(1) Pumping down
•
Procedure
1. Confirm that both the gas side and liquid side
valves are set to the open position.
- Remove the valve stem caps and confirm that
the valve stems are in the raised position.
- Be sure to use a hexagonal wrench to operate
the valve stems.
2. Operate the unit for 10 to 15 minutes.
3. Stop operation and wait for 3 minutes, then con-
nect the manifold gauge to the service port of
the gas side valve.
- Connect the hose of the gauge with the push
pin to the service port.
4. Air purging of the charge hose.
- Open the Low-handle valve on the gauge
slightly to air purge from the hose.
5. Set the liquid side valve to the closed position.
6. Operate the air conditioner at the cooling cycle
and stop it when the gauge indicates 1kg/cm
2
g.
7. Immediately set the gas side valve to the closed
position.
- Do this quickly so that the gauge ends up indi-
cating 1kg/cm
2
g.
8. Disconnect the charge set, and mount the liquid
side and gas side valve caps and the service
port nut.
- Use torque wrench to tighten the service port
nut to a torque of 1.8kg.m.(4.2kg.m/5.5kg.m)
- Be sure to check for gas leakage.
9. Apply steps from 1 to 8 to each unit (A-unit, B-
unit) by the same method.
- 47 -
Indoor unit
Outdoor unit
Liquid side
Close
Gas side
2-Way
valve
Open
3-Way
valve
manifold gauge
Hi- handle
(CLOSE)
Low-handle
(CLOSE)
Содержание LM-2422A2L/A3L
Страница 12: ... 12 900 1 225 370 2 3 LM 4822C3L LM 4822A3L ...
Страница 59: ... 59 2 Outdoor 2 1 MAIN P C B ASM LM 2422C2L LM 2422A2L LM 3625C3L A3L LM 3626A3L LM 4822C3L LM 4822A3L ...
Страница 60: ... 60 3 Display Assembly ...
Страница 61: ... 61 Schematic Diagram 1 Indoor 1 1 LM 2422C2L LM 2422A2L LM 3625C3L A3L LM 3626A3L LM 4822C3L LM 4822A3L ...
Страница 62: ... 62 1 2 LM 3620C2L LM 3622A2L LM 3620A2L ...
Страница 63: ... 63 2 Outdoor 2 1 LM 2422C2L LM 2422A2L ...
Страница 64: ... 64 2 2 LM 3625C3L A3L LM 3626A3L ...
Страница 65: ... 65 2 3 LM 4822C3L LM 4822A3L ...
Страница 81: ...P No 3828A20095K January 2005 Printed in Korea ...