520413-BIM-A-0209
Johnson Controls Unitary Products
7
Unit Installation
Location
These evaporator blowers are not designed for outdoor
installation. They must be located inside a building structure,
either inside or outside the conditioned space where they are
protected from rain and other moisture.
The unit should be located as close to the condensing unit as
practical and positioned to minimize bends in the refrigerant
piping.
Units being installed vertically or horizontally can be set directly
on a floor or platform, or supported by metal or wooden beams.
Rigging
Care must be taken when moving the unit. Do not remove any
packaging until the unit is near the place of installation.
SPREADER BARS SHOULD BE USED BETWEEN THE
SLINGS TO PREVENT CRUSHING THE UNIT FRAME OR
PANELS. When preparing to move the unit, always determine
the center of gravity of the unit in order to equally distribute the
weight. Rig the unit by attaching chain or cable slings around
the bottom skid. A lift truck may be used to raise a unit to a
suspended location. Refer to Table 4 for unit weights.
Clearances
NOTE
:
If the coil has to be removed, the blower section can be unbolted
and set aside and the coil can be lifted out the top of the
evaporator section.
A 24-inch clearance is required on the end with the piping
connections and the supply air blower motor to properly service
and maintain the unit.
Some clearance will also be required for the duct and power
wire connections.
Table 3:
Minimum Clearances
Minimum Clearances
Top with Supply Air Opening
1
1. This dimension will vary if an electric heater, a supply air plenum or a
base is used.
24”
Front with Return Air Opening
24”
Right Side with Access for Piping, Power &
Control Wiring Connections
2
2. This dimension is required for normal installation and service.
24”
Left Side
24”
Rear
3
3. Although no clearance is required for service and operation, some
clearance may be required for routing the power and control wiring.
N/A
Bottom
4
4. Allow enough clearance to trap the condensate drain line.
N/A
