English
11
Not recommendable but in case of emergency
You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may
follow the installation method mentioned below.
After the work is finished, make sure to check that there is no gas leak.
When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque
suddenly increases. From that position, further tighten the flare nut the angle shown below:
Unless followed the tightening instruction (it is loose tightening), it will lead to the refrigerant leakage (slow
leak) and the device malfunction (it does not sufficiently cool or heat).
•
Make absolutely sure to execute thermal insulation works on the pipe-connecting section after checking
gas leakage by thoroughly studying the following figure and using the attached heat insulating materials for
fitting (8) and (9). (Fasten both ends with the clamps (4).)
(Refer to Fig. 17)
•
Wrap the sealing pad (11) only around the insulation for the joints on the gas piping side.
(Refer to Fig. 17)
•
Wind round the insulation for fitting (8) and (9) in the flare nut of the liquid and gas pipe joints by the sealing
pad-Medium 1 (11) and 2 (12).
•
Be sure to turn up the seams of the insulation for fitting (8) and (9).
•
At brazing of the refrigerant piping, complete the nitrogen substitution first, or braze with charging the nitro-
gen into the refrigerant pipe (Refer to Fig. 4), lastly connect the flare nut to the indoor unit (Refer to Fig. 3).
Pipe size
Further tightening angle
Recommended arm length of tool
φ
9.5 (3/8”)
60 to 90 degrees
Approx. 200mm
φ
15.9 (5/8”)
30 to 60 degrees
Approx. 300mm
Содержание SkyAir GQI-Eco FCQG100EVEB
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