Reznor R6GD-X36C072C Installation Manual
R6GD SERIES
USER’s MANUAL & INSTALLATION INSTRUCTIONS
Single Package Gas Heating / Electric Cooling - 3 Phase
13 SEER
Premium Model Shown
!
WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly
could result in serious injury or property
damage.
• Installation and service must be performed
by a qualifi ed installer, service agency or the
gas supplier.
• Do not store or use gasoline or other
fl ammable vapors and liquids in the vicinity
of this or any other appliance.
DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
ATTENTION INSTALLERS:
It is your responsibility to know this product better than your customer. This includes being able to install the product according
to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for the life of the product.
Safety should always be the deciding factor when installing this product and using common sense plays an important role as
well. Pay attention to all safety warnings and any other special notes highlighted in the manual. Improper installation of the unit
or failure to follow safety warnings could result in serious injury, death, or property damage. These instructions are primarily
intended to assist qualifi ed individuals experienced in the proper installation of this appliance. Some local codes require
licensed installation/service personnel for this type of equipment. After completing the installation, return these instructions to
the customer’s package for future reference.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbors phone. Follow the gas suppliers
instructions.
• If you cannot reach your gas supplier, call
the fi re department.
WHAT TO DO IF YOU SMELL GAS
use any phone in your building.
USER INFORMATION
Important Safety Information ....................................4
Operating Instructions ...............................................4
Cooling Operation .....................................................4
Heating Operation .....................................................4
Turning the Air Conditioner Off ..................................4
Operating the Indoor Blower Continuously ................4
Air Conditioner Maintenance .....................................4
Troubleshooting ..........................................................4
WARRANTY INFORMATION
A warranty certifi cate with full details is included with the
Air Conditioner. Carefully review these responsibilities with
your dealer or service company . The manufacturer will not
be responsible for any costs found necessary to correct
problems due to improper setup, improper installation,
adjustments, improper operating procedure on the part
of the user, etc. Some specifi c examples of service calls
which are not included in the limited warranty are:
• Correcting wiring problems in the electrical circuit
supplying the Air Conditioner.
• Resetting circuit breakers or other switches.
• Adjusting or calibrating of thermostat.
2
INSTALLER INFORMATION
IMPORTANT SAFETY INFORMATION .......................5
REQUIREMENTS & CODES .......................................6
GENERAL INFORMATION ..........................................7
Before You Install this Unit .........................................7
Locating the Equipment.............................................7
Heating Load ............................................................7
Combustion Air Requirements .................................7
Venting Requirements ..............................................8
Circulating Air Supply .............................................10
Air Ducts .............................................................10
Air Filter Requirements ........................................10
Unconditioned Spaces .........................................10
Acoustical Duct Work ...........................................11
UNIT INSTALLATION ................................................11
Packaging Removal .................................................11
Rigging and Hoisting ...............................................11
Clearances to Combustible Materials ......................11
Ground Level ...........................................................11
Rooftop ....................................................................11
Condensate Drain ..................................................11
Horizontal to Downfl ow Conversion .........................11
Removal of Internal Filter Rack ...............................12
Installing Filters in the Filter Rack ...........................12
Removing Filters from the Filter Rack .....................12
ELECTRICAL WIRING ...............................................13
Pre - Electrical Checklist .........................................13
Line Voltage .............................................................13
Grounding................................................................14
Thermostat / Low Voltage Connections ...................14
Checking Heat Anticipator Settings ......................15
Optional Outdoor Thermostat ...............................15
Blower Speed ..........................................................15
Unbalanced 3-Phase Supply Voltage ......................15
Optional Humidistat .................................................16
GAS SUPPLY & PIPING ............................................16
