Harison HD-100BM, Руководство пользователя

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HARISON INDUSTRIAL DEHUMIDIFIER - USER'S MANUAL - Model: HD-100BM
2.2. INNER COMPONENT IDENTIFICATION AND WORKING PRINCIPLE
Other main working components are: high efficient compressor, accumulator, magnetic
flow control valve, evaporator coil, condenser coil, capillary tube, centrifugal fan,
temperature sensor, humidity sensor and electrical wiring.
a. Main working principle
When dehumidifier is switched on, the compressor starts to work. The compressor draws in
low-pressure and low-temperature refrigerant stream from evaporator, and compresses it
into high-temperature and high-pressure gas. The gas enters into condenser and is
condensed into liquid, giving out heat. Then through capillary, the liquid is throttled into
the evaporator, absorbs heat from the air and is evaporated into gas. The gas is drawn into
the compressor through air intake pipe. Just in this way the refrigeration cycle is completed.
Such a cycle repeats time and again, and refrigeration is achieved.
b. Dehumidifying cycle
The centrifugal fan makes wet air entering into the evaporator through air filter, then the air
is cooled down. When the surface temperature of the evaporator is lower than the dew-point
temperature of the air, the water content in the air is condensed and drained from the
machine. The dehumidified air is then heated by the condenser and is discharged into the
room by the centrifugal fan. Thus, the air goes through the cycle and the water in the air
gets condensed so as to achieve dehumidification.
c. Defrosting cycle
When the environment temperature is lower ( 5
o
C - 18
o
C ) during running, the surface of
the evaporator will be frosted due to lower temperature. The computer will judge and send
the defrosting command automatically as the situation. After defrosting, the dehumidifier
co
nd
ense
r
e
v
a
p
or
ator
filter filter
capillary
ai
r st
ra
in
e
r
valve
compressor
accumulator
the flowing direction of refrigerant in defrosting cycle
the flowing direction of refrigerant in dehumidifying cycle
the flowing direction of air