Operation test
8
Before test operation, wiring safety inspection must be carried out carefully again.
1. Emergency switch operation: Every press of emergency switch, the
air conditioner runs as in the following order:
Cool only type: Cool
Shut off
Heat pump type: Cool
Heat
Shut off
2. Remote controller operation: If the indoor unit sounds like Di, Di when pressing I/O button,
that indicates the air conditioner is under the operation of remote controller. After that, press
every button to test their functions.
3.
operation: Open the front grille and press the check button. Switch on the power
Check switch
source and then the operation test is activated. If the indicator lamps light up at first and then
go out in succession or the LED window of the indoor unit illuminates at first and then goes out,
the system is under normal operation. If one of the indicator lamps is flashing at all times, or
failure codes are displayed on the LED window of the indoor unit, the system has something
wrong and please check malfunction immediately.
Check valve
Capillary tube
Capillary tube
Liquid side
2-way valve
Gas side
3-way valve
Accumulator
Compressor
4-way valve
Cross fan
Heat
exchanger
(Condenser)
Propeller fan
Heat
exchanger
(Evaporator)
INDOOR UNIT
OUTDOOR UNIT
Cooling
Heating
Gas leak check point
BLOCK DIAGRAM
Refrigerant Cycle Block Diagram
11
INSTALLATION
