Table of Contents
SiUS341802E
Program dry operation
Program
∗7
dry display
∗8
OFF
Thermostat status
ON
Fan
MF
:
Operating in L mode
Electronic
YE :
expansion valve
(Option)
Superheated degree control
A
∗
7. Program dry display
No set temperature and airflow rate of the remote controller are displayed.
∗
8. Thermostat status
Set temperature when operating the program dry mechanism.
a
b
Suction air temperature
∗9
Fan Operation
(Option)
Drain
MP
: OFF
pump kit
Aux.
∗16
EH
: OFF
electric heater
Humidifier
Hu
: OFF
No
Swing flap
Yes
Swing flap
∗11
Fan
MF
:
Operating with set airflow rate
Electronic
YE :
expansion valve
Closed
A
∗9. Fan operation
By setting the remote controller to Fan, the fan
will operate with thermostat OFF in set
temperature control operation mode.
∗10. Set wind direction
According to wind direction instruction from the
remote controller, the wind direction is set to
100% horizontal while in heating operation.
∗11. Fan
According to fan speed instruction from the
remote controller, the fan is put into operation
in LL mode while in heating operation.
∗
12. Wind direction
When the heating thermostat turns OFF,
the wind direction will be set to 100%
horizontal.
Functions and Control
Fan
: Operating
MF
in L mode after it stops for 6 min.
Electronic
YE :
expansion valve
Closed
Drain pump kit
: OFF after 5-min.
MP
residual operation
(Option)
∗16
Aux.
electric heater
Humidifier
Fan
∗10
LL operation
Set wind direction
Electronic
expansion valve
Closed
∗
13. Hot start
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.
∗
14. Thermostat status
∗15. Outlet air temperature drop protection
When the set temperature is below 24°C (75.2°F) or the electronic expansion valve opening is
small, the protection will be activated.
∗16. The control of auxiliary electric heater connected to FXTQ-TA models differ from this flowchart.
For details, refer to "Heater Control (FXTQ-TA Models)" on page 85.
Heating Operation
(option)
Drain
MP
pump kit
Swing flap?
∗12
Yes
Swing flap
Is
defrost operation in
progress?
No
Is hot
starting in progress?
No
DEFROST/HOT START
indicating lamp: OFF
Restart
Yes
prevention operating
in progress?
(4 min.)
No
Yes
Is test run
in progress?
No
∗14
(1)
Thermostat status
(2)
(Option)
∗16
Aux.
EH
EH
: OFF
electric heater
Hu
: OFF
Humidifier
Hu
∗15
MF
:
Fan
Operating with set airflow rate
YE :
Electronic expansion valve
Capacity control
A
(3)
–4˚C (24.8˚F)
–2˚C (28.4˚F)
Suction air temp.
Outline of Control (Indoor Unit)
: OFF
No
∗12
Set wind direction
Yes
∗13
Yes
(3)
(Option)
∗16
∗16
Aux.
EH
: OFF
: ON
electric heater
: ON
Humidifier
Hu
: ON
Is
outlet air
Yes
temperature drop protection
in progress?
No
MF
:
Fan
MF
:
Operating in L mode
YE :
a
(2)
(1)
b
Set temp.
DEFROST/HOT START
indicating lamp: ON
(Option)
Aux.
EH
: OFF
electric heater
Humidifier
Hu
: OFF
Fan
MF
:
Stop
Electronic
YE :
expansion valve
Open
68
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