Huawei NetCol5000-A - Commissioning; Vacuumizing and Precharging Refrigerant

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
4 Commissioning
Issue 01 (2017-07-27)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
82
4 Commissioning
4.1 Vacuumizing and Precharging Refrigerant
Ensure that no combustion-supporting materials (air or additives) enter the air conditioning
system during commissioning. Huawei shall not be liable for any risks and losses thus
incurred.
4.1.1 Refrigerant Charge Amount
Refrigerant R410A from name brands such as DuPont, Daikin, and Honeywell is
recommended.
Table 4-1 Refrigerant
Length of the
One-Way
Connection
Pipe Between
the Indoor and
Outdoor Units
(L)
Refrigerant
Charge Amount
NetCol500
-036
NetCol500-036
Including a
Low-Temperat
ure Component
NetCol500-0
72
L ≤ 10 m
Standard charge
amount (kg)
9.2
20.2
13.2
10 m < L ≤ 60 m
Refrigerant charge
(kg) = Standard
charge +
Additional charge
9.2 + (L –
10) x 0.19
20.2 + (L – 10) x
0.19
13.2 + (L –
10) x 0.19
60 m < L ≤ 100
m
Refrigerant charge
(kg) = Standard
charge +
Additional charge
9.2 + (L –
10) x 0.25
20.2 + (L – 10) x
0.25
13.2 + (L –
10) x 0.25