user manual

34 Multi type Air Conditioner

Test Running

1. Check that all tubing and wiring have been properly connected.

2. Check that the gas and liquid side service valves are fully open.

Prepare remote control

Remove the battery cover by pulling it according to the

arrow direction.

Insert new batteries making sure that the (+) and (–) of

battery are installed correctly.

Reattach the cover by pushing it back into position.

• Use 2 AAA(1.5volt) batteries. Do not use rechargeable

batteries.

• Remove the batteries from the remote control if the sys-

tem is not going to be used for a long time.

Evaluation of the performance

Operate all indoor units for 15~20 minutes, then check

the system refrigerant charge:

1.Measure the pressure of one of the gas side service

valves.

2. Measure the temperature of the intake and discharge

of air.

3. Ensure the difference between the intake temperature

and the discharge is more than 8°C(14.4°F).

4. For reference, the gas side pressure of optimum condi-

tion is as below.(Cooling)

If the actual pressure are higher than shown, the

system is most likely over-charged, and charge should be

removed. If the actual pressure are lower than shown, the sys-

tem is most likely undercharged, and charge should be added.

NOTICE

Discharge

temperature

Discharge air

Intake temperature

Bolt

Tubing connection

R-410A 35°C (95°F) 8.5~9.5kg/cm

G(120~135 P.S.I.G.)

Outside ambient

TEMP.

Refrigerant

The pressure of the gas side

service valve.

Important:

❏ Individual zones should be all in the same

operation mode (Heating or Cooling mode)