Control Specification SiBE121123_A
91 Function and Control
4. Control Specification
4.1 Mode Hierarchy
Outline Air conditioner control has normal operation mode, forced operation mode, and power transistor
test mode for installation and servicing.
Detail
Note:
Unless specified otherwise, a dry operation command is regarded as cooling operation and
a radiant operation command is regarded as heating operation.
Indoor fan operation cannot be made in multiple indoor units. (A forced fan command is
made during forced cooling operation.)
Determine Operation Mode
The system judges the operation mode command which is set by each room in accordance with
the procedure, and determines the operation mode of the system.
The following procedure is taken when the operation modes conflict with each other.
∗1. The system follows the operation mode which is set first. (First-push, first-set)
∗2. For the rooms where the different operation mode is set, standby mode is activated. (The
operation lamp blinks.)
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 operation
Discharging from capacitor
Stop
(R17533)
Command from
the first room
Command from
the second room
Operation of the
first room
Operation of the
second room
Cooling Heating Cooling Standby
Cooling Fan Cooling Fan
Heating Cooling Heating Standby
Heating Fan Heating Standby
FanCoolingFanCooling
Fan Heating Standby Heating
To Next Page
Loading...
Need help?
General