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6.4 Installation for the first time
Air and moisture in the refrigerant system have undesirable effects as below:
●
Pressure in the system rises.
●
Operating current rises.
●
Cooling efficiency drops.
●
Moisture in the refrigerant circuit may freeze and block capillary tubing.
●
Water may lead to corrosion of parts in the refrigerant system.
Therefore, the indoor units and the pipes between indoor and outdoor units must be leak tested
and evacuated to remove gas and moisture from the system.
Gas leak check (Soap water method):
Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit
connections by a soft brush to check for leakage of the connecting points of the piping. If bubbles
come out, the pipes have leakage.
1. Air purging with vacuum pump
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
(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 xpower blue II 38KCL109313G
Page 1: ...C10 INVERTER SERIES Service Manual 2012 CSI A1 1206 ...
Page 12: ...10 5 Wiring Diagram 5 1 Indoor Unit 42KCL109313G 42KCL112313G 42KCL118313G ...
Page 13: ...11 42KCL124313G ...
Page 14: ...12 5 2 Outdoor Unit 38KCL109313G 38KCL112313G 38KCL118313G ...
Page 15: ...13 38KCL124313G ...
Page 36: ...34 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution ...
Page 37: ...35 9 2 2 Indoor unit and outdoor unit communication protection error diagnosis and solution ...
Page 40: ...38 9 2 7 High temperature protection of compressor top diagnosis and solution ...