Leak Check .............................................................17
High Altitude Conversion .........................................17
Lp/Propane Gas Conversion ...................................17
STARTUP & ADJUSTMENTS ...................................18
Pre - Start Checklist ................................................18
Start-up Procedure ..................................................18
Air Circulation .......................................................18
System Cooling ....................................................18
System Heating ....................................................18
Verifying & Adjusting Temperature Rise ..................18
Verifying & Adjusting Firing Rate .............................19
Verifying Operation of Over-Temperature
Limit Control ............................................................19
Verifying Burner Operation ......................................19
Refrigerant Charging ...............................................19
Manifold Pressure Adjustment ................................20
OPERATING SEQUENCE .........................................20
Heating Mode ..........................................................20
Cooling Mode ..........................................................21
Fan Mode ................................................................21
EQUIPMENT MAINTENANCE ...................................21
Cleaning of Heat Exchanger ...................................22
Cleaning of Burners ................................................22
COMPONENT FUNCTIONS ......................................23
TROUBLESHOOTING ...............................................23
REPLACEMENT PARTS ............................................23
FIGURES & TABLES .................................................24
Figure 10. R6GD Dimensions ..............................24
Table 9. Center of Gravity & Shipping Weights .....24
Airfl ow Information ...................................................25
Table 10. Nominal Airfl ow Rates & Temp Rises ...25
Gas Information .......................................................26
Table 11. Gas Pipe Capacities .............................26
Table 12. Gas Flow Rates ....................................26
Figure 11. R6GD Gas Valve Label .......................27
Electrical Information ...............................................28
Figure 12. Wiring Diagram for 208/230 V Units ....28
Figure 13. Wiring Diagram for 460 V Units ...........29
R6GD Charging Charts ...........................................30
Figure 14. Charging Chart for 3 Ton Units ............30
Figure 15. Charging Chart for 4 Ton Units ............30
Figure 16. Charging Chart for 5 Ton Units ............31
FRENCH TRANSLA TIONS ........................................32
INSTALLATION/PERFORMANCE CHECKLIST .......36
3
USER INFORMATION
IMPORTANT SAFETY INFORMATION
Safety markings are used frequently throughout this
manual to designate a degree or lev el of seriousness and
should not be ignored. WARNING indicates a potentially
hazardous situation that if not avoided, could result in
personal injury or death. CAUTION indicates a potentially
hazardous situation that if not avoided, ma y result in minor
or moderate injury or property damage.
OPERATING INSTRUCTIONS
NOTE: Thermostat styles vary. Some models may not
include the AUTO mode and others will have the AUTO
in place of the HEAT and COOL. Others may include all
three. Please refer to the thermostat manufacturer’ s User
manual for detailed programming instructions.
NOTE: If the temperature level is re-adjusted, or the
system mode is reset, the fan and compressor in the
outdoor unit may not start immediately . A protective timer
circuit holds the compressor and the outdoor fan off for
approximately three minutes following a previous operation
or the interruption of the main electrical power.
Cooling Operation
1. Set the thermostat’s system mode to COOL or A UTO
and change the fan mode to AUTO. See Figure 1.
2. Set the temperature selector to the desired temperature
level. The outdoor fan, compressor, and blower
motor will all cycle on and off to maintain the indoor
temperature at the desired cooling level.
Heating Operation
1. Set the thermostat’s system mode to HEAT or AUTO
and change the fan mode to AUTO. See Figure 1.
2. Set the temperature selector to the desired temperature
level. The compressor, outdoor fan, and blo wer motor
will cycle on and off to maintain the indoor temperature
at the desired heating level.
Turning the Unit OFF
Change the thermostat’s system mode to OFF and the fan
mode to AUT O (See Figure 1). NOTE: The system will not
operate, regardless of the temperature selector setting.
Operating the Indoor Blower Continuously
The continuous indoor blower operation is typically used to
circulate the indoor air to equalize a temperature unbalance
due to a sun load, cooking, or fi replace operation.
Set the thermostat fan mode to ON (Figure 1). The indoor
blower starts immediately, and will run continually until
the fan mode is reset to AUTO.
The continuous indoor blower operation can be obtained
with the thermostat system mode set in any position,
including OFF.
UNIT MAINTENANCE
Proper maintenance is most important to achieve the best
performance from the appliance and should be performed
frequently at the beginning of each air conditioning season.
