM membrane not available with reinforcing and also white in
color. The following options will be accepted:
a. Membrane Roofing to be fully adhered and reinforced TPO roofing, white in color.
b. Or Membrane Roofing to be fully adhered and reinforced PVC roofing, white in color.
5. Refer to Specification SECTION 08330 OVERHEAD COILING DOORS Section 1.2,A; add the
following acceptable manufacturer:
a. Cookson
6. Refer to Specification SECTION 08333 SECURITY GRILLES Section 1.2,A; add the following
acceptable manufacturer:
a. Cookson
b. Raynor
114 N. Court Avenue P.O. Box 2189
Gaylord, MI 49734
989.731.0372
115 S. Arcade Street P.O. Box 414
Gladwin, MI 48624
989.701.7096
7. Refer to Specification SECTION 08410 ALUMINUM ENTRANCES AND STOREFRONTS
Section 1.2,A; add the following acceptable manufacturer:
a. Tubelite
8. Refer to Specification SECTION 08710 DOOR HARDWARE; Door 102 with hardware set #4
shall be equipped with the following hardware:
a. ADA approved gliding track by aluminum door manufacturer
b. Lever handle with hook bolt emergency hardware by aluminum door manufacturer
c. 1 ea. Mortise Lock
MS1850-050 X 4550 MS LEVER 628
d. 1 ea. Mortise Cylinder
I5307 X-I15401
26D
9. Refer to Specification SECTION 08710 DOOR HARDWARE; Door 201 is an aluminum door
and aluminum frame. Frame 11 has been updated on Sheet A32.
10. Refer to Specification SECTION 08710 DOOR HARDWARE; Door 300 will be added to the
door schedule: 3’-6” wide x 7’-0” tall steel insulated service door with exterior welded and
painted hollow metal frame. Door hardware set #38. Sheet A32 is updated. The door shall be
equipped with the following hardware:
a. 3 ea Butt Hinges
35STHB 4545 NRP
26D
b. 1 ea Storeroom Lock
MR 115 BJSJ-SFL7+PDQ6
32D
c. 1 ea Closer
7101 BC
AL
k0050 10 x 1 1/2LDW B4S
32D
d. 1 ea kick plate
e. 1 ea Sweep
354C
AL
f. 1 ea Threshold
S205C
AL
g. 1 ea door seal
854C
AL
h. 1 ea drip cap
199A
AL
11. Refer to Specification SECTION 08800 GLAZING:
a. Regarding the entry window system with Vanceva Glass. Bid to include up to 4 colors to
be selected by architect from standard colors with up to 4 layers per color.
b. Exterior windows: Low-E coating shall be provided on all exterior window units.
12. Refer to Specification SECTION 09255 GYPSUM BOARD ASSEMBLIES, Section 1.2,D,6;
shall be deleted. Refer to Specification SECTION 07210 BUILDING INSULATION for sound
insulation information.
13. Refer to Specification SECTION 09310 CERAMIC TILE FLOORING- Tile items:
a. Floors and ceilings in Locker Room Showers to be StonePeak Pangaea Series 2” x 2”
(Tile #4). Color: Moon Shadow. Tile #1 on walls to remain as specified. Sheet A34 has
been updated.
b. Locker Room Shower thresholds to be marble thresholds. (not cultured as listed in
Section 1.2,4,2)
c. All floor tile locations to include waterproofing and crack isolation product under the
floor tiles, as manufactured by Hydro-Ban or approved equal.
d. All Tile #1 in restrooms to have additional schluter metal edging at the top of the tile
wainscoting pattern.
Addendum #2
Page 2 of 4
14. Refer to Specification SECTION 09512 ACOUSTICAL TILE CEILINGS Section 1.2, A; add
the following acceptable manufacturer, with the exception that the acoustical and aesthetic
properties match the specifications:
a. USG
15. Refer to Specification SECTION 09660 RESILIENT FLOORS AND BASE- Wall base #2
changed to Johnsonite Masquerade Classic 5-1/4” White Wood Beech MW-MB6-Z. Sheet A34
has been updated.
16. Refer to Specification SECTION 09900 PAINTING AND STAINING; Kitchen walls to be full
height epoxy paint (not FRP Panels). Sheet A43 has been corrected. Follow the Room Finish
Schedule on Sheet A34.
17. Refer to Specification SECTION 09900 PAINTING AND STAINING, Section 1.3, I, 6:
a. Exterior Exposed Structural Steel shall be:
i. Factory applied finish- Imron Paint by DuPont- selected from standard colors
ii. Touch-up weld joints in field to match
18. Refer to Specification SECTION 10650 OPERABLE PARTITIONS: clarification of product to
be:
a. Paired panel system
b. With top and bottom mechanical seals
c. Panels to have 16 gauge minimum steel welded frame.
d. Header will be pre-drilled by others per manufacturer’s specifications.
19. Refer to Specification SECTION 10650 OPERABLE PARTITIONS Section 1.2, A; add the
following acceptable manufacturer:
a. Moderco
20. Refer to Specification SECTION 11450 FOOD SERVICE EQUIPMENT:
a. See attached updated sheet FS2 for updated items.
b. See attached specifications for Walk-In Cooler and Freezer condensing units. Rooftop
curbs, chases, and flashing to be included in bid.
c. Update to Item #6.2 MAKE-UP AIR UNIT
i. Quantity: One (1), Manufacturer: Captive-Aire, Model: A2-D.500-G15
ii. Direct fired gas make up air furnace, 3400 cfm capacity, 208 volt 3 phase with
down discharge, pitched roof curb and inlet hood with v-bank filters and
motorized back draft damper for rooftop application. Ductwork by HVAC
Contractor
d. Update to Item #10 TILT SKILLET
i. Quantity: One (1), Manufacturer: Vulcan, Model: VG30
ii. Braising Pan, Gas, 30-gallon capacity, 36" wide open base, manual tilt, 9" deep
stainless steel pan with gallon markings, pouring lip & removable strainer, spring
assist cover with drip edge, pan holder, thermostatic control, includes L faucet
bracket, electric ignition, 12" stainless steel legs with adjustable flanged feet,
90,000 BTU
1. One (1) Natural Gas
2. One (1) 120v/60/1-ph, 9.0 amps, standard
3. One (1) Motor driven pan lift
4. One (1) Pouring Lip Strainer, for braising pan
Addendum #2
Page 3 of 4
5. One (1) Draw-off Strainer, for braising pan
6. One (1) Model DBLTS 12NZL DOUBLE Pantry Deck-Mount Faucet,
12” swivel spout
7. One (1) Model FCTBRKT BP Enclosed box faucet bracket
8. One (1) Dormont Model 1675KIT2S48PS gas hose
e. Added Item #17.1 DISHWASHER EXHAUST FAN
i. Quantity: One (1), Manufacturer: Captive-Aire, Model: DU50HFA
ii. One (1) Model DU50HFA 800 cfm capacity fan, 208 volt 1 phase with pre-wired
disconnect switch, grease trough, ECM wiring package, hinging brackets and roof
curb. Ductwork by HVAC Contractor.
f. Update to Item #31.1 EXHAUST FAN
i. Quantity: One (1), Manufacturer: Captive-Aire, Model: DU85HFA
ii. One (1) 1700 cfm capacity fan, 208 volt 1 phase with pre-wired disconnect
switch, grease trough, hinging brackets and roof curb. Ductwork by HVAC
Contractor
g. Update to Item #31.2 MAKE-UP AIR UNIT
i. Quantity: One (1), Manufacturer: Captive-Aire, Model: A1-D.250-G10
ii. One (1) Direct fired gas make up air furnace, 1360 cfm capacity, 208 volt 1 phase
with down discharge, pitched roof curb and inlet hood with v-bank filters and
motorized back draft damper for rooftop application. Ductwork By HVAC
Contractor.
21. Refer to Specification SECTION 12355 LABORATORY CASEWORK AND EQUIPMENT
Section 1.2,G,1; add the following acceptable manufacturer:
a. Farnell Contracting, Inc. (FCI)
22. Structural Clarifications, see the following attached sheets.
a. S0.1:
i. Refer to updated information on the special joist diagrams.
ii. Note 1. under Metal Decking should indicate deck is to be painted; not galvanized.
b. S0.4: This is a new sheet to clarify the “net” uplift pressures; versus the gross uplift pressures
shown on sheet S0.2.
c. S1.3A: Detail 43 is a new detail at the exterior walls on the north and south sides of the
Community Room Lobby.
d. S2.4: The metal deck in detail 19 should be indicated as painted; not galvanized.
e. S5.6: Details 42 and 43 are new details.
Attachments: Sheet A32, Sheet A34, FS2, S0.1, S0.4, S1.3A, S2.4, S5.6, Walk-in Cooler Condensing
Unit Specifications, Walk-in Freezer Condensing Unit Specifications.
END OF ADDENDUM #2
Addendum #2
Page 4 of 4
NATIONAL REFRIGERATION AND
AIR CONDITIONING CANADA CORP.
159 ROY BLVD, PO BOX 2020
BRANTFORD, ON
CANADA N3T 5Y6
NATIONAL REFRIGERATION will furnish equipment in accordance with this drawing and specifications, and
subject to its published warranty. Approval of this drawing signifies that the equipment is acceptable under the
provision of the job specifications. Any change made hereon by any person whomsoever subject to acceptance
by NATIONAL REFRIGERATION at its home office.
Order Item No: 2
BEHA008E6-HS2B
EH-LINE HERMETIC
CONDENSING UNITS-AIR
DATE : 28 May 2015
PURCHASER :
PROJECT :
SUBMITTED BY : BILL STOMPF
Dimensions shown are for standard unit less
options.
DIMENSIONS
DIMENSION A
16 7/8 in
DIMENSION B
24 7/8 in
DIMENSION C
30 3/8 in
DIMENSION D
4 in
DIMENSION E
DIMENSION F
DIMENSION G
0 in
DIMENSION H
CONNECTIONS
LIQUID
SUCTION
DRAIN
WATER
DISCHARGE
PAN LOOP
HOT GAS SIDE PORT
HOT GAS INLET
HOT GAS OUTLET
OTHER
SHIPPING WEIGHT
REFRIGERANT CHARGE
RECEIVER CAPACITY
3/8 in
5/8 in
149 lb
5 lb
APPROVALS
NOTES:
PAGE
4
OF
8
NATIONAL REFRIGERATION AND
AIR CONDITIONING CANADA CORP.
159 ROY BLVD, PO BOX 2020
BRANTFORD, ON
CANADA N3T 5Y6
NATIONAL REFRIGERATION will furnish equipment in accordance with this drawing and specifications, and
subject to its published warranty. Approval of this drawing signifies that the equipment is acceptable under the
provision of the job specifications. Any change made hereon by any person whomsoever subject to acceptance
by NATIONAL REFRIGERATION at its home office.
Order Item No: 5
BEZA020L6-HS2B
EZ-LINE SCROLL
CONDENSING UNITS-AIR
DATE : 28 May 2015
PURCHASER :
PROJECT :
SUBMITTED BY : BILL STOMPF
Dimensions shown are for standard unit less
options.
DIMENSIONS
DIMENSION A
19 7/8 in
DIMENSION B
36 3/8 in
DIMENSION C
30 3/8 in
DIMENSION D
4 in
DIMENSION E
DIMENSION F
DIMENSION G
0 in
DIMENSION H
CONNECTIONS
LIQUID
SUCTION
DRAIN
WATER
DISCHARGE
PAN LOOP
HOT GAS SIDE PORT
HOT GAS INLET
HOT GAS OUTLET
OTHER
SHIPPING WEIGHT
REFRIGERANT CHARGE
RECEIVER CAPACITY
3/8 in
7/8 in
315 lb
11 lb
APPROVALS
NOTES:
PAGE
8
OF
8
MEP Addendum #2
Date:
June 26, 2015
To:
Todd Seidell Architect
P.O. Box 2189
Gaylord, MI 49734
Attn:
Todd Seidell and/or Brittany Stripp
Project:
Kirtland Community College – Health Sciences Education and Training Center
4 Mile Road, Grayling, MI
Notes By:
Bo Reinhardt, Mark Wilkes, and Aaron Wosek
Distribution:
Nealis Engineering Project #15008
SCOPE OF WORK
The following items are changes, additions, deletions, clarifications, and/or errors, and omissions in plans
and specifications, and shall be considered by each Bidder in making and submitting his proposal. All of
these items shall be considered a part of the Contract Documents.
MECHANICAL (BID PACK #31 HVAC)
M1
Reference Mechanical Specifications Sections:
The following mechanical specification sections have been updated and are attached as part of this
Addendum. The updated spec sections shall take the place of the original spec section provided as part
of the bidding documents.
A. 15188 HVAC Pumps:
B. 15720 Air Handling Units
C. 15260 Thermal Insulation
1. Note all refrigerant piping must be insulated with 3/4” Armaflex insulation. Must be equal to the
Armaflex brand.
