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INSTALLATION INSTRUCTIONS
DRAIN LINE
If unit cooler is mounted flush to ceilling, the staggered
height hanger will provide a positive pitch for drainage of
condensate and defrost melt water.
If units are suspended below the ceilling, the installer
should provide adequate pitch to the unit by adjusting
the location of the hanger rod nuts.
Note: Check for adequate drainage by pouring water into
the drain pan.
Insulated copper tube should be run from the drain
connection, sloping at least 4” (102mm) per foot. A trap
outside of the room will prevent warm air entering
through the tubing. Connection should be made to
proper drainage facilities that comply with local
regulations.
It is necessary to heat the drain line to prevent
condensate from freezing in the drain line. Electric
heating cable or electric tape (by others) is used for this
purpose. The drain line heater should be connected for
continuous operation; it is also recommended that the
drain line be insulated. A heat output of 20 watts per
lineal foot of 1” (25mm) drain line in a 0°F (-18 °C) room
is usually satisfactory. 115 volt cable and tape is avail-
able in hardware and automotive supply stores. Two 115
volt heaters (by others) of the same wattage may be
wired for use on 230 volt systems.
ELECTRICAL
Wire system in accordance with governing standards
and local codes. See wiring diagrams for unit cooler
wiring diagram and typical system wiring schematic.
Note: Electrical wiring is to be sized in accordance with
minimum ampacity rating.
The defrost termination thermostats, fan delay
thermostats and defrost heater safety thermostats are
factory supplied and factory wired to a terminal block.
See component identification diagram on wiring diagram
for electrical compartment arrangement.
A hinged end panel provides quick access to the
electrical compartment.
INSPECTION
Careful inspection of all parts when received for loss or
damage in transit is very important - Remember, you, the
consignee, must make any claim necessary against the
transportation company. Shipping damage or missing
parts, when discovered at the outset, will prevent later
unnecessary and costly delays.
Ensure that the electrical characteristics are as ordered.
Save all tags and instruction sheets for reference by
installer and owner.
LOCATION
The unit location in the room should be selected to ensure
uniform air distribution throughout the entire space to be
refrigerated. Make sure that the fan does not blow directly
out or pull in through an opened door and that the product
does not obstruct the free circulation of air.
When installing the unit adjacent to a wall, sufficient
clearance must be provided to allow free air movement to
the coil.
Clearance must be provided at each end of the unit to
allow access to refrigerant piping and electrical
compartment.
See dimensional drawings for clearance requirements.
INSTALLATION
Note: These units draw air through the coil and
discharge air from the fan side
BJBF Blast Freezers are supplied with shipping legs to
allow units to be shipped in an upright position. Units are
lifted into place with shipping skid attached to mounting
legs.
Slotted hanger brackets take 1/2” (12.7mm) hanger rods.
For fast, convenient mounting, install washer and nuts on
hanger rods prior to lifting units. Rods may be lifted into
slots and are held securely in place by tangs on hangers.
After unit coolers are hung in place, remove shipping legs
from units by removing the two 5/16” (8mm) bolts from
each shipping leg.
Note: Shipping legs must be removed to allow hinged
drain pan to open.
