Daikin RXSQ24TAVJU Service Manual page 75

SiUS331708EA
∗4. The control of auxiliary electric heater connected to FXTQ-TA models differ from this flowchart.
∗5. If the evaporator inlet temperature is kept at not more than –5°C (23°F) for a period of
∗6. Thermostat status
∗7. The FXFQ series have the drain pump as standard equipment.
∗8. Program dry display
∗9. Thermostat status
∗10. Fan operation
∗11. Set wind direction
∗12. Fan
∗13. Wind direction
∗14. Hot start
∗15. Thermostat status
∗16. Outlet air temperature drop protection
∗17. Hu indicates the Humidifier connected to the wiring modification adaptor.
∗18. Only for CXTQ-TA.
Functions and Control
For details, refer to Heater Control (FXTQ-TA Models) on page 79.
cumulative 10 min. or not more than –1°C (30.2°F) for a cumulative period of 40 min., freeze-
up prevention operation will be conducted. If the evaporator inlet temperature is kept at not
less than 7°C (44.6°F) for a consecutive period of 10 min., the freeze-up prevention operation
will be reset.
Set temperature
ON
OFF
a b
No set temperature and airflow rate of the remote controller are displayed.
Set temperature when operating the program dry mechanism.
a b
Suction air temperature
By setting the remote controller to Fan, the fan will operate with thermostat OFF in set
temperature control operation mode.
According to wind direction instruction from the remote controller, the wind direction is set to
100% horizontal while in heating operation.
According to fan speed instruction from the remote controller, the fan is put into operation in LL
mode while in heating operation.
When the heating thermostat turns OFF, the wind direction will be set to 100% horizontal.
If the condenser inlet temperature exceeds 34°C (93.2°F) at the time of starting operation or
after the completion of defrost operation, or until 3 minutes pass or Tc is above 52°C
(125.6°F), hot starting will be conducted.
When the set temperature is below 24°C (75.2°F) or the electronic expansion valve opening is
small, the protection will be activated.
It is not related to the Humidifier terminals on the PCB of FXTQ-TA or CXTQ-TA.
Refer to Gas Furnace Control (CXTQ-TA Models) on page 82 for details.
a = b = 1˚C (1.8˚F) or 0.5˚C (0.9˚F)
The values a and b depend on the field setting 12(22)-2.
(3)
(2)
b
–4˚C (24.8˚F) –2˚C (28.4˚F)
Set temp.
Suction air temp.
Outline of Control (Indoor Unit)
a
(1)
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