Operating instructions

119
NOTE: If a remote sensor(s) is used, it must be
connected into the P4 (white) connector.
Improper connections can cause
component damage.
ZONE 2 configuration should have Dip switch 5 (ZONE
2) to ON position and all other Dip switches to OFF
position. The cold (freeze) control is NOT used.
The P5 (blue) connector must stay open. The
ambient sensor must be plugged into the P3 (red)
connector on the AC power module. (Refer to
Figure "ZONE 2")
ZONE 2
ZONE 1
FURNACE
2 WIRES
115V AC
REAR AC
TELEPHONE CABLE
COMMUNICATIONS LINE
FURNACE
CIRCUIT
BREAKER
BOX
115V AC
FRONT A/C
DUO-THERM
COMFORT CONTROL
TELEPHONE
CABLE COMMUNI-
CATIONS
LINE
FRONT REMOTE
SENSOR *(OPTIONAL)
*Comfort control may serve as
a room temperature sensor;
or a remote sensor may be
used.
12V DC INPUT
2 WIRES
Typical installation for two
comfort zones with two heat
pumps and one furnace. Two
remote sensors may be used.
REAR REMOTE
SENSOR