/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
EBAC MODEL SPP6A
DEHUMIDIFIER
OWNER’S MANUAL
Ebac Industrial Products
704 Middle Ground Boulevard
Newport News, VA 23606
Tel: 757 873 6800 Fax: 757 873 3632
Website: www.ebacusa.com
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
UNPACKING
Carefully remove the SPP6A 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.
A dehumidifier consists of a motor-compressor unit, a refrigerant condenser, an air circulating
fan, a refrigerated surface, a means of collecting and disposing the condensed moisture and a
cabinet to house these components.
The fan draws air through the refrigerated surface and cools it below its dew point, removing
moisture which is collected and led 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 SPP6A Dehumidifier is a robust, compact unit designed to control the humidity in the
enclosed space in which it is placed.
The unit is thermally protected and will switch off for a period if the maximum operating
temperature of 50ºC is exceeded.
The SPP6A has been designed for the exacting conditions which can prevail in the medium to
long term storage of mobile shelters and vehicles. It combines lightness and compactness with
high reliability and strength.
Handles contribute to its portability.
A Dehumidifier stand (Part Number 1137500) is available to provide both a level platform and
an easy working height for the operational personnel.
The gas which is used inside the hermetically sealed refrigeration circuit is R134A, which
contains no chics and has therefore a zero ozone depletion factor.
BUT under no circumstances should this gas be released into the atmosphere, the unit should be
serviced by trained personnel who will re-claim any of the unwanted gas.
SPP6A OWNERS MANUAL
/10/
MODEL:
LENGTH:
WIDTH:
HEIGHT:
WEIGHT:
PAINT FINISH:
POWER SUPPLY:
POWER RATING:
AIRFLOW:
CONSTRUCTION:
PORTABILITY:
POWER CABLE LENGTH:
WATER DRAINAGE:
LENGTH:
WIDTH:
DEPTH:
3 NEON INDICATING LAMPS
CONSTRUCTION:
WATER EXTRACTION DUTY
TEMPERATURE
ºC
0 70 0.6
10 70 1.8
20 70 3.5
30 70 5.2
40 70 7.0
55 40 7.0
44 95 12.0
SPECIFICATIONS
SPP6A
447mm
340mm
255mm
28 Kg (Typically)
Light Grey
115v ± 10%, 1 ph / 60Hz
250-300W
250 M3/HR
Welded 1.2m steel chassis
and covers
Two folding carrying
handles.
10 Meters
12mm outlet spigot
MONITOR BOX
120mm
80mm
55mm
ABS/ Polycarbonate enclosure
designed in accordance with IP65
standards.
HUMIDITY % WATER EXTRACTION
L/24HR
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
INSTALLATION
POSITIONING:
Position the dehumidifier unit in the center of the room to be conditioned if at all possible.
However if a damp patch is particularly apparent the outlet grille should be directed towards it.
NOTE: Both inlet grille 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 unit to a 15 Amp power supply. As
follows:-
115 Volt Supply
Brown Live
Blue Neutral
Green/Yellow Earth (ground)
DRAINAGE:
Connect a 12.5mm inside diameter hose to the condensate outlet pipe (positioned centrally,
beneath the air inlet grille). Secure the hose using a worm drive clip. The hose should at no point
be raised higher than the outlet pipe. Failure to observe this requirement will result in flooding of
the dehumidifier unit.
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
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 at the rear of the dehumidifier (below the handle) 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. 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.
DEFROST OPERATION:
If the ambient temperature of the room in which the dehumidifier unit is conditioning falls below
15ºC 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 unit, on its ability to maintain the
required set conditions for the room.
The SPP6A is therefore fitted with a defrost control device. This defrost control device is timed
to operate every 40mins, at which time, for approximately 8mins 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. The melted ice is
collected and disposed of by means of the condensate tube.
HIGH TEMPERATURE CUTTOUT:
The SPP6A dehumidifier has been designed to work in ambient conditions of 10ºC and 50ºC.
Should the temperature in the room become excessive a thermostat within the compressor casing
will open and dehumidifying will stop, until the thermostat resets itself.
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.
SPECIAL FEATURES
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
CONTROL AND WARNING INDICATOR HUMIDISTAT
The SPP6A dehumidifier unit is fitted with a control panel fixed to the outside of the
dehumidifier cabinet, the panel incorporates two humidities, which measure the relative
humidity of the air within the room/space. The first humidistat incorporates a pointer and a scale,
and is adjustable to a set point.
The second humidistat has no pointer or scale, and is pre-set and fixed at the factory at the
customers requested set point.
