Operation Test; Block Diagram - Vivax ACP-09CH25ZNM Service Manual

INSTALLATION
8

Operation test

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
Heat pump type: Cool
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. Check switch operation: Open the front grille and press the check button. Switch on the power
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.

BLOCK DIAGRAM

Refrigerant Cycle Block Diagram
INDOOR UNIT
Heat
exchanger
(Evaporator)
Shut off
Heat
Capillary tube
2-way valve
Liquid side
Gas side
3-way valve
Accumulator
Shut off
OUTDOOR UNIT
Check valve
Capillary tube
4-way valve
Compressor
11
Heat
exchanger
(Condenser)
Cooling
Heating
Gas leak check point