Operation Flowchart (Ry71 - 140K); Cooling/Program Dry Operation - Daikin Skyair FHC35K Service Manual

Si-71A

2. Operation Flowchart (RY71 - 140K)

2.1

Cooling/Program Dry Operation

Explanation of Function Operation
Cooling/Dry
Four-Way Valve Control
(See Section 5. 2. 1.)
Is safety
NO
device in normal
condition?
YES
Thermostat
ON Judgment
Thermostat OFF
Thermostat ON
Startup Control
(See Section 5. 2. 11.)
Is discharge
YES
thermistor disconnected?
(See Section 5. 2. 7.)
NO
NO
Is thermistor
in normal condition?
YES
YES
Is discharge pipe
temperature high?
NO
To ∗1 To ∗2
Power Switch ON
Initializing of Electronic
Expansion Valve
(See Section 5. 2. 4.)
Start Operation Using
Remote Controller.
Operation Mode Judgment
Heating
Error Indication
cumulative retry total 6?
Simulated Operation
(See Section 5. 2. 10.)

Operation Flowchart (RY71 - 140K)

Emergency Operation
(See Section 5. 2. 2.)
A
B
C
Is
NO
(See Section
5. 2. 5.)
YES
Shutdown Thermostat OFF
Due to Error (See Section 5. 2. 2.)
A B
(SF027)
49