Page 4 of 8
Drawing : - TPC226
Issue
: - 5
Date
: - 05/01/12
OPERATION
The operation of the dehumidifier is to remove moisture from the air by having
it condense on the cold tubes of the evaporator coil. The air then passes over
the hot condenser coil and returns to the conditioned space slightly warmer
and dryer than when it entered the dehumidifier unit.
TEST FOR CORRECT OPERATION
The following procedures should be followed to test the CD30 for correct
operation.
1. After unpacking, examine all external features to confirm damage free
shipment. Report all defects and damage at once.
2. Check dehumidification process:
a)
Place unit on a level surface.
b)
Start up unit by rotating the adjustable humidistat knob counter
clockwise to the minimum setting. Plug in the unit to a grounded
receptacle with a 15 amp power source. Rotate the humidistat
knob clockwise to the maximum setting.
c)
Check the compressor is running.
d)
Leave the machine running for 15 minutes.
e)
Observe the evaporator coils, to confirm frost formation.
i. If the air temperature is below 70ºF, an even coating of
frost should cover the entire evaporator coils, except for
the last one or two coils.
ii. If the temperature is above 70ºF, frost and/or droplets of
condensed water should cover the entire evaporator coil.
If after carrying out all the above checks, the unit does not appear to function
correctly refer to the section, “Trouble Shooting”, or contact your supplier.
WARNING:
•
Due to the high pressures within the refrigeration circuit, under no
circumstances must direct heat be applied to the evaporator coil in an
attempt to remove the build up of ice.
•
No attempt should be made to cut open any part of the refrigeration circuit
due to high pressures and gas involved. If the unit is switched off at the
mains power supply for any reason, the unit must be allowed to stand at
rest for at least three minutes before restarting. Failure to do so may cause
the unit to blow the fuses owing to the compressor due to there being a
refrigerant imbalance.
