Preparing For Power-On - Huawei NetCol5000-A021 User Manual

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
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5.3 Preparing for Power-On

Procedure
Step 1 Verify that the humidifier water inlet pipe and drainpipe are correctly connected, and that the
thermal insulation foam is intact. Then connect refrigerant pipes and precharge refrigerant.
Ensure that there is no reverse or open phase for the input power cable of the smart cooling
product. Otherwise, the smart cooling product may be damaged beyond repair.
Step 2 Verify that the wires are connected for the indoor and outdoor units in the correct phase
sequence.
Step 3 Verify that the output power breaker (for the outdoor unit and compressor) QF3, and heating
and humidification switch QF4 are switched on.
Step 4 Verify that fan switches Fan1 to Fan6 are switched on.
Step 5 For the single power input scenario, verify that the phase sequence is correct. For the dual
power input scenario, verify that the phase sequence is correct, and that MD1 and MD2 are
switched on.
Step 6 Verify that the smart cooling product circuit breaker in the upstream PDC is switched off.
Step 7 Verify that the input terminals of AC1 and AC2 are not short-circuited, and that the live wire
is not connected to the ground.
Step 8 Verify that the input voltage meets the requirement.
Step 9 Verify that the indoor unit power cable is connected properly.
Step 10 Verify that the signal cable between the indoor and outdoor units is properly connected.
Step 11 Verify that the water sensor is properly installed.
Step 12 If teamwork networking is required, verify that the teamwork cable is correctly connected.
Step 13 Verify that the cable connections and DIP switch settings of the T/H sensors are correct.
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Issue 03 (2020-01-10)
After the injection is completed, tighten the needle valve bonnet, and check whether the needle valve
leaks by applying soap bubbles to the valve vent or using a halogen leak detector. If the valve leaks,
contact Huawei technical support.
Copyright © Huawei Technologies Co., Ltd.
5 Power-On Commissioning
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