RefPlus EK Series - Installation; Complete Pre-Installation Inspection; Installation Location; Mounting

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6. INSTALLATION
6.1 COMPLETE PRE-INSTALLATION INSPECTION
Check all items against the bill of lading to make sure all
crates and boxes have been received. Check unit for
possible damage incurred during shipment. Check for
concealed damage. If there is any shortage or damage, le
a freight claim immediately with the transport company.
Do not return damaged equipment to the factory without
prior approval. A Return Material Authorization (RMA)
must be obtained in advance. Items returned without an
RMA label will be refused. Also verify that the nameplate
electrical requirements match the available power supply.
All RefPlus units are pressurized with dry air. A lack of
pressure does not indicate a leak. Check the coil for
possible leaks before installing or returning the unit.
The following essential rules should be complied with
when installing the unit:
• All circuits, including controls and safety switches, must
be correctly connected according to the wiring diagram
supplied with the unit and/or found in this manual.
• The factory wiring cannot be modied without RefPlus'
written approval.
• All units and equipment must be installed with the
specied clearances.
• System piping must be in accordance with proper
refrigeration practices.
• Inert gas must be charged into the system piping
during brazing.
6.2 INSTALLATION LOCATION
All units should be installed ush against the ceiling. The
unit must be level in all directions to ensure proper drainage
of condensate. Refer to Figure 2 and Figure 3 for unit
clearance information.
When deciding on the location of the unit, consider the
following:
• Location of aisle racks
• Location relative to compressor for minimum pipe runs
• Location of condensate drains for minimum run
• The air pattern must cover the entire room
• Never locate units over doors or door openings
• Allow sufcient space between rear of unit and wall to
permit free return of air
IMPORTANT: Avoid placement of the unit directly above
doors and door openings where low temperature is being
maintained. Position the unit so the discharge air blows
above the doors. Install a bafe if door extends above the
blower level. Leave space equal to unit height between
bottom of unit and product. Do not stack product in front
of fans.
EK, EM and EJ units should be located in a position where
the air discharge is towards the door.
The coil face on units should be away from the wall by:
• EK, EM & EK models: 1/2 coil unit height minimum -
unit height recommended
• LM models: 6 ft minimum - 40 ft maximum
• LJ & DJ models: 10 ft minimum - 40 ft maximum
NOTE: Units with electric defrost require a minimum
clearance equal to the width (W) of the unit at the left
end when facing the fans to allow removal of defrost
heaters, as shown in Figure 2 and Figure 3.
6.3 MOUNTING
Most units can be mounted with either bolts or steel rod
hangers. When mounting unit to ceiling, use Table 1 below
to determine proper rod or bolt size. Use steel rods with
a minimum 9 Kpsi. This information should be used as
reference only.
STEEL ROD
OR BOLT
SIZE
MAXIMUM WEIGHT PER ANCHOR POINT
5/16" 200 lbs
3/8" 300 lbs
1/2" 550 lbs
Table 1 Bolt and rod size chart
The evaporator must be mounted level for proper condensate
draining. Adequate support must be provided to hold the
weight of the unit.
NOTE: The area above the unit must be sealed or
accessible to facilitate hand cleaning without the use
of tools in order to comply with National Sanitation
Foundation (NSF) Standard 7.
INSTALLATION