5
Rooftop Installation
•The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
•To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
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
GENERAL INFORMATION
WARNING
TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DUE TO FIRE,
EXPLOSIONS, SMOKE, SOOT, CONDENSATION, ELECTRIC SHOCK OR CARBON
MONOXIDE, THIS UNIT MUST BE PROPERLY INSTALLED, REPAIRED, OPERATED,
AND MAINTAINED.
This unit is approved for outdoor installation ONLY. To assure
that your unit operates safely and efficiently, it must be installed,
operated, and maintained in accordance with these installation and
operating instructions, all local building codes and ordinances, or in
their absence, with the latest edition of the National Fuel Gas Code
NFPA54/ANSI Z223.1 and National Standard of Canada CAN/CSA
B149 Installation Codes.
The heating and cooling capacities of the unit should be greater
than or equal to the design heating and cooling loads of the area to
be conditioned. The loads should be calculated by an approved
method or in accordance with A.S.H.R.A.E. Guide or Manual J -
Load Calculations published by the Air Conditioning Contractors of
America. Obtain from:
American National Standards Institute
1430 Broadway
New York, NY 10018