2. Note all underground ductwork shall be insulated per Section 15260.
3. All supply air duct above lay-in ceilings shall be insulated per Section 15260.
4. Return air ductwork above lay-in ceilings does not require insulation.
Kirtland Community College – Health Sciences Education and Training Center
MEP Addendum #2
June 26, 2015
M2
Reference Mechanical Specifications:
The following mechanical specification sections have been added to the Mechanical Specification scope,
and are attached as part of this Addendum.
A. 15542 Dedicated Outdoor Air Systems and Make-Up Air Units
B. 15739 Critical Cooling Units
M3
Reference Mechanical Specifications Section 15926 Digital Control Equipment:
A. The Temperature Control Contractor shall provide pricing for the Tridium Vykon with Niagara AX
Platform Version 3.8, since the Niagara 4 platform is not available for pricing. Upgrade to the
Niagara 4 platform is readily available with AS version 3.8, which will be coordinated at the time
of submittal review. HTML 5 scripts may be included by the TCC in lieu of the current JAVA
available.
B. The TCC shall wire the Liebert critical cooling unit and associated condensing unit (CCU-1 &
CCCU-1) controls and integrate the CCU into the BCS, via the CCU BacNet interface board
(provided as part of the Liebert package).
C. The kitchen ventilation equipment including the (2) hoods, (4) fans, and (2) make-up air units
shall all be wired by the Temperature Control Contractor. Note that all control equipment, control
relays, hood controls, VFD, etc., shall be provided as part of the Food Service Equipment
Package, and CaptiveAire. The kitchen equipment shall not be integrated into the BCS.
D. The VFDs for air handlers, AHU-139, AHU-140, kitchen Make-up air unit, MUA-1, dedicated
outdoor air system, DOAS-1, and MUA-229 shall all be provided by the equipment manufacturer.
E. All software, firmware, and hardware licenses shall be held by Kirtland College. No proprietary
entities (JCI, Siemens, Honeywell, Trane, etc.) shall provide proprietary equipment for this
project.
F. Johnson Controls Inc., Corporate Office Branch is approved to procure and install the Tridium
Vykon BCS. No proprietary JCI equipment is approved.
M4
Reference Mechanical Schedule Sheets M9 and M10:
The following are clarifications and additions to the original schedules:
A. See Commercial Kitchen Exhaust Fan Schedule. (See FSE Package for further info):
1. KEF-3 shall be 208/60/1-phase.
2. KEF-4 model number shall be CaptiveAire DU50HFA, 208/60/1-phase.
B. See Critical Cooling Unit Schedule:
1. The critical cooling unit condensing unit, CCCU-1, Liebert model number was listed
incorrectly. The correct model number is MCD38W3YH7, and is 208/60/1-phase. Contact
Alex Collins at Hedricks Associates 616-454-1218 for pricing and complete package
information.
C. See Commercial Kitchen Make-up Air Unit Schedule
1. MUA-2 shall be provided 208/60/1-phase. The total make-up air flow rate is 1700 CFM.
D. Reference Mechanical Boiler Schedules:
1. The boiler supplier shall include one Lochinvar (1) BacNet interface board for each boiler
(total of 5) included in the bid. Approved Voluntary Alternate Boiler Manufacturers shall also
include a single BacNet board for each boiler provided.
Page 2
Kirtland Community College – Health Sciences Education and Training Center
MEP Addendum #2
June 26, 2015
E. Reference the Direct-Fired Make-Up Air Unit Schedule:
1. The total supply airflow rate for MUA-229 shall be 3500 CFM. See updated specifications as
described above under Item M2-C.
F. Reference VRF Schedules
1. The VRF supplier shall include integral condensate pumps with each evaporator.
M5
Reference Mechanical Drawings Sheet M2 Storage Room 138:
1. The VRF heat pumps ZN-139A and ZN-139B are available in right-hand horizontal
configuration only, therefore the heat pumps will need to be mirrored and installed against
Storage 138 inner wall. Updated construction drawings will be available for construction.
M6
Reference Mechanical Sheet M2 Type 1 Exhaust Ductwork:
A. The Mechanical Contractor shall install the Type 1 kitchen hoods (total of 3), kitchen exhaust fans
(total of 4), and provide and install all Type 1 and Type 2 ductwork, and associated materials.
B. Wrap all Type 1 ductwork that serves Hood-1, Hood-2, and Hood-3 with zero-clearance 3-M Fire
Barrier Duct Wrap 615+ or equal. Include 3M adhesives and install per manufacturer installation
instructions.
M7
Reference Mechanical Sheet M1:
A. Reference VRF evaporator ZN-169:
1. The ZN-169 evaporator shall be an EVAP-18, 1.5 Ton, 580 CFM (medium speed). The zone
damper package shall be unchanged.
PLUMBING (BID PACKAGE #32)
P1
Reference Gas Service and Plumbing Drawings Sheet P2:
A. The natural gas meters and service shall be provided by Integrity Construction.
B. The main building gas meter shall be installed where shown on Sheet P2. The total load is
6,141,916 Btu/Hr.
C. An additional gas meter is being requested to be installed outdoors, to the south of Mechanical
Room 126 next to the electrical generators. The gas meter (if approved by DTE Energy) shall be
installed on a pole (exact location to be determined), and shall be high-pressure, 1/2 psi, sized for
a total of 11,932,000 Btu/Hr.
1. Generators #1 & #2, Generator #3 (Alternate #E-3), and future Generator #4 shall be served
by the new meter.
2. The Plumbing Contractor shall pipe gas to each generator. Install gas piping, valves, and gas
regulators as shown on supplemental sketch Generator Gas Piping Detail attached as part of
this document.
3. Break-out piping and associated valve and gas regulator to Generator #3 and list as line item
for Alternate # E-2.
P2
Reference Addendum #1
Install a 2” ball valve in lieu of the auto-fill valve described in Addendum #1 on the 2” irrigation piping
branch that supplies the fire protection tank. The Fire Protection Contractor shall install a float valve in
the tank that will automatically maintain the tank water level.
Page 3
Kirtland Community College – Health Sciences Education and Training Center
MEP Addendum #2
June 26, 2015
ELECTRICAL (BID PACKAGE #33)
E1
Reference Electrical Lighting Floor Plan - Drawing Sheet E1L:
A. VESTIBULE 100 –
1. Connect all light fixtures in this area to branch circuit LS1-3 as a night light circuit.
B. LOBBY 101 and CONCOURSE 116 –
1. Connect all the non-emergency light fixtures THRU LCP-1 (R19) 3A-22.
2. Connect all emergency life-safety light fixtures to THRU LCP-1 (R4) LS1-3.
3. Connect all exit signs to branch circuit LS1-3.
4. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
5. Change four (4) Type-F4 light fixtures currently shown in the Elevator Lobby Area to now
be four (4) Type-F light fixtures.
C. OPEN OFFICE 102 –
1. Add an Emergency Transfer Device (ETD-1) and connect two (2) Type-F8 light fixtures to
branch circuit LS1-3 to as required.
2. Add two (2) Type-L light fixtures at the Reception Desk 103. Coordinate mounting with
Architect/Engineer prior to installation.
3. Add a Type-EX exit sign fixture above the door leading to Lobby 101 and connect to
branch circuit LS1-3.
4. Connect all the non-emergency light fixtures THRU LCP-1 (R21) 1A-5.
5. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
6. Eliminate the occupancy sensor switchpack (SP) currently shown in Reception 103.
D. STAIR 115 –
1. Connect all light fixtures in this area THRU LCP-1, (R6) LS1-13.
2. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
E. ELEVATOR PIT 172 –
1. Connect lighting to branch circuit 3A-16.
F. ELEVATOR EQUIPMENT ROOM 171 –
1. Connect lighting to branch circuit 3A-20.
G. CORRIDOR 181 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1 (R10) LS1-5.
2. Connect all exit signs to branch circuit LS1-5.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
H. CORRIDOR 156 & ALCOVE 162 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1 (R12) LS1-5.
2. Connect all exit signs to branch circuit LS1-5.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
I.
SKILLS LAB 176 –
1. Add an Emergency Transfer Device (ETD-2) and connect one (1) Type-F1 light fixture
and one (1) Type A2 light fixture to branch circuit LS1-5 as required.
2. Connect all exit signs to branch circuit LS1-5.
Page 4
Kirtland Community College – Health Sciences Education and Training Center
MEP Addendum #2
J.
June 26, 2015
PROGRAM EXPANSION 189 –
1. Add an Emergency Transfer Device (ETD-1) and connect two (2) Type-A light fixtures to
branch circuit LS1-5 as required.
2. Connect all exit signs to branch circuit LS1-5.
K. BOOKSTORE STOCK ROOM –
1. Connect lighting to branch circuit 3A-1.
L. BOOKSTORE AREA 119 –
1. Add an Emergency Transfer Device (ETD-2) and connect to the lighting currently shown
as DMR#2 Zone-9 to branch circuit LS1-11 as required.
2. Designate the light fixture over the check-out counter as light fixture Type-F4.
M. EXTERIOR BLDG. MNTD. –
1. Connect all Type-AA light fixtures and the two (2) Type-CC light fixtures mounted above
Vestibule 100, THRU LCP-1, (R2) LS1-1.
2. Connect the remaining five (5) Type-CC light fixtures mounted in the main entrance
canopy THRU LCP-1, (R17) 3B-14.
E2
Reference Electrical Lighting Floor Plan - Drawing Sheet E2L:
A. CONCOURSE 116 and STUDY AREAS 117 & 118 –
1. Change the light fixture identification tag for the one (1) Type-F4E light fixture and the
four (4) Type-F4 light fixtures as currently shown, to now all be Type-F light fixtures.
2. Connect all the non-emergency light fixtures THRU LCP-1 (R19) 3A-22.
3. Connect all emergency life-safety light fixtures to THRU LCP-1 (R4) LS1-3.
4. Connect all exit signs to branch circuit LS1-3.
5. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
6. Add a Type-OS10 occupancy sensor by the west column adjacent to Café Area 125, and
orientate in the east facing direction.
7. Mount the Type-G1 wall sconce currently shown on the adjacent Operating Room 150
wall, under the stairs leading up to the second floor.
B. COMMUNITY ROOM LOBBY 136 –
1. Change the light fixture identification tags for the six Type-F4 light fixtures as currently
shown, to now be Type-F.
2. Connect all the non-emergency light fixtures THRU LCP-1 (R23) 3C-1.
3. Connect all emergency life-safety light fixtures to THRU LCP-1 (R16) LS1-7.
4. Connect all exit signs to branch circuit LS1-7.
5. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
C. I.T. CLOSET 137 – Connect lighting to branch circuit 3C-2.
D. COMMUNITY ROOM “A” 139 –
1. Add an Emergency Transfer Device (ETD-2) and connect four (4) Type-CH1 light fixtures
currently shown on DMR#1 Zone-4 to branch circuit LS1-17 as required.
E. COMMUNITY ROOM “B” 140 –
1. Add an Emergency Transfer Device (ETD-2) and connect four (4) Type-CH1 light fixtures
currently shown on DMR#1 Zone-8 to branch circuit LS1-19 as required.
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MEP Addendum #2
June 26, 2015
F. FITNESS 130 –
1. Add an Emergency Transfer Device (ETD-2) and connect one (1) Type-A light fixture to
branch circuit LS1-7 as required.
G. WOMEN’S LOCKER 131 –
1. Add an Emergency Transfer Device (ETD-1) and connect one (1) Type-C1 light fixture to
branch circuit LS1-7 as required.
H. MEN’S LOCKER 132 –
1. Add an Emergency Transfer Device (ETD-1) and connect one (1) Type-C1 light fixture to
branch circuit LS1-7 as required.
I.
CORRIDOR 129 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1 (R14) LS1-7.
2. Connect all exit signs to branch circuit LS1-7.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
J.
CORRIDOR 149 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1 (R18) LS1-7.
2. Connect all exit signs to branch circuit LS1-7.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
K. CARDIAC SONOGRAPHY 143 –
1. Change the Type-A1 light fixture currently shown to now be a Type-A2 light fixture.
2. Eliminate the Type-OS8 occupancy sensor currently shown.
L. PRIVACY ROOM 147 –
1. Relocate Dimming-Vacancy Sensor Switch currently shown, to now be mounted adjacent
to the door.
M. PROGRAM EXPANSION 189 –
1. Add a second Emergency Transfer Device (ETD-1) to this space (see Addendum Item
No. E1(J) above) and connect two (2) more Type-A light fixtures to branch circuit LS1-5
as required.
2. Connect all exit signs to branch circuit LS1-5.
N. CLASSROOM 153 –
1. Add an Emergency Transfer Device (ETD-2) and connect one (1) Type-A light fixture to
branch circuit LS1-7 as required.
O. PREP SCRUB ROOM 152 –
1. Add a Type-EX exit sign above the door leading to Classroom 153 and connect to branch
circuit LS1-7.
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June 26, 2015
P. COMMERCIAL KITCHEN 124 –
1. Change the designated “MS1” master control station currently shown, to now be “MS3”.
2. Add an Emergency Transfer Device (ETD-1) and connect two (2) Type-A light fixtures to
branch circuit LS1-11 as required.
3. Add two (2) Type-OS1 occupancy sensors and a switchpack (SP) to control the west and
north (dishwashing) area lighting.
