Daikin VRV EMERION REYQ-AATJA Service Manual page 186

Outline of Control (Indoor Unit)
B
(Option)
4
Aux.
EH : OFF
electric heater
Humidifier Hu : OFF
MF
Fan :
LL operation
Electronic YE :
expansion valve
Closed
Note(s)
1. If any error occurs, the relevant error code will be displayed according to the error code display
of the remote controller.
2. When the auxiliary electric heater turns ON, the fan will stop after it conducts residual operation.
3. When the drain pump kit turns ON, the drain pump kit will stop after it conducts residual
operation for a period of 5 min.
4. The control of auxiliary electric heater connected to FXTQ-TA, FXTQ-TB models differ from this
flowchart.
For details, refer to Heater Control (FXTQ-TA, FXTQ-TB Models) on page 197.
5. If the evaporator inlet temperature is kept at not more than –5°C (23°F) for a period of
179
Heating Operation
Drain
MP : OFF
pump kit
No
Swing flap?
13
13
Yes
Set wind direction
Swing flap
Yes
Is test run in
progress?
No
18
Are
conditions for gas
Yes
furnace operation
established?
No
Is
Yes
defrost operation in
progress?
No
14
Yes
Is hot starting in
progress?
No
Remote controller does
not display STANDBY
Restart
Yes
prevention operating
in progress?
(4 min.)
No
15
(1)
(3)
Thermostat
status
(2)
(Option) (Option)
4 4
Aux. Aux.
EH : OFF
electric heater electric heater
Humidifier Hu : ON Humidifier
Is
16
outlet air
temperature drop protection
in progress?
No
Fan MF :
Operating with set airflow rate
Electronic expansion valve YE :
Capacity control
A
Fan
MF
Depends on the intensity
of gas combustion.
Remote controller
displays STANDBY
(Option)
4
Aux.
EH : ON EH : OFF
electric heater
Hu : ON Humidifier Hu : OFF
Yes
Fan MF : Fan MF :
Operating in L mode Stop
Electronic
YE :
expansion valve
Open
SiUS372201EB
Is
defrost
Yes
operation in
progress?
No
(Option)
4
Aux.
EH : OFF
electric heater
Humidifier Hu : OFF
B
Electronic
YE
:
expansion valve
Opened
Electronic
YE
:
expansion valve
Closed
Part 4 Functions and Control