Drawing : - TPC250
Issue : - 6
Date : - 10/12/13
CD425
INDUSTRIAL DEHUMIDIFIER
INSTALLATION, OPERATION
& MAINTENANCE MANUAL
www.eipl.co.uk
Page 1 of 16
Drawing : - TPC250
Issue : - 6
Date : - 10/12/13
CD425 1018125
PACKAGE CONTENTS
Item Description Quantity
1018125 Dehumidifier 1
3086144 Quick release hose coupling 1
3944110 PVC Tube – 3/8” I/D 7.8M
TPC250 Manual 1
CD425 1018150
PACKAGE CONTENTS
Item Description Quantity
1018150 Dehumidifier 1
3086119 Jubilee clip 2
3017315 Reinforced tubing – 16mm I/D 2 X 3M
TPC250 Manual 1
Page 2 of 16
Drawing : - TPC250
Issue : - 6
Date : - 10/12/13
UNPACKING
Carefully remove the CD425 dehumidifier unit from its transit box and visually
check for signs of transit damage. If there is evidence of damage DO NOT
attempt to operate the unit, call your supplier for advice. Do not discard the
packing; it will be useful when transporting the dehumidifier unit in the future.
INTRODUCTION
The Ebac CD425 dehumidifier removes moisture from the air that circulates
through it. The resulting reduction in relative humidity protects buildings and
their contents from the adverse effects of excess humidity.
The CD425 dehumidifier comprises of:
a) A compressor
b) Refrigerant evaporator coils
c) Refrigerant condenser coils
d) Circulation fan
e) A drain tray for collecting and disposing of condensed moisture
f) A cabinet to house the above components
The fan draws the moist air through the cold evaporator coils which cools the
air below its dew point. Moisture forms on the evaporator and is collected in
the condensate tray which leads away to a permanent drain. The cooled air
then passes through the hot condenser, where it is reheated using the same
energy removed during the cooling phase and the additional heat generated
by the compressor.
The air is, therefore, discharged from the dehumidifier at a slightly higher
temperature, but a lower relative humidity, than that which it entered.
Continuous circulation of air through the dehumidifier gradually reduces the
relative humidity within the area being dehumidified.
Where large amounts of moisture are required to be removed from the area,
more than one dehumidifier may be required, please contact your local
distributor for advice.
Page 3 of 16
Drawing : - TPC250
Issue : - 6
Date : - 10/12/13
SPECIFICATIONS
M
ODEL
H
W
D
W
A
IRFLOW
M
AXIMUM OPERATING
T
EMPERATURE
P
OWER SUPPLY
R
EFRIGERANT TYPE/QTY
"This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. The
refrigeration system is hermetically sealed.
The Global Warming Potential (GWP) of refrigerants used in products manufactured by Ebac
Industrial Products Ltd is as follows
R134a – 1300
R407c – 1610
For type and weight of refrigerant contained in this unit, please refer to the product data label"
: CD425
EIGHT
: 1193 mm (47”)
IDTH
: 1092 mm (43”)
EPTH
: 482 mm (19”)
EIGHT
: 160 Kg (353 lbs)
: 2975 m3/hr (1750 cfm)
35ºC (95ºF)
:
: 440V, 3 ph, 60Hz
: R407c (2.5Kg)
Page 4 of 16
Drawing : - TPC250
Issue : - 6
Date : - 10/12/13
OPERATION
The CD425 is a self contained low temperature dehumidifier. All electrical
contactors, overloads, etc are housed in an electrical box built inside the unit.
The unit is quipped with a defrost valve which energised automatically to clear
any ice formation on the evaporator coils. This allows the unit to operate at
much lower temperatures, the control panel gives indication of the set
humidity, drying and defrost status.
TEST FOR CORRECT OPERATION
The following procedure should be followed to test the unit for correct
operation.
1) After unpacking connect the unit to a 460V 3ph 60 Hz – 3 wire power
supply.
2) Switch fan ON and check for the correct fan rotation. (Air blows out of the
top of the machine).
3) Check dehumidification process:
a) Remove the front cover
b) Check the actual relative humidity inside the area
c) Set humidity control to a LOWER value than the actual relative
humidity
d) After approximately 6 minutes check the compressor is running
e) Leave the machine to run for 15 minutes. (NOTE: ensure that
the set humidity, see c above, is set very low as the compressor
will switch off when the actual RH coincides with the set point)
f) Observe the evaporator coils
i. If the air temperature is below 20ºC an even coating of
ice should cover the entire evaporator coil
ii. If the temperature is above 20ºC droplets of condensed
water should cover the entire evaporator coil
4) If the air temperature is below 20 ºC the unit will go into defrost within
60 minutes. During the defrost cycle the defrost solenoid valve is
energised and a warming of the evaporator coil can be felt.
If after carrying out the above checks the unit does not appear to
function correctly refer to the repairs section or your supplier.
Page 5 of 16
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