Solar Water Heater-Swimming Pool
Bid No. B15-03
***Specifications***
Scope of Work
Bid RFI Questions Due:
Thursday, February 12, 2014 3:00PM
Gale Stevens, Buyer
gasteven@cabrillo.edu
Bid Documents: Gale Stevens, Buyer 831-477-5613
Cabrillo College: Joe Nugent, Director Facilities Planning & Plant Operations
Project Manager: Jon Salisbury, Innovative Construction Services, Inc.
Engineer: Breene Kerr, Visualize Solar
Cabrillo Solar Pool Heater Scope of Work
BK 02/01/2015
Note: The summary below is a guide to the major project scope of work tasks and should in no way be construed to
eliminate any details shown on the “Cabrillo Community College Solar Water Heater – Swimming Pool” plan set
DESCRIPTION: DESCRIPTION: THIS IS A SOLAR POOL WATER HEATING SYSTEM
UTILIZING A CLOSED LOOP GLYCOL COLLECTOR FIELD AND HEAT EXCHANGER
SITE PREPARATION:
-PREPARE SITE PER ARCHITECTS PLANS, INCLUDING EROSION CONTROL PLAN
-REMOVE LARGE REDWOOD TREE, SOUTHEAST CORNER OF AREA OF SOLAR FIELD
CONSTRUCTION
-TRENCH FOR UNDERGROUND PIPING, CONTROL AND ELECRICAL CONDUIT
- BUILD RETAINING WALL, LAYOUT FENCE PERIMETER LINES
- LEVEL AREA FOR PUMP STATION
- APPLY SOLAR FIELD SURFACE PER PLANS
- PRIOR TO INSTALLING SOLAR PANELS AND EXTERNAL PUMP STATION, BUILD FENCE
AND GATES, INSTALL LOCKS, ETC. TO SECURE SOLAR EQUIPMENT FIELD
GLYCOL LOOP:
- LOCATE AND INSTALL EXTERNAL (GLYCOL) PUMP STATION
- CANTSINK PILES SHALL BE INSTALLED AS PER DETAILED PLANS
- INSTALL CONTRACTOR SUPPLIED AND CONSTRUCTED GROUND MOUNT SOLAR PANEL
RACKING SYSTEM.
- MOUNT CONTRACTOR SUPPLIED SOLAR COLLECTORS AND FRAMES TO SOLAR
RACKING SYSTEM
- SOLAR THERMAL COLLECTORS TO BE INSTALLED WITH RESPECT TO MIN 3-FT FIRE
SETBACK FROM FENCE OR GREATER AS REQUIRED BY LOCAL FIRE MARSHAL AND
CALIFORNIA STATE STANDARDS
- CONNECT ALL PLUMBING AS PER CODE AND PLANS (PUMPS, PUMP STATION,
CONTROLS, VALVES, ETC.)
- INSTALL COLLECTOR INTERCONNECTIONS AND MANIFOLDS, COPPER OR CAST IRON
PIPE, OR STAINLESS STEEL FLEX TUBING WITH HIGH-TEMP INSULATION AS SHOWN AND
NOTED ON PLANS
- SOLAR GLYCOL SUPPLY & RETURN SHALL BE INSULATED W/HI TEMP CLOSED FOAM
CELL INSULATION WITH MINIMUM OF R-5.0 VALUE
- ALL EXTERNAL SOLAR GLYCOL SUPPLY & RETURN AND OTHER PIPING SHALL BE
JACKETED
- ALL EXPOSED INSULATION, NON-METAL JACKETING (IF APPLICABLE) AND ANY
EXPOSED NON-METAL PIPING SHALL HAVE UV-PROTECTIVE COATING
- INSTALL PIPE SUPPORTS AT HORIZONTAL AND VERTICAL INTERVALS AS REQUIRED PER
LOCAL AND STATE CODE
- INSTALL ISOLATION VALVES, CHECK VALVES, AND OTHER GLYCOL PLUMBING PER
PLANS AND STATE AND LOCL CODE
- LABEL ALL PIPING WITH FLOW DIRECTION AND IDENTIFY ALL VALVE FUNCTIONS
- INSTALL CONTROL AND SENSOR WIRING PER ELECTRICAL SCHEMATIC (VIA SEPARATE
UNDERGROUND CONDUIT PER PLANS)
- CONNECT OUTDOOR PUMP STATION TO 240VAC SERVICE PANEL IN MAIN BUILDING
(VIA UNDERGROUND CONDUIT PER PLANS)
- FILL GLYCOL SYSTEM WITH AN APPROVED 50% POTABLE GLYCOL SOLUTION AND
CHARGE TO 60PSI AND TEST FOR (NO) LEAKDOWN FOR A MINIMUM OF 48 HOURS
SCOPE POOL WATER LOOP:
- CONNECT SOLAR SUPPLY & RETURN PIPES IN POOL MECHANICAL ROOM ACCORDING
TO PLANS
- CONNECT MAIN POOL FLOW METER TO SOLAR CONTROLLER
- INSTALL SOLAR LOOP FLOW METER AND CONNECT TO CONTROLLER
- INSTALL PENTAIR PS2 PUMP AND ALL VALVES AS PER DWGS DETAILS AND LOCAL AND
STATE CODES
- CONNECT POOL WATER LOOP SERVO VALVE AND PUMP TO SOLAR CONTROLLER
- INSTALL MANUAL SERVICE VALVES ON PUMP AND SOLAR LOOP RETURN
- LABEL ALL PIPING DIRECTION OF FLOW AND IDENTIFY VALVE FUNCTIONS W/LABELS
- INSTALL 3” CPVC PIPE LOOP WITH EXPANSION LOOPS AND SUPPORTS TO SOLAR FIELD
PER PLANS
- ALL ABOVE GROUND POOL WATER PIPING SUPPLY & RETURN PIPES SHALL BE
INSULATED WITH CLOSED FOAM CELL AND JACKETED OR INSULATED WITH MINIMUM
OF R-5.0 VALUE AND JACKETED
- ANY INCIDENTAL EXPOSED PIPE SEGMENTS INSULATION, CPVC VALVES OR OTHER
NON-METAILIC PLUMBING COMPONENTS EXPOSED TO SUNLIGHT SHALL HAVE UVPROTECTIVE COATING/PAINT
- INSTALL CONTROL AND SENSOR WIRING PER ELECTRICAL SCHEMATIC
- CONNECT SOLAR CONTROLER TO 115VAC SERVICE PANEL
- CONNECT SOLAR PS2 POOL PUMP TO EXISTING 240 VAC SERVICE PANEL
- CONNECT SOLAR CONTROLLER TO (COLLEGE SUPPIED ETHERNET) INTERNET
- TEST (3”) POOL WATER LOOP FOR (NO) LEAKS - OBSERVE FOR A MINIMUM OF 48
HOURS
- BACKFILL TRENCH PER PLANS
COMMISSIONING:
- TEST SYSTEM FOR LEAKS AND REPAIR AS NECESSARY
- TEST ALL CONTROL SYSTEMS AND DATA LOG LOOP TEMPERATURES, ENERGY
