Clarke CONTRACTOR IDH50L Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
DL0422 Iss 1
50L INDUSTRIAL DEHUMIDIFIER
MODEL NO: IDH50L
PART NO: 6470611

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INTRODUCTION
Thank you for purchasing this CLARKE 50 Litre Industrial Dehumidifier.
Before attempting to use this product, please read this manual thoroughly and
follow the instructions carefully. In doing so you will ensure the safety of yourself
and that of others around you, and you can look forward to your purchase
giving you long and satisfactory service.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
ENVIRONMENTAL RECYCLING POLICY
Recycle unwanted materials instead of disposing of them as waste.
All unwanted accessories and packaging should be sorted and
taken to a recycling centre for disposal in a manner which is
compatible with the environment.
By purchasing this product, the customer is taking on the obligation
to deal with its safe disposal in accordance with the Waste Electrical
and Electronic Equipment regulations (WEEE).
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.
R290 is a refrigerant that complies with EEC environmental standards;
nonetheless, the refrigerant circuit on the machine should not be punctured.
At the end of its working life, consign the dehumidifier unit to a special
collection centre.

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ELECTRICAL CONNECTIONS
Before switching the product on, make sure that the voltage of your electricity
supply is the same as that indicated on the rating plate. This product is
designed to operate on 230VAC 50Hz. Connecting it to any other power
source may cause damage.
This product may be fitted with a non-rewireable plug. If it is necessary to
change the fuse in the plug, the fuse cover must be refitted. If the fuse cover
becomes lost or damaged, the plug must not be used until a suitable
replacement is obtained.
If the plug has to be changed because it is not suitable for your socket, or due
to damage, it should be cut off and a replacement fitted, following the wiring
instructions shown below. The old plug must be disposed of safely, as insertion
we would emphasise the electrical hazard.
•TheBLUE wire must be
connected to the
terminal marked N or
coloured black.
•TheBROWN wire must
be connected to the
terminal marked L or
coloured red.
•TheYELLOW AND
GREEN wire must be
connected to the
terminal marked E
or or coloured green.
We strongly recommend that this machine is connected to the mains supply
via a Residual Current Device (RCD).
If in any doubt, consult a qualified electrician. DO NOT attempt any repairs
yourself.
WARNING! READ THESE ELECTRICAL SAFETY INSTRUCTIONS
THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE
MAINS SUPPLY.
WARNING: THE 3 CORE WIRE IN THE MAINS LEAD IS COLOURED IN
ACCORDANCE WITH THE FOLLOWING CODE:
GREEN/YELLOW = EARTH, BLUE = NEUTRAL, BROWN = LIVE.
Plug must be BS1363/A approved.
Always fit
Ensure that the outer sheath of
Neutral
(Blue)
Live
(Brown)
Earth
(Green and
a 13 Amp
the cable is firmly held by the clamp
fuse.
Yellow)

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OVERVIEW
Contents List: 1 x 50L Dehumidifier, 2 x Wheels, 1 x Wheel Axle Rod (Inc: Nuts &
Washers), 4 x Axle Fixing Screws, 1 x Drainage Pipe
No. Description
1Handle
2 Control Panel
3 2 x Wheels
4 Continuous Drainage Pipe Outlet Hole
52xFeet
6 5 Litre Internal Water Tank
7 Air Inlet and Filter
8 Air Filter Pull Tab

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SAFETY WARNINGS
1. Please read these instructions carefully and retain for future reference.
2. Position the mains cable so that it cannot be inadvertently pulled or
pinched and where it does not cause a trip hazard.
3. This appliance is designed to dehumidify industrial environments and MUST
NOT be used for other purposes.
4. If the appliance requires repair, ALWAYS contact your CLARKE dealer.
ALWAYS insist on original spare parts. Repairs carried out by unauthorized
persons may be dangerous and invalidate the guarantee.
5. Children SHOULD NOT play with the appliance. Cleaning and user
maintenance SHOULD NOT be undertaken by children.
6. Before cleaning or maintenance operations, ALWAYS unplug the appliance
from the power supply.
7. DO NOT move the appliance by pulling the power cable.
8. DO NOT install the appliance in rooms containing gas, oil or fuel.
9. DO NOT install near sources of heat.
10. DO NOT use the appliance on inclined surfaces.
11. Keep the appliance away from inflammable substances (alcohol etc) or
pressurised containers (e.g. aerosol cans).
12. DO NOT rest heavy or hot objects on top of the appliance.
13. ALWAYS transport the appliance upright. Wait at least 1 hour after
transporting the appliance before using it to allow the refrigerant gasses to
settle.
14. DO NOT use the appliance outdoors.
15. DO NOT obstruct the air inlet or outlet.
16. DO NOT use means to accelerate the defrosting process or to clean, other
than those recommended in this manual.
17. DO NOT store in a room continuously operating ignition sources like open
flames, operating gas appliance or electric heater.
18. DO NOT cover the dehumidifier when in use. Place at least 50cm (100cm
from front) from walls, doors, windows or obstructions.
WARNING: IF THE SUPPLY CABLE IS DAMAGED, IT MUST BE REPLACED BY
THE MANUFACTURER, ITS SERVICE AGENT OR SIMILARLY QUALIFIED
PERSONS IN ORDER TO AVOID A HAZARD.

