architect’s supplemental instructions
DMNS - ECF
ASI #:
project no.:
30044-000-00
date of issuance:
to contractor:
GH Phipps
owner:
project:
47
4/1/13
Denver Museum of Nature and Science
The Work shall be carried out in accordance with the following supplemental instructions, issued in accordance
with the Contract Documents, without change in Contract Sum or Contract Time. Prior to proceeding with the
Work in accordance with these instructions, indicate your acceptance of these instructions for minor change to
the Work as consistent with the Contract Documents and return a copy to the Architect.
description:
escription:
Item #1
Changes to Electrical
Drawings
1. E-402 B2 Enlarged Mechanical Room Detail
a. Supply Fans Circuits revised to be placed on
the emergency system. New circuits
SB2EPPB-2,4,6 and SB2EPPB-8,10,12.
2. E-601 B2 Panel Schedules
a. Supply fans removed from circuits SBMCA1,3,5 and SBMCA-7,9,11. Circuits are now
spaces.
b. Supply fans placed on SB2EPPB-2,4,6 and
SB2EPPB-8,10,12.
c. SB2EPPB main circuit breaker revised to
80A3P circuit breaker. SB2EPPB has the bus
capacity for the supply fans however the main
circuit breaker was undersized after the AHU301 supply fans were placed on SB2EPPB. The
previous MCB size was 50A.The main circuit
breaker is now sized to be 80A due to the
demand is currently 64.7A and DMNS wants
20% spare on all panels.
d. (1) Dedicated 20A1P emergency circuit on
SB2ELA-14 for the BMS control panel located
in the B2 mechanical room.
3. E-602 B1 Panel Schedules
a. (1) Dedicated 20A1P emergency circuit on
SB1ELA-26 for the BMS control panel located
in the B1 mechanical room.
b. Circuit breaker on SB1EPPB-37,39,41 revised
to be a 80A3P circuit breaker due to the
increased demand load on SB2EPPB.
Page 1 of 2
architect’s supplemental instructions
attachments:
ttachments:
issued:
by:
gkkworks
accepted:
Tom Otteson
date:
Click here to enter text.
by:
4/1/13
date:
Click here to enter text.
distribution:
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Owner
Architect
Contractor
Civil
☐
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Landscape
Structural
Mechanical
Electrical
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Page 2 of 2
AIR HANDLING UNIT SCHEDULE, LEVEL B2
NUMBER
TOTAL UNIT
LOCAL
OVERCURRENT
EQUIP.
FANS
VOLTAGE /
NUMBER
OF FANS
VFD HP
FLA (PER TOTAL UNIT
DISCONNEC PROTECTION (CB
TAG
DESCRIPTION
LOCATION
GEN BACKUP (QTY x HP)
PHASE
OF VFD'S
PER VFD
RATING
VFD)
LOAD (KVA)
MCA
MOCP
T
OR FUSE)
FEEDER
CIRCUIT
AHU-301 AIR HANDLING UNIT - SUPPLY FANS
B2 MECH RM
YES - EM
4 x 7-1/2
480/3
2
2
15
22.0
18.29
24.8
38.5
40A/3P CB
SEE ONE-LINE DIAGRAM SB2EPPB-2,4,6 & SB2EPPB-8,10,12
AIR HANDLING UNIT - RETURN FANS
YES - EM
2x5
480/3
2
1
5
7.6
6.32
9.5
19.0
20A/3P CB
SEE ONE-LINE DIAGRAM SB2EPPB-1,3,5 & SB2EPPB-7,9,11
NOTES:
(1) THE MECHANICAL CONTRACTOR SHALL PROVIDE THE REQUIRED VFD(S) FOR THE OPERATION OF THIS PIECE OF EQUIPMENT. THE ELECTRICAL CONTRACTOR SHALL INSTALL THE VFD(S) AND MAKE FINAL CONNECTIONS TO THE MECHANICAL EQUIPMENT.
(2) THE LOCAL DISCONNECT AND OVERCURRENT PROTECTIVE DEVICE FOR THE INDIVIDUAL MOTORS IS INTEGRAL TO THE VFD.
