Malmet WDF-3020 User manual

Serial Number:
Supplied to:
Date Installed:
Installed by:
Issue 1
Head Office and Customer Service
ABN 95 001 717 791
9-11 McKay Avenue
PO Box 373
Leeton NSW 2705
Phone: [phone]
Email: [email protected]
Front Loading Utensil
Washer Disinfector
Model WDF-3020
Operation, Maintenance and
Installation Manual
Note: Due to Malmet’s Policy of continuous product improvement;
design and technical specifications are subject to change without notice.

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 1 20/01/2022
Table of Contents
Foreword .............................................................................................................................................................................................................2
Certifications and Compliances............................................................................................................................................................................ 2
Quality Policy .......................................................................................................................................................................................................2
Important Warranty Reminder ............................................................................................................................................................................2
Malmet Head Office and Factory Contact Details................................................................................................................................................2
Safety Instructions –Warnings ............................................................................................................................................................................3
Intended Use........................................................................................................................................................................................................4
1.0 Design Parameters ..................................................................................................................................................................................4
1.1 Operating Cycles ..................................................................................................................................................................................5
1.2 Chemical Dosing System ...................................................................................................................................................................... 5
1.3 Device Features....................................................................................................................................................................................6
1.4 Control Panel........................................................................................................................................................................................6
1.5 Buttons & Indicators ............................................................................................................................................................................7
1.6 LCD Layout............................................................................................................................................................................................7
2.0 Loading and Operation............................................................................................................................................................................8
2.1 Lower basket configuration..................................................................................................................................................................8
2.2 Upper basket configuration.................................................................................................................................................................. 9
3.0 Detergent replacement procedure .......................................................................................................................................................10
4.0 Cycle of Operation.................................................................................................................................................................................11
5.0 Device faults ..........................................................................................................................................................................................13
5.1 Fault indication...................................................................................................................................................................................13
5.2 Operator resettable faults..................................................................................................................................................................13
5.3 Fault list..............................................................................................................................................................................................14
5.7 Making equipment safe after incomplete operating cycle................................................................................................................. 18
5.4 Error reset ..........................................................................................................................................................................................18
5.5 Master reset (access to load in a fault condition) ..............................................................................................................................18
6.0 Maintenance .........................................................................................................................................................................................19
6.1 Daily maintenance (operator or maintenance technician) ................................................................................................................19
6.2 Bi-monthly maintenance (maintenance technician) ..........................................................................................................................19
6.3 Recommended preventative maintenance schedule (to be performed by qualified maintenance personnel)................................. 20
6.4 Wash arm nozzle cleaning instructions ..............................................................................................................................................20
6.5 Stainless steel maintenance/care.......................................................................................................................................................21
7.0 Safety checks .........................................................................................................................................................................................21
7.1 Door safety test.................................................................................................................................................................................. 21
7.2 Cycle operation check ........................................................................................................................................................................21
7.3 Post maintenance and repair of electrical systems............................................................................................................................21
8.0 Replacement of safety devices..............................................................................................................................................................22
9.0 Installation and Commissioning ............................................................................................................................................................ 24
9.1 Installation..........................................................................................................................................................................................24
9.2 Risk Assessment .................................................................................................................................................................................24
9.3 Handling .............................................................................................................................................................................................24
9.4 Service Connections ........................................................................................................................................................................... 25
9.5 Plumbing ............................................................................................................................................................................................25
9.5 Electrical............................................................................................................................................................................................. 25
9.6 Service connection and layout details................................................................................................................................................ 26
9.7 Dimensions......................................................................................................................................................................................... 27
9.8 Recommended installation clearances...............................................................................................................................................27
10.0 Commissioning (To only be completed by qualified persons) ...............................................................................................................28
11.0 Technical Data .......................................................................................................................................................................................28
11.1 Power and Water Consumption.........................................................................................................................................................28
11.2 Device specifications ..........................................................................................................................................................................29
11.3 Wiring Diagram (WDF-3020) .............................................................................................................................................................. 30
Warranty Statement ..........................................................................................................................................................................................31

