Fan Control (Heater Residual) (Fxtq-Ta Models); Interlocked With External Equipment (Fxtq-Ta And Cxtq-Ta Models) - Daikin REYQ-XA Service Manual

Outline of Control (Indoor Unit)

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
∗2. Fan residual operation will continue, even if the indoor unit is turned off with the remote
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.
159
Residual OFF
CFM dictated by the heater's own capacity, or the fan tap CFM determined by other controls.
controller operation button.
• Remote control operation
&
(including thermostat OFF)
• External input: ON (∗1)
• Remote control operation: ON
& (including thermostat OFF)
• External input: ON (∗1)
• Remote control operation: ON
& (including thermostat OFF)
• When the external input
changes from ON to OFF.
• Heater turned OFF from ON
• Heater ON
OR
• Time up (∗2)
Fan operation at preset tap
(Fan tap can be changed by field setting
14 (24)-4.)
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.)
SiUS371901E
Residual ON
Fan (∗1)
ENTRY/
90 sec. timer starts.
Functions and Control