Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 67

Outdoor Unit
[Heating operation]
Note: (Refer to outdoor unit item X.X.X) means refer to Outdoor Unit (P. 57 and after) in detailed description of function.
Initialize electronic expansion
valve Initialize microcomputer
Stopping
Crank case heater control
Cooling / Dry
Cooling/Dry
Normal control
Compressor step control (refer to outdoor unit item 2.4.4.1)
Electronic expansion valve PI control
(refer to outdoor unit item 2.4.4.2)
PMV control (refer to outdoor unit item 2.4.4.3)
Low pressure protection control
(refer to outdoor unit item 2.4.5.1)
High pressure protection control
(refer to outdoor unit item 2.4.5.2)
Heating overload control (refer to outdoor unit item 2.4.5.6)
Oil recovery operation Defrosting condition
starting judgement
Defrost operation
Oil recovery operation
(refer to outdoor
unit item 2.4.6.2)
Defrost ending
judgement
Oil recovery operation
ending judgement
Hot start control
B
56
Power supply ON
(refer to outdoor unit item 2.4.2.2)
Remote controller ON
operation Judgement
Emergency
Operation mode
judgement
Heating
Heating
(refer to outdoor
Room thermostat control
unit item 2.4.3.2)
(refer to outdoor unit
Starting control
item 2.4.3.1)
4-way valve changeover
(refer to indoor unit draft
Hot start control
avoidance control)
Thermostat OFF judgement
4-way valve Thermostat OFF by
changeover
(refer to outdoor unit item 2.4.3.2)
Thermostat OFF by outdoor temperature
(refer to outdoor unit item 2.4.6.3)
(refer to outdoor
unit item 4.2.23)
Pump down residual operation
4-way valve
changeover
Restart standby
(refer to indoor unit draft
avoidance control)
B
A
Emergency
operation
(refer to outdoor unit 2.4.7.1
Emergency operation)
B
Discharge pipe temperature protection control
(refer to outdoor unit item 2.4.5.4)
Inverter current protection control (refer to outdoor unit item 2.4.5.7)
Inverter fin temperature protection control (refer to outdoor unit item 2.4.5.7)
Overall current protection control (refer to outdoor unit item 2.4.5.7)
Suction pipe superheat degree protection control
(refer to outdoor unit item 2.4.5.9)
Simulated operation (refer to outdoor unit item 2.4.7.2)
Remote control
operation OFF
Trs
(refer to outdoor unit item 2.4.5.5)
(refer to outdoor unit item 2.4.2.1)
A
Standby
judgement stop judgement
judgement
Function and Operation
SiBE26-701
Malfunction
Malfunction
code
indication
(S2542)