TP48200A-DT19C1, TP48200A-DT19C2,
TP48200A-HT19C1 and TP48200A-HT19C2 Telecom
Power
User Manual
Copyright © Huawei Technologies Co., Ltd.
circulation heat sink to accelerate the airflow. The air absorbs the heat from the external
circulation heat sink and returns to the external environment through the air exhaust
vents on the external circulation heat sink. The heat exchange between the internal and
external environment is implemented so far.
The TCUA control box controls the refrigeration chip in the TEC module to heat the
internal circulating air. The internal circulation fan draws the air inside the battery
compartment into the internal circulation heat sink. The internal circulation heat sink
heats the air and then returns the heated air to the battery compartment through the air
exhaust vents. Meantime, the external circulation fan operates according to control logic
and draws natural air into the external circulation heat sink. The air gives out heat and
returns to the external environment through the air exhaust vents on the external
circulation heat sink.
Figure 3-17 TEC airflow directions
3.7 Temperature Control Unit (for the TP48200A-HC1 and
TP48200A-HC2)
The equipment compartments of the TP48200A-HT19C1 and TP48200A-HT19C2 use an
HXC70S to cool the air while the battery compartments use a TEC. The HXC70S consists of
an internal circulation fan, an external circulation fan, and a heat exchanging core while the
TEC consists of a TEC module and a TCUA control box. The TCUA control box controls the
operating of the TEC module and the HXC70S.
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