NOTES
(1)(2)
(1)(2)
FEED FROM:
VOLTAGE:
PHASE:
WIRE:
CKT
NO
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
DESCRIPTION
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
CCP-301 (AHU-301)
COILINGCOIL PUMP
/
PCCP-301 (AHU-301)
PRE-COOL COIL PUMP
/
PHCP-301 (AHU-301)
PRE-HEAT COIL PUMP
/
HUM-301-5 (HUMIDIFIER)
/
/
SPACE
SPACE
SPACE
PANEL:
NEUTRAL:
GROUND:
ENCLOSURE:
MOUNTING:
SB1DPB
480/277
3
4
LOAD
VA TYPE
1330
1330
1330
831
831
831
831
831
831
534
534
534
M
M
M
M
M
M
M
M
M
S
S
S
MANUFACTURER:
BUS AMPACITY:
MAIN:
AIC:
CKT BREAKER
CKT BREAKER
P
A
NOTE NOTE A
P
15
3
/
/
/
/
15
3
/
/
/
/
3
20
15
3
/
/
/
/
/
/
/
/
3
15
15
3
/
/
/
/
/
/
/
/
3
15
15
3
/
/
/
/
/
/
/
/
3
15
15
3
/
/
/
/
/
/
/
/
20
1
-
CONNECTED (KVA)
LOAD TYPE
LIGHTING(L)
RECEPTACLE (R)
REC (>10000VA) (R)
HVAC (H)
LARGEST MOTOR (M)
REMAIN MOTOR (M)
CONTINUOUS LOAD (CL)
KITCHEN LOADS (K)
SPECIFIC LOADS (S)
NONCOINCIDENTAL (N)
EXISTINGLOAD (E)
SB2MCA
100%
STANDARD
NEMA 1
SURFACE
A
0.0
0.0
B
0.0
0.0
C
0.0
0.0
3.7
1.3
1.7
0.0
0.0
2.4
0.0
0.0
3.7
1.3
1.7
0.0
0.0
2.4
0.0
0.0
3.7
1.3
1.7
0.0
0.0
2.4
0.0
0.0
TOTAL
0.0
0.0
DEMAND
FACTOR
LOAD
TYPE VA
S
534
S
534
S
534
S
534
S
534
S
534
H
831
H
831
H
831
H
2909
H
2909
H
2909
S
534
S
534
S
534
S
294
S
294
S
294
DEMAND (KVA)
A
B
C TOTAL
1.25
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.50
0.0
0.0
0.0
0.0
11.2
1.00
3.7
3.7
3.7
11.2
4.0
1.25
1.7
1.7
1.7
5.0
5.0
1.00
1.7
1.7
1.7
5.0
0.0
1.25
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
7.3
1.00
2.4
2.4
2.4
7.3
0.0
0.00
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
TOTAL DEMAND (KVA)
9.5
9.5
9.5 28.5
SPARE (KVA) 52.8 52.8 52.8 158.6
TOTAL (A/PH) 34.3 34.3 34.3 34.3
SPARE (A/PH) 190.7 190.7 190.7 190.7
SEE SPECIFICATIONS
225
225 MLO
14,000
DESCRIPTION
CKT
NO
HUM-301-1 (HUMIDIFIER)
2
/
4
/
6
HUM-301-2 (HUMIDIFIER)
8
/
10
/
12
CUH-309 (CABINET UNIT HEATE 14
STAIR 19
16
/
18
UHP-301 (UNITARY HEAT PUMP) 20
MECH ROOM
22
/
24
HUM-301-3 (HUMIDIFIER)
26
/
28
/
30
HUM-301-4 (HUMIDIFIER)
32
/
34
/
36
SPARE
38
SPACE
40
SPACE
42
FEED FROM:
VOLTAGE:
PHASE:
WIRE:
CKT
NO
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
DESCRIPTION
AHU-301 RETURN FANS
VFD-301-R1
/
AHU-301 RETURN FANS
VFD-301-R2
/
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
PANEL:
NEUTRAL:
GROUND:
ENCLOSURE:
MOUNTING:
SB1EPPB
480/277
3
4
