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(4) Air Purging of the Pipings and indoor unit
The air which contains moisture remaining in the is refrigeration cycle may cause a malfunction on the
compressor.
1. Confirm that both the liquid side valve and the gas side valve are set to the closed position.
2. After connecting the piping, check the joints for gas leakage with gas leak detector.
3. Remove the service port nut, and connect the gauge manifold and the vacuum pump to the service port
by the charge hose.
4. Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below-76cmHg.
5. Disconnect the charge hose and fit the nut to the service port.
(Tightening torque: 1.8kg.m)
6. Remove the valve stem nuts, and fully open the stems of the Liquid and Gas side service valves with a
hexagon wrench.
7. Tighten the valve stem nuts of the Liquid and Gas side service valve.
Indoor unit
Outdoor unit
Liquid side
Gas side
OPEN
OPEN
Vacuum pump
Closed
3-way
valve
Closed
3-way
valve
Содержание A2UN186FA0
Страница 104: ... 104 Electronic Control Device 1 Room Type Indoor Unit MAIN P C B DC ASM MAIN P C B AC ASM ...
Страница 105: ... 105 2 Cassette Type Indoor Unit MAIN P C B DC ASM ...
Страница 106: ... 106 3 Art Cool Type Indoor Unit TOP VIEW BOTTOM VIEW ...
Страница 107: ... 107 4 Convertible Type Indoor Unit ...
Страница 108: ... 108 5 Display ASSY Room Type Indoor Unit Convertible Type Indoor Unit Art Cool Type Indoor Unit TOP VIEW BOTTOM VIEW ...
Страница 109: ... 109 6 SUB P W B ASSEMBLY Art Cool Type Indoor Unit TOP VIEW BOTTOM VIEW ...
Страница 110: ... 110 7 Outdoor Unit MAIN P C B ASM V P U N W ...
Страница 111: ... 111 Schematic Diagram 1 Room Type Indoor Unit ...
Страница 113: ... 113 3 Art Cool Type Indoor Unit ...
Страница 114: ... 114 4 Convertible Type Indoor Unit RY 4WAY RY OUTFAN ...
Страница 120: ... 120 354212 249951 268714 266012 352114 263230 352118 330870 158591 3 Cassette Type Indoor Unit AMNN126EA0 AMNN186TEA0 ...
Страница 121: ... 121 346810 130411 359011 152312 135802 135312 2 W0CZZ 137211 267110 352150 352150 130911 140570 268712 146811 ...
Страница 132: ...P No 3828A20097N August 2003 Printed in Korea ...