Huawei NetCol8000-A Series User Manual page 87

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
Pipes Connections Verification
Table 3-15 Pipe checklist
Check
Item
Pipes
Electrical Connections Verification
Table 3-16 Cable connection checklist
Check
Item
Electrical
check
Issue 12 (2020-10-28)
Expected Result
● Ports are connected properly. The pipelines have oil trap, inverted
traps, gradients (of the refrigerant pipes), and supports.
● Confirm the diameter of corresponding pipes is correct.
● The direction of the arrow on the ball valves of the connecting
pipe for indoor unit and outdoor unit is parallel to the direction
of the copper pipes. The ball valve is open.
● Keep pressure by filling nitrogen into the cooling system to
ensure the air tightness.
● All refrigerant pipes and water pipes are secured.
● The drainpipes have gradients, but no trap is allowed.
● All pipes are fastened with heat insulation cotton.
● Check that the needle valve plug is secured (torque of 0.45±0.05
N•m), and valve bonnet is tightened.
Expected Result
● The power voltage is the same as the rated voltage on the
nameplate.
● Cables are intact.
● No open or short circuits, or incorrect connections occur in
electrical loops.
● The power cables to the indoor and outdoor units and the signal
cables between the indoor and outdoor units are connected
properly.
● The rated values of circuit breakers are correct.
● All cables, connectors, and bolts are secured.
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3 Installation Guide
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