Service Manual

SiUS071735E Control Specification
Functions and Control 28
2. Control Specification
2.1 Mode Hierarchy
Outline The air conditioner control has normal operation mode, forced operation mode, and power
transistor test mode for installation and servicing.
Details Heat Pump Model
Note: Unless specified otherwise, dry operation command is regarded as cooling operation.
Air conditioner control mode
Forced operation mode
Forced cooling operation (for pump down operation)
Power transistor test mode
Normal operation mode
Fan
Cooling (includes drying)
Heating
Heating
Defrosting
Stop (indoor unit: OFF)
Preheating control
Discharging from capacitor
Stop
(R22375)