Panasonic CS-C45FFH, Руководство по обслуживанию

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(Indoor unit)
(Liquid side)
(Outdoor unit)
(Gas side)
3-way
valve
Open
Low High
Close
Open
Vacuum pump
3-way
valve
Close
1.Connect a charging hose with a push pin to the Low side and High side of a charging set and the service ports of 3-way valves.
Be sure to connect the end of the charging hose with the push pin to service port.
2.Connect the centre hose of the charging set to a vacuum pump with check valve, or vacuum pump and vacuum pump adaptor.
3.Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 cmHg(0MPa) to
-76cmHg(-0.1MPa).Then evacuate the air approximately 1hour.
4.Close the valve of the charging set and turn off the vacuum pump. Make sure that the needle in the gauge does not move after
approximately five minutes.
5.Disconnect the charging hose from the vacuum pump and the service port of the 3-way valves.
6.Tighten the service port caps of the 3-way valves at a torque of 18 N.m with a torque wrench.
7.Remove the valve caps of both the 3-way valves. Position both of the valves to
“ OPEN ” position using a hexagonal wrench
(4mm).
8.Mount valve caps onto two valves.
Be sure to check for gas leakage.
Evacuation of Indoor Unit And Piping
Fig. 17
10.4
Note:
BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGERANT GAS LEAKAGE.
Caution
If the gauge needle does not move from 0 cmHg(0MPa) to -76 cmHg(-0.1MPa) in step 3 above, take the following measure:
If the leak stops when the piping connections are tightened further, continue working from step 3.
If the leak does not stop when the connections are retightened, repair the location of leak.
Do not release refrigerant during piping work for installation or reinstallation. Take care of the liquid refrigerant, it may cause
frostbite.
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CS-C45FFH / CU-C45FFH CS-C45FFH / CU-C45FFH
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES IN
THE FOLLOWING PROCEDURE.