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 2 20/01/2022
Foreword
In order to obtain maximum life and efficiency from your Malmet Front Loading Utensil Washer Disinfector and to aid in the safe
operation of the device, please read and understand this manual thoroughly and follow all instructions before operating.
This device is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge.
Children should be supervised to ensure that they do not play with the device.
The specifications supplied in this manual were in effect at time of publication, however due to Malmet (Australia)’s policy of
continuous improvement, changes to these specifications may be made at any time without notice on the part of Malmet
(Australia) Pty Ltd.
Certifications and Compliances
ARTG Identifier: 381412
Electrical Safety Cert: CS10975N
Watermark Cert: WMK26630
Quality Policy
Malmet’s quality management system is certified to ISO 13485:2016 and ISO 9001:2015 and guarantees the quality of this device.
Important Warranty Reminder
Should you have any problems with your device, contact the company from whom you purchased it, or Malmet (Australia) Pty Ltd.
It is important that the name from whom you purchased your device and the name of the installer are recorded on the front page
of this manual. The installer is responsible for the correct installation, start up and demonstrating the operation of this device.
They are also responsible for issuing relevant certificates of compliance (these may differ from state to state).
Malmet Head Office and Factory Contact Details
Malmet (Australia) Pty Ltd
9-11 McKay Avenue
PO Box 373
LEETON NSW 2705
Telephone: [phone]
E-mail: [email protected]om.au
Website: www.malmet.com.au

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 3 20/01/2022
Safety Instructions –Warnings
Please read and understand this manual before using this device, if this device is used in a manner not specified by the
manufacturer protection by the device may be impaired.
Please refer to this manual for information wherever this warning symbol is displayed –
Be aware of 240V / 415V Voltage
Disconnect power when servicing
Mains power ISO switch must be in an accessible position easily reached and not
obstructed so device can be isolated from mains power during service
For the safe use of this device the responsible body should ensure that all operators
are adequately trained to operate and maintain the device in its safe use
Only process items listed as per the design parameters in this manual
Be aware of steam discharge
Utensils and racks are hot to handle
Safety gloves and goggles must be worn when changing detergent
Be aware of hot surfaces, pipes and hoses from steam and hot water
Machine to be serviced and repaired by trained personnel
Safety critical devices must only be replaced by trained personnel
Plumbing service connection must comply with AS/NZS 3500.1 & AS/NZS 3500.2
Not suitable for use in the presence of flammable anaesthetic mixtures with air or
nitrous oxide and mode of operation as continuous

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 4 20/01/2022
Intended Use
The Malmet Front Loading Utensil Washer Disinfector is designed to clean and disinfect during an automatic cycle
medical devices of the types intended to be re-used as listed in the design parameters section of this manual.
1.0 Design Parameters
The Malmet Front Loading Utensil Washer Disinfector has been designed within the following parameters:
a) To clean and disinfect during each automatic cycle a load comprised of the following re-useable medical devices.
i) 345mm/305mm/240mm/210mm/185mm/140mm/110mm/100mm/80mm bowls, dishes and receivers.
ii) 300mm/255mm/220mm/160mm Kidney dishes
iii) Large (270mmx100mm) & Small (200mmx75mm) Procedure/Instrument trays
iv) Utensils
b) Baskets & racks are designed to ensure that items being processed are not dislodged during the cleaning cycle; re-
useable medical devices must be loaded in the appropriate holder as per the loading specifications in this manual
to ensure correct processing.
c) The wash chamber and door are self-cleaning and do not permit water or soil to remain after a properly
completed cycle. Steam disinfection ensures all internal surfaces are totally clean and safe.
d) The wash cycle is comprised of the following stages:
i) Cold Rinse
ii) Hot Wash
iii) Hot Rinse
iv) Disinfection
v) Cool Rinse
e) The wash times and parameters are pre-set by factory but can be customized on request.
f) Disinfection cycle is factory pre-set to 90° for 1 minute, but is able to be set to any of the common holding times
used to achieve an A₀of 600 in accordance with AS/NZS 4187:2014, Section 6.3, Table 6.1. Disinfection can also be
set to achieve a target A₀between 600 and 5000 at a specified maximum temperature.
*The efficacy of disinfection can be impaired if soil removal is incomplete before the start of the disinfection process.
Users should be aware that some medical devices might require pre-treatment such as soaking or brushing before
processing. Please follow the manufacturer’s instructions when processing re-useable medical devices.
**High disinfection temperatures may affect some heat sensitive reusable medical devices; ensure items are
disinfected as per the manufacturer’s instructions.

