Daikin RZQ100B8V3B Service Manual page 123

ESIE05-03
3.2.1 Function Outline in Cooling Mode
Flow chart Cooling/Dry operation
Cooling/Dry
Part 2 – Functional Description
Power supply ON
Initialize motorized valve
Initialize microcomputer
Stopping
Crank case heater control
Preheating operation control
Remote controller
operation judgement
Cooling/Dry
Operation mode
judgement
Heating
Heating
Thermostat ON judgement
Starting control
4-way valve changeover
Normal control
Compressor step control
Motorized valve PI control
PMV control
Low pressure protection control
High pressure protection control
Discharge pipe temperature protection control
Oil recovery Thermostat OFF judgement
Thermostat OFF by < ∆ > Tr
operation starting
judgement
Thermostat OFF by freeze-up
protection
Oil recovery
operation
Oil recovery
operation ending
judgement
B
Outdoor Unit Functional Concept
A
Emergency
Emergency
operation
B
Inverter current protection control
Inverter fin temperature protection control
Overall current protection control
Low outdoor temperature cooling control
Simulated operation
Remote
control
operation OFF
judgement
Pump down residual operation
Restart standby
A
1
2
3
4
5
Malfunction
Standby
stop
judgement
judgement
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