CDF 10 - Dehumidifier Dantherm - Free user manual and instructions

USER MANUAL CDF 10 Dantherm

WARNING It is the responsibility of the operator to read and understand this service manual and other information provided, and to use the correct operating procedures.

Read the entire manual before the initial start -up of the dehumidifier. It is important to know the correct operating procedures for the unit and all safety precautions to prevent the possibility of property damage and/or personal injury.

Table of contents This service manual covers the following main topics:

Product- and functional description

Mounting and installation

Introduction This section gives the general information about this service manual and about the unit.

Manual, part num- ber Part number of this service manual is 975677.

Target group The target group for this service manual is the technicians who install, maintain, and exchange parts on the unit.

Copyright Copying of this service manual, or part of it, is forbidden without prior written permis- sion from Dantherm A/S.

Reservations Dantherm A/S reserves the right to make changes and improvements to the product and the service manual at any time without prior notice or obligation.

EC-Declaration of Conformity Dantherm A/S, Marienlystvej 65, DK-7800 Skive hereby declare that the unit mentioned below:

Dehumidifier, model CDF 10, product no. 351612: covered by this declaration, is in conformity with the following directives:

89/392/EEC Directive on the Safety of Machines 73/23/EEC Low Voltage Directive 89/336/EEC EMC Directive

and is manufactured in conformity with the following standards: EN 60 335-2-40 Standard for electric dehumidifiers EN 292 Machine safety EN 50081-1 EMC Generic standard for emission EN 50082-1 EMC Generic standard for immunity

Recycling The unit is designed to last for many years. When the time comes for the unit to be re- cycled, the unit should be recycled according to national rules and procedures to pro- tect the environment.

The dehumidifier contains R134a refrigerant and compressor oil. The compressor must in connection with disposal be returned to authorities.16 Product- and functional description

Introduction This section will give you a description of the CDF 10 and its functionality.

Description of function CDF 10 is working in accordance with the condensation principle. The humid air is drawn into the unit by a fan. When passing through the evaporator the air is cooled down to below dew point and water vapor is condensed into water, which is drained away. The now dry air is then passed over the condenser coil where the air is heated. As a result of the released evaporator heat and the working energy of the compressor be- ing turned into heat energy, more heat is returned to the air than was previously ex- tracted. This extra heat corresponds to an approximate increase in temperature of 5 °C. The repeated circulation of air through the unit reduces the relative humidity, giving very rapid but gentle drying.

Air flow The following illustrates the air flow:17 975677 • Version 2.9- 23122016 Built-in hygrostat The dehumidifier is controlled by a built -in hygrostat that is set to approx. 60 % RH. When the hy- grostat registers a relative hu- midity of more than 60 %RH, the compressor and the fan automat- ically switch on and the dehu- midifier starts t o dehumidify. The front panel has to be removed before adjusting the hygrostat. The hygrostat is located under the control box and can be adjusted by turning the set screw.

Continued overleaf18 Product- and functional description, continued

Built-in hygrostat, continued OBS! If the air humidity is below 60 %RH, the unit will not start when the power is con- nected. If you want to set the hygrostat at a lower relative humidity than 60 % the set screw has to be turned clockwise. We recommend installing an external hygrostat if you want to change/adjust the setting of relative humidity very often.

LED indica- tion/switch The LED on the front of the unit is green when the compressor is operating, and the unit dehumidifies.

The dehumidifier is switched on and off by the switch on the side.

Note! Any stop of the unit – either caused by failing power connection, by the switch on the side of the unit, by the hygrostat, or by the water tank's water stop func- tion - will make the electronic control put off re-start for 45 seconds in order to protect the compressor from being switched on and off repeatedly.

Compressor control At compressor start, the solenoid valve opens up for at least 10 sec. in order to relieve the pressure on the compressor starting circuit.

Any stop of the unit – either caused by failing power connection, by the switch on the side of the unit, by the hygrostat, or by the water tank's water stop function - will make the electronic control put off re

start for 45 seconds in order to protect the compressor from being switched on and off repeatedly.

Defrosting If the temperature falls to below 20 °C the evaporator may start to ice up after a short time. The defrosting function is activated when the evaporator sensor registers a temperature lower than 5 °C, after which the control will let the unit operate in dehumidification mode for another 44 minutes. Then the fan is stopped, hot refrigerant is bypassed the condenser and is finally led through the evaporator where it melts the ice. When the evaporator sensor registers that the temperature is above 5 °C, the fan starts again.

Safety circuit If the temperature on the condenser coil increases to a temperature of more than 55 °C (for example in case of fan failure), the compressor is stopped automatically to avoid any damage. After 44 minutes the comp ressor starts again automatically. At room temperatures lower than 3 °C and higher than 30 °C the unit is automatically switched off to protect the cooling plant against icing up or superheating. When the temperature is higher than 3 °C or lower than 30 °C the dehumidifier will automatically start again. The temperature is registered by a sensor on the PCB.

Water tank If it is not possible to mount a fixed or a flexible drain outlet connection, the CDF 10 can be used with a water tank.

If the CDF 10 is used with a water tank, it switches off automatically when the water tank is full. A re d LED on the front panel flashes when the water tank needs to be emptied. The water tank is an extra accessory for the CDF 10 and is available on demand.

The water tank consists of the following parts:

• Water tank cabinet with magnetic switch for water stop and cable for connection to PCB

4 machine screws19 975677 • Version 2.9- 23122016 Mounting and installation

Suspension The wall suspension bar supplied with the unit is fixed to the wall and the dehumidifier is hung up on it. It is important to mount the unit in a horizontal position to secure cor- rect outflow of the condensate water.