FIRST HUMIDISTAT
The humidistat controls the on/off function of the dehumidifier unit, when the relative humidity
of the air in the room/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/space rises above the set
point of the humidistat the dehumidifier unit will switch on.
SECOND HUMIDISTAT
This humidistat which is factory pre-set at 60%RH is connected to a warning indicating system.
This warning indicating system will be monitored by the customer and will indicate that the
relative humidity of the air within the room has risen above the pre-set 60%RH level due to a
fault, either with the dehumidifier unit or due to some other circumstance and requires attention
of a service engineer.
TEMPERATURE CONTROLLED DEFROST
The SPP6A dehumidifier unit is fitted with temperature sensitive device which will operate in
conjunction with the defrost control. In normal operation the defrost control will come into
operation every 40 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 operates at
its most efficient this temperature sensitive device will restrict the defrost operation to the times
when the evaporator coil is at -2ºC.
INDICATOR BOX
The indicator box, which is sealed against water ingress, is connected to the dehumidifier in the
mains input cable, it has three indicating lamps mounted under a transparent front panel.
AMBER LAMP
SPP6A OWNERS MANUAL
/10/
This indicates that the dehumidifier unit is in stand by mode ( the relative humidity within the
room/space is below the set point of the Control humidistat) and mains power is applied.
GREEN LAMP
This indicates that the dehumidifier unit is operating (the relative humidity within the
room/space is above the set point of the Control humidistat). The relative humidity above which
the dehumidifier unit will operate can be set by adjusting the humidistat knob, which is
positioned on the inside of the dehumidifier unit.
RED LAMP
This indicates that the relative humidity within the room/space has risen above the pre-set 60%
RH of the second humidistat and requires attention of a service engineer.
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
ROUTINE MAINTENANCE
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
WARNING: ENSURE THAT THE POWER CORD TO THE MACHINE
HAS BEEN DISCONNECTED BEFORE CARRYING OUT
ROUTINE MAINTENANCE ON ITEMS 1, 2, 4, 5, AND 6.
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.
WARNING: DO NOT STEAM CLEAN REFRIGERATION 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 bypass valve may be inoperable.
I
F ANY OF THE PRECEDING PROBLEMS OCCUR, CONTACT THE EBAC SERVICE CENTER PRIOR TO
CONTINUED OPERATION OF THE UNIT TO PREVENT PERMANENT DAMAGE
.
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
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
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.
EVER allow
SPP6A OWNERS MANUAL
/10/
SYMPTOM CAUSE
1. Loose fan on shaft
2. Fan motor burnt out
Little or no airflow
Little or no dehumidifying
effect
3. Dirty refrigeration coils
4. Loose electrical wiring
5. Control humidistat either set too
high or malfunctioning
1. Insufficient air movement
2. Compressor not running: a) No power supply to compressor
b) Compressor tripped on internal
overload – allow reset time of two
hours
c) Compressor burnt out
d) Loss of refrigerant (resulting in
hot compressor)
e) Humidistat either set too high or
malfunctionin g
f) Blocked filter dryer
Tel: 757 873 6800 Fax: 757 873 3632
TROUBLESHOOTING
R
1. Tighten fan
2. Replace the fan motor
3. See Routine Maintenance Section
4. Check the wiring diagram to find
fault and repair
5. Contact the Factory Service Center
1. Check all of the above
2. Contact the Factory Service Center
Ebac Industrial Products
704 Middle Ground Boulevard
Newport News, VA 23606
Website: www.ebacusa.com
EMEDY
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
SPP6A OWNERS MANUAL
/10/
Drawing No. :- TPC180
Issue :- 2
Date :- 07
03
SPP6A
SPARE PARTS LIST
DESCRIPTION
PART NUMBERS
1139800
Compressor 3022143
Compressor OH Protector 3021538
Comp Relay 3021528
Comp Box Cover 3021518
Condenser Coil 3020740
Evaporator Coil 1135707
Filter Dryer 3020937
Fan Motor 3035767
Fan Blade 3040101
Drain Tube 3014338
Worm Drive Clip 3086101
Clip Nut 3080501
Control Humidistat 3031528
Indicator Humidistat 2135727
Male Contacts 3033814
Male insert 3033809
Indicator Box 1135710
Cable Gland 3032511
Cable Gland Nut 3032512
Hood 3033811
Female Insert 3033810
Cable Seal 3033813
Indicator Housing 2135713
Female Contact 3033815
Green Neon 3036637
Red Neon 3036636
Mains Cable 3031225
Control Cable 3031227
Bypass Valve 3020811
Solenoid Coil 3030421
Frostat 3031516
Timer 1618200
PCB Mounting Clips 3101413
SPP6A OWNERS MANUAL
Loading...