Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
DD400P
INDUSTRIAL DEHUMIDIFIER
OWNER’S MANUAL
www.eipl.co.uk
Page 1 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
DD400P
PACKAGE CONTENTS
Item Description Quantity
1064RG-US Dehumidifier 1
TPC438 Manual 1
Page 2 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
UNPACKING
Carefully remove the DD400P 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
Dehumidifiers remove moisture from the air that is circulating through the unit.
The resulting reduction of relative humidity helps prevent rust, rot, mould,
mildew and condensation within the room, or other enclosed spaces where
the dehumidifier is used.
The DD400P is of the desiccant wheel type designed to dry air by passing a
large volume of air, the “process” air through a slowly rotating Silica gel rotor.
Silica gel is a hygroscopic material that absorbs moisture direct from the air.
As the air passes through the rotor the humidity of the air is reduced, whilst
the moisture content of the rotor is increased. A smaller volume of air, the
reactivation air, is heated by an internal heater and passes through a portion
of the rotor in the opposite direction. As this heated air passes through the
rotor it will “reactivate” it by removing the moisture content from the silica gel
material. The reactivation air will leave the humidifier as warm, moist air and
must be vented to outside of the building.
Continuous circulation of the room air through the dehumidifier unit gradually
reduces the relative humidity in the room.
The DD400P dehumidifier is a robust, compact unit designed to control the
humidity in the enclosed space in which it is placed. The casing is a welded
steel construction which is epoxy coated for resilience to damage caused by
rough handling. The unit has been designed for the exacting conditions which
can prevail in offices, shops, houses, restaurants, public houses etc. It
combines lightness and compactness with high reliability and strength.
The unit is thermally protected and will switch off if the maximum operating
temperature of 40ºC is exceeded.
The dehumidifier has two separate filters. One in the “process” air inlet and
one in the “reactivation” air inlet, used to clean the air entering the
dehumidifier.
Page 3 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
SPECIFICATIONS
M
ODEL
H
EIGHT
W
D
: DD400P
: 787mm (31”)
IDTH
: 552mm (21.7”)
EPTH
: 487mm (19.2”)
W
EIGHT
D
RY AIRFLOW
W
ET AIRFLOW
P
OWER SUPPLY
P
F
D
EHUMIDIFICATION CAPACITY
(
AT
28°C
AND
60% RH)
N
: 31Kg (68.4 lbs)
: 370 M³/HR
: 150 M³/
HR
: 230V, 1 ph, 50Hz
OWER
INISH
2.2 kW (max)
: Epoxy Coated
34 lt/day
OISE
67dB(A)
Page 4 of 12
Drawing : - TPC 438
-
WARNING
Issue : - 1
Date : - 20/10/15
INSTALLATION
POSITIONING:
The DD400P is designed for indoor use. Position the dehumidifier unit in the
center of the room to be conditioned if at all possible.
NOTE: Both the air inlets and outlets of the dehumidifier unit must have clear
space around them and not be obstructed in anyway.
DUCT CONNECTION
The wet air outlet from the dehumidifier must be exhausted to outside of the
room being dried by means of a suitable duct. All duct connections to the
dehumidifier have been designed for connections to standard size ducts.
The duct should be as short as possible to reduce the risk of condensation of
the wet air. The duct should slope downwards away from the unit to stop any
condensed water from flowing back into the unit.
The dry air outlet is also provided with a means of attaching a duct. This can
be used to direct the air towards more severe damp patches.
WIRING:
THIS APPLIANCE MUST BE EARTHED
The DD400P is provided with a standard plug and is designed to operate from
a 13 Amp supply.
-
IMPORTANT – The wires in the mains lead are coloured in accordance with
the following code:
GREEN…………EARTH
WHITE…….…….NEUTRAL
BLACK...….…….LIVE
If the supply cord is damaged it must be replaced by qualified Ebac Industrial
Products Ltd personnel or other similar qualified persons in order to avoid
hazard
.
Page 5 of 12
Drawing : - TPC 438
0
I
Issue : - 1
Date : - 20/10/15
OPERATION
The electrical controls are located on the front of the rear. They are:
• ON / OFF Switch
Dehumidifier OFF
Dehumidifier ON
• Digital Humidistat
Setting the Digital Humidistat
The Digital Humidistat is factory preset to give the optimum
level of control. Only adjustment of the desired set point is
required.
During normal operation, the display shows the current % Relative
Humidity within the space being conditioned.
