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SCHEMATICS
REMOTE THERMOSTAT OPERATION
REMOTE THERMOSTAT OPERATION
COOLING UNIT
COOLING UNIT
W/ELECTRIC HEAT
W/ELECTRIC HEAT
CONNECT
CONNECT
FUNCTION
FUNCTION
R TO:
R TO:
-----
-----
OFF
OFF
G
G
FAN
FAN
COOL
COOL
G, Y/W1
G, Y/W1
G,B,Y/W2
HEAT
HEAT
OR
OR
G, W2
G, W2
1
1
2
2
BR36
3
3
4
4
2 STG HT
VT17
5
5
6
6
2 STG HT
A
A
B
B
VT18
2 STG HT
VT20
2 STG HT
VT19
2 STG HT
ON
ON
NOTES:
NOTES:
1
1
WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING
WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING
TO UNIT MUST BE PROPERLY POLARIZED (FOR 265V) AND GROUNDED.
TO UNIT MUST BE PROPERLY POLARIZED (FOR 265V) AND GROUNDED.
2
2
RIBBED WIRE MUST BE CONNECTED AS SHOWN
RIBBED WIRE MUST BE CONNECTED AS SHOWN
3
3
ON HEAT PUMP MODELS ONLY.
ON HEAT PUMP MODELS ONLY.
4
4
ON UNITS WITH REMOTE WALL MOUNTED TEMPERATURE SENSOR.
ON UNITS WITH REMOTE WALL MOUNTED TEMPERATURE SENSOR.
5
5
ON UNITS WITH FRONT DESK CONTROL SWITCH.
ON UNITS WITH FRONT DESK CONTROL SWITCH.
6
6
BK18 ON LINE 2 WITH FUSE SHOWN CONNECTED FOR 265V. FOR 230V, CONNECTB
BK18 ON LINE 2 WITH FUSE SHOWN CONNECTED FOR 265V. FOR 230V, CONNECTB
POWER CORD TO LINE 2.
POWER CORD TO LINE 2.
7
7
REMOVE FOR 265V APPLICATIONS.
REMOVE FOR 265V APPLICATIONS.
8
8
REMOVE FOR NON-HEAT PUMP APPLICATIONS.
REMOVE FOR NON-HEAT PUMP APPLICATIONS.
9
9
FOR REMOTE OPERATION, SET SWITCH TO REMOTE POSITION
FOR REMOTE OPERATION, SET SWITCH TO REMOTE POSITION
10
10
IF SUPPLY VOLTAGE IS 208V MOVE 240V LEAD TO 208V TAP ON TRANSFORMER.
IF SUPPLY VOLTAGE IS 208V MOVE 240V LEAD TO 208V TAP ON TRANSFORMER.
265V TRANSFORMER IS NOT SHOWN.
265V TRANSFORMER IS NOT SHOWN.
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
64
1ST STAGE
1ST STAGE
ANTICIPATOR
ANTICIPATOR
CURRENT: .1
CURRENT: .1
HEAT PUMP W/AUXILLARY
HEAT PUMP W/AUXILLARY
2ND STAGE
2ND STAGE
ELECTRIC HEAT
ELECTRIC HEAT
ANTICIPATOR
ANTICIPATOR
CURRENT: .2
CURRENT: .2
CONNECT
CONNECT
FUNCTION
FUNCTION
R TO:
R TO:
-----
-----
OFF
OFF
G
G
FAN
FAN
G, Y/W1
G, Y/W1
COOL
COOL
1ST STAGE
1ST STAGE
G,B,Y/W1
G,B,Y/W1
HEAT
HEAT
2ND STAGE
2ND STAGE
G, W
G, W2
HEAT
HEAT
H
H
C
C
YL10
YL10
RD13
RD13
RD33
RD33
S
S
R
R
C
C
COMP
COMP
RIBBED
RIBBED
2
2
WIRE
WIRE
GN
GN
1
1
BK16
ELECTRIC
ELECTRIC
HEATER
HEATER
FUSE
FUSE
6
6
BR35
BR35
BR34
BR34
BK18
BK18
LINE 1
LINE 1
HEATER HEATER LINE 2
HEATER HEATER LINE 2
7
7
C R G W2 Y/ W1 B RS FD RC
C R G W2 Y/ W1 B RS FD RC
OFF
OFF
MASTER
MASTER
SWITCH
SWITCH
REMOTE
4
4
TEMPERATURE
SENSOR
PTC and PTH Standard Unit - Two Stage Heat
(Temperature Sensor and Front Desk Control Added)
F
F
OD
OD
FAN/COMP
FAN/COMP
CAP
CAP
BR14
BR14
WH15
WH15
FAN
FAN
MOTOR
MOTOR
BK16
RD17
VT12
VT12
COMP FAN HIGH FAN LOWR-VALVE
COMP FAN HIGH FAN LOWR-VALVE
8
8
INDOOR
INDOOR
SWITCH
SWITCH
24 VAC
24 VAC
ID TUBE
ID TUBE
9
9
24 VAC
24 VAC
OD TUBE
OD TUBE
REMOTE/STANDARD
REMOTE/STANDARD
OUTDOOR
OUTDOOR
THERMOSTAT
THERMOSTAT
SWITCH
SWITCH
CONTROL
CONTROL
FRONT
FRONT
5
5
DESK
DESK
SWITCH
SWITCH
FLOODBACK
FLOODBACK
PROTECTOR
PROTECTOR
BK40
BK40
BK40
BK40
BK30
BK30
3
3
BK30
BK30
SWITCHOVER
SWITCHOVER
WIRING DIAGRAM
WIRING DIAGRAM
11179901
BK20
BK20
REV
REV
VALVE
VALVE
SOLENOID
SOLENOID
3
3
BK19
BK19
CONTROL
CONTROL
CHASSIS
CHASSIS
GN1
GN1
PANEL
PANEL
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