EIPL BD12 User manual
Page 1 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
BD12
INDUSTRIAL DEHUMIDIFIER
OWNER’S MANUAL
BD12 PRODUCT RANGE
1026500 1ph 110/230v 50Hz UK
1026600 1ph 230v 50Hz UK
1026700 1ph 230v 50 Hz Germany
1026800 1ph 230v 50Hz France
1026900 1ph 115v 60 Hz North America
www.eipl.co.uk
Page 2 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
UNPACKING
Carefully remove the BD12 dehumidifier from its transit packing and visually
check for signs of transit damage. If there is evidence of damage DO NOT
attempt to operate the unit call you supplier for advice.
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.
A dehumidifier consists of a motor-compressor unit, a refrigerant condenser,
an air circulating fan, a refrigerated surface, a means of collecting and
disposing of the condensed moisture and a cabinet to house these
components.
The fan draws moist air over the refrigerated surface and cools it below its
dew point, removing the moisture which is collected and lead away. The cool
air then passes the hot condenser, where it is reheated. With the addition of
other radiated heat the air is discharged into the room at a higher temperature
but lower relative humidity than when the air entered the unit. Continuous
circulation of the room air through the dehumidifier unit gradually reduces the
relative humidity in the room.
The BD12 dehumidifier is a robust, unit designed to control the humidity in the
enclosed space in which it is placed.
The unit is thermal protected and will switch off for a period of time if the
maximum operating temperature of 35ºC is exceeded.
The BD12 dehumidifier unit is normally supplied, with a trolley, which is to aid
its mobility from room to room. It is possible, by removing the four M8 bolts
which fix the unit to the trolley, to have a freestanding unit for longer term
applications, or by mounting the unit on the wall, by means a suitable bracket
for permanent applications.
The gas which is used inside the hermetically sealed refrigeration circuit is
R22, which has been passed as a non ozone depletion factor by the Montreal
Protocol.
BUT under no circumstances should this gas be released into the
atmosphere, the unit should be serviced by trained personnel who will reclaim
any of the unwanted gas.
Page 3 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
BD12 DEHUMIDIFIER
SPECIFICATION
H
EIGHT
:
900 mm
W
IDTH
:
575 mm
D
EPTH
:
632 mm
W
EIGHT
:
80 kg
A
IRFLOW
:
700 m3/hr
P
OWER
:
1500 w
P
OWER
S
UPPLY
:
110/230v 1ph
50hz; 115v 1ph
60hz
F
INISH
:
Epoxy powder
M
OBILITY
:
Two wheeled
trolley
E
FFECTIVE
V
OLUME
:
572 cfm
R
EFRIGERANT
T
YPE
:
R22
R
EFRIGERANT
C
HARGE
:
0.700 kg
"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"
Page 4 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
INSTALLATION
POSITIONING
Position the dehumidifier unit in the centre of the room, or area to be
conditioned if it all possible. However, if a damp patch is particularly apparent
the outlet grille should be directed towards it.
Note: Both the inlet and outlet grille of the dehumidifier unit must have clear
space around them and not be obstructed in anyway.
WIRING
Connect the power mains cable/plug of the dehumidifier to a 15 amp power
supply. As follows:
110/230 Volt supply
Brown Live
Blue Neutral
Green/Yellow Earth (Ground)
115 Volt Supply
White Live
Black Neutral
Green/Yellow Earth (Ground)
STARTING PROCEDURE
With the dehumidifier unit connected to the correct power supply, move the
switch (on the front of the unit) to ON position, both the compressor and the
fan motor will start.
Note: For units fitted with “Low voltage protection” see under the Standard
features section
DRAINAGE
Connect a 10mm inside diameter hose to the condensate outlet pipe
(positioned beneath the air inlet grille). Secure the hose (with the clip
provided). The hose should at no point be raised higher than the outlet pipe in
the condensate drainage tray. The hose should be ran to a permanent drain.
Failure to observe this requirement will result in flooding of the dehumidifier
unit.
Page 5 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
OPERATION
GENERAL 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.
AIR MOVING SYSTEM
Air is drawn in through the inlet grille of the dehumidifier unit and over the two
heat exchanges (Evaporator/Condenser coils) under the influence of the axial
fan which is driven by the motor. The operation of the fan motor is to run
continuously whenever power is supplied to the dehumidifier unit. The fan
motor used in the dehumidifier unit is induction protected i.e. the motor is able
to take stalled current without burning out the motor windings.
REFRIGERATION CIRCUIT
CONDITIONING OPERATION
The basic operation of a refrigeration system is to boil liquid refrigerant in the
evaporator coil, and re-condense it into a liquid in the condenser coil.
