TM 5-3895-374-24-1
ELECTRICAL
WIRING-CONTROL CIRCUIT
Five (5) wires should be run from thermostat subbase to
the 24V terminal board in unit Use 18 gauge copper
color coded thermostat wiring
Thermostat Wiring:
a) Cooling Only refer to parts list for order No
Connect (R), (Y and (G) terminals on thermostat, to (R),
(Y) and (G) terminals on unit terminal board
b) Cooling/Heating: refer to parts list for order No
(1-stage cooling and 1-stage heating thermostat).
1 Connect (R), (Y), (G) and (W,) terminals on
thermostat, to (R), (Y), (G), and (W,) terminals on unit
terminal board
2 Jumper (W,) and (W2) on unit terminal board
c) Cooling/Heating refer to parts list for order No (1-stage
cooling and 2-stage heating thermostat).
Connect (R), (Y), (G), (W,) and (W2) terminals on
thermostat to corresponding (R), (Y), (G), (W,) and (W2)
terminals on unit terminal board
(page 3-489)