LOAD
VA TYPE
2105
M
M
2105
2105
M
2105
M
2105
M
M
2105
MANUFACTURER:
BUS AMPACITY:
MAIN:
AIC:
CKT BREAKER
CKT BREAKER
P
A
NOTE NOTE A
P
3
20
40
3
/
/
/
/
/
/
/
/
3
20
40
3
/
/
/
/
/
/
/
/
20
1
20
1
20
1
-
CONNECTED (KVA)
LOAD TYPE
A
LIGHTING(L) 0.0
RECEPTACLE (R) 0.0
REC (>10000VA) (R)
HVAC (H) 0.0
LARGEST MOTOR (M) 6.1
REMAIN MOTOR (M) 10.3
CONTINUOUS LOAD (CL) 0.0
KITCHEN LOADS (K) 0.0
SPECIFIC LOADS (S) 0.0
NONCOINCIDENTAL (N) 0.0
EXISTINGLOAD (E) 0.0
SB2EPPB
100%
STANDARD
NEMA 1
SURFACE
B
0.0
0.0
C
0.0
0.0
0.0
6.1
10.3
0.0
0.0
0.0
0.0
0.0
0.0
6.1
10.3
0.0
0.0
0.0
0.0
0.0
TOTAL
0.0
0.0
DEMAND
FACTOR
LOAD
TYPE VA
M
6094
M
6094
M
6094
M
6094
M
6094
M
6094
DEMAND (KVA)
A
B
C TOTAL
1.25
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.50
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
18.3
1.25
7.6
7.6
7.6
22.9
30.9
1.00
10.3 10.3 10.3 30.9
0.0
1.25
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.0
0.00
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
TOTAL DEMAND (KVA) 17.9 17.9 17.9 53.8
SPARE (KVA)
4.2
4.2
4.2 12.7
TOTAL (A/PH) 64.7 64.7 64.7 64.7
SPARE (A/PH) 15.3 15.3 15.3 15.3
SEE SPECIFICATIONS
125
80A MCB
14,000
DESCRIPTION
AHU-301 SUPPLY FANS
VFD-301-S1
/
AHU-301 SUPPLY FANS
VFD-301-S2
/
SPARE
SPARE
SPARE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
CKT
NO
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
FEED FROM:
VOLTAGE:
PHASE:
WIRE:
CKT
NO
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
PANEL:
NEUTRAL:
GROUND:
ENCLOSURE:
MOUNTING:
SB1ELA
208/120
3
4
DESCRIPTION
LOAD
VA TYPE
B2 VESDA PANEL
400
S
B2 FA STROBE PANEL
400
S
B2 DOOR HOLD OPENS NOT FA 200
S
B2 F/S DAMPERS
200
S
SPARE
SPARE
B2 FLOW, TAMP SENS
200
S
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
MANUFACTURER:
BUS AMPACITY:
MAIN:
AIC:
CKT BREAKER
CKT BREAKER
P
A
NOTE NOTE A
P
1
20
20
3
/
/
1
20
1
20
/
/
1
20
20
3
1
30
/
/
1
30
/
/
1
20
20
1
-
CONNECTED (KVA)
LOAD TYPE
LIGHTING(L)
RECEPTACLE (R)
REC (>10000VA) (R)
HVAC (H)
LARGEST MOTOR (M)
REMAIN MOTOR (M)
CONTINUOUS LOAD (CL)
KITCHEN LOADS (K)
SPECIFIC LOADS (S)
NONCOINCIDENTAL (N)
EXISTINGLOAD (E)
SB2ELA
100%
STANDARD
NEMA 1
SURFACE
A
0.0
0.0
B
0.0
0.0
C
0.0
0.0
0.0
0.5
0.4
0.0
0.0
1.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.2
0.0
0.0
TOTAL
0.0
0.0
DEMAND
FACTOR
1.25
1.00
0.50
0.0
1.00
1.25
0.5
0.4
1.00