4. Add an Emergency Transfer Device (ETD-1) and connect two (2) Type-A light fixtures
and one (1) Type-A2 light fixture to branch circuit LS1-11 as required.
5. Add two (2) Type-OS1 occupancy sensors and a switchpack (SP) to control the middle
(Hood-1 & 2) and east (Hood-3) area lighting.
Q. CAFÉ AREA 125–
1. Add an Emergency Transfer Device (ETD-2) and connect to the lighting currently shown
as DMR#2 Zone-1 to branch circuit LS1-11 as required.
R. STAIR “B” 135 –
1. Connect all light fixtures in this area THRU LCP-1, (R8) LS1-13.
2. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
S. MECHANICAL AND ELECTRICAL 126 –
1. Connect lighting to branch circuit 3A-1.
T. SHIPPING AND RECEIVING 121 –
1. Connect lighting to branch circuit 3A-1.
2. Connect all exit signs to branch circuit LS1-1.
U. EXTERIOR BLDG. MNTD. –
1. Connect all Type-AA light fixtures THRU LCP-1, (R2) LS1-1.
E3
Reference Electrical Lighting Floor Plan - Drawing Sheet E3L:
A. STAIR “A” 115 –
1. Eliminate the one (1) Type-K4 light fixture currently shown on the south wall. The light fixture
over the stairwell landing, that is to be installed, is currently shown on Drawing Sheet E1L.
2. Connect all light fixtures in this area THRU LCP-1, (R6) LS1-13.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
B. ADMINISTRATION LOBBY 201 –
1. Change the two (2) Type-L4 light fixtures currently shown to now be two (2) Type-L light
fixtures.
2. Change one (1) Type-A4 light fixture currently shown to now be a Type-A2 light fixture.
3. Add an Emergency Transfer Device (ETD-2) and connect to one (1) Type-A light fixture and
two (2) Type-A2 light fixtures as required.
4. Connect all non-emergency light fixtures in this area THRU LCP-1, (R25) 2D-1.
5. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
C. UPPER CONCOURSE 228 & 237 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1, (R20) LS1-15.
2. Connect all exit signs to branch circuit LS1-15.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
4. Connect the eight Type-P3 pendant light fixtures currently shown mounted above Lobby 101,
THRU LCP-1, (R19) 3A-22.
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MEP Addendum #2
E4
June 26, 2015
Reference Electrical Lighting Floor Plan - Drawing Sheet E4L:
A. STAIR “B” 135 –
1. Eliminate the one (1) Type-K4 light fixture currently shown on the south wall. The light fixture
over the stairwell landing, that is to be installed, is currently shown on Drawing Sheet E3L.
2. Connect all light fixtures in this area THRU LCP-1, (R8) LS1-13.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
B. UPPER CONCOURSE 220 & 228 –
1. Connect all emergency life-safety light fixtures to THRU LCP-1, (R20) LS1-15.
2. Connect all exit signs to branch circuit LS1-15.
3. Connect all occupancy sensors in this area as an INPUT TO LCP-1.
E5
Reference Electrical Power Floor Plan - Drawing Sheet E2P:
A. SERVER ROOM 127 –
1. Change the branch circuit connections to the two (2) rack mounted UPS to now be two (2)
NEMA L5-30P receptacles and connect to branch circuits 3A-32 and 3A-34 (See
Addendum #2 Item No. E13 below for more details).
B. SERVER ROOM 127 –
1. Connect the two (2) quad. 120V receptacles currently shown to branch circuit 3A-26 (See
Addendum #2 Item No. E13 below for more details).
C. SERVER ROOM 127 –
1. Connect the Critical Cooling Unit Evaporator (CCU-1) currently shown above, to new branch
circuit 3A-36,38 (See Addendum #2 Item No. E13 below for more details). Unit will be
provided with an integral disconnect (coordinate with the M.C.).
D. STORAGE 138 –
1. Connect branch circuit 3C-31,33,35 to AHU-139 through a disconnect and VFD as required.
E. STORAGE 140 –
1. Connect branch circuit 3C-38,40,42 to AHU-140 through a disconnect and VFD as required.
E6
Reference Electrical Systems Floor Plan - Drawing Sheet E2S:
A. I.T. CLOSET 137 –
1. Change the quantity of STP point-to-point shielded cables required at each of the two
(2) low voltage STP (point-to-point) outlets from eight (8) as currently shown, to now be
nine (9) cables required.
E7
Reference Electrical Systems Floor Plan - Drawing Sheet E3S:
A. TESTING 235 –
1. CLARIFICATION: All low voltage UTP Network Outlets currently shown in Testing 235, shall
be fed through flexible conduit to modular (RJ45) connector receptacles mounted within
surface mounted raceway on the adjacent wall.
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MEP Addendum #2
E8
June 26, 2015
Reference Electrical Symbol Legend - Drawing Sheet E6:
Include the following changes/revisions to the Electrical Symbol Legend and include under Division 17
and Bid Package #34.
A. ELAPSED TIME INDICATOR CLOCK –
1. Based on DUKANE #24D40A. Rated for 24VAC operation and mounted within 4-gang
recessed backbox as required per manufacturer’s installation requirements (VIF).
B. REMOTE ON/OFF/RESET CONTROL UNIT FOR ELAPSED TIME INDICATOR CLOCK –
1. Based on DUKANE #24CC10. To operate independently of master PoE clock system
and connected to designated digital elapsed time indicator clock.
E9
Reference Electrical Symbol Legend - Drawing Sheet E6:
A. IP CAMERAS, SPEAKERS, WIRELESS ACCESS POINTS, TELEVISION LOCATIONS, and
PROJECTOR LOCATIONS –
1. All network cabling and connections to the outlets and/or equipment above shall be
installed by the Division 17000 contractor and included with Bid Package #34. Revise
the references in the Symbol Legend that refer the work to be done by the Electrical
Contractor (E.C.).
B. LOW VOLTAGE UTP NETWORK OUTLET –
1. CLARIFICATION: Revise the notes to designate MDF-1 in Main Server Room #127, and
IDF-1 in I.T. Closet #157 as shown per the floor plans and described in the specifications.
E10
Reference Interior Light Fixture Schedule - Drawing Sheet E7:
A. TYPE-L –
1. Under the description, change to now be a 4’ light fixture.
2. Under the Catalog #, change to now be (1) #EL-120V-48-30K-D.
E11
Reference Lighting Control Panel (LCP-1) Diagram - Drawing Sheet E8:
A. Reference the attached Revised Lighting Control Panel (LCP-1) Diagram. Revise floor plan
references to reflect the attached revised diagram.
B. Change the LCP-1 model number to now be based on #LK32-120/277-S0-L3-M0-T2-HVB0.
E12
Reference Electrical Riser Diagram - Drawing Sheet E9:
A. #EDP-1 FEEDER WIRING AND CONDUIT –
1. See Alternate Add summaries in Addendum #2 Item No. E20 below for further base
bid vs. alternate add. details.
B. FIRE PUMP CONTROLLER (SERVICE DISCONNECT) –
1. Change the 1#3/0 (CU) G.E.C. currently shown to the metallic water pipe(s), to now be
1#6 (CU) G.E.C. to the metallic water pipe(s).
C. MAIN DISTRIBUTION PANEL #MDP-1 –
1. Add a 60A/3P branch circuit breaker and connect to a new TVSS#MDP with 5#6 (CU),
1” EMT conduit. Added TVSS#MDP shall be based on Liebert #570YA12ARCG1S.
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MEP Addendum #2
June 26, 2015
D. DISTRIBUTION PANEL #DP-1 –
1. Add a 60A/3P branch circuit breaker and connect to a new TVSS#1 with 5#6 (CU),
1” EMT conduit. Added TVSS#1 shall be based on Liebert #560YA12ARCG1S.
E. DISTRIBUTION PANEL #DP-2 –
1. Add a 60A/3P branch circuit breaker and connect to a new TVSS#2 with 5#6 (CU),
1” EMT conduit. Added TVSS#2 shall be based on Liebert #560YA12ARCG1S.
F. DISTRIBUTION PANEL #DP-3 –
1. Add a 60A/3P branch circuit breaker and connect to a new TVSS#3 with 5#6 (CU),
1” EMT conduit. Added TVSS#3 shall be based on Liebert #560YA12ARCG1S.
E13
Reference Electrical Panel Schedules - Drawing Sheet E10:
A. PANEL #3A –
1. Add a 20A/1P branch circuit breaker in circuit no. 22.
2. Add a 20A/1P branch circuit breaker in circuit no. 26.
3. Eliminate two (2) 30A/2P branch circuit breakers currently shown in circuit nos. 32
thru 38.
4. Add two (2) 30A/1P branch circuit breakers in circuit nos. 32 and 34.
5. Add a 15A/2P branch circuit breaker in circuit no. 36,38.
6. Change the 25A/2P branch circuit breaker currently shown in circuit no. 40,42, to
now be a 35A/2P branch circuit breaker.
7. Revise the branch circuit descriptions as follows:
a. #22: LIGHTS – LOBBY & CONCOURSE
b. #26: “RECEPTS. – IT SERVER RM.”
c. #32: “IT SERVER RACK #MDF – IT SERVER”
d. #34: “IT SERVER RACK #MDF – IT SERVER”
e. #36,38: “CRITICIAL COOLING (CCU-1) – IT SERVER”
f. #40,42: “CRITICAL COOLING (CCCU-1) – IT OFFICE”
8. Include circuit breaker locks on circuit nos. 14, 16, 18, 26-42.
B. PANEL #LS1 –
a. Add “Emerg. Lights – 2nd Flr. & Stairwells” to spare circuit no. 13.
b. Add “Emerg. Lights – Comm. Rm. A” to spare circuit no. 17.
c. Add “Emerg. Lights – Comm. Rm. B” to spare circuit no. 19.
E14
Reference Site Electrical Plan - Drawing Sheet SE1:
A. FUTURE SITE LTG. NOTES –
1. Reduce the two (2) approx. 66’-0” underground conduit sleeves currently shown on the
north side of the parking lot from the two (2) northern Type-SL5 site lighting fixture bases,
to now only be a stubbed a minimum 2’-0” for future site lighting.
B. U/G CONDUIT SLEEVES –
1. Add two (2) 4” underground PVC schedule-40 conduit sleeves under the roadway (just
south of the west branching service drive) for underground communications utility
services.
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MEP Addendum #2
June 26, 2015
C. TYPE-BB FIXTURES MNTD WITHIN PERGOLA –
1. Change the “BID ALTERNATE #E4 ONLY” note for the five (5) Type-BB light fixtures
currently shown mounted in the pergola to now be “BID ALTERNATE #E3 ONLY”, as
noted in Specification Section #16010-4.03, in Supplementary Instructions to Bidders
Part-11, and in Bid Proposal Form.
D. SITE IP EXTERIOR CAMERAS –
1. Change the four (4) IP Cameras currently shown in the parking lot to all be IP Exterior
Cameras as provided by the Owner and installed by the Division 17 Contractor in Bid
Package #34.
2. Add a 3/4” PVC Sch.40 underground conduit sleeve from the north two (2) site cameras
to Mechanical/Electrical Room 165.
3. Add a 3/4” PVC Sch.40 underground conduit sleeve from the south two (2) site cameras
to Server Room 127.
E. EMERGENCY PHONE TOWER (Reference Addendum #1 Item E10-(C)(4)) –
1. Change the mounting location for the emergency phone tower to now be located adjacent
to the sidewalk. Coordinate location in the field with the Architect/Engineer.
E15
Reference Type “SLx” Light Fixture and Concrete Base Detil - Drawing Sheet SE2:
A. Change the designated 18’-0” pole height to now be 15’-0” to match the Exterior Light
Fixture Schedule.
B. Add Type-SL4 to the 15’-0” pole detail.
E16
Reference Specification Section 16000 – Electrical General Provisions:
Revise the following specifications sections accordingly:
A. Specification Section 16000-1.05(B)(1) –
1. Submit electronic shop drawings on all equipment and materials indicated in the
specifications or on drawings. Reference Supplementary Instructions to Bidders Section
00101 Part-28 for more details.
B. Specification Section 16000-1.05(B)(3) –
1. Submittals shall be in electronic PDF format with the name of the Project, Architect,
Engineer, and the submitting Contractor indicated on the cover sheet.
E17
Reference Specification Section 16050 – Basic Materials and Methods:
Revise/add to the following specification sections:
A. Add the following line item as Specification Section 16050-2.02 –
(H) Provide a dedicated neutral conductor for all single pole branch
circuits as required. Multi-wire branch circuits with shared neutrals
are NOT allowed, unless otherwise noted.
B. Eliminate the word “existing” currently shown in the first line of Specification
Section #16050-2.02(G)(1).
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MEP Addendum #2
E18
June 26, 2015
Reference Specification Section 16700 – Fire Alarm Signal and Mass Notification System:
Add the following line items to Specification Section 16700-3.05:
A. (E) All system wiring shall be furnished and installed by the contractor.
B. (F) All wiring shall be installed in electrical metallic tubing (EMT), or conduit, and must be
installed and kept separate from all other building wiring.
