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WIRING DIAGRAM #PrelimWD | PROA180B2A3DEBDBB2B | 230‐3‐60 | SHEET 7 OF 7 | 12/10/19 DWN CHK
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FIELD POWER SUPPLY 208/230/460/575‐3‐60. MINIMUM CIRCUIT AMPACITY AND
MAXIMUM SIZE AND TYPE OF BRANCH‐CIRCUIT SHORT‐CIRCUIT AND GROUND‐FAULT
PROTECTION PER UNIT RATING PLATE. PROVIDE DISCONNECTING MEANS AS REQUIRED.
TYPICAL MOTORS AND COMPRESSORS SHOWN. SEE CONNECTION DIAGRAM ON MOTOR
OR COMPRESSOR FOR ACTUAL WIRING DETAIL.
FUSE NO.
CLASS
VAC
AMPS‐208/230V
AMPS‐460V
XFMR
TIME DELAY
CC
600
3
2
350VA
YES
CC
600
2
1.5
250VA
YES
CC
600
2
1.5
200VA
YES
CC
600
1.5
3/4
150VA
YES
F2, F9, F10
CC
600
1
1
N/A
YES
CC
600
16
16
350VA
YES
CC
600
10
10
250VA
YES
CC
600
10
10
200VA
YES
CC
600
6
6
150VA
YES
CB
FUSE TABLE
F1, F3
2
1
ABBREVIATION
COLOR
BK
BLACK
BL
BLUE
BR
BROWN
G
GREEN
O
ORANGE
PK
PINK
PR
PURPLE
R
RED
W
WHITE
Y
YELLOW
WIRE COLOR LEGEND
NOTE: NUMBER PLACED AFTER DASH
FOLLOWING COLOR CODE INDICATES WIRE
GAGE. EX. ‐ BK‐12 IS A BLACK, 12 AWG WIRE.
NO NUMBER AFTER COLOR CODE INDICATES 18
AWG WIRE. EX. ‐ BK IS A BLACK 18 AWG WIRE.
Wire Size
Maxium Run
18 AWG
50 Feet
16 AWG
75 Feet
14 AWG
100/125 Feet
14 AWG
150/200 Feet
24 Volt Class 2 Minimum Wire Size
ITEM
FUNCTIONAL
DESIGNATION
LINE NUMBER
DESCRIPTION
101
SFC
148
Supply Fan Motor Contactor
101
SFR
148
Supply Fan Motor Relay
102
MSP‐SF
38
Motor Starter Protection‐Supply Fan
103
SF‐VFD
38
Supply Fan‐Variable Frequency Drive
104
CC1
110
Compressor Contactor no. 1
104
CC1A, CC1B
110, 113
Compressor Contactor no. 1A and 1B
105
CC1‐A1, CC1‐A2
#
"CC1" Auxiliary Contact no. 1 and 2
105
CC1A‐A1, CC1A‐A2
#
"CC1A" Auxiliary Contact no. 1 and 2
106
CC1B‐A1
#
"CC1B" Auxiliary Contact no. 1
107
MSP‐CC1
1
Motor Starter Protection‐“CC1”
107
MSP‐CC1A, MSP‐CC1B
1, 6
Motor Starter Protection‐“CC1A, CC1B”
108
CC2
123
Compressor Contactor no. 2
108
CC2A, CC2B
123, 126
Compressor Contactor no. 2A and 2B
109
CC2‐A1, CC2‐A2
#
"CC2" Auxiliary Contact no. 1 and 2
109
CC2A‐A1, CC2A‐A2
#
"CC2A" Auxiliary Contact no. 1 and 2
110
CC2B‐A1
#
"CC2B" Auxiliary Contact no. 1
111
MSP‐CC2
11
Motor Starter Protection‐“CC2”
111
MSP‐CC2A, MSP‐CC2B
11, 16
Motor Starter Protection‐“CC2A, CC2B”