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 5 20/01/2022
1.1 Operating Cycles
The Device has three Wash Cycle Options –Eco/Normal/Intense
Eco –Light Wash Cycle
1. Cold Rinse/Hot Wash 2 Min
2. Hot Rinse/Disinfection (Disinfection Parameters Set)
3. Cool down 20 Sec
Normal –Standard Wash Cycle
1. Cold Rinse 2 Min
2. Hot Wash 2 Min
3. Hot Rinse/Disinfection (Disinfection Parameters Set)
4. Cool down 20 Sec
Intense –Heavy Wash
1. Cold Rinse 2 Min
2. Hot Wash 2 Min
3. Hot Rinse 2 Min
4. Disinfection (Disinfection Parameters Set)
5. Cool down 20 Sec
Note: These times are only the Stage specific holding times and do not include filling, heating or draining.
Wash Stages
Wash cycles are comprised of the following stages:
Cold Rinse: Initial Rinse using water below 45°C
Hot Wash: Hot Wash at 50°C with the addition of detergent
Hot Rinse: Hot Water Rinse
Disinfection: Disinfection Wash as per set disinfection parameters (Factory 1 minute @ 90°C)
Cool Rinse: Final Rinse to cool processed items below 75°C
1.2 Chemical Dosing System
The chemical dosing system ensures the correct amount of process chemicals are delivered at the correct stage during
each operating cycle. Chemical addition is controlled by the automatic cycle controller and an alarm if the incorrect
amount of chemical is injected. The dosing system is designed for use with Malmet Chemical; other chemicals may impair
the operation of the system.

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 6 20/01/2022
1.3 Device Features
1.4 Control Panel
LCD Control
Panel/HMI
Service Access
Panel
Wash Chamber
Access Door
Adjustable
Machine Feet
Status LED
Power
Button
Display
Back
Button
Start
Button
Rotary Dial &
Select Button
Cycle
Indication
LED Halo

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 7 20/01/2022
1.5 Buttons & Indicators
Status LED RED = OFF
ORANGE = Power On & Door Open
GREEN = Power On & Door Closed
POWER On/Off (Standby)
Cancel Cancel selection or Exit to previous Menu
Select/Rotary Dial Pushing Down in the Rotary Dial selects the highlighted item, rotating
the dial navigates or changes selected fields
Start button Commence selected cycle
Cycle Indication LED Halo Flashes during cycle, displays solid at cycle completion
1.6 LCD Layout
Internal chamber
temperature
A₀value attained
during cycle
Wash cycle
selected
Disinfection
temperature
selected
Status

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 8 20/01/2022
2.0 Loading and Operation
For the safe use of this device the responsible body should ensure that all operators are adequately
trained to operate and maintain the device in its safe use.
The Malmet Front Loading Utensil Washer Disinfector has two baskets for processing of re-useable medical devices of the
type listed as per the design parameters. The lower basket is intended to process bowls of various sizes, while the top
basket is intended to process a combination of kidney dishes and other small utensils.
Open door and pull out basket to be loaded.
2.1 Lower basket configuration
LOWER BASKET
UPPER BASKET
LOWER BASKET
Bowls, dishes, or receivers of 185mm - 345mm in diameter with a depth not greater than 120mm can be
loaded in the lower basket as per the above configuration

Front Loading Utensil Washer Disinfector (WDF)
Operation, Maintenance and Installation Manual
Issue 1 Page 9 20/01/2022
2.2 Upper basket configuration
UPPER BASKET
The upper basket is split into two sections, a rack in the rear half for kidney dishes from 160-300mm. And a front
section which can accommodate smaller bowls, gallipots and receivers. An optional utensil basket can also be used for
smaller items.
NOTE: Take care when loading the top basket to ensure nothing protrudes below the basket that could potentially
foul the wash arm and prevent it from turning.
Large Kidney Dish Rack
Utensil Basket