JOHNSON CONTROLS
18
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
CONNECTION DIAGRAM
(UL APPLICATIONS ONLY)
FIGURE 7 -
CONNECTION DIAGRAM (UL)
LD19494a
1 82
56
32
11
95
1 31 9 1 13 12 1 20 19 1 8 7 1
J2
1 30 28 71 70 18 80 2 81
161163162158160159 58 59
1
TB3
J1
1
TB4
1
26
55
45
44
27 42 43
49
50
15A
1C
1G
28
70
18
2C
161
163
162
58 59
16
2
16A
1 2 3 4
5 6 7 8
1
2
3
4
5
6
7
8
J32
P32
316
308
316A
308A
71
80
81
158
160
159
J2
1 J1
1
3 4
2
22
J20
SHLD
GND
J10
J6
J5
J18
+
-
SHLD
GND
+
-
1
J7
J8
1
J9
J19
1
1
1
1
12
24
13
49
50
2
22
11
12
1
1
10
20
11
J22
1
JP24
1
JP23
1
1
JP22
JP21
1
6
7
12
J14
1
1
1
1
JP11
JP9
JP10
JP12
1
JP25
1
J1
F2
F1
F3
F4
1
J3
7
4
-12V
+12V
+24V
1
+12V
1
6
1
-
+
GND
SHLD
+12V
J15
J24
J25
J29
J30
1
1
1
V+ IN
1
IN
2
IN
3
IN5+ IN5-
+5
V
- + GN
D
TB1
1
TB3 J23
1
1
1
1
TB
6T
B5
TB
7
TB
8
J21
1
2
4
3
1
2
49 50
1
2
9
10
JP7
JP8
1
JP
5
1
1
1
SMARC MODULE
SW1
1
ON
303A
317
307A
318
309A
311A
319
315A
308A
316A
SHIELD
BLK
BLK
RED
GN
D
IN6+ IN6-
OU
T
JP
4
JP
2
JP
3
RED
GND
GTX
GND
GRX
DTR1
TXD1
RXD1
DSR1
TB1
1
12 11 14
1 9
19
7
4 5 6 2 3
15
16
24
BLK
WHT
GRN
RED
30
26
27
TO J7-24
TO J7-23
WH
T
23
WH
T
TB10
1
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR. WITH
VSD, VGD OR HGBP
STALL DETECTOR
DETECTOR
031-02418
(OPTIONAL)
MICROBOARD
031-03630
TO
DISPLAY
TO
DISPLAY
TO
KEYPAD
I/0 BOARD
031-01743
J2 PRINTER
& BAS
J12
COM3
J13
MC1
TB2
MC2/MBC
TB4
VGD
SD CARD
SLOT J26
J33
USB
(OPTION)
TO
SC-EQ
BOARD
TO J9
ON LTC
I/O BD.
LEFT SIDE WALL
GND
+12V
BLK
RED
J1
SC-EQ
(OPTIONAL)
SC-AP
MODULE
(OPTIONAL)
SHLD
COM
RX
TX
1
2 4
3
J7
J8
J12
J9
(OPTION)
TO
MICROBD.
J2
1G
TO HEATING CONDENSER WATER FLOW SWITCH,
TB20-1,2 LTC I/O
TO HEATING RECOVERY OR HEAD PRESSURE CONTROL VALVE
TB7-1, TB7-2 MICROBOARD KEYPAD
TO HOT WATER SET POINT OFFSET TB9-3, 4 LTC I/O
TO REMOTE LCHLT SET POINT OFFSET (PWM SIGNAL)1,19
(SEE NOTES 2,7)
TO CHILLED LIQUID PUMP RUN CONTACTS 44,45
(SEE NOTES 2,12,15)
TO REMOTE MODE READY TO START CONTACTS 26,27
(SEE NOTES 2,12,15)
TO RUN CONTACTS 35,36 (SEE NOTE 8)
TO CONDENSER PUMP MOTOR STARTER 150,151
(SEE NOTES 14,15)
TO CHILLED LIQUID FLOW SWITCH 1,12 (SEE NOTES 2,7)
TO SAFETY SHUTDOWN ALARM CONTACTS 42,43
(SEE NOTES 2,12,15)
TO AUXILIARY SAFETY SHUTDOWN 1,31 (SEE NOTES 2,7)
TO REMOTE START/STOP CONTACTS 1,7 (SEE NOTES 2,6,7)
TO REMOTE/LOCAL CYCLING CONTACTS 1,13 (SEE NOTES 2,5,7)
TO MULTI-UNIT SEQUANCE CYCLING 1,9 (SEE NOTES 2,7)
TO CONDENSER LIQUID FLOW SWITCH 1,11 (SEE NOTES 2,7)
TO WARNING ALARM 55,56 (SEE NOTES 2,12,15)
TO CYCLING SHUTDOWN ALARM CONTACTS 40,41
(SEE NOTES 2,12,15)
TO COMPR. MTR, STARTER W/CONTROL SUPPLY 1,3,4,15,24,53,
XFMR, 115V, 50/60 Hz (SEE NOTES 14) L,2 (GROUNDED CONDUCTOR)
LCSSS &
LVVSD ONLY
BLK
GRN
WHT
MVSSS OR MVVSD ONLY
UMMVSSS (BLK,WHT,GRN WIRES ONLY)
RED
TO REMOTE CURRENT LIMIT SET POINT (PWM SIGNAL)1,20
(SEE NOTES 2,7)
10
USED ON Q COMPR. ONLY