The Compressor; Extra Control Options; Hygrostat; Room Thermostat - Dantherm CDP 75 Mode D'emploi

4.5 The compressor

The number of compressor startings is limited by a 6 minutes timer, which starts up when switching on the
compressor. The timer must have come to an end before the compressor can be switched on again.
The control system of the unit has a time delay of 30 seconds. This means that each time the unit has been switched
off on the main switch or on the hygrostat, it will take 30 seconds before the unit can be switched on again. This is
a safety function protecting the compressor against overloading caused by too high pressure in the cooling circuit at
the start-up.

5. Extra control options

5.1 Hygrostat

The control is prepared for connection of a hygrostat which is placed in the room to be dehumidified or in the
supply air duct – (air inlet). The hygrostat is connected to the terminals 3 and 4 after having taken away the bridge.
The hygrostat outlet is 12 V.

5.2 Room thermostat

The control is prepared for connection of a room thermostat to be placed in the pool room hall or in the air
discharge duct. The thermostat is connected to the terminals 5 and 6 after having taken away the bridge. The
thermostat outlet is 12 V.

5.3 Defrosting

If the CDP 75/125/165 are used in the temperature range between 15 and 20°C the evaporator coil should be
protected by a sensor. When the defrosting sensor registers a temperature below 5°C, the control interprets this as ice
building up on the evaporator coil and lets the unit run for another 30 minutes. Then the compressor stops and the fan
leads the room air over the evaporator coil until the defrosting sensor registers that the temperature has reached 5°C.
This defrosting process is called passive, demands-related defrosting, as it only takes place when needed.
The defrosting sensor is supplied on demand as an extra accesory. A mounting instruction follows the defrosting
sensor.

6. Maintenance and service

6.1 Cleaning the filter

Once a month the inlet air filter should be inspected and if necessary cleaned. This is done by opening the
inspection door, taking out the filter frame and removing the filter.
The filter should be cleaned in luke-warm soapy water, or if only slightly soiled, with a vacuum-cleaner. It should
then be replaced in its frame which can then be pushed back into the unit.

6.2 Cleaning the dehumidifier

Once a year the interior of the unit should be checked for cleanliness. Open the inspection door and remove the
front cover panel. If the unit is dirty, it may be cleaned with a vacuum cleaner. Especially the condenser and the fan
rotor in particular should be thoroughly vacuum-cleaned. If the lamella evaporator is badly soiled, it may be
washed in luke-warm soapy water.
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