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79
Fig. 100 — Wiring Diagram for Units with Inverter Driven Compressor (20+ tons) (cont)
326
WIRING DIAGRAM #62X W/O ERV,VFD COMPWD | 62X420 | Dedicated Outside Air System | Air Source Cooling | 460-3-60 | SHEET 6 OF 7 | 06/08/21 DWN
SRF
CHK
LWF
.
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
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.
SET TIME DELAY PERIOD TO 5-MINUTES.
UPON INITIAL APPLICATION OF POWER TO "TD",
CONTACTOR "CC" IS ENERGIZES AFTER A 5-MINUTE START DELAY. WHEN POWER IS
REMOVED, A LOCKOUT CONDITION AND 5-MINUTE TIME DELAY PERIOD (ADJUSTABLE) IS
INITIATED. DURING THIS PERIOD, CONTACTOR "CC" CANNOT BE ENERGIZED.
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
5
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.
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
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
ITEM
FUNCTIONAL DESIGNATION
LINE
NUMBER
DESCRIPTION
101
CC1-CS
2,363
Compressor #1 - Current Switch
102
CC2
119
Compressor Contactor no. 2
103
CC2-AUX1
#
CC2 - Auxiliary Contact no. 1
104
CC2-CS
12,369
Compressor #2 - Current Switch
105
CHC1
101
Crankcase Heater Contactor #1
106
CHC1-AUX1
#
CHC1 - Auxiliary Contact no. 1
107
CMVFD1
1,92,292
Compressor #1 VFD
108
CR1
100
Compressor Relay #1
109
EF-CS
48,359
Exhaust Fan - Current Switch
110
EFR
149
Exhaust Fan Relay
111
EFVFD1
45,47,282
Exhaust Fan - Variable Frequency Drive #1
112
EGB
4
Equipment Grounding Bar
113
HPR1, HPR2
98, 117
High Pressure Relay #1, #2
114
HR
179,513
Heat Relay
115
MSP-CC1
1
Motor Starter Protecon - CC1
116
MSP-CC2
11
Motor Starter Protecon - CC2
117
MSP-EF1
47
Motor Starter Protecon - Exhaust Motor #1
118
MSP-OF1, MSP-OF2
22,26
Motor Starter Protecon- Outdoor Fan no. 1, no. 2
119
MSP-OF3, MSP-OF4
26,30
Motor Starter Protecon- Outdoor Fan no. 3, no. 4
120
MSP-OF5, MSP-OF6
34,34
Motor Starter Protecon- Outdoor Fan no. 5, no. 6
121
MSP-OFVFD1, MSP-OFVFD2
22,30
Motor Starter Protecon- OFVFD1, OFVFD2
122
MSP-SF1
39
Motor Starter Protecon - Supply Motor #1
123
OFVFD1, OFVFD2
10,22,21,30
Outdoor Fan VFD #1, #2
124
PDB
1,456
Power Distribuon Block
125
PM
59,68,68,71
Power/Phase Monitor
126
RHR
153
Reheat Relay
127
SF-CS
40,361
Supply Fan - Current Switch
128
SFR
146
Supply Fan Motor Relay
129
SFVFD1
31,39,280
Supply Fan - Variable Frequency Drive #1
130
SSR
136
Subcooling relay
131
VRA1, VRA2
15,26
Voltage Regulator Assembly #1, #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
BCTL
179,514
Blower Compartment Thremal Limit
102
BOS1
134
Bleed Off Solenoid #1
103
CCH1
4
Crankcase Heater #1
104
CCH2
14
Crank Case Heater #2
105
CM1
2
Compressor Motor No.1
106
CM2
12
Compressor Motor No.2
107
COPM #1
100,126
Compressor Overload Protecon Module #1
108
COPM #2
119,128
Compressor Overload Protecon Module #2
109
EFM1
48
Exhaust Fan Motor #1
110
HP1
98
High Pressure Switch #1
111
HP2
117
High Pressure Switch #2
112
LP1
365
Low Pressure Switch #1
113
LP2
371
Low Pressure Switch #2
114
LSS1A, LSS1B
138,139
Liquid Sub-Cooling Solenoid no. 1A, 1B
115
LSS2A, LSS2B
140,141
Liquid Sub-Cooling Solenoid no. 2A, 2B
116
MRV1
155
Modulang Reheat Valve #1
117
OADA
187,355
Outside Air Damper Acuator
118
OFM1
23
Outdoor Fan Motor #1
119
OFM2
27
Outdoor Fan Motor #2
120
OFM3
27
Outdoor Fan Motor #3
121
OFM4
31
Outdoor Fan Motor #4
122
OFM5
35
Outdoor Fan Motor #5
123
OFM6
35
Outdoor Fan Motor #6
124
SFM1
40
Supply Fan Motor #1
LEGEND - ITEMS OUTSIDE CONTROL PANEL
8
WRAP WIRE THREE TIMES THRU CURRENT SENSOR IF WIRE IS 14 GAUGE. WRAP WIRE TWO
TIMES THRU CURRENT SENSRO IF WIRE IS 12 GAUGE.