Hydrocarbon Guidelines
2
PROPANE (R290) IS HIGHLY APPROVED FOR USE AS A REFRIGERANT IN COMMERCIAL,
SELF-CONTAINED UNITS IN THE US UNDER LIMITED USE CONDITIONS. IT CAN ONLY BE
USED IN NEW EQUIPMENT. BACKFITTING OR MODIFICATIONS OF OLD EQUIPMENT ARE
NOT ALLOWED. IT MUST BE CHARGED IN A STRICTLY LIMITED VOLUME OF UP TO 150
GRAMS (5.3 OZ) PER REFRIGERATION CIRCUIT. EVEN THOUGH THIS IS A SMALL AMOUNT,
IT STILL PRESENTS A FIRE OR EXPLOSION HAZARD IF IT LEAKS OUT OF PARTS THAT
HOLD REFRIGERANT. WHEN IT COMES IN CONTACT WITH AIR, A FLAMMABLE PROPANE-AIR
MIXTURE CAN BE CREATED AND EASILY IGNITED BY ELECTRICAL SPARKS, OPEN FLAMES OR
HOT SURFACES. THE RISK IS HIGHER IN SMALL, CONFINED, POORLY VENTILATED SPACES.
PROPANE WILL SETTLE AT LOWER ZONES BECAUSE IT IS HEAVIER THAN AIR. TO REDUCE
THESE RISKS, OBSERVE THE FOLLOWING PRECAUTIONS
• Avoid installation of unit in areas with open flames or in general vicinity of open flames or high
surface temperatures.
• Avoid unit installation in small, confined spaces. Ensure ample ventilation at all times. Keep all
exhaust vents free of any blockage or obstruction.
• Do not rely on smell to detect potential leaks of propane refrigerant. Propane refrigerant is a
high purity propane gas and does not contain odorants or stenching agents. These additives are
typically used in fuel-grade propane and natural gas in order to give them a distinctive smell which
makes it easier to detect leaks.
• General service and repairs must be performed in well-ventilated areas.
• General service and repairs must be performed only by professionals authorized by Everest
Refrigeration.
• Component shall be replaced with Everest-issued, like components to minimize the risk of possible
ignition resulting from incompatible parts or improper repairs.
• Do not modify, re-appropriate, or remove any functional part(s) from the unit.
• Handle the unit with care to avoid any damage.
• Practice safety guidelines when transporting the unit. Consult with your local Department of
Transportation for requirements in moving flammable gasses.