Sanyo SAP-KCRV243GJ, Техническое и сервисное руководство

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35
In order to protect the earth’s environment, be sure to perform pump-down to recover refrigerant
gas without releasing it into the atmosphere.
(11) Replace the flare nut on the wide tube service
port and fasten the flare nut securely with an
adjustable wrench or box wrench. Next, mount
the valve cap and tighten it with a torque wrench
(the cap needs to be tightened with the torque of
200 kg-cm). This process is very important to pre-
vent gas from leaking from the system.
(12) Test run the air conditioner . (See page 20.)
(13) While the air conditioner is running, apply liquid
soap to check for any gas leaks around the ser-
vice valves or caps.
(14) If there is no leakage, stop the air conditioner.
(15) Wipe off the soap on the tubing.
This completes air purging with a vacuum pump and
the air conditioner is ready for actual operation.
Pump Down
When relocating or disposing of the A/C, request
this service from the dealer where the unit was pur-
chased, or from an appropriate agent. Perform
pump-down as described below.
What is pump-down?
Pump-down refers to recovering the refrigerant gas
from the refrigerant cycle at the outdoor unit. This
work must be performed during cooling operation.
The refrigerant gas cannot be recovered during
heating operation.
During winter, or if the temperature sensor prevents
cooling operation, perform
*
forced cooling operation.”
Pump-down procedure
(1) Fully close the spindles at the valves on the narrow
tube side of tubes of the indoor unit.
(Refer to Fig. 23.)
Connect the manifold gauge to the charging port at
the valve on the wide tube side of the tube. Purge
the air from the charging hose. (Refer to Fig. 24.)
Forced cooling operation
(The following explanation uses a wall-mounted unit
as the example. Refer to each indoor unit's Installation
Instruction for details)
1. Turn the operation knob to
The ON position.
2. Use the remote control to
start cooling operation.
3. Turn the operation knob
from the ON position to the
TEST RUN position.
* The operation knob differs to
some degree depending on
the model.
(2)
Fig. 22
ON
OFF
DEMO.
TEST
Narrow tube side
Charging port
Close
Fig. 23