Comfort-Aire HBH Series 1/2 to 5 Ton - Manual (Page 11)

Heat Controller, Inc. HBH/V COMPACT IOM Instructions
Vertical Installation
Flexible canvas duct
connector to reduce
noise and vibration
Use turning vanes in
supply transition
Internally insulate supply
duct for first 4’ [1.2 m] each way
to reduce noise
Internally insulate return
transition duct to reduce
noise
Rounded return
transition
Flexible canvas duct
connector to reduce
noise and vibration
Use turning vanes in
supply transition
Internally insulate supply
duct for first 4’ [1.2m] each
way to reduce noise
Internally insulate return
transition duct to reduce
noise
Rounded return
transition
Rev.: 6/2/09S
Rev.: 6/2/09S
Figure 7: Vertical Unit Mounting
Figure 8: Typical Vertical Unit Installation Using
Ducted Return Air
bloque o del ladrillo o sacado
Coj’n del aire o sacado
Bloque o ladrillo concreto
Air Pad or Extruded
polystyrene insulation board
Vertical Unit Location
Units are not designed for outdoor installation. Locate
the unit in an INDOOR area that allows enough space
for service personnel to perform typical maintenance
or repairs without removing unit from the mechanical
room/closet. Vertical units are typically installed in a
mechanical room or closet. Never install units in areas
subject to freezing or where humidity levels could cause
cabinet condensation (such as unconditioned spaces
subject to 100% outside air). Consideration should be
given to access for easy removal of the filter and access
panels. Provide sufficient room to make water, electrical,
and duct connection(s).
If the unit is located in a confined space, such as a closet,
provisions must be made for return air to freely enter
the space by means of a louvered door, etc. Any access
panel screws that would be difficult to remove after the
unit is installed should be removed prior to setting the
unit. Refer to Figures 7 and 8 for typical installation
illustrations. Refer to unit submittal data or engineering
design guide for dimensional data.
1. Install the unit on a piece of rubber, neoprene or
other mounting pad material for sound isolation. The
pad should be at least 3/8” [10mm] to 1/2” [13mm] in
thickness. Extend the pad beyond all four edges of
the unit.
2. Provide adequate clearance for filter replacement
and drain pan cleaning. Do not block filter access
with piping, conduit or other materials. Refer to
unit submittal data or engineering design guide for
dimensional data.
3. Provide access for fan and fan motor maintenance
and for servicing the compressor and coils without
removing the unit.
4. Provide an unobstructed path to the unit within the
closet or mechanical room. Space should be sufficient
to allow removal of the unit, if necessary.
5. In limited side access installations, pre-removal of the
control box side mounting screws will allow control box
removal for future servicing (TC units only).
6. Provide access to water valves and fittings and
screwdriver access to the unit side panels, discharge
collar and all electrical connections.
HB