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INSTALLATION
MOUNTING
VERTICAL
UNITS
GB Vertical
units
up to five tons are available
in left or right air
return configurations.
Vertical
units
should be mounted
level on a
vibration
absorbing
pad slightly
larger
than the base
to nfininfize
vibration
transmission
to the building
structure.
It is not necessary
to anchor the unit to the floor.
See Fig. 5.
CONDENSATE
DRAIN
IMPORTANT:
If
equipped
with
float
style
condensate
overflow
switch,
final adjustment
must
be made
in the field.
CONDENSATE
DRAIN
CONNECTION
VENT
(OPTIONAL)
O
O
I TRAP
DOWN
2" MIN.
SLOPE
DOWN
MIN.1/8"
PER FOOT
Vl B RATI 0 N
PAD
'_
FULL SIZE
Fig. 5 - Vibration
Absorbing
Pad
A14151
MOUNTING
HORIZONTAL
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 manufacturer
recommends
these be
attached
to the unit corners
by hanger
bracket
kits (see Fig. 6). The
rods nmst be securely
anchored
to the ceiling.
Refer to the hanging
bracket
assembly
and installation
instructions
for details.
A14165
Fig. 6 - Hanger
Bracket
Kit
IMPORTANT:
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
unit. In this case, the unit
should
be
set in a full size secondary
drain
pan on top of a
vibration
absorbing
mesh.
The Secondary
drain pan prevents
possible
condensate
overflow
or
water leakage
damage
to the ceiling.
The secondary
drain
pan is usually
placed
on a plywood
base
isolated
from
the ceiling
joists
by additional
layers
of vibration
absorbing
mesh.
In both cases,
a 3/4"drain
connected
to this secondary
pan should
be run to an eave at a location
that will be noticeable.
If the unit is
located
in a crawl space, the bottom
of the unit must be at least 4"
above grade to prevent
flooding
of the electrical
parts due to heavy
rains.
A14118
Fig. 7 - Condensate
Drain
A drain line nmst be connected
to the heat pump and pitched
away
from
the unit a minimum
of 1/8" per foot to allow the condensate
to flow away from the unit,
IMPORTANT:
This
connection
must
be in conformance
with
local
plumbing
codes.
A
trap
must
be
installed
in
the
condensate
line to insure
free condensate
flow.
Heat Pumps
are
not internally
trapped.
A vertical
air vent is sometimes
required
to avoid
air pockets
(see
Fig. 7). The length of the trap depends
on the amount of positive
or
negative
pressure
on the drain
pan. A second
trap must
not be
included.
The horizontal
unit should be pitched
approximately
1/4" towards
the drain in bot directions
to facilitate
condensate
removal
(see Fig.
8).
/.
A14152
Fig. 8 - Horizontal
[]nit Pitch
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