IN-VA07-B001-00
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© Future Products Group
APPENDIX A
R-290 Refrigerant
General Guidance
VISAIR CABINETS
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APPENDIX A
R-290 Refrigerant
R-290
R-290 is the name for refrigerant grade high purity odorless propane.
It is NOT barbeque grill propane.
PROPANE IS HIGHLY FLAMMABLE. You MUST observe caution
and proper safety practices when servicing equipment with R-290.
Servicing
Servicing refers to making repairs to the hermetically-sealed system and any
parts of the electrical system.
Specialized
Training
Although not mandatory, specialized training of service personnel is desirable.
Environment
Repair on R-290 equipment should always be done in a well ventilated area.
Gas Detector
Because R-290 is highly flammable, an electronic combustible gas leak detector
is required when servicing R-290 systems.
Replacement
Parts
When opening any refrigeration system, the filter/dryer must be replaced with
the manufacturers specified spare part.
Fault Diagnosis
Since there are no access fittings on R-290 systems, temperatures and current
draw must be used to evaluate system performance.
Check List
Before proceeding with servicing, check the following:
MONITOR
: make sure the combustible-gas meter is on and in proper position.
VENTILATE
: make sure there is adequate ventilation in the work area.
ELIMINATE
: make sure to eliminate any potential ignition sources.