C. (G) All system components shall be securely supported independent of the wiring. Runs
of conduit and wiring shall be straight, neatly arranged, properly supported, and installed
parallel and perpendicular to walls and partitions.
E19
Reference Specification Section 17200 – Fiber Optic
A. CLARIFICATION –
1. The use of armored fiber is an acceptable alternative to standard fiber and
innerduct. Reference Spec. Section 17200-3.01(A)(1).
E20
Reference Construction Documents – Drawings and Specifications:
CLARIFICATION: Include the following for the Electrical Base Bid and Add. Alternates
(**Added below to summary originally distributed with Addendum #1):
A. BASE BID –
1. GENERATOR #1
2. GENERATOR #2
3. PARALLELING GENERATOR CONTROLLER (PGC-1) AND ACCESSORIES
4. ATS#LS1 AND CONTROL WIRING
5. ATS#3 AND CONTROL WIRING
6. JUNCTION BOX FOR FUTURE ATS#1
7. JUNCTION BOX FOR FUTURE ATS#2
8. JUNCTION BOX FOR FUTURE ATS#4
9. TWO (2) PARALLEL 4” CONDUIT SLEEVES FROM EDP-1 TO FUTURE
GENERATOR #3
10. TWO (2) PARALLEL 4” CONDUIT SLEEVES FROM EDP-1 TO FUTURE
GENERATOR #4
11. ONE (1) 1” CONDUIT SLEEVE FROM PANEL #3B TO FUTURE
GENERATOR #3
12. ONE (1) 1” CONDUIT SLEEVE FROM PANEL #3B TO FUTURE
GENERATOR #4
13. ONE (1) 3/4” CONDUIT SLEEVE FROM PARALLEL GENSET CONTROLLER
#PGC-1 TO FUTURE GENERATOR #3
14. ONE (1) 3/4” CONDUIT SLEEVE FROM PARALLEL GENSET CONTROLLER
#PGC-1 TO FUTURE GENERATOR #4
15. **TWO (2) PARALLEL 4” CONDUIT SLEEVES FROM EDP-1 TO J-BOX
ATS#1.
16. **TWO (2) PARALLEL 4” CONDUIT SLEEVES FROM EDP-1 TO J-BOX
ATS#2.
B. ADD. ALTERNATE #E1 –
1. ATS #1 AND CONTROL WIRING
2. **FEEDER WIRING FROM EDP-1 TO ATS#1
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MEP Addendum #2
June 26, 2015
C. ADD. ALTERNATE #E2 –
1. GENERATOR #3 AND CONTROL WIRING
2. ATS#2 AND CONTROL WIRING
3. **FEEDER WIRING FROM EDP-1 TO ATS#2
4. **FEEDER WIRING FROM GENERATOR #3 TO EDP-1
ATTACHED
1. Mechanical Specification Section 15188 “HVAC Pumps”
2. Mechanical Specifications Section 15720 “Air Handling Units”
3. Mechanical Specifications Section15542 “Dedicated Outdoor Air Systems and Make-Up Air Units”
4. Mechanical Specifications Section 15739 “Critical Cooling Units”
5. Mechanical Specifications Section 15260 “Thermal Insulation”
6. Generator Gas Piping Detail
7. Revised Lighting Control Panel (LCP-1) Schedule
End of MEP Addendum #2
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SECTION 15188
HVAC PUMPS
PART 1 GENERAL
1.01 SECTION INCLUDES
A.
System lubricated circulators.
B.
In-line circulators.
C.
Vertical in-line pumps.
D.
Base mounted pumps.
1.02 RELATED REQUIREMENTS
A.
Section 15182 - Hydronic Piping.
B. Section 15183 - Hydronic Specialties.
1.03 REFERENCE STANDARDS
A.
UL 778 - Standard for Motor-Operated Water Pumps; Underwriters Laboratories Inc.; Current
Edition, Including All Revisions.
1.04 SUBMITTALS
A.
Product Data: Provide certified pump curves showing performance characteristics with pump
and system operating point plotted. Include NPSH curve when applicable. Include electrical
characteristics and connection requirements.
B.
Operation and Maintenance Data: Include installation instructions, assembly views, lubrication
instructions, and replacement parts list.
C. Maintenance Materials: Furnish the following for Owner's use in maintenance of project.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A.
Armstrong Pumps Inc: www.armstrongpumps.com.
B.
ITT Bell & Gossett: www.bellgossett.com.
C.
Taco Inc..
D.
Grundfos Company.
2.02 HVAC PUMPS - GENERAL
A.
Provide pumps that operate at specified system fluid temperatures without vapor binding and
cavitation, are non-overloading in individual operation, and operate within 25 percent of
midpoint of published maximum efficiency curve.
B.
Products Requiring Electrical Connection: Listed and classified by UL or testing agency
acceptable to authority having jurisdiction as suitable for the purpose specified and indicated.
2.03 SYSTEM LUBRICATED CIRCULATORS
A.
Type: Horizontal shaft, single stage, direct connected with multiple speed or single speed (as
listed on Pump Schedule) wet rotor motor for in-line mounting, for 140 psi (965 kPa) maximum
working pressure, 230 degrees F (110 degrees C) maximum water temperature.
B.
Casing: Cast iron with flanged pump connections.
C.
Impeller, Shaft, Rotor: Stainless Steel.
D.
Bearings: Metal Impregnated carbon (graphite) and ceramic.
E.
Motor: Impedance protected, multiple speed, with external speed selector.
F.
Performance: See Pump Schedule
G.
Electrical Characteristics:
1. 115 volts, single phase, 60 Hz.
15188 HVAC PUMPS
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2.04 INLINE CIRCULATORS
A.
Type: Horizontal shaft, single stage, direct connected, with resiliently mounted motor for in-line
mounting, oil lubricated, for 125 psi (860 kPa) maximum working pressure.
B.
Casing: Cast iron, with flanged pump connections.
C.
Impeller: Non-ferrous keyed to shaft.
D.
Bearings: Oil-lubricated bronze sleeve.
E.
Shaft: Alloy steel with bronze sleeve, integral thrust collar.
F.
Seal: Mechanical seal, 225 degrees F (107 degrees C) maximum continuous operating
temperature.
G.
Performance: See Pump Schedule
H. Electrical Characteristics: See Pump Schedule.
2.05 VERTICAL IN-LINE PUMPS
A.
Provide Armstrong single stage, single suction vertical In-Line type pumps, with rising head to
shut off pump characteristics.
1. Refer to the schedule for pump flows and heads and motor speed, efficiency, enclosure
and power requirements.
B.
Type: Vertical, single stage, close coupled, radially split casing, for in-line mounting, for 175 psi
(1200 kPa) working pressure.
C.
Construction:
1. Pump casing shall be cast iron, suitable for 175 psig (12 bar).
2. Working pressure at 140°f (60°c).
3. The casing shall be hydrostatically tested to 150% maximum working pressure.
4. The casing shall be radially split to allow removal of the rotating element without disturbing
the pipe connections.
5. The casing shall be provided with npt threaded companion flanges, for the appropriate
pump size, with gaskets and hardware.
6. Pump impeller shall be fully enclosed type. The impeller shall be keyed and secured to
pump shaft by stainless steel fittings.
7. The pump shaft shall be a stainless steel stub shaft for frame 56 motors. The steel motor
shaft shall be enclosed by a bronze shaft sleeve, on other motor frame sizes.
8. Coupling - Rigid spacer type of high tensile aluminum alloy. Coupling to be designed to be
easily removed on site to reveal a space between the pump and motor shafts sufficient to
remove all mechanical seal components for servicing and to be replaced without
disturbing the pump or motor.
9. Mechanical Seals - Shall be Stainless Steel multi-spring outside balanced type with Viton
secondary seal, carbon rotating face and silicon carbide stationary seat. Provide 316
stainless steel gland plate. Provide factory installed flush line with manual vent.
D.
E.
Casing: Cast iron, with suction and discharge gage port, casing wear ring, seal flush
connection, drain plug, flanged suction and discharge.
F. Impeller: Bronze, fully enclosed, keyed directly to motor shaft or extension.
2.06 BASE MOUNTED PUMPS
A.
Type: Horizontal shaft, single stage, direct connected, radially or horizontally split casing, for
125 psi (860 kPa) maximum working pressure.
B.
Casing: Cast iron, with suction and discharge gage ports, renewable bronze casing wearing
rings, seal flush connection, drain plug, flanged suction and discharge.
C.
Impeller: Bronze, fully enclosed, keyed to shaft.
D.
Bearings: Oil lubricated roller or ball bearings.
15188 HVAC PUMPS
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E.
Shaft: Alloy steel with copper, bronze, or stainless steel shaft sleeve.
F.
Seal: Mechanical seal, 225 degrees F (107 degrees C) maximum continuous operating
temperature.
G.
Seal: Packing gland with minimum four rings graphite impregnated packing and bronze lantern
rings, 250 degrees F (121 degrees C) maximum continuous operating temperature.
H.
Drive: Flexible coupling with coupling guard.
I.
Baseplate: Cast iron or fabricated steel with integral drain rim.
J.
Performance: See Pump Schedule for GPM and Head data.
K.
Electrical Characteristics: See Pump Schedule.
L.
Include suction diffuser for each base-mounted pump inlet.
PART 3 EXECUTION
3.01 PREPARATION
A. Verify that electric power is available and of the correct characteristics.
3.02 INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
Provide access space around pumps for service. Provide no less than minimum space
recommended by manufacturer.
C.
Check, align, and certify alignment of base mounted pumps prior to start-up.
D.
Install base-mounted pumps on concrete housekeeping pad as shown on Enlarged Mechanical
Room Plans.
E.
Provide side-stream filtration system for closed loop systems. Install across pump with flow
from pump discharge to pump suction from pump tappings.
END OF SECTION
15188 HVAC PUMPS
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SECTION 15720
AIR HANDLING UNITS
PART 1 GENERAL
1.01 SECTION INCLUDES
A.
Packaged air handling units.
1.02 REFERENCE STANDARDS
A.
AMCA 210 - Laboratory Methods of Testing Fans for Aerodynamic Performance Rating; Air
Movement and Control Association International, Inc.; 2007 (ANSI/AMCA 210, same as
ANSI/ASHRAE 51).
B.
AMCA 300 - Reverberant Room Method for Sound Testing of Fans; Air Movement and Control
Association International, Inc.; 2008.
C.
AMCA 301 - Methods for Calculating Fan Sound Ratings from Laboratory Test Data; Air
Movement and Control Association International, Inc; 2007.
D.
AMCA 500-D - Laboratory Methods of Testing Dampers for Rating; 2012.
E.
ASHRAE Std 52.2 - Method of Testing General Ventilation Air-Cleaning Devices for Removal
Efficiency by Particle Size; 2012.
F.
ASHRAE Std 90.1 - Energy Standard for Buildings Except Low-Rise Residential Buildings;
2013, Including All Addenda (ANSI/ASHRAE/IES Std 90.1).
G.
NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems; 2012.
1.03 SUBMITTALS
A.
Product Data:
1. Published Literature: Indicate dimensions, weights, capacities, ratings, gages and finishes
of materials, and electrical characteristics and connection requirements.
2. Filters: Data for filter media, filter performance data, filter assembly, and filter frames.
3. Fans: Performance and fan curves with specified operating point clearly plotted, power,
RPM.
4. Sound Power Level Data: Fan outlet and casing radiation at rated capacity.
5. Electrical Requirements: Power supply wiring including wiring diagrams for interlock and
control wiring, clearly indicating factory-installed and field-installed wiring.
B.
Shop Drawings: Indicate assembly, unit dimensions, weight loading, required clearances,
construction details, field connection details, and electrical characteristics and connection
requirements.
C.
Maintenance Data: Include instructions for lubrication, filter replacement, motor and drive
replacement, spare parts lists, and wiring diagrams.
1.04 EXTRA MATERIALS
A.
See Section 01 6000 - Product Requirements, for additional provisions.
B. Supply one set for each unit of fan belts.
PART 2 PRODUCTS
2.01 SEE SECTION 01600 FOR ADDITIONAL REQUIREMENTS.
2.02 MANUFACTURERS
A.
Daikin Applied; ______: www.daikinapplied.com.
B. Trane Inc; ______: www.trane.com.
2.03 CASING CONSTRUCTION
A.
Casing:
1. Construct of one piece, insulated, double wall panels.
2. Provide mid-span, no through metal, internal thermal break.
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3.
4.
Construct outer panels of galvanized steel and inner panels of galvanized steel.
Casing Air Pressure Performance Requirements:
B.
Access Doors:
1. Construction, thermal and air pressure performance same as casing.
2. Provide surface mounted handles on hinged, swing doors.
C.
Insulation:
1. Minimum 1" expanded foam, minimum R-4 per inch.
2. Completely fill all panel cavities in all directions preventing voids and settling.
3. Comply with NFPA 90A.
2.04 CASING
A.
Finish:
1. Indoor Units:
a. Provide exterior, galvanized steel panels without paint.
b. Color: Manufacturer's standard color.
B.
Left-Hand or Right-Hand coil and access panels. See Air Handler Schedule for required
orientation.
