Huawei NetCol5000-A050 User Manual page 54

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)
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Pipe Routing
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Issue 04 (2022-12-15)
Do not use the copper pipe or electric control box as a weight-bearing point
when moving the outdoor unit, and keep the fins intact.
Wear protective gloves during installation.
To ensure the optimal operating condition and longest service life, install the
device correctly as required.
If there are multiple outdoor units onsite, it is recommended that a
permanent label be added to each outdoor unit to mark the mapping
between the outdoor units and the indoor units. This helps quickly locate and
rectify outdoor unit faults. It is recommended that a permanent label be
attached or silk-screened at an eye-catching position on the side of the
electric control box of the outdoor unit.
If a concrete base is used, the requirements are as follows:
– The horizontal gradient of the concrete base cannot exceed 5°.
– The concrete base drains water smoothly and there is no accumulated
water around it.
– The strength level of the concrete base must be greater than or equal to
C20.
Avoid bends and ensure that the connection between indoor and outdoor
units is the shortest.
After determining the optimal pipe connections for the indoor and outdoor
units, calculate the number of bends and tees and convert the number into
the equivalent length of straight pipes.
The total length (L) of pipes connecting the indoor unit and outdoor unit
equals to the equivalent length of components plus the length of the straight
pipes connecting the indoor unit and outdoor unit. The maximum pipe length
mentioned in this document is the equivalent length.
You are advised to select the pipes based on the total length of the pipes
connecting the indoor unit and outdoor unit, because different pipe diameters
influence the voltage drop and performance of the cooling system.
Wrap the refrigerant pipes (including hose clamps) with thermal insulation
foam.
Thermal insulation measures should be applied to outdoor water pipes to
prevent drainage blockage or insufficient water supply due to freezing.
When pipes are routed through holes on the unit, seal the holes to prevent air
duct leakage and copper pipe damage. Seal the ends of copper pipes to
prevent foreign matter from entering refrigerant pipes.
Pipes cannot be routed from the bottom on a concrete floor.
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4 System Installation
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