CS-A181KE
2 Pumping down
(Indoor unit)
(Liquid side)(Outdoor unit)
3-way valve
Close
(Gas side)
3-way valve
CLOSE
Open
Refrigerant
ReclaimingLoHi
Equipment
CLOSE
Procedure:
(1) Confirm that both the 3-way valves are set to the(6) Operate the air conditioner at the cooling cycle
2
open position.and stop it when the gauge indicates 0 kg/cmG
lRemove the valve stem caps and confirm that the valve(0 MPa).
stems are in the open position.lIf the unit cannot be operated at the cool condition
lBe sure to use a hexagonal wrench to operate the valve(weather is rather cool), press the Pump Down Switch on
stems.the Indoor unit.
lSo that the unit can be operated.
(2) Operate the unit for 10 to 15 minutes.
(7) Immediately set the gas side 3-way valve to the
(3) Stop operation and wait for 3 minutes, then connectclose position.
the charge set to the service port of the 3-waylDo this quickly so that the gauge ends up indicating 1 to
2
valve.3 kg/cmG (0.1 MPa to 0.3 MPa).
lConnect the charge hose with the push pin to the Gas side
service port.(8) Use refrigerant reclaiming equipment to collect
refrigerant from indoor unit and pipes.
(4) Air purging of the charge hose.
lOpen the low-pressure valve on the charge set slightly to(9) Disconnect the charge set, and mount both the
purge air from the charge hose.3-way valveOs stem nuts and the service port
caps.
(5) Set the Liquid side 3-way valve to the close position.
lUse a torque wrench to tighten the service port cap to a
torque of 18 NYm.
lBe sure to check for gas leakage.
(10) Disconnect pipes from indoor unit and outdoor
unit.
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Untitled-1276/21/00, 10:21 AM
MAC9602008C3 |
ACEC
