Bedpan / Urinal Bottle and Utensil / Bowl Washer Disinfector (WDS)
Operation, Maintenance and Installation Manual
Issue 16
Page
29
August 22
5.4.1 Door Safety Test
To check the correct functionality of the door safety and position sensors, open and close the door using the manual door
open button. During operation the device will conduct a self-check for correct operation of these switches. Once
complete, check door is firmly closed and is flush with outer panel and no faults are displayed.
5.4.2 Cycle Operation Check
After completion of the required checks above, a cycle operation check is to be completed. Run the device through a
complete cycle ensuring correct sequence of operation as per 4.0 Cycle of Operation. Inspect for fluid leaks from around
the chamber door, rear service connections and beneath the device. If no faults are found during the inspection, and the
device displays no faults at end of the cycle, the device is fit for return to operation.
5.4.3 Post Maintenance and Repair of Electrical Systems
Additional to the above safety tests if any repair or service work has been carried out that could affect the electrical safety
of the device; it must be inspected and tested as per the requirements of AS/NZS 3760 prior to being returned to service.
Inspection
1.
Check for obvious damage, defects or modification to the equipment that may affect its safe operation.
2.
Check the main power cord is effectively anchored to equipment, that the outer sheath is not damaged and free of
discoloration that may indicate exposure to excessive heat, chemicals or moisture, and that none of the internal cores
are visible.
3.
Check all guards are installed and secure, all ventilation inlets/outlets are unobstructed and that operating controls are
in good working order.
Testing - An insulation meter or PAT with an accuracy of class 5 or better shall be used for the following tests.
1.
An Earth continuity test between the protective earth cond
uctor and accessible earthed parts. Must not exceed 1Ω.
2.
Insulation resistance test between the live supply conductors connected together and accessible earthed parts. During
test equipment ON/OFF switch must be in the ‘ON’ position. Must not exceed 1Ω.
If device fails any of the above tests it is not safe for operation, and cannot be put
into service until the cause of the fault has been rectified and successful completion
of tests.
5.5
Replacement of Safety Devices
The following safety devices must be replaced and tested by a Malmet trained technician, failure to do so may impair the
protection by the device.
•
Door Actuator
•
Door Micro Switch
•
Water Tank Element Thermal Cut-out
•
Steam Generator Thermal Cut-out
Information on replacement of these devices can be found in the Service Technicians Manual.