2.05 FAN SECTION
A.
Type: Forward curved, single width, single inlet, centrifugal type fan.
B. Variable-air-volume with maximum airflow listed on Air Handler Schedule.
2.06 FANS
A.
Performance Ratings: Determined in accordance with AMCA 210 and labeled with AMCA
Certified Rating Seal.
B.
Sound Ratings: AMCA 301; tested to AMCA 300 and label with AMCA Certified Sound Rating
Seal.
C.
Bearings: Self-aligning, grease lubricated, with lubrication fittings extended to exterior of casing
with plastic tube and grease fitting rigidly attached to casing.
D.
Mounting: Locate fan and motor internally on welded steel base coated with corrosion resistant
paint. Factory mount motor on slide rails. Provide access to motor, drive, and bearings through
removable casing panels or hinged access doors. Mount base on vibration isolators.
E.
Motor Wiring Conduit: Factory wire fan motor wiring to the unit mounted variable frequency
drive and external motor junction box.
F.
Inverter-rated motor, 208/60/3-phase.
2.07 BEARINGS AND DRIVES
A.
Shafts: Solid, hot rolled steel, ground and polished, with key-way, and protectively coated with
lubricating oil.
B.
V-Belt Drive: Cast iron or steel sheaves, dynamically balanced, bored to fit shafts, and keyed.
Variable and adjustable pitch sheaves for motors 15 hp and under selected so required rpm is
obtained with sheaves set at mid-position; fixed sheave for 20 hp and over, matched belts, and
drive rated as recommended by manufacturer or minimum 1.5 times nameplate rating of the
motor.
2.08 COIL SECTION
2.09 COILS
A.
Casing: Provide access to both sides of coils. Enclose coils with headers and return bends
exposed outside casing. Slide coils into casing through removable access panel.
B.
Water Heating Coils:
1. Headers: Cast iron, seamless copper tube, or prime coated steel pipe with brazed joints.
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2.
C.
Configuration: Drainable, with threaded plugs for drain and vent; serpentine type with
return bends on smaller sizes and return headers on larger sizes.
Refrigerant Coils:
1. Refrigerant: Use only refrigerants that have ozone depletion potential (ODP) of zero and
global warming potential (GWP) of less than 50.
2. Headers: Seamless copper tubes with silver brazed joints.
3. Liquid Distributors: Brass or copper venturi distributor with seamless copper distributor
tubes.
4. Configuration: Down feed with bottom suction.
2.10 FILTER AND AIR CLEANER SECTION
A.
General: Provide filter sections with filter racks, minimum of one access door for filter removal,
and filter block-offs to prevent air bypass.
B.
Throwaway Filters:
1. Media: 2 inch (50 mm) fiberglass with rigid supporting mesh across the leaving face,
capable of operating up to a maximum of 500 fpm (2.54 m/s) without loss of efficiency and
holding capacity.
2. Frame: Rigid.
3. Minimum Efficiency Reporting Value: 13 when tested in accordance with ASHRAE 52.2.
4. Refer to Section 15860.
2.11 DAMPER SECTION
A.
Outdoor air damper, 100% fresh air.
B.
Damper Blades:
1. Double-skin airfoil design with metal, compressible jamb seals and extruded-vinyl
blade-edge seals on all blades.
2. Self-lubricating stainless steel or synthetic sleeve bearings.
3. Comply with ASHRAE 90.1 for rated maximum leakage rate.
4. Base all leakage testing and pressure ratings on AMCA 500-D.
5. Arrange in parallel or opposed-blade configuration.
PART 3 EXECUTION
3.01 INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
If provided in section, bolt sections together with gaskets.
C.
Install flexible duct connections between fan inlet and discharge ductwork and air handling unit
sections. Ensure that metal bands of connectors are parallel with minimum one inch (25 mm)
flex between ductwork and fan while running.
D.
Make connections to coils with unions or flanges.
E.
Hydronic Coils:
1. Hydronic Coils: Connect water supply to leaving air side of coil (counterflow arrangement).
2. Provide shut-off valve on supply line and lockshield balancing valve with memory stop on
return line.
3. Locate water supply at bottom of supply header and return water connection at top.
4. Provide manual air vents at high points complete with stop valve.
5. Ensure water coils are drainable and provide drain connection at low points.
F.
Refrigerant Coils: Provide sight glass in liquid line within 12 inches (300 mm) of coil.
G.
Field-wire all factory provided controls for field installation.
END OF SECTION
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SECTION 15542
DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
PART 1 GENERAL
1.01 SECTION INCLUDES
A.
Dedicated Outdoor Air System (DOAS).
1. 100% Outdoor Air Unit.
2. Direct-fired, natural gas burner.
3. Direct-expansion condenser section.
4. Dehumidification condenser section.
5. Variable-air-volume supply air fan.
6. BacNet control board.
B. Direct-Fired Make-Up Air Unit
1.02 REFERENCE STANDARDS
1.03 SUBMITTALS
A.
Product Data: Provide data with dimensions, duct and service connections, accessories,
controls, electrical nameplate data, and wiring diagrams.
B.
Shop Drawings: Indicate dimensions, duct and service connections, accessories, controls,
electrical nameplate data, and wiring diagrams.
C.
Manufacturer's Instructions: Indicate rigging, assembly, and installation instructions.
D.
Operation And Maintenance Data: Include manufacturer's descriptive literature, operating
instructions, installation instructions, maintenance and repair data, and parts listing.
E.
Factory Representative Equipment Start-up and Validation: When complete installation of the
DOAS unit has taken place a factory authorized start-up shall take place. The start-up shall be
prior to, or shall be concurrent with the system test and balance. Factory test and validation of
the installation and operation shall be included.
F.
Warranty: Submit manufacturers warranty and ensure forms have been filled out in Owner s
name and registered with manufacturer.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A.
DOAS System: Reznor Model YDMA-300 packaged unitary make-up air and ventilation unit.
Contact Swaney Sales, Steve Swaney 616-247-1635 for pricing and ordering.
1. All others by Voluntary Alterate.
B.
Make-Up Air Unit: AbsolutAire Inc. Kalamazoo, MI. Contact Swaney Sales for ordering.
1.
2.02 DOAS UNIT
A.
Packaged unitary, roof top, downflow, variable air volume ventilation unit with DX cooling,
dehumidification, and direct-fired natural gas burner.
B.
DX Cooling
1. Unit: High Capacity DX Cooling Makeup Air Units utilizing R410-A Refrigerant:
2. Furnish and install model YDMA for treatment of up to 100% constant outside air per
plans and specifications. Unit shall be completely factory assembled, tested, internally
wired, fully charged with Refrigerant R410A, and shipped as one piece. Unit shall consist
of foam insulated weather-tight casing with optional field installed outdoor intake hood,
compressors, air-cooled condenser coils, condenser fans, evaporator coils, supply fan,
motors and drives, and unit controls. Packaged Cooling and Heating Units shall carry an
ETL listing. Refrigerant System:
3. DX systems shall be designed to provide 10% to 100% incremental capacity control for
treatment of up to 100% outside air with up to 80 degree F (27 degree C) dewpoint
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4.
5.
6.
entering the unit. Unit shall have hermetic compressors with a scroll design with internal
pressure relief and motor temperature winding protection. Compressor shall be equipped
with reversal rotation protection. Refrigeration protection shall include low and high
pressure switches, refrigerant circuit frost protection, liquid line filters/dryers and service
gage ports. The unit shall have a factory installed refrigerant charges to provide unit
performance as shown in the schedule. Low pressure switch shall operate at 35 psi or
lower pressure. The auto reset low pressure switch shall not reset until the pressure rises
about 50 psi. The manual reset high pressure switch shall operate above 600 psi with ± 15
psi. The unit will not reset without a user manually pushing the reset button and the
refrigerant line pressure is below 400 psi. Refrigeration control shall include thermal
expansion valves, external equalizers and distributors for each compressor circuit.
a. The refrigerant system shall have a non user adjustable 5 minute minimum ON and
minimum OFF timer circuit protection. The refrigerant circuit shall have an anti-cycle
timer in addition to the minimum ON/OFF timer that prevents the compressor(s) from
cycle on the minimum timer circuit.
b. The refrigerant system shall include evaporator coil. The copper tube-aluminum plate
fin evaporator coil shall be 4 rows with 14 fins per inch to meet leaving air
performance as shown on the unit schedule. The multi-circuit evaporator coils shall
be interlaced configuration. The entire coil face area shall be active with a single
circuit or multiple circuit activation such that the entire coil face shall provide air
cooling and dehumidification in part load operation. Split coil face design not
acceptable because it does not allow full active face area for dehumidification in the
part load operation. The evaporator coils shall be protected from frosting by a low
temperature cutout. The factory installed froststat on each circuit shall interrupt power
to the associated compressor when the temperature drops below 35°F. The frost stat
shall not deactivate until the circuit temperature rises to 50°F. The coils shall be leak
tested at the factory to ensure pressure integrity. The unit shall include air cooled
condenser coils sized to provide the unit performance as shown in the mechanical
schedule. The condenser coil shall be light weight 5/16 copper tubing with aluminum
fins. The condenser shall be compact 2 row coil design with low refrigerant volume.
The condenser coils shall NOT be aluminum micro-channel type design.
c. The condensate drain pan shall be rust proof or high corrosion resistant 316 stainless
steel. The drain outlet shall be attached to a double sloped drain pan with a minimum
1/8 inch per foot (10 mm per meter) slope. The drain pain shall collect potential
condensate from all evaporator/condenser coils and distributor area in the air stream
to prevent blow-off condensate reaching unprotected bottom unit surfaces. The unit
shall have field supplied and installed P trap, in accordance with all local and area
codes and Best Practices.
The unit shall be supplied with high efficiency electronically commutated motors (ECM) for
the condenser fans. The motors shall be rated for the necessary condenser coil airflows.
The motors shall have an efficiency 89% or higher. The condenser fans shall be
accessible for servicing. The condenser fan system shall be dynamically balanced at the
factory and installed with vibration dampening to reduce ambient noise. The motor shall
accept a 0-10v control signal and modulate based upon a command from the unit’s control
systems. The motor shall provide the following diagnostics and safety features:
Lockrotor/jam fault, over/under current protection, over temperature protection and
under/over voltage protection.
The condenser coils shall be copper tube and aluminum fin design. The coils shall be light
weight and low refrigerant volume with the use of 5/16 copper tubing. The condenser coils
shall NOT be aluminum micro-channel type design.
The evaporator coil(s) shall be copper tube and aluminum fin design. The evaporator coils
shall be interlaced, 4 row design maximizing latent performance as shown on the unit’s
mechanical schedule.
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7.
8.
C.
Unit compressors shall have sound blankets. The sound blanks shall reduce ambient
noise as demonstrated by sound performance sheets provided by manfacturer. Sound
blankets shall come factory installed. Blankets shall be rated for outdoor use.
Unit shall include DX based reheat. The method of reheat shall comply with ASHRAE 90.1
requirements. Unit shall include a dedicated compressor and refrigeration circuit using full
condenser reheat or total heat of rejection to the supply airstream. The reheat coil position
shall include a minimum separation of 10 inches (102 mm) from the cooling coil to
eliminate re-evaporation of cooling coil condensate. The circuit shall be capable of
delivering a nominal 13?F to 17?F temperature rise from the main evaporator temperature
without the need for modulating the capacity for all entering outside air conditions. The
reheat system shall modulate to maintain the user adjustable unit leaving air temperature
setpoint while also maintaining a constant evaporator temperature setpoint. The reheat
coil shall operate down to 50?F ambient temperature without the need of low ambient kit.
The reheat coil shall provide greater than 7 COP efficiency at 65?Fdb/64?Fwb entering air
temperature. Manufacturer shall show unit performance at above condition. The
refrigerant circuits shall include thermal expansion valves with external equalizers. Service
gage ports and refrigerant line filter dryers are factory installed as standard. Pre-cooling
coils shall be two row depth with 6 fin per inch to minimize air pressure drop.
Gas Heating
1. The system shall be provided with gas heat with the capacity shown the mechanical
schedule. Gas heating system shall be factory install consisting of heat exchanger, venter
fan, spark ignition system, control valves and all necessary safeties to provide a fully
operational heating system ready for operation from the factory. The heat exchanger shall
be constructed of 409 stainless steel for make-up air applications. The heat exchanger
shall properly drain condensate or other water during the heating and cooling season. The
system shall modulate both the gas and combustion air to maintain temperature
setpoint(s) and thermal efficiency. The heat exchanger shall be capable of 100 degree (F)
temperature rise for 100% outside air treatment. The heating system shall be certified to
ANSI Standard Z83.8/CSA 2.6. The heat exchanger shall be 4 pass serpentine, non
welded, constructed of 409 stainless steel. Safety Features shall consist but not limited to:
a. Automatic discharge air limit control.
b. Air proving pressure switch.
c. Color coded wiring and matching terminal blocks.
d. Circuit breaker protected transformers
2. The gas heating shall utilize natural gas.
3. Heating system shall have a minimum thermal efficiency of 91%. The thermal efficiency
shall not fall below 90% through the modulated operational range. The Heat exchanger
shall have condensate drain to remove and/or prevent water build up in the unit. The
condensate shall not exceed 4 pH level. The condensate shall be piped to the appropriate
building system for removal.
