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User Manual for VM Refrigerators
FOR THE SERVICE TECH - R290
Refrigeration service should only be attempted by a trained trade professional certified to work on R290 systems.
Here are some critical service items.
This list does not qualify anyone to service the unit. It is a
reminder and checklist for the service tech. Keep these in
mind for R290 service:
•
Wire nuts are NOT to be used when changing an
electrical part.
•
The switches in this product are sealed, only exact
replacements may be used.
•
The process tubes are to be used for service access.
•
Cut out (with tubing cutter) refrigeration components
that are to be replaced. Do NOT un-braze.
•
Because R290 can be vented into the air during
service, the venting MUST be in an area free from
flame or spark. It must be near an opened window or
door.
•
A sign noting service of a system containing propane
must be attached to the unit during refrigeration
service.
•
A combustible gas leak detector must be used to
inform anyone in the area when propane is present in
the air.
Rev. 02/24
Mechanical Components:
•
The units will have either one or two compressors
that will start in two steps, with a delay of ten
seconds to reduce the rush of current into the unit.
•
These units incorporate a "maintenance free"
condenser design in the refrigeration system which
reduces the need for the regular cleaning process that
fin and tube condensers require. Besides the savings
in preventive maintenance costs, energy expenses
will be stable throughout long periods of time since
the condensers will remain "clean and unobstructed".
•
In the event it is believed that the unit has had a
"freeze up" condition due to operation of the unit
in high temperature or humidity conditions, the
evaporator can be inspected by removing the floor of
the inside of the unit. In the event the evaporator is
frozen, it can be thawed by emptying the cabinet of all
contents and removing power until the coil is clear.
•
When the equipment operates, condensed water
from the environment is collected on the evaporator.
During each off-cycle, the water drains to the
evaporator tray located at the bottom of the unit,
where it is evaporated using the heat from the
refrigeration system.
•
The condensing unit can be pulled out, sliding it
approximately 16" to allow servicing the condenser
motor(s), compressor(s), and other electrical
components. In order to service the condensing unit,
remove the two screws that hold the lower front grille
(one at each side). Remove the screws that hold the
front bracket that clasps the condensing unit and
slide it out gently to have access to the components
you want to check. Once completed,ensure that every
component has been returned to it's original location
for proper operation.
•
The lamp can be turned off with the switch located at
the left side of the upper section, near the lamp.
•
The night curtain should be closed whenever the unit
is not required for actively merchandising products.
Beverage-Air
Beverage-Air
17
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