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Back Bar Operation Installation Manual
2.0
Safety Information
2.1 Refrigerant HC-R290
All self-contained models covered in this service
manual are manufactured using refrigerant HC-290
(Propane).
2.2 Servicing with R-290
R290 is a hydrocarbon. This refrigerant is flammable
and is only allowed for use in appliances which fulfill
the requirements of UL 471 (To cover potential risk
originated from the use of flammable refrigerants).
Consequently, R290 is only allowed to be used in
refrigerating appliances which are designed for this
refrigerant and fulfill the above-mentioned standard.
•
R290 is heavier than air. The concentration will
always be highest at floor level.
•
The explosion limits are as follows:
Lower Limit: 1.7% by vol. (37 g/m3)
Upper Limit: 9.5% by vol. (177 g/m3)
Ignition Temperature: 470 °C
General
Do not use near open fire. To Carry out service and
repair on R290 systems the service personnel must
be properly trained to be able to handle a flammable
refrigerant. This includes knowledge on tools,
transportation of compressors and refrigerant, and
the relevant regulations and safety precaustion when
carrying out service and repair.
