9
Figure 6. Roof Curb Installation.
Rigging and Hoisting — The unit should be lifted using
slings and spreader bars. The spreader bars are necessary
to prevent damaging the top of the unit’s cabinet. Make
sure
that the lifting equipment is adequate for the load.
Refer to Figure 1 for unit weights. Keep the unit in an
upright position at all times. The rigging must be located
outside the unit’s center of gravity. Refer to Figure 1 for
center of gravity location. For rooftop installations,
remove and discard the two supports attached beneath
the unit.
!
WARNING:
To avoid the risk of property damage or personal
injury, it is the rigger’s responsibility to ensure
that whatever means are used to hoist the unit
are safe and adequate.
!
CAUTION:
All panels must be securely in place when rigging
and hoisting.
Rooftop — For rooftop installations (See Figure 6) use the
appropriate accessory roof curb and follow all instructions
included with it. Make sure the supports beneath the unit
have been removed. Locate the unit according to local
building codes and ordinances. The curb must be level to
insure proper condensate drainage.
The roof must be capable of handling the weight of the unit.
See Figure 1 for unit weights. Reinforce the roof if
required.
!
WARNING:
Do not place combustible material on or against
the unit cabinet. Do not place combustible
materials, including gasoline and any other
flammable vapors and liquids, in the vicinity of
the unit.
Figure 4. Condensate Drain.
filter(s) and has no factory equipped means for
accommodating internal air filter(s). For downflow
installations only, an internal filter accessory kit can be
ordered. For horizontal installations, the air filter system
must be installed in the return air ductwork. All return air
to this unit must pass through the filter(s) before entering
the evaporator coil.
Condensate Drain — Condensate is removed from the
unit through the 3/4" female pipe fitting located on the front
side of the unit. (See Figure 4.) Install a 2 inch deep
condensate trap in the drain line of the same size and prime
with water.
When connecting rigid drain line, hold the female fitting with
a wrench to prevent twisting. Do not over tighten! Refer
to local codes and restrictions for proper condensate
disposal requirements.
UNIT INSTALLATION
Ground Level — When installing the unit at ground level
(See Figure 5), provide a concrete mounting pad separate
from the building foundation. The pad must be level to insure
proper condensate disposal and strong enough to support the
unit’s weight (Refer to Figure 1). Make sure the slab is a
minimum of 2" above the grade and in an area that drains well.
Condensate Drain
Figure 5. Ground Level Installation.
2"
2”