FORM 100.10-NOM2
11
YORK INTERNATIONAL
INSTALLATION
Note:
When an MB 100% R/A, 0% O/A Inlet Section is specified, a
Rain Hood is not provided. Clearance on the side of the unit
opposite the coil connection should be equal to or greater than
the width of the unit to allow for coil removal.
FIG. 3 –
SERVICE CLEARANCE
LOCATION
The CurbPak should be installed on a roof that is struc-
turally strong enough to support the weight of the unit
with a minimum of deflection. Extreme caution should
be taken when the unit is mounted on a wood struc-
tured roof. It is recommended that the unit(s) be in-
stalled not more than 15 feet from the main support
beam to provide proper structural support and to mini-
mize the transmission of sound and vibration.
Location of unit(s) should also be away from building
flue stacks or exhaust ventilators to prevent possible
reintroduction of contaminated air through the outside
air intakes.
(See Figure 3 for service clearances.)
Allow sufficient space around the unit
for removing the access panels and
various parts of the unit. A minimum
clearance equal to the width of the
unit must be provided on one side of
the unit for removing the coil.
ROOF PITCH LIMITATIONS (1/2 Inch/Foot)
Although level installations are preferred, YORK units
can be installed in any direction on a roof that is pitched
up to 1/2 of an inch per foot.
When a unit is to be pitched across
its width with the condensate drain
connection on the high side, that pitch
should be limited to 1/4 of an inch per
foot to assure proper drainage of con-
densate from the drain pan.
When a roof is pitched more than 1/2 of an inch per
foot, units should be mounted on structural steel above
the finished roof. These units are to be supported as
required by the unit sections.
CURB INFORMATION
The curb will be shipped unassembled. It will be neces-
sary to assemble the curb parts on the job site. Each
part of the curb is identified. Assembly instructions are
shipped with each curb package. It is important the curb
be installed level and square (see roof pitch limitations).
When installing a curb, obtain a copy of the approved
submittal, as each unit and actual curb installation may
not be identical. Do not use this typical information to
install your curb.
Should there be any questions as to
the number of pieces of curb parts or
assembling of the curb, notify YORK
immediately.
2
LD06328
(
