GMV DC Inverter VRF
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4.2.5.7 Fitting pipe between indoor unit and manifold
Manifold should be matched with fitting pipe of indoor unit.
Fig. 4.2.15
Rated capacity of indoor unit
C(kW)
Pipe between indoor branch and IDU
4.3 Installation of the Connection Pipe
4.3.1 Precautions when installing the connection pipe
Note:
Before welding the pipeline sealing cap, please make sure there’s no refrigerant in pipeline.
If welding it directly, it may cause unnecessary property damage or personal injury.
(1) Conform to the following principles during piping connection: Connection pipeline
should be as short as possible.The height difference between indoor and outdoor units
should be as short as possible.Keep number of bends as little as possible. The radius
of curvature should be as large as possible.
(2) Weld the connection pipes between indoor and outdoor unit. Please strictly conform to
the requirements for welding process. Rosin joints and pin holes are not allowable.
(3) When laying the pipes, be careful not to deform them. The radius of bending parts
should be more than 200mm. The pipes can not be repeatedly bent or stretched,
otherwise the material will get harden. Do not bend or stretch the pipe over three times
at the same position.
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