7
of 53
2
、
、
、
、
General introduction
This section describes how the unit works, the cooling and control strategy.
General description
The unit is a mono block microprocessor controlled heat management system especially designed
for heat management of electronic enclosures. The unit contains fans, compressor as well as an
active cooling section. Internal fan and damper motor as well as a free cooling section. This en-
sures that this unit will work in extreme temperatures ranging from -40
℃
to +55
℃
.
Working principle
About the working principle of this combine unit, please see below illustration.
1
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、
、
、
Active cooling
Under this mode, the internal air and external air are not interaction.
Summary of Contents for DCU22-2000DH
Page 51: ...51 of 53 12 Appendix Dimension...
Page 52: ...52 of 53 Wiring diagram...
