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Super Match
Connecting method
■ Apply refrigerant oil at half union and are nut.
■ To bend a pipe, give the roundness as large as possible not to crash the pipe.
■ When connecting pipe, hold the pipe center to center then screw nut on by hand, refer to Fig.
■ Be careful not to let sundries, such as sands enter the pipe.
Pipe cutting and aring
■ Be sure to carry out deburring after pipe cutting with a pipe cutter.
■ Insert aring tool to make a are.
Forced fastening without centering may damage the threads and cause a gas leakage.
Pipe dia. Dimension A Fastening torque
Liquid pipe Ø9.52mm (3/8”) 1.0~1.8(mm) 32.7-39.9N.m
Gas pipe Ø19.05mm (3/4”) 1.4~2.2(mm) 97.2-118.6N.m
Correct
Incorrect
Piping connection of indoor unit
1. Arrangement of piping and drainage pipe
■ After opening inlet grill, you will see a control box as shown in the Fig.
Remove the cover before wiring work.
■ Cut away, with a hammer or a saw, the lid for piping according to
piping direction.
■ According to the piping method, connect the piping on indoor unit with
union of connecting pipe.
Arrange the piping as per the wall hole and bind drain hose,
connecting electric cable and piping together with polyethylene tape.
Insert the bound piping, connecting electric cable and drain hose
through wall hole to connect with outdoor unit.
2. Arrangement of drain hose
■ Drain hose shall be placed in under place.
■ There should be a slope when arrange drain hose. Avoid up and down
waves in drain hose.
■ If humidity is high, drain pipe( especially in room and indoor unit ) must
be covered with insulation material.
Piping connection of outdoor unit.
Connect the connecting pipe and inlet / outlet liquid pipe according to the piping method.
Vacuumizing
Discharge the air out of the indoor unit and the refrigerant pipe by vacuumizing.
(1) Fasten all the nuts of the indoor and outdoor pipes to make these parts out of leakage.
(2) Under the condition of the complete close of the indoor and outdoor valve center (both liquid and gas side),
dismount the service valve cap. Vacuumizing through the charge mouth of the service valve.
(3) After vacuumizing, fasten the service valve and dismount the cap of the big and small stop valve, then loosen
the stop valve center completely and fasten the big and small stop valve.
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