Table of Contents
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Overview
Serial number:
This manual covers Wilms Dehumidifiers with
serial numbers from:
Warning:
It is the responsibility of the operator to read and understand this service manual
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 procedure for the unit and all safety precautions to prevent
the possibility of property damage and/or personal injury.
Contents:
This service manual covers the following main topics:
Introduction
606230852405
Topic:
1
Page
2
3 - 4
5 - 6
7
8
9 - 10
11
12
13
14
15
16
17
18 - 23
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Table of Contents
Related Manuals for WILMS KT 820
Summarization of Contents
General Information
Introduction
Gives general information about the service manual and the unit.
Target Group
Identifies technicians as the target audience for this manual.
Copyright
States that copying the manual is forbidden without written permission.
Reservations
Company reserves the right to make changes to the product and manual.
EU-Conformity Declaration
Declares conformity with directives and standards for specific dehumidifier types.
Recycling
Provides guidance on recycling the unit according to national rules.
Product- and functional description
Introduction
Provides a description of the machines and their functions.
Principles of operation
Describes the airflow through the dehumidifier and its drying process.
Illustration
Shows an overview illustration of the dehumidifier with labeled parts.
Water Tank
Explains water collection, permanent drainage, and automatic shut-off when full.
Illustration, Display/Operator Control
Illustrates the operator control panel and its components.
Part/Function
Describes the function of the main switch, hour meter, and display icons.
Set up and transport of the unit
Introduction
Provides information on unwrapping, readiness for use, and transportation.
Warning
Emphasizes placing the unit upright for at least one hour after transport.
Procedure
Details the steps for unwrapping the unit and making it ready for use.
Placing
Provides guidelines for optimal placement of the dehumidifier for good air circulation.
Electrical Connection
Specifies connection requirements for a 230/50 Hz socket with appropriate fuse.
Wheels
Notes the wheel placement for easy transport up stairs without damage.
Transport/- Replacing of the dehumidifier
Provides instructions for moving the dehumidifier by two people or a crane.
Stacking
Details the procedure for safely stacking up to two dehumidifiers.
Manual
Starting
Outlines the procedure for starting up and shutting down the dehumidifier.
Emptying the water tank
Details the step-by-step procedure for removing and emptying the water tank.
Service Guide
Overview
Notes that spare parts are detailed from page 18.
Note
Reminds users to disconnect the power cable before any service.
Important
Emphasizes disconnecting the power cable before performing any service.
Content
Lists the topics covered in this chapter: Preventive maintenance, Accessories, Fault finding, Service agreement.
Preventive Maintenance
Introduction
Explains the necessity of proper maintenance for trouble-free operation.
Contractual Service
Mentions contractual service agreements for maintenance offered by the company.
Important!
Reiterates disconnecting the power cable before any preventive maintenance.
Monthly Inspection
Details the procedure for carrying out monthly preventive maintenance tasks.
Annual Inspection
Outlines the procedure for annual preventive maintenance tasks.
Accessories
Introduction
States that more information on accessories is available upon request.
List
Presents a list of available accessories with drawings, descriptions, and part numbers.
Fault finding und solving
Fault fnding and fault solving
Provides a table to identify and remedy common problems or faults.
Note
Advises shutting down immediately if not working correctly and waiting before fault locating.
Further help
Instructs to contact a dealer for persistent issues or cooling circuit defects.
Service-Agreement
Introduction
Explains the need for regular preventative maintenance due to unit components and environment.
Hotline
Provides contact information and required details for after-sales support.
Preventive Maintenance
Offers company services for performing preventive maintenance to factory standards.
Corrective and emergency repair
Offers repair services for malfunctions with agreed response times.
Set-up
Mentions the company's network of service partners for preventive maintenance.
Further Information
Provides contact details for service agreements in specific countries or regions.
Technical data
General data
Presents general technical specifications for KT 320, KT 420, and KT 820 models.
Wiring Diagram
Legend to wiring diagram
Lists component positions and their corresponding descriptions for the wiring diagram.
Cooling Circuit
KT 320 / KT 420
Diagram showing the cooling circuit for KT 320 and KT 420 models.
KT 820
Diagram showing the cooling circuit for the KT 820 model.
Compressor
Component 1 in the cooling circuit diagram.
Evaporator
Component 2 in the cooling circuit diagram.
Condenser
Component 3 in the cooling circuit diagram.
Capillary tube
Component 4a in the cooling circuit diagram.
Valve
Component 4b in the cooling circuit diagram.
Filter
Component 5 in the cooling circuit diagram.
Solenoid valve
Component 6 in the cooling circuit diagram.
Fan
Component 7 in the cooling circuit diagram.
Receiver
Component 8 in the cooling circuit diagram.
Spare Part List KT 320
Fan - complete
Complete fan assembly for the unit.
Fan Motor 10 W 230 V
Fan motor specifications.
Fan bracket
Bracket for mounting the fan.
Fan blade 230 mm
Fan blade with a diameter of 230 mm.
