Dantherm CDT 30S MKII User manual

CDT 30S /40S MKII
Service manual
Rev. 1.6

2
Der tages forbehold for trykfejl og ændringer
Dantherm can accept no responsibility for possible errors and changes
Irrtümer und Änderungen vorbehalten
Dantherm n’assume aucune responsabilité pour erreurs et modifications éventuelles

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070484 • Version 1.6 • 22.02.2016
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Introduction
Overview
Dehumidifiers
This manual concerns Dantherm transportable dehumidifier type:
CDT 30S MK II item number 351190
CDT 40S MK II item number 351192
Warning
Please ensure you read this service manual, and use the correct operating and mainte-
nance procedures.
Read the entire manual before using the dehumidifier. Awareness of the correct operat-
ing procedure for the machine and its safety devices is important, to avoid damage or
injury.
Target group
This manual is intended for users and technicians performing preventive maintenance
and repairs.
Copyright
Copying all or parts of the manual is forbidden without the written consent of Dan-
therm.
Provisos
Dantherm reserves the right to make changes and improvements to the product and in
the service manual at any time, without prior notification or obligation.
Contents
This manual contains the following sections:
Introduction................................................................................................................1
Overview..............................................................................................................1
Setup and user guide ..................................................................................................2
Product and function descriptions ........................................................................2
Preparation and transportation guide ...................................................................5
User guide ...........................................................................................................8
Accessories........................................................................................................14
Service guide ............................................................................................................15
Overview............................................................................................................15
Preventive maintenance......................................................................................16
Troubleshooting ................................................................................................18
Technical data ...................................................................................................19
Dimensions........................................................................................................20
Disposal ............................................................................................................21
Wiring diagram ..................................................................................................22
Spare parts ........................................................................................................23
Index .................................................................................................................26

2
Setup and user guide
Product and function descriptions
Introduction
This section provides a product description of the CDT 30S/40SMKII, plus a description
of its functionality.
How it works
Air flow through the dehumidifier:
How the air changes as it passes
through the dehumidifier:
The fan draws humid air through a fil-
ter inside the dehumidifier.

The air is cooled, causing the moisture
content to condense into drops of wa-
ter, which are collected in the water
container.

The air is reheated using heat from the
dehumidifier's operation (temperature
increase of approx. +5 °C), and the
option of further heating using the in-
tegrated heating element.
As the air is repeatedly circulated through the dehumidifier, its moisture content is re-
peatedly reduced, resulting in rapid, gentle drying. The dehumidifier can run constantly,
or be controlled by a built-in hygrostat.
Illustration
Illustration of dehumidifier:
Rear view
Front view
Continued on next page
Handle
Air intake with PPI filter
behind grille
Air exhaust
Control panel
Type plate behind water container
Water container
Wheel
Power cord
Data socket
remote monitoring

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Product and function descriptions, cont.
Ducting connections
With two hoses (2 x 100 mm dia.) on the exhaust, dry, hot air can be passed under a
surface such as a floor.
Dantherm recommends connection of max. 5 metres of flexible ducting per connection
spigot.
Heating element
CDT 30S/40S has one 1 kW integrated heating element. When the element is active, the
dehumidification process is accelerated. See page 8 of the user guide for heating ele-
ment operation.
Water container
Condensate water is collected in the water container or it can be piped to a drain via a
hose spigot (optional accessory).
The dehumidifier cuts out automatically when the container is full. See the user guide
for emptying the water container. The dehumidifier cannot operate when the container
is removed.
Continued on next page

4
Product and function descriptions, cont.
Control panel
Illustration of control panel:
Functions
Main functions:
Manual or auto (built-in adjustable hygrostat).
External hygrostat socket.
Display of temperature, relative air humidity, hours and kWh consumption.
Hour counter and kWh consumed without 230V connection.
Adjustable service interval counter.
Supply of extra heat for higher dehumidification efficiency.
Targeted dehumidification, e.g. between floor decks.
Operation described in the user guide in this manual.
Cooling circuit
diagram
CDT 30S MK II
CDT 40S MK II
Pos.
Description
Pos.
Description
1
Compressor
5
Capillary tube (CDT 30S only)
2
Condenser
6
Evaporator
3
Fan
7
Solenoid
4
Dry filter
8
Thermostatic expansion valve
(not CDT30S)
Main switch
Function keys
Status indicators
Display

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Preparation and transportation guide
Introduction
This section is a guide to unpacking, preparation, transport and storage
Warning
If the machine has been transported lying down, allow it to stand upright for at least 1
hour before use.
Unpacking
Follow these steps for unpacking:
Step
Action
Illustration
1
Open the top of the pack-
aging
2
Position the box vertically,
with the wheels at the bot-
tom
3
Extract the machine from
the box
4
Loosen the knobs, pull the
handle up to the desired
height and retighten the
knobs
5
Remove the protective foil on the control panel
Continued on next page

6
Preparation and transportation guide, cont.
Position
Position the dehumidifier where there is plenty of air circulation around it, with mini-
mum 60 cm of clearance on the air intake side, and 3 meters of clearance on the ex-
haust side if no flexible ducts are attached.
Optimum operation
Ensure the room to be dehumidified is sealed, and that the machine is not located near
a heat source, such as radiators.
If flexible ducts are attached, performance will be significantly impaired if they exceed 5
metres in length.
Electrical connection
The machine comes complete with a 3.5m power cord, and can be connected to any 230
V, 50 Hz socket with a 10-16A fuse.
Stairs
The wheels are positioned such that the machine can be pulled upstairs without damage
to the cabinet or stairs.
Transporting or
moving the dehu-
midifier
The machine can be moved by two people or using a crane. See the instructions below:
Be aware of any local safety regulations with regard to lifting!
2 people
Hoist/crane
Lifting using a cargo strap
Continued on next page

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Preparation and transportation guide, cont.
Storage
Do not stack more than 2 high.
Step
Illustration
Push handle down.
Stack units.
Check that the upper set of wheels are
placed correctly on the handle below.

8
User guide
Introduction
All functions are controlled from the integrated control panel.
The user guide contains the following sections:
Introduction................................................................................................................8
Switching on/off and operating status.........................................................................8
Operating the heating element....................................................................................8
Internal hygrostat operation........................................................................................9
External hygrostat operation .......................................................................................9
Hour counter ..............................................................................................................9
Display texts.............................................................................................................10
Text displays when not connected to mains ..............................................................10
Replacing the memory battery...................................................................................11
Error messages .........................................................................................................12
Emptying the water container....................................................................................13
Switching on/off
and operating status
The table below shows operation of the on/off function and display texts.
Key
Display
ON –constant
INT HYG ON –operation controlled by internal hygrostat
INT HYG STOP, if internal hygrostat set point is reached
EXT HYG ON –operation controlled by external hygrostat
EXT HYG STOP, if external hygrostat set point is reached
Switch off
The green LED indicates active dehumidification
Operating the heat-
ing element
The integrated 1 kW heating element is activated by setting the
switch behind the water container to setting 1. Switch to O to de-
activate.
Continued on next page
Switch behind water container