4. Provide 10:1 power vented modulation. The dual gas heat sections shall have a
modulating gas valve for first section and a single stage gas value for the second section
with spark ignition controls for both sections. The gas value shall modulate and stage to
provide 10 to 100% capacity control. (10:1) The gas control shall consist of ignition
boards, 2 speed venters, flame sensors, igniters, gas valves and associated safeties. The
spark ignition boards shall have LED status & diagnostic. The unit shall lock out heating
system banks for the following failures: venter pressure switch failure, ignition lockout,
excessive limit switch losses and excessive flame sense losses. The gas control system
shall be designed to maintain constant gas efficiency in all throughout the modulated
range. The dual heat exchanger shall modulate/stage as follows:
a. 10% - 50% Capacity = Bank 1 ON and modulating from 20-100%, Bank 2 OFF
b. 50% - 100% Capacity = Bank 1 ON and modulating from 20-100%, Bank 2 100%
Capacity.
c. Gas burner condensate shall be piped insulated down through curb indoors to
sanitary branch piping.
15542 DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
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D.
Unit shall have foam panel construction for all exterior surfaces and base. The foam insulation
shall meet ASTM E-84 with a flame spread of 20 and smoke density of 300. No foam panel
acceptable if unit construction exceeds R12 value, no exposed installation air stream and
exceed flame safety characteristic of foam paneling. Outer casing shall be fabricated from G90
galvanized steel substrate with 60 gloss painted finish coat. Finish shall be rated for > 1000 salt
spray hours. The cabinet design shall prevent condensation forming on the outside of the unit
casing in operation via a dedicated thermal break from all internal components to the external
surface. Fully gasketed, hinged doors of foam construction shall provide access to filters,
dampers, evaporator coils section, supply fan section. Provide hinged single wall construction
doors for the heater section and control section. On hinged doors frequently used for service
(i.e. filter and coil access) The unit control panel section shall be laid out to provide separation
of high and low voltage components per UL standards. High voltage contactors & distribution
shall be touch safe. The control panels shall be hinged for easy access to the unit controls. For
ease of service, all electrical components will be clearly identified with 1/2 inch (13 mm)
diameter self adhesive labels to match the unit specific wiring diagram. The low voltage and
unit controller access electrical panel shall be physically isolated from the high voltage section.
The open door to the control section reveals the wiring diagrams, DDC programming
instructions and all manuals and literature protected and permanently attached to the cover.
Control transformers will incorporate integral, resettable circuit breaker protection.
E.
Supply Fan
1. The unit’s supply fan shall be direct drive with an ABB variable frequency drive allowing
peak fan efficiency and system RPM. The fan system shall be made of galvanized steel.
The impeller shall have RAL 5002 coating, directional arrows marketing. The fan sled shall
allow up to 176°F (80°C) for the impeller and the motor shall allow ambient temperatures
-4°F to 104°F (-20°C to 40°C). The impeller and motor shall be designed for continuous
operation. The fan system shall utilize Zie Ziehl-Abegg patented rotating diffusor which
reduces noise and helps increase overall system efficiency. The 7 blade, welded
construction impeller shall be dynamically balanced at the factory with hub; admissible
vibration level less than 2,8 mm/s (0.11 in/s) in conformity with ANSI/AMCA 204.
a. The supply fan sled shall have slide out design for easy inspection and replacement.
b. The fan sled shall also allow inspection of the gas or electric heat exchangers.
c. The fan sled shall have rubber dampers to isolate and minimize vibration.
d. The fan sled shall include Inlet cone with measuring device for airflow measurement.
The packaged unit shall allow fan inlet differential pressure readings inside the
control panel to measure supply fan CFM with an accuracy of +/-5%. The unit
controller shall allow fan speed settings for occupied and unoccupied modes. The
unit controller shall also allow fan speed settings for heating and cooling modes. The
unit shall meet the schedule performance. The unit control system shall have test and
balance function to allow permanent setting of the airflow(s) as shown in the
mechanical schedule.
e. The ABB frequency drive shall be factory installed with line reactor, ECM Filter and all
necessary wiring per UL standard. The drive shall have built in menu drive display
with test, start-up, maintenance and diagnostic assistant. The drive shall be factory
programmed for 30 second soft start. The drive shall have the following protection
and alarms: single phase, overvoltage trip limit, under voltage trip limit, over
temperature, microprocessor fault, motor stall protection, motor over temperature.
2. Supply fan shall be control by duct static pressure. Duct static pressure sensor shall be
unit mounted; sensing range 0 -2.5” w.c.; 24 Vac, 0-10V signal; ± 1% FS accuracy; 1/4”
barb connections. Sensor shall have field installed 1/4” pneumatic tubing to the ductwork
located 2/3 down the duct. Sequence: Whenever the supply fan is running in any mode,
the fan speed shall varies to maintain the user selected duct static pressure setpoint.
(Default 1”, adjustable range 0-2.5”) When the supply fan is OFF, the VFD supply fan
signal will be 0%. (OFF) The control system shall limit the actual VFD range between a
user adjusted minimum and maximum output setting with default values of 25% and 100%
output - other mechanical limits may apply.
15542 DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
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F.
Intake & Section
1. Unit shall outdoor air hood design for 100% airflow to allow uniform coil velocity and filter
loading. The motorized damper shall be spring return for closure during unit shutdown or
power interruption. Outdoor air inlet hood shall include 1 inch (25 mm) permanent filters
and screen. Hood filter and screen shall meet MERV 4 rating. (Dust mites, pollen, and
water spray) Hood airflow shall not exceed 300 fpm intake velocity to prevent snow and
rain entrainment. Units designed for 100% outside air intake only shall include an
integrated transition section (without return air opening) designed specifically for 100%
outside air introduction.
2. Units shall have fully integrated factory installed 100% motorized outdoor air damper.
a. Damper Construction: The control damper shall be low leak with blade and jamb
seals. The damper leakage shall not exceed 10 cfm per square foot at 4” sp. The
damper shall be constructed of 16 gage galvanized steel with reinforcement to insure
structural integrity. Blade edge seals shall be PVC coated polyester fabric suitable for
-25°F to +180°F (-32°C to +83°C) mechanically locked into the blade edge. Jamb
seals shall be flexible stainless steel metal, compression type to prevent leakage
between end of the blade and the damper frame. Bearings shall be corrosion
resistant, molded synthetic sleeve type turning in an extruded hole in the damper
frame. Linkage shall be concealed out of airstream, within the damper frame to
reduce pressure drop and noise and lessen the need for maintenance.
b. The damper(s) shall be controlled from an external 0-10V input signal.
Sensors/Signal: User supplied 0-10 volt, 2 wire signal. Independent power source.
Sequence: The control system accepts a 0-10 volt signal that will position the damper
from 0-100% open between the user set maximum and minimum settings. The
damper shall modulate per the manufacturer recommendations to operated
concurrently with the variable air volume supply air fan.
G.
Filters: The unit shall have factory installed 4” MERV 13 filters before the evaporator coils. The
filters shall be accessible through a hinged door. None hinge door access is not acceptable.
The filters shall be pleated V configuration with an average arrestance of 95%; MERV Rating
13 per ASHRAE 52.2-99. The filters shall be manufactured from recycled synthetic material
with moisture & microbial growth resistant properties. The filter shall have less than 0.36” w.c.
pressure drop at 500 fpm air velocity. The filter area shall be sized to handle the rated airflow
as shown on the mechanical schedule.
H.
Roof Curb: The roof curb shall be 18" tall, full perimeter, 12 gage zinc coated steel with 2"x6"
nailer, fiilled with high density sound attenuating insulation.
I.
Controls: The unit discharge air temperature shall be controlled as described under the
Sequence of Operations.
1. The unit shall be supplied with a BacNet interface board.
J.
Include condensate neutralization kit for natural gas burner mounted in unit. Burner condensate
shall be piped down through curb to nearest sanitary pipe.
K.
Options
1. A weatherproof convenience outlet shall be provided. The outlet shall be field powered
utilizing an independent circuit form the main unit power. The circuit shall be 20 amp
circuit with breaker and installed per local and state building codes.
2. Unit shall have factory installed phase lost protection.
3. Unit shall have a factory provided 5 year compressor warranty.
4. Unit shall have a factory provided 5 year gas heat exchanger warranty.
5. Unit shall have a factory provided 2 year all parts warranty.
L.
Factory-Authorized Start-up and Validation:
1. When installation of the DOAS unit is complete a factory-authorized start-up shall take
place. The start-up shall be prior to, or shall be concurrent with the system test and
balance. Factory test and validation of the installation and operation shall be included.
15542 DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
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a.
Northland Integrated Systems, 13969 Francis Way, Cedar Springs, MI. 49319.
Phone: 616-439-3100.
2.03 DIRECT-FIRED MAKE-UP AIR UNIT
A.
Provide a direct gas-fired roof top heater with100% Outside Air variable volume blower.
B.
Provide self-contained packaged heaters that shall include the casing, modulating burner,
DWDI FC scrolled centrifugal fan, fan motor & drives, variable frequency drive capable of 50%
supply air reduction, and automatic controls to interlock to equipment and maintain space
pressure.
C.
Provide a casing, which shall be a minimum 18-gauge, aluminized steel, welded to structural
steel framing. Both interior and exterior structural steel shall be red-oxide primed. All exterior
casing seams shall be weather resistant. All interior and exterior surfaces will be cleaned of all
oil and grease. Painted exterior will consist of a high-quality prime coat and a finish coat of
machine enamel with rust inhibitors. Color is selected by the owner. The insulation shall comply
with UL standard 181 for erosion and NFPA 90A for fire resistance. All exposed edges will be
coated to eliminate erosion. Fiberglass will be held in place with both adhesive and welded
pins, per SMACNA standards. Provide a minimum of (2) hinged access doors with positive
latching, watertight handles. All weather enclosure doors shall be painted on the interior as well
as the exterior and shall include braces that lock the door open during servicing.
D.
Burner: The burner shall be a direct-fired type gas burner which shall be selected by the
supplier/manufacturer to operate with low gas pressure 6.0" w.g. or less, specifically designed
to burn natural gas below the maximum non-contaminating levels required by OSHA and the
ACGIH. Burner shall have non-clogging, stainless steel baffles attached to a cast aluminum gas
supply section with no moving parts. The burner shall be capable of a 30-to-1 turndown ratio
and be designed for 100% thermal efficiency for the life of the equipment. The outdoor air
velocity across the burner shall be constant and at an air velocity required for ANSI certification.
The burner air velocity shall be constant at all times throughout the operation of the heater. No
air from the indoor space shall be allowed to recirculate across the burner at any time. Service
of and access to the burner igniter and flame rod shall be accomplished through an access
door or panel.
E.
Burner Profile Adjustment System: shall consist of a means to monitor and adjust the pressure
differential across the burner profile while the fan is running. The burner profile will remain fixed
while in service and use.
F.
Pilot: the direct fired burner will consist of a direct spark ignition system, including an ignition
module, spark igniter, and flame rod to verify burner low fire (pilot) ignition before allowing the
main gas valve to fully open.
G.
Supply fan: shall be a double-width, double-inlet, centrifugal design, belt driven for the required
air capacity. The motor shall be 1750 rpm, standard NEMA frame, Open Drip Proof (ODP) high
eficiency inverter-rated, and mounted on an adjustable pivot base. The motor shall have a 1.15
service factor, suitable for continuous service at 120° F ambient temperature, and shall be
wired for the specified voltage. The fan, motor, and drive shall be factory tested to ensure the
specified air delivery (per ANSI standards) at the design total static pressure. The fan shaft
shall be connected to the motor by a V-belt drive, capacity designed for 30% over the motor
nameplate horsepower. The fan shaft shall be a turned, ground and polished solid shaft. A
protective coating shall be applied to the shaft to minimize oxidation. Fan shall have ball
bearings, and shall be designed for a minimum L10 life of 100,000.
H.
Controls:
1. Main Control Panel: shall be similar to NEMA 3R and contain all standard electrical
components, such as [non] fused disconnect switch; motor starter; 120-volt and 24-volt
transformers; control circuit fuses; flame control relay and a number-coded terminal strip.
The control panel shall have a burner flame relay to lockout the flame in abnormal
conditions. A remote flame reset button shall allow personnel to reset the burner at the
15542 DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
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2.
3.
4.
5.
6.
7.
I.
remote control panel. The complete control and safety system as well as the burner and
gas manifold shall be factory tested.
Temperature Controls:
a. Discharge Temperature Control:
b. A solid state temperature control system, located inside the control panel includes a
sensing thermistor located in the supply fan discharge opening. The thermistor
senses and controls discharge temperature. The temperature control for adjusting the
discharge air temperature is located at [the main unit] [the remote panel].
c. Space Temperature Control:
d. A solid-state temperature control system, located inside the control panel, shall have
a sensing thermistor located in the space as shown on the plans. The thermistor
senses and controls the room temperature in the occupied mode. A second
thermistor, mounted in the heater discharge, controls the allowable maximum and
minimum discharge temperature in response to the actual discharge temperature
being sensed.
