Reznor R6GP Unit Installation Manual - Manual (Page 5)

5
GENERAL INFORMATION
About the Rooftop Unit
Single Package Gas Heating / Electric Cooling Rooftop
Units are designed only for outdoor rooftop or ground level
installations and can be readily connected to the duct
system of a building. This unit has been tested for capacity
and efficiency in accordance with AHRI Standards and
will provide many years of safe and dependable comfort,
providing it is properly installed and maintained. With
regular maintenance, this unit will operate satisfactorily
year after year. Abuse, improper use, and/or improper
maintenance can shorten the life of the appliance and
create unsafe hazards.
To achieve optimum performance and minimize equipment
failure, it is recommended that periodic maintenance be
performed on this unit. The ability to properly perform
maintenance on this equipment requires certain tools
and mechanical skills.
Before You Install this Equipment
√
The cooling load of the area to be conditioned must be
calculated and a system of the proper capacity selected.
It is recommended that the area to be conditioned be
completely insulated and vapor sealed.
√
Check the electrical supply and verify the power supply
is adequate for unit operation. Consideration should be
given to availability of electric power, service access,
noise, and shade. If there is any question concerning
the power supply, contact the local power company.
√
All units are securely packed at the time of shipment and
upon arrival should be carefully inspected for damage
prior to installing the equipment at the job site. Verify
coil fins are straight. If necessary, comb fins to remove
flattened or bent fins. Claims for damage (apparent or
concealed) should be filed immediately with the carrier.
√
Please consult your dealer for maintenance information
and availability of maintenance contracts. Read all
instructions before installing the unit.
Locating the Unit
• Survey the job site to determine the best location for
the packaged unit. The unit should be located with
consideration of minimizing the length of the supply
and return ducts. If practical, place the equipment and
its ducts in an area where they will be shaded from
the afternoon sun, when the heat load is greatest.
Consideration should also be given to the accessibility
of fuel, electric power, service access, noise, and shade.
• Select a solid, level position, preferably on a concrete
slab, slightly above the grade level, and parallel to the
building.
• Overhead obstructions, poorly ventilated areas, and
areas subject to accumulation of debris should be
avoided. Do not place the unit in a confined space or
recessed area where discharge air from the unit could
re-circulate back through the condenser coil.
• Sufficient clearance for unobstructed airflow through the
louvered control access panel and outdoor coil must be
maintained in order to achieve rated performance. See
pages 8 - 9 for minimum clearance requirements.
• Where accessibility to combustibles clearances
are greater than minimum clearances, accessibility
clearances must take preference.
• If practical, place the air conditioner and its ducts in an
area where they will be shaded from the afternoon sun,
when the heat load is greatest.
Heating Load
This unit should be sized to provide the design heating
load requirement. Heating load estimates can be made
using approved methods available from Air Conditioning
Contractors of America (Manual N); American Society of
Heating, Refrigerating, and Air Conditioning Engineers;
or other approved engineering methods. For installations
above 2,000 ft., the unit should have a sea level input
rating large enough that it will meet the heating load after
deration for the installed elevation.