Care Essentials
CWS4000 Cocoon Warming System Operator Manual
QPF 053 Revision S
Date 07.05.2012 Supersedes: 08.02.2012
Page 10
5.
PREVENTATIVE MAINTENANCE
5.1.
Cleaning
Clean the CWS4000 control panel, enclosure exterior, and hose with a soft cloth lightly
dampened with a non-staining hospital disinfectant.
Clean accumulated dirt and lint from the air inlet slots using a vacuum cleaner.
5.2.
Filter Service
Only qualified service personnel may change filters. Refer to the CWS4000 Service Manual for
instructions on replacing the filter. Under normal use, replace the HEPA filter inside the
CWS4000 every 1000 operating hours or 12 months, whichever occurs first. The
filter status
indicator
(G)
will warn of the need for filter replacement.
5.3.
Electrical Safety and Performance Inspection
Care Essentials recommend that the CWS4000 receive regular electrical safety inspections.
Information on the type and frequency of inspections may be obtained from locally published
technical standards.
In Australia, the relevant technical standards are:
AS/NZS3511 Technical management programs for medical devices.
This standard specifies procedures required to develop equipment management programs for
medical devices. Some of these include procedures for acceptance, fault management and
routine testing of medical devices. This standard specifies electrical safety, essential safety and
performance testing.
AS/NZS2500 Guide to the safe use of electricity in patient care.
This standard provides a comprehensive guide to the safe use of electrically operated
equipment used in health care facilities. Measures are detailed to provide and maintain patient
and operator safety, including details of the classes of equipment and electrical installations to
be used for particular medical procedures.
Programmed electrical safety inspections are essential to confirm continued operator and
patient safety. Mandatory, statutory requirements for electrical safety inspections may also
apply.
Care Essentials also recommend that the CWS4000 receive at least an annual performance
inspection as described in the CWS4000 Service Manual.