The dehumidifier must be placed in a way that allows unimpeded air intake through the front and outlet through the grill on the sides. Be sure always to leave at least 100 mm free space around the unit for optimum operation. It is important that the dehumidifier is not installed near a source of heat as for exam- ple a radiator, and doors and windows must be kept closed when the dehumidifier is in function.

Installation of the water tank

1. Place the CDF 10 on the wall by means of the wall suspension bar.

2. Then dismantle the front panel of the CDF 10.

3. Fix the water container cabinet by 4 machine screws under the bottom of the

4. Take the supply cable through the diaphragm bush at the bottom of the water

5. The control of the CDF 10 is placed in a box behind the front panel. To get ac-

cess to the control, unscrew the 4 screws on the sides of the box and remove the box lid.

6. Take the cable from the magnetic switch through the diaphragm bush at the

bottom of the CDF 10 and connect it to the terminal strip on the PCB – terminal points 13/14 (WATER SW).

7. Remount the control box lid and the front panel.

Place the water tank in the water tank cabinet. The float must be turned to- wards the magnetic switch.

Drawing The water tank is mounted beneath the CDF 10 as shown on the drawing:

Continued overleaf20 Mounting and installation, continued

Note On the rear of the unit a cable binder protects the compressor during transport. This cable binder must be removed before suspension and power connection

Condensate outlet The condensate outlet is located at the bottom of the dehumidifier. The unit has a drain spigot intended for connection of a ½’’ flexible or fixed water connection. If water drain through the wall is chosen, a suitable hole is made in the wall and the condensate hose is led out through this hole, before suspending the dehumidifier on the wall suspension bar.

As an alternative a condensate pump can be fitted at the water outlet to pump the water to a drain.

Placing of the condensate outlet The placing of the condensate out- let is shown on the drawing:

Connection of power supply The unit is delivered complete with cable and plug for connection to 230V/50Hz. Power is connected to the unit in accordance with the nameplate. Please refer to the wiring diagram on page

Note: All electrical connections must be made in accordance with local power supply.21 975677 • Version 2.9- 23122016 Service guide

Access to the control Remove the front panel by unscrewing the two screws on the top of the dehumidifier. Lift the front panel vertically upwards and then pull it horizontally away from the unit.

The control of the unit is located in a box behind the front panel. To get access to the control unscrew the 4 screws on the sides.

Maintenance The dehumidifier requires very little attention for trouble free running. All the necessary safety and control functions have been built in. The fan motor and the compressor have permanent lubrication and require no particular maintenance.

Once a month Once a year Once a month the air inlet filter should be checked and cleaned if necessary. The front cover panel is removed and the filter taken out. Clean the filter in tepid soapy water or if not badly soiled by vacuum cleaning Once a year the front cover panel should be removed in order to check the inside of the dehumidifier. If the dehumidifier is dirty it should be cleaned by vacuum cleaning. The condenser in particular should be thoroughly vacuumed. If the tube evaporator is badly soiled, it may be washed in tepid soapy water22 Fault finding guide

Note! If the dehumidifier is not functioning correctly, shut it down immediately

Fault finding Use this table to localize and solve a possible problem or fault:

Fault Solution The dehumidifier does not start when power is connected

• Check external fuses

• Check that the power supply to the units is correct

• Check that the switch on the side is ON

• Check the built-in hygrostat by setting it on a lower rela- tive humidity. This is done by turning the hygrostat knob clockwise. If the unit does not start, check the built-in hygrostat for faults The unit was switched off automatically If it starts after 44 minutes, but switches off again shortly af- terwards, check the following:

• Check that the fan is running when the unit starts after 44 minutes

• Check whether the condenser coil is dirty

• Check whether the filter is dirty

• Check whether the room temperature is above 30 °C. If the unit has not been switched off automatically at a room temperature above 30 °C, it should be switched off.

• Check that the air inlet on the front and the air outlet through the grill on the sides are not blocked. The evaporator coil has iced up and the unit does not separate water

• Check whether the room temperature is below 3 °C. If so, and the unit has not automatically been switched off, it should be switched off.

• Check that the air inlet on the front and the air outlet through the grill on the sides are not blocked The LED on the front panel flashes in red and the water tank is empty

• Check that the float is lying loose in the water tank and that it can move freely up and down. Check that the float is not damaged The water tank is full and yet the dehumidi- fier is not switched off

• Check that the water tank is placed in the water tank cab- inet and that the float is turned towards the magnetic switch

• Check that the float is lying loose in the water tank and that it can move freely up and down. Check that the float is not damaged

More help If you cannot find the reason for the fault, switch off the unit immediately in order to prevent further damage. Contact a service technician or a Dantherm representative.23 975677 • Version 2.9- 23122016 Technical data

3-30 Power supply V/Hz 230/50 Max. ampere consumption

R134a Quantity of refrigerant

Sound level (1 m away from unit) dB(A)

Dimensions – H x L x W

Please delete this sentence - Client's instructions. Please delete this sentence - Client's instructions.69 975677 • Version 2.9- 23122016 Producto y descripción funcional

The front panel has to be re- moved before adjusting the hy- grostat. The hygrostat is located under the control box and can be adjusted by turning the set screw.

The front panel has to be re- moved before adjusting the hy- grostat. The hygrostat is located under the control box and can be adjusted by turning the set screw.

Product- and functional description

Mounting and installation

Printkort Printed circuit board

Spole for magnetventil Coil for solenoid valve

Skilt – Dantherm logo Label – Dantherm logo 31b

Kabelforskruning Screwed cable entry

Stopskinne for vandbeholder Stop rail for water container