4
AFTER SALES SUPPORT
1300 886 649
AUS
MODEL: PA19W PRODUCT CODE: 703227 11/2020
Service Instructions (Cont.)
1. Checks to the area
Prior to beginning work on systems containing flammable refrigerants,
safety checks are necessary to ensure that the risk of ignition is
minimised. For repair to the refrigerating system, points 1.2 to 1.6 below
shall be completed prior to conducting work on the system.
1.1 Work procedure
Work shall be undertaken under a controlled procedure so as to minimise
the risk of a flammable gas or vapour being present while the work is being
performed.
1.2 General work area
All maintenance staff and others working in the local area shall be
instructed on the nature of work being carried out. Work in confined spaces
shall be avoided. The area around the workspace shall be sectioned off.
Ensure that the conditions within the area have been made safe by control
of flammable material.
1.3 Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to
and during work, to ensure the technician is aware of potentially toxic or
flammable atmospheres. Ensure that the leak detection equipment being
used is suitable for use with all applicable refrigerants, i.e. non-sparking,
adequately sealed or intrinsically safe.
1.4 Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any as-
sociated parts, appropriate fire extinguishing equipment shall be available
to hand. Have a dry powder or CO
2
fire extinguisher adjacent to the charg-
ing area.
1.5 No ignition sources
No person carrying out work in relation to a refrigeration system which
involves exposing any pipe work shall use any sources of ignition in such a
manner that it may lead to the risk of fire or explosion. All possible ignition
sources, including cigarette smoking, should be kept sufficiently far away
from the site of installation, repairing, removing and disposal, during which
refrigerant can possibly be released to the surrounding space. Prior to work
taking place, the area around the equipment is to be surveyed to make sure
that there are no flammable hazards or ignition risks. “No Smoking” signs
shall be displayed.
