Installation instruction
When bending the pipes, give the roundness as large as possible, to avoid crashing and flat the pipes.
To connect the pipe, fit the center and use hand to screw the nut, as shown in figure:
If do not fit the center and screw the nut hard, the screw thread may be damaged, which will cause refrigerant leakage.
Pay attention not to let alien matters, such as sand, water get into the pipe.
Joint Nut
Spanner
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Pipe diameter | Fasten torque | |
Liquid pipe 9.52mm | 32.7~39.9 N.m |
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Gas pipe 15.88mm | 62.8~74.5 N.m |
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(3)Connect the connection pipe of outdoor unit
According to the connection method to connect the connection pipe and in/out liquid pipe and gas pipe.
2. Welding method of pipe
(1)The refrigerant pipe should use clean new pipe. When performing work, pay attention to preventing vapor, dust from entering into the pipe.
(2)When loosening and fastening the connection screw nut, do use two hands to handle. If use one hand, it cannot reach the necessary fastening level.
Please perform the fastening of the screw nut according to the specified torque
External diameter of connection pipe (mm) | Installation torque (N.m) | Fastening torque (N.m) |
*9.52 | 24.5 (2.5kgf.m) | 29.4 (3.0kgf.m) |
*15.88 | 49.0 (5.0kgf.m) | 53.9 (5.5kgf.m) |
3. Cut and flaring method
Use pipe cutter to cut the pipe, the burrs must be removed.
After inserting the flarer, perform flared nut.
Flarer |
| Flaring dimensions as follows: | ||
A | Connect pipe | Pipe diameter | Dimension A (mm) | |
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| Liquid pipe | 9.52mm (3/8") | ||
| Gas pipe | 15.88mm (5/8") | ||
Correct |
| Incorr |
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Slant | Broken | Burrs | Uncompleted | Too long |
When connect the accessory thermal insulation material with the thermal insulation material of the onsite connection pipe, do not leave any gap. After finishing installing the thermal insulation material as below Figure shown, then use tape to bind them properly.
When connection, the connecting part |
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should not leave any gap, and the thermal |
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insulation material should be overlapped. |
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Thermal insulation material |
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of onsite connection pipe |
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Thermal insulation material
Thermal insulation material
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