Nortek B6BW Series, Installation Instructions Manual

Page: 6 / 20

6
AIR HANDLER INSTALLATION
The B6BW Air Handler is shipped ready for vertical upflow
installation and can be mounted directly on a wall or
recessed between framing studs as shown in Figure 1 .
Units are also approved for closet or alcove installation
with zero clearance to combustibles. See Table 1 (page
4) for required installation clearances. This appliance
is only for indoor use.
• The unit must be leveled at installation and attached to
a properly installed duct system.
• The surface that the air handler is mounted on must
provide sound physical support of the unit.
• The air handler must be installed so that all electrical
components are protected from water.
• If a louvered door is installed across the front of this
unit, the appliance must be mounted flush or behind
front edge of finished wall. See Figure 1 .
Packaging Removal
Remove the shipping crate and User’s Manual from
the equipment. Take care not to damage the tubing
connections when removing the crate.
Mounting Applications
Units have a bottom and/or front return. Units are shipped
for installation in a front return application. Front close-
off panel (if supplied) may be discarded. If installed in a
bottom return application, attach bottom access panel to
the front of the unit below the top service panel.
If the air handler is recessed in a wall, attachment to the
framing studs are through the inside of the front flange.
For hanging applications, these units are provided with
2-piece offset hanging bracket attached to the rear of the
cabinet. See Figure 1 .Mounting bracket dimensions are
shown in Figure 4 (page 13) .
Connecting Refrigerant Tubing
WARNING:
NITROGEN
HEALTH
FLAMMABILITY
REACTIVITY
0 Minimal Hazard 1 Slight Hazard
1
0
0
The evaporator coil is shipped from the factory
with a nitrogen charge. Use caution when
preparing coils for field connections. If repairs
make it necessary for evacuation and charging,
it should only be attempted by qualified,
trained personnel thoroughly familiar with this
equipment. Some local codes require licensed
installation service personnel to service this
type of equipment. Under no circumstances
should the equipment owner attempt to install
and/or service this equipment. Failure to comply
with this warning could result in equipment
damage, personal injury, or death.
18"
(457 mm)
24” Clearance from
nearest wall or
partition
Full Louvered
Door
Wall
Mount
Closet
Installation
Alcove
Installation
6”
(152mm)
Typical Closet Door
with Return Air Grill
Installed
OR
Recessed
Wall
Wall
2-Piece
Mounting
Bracket
24” Clearance from
nearest wall or
partition
Figure 1. Unit Installation