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Horizontal Installation
Drain
Connection
1/4” (6.4mm)
for drainage
Figure 5: Hanger Bracket
Figure 6: Horizontal Unit Pitch
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Horizontal 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 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 suf
fi
cient room to make
water, electrical, and duct connection(s).
If the unit is located in a con
fi
ned 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 dif
fi
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
speci
fi
cations catalog for dimensional data.
Conform to the following guidelines when selecting
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
speci
fi
c series and model in unit speci
fi
cations catalog.
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 installation 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 sof
fi
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.