0.0
1.25
0.0
1.00
1.00
1.9
0.0
0.00
0.0
1.00
TOTAL DEMAND (KVA)
SPARE (KVA)
TOTAL (A/PH)
SPARE (A/PH)
LOAD
TYPE VA
M
373
0
373
0
373
M
481
0
481
0
481
S
500
DEMAND (KVA)
A
0.0
0.0
0.0
0.0
0.6
0.4
0.0
0.0
1.3
0.0
0.0
2.3
3.7
19.0
31.0
B
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.4
0.0
0.0
0.4
5.6
3.3
46.7
C TOTAL
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.6
0.0
0.4
0.0
0.0
0.0
0.0
0.2
1.9
0.0
0.0
0.0
0.0
0.2
2.9
5.8 15.1
1.7
8.0
48.3 42.0
SEE SPECIFICATIONS
125
50A MCB
10,000
DESCRIPTION
MD-301 OH DOOR
/
/
MD-302 OH DOOR
/
/
MECH CONTROLS
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
CKT
NO
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
FEED FROM:
VOLTAGE:
PHASE:
WIRE:
CKT
NO
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
DESCRIPTION
FACP
B1 FA STROBE
B1 FA STROBE
B1 VESDA PANEL
B1 DOOR HOLD NOT FA
SPARE
B1 F/S DAMPERS
B1 EM POWER RM REC
B1 FLOW,TAMP SWITCH
ELEVATOR SHUNT TRIP
ELEVATOR CAB LTG
ELEVATOR CONTROLLER PWR
ELEVATOR RECEPT
SPARE
SPARE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
PANEL: SB1ELA
30KVA XFMR SB1XEA
NEUTRAL: 100%
208/120
GROUND: STANDARD
3
ENCLOSURE: NEMA 1
4
MOUNTING: SURFACE
LOAD
VA TYPE
500
S
400
S
400
S
300
S
200
S
500
S
180
R
200
S
100
S
MANUFACTURER:
BUS AMPACITY:
MAIN:
AIC:
CKT BREAKER
CKT BREAKER
P
A
NOTE NOTE
A
P
1
20
20
1
1
20
20
1
1
20
20
1
1
20
30
1
1
20
30
1
1
30
20
1
1
20
20
1
1
20
20
1
1
20
20
1
1
20
20
3
1
20
/
/
/
/
1
20
1
20
20
1
1
20
20
1
1
20
20
1
50
3
/
/
/
/
50
3
/
/
/
/
SEE SPECIFICATIONS
125
100A MCB
10,000
LOAD
DESCRIPTION
TYPE VA
S
400 1ST FA STROBE
S
400 1ST VESDA PANEL
SPARE
SPARE
SPARE
S
500 1ST F/S DAMPERS
S
200 1ST FLOW, TAMP SWITCH
SPARE
SPARE
M
481 MD-303 OH DOOR
M
481 /
M
481 /
S
500 MECH CONTROLS
SPARE
SPARE
PANEL S2ELA
/
/
PANEL SB2ELA
/
/
LOAD SUMMARY
LOAD
PANEL S2ELA
PANEL SB2ELA
PHASE
A
B
C
A
B
C
L
-
R
-
H
-
CONNECTED (KVA)
LOAD TYPE
LIGHTING (L)
RECEPTACLE (R)
REC (>10000VA) (R)
HVAC (H)
LARGEST MOTOR (M)
REMAIN MOTOR (M)
CONTINUOUS LOAD (CL)
KITCHEN LOADS (K)
SPECIFIC LOADS (S)
NONCOINCIDENTAL (N)
EXISTING LOAD (E)
A
0.0
0.0
B
0.0
0.2
C
0.0
0.0
0.0
0.8
2.1
0.0
0.0
5.4
0.0
0.0
0.0
0.8
1.3
0.0
0.0
3.0
0.0
0.0
0.0
0.8
1.3
0.0
0.0
1.7
0.0
0.0
TOTAL
0.0
0.2
M
1.6
1.6
1.6
0.9
-
KVA
MLRG CM
0.8
0.8
0.8
0.5
-
DEMAND
FACTOR
1.25
1.00
0.50
0.0
1.00
2.4
1.25
4.7
1.00
0.0
1.25
