Comfort-Aire HEH Series 2 to 5 Tons - Manual (Page 11)

11
Heat Controller, LLC. HEV/H SERIES Installation, Operation & Maintenance
VERTICAL INSTALLATION
Drain
Connection
1/4” (6.4mm) pitch
toward drain for drainage
Figure 5: Hanger Bracket
Figure 6: Horizontal Unit Pitch
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Horizontal Unit Location
Packaged 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 ceiling. Horizontal
units are typically installed above a false ceiling or in a ceiling
plenum. 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 fi lter and access panels. Provide suffi cient room to make
water, electrical, and duct connection(s).
If the unit is located in a confi ned space, such as a closet,
provisions must be made for return air to freely enter the space
by means of a louvered door or any other method. Any access
panel screws that would be diffi cult to remove after the unit is
installed should be removed prior to setting the unit. Refer to
Figures 7a and 7b for an illustration of a typical installation.
Refer to unit catalog specifi cations for dimensional data.
Conform to the following guidelines when selecting a
unit location:
1. Provide a hinged access door in concealed-spline or
plaster ceilings. Provide removable ceiling tiles in T-bar
or lay-in ceilings. Refer to horizontal unit dimensions for
specifi c series and model in unit catalog specifi cations.
Size the access opening to accommodate the service
technician during the removal or replacement of the
compressor and the removal or installation of the unit
itself.
2. Provide access to hanger brackets, water valves and
fi ttings. Provide screwdriver clearance to access panels,
discharge collars and all electrical connections.
3. DO NOT obstruct the space beneath the unit with piping,
electrical cables and other items that prohibit future
removal of components or the unit itself.
4. Use a manual portable jack/lift to lift and support the
weight of the unit during installation and servicing.
The installation of geothermal heat pump units and all
associated components, parts and accessories which
make up the GHP system shall be in accordance with the
regulations of ALL authorities having jurisdiction and MUST
conform to all applicable codes. It is the responsibility of
the installing contractor to determine and comply with ALL
applicable codes and regulations.
Mounting Horizontal Units
Horizontal units have hanger kits pre-installed from the
factory as shown in Figure 5. Figures 7a and 7b shows a
typical horizontal unit installation.
Horizontal heat pumps are typically suspended above a
ceiling or within a soffi t using fi eld supplied, threaded rods
sized to support the weight of the unit.
Use four (4) fi eld supplied threaded rods and factory provided
vibration isolators to suspend the unit. Hang the unit clear
of the fl oor slab above and support the unit by the mounting
bracket assemblies only. DO NOT attach the unit fl ush with
the fl oor slab above.
Pitch the unit toward the drain as shown in Figure 6 to
improve the condensate drainage. On small units (less
than 2.5 Tons/8.8 kW) ensure that unit pitch does not cause
condensate leaks inside the cabinet.
NOTE: The top panel of a horizontal unit is a structural
component. The top panel of a horizontal unit must never
be removed from an installed unit unless the unit is properly
supported from the bottom. Otherwise, damage to the unit
cabinet may occur.