Toshiba RAV-GV1601AT8P-E Service Manual page 35

6-8-3. Pump down process
1. Turn off the Air Conditioner system.
2. Connect the charge hose from the manifold valve to
the service port of the packed valve at gas side.
3. Turn on the Air Conditioner system in cooling
operation more than 10 minutes.
4. Check the operating pressure of the system should
be normal value. (Ref. with product specification)
5. Release the valve rod cap of both service valves.
6. Use the Hexagon wrench to turning the valve rod of
Liquid side fully close.
(*Make sure no entering air into the system)
7. Continue operate Air Conditioner system until and the
gauge of manifold dropped into the range
of 0.5 - 0 kgf/cm2.
8. Use the Hexagon wrench to turning the valve rod of
Gas side fully close. And turn off the Air Conditioner
system immediately thereafter.
9. Remove the gauge manifold from the service port of
the packed valve.
10. Securely tighten the valve rod cap to the both service
valves.
CAUTION
Should be check the compressor operating condition
while pumping down process. It must not any abnormal
sound, more vibration. It is abnormal condition appears
and must turn off the Air Conditioner immediately.
6-8-4. Labeling
• Equipment shall be labeled stating that it has been
de-commissioned and emptied of refrigerant.
• The label shall be dated and signed.
• Ensure that are labels on the equipment stating the equipment
contains flammable refrigerant.
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