Unit installation

IOMM ACZ/AGZ-3 ACZ / AGZ-BM 49
Figure 25, ACZ-B, Typical Field Wiring Diagram
DWG. 330423201 REV.0C
TO COMPRESSOR(S)
AND FAN MOTORS
DISCONNECT
(BY OTHERS)
3 PHASE
POWER
120VAC
CONTROL POWER
GND LUG
UNIT MAIN
TERMINAL BLOCK
FUSED CONTROL
CIRCUIT TRANSFORMER
120 VAC
TB1
TB1-20
OPTIONAL DX EVAP FAN RELAY
(BY OTHERS)
120 VAC 1.0 AMP MAX
DISCONNECT
(BY OTHERS)
N
FIELD SUPPLIED
OPTION
10A
FUSE
(BY OTHERS)
CONTROL
CIRCUIT
FUSE
120 VAC
GND
A
LARM BELL RELAY
FACTORY SUPPLIED ALARM
FIELD WIRED
ALARM BELL
OPTION
CONTROLLER
34
32
2
1
N
120 VAC
33
35
NOTE: ALL FIELD WIRING TO BE
INSTALLED AS NEC CLASS 1
WIRING SYSTEM WITH CONDUCTOR
RATED 600 VOLTS
TB2
TB3
103
104
STAGE 2
STAGE 1
101
102
105
106
STAGE 3
107
108
STAGE 4
109
110
STAGE 5
111
112
STAGE 6
4-20MA FOR
DEMAND LIMIT
(BY OTHERS)
-
+
IF REMOTE STOP
CONTROL IS USED,
REMOVE LEAD 585
FROM TERM. 52 TO 72.
585
A
UTO
REMOTE
STOP
SWITCH
(BY OTHERS)
TIME
CLOCK
52
72
71
70
50
OFF
ON
MANUAL
A
LARM BELL
RELAY
A
LARM BELL OPTION
BELL
12
COM NO
43
83
FLOW SWITCH, BY OTHERS
AIR - OPTIONAL
WATER - MANDATORY
NOR. OPEN PUMP/FAN AUX.
CONTACTS (OPTIONAL)
44
61
GND
N
93
91
N
97
96
24 VAC
24 VAC
LIQUID LINE #1 SOLENOID
24 VAC 1.5 AMP MAX.
HOT GAS BYPASS #2 SOLENOID
24 VAC 1.0 AMP MAX.
N
97
95
24 VAC
HOT GAS BYPASS #1 SOLENOID
24 VAC 1.0 AMP MAX.
N
93
92
24 VAC
LIQUID LINE #2 SOLENOID
24 VAC 1.5 AMP MAX.
LESS EVAPORATOR ONLY
JUMPER IF FLOW SWITCH
INPUT NOT USED