NOTE: When inspecting the unit for transportation damage, remove all packaging materials. Recycle or dispose of the packaging material according to local codes.
Carefully read all instructions for the installation prior to in- stalling unit. Ensure each step or procedure is understood and any special considerations are taken into account be- fore starting installation. Assemble all tools, hardware and supplies needed to complete the installation. Some items may need to be purchased locally.
UNIT LOCATION
WARNING
TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.
IMPORTANT NOTE: Remove wood shipping rails prior to installation of the unit.
ALL INSTALLATIONS:
NOTE: Appliance is shipped from factory for vertical duct application.
Proper installation of the unit ensures
•For proper operation and condensate drainage, the unit must be mounted level.
•Do not locate the unit in an area where the outdoor air will be frequently contaminated by compounds containing chlorine or fluorine. Common sources of such compounds include swimming pool chemicals and chlorine bleaches, paint stripper, adhesives, paints, varnishes, sealers, waxes (which are not yet dried) and solvents used during construction and remodeling. Various commercial and industrial processes may also be sources of chlorine/fluorine compounds.
•To avoid possible illness or death of the building occupants, do NOT locate outside air intake device (economizer, manual fresh air intake, motorized fresh air intake) too close to an exhaust outlet, gas vent termination, or plumbing vent outlet. For specific distances required, consult local codes.
•Allow minimum clearances from the enclosure for fire protection, proper operation, and service access (see Unit Clearances). These clearances must be permanently maintained.
•When the unit is heating, the temperature of the return air entering the unit must be between 50°F and 100°F.
GROUND LEVEL INSTALLATIONS ONLY:
•When the unit is installed on the ground adjacent to the building, a level concrete (or equal) base is recommended. Prepare a base that is 3” larger than the package unit footprint and a minimum of 3” thick.
•The base should also be located where no runoff of water from higher ground can collect in the unit.
ROOF TOP INSTALLATIONS ONLY:
•To avoid possible property damage or personal injury, the roof must have sufficient structural strength to carry the weight of the unit(s) and snow or water loads as required by local codes. Consult a structural engineer to determine the weight capabilities of the roof.
•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.
•Adequate clearances from the unit to any adjacent public walkways, adjacent buildings, building openings or openable windows must be maintained in accordance with National Codes.
UNIT PRECAUTIONS
•Do not stand or walk on the unit.
•Do not drill holes anywhere in panels or in the base frame of the unit. Unit access panels provide structural support.
•Do not remove any access panels until unit has been installed on roof curb or field supplied structure.
•Do not roll unit across finished roof without prior approval of owner or architect.
•Do not skid or slide on any surface as this may damage unit base. The unit must be stored on a flat, level surface. Protect the condenser coil because it is easily damaged.
ROOF CURB INSTALLATIONS ONLY:
Curb installations must comply with local codes and should be done in accordance with the established guidelines of the National Roofing Contractors Association.
Proper unit installation requires that the roof curb be firmly and permanently attached to the roof structure. Check for adequate fastening method prior to setting the unit on the curb.
Full perimeter roof curbs are available from the factory and are shipped unassembled. Field assembly, squaring, level- ing and mounting on the roof structure are the responsibility of the installing contractor. All required hardware necessary for the assembly of the sheet metal curb is included in the curb accessory.
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