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R290 REFRIGERANT GAS (HYDROCARBON PROPANE)
H220: Extremely Flammable Gas.
H280: Contains Gas Under Pressure, May Explode if Heated.
R290 refrigerant gas complies with UK & European environmental
directives.
R290 has a low GWP (Global Warming Potential) of 3 and CO2
equivalent to 0.0006t.
The dehumidifier contains approximately 200g of R290 refrigerant gas. The
refrigerant system MUST NOT be perforated or punctured.
•DO NOT use or store in an unventilated space with an area smaller than
4m² per unit. The room must be such as to prevent stagnation of possible
leaks of refrigerant gas as there could be a danger of fire or explosion
hazard should the refrigerant come into contact with electric heaters,
stoves or other sources of ignition.
• Refrigerant gas may be odourless.
•DO NOT use the product and contact the retailer for advice if damage
has occurred to the unit which may have compromised the refrigerant
system.
• Any repairs or maintenance must only be carried out on the unit by a
suitably qualified engineer. Before opening and servicing the unit, the
authorized engineer must be in possession of a copy of the
manufacturer's service manual and must follow the safety information
contained within it to ensure all hazards are minimized.
WARNING: DO NOT USE OR STORE THE DEHUMIDIFIER NEAR A HEAT
SOURCE, AS THE UNIT CONTAINS PRESSURISED FLAMMABLE REFRIGERANT
GAS (R290-HYDROCARBON PROPANE)

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SAFETY SYMBOLS
TECHNICAL SPECIFICATION
Read the manual
and safety
instructions before
use
Do not cover when
in use
Indoor use only Warning: Risk of Fire,
Flammable Gas
(R290)
Power Source AC 230V 50Hz
Input Current @ Rated Load 4.0A @ 30oC RH 80%, 3.4A @ 27oC RH 60%
Power 900W @ 30oC RH 80%, 750W @ 27oC RH 60%
IP Rating IP22
Dehumidifying Extraction Rate 50 litres/day @ 30oC RH 80%
30 litres/day @ 27oC RH 60%
Max. Suction Pressure 1.0Mpa
Max. Discharge Pressure 2.5Mpa
Max. Air Flow Rate 300m3/h
Working Space 50 - 120m3
Water Tank 7 litre tank with 5 litre capacity
Operating Temperature 5oC - 35oC
Refrigerant 200g of R290 (Hydrocarbon Propane)
Weight 31kg
Dimensions (DxWxH) Handle Down: 480mm x 450mm x 655mm
Handle Up: 480mm x 450mm x 900mm

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ASSEMBLY
HANDLE
1. Place the machine in the
upright position, Lift the
handle on the rear of the
machine by 180 degrees to
the upright position.
2. Secure the handle in
position using the fixing
screws provided.
WHEELS
1. Incline the machine body, as shown, and fix the wheel axle on the bottom
of the machine body using the 4 screws.
2. Using the nuts and washers, fix the wheels to the axle rod.
3. Once the wheels have been installed, place the machine in the upright
position.
NOTE: Once assembly is complete, leave the machine to stand for a
minimum of 1 hour, this is for the refrigeration gases to settle
before use.

