Daikin VRV III REYQ8PY1, Service Manual

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Si37-701 Outline of Control (Indoor Unit)
Function 133
6. Outline of Control (Indoor Unit)
6.1 Operation Flow Chart
Start
Heating Operation Fan Operation Cooling Operation
Turn ON
power supply
Cooling Operation
LED in remote
controller turns ON
Drain
pump kit
Aux. electric
heater
Detect louver lock
( )
Run or Stop?
RUN indicating lamp: OFF
RUN indicating lamp: Blink
Malfunction code: Displayed
RUN indicating lamp: OFF
Malfunction mode display: Reset
Is
Restart prevention
operation in progress?
(5 min.)
Is
freeze prevention
operation in progress?
Is
test run
in progress?
Thermostat status
Fan or Temp.
control?
Cooling or
Heating?
Swing flap
Dew
prevention condition?
Swing flap Set wind direction
Dew prevention position
Cassette type: P1
Ceiling suspended type: P0
Microcomputer dry
ON/OFF
Microcomputer dry display:
Reset
Microcomputer dry operation
Fan:
Operating with set air flow rate
A
A
A
Stop
Run
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
ON
OFF
No
No
No
Cyclic operation with
RUN/STOP pushbutton
*1
Fan
Temp. control
Heating
Cooling
*2 Fan : Stop
Louver : Stop
*3
*6
*5
*4
(Option)
(Option)
(Option)
(Option)
(Option)
(Option)
OFF
ON
MF
MF
: OFF MP
Drain pump kit
: OFF after 5-min.
residual operation
MP
Drain pump kit
: OFF after 5-min.
residual operation
MP
Drain pump kit
:ON MP
Drain pump kit
: ON MP
: Closed 20E
Electronic expansion valve
: Capacity control 20E
Electronic expansion valve
: Closed 20E
MA
: OFF
52H
Aux. electric
heater
: OFF 52H
Humidifier : OFF
Mu
Humidifier : OFF Mu
OFF
ON
a b
Set temperature
Suction air temperature
a=b=1
(a=b=0.5 is only available for the FXCQ, FXFQ, FXHQ, and FXKQ series.)
20E
Initialize electronic
expansion valve
The previous settings of air
flow rate, wind direction, and
temperature are displayed.
Is the
safety device
activated?
Is the RUN
indicating lamp
blinking?
Press the RESET
RUN/STOP
pushbutton.
Electronic
expansion valve
Thermostat-ON-
operation signal to
outdoor unit: Output
Thermostat-ON-
operation signal to
outdoor unit: Output
*1. If any malfunction occurs, the relevant malfunction code will be displayed according to the malfunction
code display of the remote controller.
*2. When the aux. electric heater turns ON, the fan will stop after it conducts residual operation for 1 min.
*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. If the evaporator inlet temperature is kept at not more than -5
°
C for a period of cumulative 10 min. or
not more than -1
°
C for a cumulative period of 40 min., frost prevention operation will be conducted. If
the evaporator inlet temperature is kept at not less than 7
°
C for a consecutive period of 10 min., the
frost prevention operation will be reset.
*5. Thermostat status
*6. The FXCQ, FXFQ, FXKQ, and FXSQ series have the drain pump as standard equipment.
RUN indicating lamp: ON
Air flow rate display: Displayed
Wind direction display: Displayed
Temp. setting display: Displayed