112
DIG1
108
Digital Compressor no. 1 Unloader Solenoid
112
DIG1, DIG2
108, 121
Digital Compressor no. 1 and 2 Unloader Solenoid
113
DR1
91
Defrost Relay no. 1
113
DR1, DR2
91, 99
Defrost Relay no. 1 and 2
114
DTM1
88
Defrost Timer no. 1
114
DTM1, DTM2
88, 96
Defrost Timer no. 1 and 2
115
EFC
152
Exhaust Fan Contactor
115
EFR
152
Exhaust Fan Relay
116
MSP‐EF
46
Motor Starter Protection‐Exhaust Fan
117
EFVFD
46
Exhaust Fan‐Variable Frequency Drive
118
EGB
4
Equipment Grounding Bar
119
F1, F2, F3
59, 60, 61
Fusing‐See Fuse Table on this sheet
120
CB
71
Circuit Breaker‐See Fuse Table on this sheet
121
OFC1
79
Outdoor Fan Contactor no. 1
121
OFC1, OFC2
79, 83
Outdoor Fan Contactor no. 1 and 2
121
MSP‐OFVFD1 & 2
17, 29
MSP. Outdoor Fan VFD no. 1 and 2
122
MSP‐OF1
22
Motor Starter Protection‐Outdoor Fan no. 1
123
MSP‐OF2
30
Motor Starter Protection‐Outdoor Fan no. 2
123
MSP‐OF2
26
Motor Starter Protection‐Outdoor Fan no. 2
124
MSP‐OF3
30
Motor Starter Protection‐Outdoor Fan no. 3
125
MSP‐OF4
34
Motor Starter Protection‐Outdoor Fan no. 4
126
OF1VFD
22, 25
Outdoor Fan Variable Frequency Drive no. 1
126
OF1VFD, OF2VFD
22, 25, 30
Outdoor Fan Variable Frequency Drive no. 1 and 2
128
HARM
Sheet 4
Heating Analog Relay Module
129
MDC1
214
Modulating Discharge‐Line Controller no. 1
129
MDC1, MDC2
214
Modulating Discharge‐Line Controller no. 1 and 2
130
MRC1
202
Modulating Reheat Controller no. 1
130
MRC1, MRC2
202
Modulating Reheat Controller no. 1 and 2
131
PDB
1, 2, 3
Power Distribution Block
132
PM
59, 71
Power/Phase Monitor
133
RHR
156
Reheat Relay
134
RVR
158
Reversing Valve Relay
135
T1
62, 67
Control Transformer no. 1
136
T2
200
Control Transformer no. 2
137
TB1
Sheet 2‐5
Terminal Board no. 1
138
TB2
71
Terminal Board no. 2
139
TB3
204, 216
Terminal Board no. 3
140
TB‐A
Sheet 5
Terminal Board no. ‐A
144
TD1
113
Time Delay no. 1
144
TD1, TD2
113, 126
Time Delay no. 1 and 2
145
BY‐PASS TIMER 1
115
By‐pass Time Delay no. 1
145
BY‐PASS TIMER 1 & 2
115, 128
By‐pass Time Delay no. 1 and 2
146
WMC
463
Wheel Motor Contactor
146
WMR
???
Wheel Motor Relay
147
MSP‐WM
54
Motor Starter Protection‐Wheel Motor
148
WMVFD
54
Wheel Motor Variable Frequency Drive
149
C450
460
Johnson Control C450 (0‐10VDC)
