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1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way
valves are set to the closed position.
2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port..
3) Connect the charge hose of handle hi connection to the vacuum pump.
4) Fully open the handle Lo of the manifold valve.
5) Operate the vacuum pump to evacuate.
6) Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If
the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the
pressure
can’t achieve -0.1Mpa after pumping 50 minutes, please check if there are some leakage points.
Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm
that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).
7) Turn the flare nut of the 3-way valves about 45° counterclockwise for 6 or 7seconds 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. Then remove the charge hose from the 3 way valve.
8) Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve.
(Indoor unit)
(Liquid side)
(Gas side)
Vacuum
pump
Vacuum
pump
Lo
Hi
Handle Hi
Two-way valve
Close
Manifold valve
Compound meter
Pressure
gauge
-0.1MPa
Handle Lo
Charge hose
Charge hose
(Outdoor unit)
Close
Three-way valve
Summary of Contents for 38QUS014DS2 series
Page 1: ...SUPER INVERTER SERIES MULTI TYPE Service Manual 2018...
Page 14: ...11 5 Easy operation 6 Remote control and optional wired control method...
Page 17: ...14 3 3 Console 1 6 D ra in p ip e 1 9 5 H a n g in g a rm 7 0 0 6 0 0 2 1 0...
Page 20: ...17 3 6 Ducted A5...
Page 21: ...18 A6...
Page 25: ...22 4 5 Ceiling Floor Type 4 6 Hi wall...
Page 26: ...23 5 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 2 38QUS018DS2...
Page 27: ...24 38QUS021DS3 38QUS027DS3...
Page 28: ...25 38QUS028DS4 38QUS036DS4...
Page 29: ...26 38QUS042DS5 42QHC007D8S 42QHC009D8S 42QHC012D8S 42QHC018D8S 42QHC024D8S 16022000A83297...
Page 30: ...27 42QTD007D8S 42QTD009D8S 42QTD012D8S 42QTD018D8S 42QTD009DS 42QTD012DS 42QTD018DS 42QTD024DS...
Page 31: ...28 42QSS012DS 42QSS007D8S 42QSS009D8S 42QSS012D8S...
Page 32: ...29 42QSS018DS 42QSS024DS 42QZA009DS 42QZA012D8S 42QZA018DS...
Page 33: ...30 6 Static Pressure A5 Ducted...
Page 50: ...47 13 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 38QUS018DS2 2...
Page 52: ...49 38QUS027DS3 38QUS036DS4...
Page 53: ...50 38QUS042DS5...