SM/SV-Space Master Unit Coolers (E316008_B)
5
5
UNIT LOCATION AND MOUNTING
5.1
UNIT LOCATION
Unit coolers must be located to provide good air circulation to all areas of the cooler. The unit cooler should be
positioned to blow away from the wall and directed down an aisle rather than into and through shelves. For best
performance it is desirable to arrange the air discharge toward the door of the cooler to minimize the entrance of
warm moist air when the door is open. Light fixtures, shelving and product boxes must be located so that they
do not block the air intake or air discharge from the unit cooler.
IMPORTANT:
The coil face must be located a minimum of 34” for 1, 2 fans and 46” for 3, 4 fans from back side to the
wall to assure unrestricted air intake.
5.2
MOUNTING
Install the expansion valve and equalizer connection before hanging the unit cooler.
The unit cooler should be suspended with 1/2” or 5/8” diameter hanger rods. Rods should have double nuts on
the top and bottom. Adequate support must be provided to hold the weight of the unit.
The unit must be mounted so that the drain pan end is approximately 1” lower then the bottom of the electrical
end of the unit. If mounted to a level ceiling the hanging brackets are providing the slope. Mount to ceiling with
u-channels provided. Suspended units must have sufficient clearance above for cleaning the top. Remove
shipping legs after installation.
6
PIPING INSTALLATION
6.1
DRAIN LINE
The drain line should be as short and as steeply pitched as possible with a minimum of ¼” drop per running foot.
A drain line trap should be installed to prevent warm moist air from migrating through the drain line. If the
temperature surrounding the drain line and trap is below freezing (32 ) it must be wrapped with a drain line
heater and insulation. Be sure to also wrap the drain pan coupling. The drain line heater must be energized
continuously. Be sure to follow the manufacturer’s recommendation when installing the drain line heat tape.
Figure 3 Drain Line
EVAPORATOR
DRAIN PAN
4" to 6"
DRAIN TRAP
CONDENSATE
DRAIN LINE
UNION
DRAIN LINE WRAPPED
WITH INSULATING MATERIAL
THERMOSTATICALLY CONTROLLED
HEATING CABLE
INSULATED
WALL
HEATING CABLE
POWER LINE
VAPOR SEAL THE
PIPE PENETRATION
AND AWAY FROM EVAPORATOR
SLOPE DRAIN PIPE DOWN
WITH ACCESS
( 1/4 INCH PER FOOT OF PIPE )
