2-14
e
lectrIcal
/ c
ontroller
/ W
ater
/ r
efrIgeratIon
P/N3053878_B
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
REFRIGERATION
Each DD5X5FRW self-contained case is equipped
with its own compressor, one for every 4 ft. The
refrigeration system is factory charged and sealed.
Each case has one electronic controller.
These self contained merchandisers use R-290
(propane), refrigerant. All models have compressor(s).
The systems employ capillary tubes for refrigerant
flow control. If the capillary tube becomes plugged
or damaged, replace the entire capillary tube.
Refer to the case serial plate for refrigerant charge
information. The following illustration shows the
details of the refrigeration system.
CONDENSING UNIT ACCESS
Condensing units are located on top of the case. The
condensing unit(s) have an electrical box for wire
connections and field service. All the cases and condensing
units’ electrical connections are done at the factory.
Attention trained service personnel:
Mandatory safety service procedures
must be followed when servicing
refrigeration system.
Risk of fire or explosion. R-290 (propane) refrigerant is
flammable, and the refrigeration system should be serviced or
repaired only by trained service personnel. Do NOT puncture
refrigerant tubing.
Opening condensing unit electrical
box exposes personnel to electrical
hazard and should only be preformed
by a qualified service technician.
