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Refrigeration
Refrigerant
The correct type of refrigerant will be stamped on each
merchandiser's serial plate. The case refrigeration
piping is pressurized with a nitrogen holding
charge, leak tested and factory sealed. Before making
refrigeration hookups, depress universal line valve
(Schrader Valve) to ensure that coils have maintained
pressure during shipment. In the case pressure was not
maintained contact your Hussmann Service Tech for
further assistance.
CAUTION
Refrigeration lines are under pressure.
Refrigerant must be recovered before
attempting to make any connections.
SERIAL PLATE
LOCATION
Refrigerant piping
The refrigerant line connections are at the right hand end
of the case (as viewed from the front) beneath the display
pans. The merchandiser will beforehand ensure an earlier
cut hole through the pod to exit the merchandiser for the
refrigeration lines. After connections have been made,
make certain to seal this outlet thoroughly if not sealed
at factory already. Seal both the inside and outside. We
recommend using an expanding polyurethane foam
insulation.
Line Sizing
Refrigerant should be sized as shown on the refrigeration
legend that is furnished for the store or according to the
ASHRAE guidelines
Oil Traps
P-traps (oil traps) must be installed at the base of all
suction line vertical risers.
It is the contractor's responsibility to install
case(s) according to local construction and
18
health codes.
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