7
GENERAL INFORMATION
The R6GD Single Package Gas Heating / Electric Cooling
Unit is designed only for outdoor rooftop or ground level
installations and can be readily connected to the high
static duct system of a home. This unit has been tested
for capacity and effi ciency in accordance with A.R.I.
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 unit
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 fi ns are straight. If necessary, comb fi ns to remove
fl attened or bent fi ns. Claims for damage (apparent or
concealed) should be fi led immediately with the carrier.
Survey the job site to determine the best location for
mounting the outdoor unit. Choose an appropriate
location that minimizes the length of the supply and
return air ducts.
The indoor unit (air handler, furnace, etc) should be
installed before routing the refrigerant tubing. Refer
to the indoor unit’s instruction manual for installation
details.
Please consult your dealer for maintenance information
and availability of maintenance contracts. Please read
all instructions before installing the unit.
Locating the Equipment
• Select a solid, level position, preferably on a concrete
slab, slightly above the grade level, and parallel to the
home. DO NOT PLACE UNIT UNDER THE HOME.
• Overhead obstructions, poorly ventilated areas, and
areas subject to accumulation of debris should be
avoided. Do not place the unit in a confi ned space or
recessed area where discharge air from the unit to re-
circulate into the condenser air inlet, through the coil.
• Suffi cient clearance for unobstructed airfl ow through the
louvered control access panel and outdoor coil must be
maintained in order to achieve rated performance. See
Figure 2 for minimum clearances to obstructions.
• A clearance of at least 36 inches from the blower access
panel and from the louvered control access panel is
recommended for servicing and maintenance. Where
accessibility to combustibles clearances are greater
than minimum clearances, accessibility clearances
must take preference.
• The hot condenser air must be discharged up and away
from the home, and if possible, in a direction with the
prevailing wind.
• 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.
Combustion Air Requirements
WARNING:
Installation methods other than those described
in the following sections must comply with the
National Fuel Gas Code and all applicable local
codes for providing suffi cient combustion air to
the furnace.
Provisions must be made during the installation of this
unit that provide an adequate supply of air for combustion.
• Instructions for determining the adequacy of an
installation can be found in the current revision of the
NFGC (ANSI Z223.1 / NFPA54). Consult local codes
for special requirements. These requirements are for
US installations as found in the NFGC.
Minimum Required
Clearances to Combustibles
0"
36"
36"
36"
T
OP OF UNIT
T
O BE
UNOBSTR
UCTED
36” For Coil Only
Figure 2. Clearance Requirements
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 J); 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 altitude.
