Venstar T1045 Owner's Manual download pdf (Page 10)

Sample Wiring Diagrams

4 Wire, 1 Stage Cooling, 1 Stage Heat-Heat Pump with B reversing valve.

Residential Heat Pumps, split systems & package units, with no auxiliary heat.

Page 10

T1045

INSTALLATION INSTRUCTIONS

Common wire is optional in all installations. If a common wire is not

used the thermostat must be powered by two AA alkaline batteries.

These batteries must be replaced (page 6) each year or when the Low

Battery indicator is displayed (page 3).

POWER

REVERSING VALVE

COMPRESSOR

4 Conductor 18 to 22 gauge

unshielded cable from the

thermostat to the equipment.

Common wire optional

FAN

O B G W Y R C

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Venstar T1045 Owner's Manual Page 10