Sensor - 2600 mm
Sensor with a length of 2600 mm.
Condenser-evaporator
Combined condenser and evaporator unit.
Front grill incl. filter
Front grill that includes the air filter.
Filter 335x275x15mm
Air filter with dimensions 335x275x15mm.
Waterstop-sensor
Sensor that detects water presence or level.
Control panel - complete
Complete control panel assembly.
Running time meter
Device to measure and display operating hours.
Switch - green
A green switch component.
Control lamp - white
A white indicator lamp for control.
Control panel - front
The front part of the control panel.
Control board
The main electronic control board.
Coil for solenoid valve
The coil component for the solenoid valve.
Handle for transport
Handle designed for transporting the unit.
Cable, 3,5 m
Power or connection cable, 3.5 meters long.
Filter
A general filter component.
Exhaust grid
The grid covering the exhaust outlet.
Compressor KT 320
Compressor specific to the KT 320 model.
Vibration dampener
Component used to reduce vibration.
Wheel - complete
Complete wheel assembly for the unit.
Axle
The axle for the wheels.
Base
The base structure of the unit.
Front cover - complete
The complete front casing or cover.
Water tank - complete
The complete water tank assembly.
Plug - complete
Complete plug assembly.
Screw M 6x35
Type M 6x35 screw.
Solenoid Valve
A solenoid-operated valve.
Gasket
A sealing gasket.
Float
Float mechanism, likely for water level.
Hygrostat power socket
Socket for connecting a hygrostat.
Spare Part List KT 420
Fan - complete
Complete fan assembly for the unit.
Fan Motor 10 W 230 V
Fan motor specifications.
Fan bracket
Bracket for mounting the fan.
Fan blade - 230 mm
Fan blade with a diameter of 230 mm.
Sensor - 2600 mm
Sensor with a length of 2600 mm.
Condenser-evaporator
Combined condenser and evaporator unit.
Front grill incl. filter
Front grill that includes the air filter.
Filter 435 x 312 x 15
Air filter with dimensions 435x312x15.
Waterstop sensor
Sensor that detects water presence or level.
Control panel - complete
Complete control panel assembly.
Running time meter
Device to measure and display operating hours.
Switch - green
A green switch component.
Control lamp - white
A white indicator lamp for control.
Control panel - front
The front part of the control panel.
Control board
The main electronic control board.
Coil for solenoid valve
The coil component for the solenoid valve.
Handle for transport
Handle designed for transporting the unit.
Cable - 3,5 m
Power or connection cable, 3.5 meters long.
Filter
A general filter component.
Exhaust grid
The grid covering the exhaust outlet.
Compressor
Compressor component for the unit.
Vibration dampener
Component used to reduce vibration.
Wheel - complete
Complete wheel assembly for the unit.
Axle
The axle for the wheels.
Base
The base structure of the unit.
Front cover - complete
The complete front casing or cover.
Water tank - complete
The complete water tank assembly.
Plug - complete
Complete plug assembly.
Screw M 6x35
Type M 6x35 screw.
Solenoid Valve
A solenoid-operated valve.
Gasket
A sealing gasket.
Float
Float mechanism, likely for water level.
Hygrostat power socket
Socket for connecting a hygrostat.
Spare Part List KT 820
Fan - complete
Complete fan assembly for the unit.
Fan motor 25W 230 V
Fan motor specifications.
Fan bracket
Bracket for mounting the fan.
Fan blade 300 mm
Fan blade with a diameter of 300 mm.
Sensor - 2600 mm
Sensor with a length of 2600 mm.
Condenser - evaporator
Combined condenser and evaporator unit.
Front grill incl.filter
Front grill that includes the air filter.
Filter 435 x 388 x 15
Air filter with dimensions 435x388x15.
Waterstop sensor
Sensor that detects water presence or level.
Control panel - complete
Complete control panel assembly.
Running time meter
Device to measure and display operating hours.
Switch - green
A green switch component.
Control lamp - white
A white indicator lamp for control.
Control panel - front
The front part of the control panel.
Control board
The main electronic control board.
Coil for solenoid valve
The coil component for the solenoid valve.
Handle for transport
Handle designed for transporting the unit.
Cable - 3,5 m
Power or connection cable, 3.5 meters long.
Filter
A general filter component.
Exhaust Grid
The grid covering the exhaust outlet.
Compressor KT 820
Compressor specific to the KT 820 model.
Vibration dampener
Component used to reduce vibration.
Wheel - complete
Complete wheel assembly for the unit.
Axle
The axle for the wheels.
Base
The base structure of the unit.
Front cover - complete
The complete front casing or cover.
Water tank - complete
The complete water tank assembly.
Valve
A valve component.
Plug - complete
Complete plug assembly.
Screw M 6x35
Type M 6x35 screw.
Solenoid valve
A solenoid-operated valve.
Gasket
A sealing gasket.
Float
Float mechanism, likely for water level.
Hygrostat power socket
Socket for connecting a hygrostat.
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