Unit Location

System design and installation should also, where applicable, follow information presented in accepted industry guides such as the ASHRAE Handbooks. The manufacturer assumes no responsibility for equipment installed in violation of any code or regulation. The mechanical installation of the packaged roof top units consists of making final connections between the unit and building services; supply and return duct con- nections; and drain connections (if required). The internal systems of the unit are completely factory-installed and tested prior to shipment.

Units are generally installed on a steel roof mounting curb assembly which has been shipped to the job site for installa- tion on the roof structure prior to the arrival of the unit. The model number shown on the unit’s identification plate identi- fies the various components of the unit such as refrigeration tonnage, heating input and voltage.

Carefully inspect the unit for damage including damage to the cabinetry. Any bolts or screws which may have loosened in transit must be re-tightened. In the event of damage, the receiver should:

1.Make notation on delivery receipt of any visible damage to shipment or container.

2.Notify carrier promptly and request an inspection.

3.In case of concealed damage, carrier should be notified as soon as possible-preferably within 5 days.

4.File the claim with the following supporting documents:

a.Original Bill of Lading, certified copy, or indemnity bond.

b.Original paid freight bill or indemnity in lieu thereof.

c.Original invoice or certified copy thereof, showing trade and other discounts or reductions.

d.Copy of the inspection report issued by carrier representative at the time damage is reported to the carrier. The carrier is responsible for making prompt inspection of damage and for a thorough investigation of each claim. The distributor or manufacturer will not accept claims from dealers for transportation damage.

NOTE: When inspecting the unit for transportation damage, remove all packaging materials. Recycle or dispose of the packaging material according to local codes.

PRE-INSTALLATION CHECKS

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.

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. See important note under Roof Curb Installation Only.

ALL INSTALLATIONS:

IMPORTANT NOTE: Unit should be energized 24 hours prior to compressor start up to ensure crankcase heater has sufficiently warmed the compressors. Compressor dam- age may occur if this step is not followed.

NOTE: Appliance is shipped from factory for vertical duct application.

Proper installation of the unit ensures trouble-free operation. Improper installation can result in problems ranging from noisy operation to property or equipment damages, danger- ous conditions that could result in injury or personal property damage and could void the warranty. Give this booklet to the user and explain it’s provisions. The user should retain these instructions for future reference.

•For proper flame pattern within the heat exchanger and proper condensate drainage, the unit must be mounted level.

•The flue outlet must be at least 12 inches from any opening through which flue gases could enter a building, and at least three feet above any forced air inlet located within ten feet. The economizer/manual fresh air intake/motorized fresh air intake and combustion air inlet mounted on the unit are not affected by this restriction.

•To avoid possible corrosion of the heat exchanger, do not locate the unit in an area where the outdoor air (i.e. combustion air for the unit) 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.