Specifications

73
PTC and PTH - C Models
SCHEMATICS
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
1ST STAGE
ANTICIPATOR
CURRENT: .1
2ND STAGE
ANTICIPATOR
CURRENT: .1
2 RIBBED WIRE MUST BE CONNECTED AS SHOWN
NOTES :
4 ON UNITS WITH FRONT DESK CONTROL SWITCH.
GN1
CONTROL
PANEL
CHASSIS
WIRE LEGEND
HIGH VOLTAGE
(FACTORY)
HIGH VOLTAGE
(FACTORY OR FIELD)
LOW VOLTAGE
(FACTORY OR FIELD)
WIRING DIAGRAM
20319701
1 WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED (FOR 265V) AND GROUNDED.
3 ON HEAT PUMP MODELS ONLY.
5 BK18 ON LINE 2 WITH FUSE SHOWN CONNECTED FOR 265V. FOR 230V, CONNECT POWER CORD TO LINE 2.
6 CONNECTED TO APPROPRIATE TERMINAL AT FACTORY.
HEAT PUMP W/AUXILIARY
ELECTRIC HEAT
CONNECT
R TO:
-----
G, Y/W1
G,B,Y/W1
G, W2
FUNCTION
OFF
COOL
1ST STAGE
HEAT
2ND STAGE
HEAT
COOLING UNIT
W/ELECTRIC HEAT
CONNECT
R TO:
G, Y/W1
G, W2
OR
G,B,Y/W1
FUNCTION
COOL
OFF
-----
REMOTE THERMOSTAT OPERATION
HEAT
G
FA N
G
FA N
*
* F OR A HEAT PUMP
THERMOSTAT USED
ON A STRAIGHT
COOL UNIT
R
C
S
RD13
YL10
FCH
RIBBED
WIR E
GN
2
REV
VALVE
SOLENOID
BK19
3
BR14
WH15
COMP
OD
FA N/COMP
CAP
BK20
1
FA N
MOTOR
LINE 1
HEATER HEATER LINE 2 COMP FAN HIGH FAN LOW R-VALVE
BK18
5
VT12
TERMINAL
BLOCK
RD14
(PV)
BK16
RD17
RD33
USE COPPER
CONDUCTORS ONLY
230V265V
6
FRONT
DESK
SWITCH
4
RMT/STD
THER MOSTAT
CONTROL
ON / OFF
MASTER
SWITCH
EH IN LS TF1 C R
GL W2 B GH
AUXIL IARY REMOTE THERMOSTAT
FUSE
ON / AUTO
FAN
CYCLE
ALL OFF
C
B
A
D
P6
BLUE
P5
RED
P3
BLACK
OUTDOOR
COIL
INDOOR
COIL
INDOOR
AIR
8
Y/W1
FD2
FD1 TF2
ELECTRIC
HEATER
3
7 FOR REMOTE OPERATION, SET SWITCH TO RMT POSITION
WARNING