0.0
1.00
10.1
1.00
0.0
0.00
0.0
1.00
TOTAL DEMAND (KVA)
SPARE (KVA)
TOTAL (A/PH)
SPARE (A/PH)
K
-
S
1.6
1.6
0.4
1.3
0.4
0.2
N
-
DEMAND (KVA)
A
0.0
0.0
0.0
0.0
1.0
2.1
0.0
0.0
5.4
0.0
0.0
8.5
1.5
71.0
12.3
B
0.0
0.2
0.0
0.0
1.0
1.3
0.0
0.0
3.0
0.0
0.0
5.4
4.6
45.4
37.9
C TOTAL
0.0
0.0
0.0
0.2
0.0
0.0
0.0
0.0
1.0
3.0
1.3
4.7
0.0
0.0
0.0
0.0
1.7
10.1
0.0
0.0
0.0
0.0
4.0 17.9
6.0 12.1
33.0 49.8
50.2 33.5
E
-
CKT
NO
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
FEED FROM:
VOLTAGE:
PHASE:
WIRE:
CKT
NO
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
PANEL:
NEUTRAL:
GROUND:
ENCLOSURE:
MOUNTING:
SB1DPB
480/277
3
4
DESCRIPTION
LOAD
VA TYPE
PASSENGER ELEVATOR
16897 M
/
16897 M
/
16897 M
M
UHP-310 (UNITARY HEAT PUMP 2299
PASSENGER ELEV CLOSET
2299
M
/
2299
M
SPF-301
1330
M
/
1330
M
/
1330
M
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
PANEL SB2EPPB
/
/
SB1EPPB
100%
STANDARD
NEMA 1
SURFACE
MANUFACTURER:
BUS AMPACITY:
MAIN:
AIC:
CKT BREAKER
CKT BREAKER
P
A
NOTE NOTE A
P
3
150
/
/
/
/
3
15
/
/
/
/
3
15
/
/
/
/
3
80
100
3
/
/
/
/
/
/
/
/
SEE SPECIFICATIONS
225
200A MCB
35,000
LOAD
DESCRIPTION
TYPE VA
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
SPACE
PANEL SPEBBA
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LOAD SUMMARY
LOAD
PANEL SPEPPB
PANEL SB2EPPB
PHASE
L
-
A
B
C
A
B
C
R
-
H
-
CONNECTED (KVA)
LOAD TYPE
A
LIGHTING(L) 0.0
RECEPTACLE (R) 0.0
REC (>10000VA) (R)
HVAC (H) 0.0
LARGEST MOTOR (M) 16.9
REMAIN MOTOR (M) 26.1
CONTINUOUS LOAD (CL) 0.0
KITCHEN LOADS (K) 0.0
SPECIFIC LOADS (S) 0.4
NONCOINCIDENTAL (N) 0.0
EXISTINGLOAD (E) 0.0
B
0.0
0.0
C
0.0
0.0
0.0
16.9
26.1
0.0
0.0
0.0
0.0
0.0
0.0
16.9
26.1
0.0
0.0
0.0
0.0
0.0
TOTAL
0.0
0.0
KVA
M MLRG CM
6.1
2.1
6.1
2.1
6.1
2.1
16.4
6.1
16.4
6.1
16.4
6.1
DEMAND
FACTOR
K
-
S
0.4
-
N
-
DEMAND (KVA)
A
B
C TOTAL
1.25
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.50
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
50.7
1.25
21.1 21.1 21.1 63.4
78.3
1.00
26.1 26.1 26.1 78.3
0.0
1.25
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
0.4
1.00
0.4
0.0
0.0
0.4
0.0
0.00
0.0
0.0
0.0
0.0
0.0
1.00
0.0
0.0
0.0
0.0
TOTAL DEMAND (KVA) 47.6 47.2 47.2 142.1
SPARE (KVA)
7.8
8.2
8.2 24.2
TOTAL (A/PH) 172.0 170.5 170.5 170.9
SPARE (A/PH) 28.0 29.5 29.5 29.1
E
-
CKT
NO
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42