035-19046-002-B-0104
Unitary Products Group
11
LOCATION
Use the following guidelines to select a suitable location for
these units:
1.
Unit is designed for outdoor installation only.
2.
Condenser coils must have an unlimited supply of air.
Where a choice of location is possible, position the unit
on either north or east side of building.
3.
Suitable for mounting on roof curb.
4.
For ground level installation, use a level concrete slab
with a minimum thickness of 4 inches. The length and
width should be at least 6 inches greater than the unit
base rails. Do not tie slab to the building foundation.
5.
Roof structures must be able to support the weight of the
unit and its options/accessories. Unit must be installed
on a solid, level roof curb or appropriate angle iron
frame.
6.
Maintain level tolerance to 1/2” across the entire width
and length of unit.
RIGGING AND HANDLING
Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. Rig
the unit by attaching chain or cable slings to the lifting holes
provided in the base rails. Spreader bars, whose length
exceeds the largest dimension across the unit, MUST be
used across the top of the unit.
Units may be moved or lifted with a forklift. Slotted openings
in the base rails are provided for this purpose.
LENGTH OF FORKS MUST BE A MINIMUM OF 60
INCHES.
TABLE 1:
UNIT VOLTAGE LIMITATIONS
Power Rating
*
*.
Utilization range “A” in accordance with ARI Standard 110.
Minimum
Maximum
208/230-3-60
187
252
460-3-60
432
504
575-3-60
540
630
TABLE 2:
UNIT TEMPERATURE LIMITATIONS
Temperature
Min.
Max.
Wet Bulb Temperature (
°
F) of Air on
Evaporator Coil
57
72
Dry Bulb Temperature (
°
F) of Air on
Condenser Coil
0
*
*.
A low ambient accessory is available for operation
down to -20°F.
125
Excessive exposure of this furnace to contaminated
combustion air may result in equipment damage or
personal injury. Typical contaminates include: per-
manent wave solution, chlorinated waxes and clean-
ers, chlorine based swimming pool chemicals, water
softening chemicals, carbon tetrachloride, Halogen
type refrigerants, cleaning solvents (e.g. perchloro-
ethylene), printing inks, paint removers, varnishes,
hydrochloric acid, cements and glues, antistatic fab-
ric softeners for clothes dryers, masonry acid wash-
ing materials.
If a unit is to be installed on a roof curb other than a
YORK roof curb, gasketing must be applied to all
surfaces that come in contact with the unit under-
side.
Before lifting, make sure the unit weight is distrib-
uted equally on the rigging cables so it will lift evenly.
All panels must be secured in place when the unit is
lifted.
The condenser coils should be protected from rig-
ging cable damage with plywood or other suitable
material.
FIGURE 4 -
UNIT 4 POINT LOAD
A
D
B
C
LEFT
FRONT