PRODUCTION, FLOW RATES ETC. FOR PROPER OPERTION AND (WORKING WITH
COMMISSIONING AGENT “VISUALIZE SOLAR”), SET PUMP SPEEDS, VALVE SETTINGS, ETC.
IN PREPARATION FOR AUTOMATED OPERATION AND CSI INSPECTION
- A CONTRACTOR REPRESENTATIVE TO BE PRESENT AT ALL INSPECTIONS, INCLUDING
COUNTY HEALTH AND CSI INSPECTION AND SHALL CORRECT ANY NOTED VIOLATIONS
AND DEFIENCIES
PLUMBING SPECIFICATIONS
Cabrillo Solar 02/01/2015
A. General
a. Provide all circulation piping between the main (pool water) filter loop located in
the pool mechanical room and the solar collector field with associated glycol
loop.
b. Provide all associated balancing valves, servo valves, check valves, service valves,
heat exchangers, pumps, flow meters, temperature sensors and other plumbing
components necessary and associated with the solar pool heating system.
c. Provide all (56) 4’X10’ solar collectors and ground mounting and bracketing
hardware.
d. Provide solar heater control and monitoring system.
e. Provide all other tubing, conduit, or piping associated with the equipment
specified herein. Coordinate with other trades.
B. Pipes
a. Pipe routing as shown and detailed on the contract drawings is diagrammatic
only and is not intended to show minor details or exact locations of piping
systems. Installation is required to be adjusted to accommodate interference
and other project details as encountered. Pipe sizes on plans refer to nominal
inside diameter of the pipe.
b. All rigid PVC piping shall be NSF approved, schedule 80 CPVC. Any connections
between metallic piping and/or equipment and CPVC shall be flanged.
c. All closed loop glycol piping shall be copper, cast iron, stainless steel or exterior
rated stainless steel flex.
d. All exposed exterior piping shall be insulated with Techlite 379 series 1” jacketed
foam pipe insulation or equivalent, outdoor rated, jacketed, with insulation
minimum R5 value.
e. All materials shall be installed by workmen thoroughly skilled in their trades and
all work shall present a neat and professional appearance when complete. The
CONTRACTOR, at no additional expense to the owner, shall replace or correct
any work not judged acceptable by the Architect, Design Supervisor, Owner’s
testing agency or their consultants, or County Health department or CSI
inspectors.
f. No installation shall be made that will provide a cross-connection or
interconnection between a distributing supply for drinking water purposes and
the swimming pool, or between the pool and either: the glycol loop; or a sanitary
or storm water sewer system that will permit a backflow of water or other fluids
between systems.
g. All piping shall be hydrostatically (water) pressure tested for leaks before and
after backfilling to guarantee water tightness. Pneumatic (air) pressure test not
allowed.
h. Provisions shall be made to drain and purge all piping loops in the system.
C. Plumbing Components
a. With the exception of check valves and pump service valves, all valves 3” and
larger shall be butterfly type valves. All flow meters, pumps valves, pressure
relief valves, heat exchangers and other plumbing components shall be suitable
for the chemical and temperatures encountered in their intended
use…….schedule 40 PVC is specifically deemed unacceptable anywhere in the
system.
b. All heat exchangers in the system shall be insulated with R5 insulation or greater
and said insulation shall be protected from contamination or damage from water
or airborn chemicals in their expected operating environment.
D. Solar Collectors
a. Solar collectors shall be rated for DHW (domestic hot water) use, of metal frame
construction with tempered glass glazing and rated to withstand stagnation
temperatures of 300F or greater.
b. Solar collectors shall be SRCC rated and listed on the CSI online calculator
database. No collector may be substituted that results in annual therm
(100,000BTU) production and associated CSI rebate calculation less than cited in
the current rebate reservation (appendix A-1) without the owner’s and design
manager’s specific written approval.
c. Solar collectors shall have a minimum 10 years manufacturer’s warranty
E. Solar Control and Monitoring System
a. Controller/monitoring system shall meet the CSI monitoring requirements
b. Controller/monitoring system shall provide Internet accessible monitoring and
remote login accessible control of system control parameters.
revbk 2/01/2015