W ARNING:
Your equipment contains liquid and gaseous
refrigerant under pressure. Installation and
servicing should only be attempted by qualifi ed,
trained personnel thoroughly familiar with the
equipment and safe responsible refrigerant
handling procedures. Failure to comply with
this warning could result in equipment damage,
personal injury, or death.
• Keep the outdoor unit clean. Hose off periodically and
keep unit fi ns clear of leaves and grass clippings.
• Keep the outdoor unit clear of obstructions.
DO NOT obstruct airfl ow with tall plants or shrubs. DO
NOT store gasoline or other fl ammable materials on or
near the outdoor unit.
• Never operate the appliance without a fi lter installed in
the return air duct. Inspect fi lters frequently and replace
when necessary with fi lter of same dimensional size.
TROUBLESHOOTING
If the unit fails to operate, check the following:
• Check the thermostat setting. Make sure the system
mode and temperature settings are correct.
Fan
Mode
Figure 1. Digital Thermostat
4
System
Mode
Temperature
Selector
• Check the electrical panel for tripped circuit breakers.
• Check the fi lters for dust accumulation.
• Check the outdoor unit and make sure it is clean and
not covered with grass or leaves.
• If the items above don’t resolve your problems, then
call your nearest service technician.
INSTALLER INFORMATION
IMPORTANT SAFETY INFORMATION
Please read all instructions before servicing this equipment.
Pay attention to all safety warnings and any other special
notes highlighted in the manual. Safety markings are
used frequently throughout this manual to designate a
degree or level of seriousness and should not be ignored.
WARNING indicates a potentially hazardous situation that
if not avoided, could result in personal injury or death.
CAUTION indicates a potentially hazardous situation that
if not avoided, may result in minor or moderate injury or
property damage.
W ARNING:
Improper installation, service, adjustment, or
maintenance may cause explosion, fi re, electrical
shock or other hazardous conditions which ma y
result in personal injury or property damage.
Unless otherwise noted in these instructions,
only factory authorized kits or accessories may
be used with this product.
CAUTION:
This unit uses refrigerant R-410A. DO NOT use
any other refrigerant in this unit. Use of another
refrigerant will damage the unit.
W ARNING:
Shut off all electrical power to the unit before
performing any maintenance or service on the
system. Failure to compl y may result in personal
injury or death.
W ARNING:
These units are fully charged with R-410A
refrigerant and ready for installation. When
a system is installed according to these
instructions, no refrigerant charging is required.
If repairs make it necessary for evacuation
and charging, it should only be attempted by
qualifi ed, trained personnel thoroughly familiar
with this equipment. Some local codes require
licensed installation service personnel to
service this type of equipment. Under no
circumstances should the homeowner attempt
to install and/or service this equipment. Failure
to comply with this warning could result in
equipment damage, personal injury, or death.
W ARNING:
Do not place combustible material on or against
the unit cabinet. Do not place combustible
materials, including gasoline and any other
fl ammable vapors and liquids, in the vicinity of
the unit.
WARNING:
PROPOSITION 65 WARNING: This product
contains fi berglass wool, a product kno wn to the
state of California to cause cancer. Disturbing
the insulation of this product during installation,
maintenance, or repair will expose you to
fi berglass wool.
• Breathing this material may cause respiratory
irritations or may cause lung cancer.
• Fiberglass wool may also cause eye
irritation, skin sensitization, or other allergic
responses in susceptible individuals.
• Always wear goggles, disposable gloves,
long sleeved shirt, and appropriate breathing
protection when working near this insulation.
If contact with skin occurs, wash immediately
with soap and water. In case of contact with
eyes, fl ush immediately with water for at
least 15 minutes. Contact a physician if needed.
W ARNING:
The information listed below and on the next
page must be followed during the installation,
service, and operation of this unit. Unqualifi ed
individuals should not attempt to interpret these
instructions or install this equipment. Failure
to follow safety recommendations could result
in possible damage to the equipment, serious
per
sonal injury or death
• The installation must conform with the National Fuel Gas
Code (ANSI 2223.1, NFPA-54). Canadian installations
must conform with CAN/CGA-B149 installation codes.