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OPERATION
CONTROL PANEL
No. Description No. Description
1Timer 7Subtract
2 Temperature 8 Add
3 Dehumidification 9 Full Water Tank
4 Humidity 10 Air Speed
5 Power 11 Defrosting
6TimerSet
Button Operation Instructions
On/Off (Button 5) Switches the machine On and Off
+ (Button 8) Adjusts different set values in different states:
1: Increases the humidity value set (RH 10% to 95%)
2: Increases the timing (Hours) set (00 to 24)
- (Button 7) Adjusts different set values in different states:
1: Decreases the humidity value set (RH 10% to 95%)
2: Decreases the timing (Hours) set (00 to 24)
Timer (Button 6) Short press the button to launch a cycle to Off.
Set On/Off timer and exit

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WATER TANK & CONTINUOUS DRAINING
This machine has a 7 litre internal water tank. When the water tank is full, the
machine will automatically shutdown at 5 litres and enter standby mode, on
the LED display the ‘Full Water Tank’ will light up and an alarm will sound.
TO EMPTY THE TANK
1. Open the water tank door at the
front of the machine.
2. Pull water tank out of the holding
clips and empty.
3. Replace the water tank back in
the holding clips and close the
door.
NOTE: The water tank full alarm will
continually sound when the tank is removed and will not turn off
until the tank is empty and correctly seated back in the machine.
PREPARATION FOR CONTINUOUS DRAINING
An external drainage pipe enables continuous dehumidifying without having
to empty the water tank.
1. Extract the water tank
from the machine
and remove the plug
from the water tank
spout.
2. Locate the external
drainage pipe and
feed it through the
drainage pipe outlet
hole on the side of the
machine.
3. Place the end of the pipe onto
the water tank spout and replace
the tank back in the machine.
4. Place the external end of the
pipe into a suitable receptacle/
drain ensuring that the end of the
pipe is below the level of the
outlet in the unit body.
NOTE: If using a receptacle, make
sure it is large enough as the
machine can produce up to 50 litres of water in a 24 hour period.

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NOTE: The pipe has an internal diameter of 13mm and is 100cm long.
NOTE: DO NOT submerge the end of the pipe in water, as this may cause
water to be drawn back up into the machine.
TIMING AND ON/OFF FUNCTION
Setting the timer for both powering on and off will initiate the cycle timer
mode.
SETTING OF TIMER - POWER ON
1. When the machine is powered off, press the “Timing” button.
2. The “Timing On” icon will flicker and the time set will flicker on the display
screen.
3. Press the “+” or “-” buttons to adjust the timing. The dehumidifier will make
a sound once the button is pressed. The time set will increase or decrease
by “1”, holding the button for 2 seconds will continually increase or
decrease the time.
4. Once the required time is set, non-action of the buttons for 10 seconds the
dehumidifier will accept the new setting and the “Timing On” icon will
flicker (Ranging from 0 to 24 hours, and 0 hours as default).
SETTING OF TIMER - POWER OFF
1. When the machine is powered on, press the “Timing” button.
2. The “Timing Off” icon will flicker and the time set will flicker on the display
screen.
3. Press the “+” or “-” buttons to adjust the timing. The dehumidifier will make
a sound once the button is pressed. The time set will increase or decrease
by “1”, holding the button for 2 seconds will continually increase or
decrease the time.
4. Once the required time is set, non-action of the buttons for 10 seconds the
dehumidifier will accept the new setting and the “Timing Off” icon will
flicker (Ranging from 0 to 24 hours, and 0 hours as default).
HUMIDITY CONTROL
• When the rooms humidity value is 3% lower than the set humidity on the
machine, the compressor will shut down, the fan will delay shut down for
3 minutes and then shut down; and when it is 3% higher than the
humidity value set on the machine, both the fan and compressor will
start to operate.
• When the humidity is set at the minimum value (10%), the machines
default will enter the continuous dehumidifying mode.

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• When started, the compressor will start 3 seconds later and when it is
shut down, the fan will run for 3 seconds.
• If a fault of the humidity sensor occurs, the machine will turn to the
continuous dehumidifying mode.
• If a fault of the coil sensor occurs, the machine will turn to the timing
defrosting mode (See Defrosting Mode).
PROTECTION FUNCTION
• Once shut down, the compressor will take 3 minutes to restart. Quick
start is available for the first power-on.
•Power off memory: For abrupt power outage or accidental unplugging,
the machine will automatically return to the operating state right before
the ‘incident’, and continue at that state for the next power-on.
DEFROSTING MODE
Defrosting
Mode Description
Automatic
Defrosting
Sensor at Normal State 1: It enters this mode when the
compressor runs constantly for 30
minutes and the coil temperature is
tested to be < or = 1oC.
2: In defrosting, the compressor stops
running, the fan continues running
and the defrost light is on.
Timing
Defrosting
In this mode, the machine will defrost for 8 minutes and then
switch to standby mode.