150
WM‐CS
55, 329
Wheel Motor Current Sensor
151
1K Ohm
212, 213
Resistor, 1K Ohms for MDC
152
CR1
112
Compressor Relay no. 1
152
CR1 and CR2
112, 125
Compressor Relay no. 1 and 2
LEGEND ‐ ITEMS INSIDE CONTROL PANEL
# SEE LINE NUMBER TO THE RIGHT OF CONTACTOR COIL ON WIRING DIAGRAM.
ITEM
FUNCTIONAL
DESIGNATION
LINE NUMBER
DESCRIPTION
101
APS
265
Air Pressure Switch (Supply Fan)
102
APS
265, 266
Air Pressure Switch (Supply Fan and Exhaust Fan)
103
BCTL
165
BCTL
104
BOS1
132
Bleed‐Off Solenoid no. 1
105
BOS1, BOS2
132, 134
Bleed‐Off Solenoid no. 1 and 2
106
CCH1
4
Compressor Crankcase Heater No. 1
107
CCH1A, CCH1B
4, 9
Compressor Crankcase Heater No. 1A and 1B
108
CCH2
14
Compressor Crankcase Heater No. 2
109
CCH2A, CCH2B
14, 19
Compressor Crankcase Heater No. 2A and 2B
110
CM1
2
Compressor Motor No. 1
111
CM1A, CM1B
2, 7
Compressor Motor No. 1A and 1B
112
CM2
12
Compressor Motor No. 2
113
CM2A, CM2B
12, 17
Compressor Motor No. 2A and 2B
114
COPM1
110, 181
Compressor Overcurrent Protection Module no. 1
115
COPM2
123, 183
Compressor Overcurrent Protection Module no. 2
116
DPT260
340
Differential Pressure Transmitter 260 (SF)
117
DPT260
340, 342
Differential Pressure Transmitter 260 (SF and EF)
118
DTT1
93
Defrost T’stat No. 1
119
DTT1, DTT2
93, 101
Defrost T’stat No. 1 and 2
120
ECDA
179
Economizer Damper Actuator
121
ECDA
178, 179
Economizer Damper Actuator
122
EFM1
47
Exhaust Fan Motor No. 1
123
FS
71
Fire Stat
124
FZT
266
Freeze Stat
125
HP1
110
High Pressure Switch No. 1
126
HP2
123
High Pressure Switch No. 2
127
LP1
265
Low Pressure Switch No. 1
128
LP2
266
Low Pressure Switch No. 2
129
LSS1A, LSS1B
136, 138
Liquid Sub‐Cooling Solenoid no. 1A and 1 B
130
LSS2A, LSS2B
140, 142
Liquid Sub‐Cooling Solenoid no. 2A and 2B
131
LLS1
144
Liquid Line Solenoid no. 1
132
LLS1, LLS2
144, 146
Liquid Line Solenoid no. 1 and 2
133
OFM1
23
Outdoor Fan Motor No. 1
134
OFM2
31
Outdoor Fan Motor No. 2
135
OFM2
27
Outdoor Fan Motor No. 2
136
OFM3
31
Outdoor Fan Motor No. 3
137
OFM4
35
Outdoor Fan Motor No. 4
138
OFM5
39
Outdoor Fan Motor No. 5
139
OFM6
43
Outdoor Fan Motor No. 6
140
RVS1
73
Reversing Valve No. 1
141
RVS1, RVS2
73, 76
Reversing Valve No. 1 and 2
142
SFM1
39
Supply Fan Motor No. 1
143
WFS
268
Water Flow Switch
144
WM
55
EC Wheel Motor
LEGEND ‐ ITEMS OUTSIDE CONTROL PANEL
# SEE LINE NUMBER TO THE RIGHT OF CONTACTOR COIL ON WIRING DIAGRAM.
FACTORY WIRING
NORMALLY OPEN CONTACTS
FIELD WIRING
NORMALLYCLOSED CONTACTS
EARTH GROUND
IDENTIFIABLE TERMINAL
CHASSIS (PANEL) GROUND
COIL
SYMBOL LEGEND
NON‐IDENTIFIABLE TERMINAL,
OTHER WIRE JUNCTIONS,
INCLUDING SCHEMATIC
Figure 17g: Typical Electrical Wiring Diagram
PR Series Installation, Operation, and Maintenance Manual