Gas Furnace Control (Cxtq-Ta Models) - Daikin REYQ-XA Service Manual

Outline of Control (Indoor Unit)

9.13 Gas Furnace Control (CXTQ-TA Models)

Outline When conditions for gas furnace operation are established, the system transits into gas furnace
operation, CXTQ requires the gas furnace combustion heating.
Detail
Thermostat ON
Note: The airflow rate during gas furnace operation depends on the intensity of combustion heating and
therefore may be different from the airflow setting displayed on the remote controller.
157
• Thermostat: ON
Heat pump operation
• Hot-water heater signal (from outdoor unit): OFF
OR
• Compressor is operating
Thermostat OFF
• Hot-water heater signal (from outdoor unit): ON
&
• Compressor is suspended
SiUS371901E
• Thermostat: OFF
Gas furnace operation
Functions and Control