11.2. Pumping down
(Indoor unit)
(Liquid side)
(Outdoor unit)
(Gas side)
3-way
valve
Close
Low
High
Open
Close
3-way
valve
Open
Procedure
1.Confirm that both the 3-way valves are set to open position.
Remove the valve stem caps and confirm that the valve
stems are in the open 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 connect the
charge set to the service ports of the 3-way valves.
Connect the charge hose with the push pin to the
gas side service port.
4.Air purging of the charge hose.
Open the low-pressure valve on the charge set slightly
to purge air from the charge hose.
5.Set the liquid side 3-way valve to the closed position.
●
●
●
●
7.Immediately set gas side 3-way valve to the closed position.
Do this quickly so that the gauge ends up indicating
1 to 3
.
●
●
●
kg/cm G (0.1 to 0.3 Mpa).
8.Use refrigerant reclaiming equipment to collect refrigerant
from indoor unit and pipes.
9.Disconnect the charge set, and mount both the 3-way valve
stem s nuts and the service port caps.
Use torque wrench to tighten the service port caps to
torque of 18N.m.
Be sure to check for gas leakage
10.Disconnect pipes from indoor unit and outdoor unit.
2
’
6.Operate the air conditioner at the cooling cycle and stop it
when the gauge indicates 1 kg/cm G (0.1 Mpa).
If the unit cannot be operated at the cooling mode
operation (weather is rather cold),press the
MODE
button and TEMP down button simultaneously on the
indoor unit to start test operation, so that the unit can
be operated.
2
●
Refrigerant
Reclaming
Equipment
32
CS-C45FFH / CU-C45FFH
Summary of Contents for CS-C45FFH
Page 8: ...8 4 Dimensions Indoor Unit CS C45FFH CU C45FFH 357 23 5X4 1880 16 5 56 Remote Controller ...
Page 9: ...9 Outdoor Unit CS C45FFH CU C45FFH CU C45FFH 900 620 140 40 5 320 ...
Page 43: ...CS C45FFH CS C45FFH CU C45FFH 43 44 37 38 39 40 41 42 14 13 43 ...
Page 45: ...17 Exploded View CS C45FFH CU C45FFH 45 ...
Page 46: ...CS C45FFH CU C45FFH 46 ...