Liquid refrigerant is metered out from the capillary tubes into the evaporator
coil and under the influence of the suction port of the compressor; it boils or
evaporates into gas. In order to change its state from liquid into gas the
refrigerant requires a large amount of heat. This is gained by the tubes of the
evaporator coil which thereby become sufficiently cold to fall below the dew
point of the air which is passing over them. The refrigerant gas is taken into
the compressor and discharges into the condenser coil as high pressure gas.
The heat which was used to evaporate the refrigerant at low pressure is still
present and is shown by a rise in temperature of the gas as it leaves the
compressor. As heat is removed from the hot condenser coil by the air flowing
over it, the refrigerant gas is condensed back into liquid. It then leaves the
condenser coil and passes through the filter dryers before continuing the cycle
via the capillary tubes. In this way heat which is taken from the air as it passes
over the evaporator coils is re-introduced into the same air flow as it passes
over the condenser coil. However, since the temperature of the evaporator
coil is below the dew point of the air. Its moisture content is reduced and
thereby the air passing out to the conditioned space is reduced in relative
humidity (dryer air).
Page 6 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
DEFROST OPERATION
If the ambient temperature of the room, or space in which the dehumidifier
unit is conditioning falls below 25ºC, ice will form on the evaporator coil as the
air is passed over it, after a time this build up of ice on the evaporator coil will
effect the efficiency of the dehumidifier unit, on its ability to maintain the
required conditions for the room.
The BD12 is therefore fitted with a defrost control device. This defrost control
device is timed to operate every 50 minutes, at which time, for approximately
4 minutes the high pressure gas is diverted by means of a by-pass valve to
enter the evaporator coil. The effect of this high pressure gas entering the
evaporator coil is to melt any build up of ice on this coil; this melted ice is
collected and disposed of by means of the condensate tube.
When the temperature falls below 15ºC, even with the defrost operation, it is
possible that some ice will remain on the evaporator coil. To ensure that all
the ice is removed from the evaporator coil during the defrost mode, the BD12
dehumidifier unit is fitted with a temperature sensitive device (thermo-stat).
When the dehumidifier unit, is required to go into the defrost mode by the
timing device and the temperature has fallen below 15ºC, the fan motor will
stop. With the fan motor stopped the refrigeration gas temperature will
increase because of the rise in pressures.
Because the heat now within the refrigeration circuit is not being removed
from the condenser coil, this heat will ensure that all the ice is removed from
the evaporator coil.
WARNING
•Due to high pressures that are within the sealed refrigeration circuit, under
no circumstance must direct heat be applied to the evaporator coil in an
attempt to remove the build up of ice.
•Neither should any attempt be made to cut open, any part of the
refrigeration circuit for the same reason.
HIGH TEMPERATURE CUT OUT
The BD12 dehumidifier unit has been designed to work in ambient conditions
of between 0ºC and +35ºC. Should the temperature in the room or space
become excessive a thermo-stat (winding protector) within the compressor
casing will open and dehumidifying will stop until such time as the thermo-stat
automatically resets.
WARNING
If the dehumidifier unit is switched off at the mains power supply for any
reason, it must be allowed to stand and rest for at least three minutes before
restarting. Failure to do this may cause the unit to blow the fuses owing to the
compressor starting current occasioned by the imbalance of the refrigerant
pressures.
Page 7 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
STANDARD FEATURES
BY PRODUCT RANGE
EBAC Part No. 1026500
DUAL VOLTAGE
The dehumidifier unit is fitted with a transformer which will allow the unit to
operate at either 110 volts or 230 volts 1ph 50 Hz power supply.
All the electrical components in this dehumidifier are rated at 110v, for safety
reasons, and by the removal of the cover access will be gained to a switch,
mounted on the transformer which will allow the choice of voltage to be
selected.
EBAC Part No. 1026600
SINGLE VOLTAGE
The dehumidifier unit is fitted with electrical components which are rated at
230 volts and therefore can be used, only when a 230 voltage is available.
EBAC Part No. 1026700
SINGLE VOLTAGE
The dehumidifier unit is fitted with electrical components which are rated at
230 volts and therefore can be used, only when a 230 voltage is available.
LOW VOLTAGE PROTECTION
The dehumidifier unit is fitted with a PCB, which is designed to protect the
compressor from stalled starting, if the power supply to the unit falls below
208 volts. Indicators on the unit will display, if the power is still available but is
measured at less than 208 volts at the dehumidifier unit.
