Electrolux EXC09JEIWI, Installation Manual

Page: 35 / 254

35 ENGLISH
• Make sure the refrigerant added into
the air conditioner is liquid form in any
case.
• Do not try to open the valve further
when it hits against the stopper.
• Securely tighten the valve stem cap
with a spanner or the like.
• Valve stem cap tightening torque (See
Tightening torque table in previous).
• Refer to Fig.55 for refrigerant system
indication.
Fig.55
Fig.56
When Using the Vacuum Pump (For
method of using a manifold valve, refer to
its operation manual.)
1. Completely tighten the flare nuts, A,
B, C, D, connect the manifold valve
charge hose to a charge port of the
lowpressure valve on the gas pipe
side.
2. Connect the charge hose connection
to the vacuum pump.
3. Fully open the handle Lo of the
manifold valve.
4.
Operate the vacuum pump to
evacuate. After starting evacuation,
slightly loose theflare nut of the Lo
valve on the gas pipe side and check
that the air is entering (Operation
noise of the vacuum pump changes
and a compound meter indicates 0
instead of minus)
5. After the evacuation is complete, fully
close the handle Lo of the manifold
valve and stop the operation of the
vacuum pump. Make evacuation
for 15 minutes or more and check
that the compound meter indicates
-76cmHg (-1x105Pa).
6. Turn the stem of the packed valve
B about 45° counterclockwise for
6~7 seconds after the gas coming
out, then tighten the flare nut again.
Make sure the pressure display in
the pressure indicator is a little higher
than the atmosphere pressure.
7. Remove the charge hose from the
Low pressure charge hose.
8. Fully open the packed valve stems B
and A.
9. Securely tighten the cap of the
packed valve.
Fig.57
7.2 Safety and leakage check
Electrical safety check
Perform the electric safe check after
completing installation:
1.
Insulated resistance The insulated
resistance must be more than 2M.
Outdoor
unit
A
B
Refrigerant
Indoor
unit
Gas side
Liquid side
Packed valve Half union
Flare nut
Stopper
Cap
Valve stem
Valve body
Manifold valve
Compound meter Pressure gauge
-76cmHg
Handle Lo
Charge hose
Handle Hi
Charge hose
Vacuum pump
Low pressure valve