Gas Furnace Control (Cxtq-Ta Models) - Daikin VRV RXYQ72-384XAYCA Service Manual

SiUS342004EB

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-TA requires the gas furnace combustion heating.
Detail
• Thermostat: ON
Thermostat ON
Heat pump operation
Note(s)
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.
Part 4 Functions and Control
Thermostat OFF
• Hot-water heater signal (from outdoor unit): ON
&
• Compressor is suspended
• Hot-water heater signal (from outdoor unit): OFF
OR
• Compressor is operating
Outline of Control (Indoor Unit)
• Thermostat: OFF
Gas furnace operation
128