AirStage AO54FJ, Руководство по обслуживанию

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(1) Initialization
When the power is turned ON.
When the power is OFF after the certain period.
05-07
5-4 ELECTRONIC EXPANSION VALVE CONTROL
(2) Operation Control
When indoor unit stopping
Outdoor unit Condition
EEV Condition
Cooling
Heating
Fully closed
Slightly open
When starting up
(Cooling) Move to the cooling control base pulse.
(Heating) Move to the heating control base pulse in steps.
Automatic operatin control
Automatic PI control is performed based on the indoor unit heat exchanger mid temp and inlet temp.
Room temperature control
The refrigerant flow is controlled in the increments of 0.5 C, so that the indoor temperature is smoothly
controlled based on the difference between the indoor temperature and the setting temperature, and the
indoor temperature curve.
OFF
Fully closed
5-5 DRAIN PUMP OPERATION
(1) When cooling and refrigerant circulation starts, the drain pump starts simultaneously.
(2) The drain pump operates continuously for 3 minutes after the refrigerant circulation stopped.
(3) When the refrigent circulation is stopped by a start of indoor heat exchanger frost provention
operation, the drain pump will turn off in 1 hour after the end of indoor heat exchanger frost
provention operation.
(4) When the water level in the drain pan rises up and then the float switch functions:
Microcomputer stops the refrigerant circulation and indoor fan motor operation.
Drain pump operates continuously for 3 minutes after the float switch is turned off.
(Almost condensing water may be drained)
(5) When the float switch turns ON continuously for 3 minutes, 'FAILURE INDICATION' operates.
(6) When the float switch turns OFF within 3 minutes, the unit starts cooling operation.
1
2
(3) Special Control
Defrosting (at the oil recovery operation)
The similar pulse value of the cooling control pulse.
At Pump-down
Fully open