Procedure:
1.
Confirm that both the 2-way and 3-way valves are set to
the opened position.
·
Remove the valve stem caps and confirm that the valve
stems are in the opened 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 port of the 3-way valve.
·
Connect the charge hose with the push pin to the Gas
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 2-way valve to the closed position.
6.
Operate the air conditioner at the cooling cycle and
stop it when the gauge indicates 0 MPa (0 kg/cm G).
If the unit cannot be operated at the cooling condition
(weather is rather cool), press the TEST RUN button so
that the unit can be operated.
7.
Immediately set the 3-way valve to the closed position.
·
Do this quickly so that the gauge ends up indicating 0.1
MPa (1 kg/cm G) to 0.3 MPa (3 kg/cm G)
8.
Use
refrigerant
reclaiming
equipment
to
collect
refrigerant from indoor unit and pipes.
9.
Disconnect the charge set, and mount the 2-way and 3-
way valves stem caps and the service port caps.
·
Use a torque wrench to tighten the service port cap to
a torque of 18 N m
·
Be sure to check for gas leakage.
10.
Disconnect pipes from indoor unit and out-door unit.
11.2. PUMPING DOWN
39
CS-VC70KE / CU-VC70KE / CS-VC90KE / CU-VC90KE / CS-VC120KE / CU-VC120KE
Summary of Contents for CS-VC70KE
Page 4: ...2 Functions 2 1 REMOTE CONTROL 4 CS VC70KE CU VC70KE CS VC90KE CU VC90KE CS VC120KE CU VC120KE...
Page 5: ...2 2 INDOOR UNIT 5 CS VC70KE CU VC70KE CS VC90KE CU VC90KE CS VC120KE CU VC120KE...
Page 6: ...2 3 OUTDOOR UNIT 6 CS VC70KE CU VC70KE CS VC90KE CU VC90KE CS VC120KE CU VC120KE...
Page 48: ...13 Troubleshooting Guide 48 CS VC70KE CU VC70KE CS VC90KE CU VC90KE CS VC120KE CU VC120KE...
Page 52: ...52 CS VC70KE CU VC70KE CS VC90KE CU VC90KE CS VC120KE CU VC120KE...
