Unit Installation
NOTICE
Horizontal units installed above the ceiling must conform to all
local codes. An auxiliary drain pan, if required by code, must
be at least four inches larger than the bottom perimeter of the
heat pump.
Plumbing connected to the heat pump must not come in direct
contact with building structure or its components (such as joists,
trusses, walls, etc.).
Some applications require an attic floor installation of the HZ
unit. In
those cases, the unit must be set in a full-sized secondary
drain pan on top of a vibration absorbing pad. The secondary
drain pan prevents possible condensate overflow or water
leakage damage to the ceiling. The secondary drain pan is
normally placed on a plywood base isolated from the ceiling joists
by additional layers of vibration absorbing pads. In both cases, a
3/4” drain connected to this secondary pan must be run to an
eave at a location that will be noticeable.
The HZ units condensate drain pans are NOT internally
sloped.
NOTICE
HZ units must be installed pitched 1/4” towards the
condensate drain connection in both directions to facilitate
condensate removal. (See Fig. 5.)
Fig. 6 Pitched Unit
NOTICE
If the unit is located in a crawl space, the bottom of the unit
must be at least four inches above grade to prevent flooding of
the electrical parts due to heavy rains.
5.5.3 Installing the Hanging Bracket Kit
All HZ units come with hanging bracket installation kit to facilitate
suspend
ed unit mounting using threaded rod. Hanging brackets
are to be installed as shown in Fig. 7.
Fig. 7 Hanging Brackets Locations
The front brackets can be
mounted either in the
front or side locations.
This kit includes the following:
(5) Brackets
(5) Rubber Vibration Isolators
(8) Screws: #10 x 1/2
(10) Bolts: 1/4–28 x 1/2” Hex bolt (Note: Not needed for this
series.)
T
he following are needed and are to be field provided:
• Threaded rod (3/8” max. dia.)
• Washers (1-3/4” min. O.D.)
• Hex nuts
WARNING
Follow all applicable codes and requirements when hanging
this unit and selecting the threaded rod material, etc.
1. Remove and discard factory provided screws from locations
where hanging brackets will be installed as shown in Fig. 8.
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CL Series Heat Pumps — 8733838716 (2024/05)
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