TEMPERATURE CONTROLLED DEFROST
The dehumidifier unit is fitted with a temperature sensitive device which will
operate in conjunction with the defrost control. In normal operation the defrost
control will come into operation every 50 minutes, this is to ensure that there
will be no build up of ice at lower temperatures, but where year round
conditions need to be maintained the dehumidifier unit will have to operate
across a wider range of temperatures. To ensure that the dehumidifier unit
operates at its most efficient this temperature sensitive device will restrict the
defrost operation to the times when the ambient temperature is below 25ºC.
Page 8 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
HOUR METER
The dehumidifier unit is fitted with a meter, which is positioned on the front of
the unit. This meter will measure the length of time in hours that the
dehumidifier unit has run.
EBAC Part No. 1026800
SINGLE VOLTAGE
The dehumidifier unit is fitted with electrical components which are rated at
230 volts, and therefore can be used, only when a 230 voltage is available.
EBAC Part No. 1026900
SINGLE VOLTAGE
The dehumidifier unit is fitted with electrical components which are rated 115
volts, 60Hz, and therefore can only be used when a 115 voltage and 60 Hz
are available.
HOUR METER
The dehumidifier unit is fitted with a meter, which is positioned on the front of
the unit. This meter will measure the length of time in hours the dehumidifier
has run.
Page 9 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
OPTIONAL FEATURES
ALL MODELS
CONDENSATE PUMP
The dehumidifier unit can be fitted, either in the factory, or as a retro-fit, with a
condensate pump Ebac part number 3160116. This condensate pump will
allow:-
1) The unit to run unattended, with the condensate run off to a permanent
drain.
2) The unit to be used up to 150 feet, (150 meters) below the level of a
permanent condensate drainage point.
HUMIDISTAT
The dehumidifier unit can be electrically wired through a wall mounted
humidistat Ebac part number 3031529. The humidistat incorporates a point
and scale which can be adjusted and set to a relative humidity level which is
acceptable to maintain the required conditions within the room or space. The
humidistat controls the ON/OFF function of the dehumidifier unit. When the
relative humidity of the air in the room or space falls below the set point of the
humidistat the dehumidifier unit will switch off, but when the relative humidity
of the air within the room or space, rises above the set point of the humidistat
the dehumidifier will switch on.
The function of the humidistat to control the OFF/ON operation of the
dehumidifier unit ensures that power is used only when dehumidifying is
required, this makes the use of dehumidifiers a cost effective way of
maintaining the relative humidity level of the air within the room or space.
Page 10 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
ROUTINE SERVICE
To ensure continued full efficiency of the dehumidifier, maintenance
procedures should be performed as follows:
1. Clean the surface of the evaporator and condenser coils by blowing
the dirt out from behind the fins with compressed air. Hold the
nozzle of the air hose away from the coil (approx 6”) to avoid
damaging the fins. Alternatively, vacuum clean the coils.
2. Check that the fan is firmly secured to the motor shaft and that the
fan rotates freely. The fan motor is sealed for life and therefore
does not need oiling.
3. To check the refrigerant charge, run the unit for 15 minutes and
briefly remove the cover. The evaporator coil should be evenly frost
coated across its surface. At temperatures above 25°C, the coil
may be covered with droplets of water rather than frost. Partial
frosting accompanied by frosting of the thin capillary tubes,
indicates loss of refrigerant gas or low charge.
4. Check all wiring connections.
5. To check the operation of the defrost system, switch the machine
on and leave it running for approximately 45 minutes. The machine
will then enter “Hot Gas” defrost mode for approximately 4 minutes
before returning to normal operation. If the unit will not defrost, the
printed circuit timer board may be defective or the by-pass valve
may be inoperable.
I
F ANY OF THE PRECEDING PROBLEMS OCCUR
,
CONTACT THE
E
BAC
S
ERVICE
C
ENTER PRIOR TO CONTINUED OPERATION OF THE UNIT TO
PREVENT PERMANENT DAMAGE
.
WARNING:
ENSURE THAT THE POWER CORD TO THE MACHINE HAS
BEEN DISCONNECTED BEFORE CARRYING OUT ROUTINE
SERVICE. THE SERVICING AND REPAIR OF THIS UNIT
SHOULD ONLY BE CARRIED OUT BY A SUITABLY QUALIFIED
PERSON..
WARNING:
DO NOT STEAM CLEAN REFRIGERATION COILS
Page 11 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
REPAIRS
1. Should an electrical component fail, consult the Factory Service
Center to obtain the proper replacement part.
2. If refrigerant gas is lost from the machine, it will be necessary to use
a refrigeration technician to correct the fault. Contact the Factory
Service Center prior to initiating this action.
