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APPENDIX A — WIRING SCHEMATICS (cont)
CHILLER CONTROL SCHEMATIC (cont)
(RED)
(BLK)
(BRN) (BRN)
(WHT)
T2
24VAC
(GRN)
(RED)
(RED)
(BLU)
(BLU)
(BLK)
SOLENOID
HGBP
(YEL)
(YEL)
(BLK)
(BLK)
2123
3C
42
(WHT)
(BLK)
3
6
5
4
2
1
HOT GAS BYPASS
(FR #7 & 8 HT EXCH)
115V CONTROL ONLY
(RED)
ACTUATOR
HGBP
COM
OPEN
CLOSE
(GRN)
(BLK)
(BLU)
3C
3C
42
65
(WHT)
230V WIRING MODIFICATION
COMP'R OIL HEATER
(BLK)
(BLK)
(WHT)
(WHT)
(BLK)
13
11
12
1C
1C
1C
(FR #1 - 6 HT EXCH)
HOT GAS BYPASS
(BLU)
(BLK)
(GRN)
(RED)
(RED)
(BLU)
(BLU)
(BLK)
SOLENOID
HGBP
(YEL)
(YEL)
(BLK)
(BLK)
3C
SHOWN WIRED FOR 115V
230V WIRING MODIFICATION
42
(WHT)
(RED)
(BLK)(BLK)
(WHT)
WHT
)THW()TH
W(
COMP'R OIL PUMP MOTOR
WINDING HIGH TEMPERATURE
WHT
(WHT)
(BLK)
(BLK)
COMP'R DISCH
HIGH PRESS
(CLR)
(RED)
(SHIELD)
(BLK)
A
C
17
51
50
43
B
(BRN)
(RED)
(ORN)
(BLK)
COMP'R OIL HEATER
(WHT)
(BLK)
(WHT)
(WHT)
(BLK)
(BLK)
23
21
22
13
11
12
1C
1C
1C
115V
230V
COM
TO TB-G **
(RED)
(YEL)
(BLK)
RED
YEL
BLK
23
21
22
2C
2C
2C
13
11
12
VOLTAGE
PER JOB
REQM'T
M
COMP'R OIL
PUMP MOTOR
(1-1/2 HP)
TO VFD
T1
24VAC
(RED)
(BLK)
(BRN) (BRN)
(WHT)
(RED) (GRY)
(RED)
(GRY)
(WHT)
(WHT)
(BLK)
(BLK)
(BRN)
(YEL)
(RED)
(CLR)
(BLK)
(RED)
(BLK)
(BRN) (BRN)
(WHT)
T3
24VAC
(RED) (GRY)
UPC
1
2
a19-1947
LEGEND
* Standard on LF2 drive; optional on machines equipped with
other VFDs.
CB Circuit Breater
CCM Chiller Control Module
HGBP Hot Gas Bypass
ICVC International Chiller Visual Controller
RHS Relative Humidity Sensor
UPC Universal Protocol Controller
VFD Variable Frequency Drive
Denotes Control Panel Terminal
Denotes Oil Pump Terminal
Denotes Power Panel Terminal
**
Denotes Motor Starter Panel Conn
Denotes Component Terminal
Wire Splice
Denotes Conductor male/Female Connector
Option Wiring