The required humidity level can be set as follows:
• Press the “S” button once to access the set point
• Press the ▲ or ▼ button to change the display to the
desired Humidity level
Press the “S” button again to save the set point – The control returns to
displaying the current % Relative Humidity
• An hour counter is provided to display the total time the unit has been
in operation
To start the dehumidifier, turn the On / Off switch to position I. Then set the
required humidity set point as stated above.
The process fan will start immediately and if the digital humidity set point is
lower than the room humidity then after a slight delay the regeneration fan will
start – air can be felt blowing from the air outlets and the heater will come on.
The unit will operate at this setting until the required humidity level is reached
at which point the heaters and regeneration fan only will switch off. The unit
will continue to monitor the humidity level and reactivate the heaters and
regeneration fan as required. It will continue this cycle until the unit is
switched off.
Note. The DD400P is controlled by an electronic circuit board and uses dual
PTC (positive temperature coefficient) heater technology to provide the heat
necessary to “reactivate” the rotor. To ensure safe start up, the heaters are
switched on in stages – the first heater is switched on at start up and the
remaining heater switched on after 10 seconds.
Page 6 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
AIR MOVING SYSTEM:
The DD400P is a dual fan system with dedicated fans for the “Process” air
and “Regeneration” air flows. As the air passes over the rotor, it will be
heated as a result of the regeneration cycle. The air leaving the unit will be
hotter than the air entering
During normal operation some parts of the dehumidifier may become hot. This
is normal.
HIGH TEMPERATURE CUT OUT:
The DD400P dehumidifier has been designed to work in ambient conditions of
-20ºC to +40ºC. Should the temperature in the room become excessive an
overheat protector will operate, switching off the PTC heaters. The fans and
drive motor will continue to operate. This is a manual reset device. Prior to
resetting the protector, check that the dehumidifier is installed correctly and
the ambient temperature does not exceed 40°C.
See repairs section for details on resetting device.
DEHUMIDIFICATION CAPACITY
Approximate capacity in Kg/h at different inlet process air temperature and
relative humidity (%)
Dehumidification Capacity Kg/h
2.0
80 % RH
1.5
1.0
60 % RH
40 % RH
0.5
0.0
-10 0 10 20 30
Process Air Temperature (°C)
Page 7 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
SAFETY
-WARNING-
♦ DO NOT ALLOW CHILDREN TO PLAY WITH OR AROUND THE
UNIT. ENSURE THE UNIT IS INACCESIBLE TO CHILDREN
WHEN NOT ATTENDED.
♦ DO NOT USE THIS UNIT IN AN ENVIRONMENT CONTAINING
FLAMMABLE FUMES
♦ DO NOT USE THIS UNIT IF THE CABINET OR POWER CORD IS
DAMAGED
♦ DO NOT INSERT OBJECTS INTO ANY OF THE GRILLES ON
THE MACHINE
♦ DO NOT COVER OR OBSTRUCT AIRFLOW FROM THE
GRILLES
♦ DO NOT OPERATE THE UNIT WITH THE COVERS REMOVED
♦ DO NOT ATTEMPT ANY REPAIRS SHOULD THE UNIT FAIL TO
OPERATE
♦ DO NOT STAND ON THE UNIT
♦ DO NOT LIFT THE UNIT WHEN SWITCHED ON
♦ DO CHECK THE PLUG ON THE EQUIPMENT MATCHES THE
SUPPLY
♦ DO USE THE UNIT FOR THE PURPOSE FOR WHICH IT WAS
DESIGNED
♦ DO ENSURE THE POWER CORD AND SUPPLY IS EARTHED
CORRECTLY
♦ DO USE A RESIDUAL CURRENT DEVICE “RCD” WHERE
POSSIBLE
♦ DO KEEP THE UNIT DRY. NEVER USE A HOSE OR PRESSURE
WASHER TO CLEAN THE UNIT.
Page 8 of 12
Drawing : - TPC 438
WARNING:
Issue : - 1
Date : - 20/10/15
ROUTINE MAINTENANCE & REPAIR
To ensure continued full efficiency of the dehumidifier, maintenance
procedures should be performed as follows:
ENSURE THAT THE POWER CORD TO THE MACHINE HAS
BEEN DISCONNECTED BEFORE CARRYING OUT ROUTINE
MAINTENACE.
SWITCH OFF THE DEHUMIDIFIER APPROXIMATELY 15
MINUTES PRIOR TO REMOVING ANY PANELS, ALLOWING
THE HEATER TO COOL DOWN
• We recommend that the filters are checked at least once a month.
