PRODUCT DESIGN
Outside Slab Installation -Multi-positional (M)
NOTE: Roof overhang should be no more than 36" and provi- sions made to deflect the warm discharge air out from the overhang.
Minimum clearances are required to avoid air recirculation and keep the unit operating at peak efficiency.
Roof Curb
In installations where the unit is installed above ground level and not serviceable from the ground (Example: roof top in- stallations) the installer must provide service platform for ser- vice person with rails or guards in accordance with local codes or ordinances, or, in their absence, with the latest edition of the Uniform Mechanical Code Section 305.
NOTE: Unit can also use roof curb (and platform for leveling, where necessary) to utilize bottom discharge.
WARNING
TO PREVENT POSSIBLE PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE LIFTING AND MOVING IF A CRANE IS USED, PLACE THE UNIT IN AN ADEQUATE CABLE SLING.
IMPORTANT: If using bottom discharge with roof curb, ductwork should be attached to the curb prior to installing the unit.
NOTE: Single phase models require installation of horizontal duct kit #20464501PDGK (medium chassis) and #20464502PDGK (large chassis) when using bottom dis- charge.
Refer to Roof curb Installation Instructions for proper curb installation. Curbing must be installed in compliance with the National Roofing Contractors Association Manual.
Rooftop Installation - -Multi-positional (M)
NOTE: To ensure proper condensate drainage, unit must be installed in a level position.
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