Automatic Building Pressure Control [with Manual Override]:
a. A space pressure controller shall be incorporated into the factory temperature
controls that shall modulate the supply air fan to maintain an adjustable space
pressure.
Remote Control Panel: shall be provided and includes all necessary remote operating
switches and circuit analyzer lights. The remote control panel shall be painted mild steel.
Wiring to remote panel from the main control panel shall be accomplished with 120/1/60
and/or 24 volt wiring circuits.
a. The remote control panel shall provide each heater with the following (choose):
1) a manual pressure-control potentiometer,
2) an occupied room temperature stat. (The stat room sensor shall be remote
mounted where noted on the plan),
3) a room-temperature unoccupied cycle stat (the stat sensor remote shall be
mounted where noted on the plan),
4) a programmable 7-Day time clock with a minimum of four (4) programmable
on/off schedules per day, with battery back-up reserve.
5) a burner alarm horn with silence switch,
6) a [tamper proof, key operated] Summer/Off/Winter switch,
7) a [tamper proof, key operated] remote burner-flame reset switch,
8) a [tamper proof, key operated] manual/auto building pressure selector switch
and,
9) These system circuit analyzer lights:
10) Power On
11) Fan On
12) Burner On
13) Low Temperature Alarm
Low-Temperature Limit Switch: turns the fan motor off when cold air is being discharged
from the heater. The minimum discharge temperature may be selected from 0°F to 70°F.
An integral timer shall by-pass this switch for five (5) minutes on initial start-up.
High-Temperature Limit Switch: turns the burner off when the discharge air temperature
exceeds 130°F. The switch must then be manually reset at the heater.
Gas manifold: shall be sized for the rated BTU (MBH) capacity as scheduled on the
drawings. The gas manifold will be constructed in conformance to ANSI Standards [and
Factory Mutual (FM) / Industrial Risk Insurers (IRI) insurance requirements].
Accessories (select each optional accessory needed):
1. High Gas Pressure Switches: a high gas-pressure switch located on the burner end of the
gas manifold and shall turn the burner off when the gas pressure is too high.
2. Filtered Inlet Hood: this option includes filters accessible from the inlet hood face. Filters
are a 2” aluminum mesh washable filter.
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3.
4.
5.
6.
7.
Inlet Hood with Bird Screen: manufactured using the same gauge and metal type as the
base unit and includes ½” x ½” galv. bird screen.
Variable Frequency Drive: variable volume 100% OA models includes an automatic
building pressure control, a variable frequency drive (VFD) for supply fan speed control
and a burner profile damper with a pressure differential switch to control and maintain the
proper burner airflow across the burner profile. Includes a building pressure differential
switch to signal the VFD to vary fan speed as needed in response to the building negative
or positive conditions. This diaphragm [photohelic] switch is mounted in the heater main
control panel. The pressure sensing range shall be 0.01 to 0.20” W.C. with a null span of
0.01 to 0.03 inches water column.
Roof Curb (horizontal units): provide a duct supply-air curb, 20" high flat curb, formed of
heavy-gauge aluminized steel. Contractor shall shim the curb so that it is level and shall
install a cant strip and wood nailer per detail on the plans.
Gravity [Inlet / Discharge] Damper: a parallel blade damper is provided in a flange
assembly which is shipped loose for field installation by others. Damper blades are
constructed of fabricated aluminum and have adjustable weights for balancing.
Provide a BacNet interface board for interconnection to the Tridium BCS.
PART 3 EXECUTION
3.01 INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
DOAS unit shall be installed exactly where shown to ensure the roof opening and supply air
duct discharges between the correct roof trusses. There is no room for ductwork to run below
the roof trusses.
1. Coordinate roof rough opening with Construction Manager and roofing contractor.
2. Coordinate supply air duct connection to curb and unit and duct transition from roof
penetration down into truss bay. Note that the main 24"x24" outdoor air supply duct must
run between trusses to allow piping tight to the trusses below. See Enlarged Mechanical
Room Plan 126 for pipe routing and coordinate with plumbing plans.
C.
Temperature Control Contractor shall interconnect and integrate the BacNet interface board to
BMS. See Sequence of Operations for more information.
D.
Connect natural gas piping to unit per manufacturer installation instructions. Field verify
connection size.
E.
Provide factory authorized start-up and validation of DOAS unit.
F.
Provide final test and balance of system.
END OF SECTION
15542 DEDICATED OUTDOOR AIR SYSTEMS AND MAKE-UP AIR UNITS
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SECTION 15739
CRITICAL COOLING UNITS
PART 1 GENERAL
1.01 SECTION INCLUDES
A.
Critical Cooling Unit.
B.
Indoor, Water-cooled Critical Cooling Condensing Unit.
C.
Controls.
1.02 SUBMITTALS
A.
Product Data: Provide manufacturers literature and data indicating water, drain, and electrical
characteristics and connection requirements.
B.
Operation and Maintenance Data: Include manufacturer's descriptive literature, operating
instructions, installation instructions, maintenance and repair data.
C.
Warranty: Submit manufacturer's warranty and ensure forms have been filled out in Owner's
name and registered with manufacturer.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A.
Liebert Corporation; Model Evaporator: MMD36E7YHED0, Water-Cooled Condenser:
MCD38W3YH7: www.liebert.com.
2.02 AIR CONDITIONING UNITS
A.
Description: Self contained water cooled, factory assembled, pre-wired and pre-piped unit,
consisting of cabinet, fan, filters, with wall-mount controls and BacNet interface card to
interconnect to the Tridium Vykon BCS.
B.
Assembly: For horizontal ceiling mounting to fit 24 x 48 inches (610 x 1220 mm) T-bar ceiling
opening.
C.
Refrigerant: R407C.
D.
Evaporator: 3-ton, nominal, Liebert Mini-Mate.
1. DX evaporatorfilter drer, and TXV.
2. Direct-drive supply air blower.
3. Microprocessor control with audible and visual switch.
4. Maunufacturer supply non-locking disconnect switch.
5. Canister-style humidifier, 4.3 lbs/hr.
6. Condensate pump, powered from evaporator.
7. MERV-8 Filter.
8. Optional 48"x24" air distribution plenum.
E.
Condenser: Water-cooled interconnected to the water-cooled VRF heat pump water loop.
1. Indoor cabinet hung from building structure above lay-in ceiling.
2. 7/8" OD CU heat pump water supply and return piping connections with supply water
temperature range 60 deg. F to 85 deg. F.
3. Hot-gas bypass.
4. DX refrigerant piping between condenser and evaporator. See manufacturer's installation
instructions for refrigerant pipe sizes, and requirements.
2.03 CONTROL SYSTEM
A.
Microprocessor control panel with audible and visual alarms.
B.
Liebert model NIC-ENCL1 IntelliSlot Modbus adapter card.
1. Delivers WEB, Telnet, SNMP and EIA-485 MODBUS communication and control
capabilities using one IntelliSlot Web/485 Adapter in an externally mounted steel
enclosure for monitoring Liebert Datawave units. Delivers WEB, Telnet, SNMP, EIA-485
15739 CRITICAL COOLING UNITS
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MODBUS and BACnet IP communication and control capabilities using one IntelliSlot
Web/485 Adapter in an externally mounted steel enclosure for monitoring Liebert
DataMate and Mini-Mate2 units. The self-contained kit is intended for applications where
internal mounting is difficult or not possible, and includes an external 120 VAC to 24 VAC.
2. Temperature Control Contractor shall interconnect adapter card and integrate controller to
BCS.
PART 3 EXECUTION
3.01 EXAMINATION
A.
Verify that ceiling system is ready to receive work and opening dimensions are as indicated on
shop drawings.
B.
Verify that electric power is available and of the correct characteristics.
3.02 INSTALLATION
A.
Install in accordance with manufacturer's instructions.
B.
Coordinate installation of air conditioning unit with computer room ceiling installer.
C.
Pipe heat pump water supply and return to unit including strainer, isolation valve, return side
circuit setter, and coil drain. Include flow-switch and pipe accessories per manufacturer's
installation instructions.
D.
Pipe refrigerant piping between condenser and evaporator instrict accordance with
manufacturer installation instructions. Provide 407C charge as needed.
E.
Install condensate pump and pipe to nearest gravity drained condensate main pipe.
F.
Install control panel, room thermostat controller, and interconnect to BCS.
END OF SECTION
15739 CRITICAL COOLING UNITS
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SECTION 15260
THERMAL INSULATION
PART 1 GENERAL
This section includes thermal insulation specifications for all plumbing and HVAC equipment.
1.01
1.02
Quality Assurance:
A.
Bidders shall specialize in mechanical insulation application and have a minimum of three
years experience, or pre-approval for bidding from the engineer.
B.
Furnish insulation, jackets, coverings, sealers, mastics, and adhesives with flame-spread
index of 25 or less, and smoke-developed index of 50 or less, in accordance with the 2003
Michigan Mechanical Code (MMC), ASTM E-8, NFPA 255, or UL 723.
C.
Insulation shall be furnished and installed in compliance with the National Commercial &
Industrial Insulation Standards, 5th Edition. Refer to www.insulation.org/index for manual
information.
D.
Insulation shall meet standards specified by the American Society of Heating, Refrigeration,
and Air-Conditioning Engineers, National Voluntary Consensus Standard 90.1 (1999),
"Energy Efficient Design of New Buildings (ASHRAE 90.1-1999.)
Performance Specification:
A.
Insulation materials furnished should meet the minimum thickness requirements of ASHRAE
90.1-1999. However, if other factors such as condensation control or personnel protection
are to be considered, the selection of the thickness of insulation should satisfy the
controlling factor.
B.
Insulation materials furnished and installed hereunder shall meet the fire hazard
requirements of applicable building codes when tested in composite form per one of the
following nominally equivalent test methods:
1. American Society for Testing of Materials
2. Underwriters' Laboratories, Inc.
3. National Fire Protection Association
C.
1.03
ASTM E-84
UL 723 (CAN/ULC-S102-M88)
NFPA 255
As specified in ASTM E-84, and the 2003 MMC, all insulation shall have a flame spread
index of not more that 25, and a smoke-developed index of not more than 50 (MMC Section
602.)
Submittals:
A.
Provide manufacturer data and installation sheets for each type of insulation material used.
B.
Provide (10) copies of bound shop drawings. Shop drawing submittals shall include:
1. Job Name
2. Supplier and contractor name, address, phone, and fax.
3. Material specifications and intended area of use.
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PART 2 PRODUCTS
2.01
Manufacturers:
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
Owens Corning
Certainteed
Knauf
3M
Insulation Solutions
TVM Building Products
Pabco-Childers Metals
Armacell Engineered Foams (formerly Armstrong Insulation Company)
TruBro
McGuire Manufacturing Company
Contact Nealis Engineering at 231-933-0510 for other insulation manufacturer approval.
PART 3 MATERIALS
Type 1
Non-Flexible, Jacketed, Fiberglass Pipe Insulation
1.
2.
3.
4.
C.
D.
E.
F.
Fiberglass pipe Insulation
Heavy density resin bonded inorganic fibers
Formaldehyde Free
Hinged sections to slip over pipe
Smooth, reinforced, vapor retardant, all service jacket (ASJ)
Longitudinal, pressure sensitive adhesive self-sealing lap seal and butt seal
Approved for use up to 850 deg. F.
Meets ASTM C 547 (mineral fiber insulation), ASTM 1136 (vapor barrier), ASTM C 795
(austenitic stainless steel)
G. Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Type 2
Non-Flexible, PVC Jacketed, Fiberglass Pipe Insulation
1. Same as Type A, except shall be securely covered with 15 mil PVC jacket.
2. Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Type 3
Foil-backed, All Service Duct Wrap Insulation
1.
2.
3.
4.
5.
Type 4
0.75 pounds per cubic feet (pcf)
Thermal resistance, R = 3.5 hr-sf-F/Btu (1-1/2” thick)
Foil, reinforced, kraft low permeance vapor retarder backing (foil-backed)
Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Paper-backed insulation typically does not meet ASTM E-84, and shall not be approved.
Preformed Pipe and P-Trap Covers for ADA Barrier Free Lavatories and Sinks
1. Soft molded vinyl exterior
2. 1/8” thick with internal ribs
3. Shall fit 1-1/4” or 1-1/2” cast brass, tubular p-trap assemblies, and schedule 40 PVC ptraps
4. Bacteria and fungi resistance
5. White color, latex paintable
6. Ceanable
7. ASTM D-635
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8. For specified use only
Type 5
Flexible, Closed-Cell, Pipe Insulation
1.
2.
3.
4.
5.
6.
7.
Type 6
Duct Liner for Thermal Insulation Purposes
1.
2.
3.
4.
5.
6.
7.
8.