Intervals for cleaning or replacement of filters will depend on the
installation
• Never operate the dehumidifier without the filters, as the rotor can be
damaged by dust.
To carryout the following, it is necessary to remove the side cover panels.
This machine should be serviced by qualified Ebac Industrial Products Ltd
personnel or other persons having technical competence in servicing
electrical equipment following the instructions in this Service Manual.
• The rotor is maintenance free. However, should it be necessary to
clean the rotor, compressed air should be used to carefully blow dirt
from the rotor.
• The PTC heaters are maintenance free. However should it be
necessary to clean the heaters, compressed air should be used to
carefully blow dirt from the heaters.
• Check that the fans are firmly secured and that the fan rotates freely.
• Check all wiring connections.
• Check the belt tensioning at regular intervals. Adjust when needed by
loosening the four bolts holding the drive wheel and rotating the drive
motor until correct tension is achieved.
• The overheat protector is located inside the unit, above the rotor. To
reset this device press the red button.
• Should an electrical component fail, consult the Factory Service Center
to obtain the proper replacement part.
Page 9 of 12
Drawing : - TPC 438
Low
current
Issue : - 1
Date : - 20/10/15
I
F ANY OF THE PRECEDING PROBLEMS OCCUR, CONTACT THE EBAC
I
NDUSTRIAL PRODUCTS LTD SERVICE CENTER PRIOR TO CONTINUED
OPERATION OF THE UNIT TO PREVENT PERMANENT DAMAGE
TROUBLESHOOTING
S
YMPTOM
C
AUSE
R
EMEDY
.
Little or no
dehumidification
capacity
Dehumidifier does
not start
Rotor does not
rotate
No Dry or Wet Air
Airflow
Filter clogged
No regeneration heat Check PTC / OHP
Reduced airflow Check fans / duct
No rotation of Rotor Check belt tension / drive motor
Air leakage Check sealing
No power Check fuse
Correct switch setting Check On / Off switch
Loose electrical wiring
Drive belt slipping Check belt tension
Drive belt broken Replace drive belt
Rotor jammed Check centre shaft, rim of rotor
Drive motor faulty Check supply /Replace motor
Filter clogged Clean or replace filters
Fan faulty Check supply / fan
Ducts blocked Check duct for obstruction
Clean or replace filters
Check wiring diagram - fault
find & repair
displayed on
ammeter
Noisy
Low reactivation airflow Check air path for restriction
PTC faulty Check PTC / OHP
Fan loose Check fans secured firmly
Loose fastenings Tighten all fastenings
Page 10 of 12
Drawing : - TPC 438
Issue : - 1
Date : - 20/10/15
SPARE PARTS LIST
D
ESCRIPTION
Process Air Fan Motor 3040251
Capacitor for Process Air Fan Motor 3030835
Process Inlet Filter 2050029
Regeneration Air Fan Motor 3040250
Capacitor for Regeneration Air Fan Motor 3030834
Regeneration Inlet Filter 2064032
Drive Motor 3040259
Capacitor for Drive Motor 3030859
Pulley 3050552
Pulley Belt 3050551
P
ART NUMBER
PTC Heater 3031625
Overheat Protector 3477026
Desiccant Wheel 3020706
PCB Controller 1619600
Mains Cable 3035148
On / Off Switch 3035914
Hour Counter 3030796
Humidity Controller 3031530
Spare parts available online
www.EIPLDIRECT.com
Page 11 of 12
Drawing : - TPC 438
UK Head Office
American Sales Office
German Sales Office
Issue : - 1
Date : - 20/10/15
Ebac Industrial Products Ltd
St Helens Trading Estate
Bishop Auckland
County Durham
DL14 9AD
Tel: +44 (0) 1388 664400
Fax: +44 (0) 1388 662590
www.eipl.co.uk
sales@eipl.co.uk
Ebac Industrial Products Inc
700 Thimble Shoals Blvd.
Suite 109, Newport News
Virginia, 23606-2575
Tel: +01 757 873 6800
Fax: +01 757 873 3632
www.ebacusa.com
sales@ebacusa.com
USA
Page 12 of 12
Ebac Industrial Products Ltd.
Gartenfelder Str. 29-37
Gebäude 35
D-13599, Berlin
Germany
Tel: +49 3043 557241
Fax: +49 3043 557240
www.eip-ltd.de
sales@eip-ltd.de
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