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S
P
PECIALIZED
RECAUTIONS AND
Qualification of Service Personnel/Workers
Required qualification of working personnel for maintenance, service and repair operations. Every working procedure that affects safety
means shall only be carried out by competent persons.
Examples for such working procedures are:
·
Breaking into the refrigerat i ng c ircu it.
·
Opening of sealed components.
·
Opening of vent il at ed encl os ur es.
Information on Servicing
·
Prior to beginning work on systems containing FLAMMABLE REFRIGERANTS, safety checks are necessary to ensure that the risk
of ignit i on i s m i n i m i zed .
·
For repair to the REFRIGERATING SYSTEM, above steps shall be completed prior to conduct i ng w o rk on t he syst e m .
Work Procedure
Work shall be performed under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present
while the work is being performed.
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.
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.
Presence of Fire Extinguisher
If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall
be available to hand. Have a dry chemical or CO
No Ignition Sources
No person carrying out work in relation to a REFRIGERATING 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.
Ventilated Area:
Ensure that the area is in the open or that it is adequately ventilated before breaking into the refrigeration system or conducting any hot
work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any
released refrigerant and preferably expel it externally into the atmosphere.
© 2022, Marmon Foodservice Technologies Inc.
QUEST ELITE 4 Flavor Installation, Service & Decommissioning Manual
G
S
UIDELINES FOR
ERVICING
fire extinguisher adjacent to the charging area.
2
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U
U
R290 R
NITS
SING
Publication Number:721Q14101MNL
EFRIGERANT
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