LIMITATIONS
These units must be installed in accordance with applicable
national and local or municipal safety codes.
Refer to Table 1 for Unit Application Data and to Table 2 for
Electric Heat Application Data.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer's and/or the customer's
expense.
LOCATION
Use the following guidelines to select a suitable location for
these units.
1. Unit is designed for outdoor installation only.
2. Outdoor coils must have an unlimited supply of air.
3. For ground level installation, use a level concrete slab with
a minimum thickness of 102mm (4"). The length and width
should be at least 152mm (6") greater than the unit base
rails. Do not tie slab to the building foundation.
4. Roof structure must be able to support the weight of the unit
and its options and/or accessories. Unit must be installed
on a solid level roof curb or appropriate angle iron frame.
CAUTION: If a unit is to be installed on a roof curb or spe-
cial frame other than a YORK roof curb, gasket-
ing must be applied to all surfaces that come in
contact with the unit underside.
5. Maintain level tolerance to 13mm (1/2") maximum across
the entire length or width of the 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. Spreaders, whose length exceeds
the largest dimension across the unit, MUST be used across
the top of the unit. Refer to Figure 1.
Units may also be moved or lifted with a forklift, from the front or
rear only, providing that an accessory skid is used.
LENGTH OF FORKS MUST BE A MINIMUM OF 2286mm
(90").
Refer to Table 3 for unit weights and to Figure 2 for approximate
center of gravity.
CLEARANCES
All units require certain clearances for correct operation and
service. Refer to the unit dimensions detail, Figure 7, for the
clearances required for combustible construction, servicing,
and unit operation.
WARNING: Do not permit overhanging structures or shrubs to
obstruct outdoor air discharge outlet.
DUCTWORK
A closed return duct system shall be used. This does not
preclude use of economizers or outdoor fresh air intake. The
supply and return air duct connections at the unit should be
made with flexible joints to minimize noise.
The supply and return air duct systems should be designed for
the airflow and static requirements of the job. They should NOT
be sized to match the dimensions of the duct connections on
the unit.
CAUTION: When fastening ductwork to side duct flanges on
unit, insert screws through duct flanges only. DO
NOT insert screws through casing.
Outdoor ductwork must be insulated and water-
proofed.
Refer to Figure 7 for information concerning side and bottom
supply and return air duct openings.
035-18895-000-A-0902
Unitary Products Group
3
INSTALLATION
Voltage Variation (Min. / Max.)
400 / 415V
360 / 456V
Wet Bulb Temperature of Air on
Indoor Coil, (Min. / Max.)
°
C
14 / 22
°
F
57 / 72
Dry Bulb Temperature of Air on
Outdoor Coil, (Min./ Max.)
°
C
7 / 52
°
F
45 / 125
TABLE 1 - UNIT APPLICATION DATA
FIG. 1 - TYPICAL RIGGING
FIG. 2 - CENTER OF GRAVITY
2337
(92")
3181 (125-1/4") (180)
OUTDOOR COIL
END OF UNIT
1143
(45")
1524
(60")
