McQuay TGZ 040A User Manual

16 TGZ 040A through TGZ 190A OMM TGZ-1
Field Wiring Diagram
Figure 4, Field Wiring Diagram
FIELD WIRING FOR TGZ
DWG. 330538901 REV.0D (MOD)
KDL 09-04-08
WITH MICROTECH CONTROLLER
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
OPTION
120 VAC
TB1
TB1-20
CHW PUMP RELAY (BY OTHERS)
120 VAC 1.0 AMP MAX
DISCONNECT
(BY OTHERS)
N
FIELD
SUPPLIED
OPTION
10A
FUSE
(BY OTHERS)
CONTROL
CIRCUIT
FUSE
2
1
N
120 VAC
14
11
NOTE: ALL FIELD WIRING TO BE
INSTALLED AS NEC CLASS 1
WIRING SYSTEM WITH CONDUCTOR
RATED 600 VOLTS
SUPPLY
GND
ALARM BELL RELAY
FACTORY SUPPLIED ALARM
FIELD WIRED
ALARM
BELL
OPTION
10
15
CONTROLLER
TB2
ICE MODE SWITCH
(BY OTHERS)
51
52
42
60
40
53
43
55
49
50
ALARM BELL
RELAY
ALARM BELL OPTION
BELL
1 2
COM
NO
AUTO
TIME
CLOCK
OFF
ON
MANUAL
AUTO
OFF
ON
MANUAL
REMOTE STOP
SWITCH
(BY OTHERS)
IF REMOTE STOP
CONTROL IS USED,
REMOVE LEAD 897
FROM TERM. 40 TO 53.
897
4-20MA FOR
LEAVING WATER RESET
(BY OTHERS)
+
-
4-20MA FOR
DEMAND LIMIT
(BY OTHERS)
+
GND
-
33
44
CHW FLOW SWITCH
---MANDATORY–-
(BY OTHERS)
NOR. OPEN PUMP AUX. CONTACTS (OPTIONAL)
41
54
CDW FLOW SWITCH
---MANDATORY–-
(BY OTHERS)
NOR. OPEN PUMP AUX. CONTACTS (OPTIONAL)
N
N
120 VAC
120 VAC
120 VAC
120 VAC
CDW PUMP RELAY (BY OTHERS)
120 VAC 1.0 AMP MAX
TOWER FAN #1 COIL (BY OTHERS)
120 VAC 1.0 AMP MAX
TOWER FAN #2 COIL (BY OTHERS)
120 VAC 1.0 AMP MAX
TB1-12
J15-NO8
TB1-12
J16-NO9
J16-NO10
TB3-90
TB3-91
TB3-92
79
80
N
0-10 VDC
77
78
N
0-10 VDC
COOLING TOWER BYPASS
(BY OTHERS)
COOLING TOWER BYPASS
(BY OTHERS)
TB3

McQuay TGZ 040A Specifications

General

Brand	McQuay
Model	TGZ 040A
Category	Water Heater
Language	English