Gree A Series - Selection of Installation Materials

61
No.
Typical Problems
Caused Influences
4
Mis-wiring of power lines
It would damage the electric element
and lead to safety hazards.
5
Mis-wiring of communication lines
It would lead to abnormal
communication.
6
Improper protection to the
communication lines
The unit would fail to run with the
communication fault.
7
Poor insulation for the chilled water
lines
Missed, cracked, unqualified insulation
and insulation with inadequate
thickness would lead to poor heat
exchanging.
8
Unqualified vibration reduction
measures
Unqualified vibration reduction
measures would lead to increased
vibration and noise, or even abnormal
operation.
9
No protective sleeve for the wall-thru
water pipes
Water leak would be led to by friction
between the wall-thru pipe and the
wall.
10
Improper arrangement of equipment
and pipes
Improper arrangement would make the
machine room look messy.
The installer should be qualified and well know special requirements on installation so as for
guaranteeing installation quality. Only trained and passed technicians are allowed for
installation.
Welders, electricians and refrigeration mechanics all should be licensed.
5.2.3 Selection of Installation Materials
Requirements on Materials
Models, specifications and material of pipelines, pipe fittings, and valves of the water system
should comply with the corresponding design codes.
Specifications of the galvanized carbon steel tubes also should comply with the
corresponding design and production codes: evenly galvanized internal and external tube
walls, no rust, no burrs, and no unmatched thread etc. All tubes should have got the
qualification certificates and other necessary quality certificates.
5.2.3.1 Pipelines
Application Type
Water (t＞95℃) lines
Welded steel, seamless steel, galvanized steel
A Series Modular-type Air-cooled (Heat Pump) Chiller