Huawei NetCol8000-A013 User Manual page 81

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Step 2 Tap
Step 3 Set EEV Opening of the electronic expansion valve to 300step, and keep that for
30s to allow for the positive pressure inside the refrigerant pipe of the indoor unit.
Step 4 Change the input of the outdoor fan to 100%. After checking that the outdoor fan
rotates normally and no alarm is raised, change the input of the outdoor fan to
0%.
Step 5 Change the input of the indoor fan to 100% and tap On for the electric heater.
1.
2.
Step 6 Commission the compressor by setting the compressor rotational speed to 3000
rpm.
1.
Issue 02 (2020-11-09)
NO TE
If the startup confirmation screen is displayed, enter the password to complete the startup.
and choose Maintain > Diagnostic Mode.
Check whether the indoor fans run properly and no alarm is generated.
If hot air blows out from the air exhaust vent of the fan after a period of
time, the electric heater runs properly. In this case, tap Off for the electric
heater and change the input of the indoor fans to 0%.
According to the one-way pipe length, determine whether it is need to fill the
refrigerant. If you need to fill refrigerant, fill refrigerant through the needle
valve of gas pipe stop valve. Ensure that the refrigerant is charged in a small
amount or intermittently. The total amount of charged refrigerant must meet
the following requirements.
Table 4-6 Refrigerant to be charged
Length of One-way Pipeline L
≤ 30 m
30 m < L ≤ 60 m
Copyright © Huawei Technologies Co., Ltd.
4 Power-On Commissioning
Refrigerant Supplement Charge
Amount
No need to charge refrigerant
(L – 30) x 0.05
74