37
Installation and Maintenance
Service Manual
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Liquid valve
Gas valve
Refrigerant charging
vent
Nut of refrigerant
Charging vent
Vacuum pump
Piezometer
Valve cap
Lo Hi
Inner hexagon
spanner
Open
Close
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The drain hose
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The water
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The water outlet
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1. Use Vacuum Pump
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1. Check after Installation
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2. Leakage Detection
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8.7 Vacuum Pumping and Leak
Detection
8.8 Check after Installation and Test
Operation
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Note:
2. Test Operation
(1) Preparation of test operation
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