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R290 SERVICE NOTES
• The serial tag on an R290 machine will identify it as containing R290 refrigerant.
• Multiple warning labels describing Cautions and Warnings have been placed on various locations on
and within the machine.
• The process tubes on the refrigeration deck are red indicating it contains R290.
• The drain pan on R290 refrigeration decks are green identifying it as using a Green refrigerant.
• All motors within the refrigerated space are brushless motors and are not interchangeable with motors
from BevMax machines using alternate refrigerants.
TECHNICIAN WORK PROCESS IN THE EVENT OF A
REFRIGERANT LEAK IN AN R290 UNIT
If a complaint is received that a refrigerated unit containing R290 (Propane) is not chilling (drinks aren’t cold,
drinks don’t get cold within x hours, etc.), any service work requires the proper precautionary steps in advance of
approaching or servicing the machine.
Servicing shall be done by factory authorized service personnel who have been properly trained so as to
minimize the risk of possible ignition due to incorrect parts or improper service, including the use of proper parts.
These steps should be followed in the order in which they are provided here. No steps should be skipped.
1) Advise the location owner/operator that you will be on site performing service on the machine.
2) Scan the area for any potential sources of ignition and disable or eliminate them.
3) A plainly visible placard advising “No Smoking or Open Flame” should be positioned to be readily seen
and obeyed by any local foot or vehicle traffic, including forklifts.
4) A properly rated fire extinguisher should be present, and available.
5) Turn on an appropriate leak detection unit for use w/ flammable gases. The detection device should
remain functional for entire duration of the service event. If the service event requires removal of the
refrigeration unit, the leak detector should remain operational until the refrigeration unit has been
removed from the building.
6) As you approach the machine, sweep the lowest level of the floor, as propane is heavier than air, and
will sink. Be aware of depressed pockets or spaces that might have collected residual gas after it has
escaped.
7) If no gas is detected, the leak detector must remain operational, while the machine and/or unit is
subjected to the troubleshooting process.
8) If minimal refrigerant gas is detected, a properly rated, ignition proof fan to circulate the air should
be placed to provide ventilation or exchange of the air in the area around the machine, or bank of
machines.
9) Using extreme caution, open the doors on the machine, one at a time, while continuing to hold the
leak detector close to the floor. If a leak has occurred in the evaporator portion of the refrigeration units,
any gas that has escaped, would be circulating in the chilled compartment. Exercise caution when
opening the glass door as any gas will rapidly drop to the level of the floor.
THE REFRIGERATION UNIT IN THIS MACHINE DOES NOT CONTAIN ANY USER
SERVICEABLE PARTS.
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