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 A₀ of 600 in accordance with AS/NZS 4187:2014, Section 6.3, Table 6.1. Disinfection can also be
set to achieve a target A₀ between 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.
