MCAC-VTSM-2011-09
Installation
Refrigerant Piping Installation
87
7) To ensure even diversion of refrigerant, pay attention to the distance between the branch pipe
subassembly and the horizontal straight pipe.
a. Ensure that the distance between the bending point of copper pipe and the horizontal straight pipe
section of the adjacent branch pipe is larger than or equal to 1m.
b. Ensure that the distance between the horizontal straight pipe sections of the two adjacent branch
pipes is larger than or equal to 1m.
c. Ensure that the distance between the branch pipe and the horizontal straight pipe section used to
connect the indoor unit is larger than or equal to 0. 5m.
3.1.2. Storage and maintain of copper pipe
3.1.2.1. Pipe carriage and storage
1. Avoid the pipe from bending or deforming during the carriage.
2. Seal the openings of the copper pipe with end cover or adhesive tape during the storage.
3. Place the coil upright to avoid compressing deformation due to self weight.
4. Use wooden support to ensure that the copper pipe is higher than the ground, so as to make the pipe
dust-proof and water-proof.
5. Take dust-proof and water-proof measures at both ends of the pipe.
6. Keep the pipes on special bracket or bench at specified place on the construction site.
3.1.2.2. Correct to seal the opening
1. There are two ways for opening sealing:
1) Sealing with cover or adhesive tape (suitable for short-term storage)
2) Sealing welding (suitable for long-term storage)
Caution: The openings of the copper pipe must be sealed at any time during the construction.
● Method of sealing with cover or adhesive tape