Any competent refrigeration technician will be able to service the
equipment. The following procedure must be used:
a. The source of the leak must be determined and corrected.
b. The machine should be thoroughly evacuated before
recharging.
c. The unit must be recharged with refrigerant measured
accurately by weight.
d. For evacuation and recharging of the machine, use the crimped
and brazed charging stub attached to the side of the refrigerant
compressor.
The charging stub should be crimped and rebrazed after
servicing. N
EVER
allow permanent service valves to be fitted to
any part of the circuit. Service valves may leak causing further
loss of refrigerant gas.
3. The refrigerant compressor fitted to the dehumidifier is a durable
unit that should give many years of service. Compressor failure can
result from the machine losing its refrigerant gas. The compressor
can be replaced by a competent refrigeration technician.
Failure of the compressor can be confirmed by the following
procedure:
a. Establish that power is present at the compressor terminals
using a voltmeter.
b. With the power disconnected, check the continuity of the internal
winding by using meter across the compressor terminals. An
open circuit indicates that the compressor should be replaced.
c. Check that the compressor is not grounded by establishing that
a circuit does not exist between the compressor terminals and
the shell of the compressor.
Page 12 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
TROUBLESHOOTING
S
YMPTOM
C
AUSE
R
EMEDY
Little or no airflow
1. Loose fan on shaft
2. Fan motor burnt out
3. Dirty refrigeration coils
4. Loose electrical wiring
1. Tighten fan
2. Replace the fan motor
3. See Routine Maintenance
Section
4. Check the wiring diagram
to find fault and repair
Little or no
dehumidifying effect
1. Insufficient air flow
2. Compressor fault
3. Loss of refrigerant gas
1. Check all of the above
2. Contact the Factory
Service Center
3. Contact the Factory
Service Center
Little or no defrost
when required
1. Faulty Timer
2. Faulty bypass timer
1. Contact the Factory
Service Center
2. Contact the Factory
Service Center
Page 13 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
BD12 SPARE PARTS LIST
D
ESCRIPTION
Part Numbers
1026500
1026600
1026700
1026800
1026900
Compressor 3020116 3020128 3020128 3020128 N/A
Comp O/H protector
3031724 3031725 3031725 3031725 N/A
Comp Capacitor 3036337 3036338 3036338 3036338 N/A
Condenser Coil 2026502 2026502 2026502 2026502 2026502
Evaporator Coil 2026501 2026501 2026501 2026501 2026501
Filter Dryer 3020904 3020904 3020904 3020904 3020904
Fan Motor/Blade 3035755 3035756 3035756 3035756 N/A
By-pass Valve 3020814 3020814 3020814 3020814 3020814
PCB Timer N/A N/A 1617700 N/A N/A
Mech Timer 3030781 3030780 N/A 3030780 3030781
Hour Meter N/A N/A 3030778 N/A 3030779
Toggle Switch 3032301 N/A N/A N/A N/A
Rocker Switch 3035914 N/A N/A N/A N/A
Terminal Block 3031460 3031460 3031460 3031460 3031460
Terminal Block 3036813 N/A N/A N/A N/A
Transformer 3031001 N/A N/A N/A N/A
Solenoid Coil 3030421 3030422 3030422 3030422 3030421
Relay 3030270 N/A 3030270 N/A N/A
Mains Cable 3031202 3031231 3031270 3031270 3031202
Drain Tray 2026519 2026519 2026519 2026519 2026519
Condensate Tube 3014368 3014368 3014368 3014368 3014368
Drain Tube Clip 3086135 3086135 3086135 3086135 3086135
Rotary Switch N/A 3030557 3030557 3030557 3030557
Thermostat 2026543 2026543 2026543 2026543 2026543
Indicator Lamp N/A N/A 3034527 N/A N/A
Indicator Lamp N/A N/A 3034526 N/A N/A
Indicator Lamp N/A N/A 3034525 N/A N/A
Wheel 3050101 3050101 3050101 3050101 3050101
Spare parts available online
www.EIPLDIRECT.com
Page 14 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
WARNINGS
This appliance can be used by children from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
use of the application in a safe way and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without
supervision.
If the SUPPLY CORD is damaged, it must be replaced by the manufacturer,
its service agent or similarly qualified person in order to avoid hazard.
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
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.
Page 15 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
Page 16 of 16
Drawing : - TPC142
Issue : - 4
Date : - 24/11/16
UK Head Office
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
American Sales Office
Ebac Industrial Products Inc
700 Thimble Shoals Blvd.
Suite 109, Newport News
Virginia, 23606-2575
USA
Tel: +01 757 873 6800
Fax: +01 757 873 3632
www.ebacusa.com
Ger
man Sales Office
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
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