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Roof Curb Installations Only:
•
Sufficient structural support must be determined prior
to locating and mounting the curb and package unit.
•
Ductwork must be constructed using industry
guidelines. The duct work must be placed into the
roof curb before mounting the package unit.
•
Curb insulation, cant strips, flashing and general
roofing material are furnished by the contractor.
Roof Curb Installation
RIGGING DETAILS
Refer to the Unit Installation Instructions for proper unit
installation. Curbing must be installed in compliance with
the National Roofing Contractors Association Manual.
Lower unit carefully onto roof mounting curb. While rigging
unit, center of gravity will cause condenser end to be lower
than supply air end.
GAS PIPING
IMPORTANT NOTE: This unit is factory set to operate on
natural gas at the altitudes shown on the rating plate.
The rating plate is stamped with the model number, type of
gas and gas input rating. Make sure the unit is equipped
to operate on the type of gas available. Conversion to
LP gas is permitted with the use of the factory authorized
conversion kit LPM-08.
INLET GAS PRESSURE
Natural
Propane
Inlet Gas Pressure be within the Minimum and the
Maximum Value Shown in Table Above.
The minimum supply pressure should not vary from that
shown in the table above because this could prevent the
unit from having dependable ignition. In addition, gas input
to the burners must not exceed the rated input shown
on the rating plate. Over firing of the unit could result in
premature heat exchanger failure.
High Altitude Derate (U.S. Installations Only)
IMPORTANT NOTE: Installation of this gas/electric
package unit at altitudes above 2000 ft (610 m) shall
be made in accordance with the Listed High Altitude
Conversion Kit.
L'installation de ce générateur de chaleur à des altitudes
supérieures à 2000 pi (610 m) doit être effectuée
conformément aux instructions accompagnant la trousse
de conversion pour haute altitude fournie avec cet appareil.
7
Rigging
Min. 5.0" W.C., Max. 10.0" W.C.
Min. 11.0" W.C., Max. 13.0" W.C.
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