Daikin REYQ-XA, Service Manual

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Outline of Control (Indoor Unit) SiUS371901E
159 Functions and Control
9.15 Fan Control (Heater Residual) (FXTQ-TA Models)
Outline
If the indoor heater turned OFF from ON during heating operation, the fan will keep operating for
further period of time in order to cool the heater.
Detail
∗
1. When the heater is ON, the airflow rate of the fan will be whichever is the largest between the
CFM dictated by the heater's own capacity, or the fan tap CFM determined by other controls.
∗
2. Fan residual operation will continue, even if the indoor unit is turned off with the remote
controller operation button.
9.16 Interlocked with External Equipment (FXTQ-TA and CXTQ-
TA Models)
9.16.1 Air Purifier (UV lamp)
When an air purifier is connected onsite, the fan is operated with the airflow rate set of the remote
controller or with the H tap.
∗
1. External input ON is an input signal to the X1M-AIR CLEANER terminal on the PCB.
9.16.2 Humidifier
When a humidifier is connected onsite, the fan operates with the airflow rate set of the remote
controller or with the H tap.
∗
1. External input ON is an input signal to the X1M-HUMIDIFIER terminal on the PCB.
Note: This control is not applicable to the humidifier connected to the wiring adaptor, but to the humidifier
connected to HUMIDIFIER on the X1M terminal of the indoor unit PCB.
•
Heater turned OFF from ON
OR
•
Heater ON
•
Time up (
∗
2)
Residual OFF
Residual ON
Fan (
∗
1)
ENTRY/
90 sec. timer starts.
&
Fan operation at preset tap
(Fan tap can be changed by field setting
14 (24)-4.)
•
Remote control operation
(including thermostat OFF)
•
External input: ON (
∗
1)
&
&
•
Remote control operation: ON
(including thermostat OFF)
•
When the external input
changes from ON to OFF.
•
Remote control operation: ON
(including thermostat OFF)
•
External input: ON (
∗
1)
Fan operation at preset tap
(Fan tap can be changed by field setting
14 (24)-4.)
Fan residual operation for 30 seconds
(Fan tap can be changed by field setting
14 (24)-4.)