Condensing Section; Installation; Mounting Vertical Air Handler Units; Mounting Horizontal Air Handler Units - Bosch SM024 Installation, Operation And Maintenance Manual

SM AH Series Heat Pump

Condensing Section

Locate the condensing section in an area that
provides sufficient room to make water and
electrical connections, and allows easy removal of
the access panels, for service personnel to
perform maintenance or repair.
Consult the condensing section of this manual for
more information, or your CS factory's tech
support.
AH
Figure # 2

INSTALLATION

Remove all shipping blocks under blower
housing.
The installer should comply with all local codes
and regulations which govern the installation of
this type of equipment. Local codes and
regulations take precedent over any
recommendations contained in these instructions.
In lieu of local codes, the equipment should be
installed in accordance with the recommendations
made by the National electric code, and in
accordance with the recommendations made by
the National Board of Fire Underwriters. All local
seismic codes for seismic restraint of equipment,
piping, and duct work shall be strictly adhered to.
Condensing Section
Locate the condensing section in an area that
provides sufficient space to make water and
electrical connections, allowing easy removal of
the access panels. A 36" clearance in front of the
unit is recommended. This will ensure proper work
space for service personnel to perform
maintenance or repair.
If the condensing section is installed in a location
where ambient temperatures can fall below
freezing, some form of freeze protection should be
employed such as anti-freeze. Where the use of
anti-freeze is not possible for example in a ground
water application the fluid circulating pump should
operate continuously to prevent possible
condenser freeze-up and to optimize overall
system performance. Consult the factory in these
instances for guidance.

Mounting Vertical Air Handler Units

CS
Vertical units should be mounted level on a
vibration absorbing pad slightly larger than the
base to minimize vibration transmission to the
building structure. (See Figure #3)

Mounting Horizontal Air Handler Units

While horizontal units may be installed on any level
surface strong enough to hold their weight, they
are typically suspended above a ceiling by
threaded rods. The rods are usually attached to the
unit corners by hanger bracket kit. The rods must
be securely anchored to the ceiling. Refer to the
hanging bracket assembly and installation
instructions for details. All units require four
mounting brackets at the corners. Horizontal units
installed above the ceiling must conform to all
local codes. An auxiliary drain pan if required by
code, should be at least four inches larger than the
bottom of the heat pump. Plumbing connected to
the heat pump must not come in direct contact with
joists, trusses, walls, etc.
Some applications require an attic floor
installation of the horizontal air handler unit. In
this case the unit should be set in a full size
secondary drain pan on top of a vibration
absorbing mesh.
Water freezes at 32°F. Frozen water coils
are not covered under the limited product
warranty. It is the installer's responsibility
to insure that the condensing section is
installed in a location or has the proper
controls to prevent rupturing the water coil
due to freezing conditions.
Do not remove the protective caps or plugs from
the service valves until the refrigerant lines are
run and ready for final connection.
Figure # 3
Installation | 5
Vibration Pad
Full Size
8733920846 (2015/01)