Temperature Control Unit (For The Tp48200A-Hx09A3 And Tp48200A-Hx09A4); Heat Exchange - Huawei Telecom Power TP48200A-HX09A3 User Manual

TP48200A-HX09A3, TP48200A-HX09A4,
TBC300A-DCA3, TBC300A-DCA5 and
TBC300A-TCA2 Telecom Power
User Manual
3.6 Temperature Control Unit (for the TP48200A-HX09A3
and TP48200A-HX09A4)

3.6.1 Heat Exchange

The equipment compartment of the power cabinet adopts heat exchanging to cool the
equipment compartment, in which heat is exchanged through internal circulation and external
circulation.
Internal circulation: hot air in the equipment compartment is drawn by the internal fan into the
heat exchanger, passes through the heat exchanging core from top to bottom, then releases
heat to change to cold air, and finally returns to the equipment compartment through the
internal air exhaust vent under the heat exchanger.
External circulation: natural air outside the equipment compartment is drawn by the external
fan into the heat exchanger via the equipment compartment, passes through the heat
exchanging core from bottom to top, then absorbs heat to change to hot air, and finally flows
out of the equipment compartment from the external air exhaust vent.
Figure 3-19 shows the heat exchange working principles.
Figure 3-19 Heat exchange working principles
Issue 04 (2019-11-15) Copyright © Huawei Technologies Co., Ltd.
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