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NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
If no manual operation is performed within 25s after you tap Start, the equipment will automatically run
following the preset logic, and the compressor and indoor and outdoor fans will also run according to the
environment.
After the compressor is powered on, ensure that the electric heating belt of the crankcase has
been heated for more than 12 hours before starting the compressor.
Step 4 (This step is required only when the signal cable connects to the RS485 port.) Modify the
input value of Outdoor fan to 50%. Then modify it to 0% after checking that the outdoor fan
runs properly and no alarm is generated.
Step 5 On the Diagnostic Mode screen, change the value for Indoor fan to 50% and tap On for the
electric heater.
1.
2.
Step 6 Commission the compressor by setting the compressor rotational speed to 3000 rpm.
1.
Table 5-2 Normal discharge pressure ranges
Outdoor Ambient Temperature
Below 15° C
15–35° C
35–45° C
2.
3.
4.
If the suction pressure, discharge pressure, and suction overheating degree is without normal ranges,
check and make sure that:
1. Charge refrigerant in an amount exactly as standard charge required.
2. The air inlet and outlet of outdoor unit are without block.
If the problem remains unresolved after troubleshooting, please contact Huawei technical support.
Issue 03 (2020-01-10)
Check whether the indoor fans run properly and no alarm is generated.
If hot air blows out from the exhaust vent of the fan after a period, the electric heater
runs properly. In this case, tap OFF for the electric heater and set the value for Indoor
fan to 0%.
On the home screen, choose Running > Device Details > Compressor and check that
the value of Suction pressure is in the range of 0.7–1.2 MPa and the value of Discharge
pressure is in a range listed in the following table.
On the home screen, choose Running > Device Details > EEV and check that the value
of EEV suction superheat degree is in the range of 8–15° C.
Charge the rest of the refrigerant from the low-pressure pipe needle valve in small flow
or intermittently if possible. The total amount of charged refrigerant must meet the
requirements in
5.2.1 Requirements of Refrigerant and Refrigerant Oil to Be
Choose Maint > Diagnostic Mode > Enter, set the input volume for the compressor to
0 rpm.
Copyright © Huawei Technologies Co., Ltd.
5 Power-On Commissioning
Normal Discharge Pressure Range
1.5–2.5 MPa
1.5–3.1 MPa
2.5–3.8 MPa
Charged.
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