![background image](http://html.mh-extra.com/html/huawei/netcol5000-a020/netcol5000-a020_user-manual_166609112.webp)
NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
5 System Operation and Maintenance
Issue 01 (2014-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
105
Step 4
Remove the compressor.
Figure 5-6
Removing the compressor
1.
Heat thread connecting points of angle valves on the suction pipes using a heat gun, wait
for about 10 minutes.
2.
Fix nuts for fixing angle valves and pipes using two 30# adjustable wrenches (as shown
in 1 of
Figure 5-6
), and loosen the adjustable nut using a 36# adjustable wrench to apart
the suction pipes and angle valves. Then, seal the suction vent to ensure that the system
is clean and does not draw in moisture.
3.
Heat thread connecting points of angle valves on the suction pipes using a heat gun, wait
for about 10 minutes.
4.
Fix nuts for fixing angle valves and pipes using two 30# adjustable wrenches (as shown
in 2 of
Figure 5-6
), and loosen the adjustable nut using a 30# adjustable wrench to apart
the discharge pipes and angle valves. Then, seal the discharge vent to ensure that the
system is clean and does not draw in moisture.
5.
Remove four bolts under the compressor support using a 13# ratchet or fixed wrench (as
shown in 3 of
Figure 5-6
), and take out the compressor and its support (as shown in 4 of
Figure 5-6
).
Step 5
Cut off power cable ties fixing cables to the compressor, open the terminal block cover using
a Phillips screwdriver, and remove power cables to the compressor.
Step 6
Remove four bolts fixing the compressor and its support using the 13# ratchet or fixed wrench
and take down the compressor.
Step 7
Remove angle valves on the air inlet and exhaust pipelines to the compressor and install them
onto the new compressor using a welding torch.