Specifications

035-17377-000 REV A (0201)
Unitary Products Group 9
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. 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.
5. 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.
Before lifting, make sure the unit weight is distributed equally
on the rigging cables so it will lift evenly.
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 6: 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
*
125
*.
A low ambient accessory is available for operation
down to -20°F.
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.
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 5 : UNIT 4 POINT LOAD
TABLE 7: UNIT WEIGHTS
Model
Shipping Weight
*
(lb.) Operating Weight
†
(lb.)
DM078
1045 1041
DM090
1056 1051
DM102
1089 1084
DM120
1121 1116
DM150
1200 1195
DH078
1104 1099
DH090
1108 1103
DH102
1178 1173
DH120
1212 1207
DH150
1202 1197
Econ.
85 84
w/ PE
150 148
Elec. Heat
2
49 49
*.
Weights include largest gas heat option.
†.
54kW heater.