Table of Contents
Advertisement
NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Figure 5-3 Partially charging in refrigerant
(1) Pressure gauge
(4) Electric balance
Step 2 Slightly open the refrigerant cylinder valve and connection nut for the pressure gauge shown
in
Figure
Step 3 Put the inverted steel vessel on an electric balance and clear the reading.
Step 4 Open valves of the pressure gauges and the steel vessel, shown in
charging refrigerant.
Never move the hose or steel vessel during refrigerant charging. Otherwise, the value on
the electric balance is influenced.
Charge less than 1 kg of refrigerant from the low pressure side, and charge the rest from
the discharge pipe needle valve.
Step 5 Refrigerant to be partially charged should be no less than half of total calculated amount, and
no more than the total calculated amount. Charge the left refrigerant when commissioning the
system, as described by
Step 6 Close the pressure gauges and the valve of the steel vessel after charging in refrigerant.
Issue 03 (2020-01-10)
(2) Coupling nut
(5) Discharge pipe needle valve
5-3. Tighten the nut when cold air escapes out of the nut.
5.5 Commissioning
Copyright © Huawei Technologies Co., Ltd.
5 Power-On Commissioning
(3) Refrigerant vessel
(6) Low-pressure needle valve
Figure
Procedure.
5-3, and start
137
Advertisement
Table of Contents
