Daikin RXYQ96PYDN, Service Manual

Page: 301 / 567

Operation Flow Chart SiUS34-801A_b
286 Indoor Unit
Microcomputer dry operation
Heating Operation
Fan Operation
Microcomputer
dry display
Thermostat status
A
A
A
OFF
Yes
ON
No
Suction air temperature
*7
*8
*9
*10
*11
Restart
prevention operating
in progress?
(4 min.)
Is test run
in progress?
Thermostat status
No
No
*14
*15
(Option)
(Option) (Option) (Option) (Option)
(Option)
Drain
pump kit
: OFF
MP
Aux.
electric heater
: OFF
52H
Humidifier : OFF Mu
Aux.
electric heater
: OFF 52H
Humidifier : ON
Aux.
electric heater
: OFF
Humidifier : OFF
Aux.
electric heater
: ON
Humidifier : ON Mu
52H
Mu
Aux.
electric heater
: OFF 52H
Humidifier : OFF Mu
52H
Mu
(option)
Drain
pump kit
: OFF
MP
*7. Microcomputer dry display
No set temperature and air flow rate of the remote controller are displayed.
*8. Thermostat status
Set temperature when operating the microcomputer dry mechanism.
Fan :
Operating in L mode MF
Fan : Operating
in L mode after it stops for 6 min.
MF
Electronic
expansion valve
Superheated degree control
20E :
Electronic
expansion valve
Drain pump kit
: OFF after 5-min.
residual operation
20E :
MP
Swing flap
Swing flap
Set wind direction
Fan MF:
Operating with set air flow rate
20E :
Yes
Yes
No
No
No
*12
*13
*12
Yes
Yes
Yes
Swing flap?
Is
defrost operation in
progress?
Is hot
starting in progress?
Swing flap
Set wind direction
Fan :
Operating with set air flow rate
MF
Electronic expansion valve
Capacity control 20E :
20E :
20E :
Fan :
LL operation
MF
Fan :
Operating in L mode
MF
Fan :
Stop
MF
b a
-2 -4
Suction air temp.
Set temp.
b
a
(3)
(2)
(1)
(3)
(2)
(1)
Closed
Electronic
expansion valve
Closed
DEFROST/HOT START
indicating lamp: OFF
Electronic
expansion valve
Closed
Electronic
expansion valve
Open
Is
outlet air temperature
drop protection in
progress?
DEFROST/HOT START
indicating lamp: ON
*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.
*13. Hot start
If the condenser inlet temperature exceeds 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 125.6
°
F, hot starting will
be conducted.
*14. Thermostat status
*15. Outlet air temperature drop protection
When the set temperature is below 75.2
°
F or the electronic expansion valve opening is small,
the protection will be activated.