Type 7
Bonded glass fiber blanket
Thermal Conductivity, K = 0.25 Btu-in/hr-SF-F
R = 8.0 hr-sf-F/Btu (2” thick)
Bacterial and fungi resistance ASTM C 1338 and ASTM G-21 (fungi), ASTM G-22
(bacteria)
Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Sheet metal contractor to provide and install duct liner
Include manufacturer specified fasteners and adhesives
See HVAC Ductwork Specification Section 15890 for further installation info
Zero-Clearance Duct Wrap for Type 1, Grease-Laden Ductwork and Hoods
1.
2.
3.
4.
5.
6.
7.
8.
Type 8
Closed-cell, flexible, elastomeric, piping insulation (Armaflex or Equal)
Thermal Conductivity, K = 0.27 Btu-in/hr-sf-F
Vapor transmission 0.08 perm-in
Non CFC, HFC, HCFC, manufactured, and formaldehyde free
Mold and mildew resistant
Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Include seam and butt joint adhesive
Fire-resistant wrap consisting of inorganic blanket encapsulated with scrim-reinforced foil
Used as alternative to 1 and 2 hour rated shaft assemblies
Zero-clearance, two (2) hour fire rating
Non-asbestos
Zero smoke and fire developed index
ASTM C 411, ASTM C 518, ASTM E-84, ASTM E-19, ASTM E-136, ASTM E-814
UL 1978
Include silicone seam sealants per manufacturer recommendations and specifications.
Specialty Insulation Covers
1.
2.
3.
4.
5.
8.
9.
10.
11.
Closed-cell, flexible, elastomeric, sheet or roll insulation
1” thick
Thermal Conductivity, K = 0.27 Btu-in/hr-sf-F
Vapor transmission 0.08 perm-in
Non CFC, HFC, HCFC, manufactured, and formaldehyde free
Mold and mildew resistant
Meets 25/50 flame and smoke developed index, ASTM E-84, NFPA 90A
Include seam and butt joint adhesive
Field fabricated insulated sheet metal cover to cover chilled-water pump casing and
flanges
12. Removable and reusable sheet metal cover
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Type 9
Radiant Floor and Snowmelt Insulation
Three types of radiant floor and snowmelt insulation are approved for use.
A. Insulated Tarp
1.
2.
3.
4.
5.
6.
7.
High density closed-cell foam and high density polyethylene bubble-wrap
sandwiched between cross-woven polyethylene sheets with reflective aluminum
inner backing.
Thickness = 3/4"
Thermal resistance, R = 7.5 hr-sf-F/Btu
Permeance = .002 perms
Temperature rating = 180 deg. F to -60 deg. F
Compressive strength for use up to 90 psi (12,960 lbf/sf), for use under sidewalks,
residential and heavy equipment garages, garage aprons, and driveways.
Not approved for other mechanical thermal insulation uses
B. High Density Polystyrene Insulation with Vapor Barrier
1.
2.
3.
4.
High density extruded polystyrene sheets
Thickness = 1”
Thermal resistance, R = 5.0 hr-sf-F/Btu
Compressive strength to meet use
a. 25 psi (3600 lbf/sf), typical for radiant floor heat, sidewalks, and residential
garages.
b. 40 psi (5760 lbf/sf), for light commercial garages, garage aprons, and driveways.
c. 60 psi (8640 lbf/sf), for medium duty commercial garages, garage aprons, and
driveways.
d. 100 psi (14,400 lbf/sf), for heavy equipment garages, garage aprons, and
driveways.
e. Refer to structural engineering and architectural drawings and specifications for
further information, and verify use with general contractor.
5.
6.
7.
Install separate 4 mil polyethylene roll sheet underneath high density sheets for
vapor barrier, permeance less than 0.08 perms
ASTM D1621, ASTM E 96
Not approved for other mechanical thermal insulation uses.
C. Aluminum Foil and Bubble Wrap Sheeting (Voluntary Alternate Only)
1.
2.
3.
4.
5.
6.
7.
Two layers of polyethylene bubble wrap insulation and aluminum foil reflective
surface sheeting.
Thickness = 5/16” (may vary)
Thermal resistance = not less than 3.5 hr-sf-F/Btu per ASTM C236
Temperature rating = 180 deg. F to -50 deg. F
Permeance = less than 0.05 perms
Compressive strength = 100 psi (14,400 lbf/sf)
Not approved for other mechanical thermal insulation uses.
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3.01
Accessories
All insulation accessories shall meet state and local fire codes, and shall meet NFPA 90A for use
within air plenums.
.
A.
Closure Materials including butt strips, bands, wires, staples, mastics, adhesives, caulks or
sealants, pressure-sensitive tapes.
B.
Support materials including hanger straps, hanger rods, saddles, and support rings, wire
mesh, plastic ties, etc.
C.
Fastener materials including welded pin or adhesive pin mechanical fasteners, speed clips,
pressure-sensitive tapes, caulks or sealants
D.
Jackets and Prefabricated Fitting Covers
1. PVC Jackets
a. Minimum 0.028 inch thick
b. Bacterial and mildew resistant
c. Designed for exterior use
2. Aluminum Jackets
a. Aluminum Alloy
b. 0.010” thick
c. Moisture barrier
d. Smooth finish
e. Include 45 or 90 degree short and long radius elbows, and end caps as
necessary
3.02
Installation Instructions
Refer to the following Insulation Schedule areas of insulation use and insulation thickness.
PIPING INSULATION SCHEDULE
Service
Domestic Water Pipe,
CW, HW
Domestic Water Pipe,
CW, HW
Roof and Storm Drains
Exposed Roof and
Storm Drains
P-Traps, HW and CW
Piping Below ADA
Barrier Free Lavatories
and Sinks
Heating Hot Water
Pipe, HWS and HWR
Heating Hot Water
Pipe, HWS and HWR
Chilled Water Pipe,
CHWS and CHWR
Condensate Piping in
Unconditioned or
Pipe Size
Type
Thickness
Less than 4”
1
1/2"
4” and Greater
1
1"
All Sizes
1
1"
All Sizes
2
1"
All Sizes
4
1/8"
Less than 4”
1
1"
4” and Greater
1
1-1/2"
All Sizes
1
1"
All Sizes
1
1/2"
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Conditioned Spaces
Exposed Condensate
Piping
Exposed Heating Hot
Water Pipe, HWS and
HWR
Exposed Chilled Water
Pipe, CHWS and
CHWR
Underground Hot
Water Supply and
Return Pipe
Underground
Snowmelt or Radiant
Heat Piping Mains
All Sizes
2
1/2"
All Sizes
2
1"
All Sizes
2
1"
All Sizes
5
1"
All Sizes
5
1"
EQUIPMENT INSULATION SCHEDULE
Type
Supply Air Ductwork
(Exposed ductwork
shall not be insulated)
Return Air Ductwork in
Indirectly Conditioned
Spaces
Return Air Ductwork in
Plenums or
Conditioned Spaces
Outdoor Supply and
Return Ductwork
Fresh Air (Outdoor Air)
Ductwork - All Cases
Combustion Air Duct
Work - All Cases
Exhaust Air Ductwork
in Unconditioned,
Concealed,
Inaccessible Spaces
Exhaust Air Ductwork
in Plenums or
Conditioned Spaces
Relief Air Ductwork in
Unconditioned,
Concealed,
Inaccessible Spaces
Relief Air Ductwork in
Plenums or
Conditioned Spaces
VRF Refrigerant
Suction and Liquid
Lined
Chilled Water Pumps
Equipment Size
Insulation Type
Thickness
All Sizes
3
1-1/2"
All Sizes
N/A
Not Required
All Sizes
Not Required
Not Required
All Sizes
6
2"
All Sizes
3
2"
All Sizes
3
2"
All Sizes
3
1-1/2"
All Sizes
Not Required
Not Required
All Sizes
3
1-1/2"
All Sizes
Not Required
Not Required
All Sizes
5
3/4"
All Sizes
8
1"
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Chilled Water Air
Separators
Radiant Floor and/or
Snowmelt
Underground Ductwork
3.03
All Sizes
8
1"
All Sizes
9
See Spec Above
All Sizes
9
Min. R-3.5 See Section
3.08 Below
Installation
A.
General Instructions:
1.
2.
3.
4.
5.
6.
7.
8.
B.
Type 1, Pipe Insulation
1.
2.
3.
4.
5.
C.
Install all materials in strict accordance to manufacturer’s specifications.
Install insulation after testing and testing approval is completed, in coordination with the
mechanical contractor.
Install insulation after heat tracing, or buried pipe tracing, is installed.
Butt edges of insulation together, and seal joints with proper adhesives or jackets per
manufacturer specifications.
Seal insulation butt joints with 3” pressure-sensitive tape.
Hot Water Systems: For hot water systems insulation is not required to be installed on
valves, control valves, strainers, air separators, expansion tanks, and pump housings.
See below for more info.
Heat pump piping (HPWS/R) is not required to be insulated.
All variable refrigerant flow (VRF) system refrigerant piping shall be insulated per the
manufacturer installation instructions. Coordinate with VRF system supplier and
certified refrigerant piping supplier.
Clean all piping free of dirt, grease, flux, etc.
Install insulation materials with smooth and even surfaces. Insulate each continuous
run of piping with full-length units of insulation, with single cut piece to complete run.
Do not use cut pieces or scraps abutting each other. Butt insulation joints firmly to
ensure complete, tight fit over all piping surfaces.
Butt pipe insulation against hanger inserts. Secure with self-sealing facing tabs or 3”
wide pressure sensitive tape.
On non-serviceable unions, flanges, pipe terminations etc., provide prefabricated fitting
covers.
On serviceable items use removable and reusable, prefabricated fitting covers.
Type 2, PVC Jacketed Pipe Insulation
1.
2.
3.
4.
Same as Type 1 insulation, with PVC jacket installed over pipe insulation.
PVC jacketing shall be designed to fit over Type 1 insulation.
Install PVC jacketing per manufacturer instructions.
Install prefabricated PVC jacketing for:
a.
b.
c.
d.
5.
Elbows
End-Caps
Chilled water systems listed below
Non-serviceable hot water piping systems listed below.
Secure PVC jacketing with approved PVC sealant and banding.
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D.
Type 3, Foil-Backed All-Service Duct Insulation
1.
Clean all ductwork free of dust and grease. Verify that ductwork is dry, and joints are
tightly sealed, and joint sealant is applied.
Completely cover all supply, outdoor air, and/or return and exhaust ductwork as
specified in the Insulation Schedule.
Remove a 2” piece of insulation from the foiled backing at the end of the piece of duct
wrap to form an overlapping stapling and taping flap seam.
Install duct wrap insulation with facing outside so that the tape flap overlaps the
insulation and facing at the other end of the piece of duct wrap. Adjacent sections of
duct wrap insulation shall be tightly butted with the 2" stapling and taping flap
overlapping. If ducts are rectangular or square, install so insulation is not excessively
compressed at corners.
Staple seams at 6” on-center intervals with outward clinching 1/2” steel staples.
Seal seams with 3” pressure sensitive tape. Cloth duct tape of any color or finish using
reclaimed rubber adhesives is not approved for use.
Where rectangular ducts are 24" (600mm) in width or greater, duct wrap insulation shall
be additionally secured to the bottom of the duct with mechanical adhesive pinfasteners, and speed clips.
2.
3.
4.
5.
6.
7.
3.04
Preformed Pipe and P-Trap Covers for ADA Barrier Free Lavatories and Sinks
A.
ADA Barrier Free preformed pipe and p-trap covers shall be installed per manufacturer
instructions where indicated on the Plumbing Drawings and Fixture Schedule.
1. Type 5, Flexible, Closed-Cell, Pipe Insulation
1.
2.
3.05
Clean all piping free of dirt, grease, flux, etc.
Install insulation over all piping, unions, or flanges.
Hot Water System Components:
A.
Install insulation on all equipment listed below.
B.
Insulation is not required on the following hot water systems:
1.
2.
3.
4.
5.
6.
Valves
Control Valves
Strainers
Air Separators
Expansion Tanks
Pumps
C.
Extend insulation without interruption through walls, floors and similar penetrations, except
where otherwise indicated.
D.
Apply foam insulation between piping and pipe sleeves that penetrate exterior walls or
floors, and seal with 100% silicone caulk.
E.
Do not insulate pipe that penetrates fire rated walls, floors, or ceilings.
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3.07
Underground Piping:
A. Insulate all snowmelt tubing between the point it leaves the snowmelt manifold (indoors) to
the point it enters the concrete sidewalk slab.
B. Provide smooth or level trench, clean of debris, between 18” and 24” below grade, for all
underground piping.
C. Provide pipe sleeves for all penetrations through walls and slabs.
D. Install all underground fittings and unions per manufacturer specifications.
E. Install a continuous, unbroken, vapor barrier over all underground piping insulation.
F. Provide As-Built Drawings to engineer and owner showing the exact location and depth of all
underground piping.
G. Provide clean backfill, free of debris.
3.08
Underground Ductwork:
A. Insulate around all underground ductwork with a minimum R-3.5 insulation. The installing
contractor has their choice of using Type-9 rigid insulation, Insul-Tarp, or bubble-wrap insulation.
In this case the bubble-wrap is approved as Base Bid, and is not a voluntary alternate only.
END OF SECTION
15260 THERMAL INSULATION
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