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MAINTENANCE
CLEANING THE CABINET
• Use a soft damp cloth to clean the exterior.
• Never use harsh chemicals or abrasive cleaning agents as these may
damage the casing finish.
• Clean the water tank and its cover regularly to prevent mould build up.
CLEANING THE AIR FILTER
1. At the front of the machine, pull the filter
upwards and out, using the tab.
2. Wash the filter under running water to
remove any dust and dirt.
3. Allow the filter to dry naturally.
4. Refitting is the reverse process.
NOTE: The frequency depends on the
duration and the level of dust in
the environment. If the machine is
being used regularly, it is
recommended that you clean the
filter every 2 weeks.
STORAGE
• Unplug from the mains socket.
• Empty any water from the tank.
• Clean and reinstall the filter.
• Cover the dehumidifier to prevent dust getting into the workings.
WARNING: ALWAYS UNPLUG THE DEHUMIDIFIER BEFORE PERFORMING
ANY CLEANING OR MAINTENANCE OPERATIONS.

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TROUBLESHOOTING
Cause Solution
No operation
(Shown as no
power)
Power outage Check if the power supply is in
working order.
Confirm the plug is correctly
inserted in the power socket.
Fuse in plug or fuse board
blown
Replace the relevant fuse.
No operation
(Shown as
power on)
Environmental humidity
lower than the set value
Reset humidity setting
according to the demand.
The machine is defrosting Wait for defrosting to complete.
Dehumidifier
function not
effective
If a door or window are
open
Close the door or window.
Room temperature is too
low
Do not use the dehumidifier.
Room temperature too
high, humidity too low.
In dry conditions the
dehumidification ability will
reduce.
Air filter blocked. Remove any dirt or obstruction
from the air intake.
Noise is
abnormal
during
operation
Dehumidifier is positioned
incorrectly.
Check that dehumidifier is
placed on a flat level surface.
Air filter blocked. Remove any dirt or obstruction
from the air intake.
There is a ‘tittering’ sound. This is the flow of the refrigerant,
which is a normal
phenomenon.
Water Leak Connection of drainage
pipe become loose.
Check pipe connection.
Drainage system is
blocked.
Remove obstacle and
straighten out drainage pipe.
Frosting Occurs The ambient temperature is
low and the machine is
waiting for defrost.
This is a normal phenomenon
and the dehumidifier has an
automatic defrost function.

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DISPLAY CODES
ELECTRICAL DIAGRAM
Display Code Instruction Action
E1 Fault with coil sensor See Defrosting Mode.
E2/E3 Fault with humidity and/or
temperature sensor
Replace temperature
and humidity sensor.
EE Refrigerant leakage Contact CLARKE service
department if EE signal
remains.

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COMPONENT PARTS DIAGRAM

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COMPONENT PARTS LIST
No Description No Description
1 Handle 34 Water Tank Bracket
2 4 x Bolt & Nut, M6 x 35 35 Control Box
3 Handle Bracket 36 Power Strip
4 Back Cover 37 Fan Motor Capacitor
5 Discharge Pipe 38 Control Box Side Plate
6SuctionPipe 39WaterTankBracket
7 Control Panel Label 40 Water Tank Support Plate
8 Control Panel 41 Main Body Base Plate
9 Control Panel Holder 42 Foot Bracket
10 Main Body Shell 43 Foot Pad
11 Motor Bracket 44 Wheel Axle, 16mm x 462mm
12 220V/50Hz Fan Motor 45 Wheel
13 250mm Fan Blade 46 Foot Rest
14 Partition Plate 47 Compressor Capacitor
15 Condenser 48 Compressor Bolt, M8 x 40
16 Evaporator 49 Compressor Mat
17 Bracing Rod 50 Compressor
18 Sensor Bracket 51 Power Cable
19 Temp. & Humidity Sensor 52 Power Cable Storage Clip
20 Sensor Cover
21 Air Filter
22 Front Cover Bracket
23 Front Cover/Grill
24 Water Tank Door
25 Door Hinge
26 Door Bracket
27 Water Drip Pan
28 Water Level Switch
29 Water Tank
30 Magnetron Switch
31 Magnetron Switch Holder
32 Water Level Switch Bracket
33 Water Tank Plug

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DECLARATION OF CONFORMITY - UKCA

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DECLARATION OF CONFORMITY - CE