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Startup control
Oil return operation
YES
YES
NO
NO
Error/Standby
Normal operation
Indoor unit thermostat ON
NO
YES
Defrost control
Indoor unit thermostat ON
Error/Standby
Error/Standby
Operation in
stop control
Pressure
equalization
prior to startup
Indoor unit stop or
thermostat OFF
Cooling or heating
operation
Oil return starting
conditions are met.
Defrost starting
conditions are met.
Operation
mode change
Indoor unit stop or
thermostat OFF
Indoor unit stop or
thermostat OFF
Error/
Standby
Pump down
residual
operation
Restart standby
(Compressor stop)
• Cooling startup
control
• Heating startup
control
• Compressor PI control
• Electronic expansion
valve PI control
• Protection control
Summary of Contents for SkyAir RZQ-TA Series
Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811E...
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