139
The high-pressure gas pipe, suction gas pipe, liquid pipe must be provided with reliable thermal insulation. In the
absence of thermal insulation, liquid leakage may happen.
The outdoor unit is already filled with refrigerant.
To connect the pipes to valve box or remove them from valve box, do use both spanner and torque wrench, as
shown in the Fig.6.
Apply refrigerant oil to outside of the flare. Screw it for 3 to 4 rounds with hands and then tighten it.
Determine the tightening torque. (Excessive tightening may damage the nuts and hence cause leakage)
Check the connecting pipes for gas leakage and then fix the thermal insulation, as shown in the in the Fig.7.
Only use sealing gasket to wrap the part jointing between the gas pipe and thermal insulation.
For pipe cutter and flare tool, please use R410A special tools.
<Notes>
• Please do not let any type of gas other than the specified refrigerant go into the refrigeration system;
• In case of refrigerant leakage during operation, please replace the gas. (Fill the refrigerant at the outdoor unit)
Paste the refrigerant oil here
Torque spanner
Spanner
Pipe joint
Cone nut
Fig.6
Fig.7
Liquid pipe
Gas pipe
Heat insulation (accessory)
Heat insulation (accessory)
(for gas pipe)
(for liquid pipe)
Middle size seal cushion (accessory)
(Use seal cushion to bind the pipe joint)
Select piping material
•
Make sure both the internal surface and external surface of the pipes are intact and are free from harmful
contaminants such as sulphur, oxide, foreign matter, cutting powder, grease and water.
•
Please use the following materials for refrigerant pipe.
Pipe material
Phosphorized copper seamless pipe for air conditioner (TP2)
Model
VP4-450B
Function
High pressure gas pipe
Ø28.58
Suction gas pipe
Ø28.58
Liquid pipe (outdoor side)
Ø15.88
Gas pipe (indoor side)
Ø15.88
Liquid pipe (indoor side)
Ø9.52
Содержание MRV 5-RC AB052MAERA
Страница 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Страница 3: ......
Страница 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Страница 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Страница 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Страница 116: ...113 2 Preparation before installation ...
Страница 130: ...127 2 Dimension 290 67 410 220 567 137 160 189 57 144 109 159 159 212 393 4 22 65 65 65 65 65 44 65 76 4 52 67 156 830 ...
Страница 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Страница 165: ...162 One by four valve box PCB code 0151800466 ...