Operating instructions

109

4. ONE ROOFTOP HEAT PUMP PLUS ONE GAS

FURNACE

To configure one rooftop heat pump plus one gas

furnace, all Dip switches are OFF. The freeze control

is NOT used. The blue connector must stay open (P5).

The ambient sensor is plugged into the proper connec-

tor (red). 115VAC, 12VDC, two thermostat wires from

the furnace and telephone cable communications line

are properly connected to the heat pump electronic

control box.

FURNACE

2 WIRES

CIRCUIT

BREAKER BOX

12V DC INPUT

2 WIRES

115V AC

DUO-THERM

COMFORT CONTROL

TELEPHONE CABLE

COMMUNICATIONS LINE

Typical installation for one com-

fort zone with rooftop heat pump

and one furnace. Comfort control

may serve as a room temperature

sensor, or a remote sensor may

be used.

NOTE: If a remote sensor is used, it must be plugged

into the P4 (white) connector.

Improper connections can cause

component damage.