BEXDWG
P/N 3093114_A 2-1
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
REFRIGERANT
The correct type of refrigerant will be stamped
on each merchandiser’s serial plate. The
merchandiser refrigeration piping is leak test-
ed, factory sealed and pressurized. Before
making refrigeration hookups, depress the uni-
versal line valve to ensure that coils have main-
tained pressure during shipment. When using
high glide refrigerants (e.g., R-407A, R-448A),
if superheat needs to be adjusted, use the evap-
orator pressure and subtract the dew point
from the coil outlet refrigerant temperature to
measure the superheat level.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the
right- hand end of merchandiser (end opposite
the main serial plate) beneath the display pans.
A sticker marks the location of the connection.
The installer must saw a hole to exit the cases.
A refrigeration shroud ships with each case.
Be fore making connections, place the refriger-
ation shroud over refrigeration piping so that
when the shroud is rotated into place, it will be
in the upright position. The Figure 2-1 shows
the correct orientation.
Be careful not to burn, scorch or overheat the
shroud when making connections. Once
connections have been made, apply silicone
sealant to the bottom of the shroud as shown
in Figure 2-2.
REFRIGERATION / ELECTRICAL
Figure 2-2
Refrigerant vapor is hazardous to your health and
can cause death.
Avoid breathing refrigerant and lubrication vapor or
mist. Exposure may irritate eyes, nose and throat.
If accidental system discharge occurs, ventilate
work area before resuming service.
Always wear safety goggles and protective gloves
when working with refrigerants. Contact with
refrigerant may cause injury. Disconnect hoses
with extreme caution! All hoses may contain liquid
refrigerant under pressure.
Be sure that any room where you are working is
thoroughly ventilated, especially if a leak is sus-
pected.
Read all safety information regarding the safe han-
dling of refrigerant and refrigerant oil, including
the Material Safety Data Sheet. MSDS sheets can
be obtained from your refrigerant supplier.
Refrigeration lines are under pressure and
should be depressurized before attempting to
make any connections.
Figure 2-1
