MS Series Medium Profile Unit Coolers (E270190_H) 8
3.4 CHECK VALVE
Check valves kit brazed to the pipe at the field, refer to FIGURE 6.
TABLE 2: CHECK VALVES KITS
Gas Inlet
166, 178, 195, 212,
223, 239, 323, 356,
0.500
594, 602, 643, 669,
CE269382 0.875
4 RIGGING INSTRUCTIONS
4.1 RIGGING INSTRUCTIONS
MS units tend to be a long and heavy object. Jobsite requirements will affect the method of moving and lifting the
unit into place. Carefully consider the support that is required to lift and move the unit. Under no circumstances
should the shipping skid be used for lifting the unit. To ensure that the unit is not bowed or damaged when being
lifted into place from above, all leg or hanger points should be used. If the unit is being lifted into place from
underneath, a level support directly under all of the shipping legs is required to adequately steady the unit as it is
lifted to the hanger rods.
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 27” from the wall to assure unrestricted air intake.
5.2 MOUNTING
Install the expansion valve and equalizer connection before hanging the unit cooler. See section 2.3.
The unit cooler should be suspended with 3/8” diameter 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 than the bottom of the electrical
end of the unit. If mounted to a level ceiling the hanging brackets provide the slope. Mount to ceiling with
hanging brackets provided. Suspended units must have sufficient clearance above the unit for cleaning the top.
Remove shipping legs after installation.
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