Daikin RXYQ96PYDN Service Manual page 301

Operation Flow Chart
Microcomputer dry operation
Microcomputer
*7
dry display
*8
OFF
Thermostat status
ON
Fan MF :
Operating in L mode
Electronic
20E :
expansion valve
(Option)
Superheated degree control
A
*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.
a b
Suction air temperature
*9
Fan Operation
(Option)
Drain
MP
: OFF
pump kit
Aux.
52H : OFF
electric heater
Humidifier Mu : OFF
No
Swing flap
Yes
Swing flap
*11
Fan MF:
Operating with set air flow rate
Electronic
20E :
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.
286
Fan MF : Operating
in L mode after it stops for 6 min.
Electronic
20E :
expansion valve
Closed
Drain pump kit
: OFF after 5-min.
MP
residual operation
(Option)
Aux.
electric heater
Humidifier
Fan
LL operation
Electronic
expansion valve
*10
Closed
Set wind direction
*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.
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
Is test run
in progress?
*14
(1)
Thermostat status
(2)
(Option)
Aux.
52H 52H
: OFF
electric heater
Mu Mu
: OFF Humidifier
*15
MF : Fan
Operating with set air flow rate
Electronic expansion valve
20E :
Capacity control
A
(3)
-4 -2
Suction air temp.
: OFF
No
*12
Set wind direction
Yes
*13
Yes
(3)
(Option)
Aux.
52H
: OFF : ON
electric heater
Mu
: ON Humidifier : ON
Is
outlet air temperature Yes
drop protection in
progress?
No
MF : Fan MF :
Operating in L mode
20E :
a
(2)
(1)
b
Set temp.
SiUS34-801A_b
DEFROST/HOT START
indicating lamp: ON
(Option)
Aux.
52H
: OFF
electric heater
Mu
Humidifier : OFF
Fan MF :
Stop
Electronic
20E :
expansion valve
Open
Indoor Unit