• The installer must comply with all local codes and
regulations which govern the installation of this type
of equipment. Local codes and regulations take
precedence over any recommendations contained in
these instructions. Consult local b uilding codes and the
National Electrical Code (ANSI CI) for special installation
requirements.
.
5
• This equipment contains liquid and gaseous refrigerant
under high pressure. Installation or servicing should only
be performed by qualifi ed trained personnel thoroughly
familiar with this type equipment.
• All electrical wir ing must be completed in accordance
with local, state and national codes and regulations and
with the National Electric Code (ANSI/NFPA 70) or in
Canada the Canadian Electric Code Part 1 CSA C.22.1.
• Air Ducts must be installed in accordance with the
standards of the National Fire Protection Association
“Standards for Installation of Air Conditioning and
Ventilation Systems” (NFPA 90A), “Standard for
Installation of Residence T ype Warm Air Heating and Air
Conditioning Systems” (NFPA 90B), these instructions,
and all applicable local codes.
• Install this unit only in a location and position as specifi ed
on page 7. This unit is designed only for outdoor
installations and should be located with consideration
of minimizing the length of the supply and return ducts.
Consideration should also be given to the accessibility
of fuel, electric power, service access, noise, and shade .
• Before beginning the installation, verify that the unit
model is correct for the job. The unit model number
is printed on the data label. Follow all precautions in
the literature, on tags, and on labels provided with
the equipment. Read and thoroughly understand
the instructions provided with the equipment prior to
performing the installation and operational checkout of
the equipment.
• Use only with the type of gas approved for this unit.
Refer to the unit rating plate.
• Provide adequate combustion and ventilation air to the
unit. See pages 7 - 9.
• Provide adequate clearances around the air v ent intake
terminal. See page 8.
• Combustion products must be discharged outdoors.
Connect this unit to an approved vent system only, as
specifi ed on page 8.
• Never test for gas leaks with an open fl ame. Use a
commercially available soap solution to check all
connections (See page 17).
• Consult Table 10 (page 25), and the r ating plate for the
proper circulating air fl ow and temperature rise. It is
important that the duct system be designed to provide
the correct fl ow rates and external pressure rise. An
improperly designed duct system can result in nuisance
shutdowns, and comfort or noise issues.
• Installation of equipment may require brazing operations.
Installer must comply with safety codes and wear
appropriate safety equipment (safety glasses, work
gloves, fi re extinguisher , etc.) when perf orming brazing
operations.
• This equipment is NOT to be used for temporary heating
of buildings or structures under construction.
REQUIREMENTS AND CODES
This unit must be installed in accordance with
instructions outlined in this manual, all applicable
local building codes, and the current revision of the
National Fuel Gas Code (NFPA54/ANSI Z223.1) or
the Natural Gas and Propane Installation Code, CAN/
CGA B149.1.
Additional codes listed below are for ref erence purposes
only and do not necessarily have jurisdiction over local or
state codes. Local codes and regulations take precedence
over any recommendations contained in these instructions.
Always consult with local authorities before installing an y
gas appliance.
Combustion and Ventilation Air
• US: National Fuel Gas Code (NFGC), Air for Combustion
and V entilation
• CANAD A: Natural Gas and Propane Installation Codes
(NSCNGPIC), Venting Systems and Air Supply for
Appliances
Duct Systems
• US and CANADA: Air Conditioning Contractors
Association (ACCA) Manual Q, Sheet Metal and
Air Conditioning Contractors National Association
(SMACNA), or American Society of Heating,
Refrigeration, and Air Conditioning Engineers
(ASHRAE) Fundamentals Handbook
Electrical Connections
• US: National Electrical Code (NEC) ANSI/NFPA 70
• CANADA: Canadian Electrical Code CSA C22.1
Gas Piping and Gas Pipe Pressure Testing
• US: NFGC and National Plumbing Codes
• CANADA: NSCNGPIC
General Installation
• US: Current edition of the NFGC and the NFP A 90B . For
copies, contact the National Fire Protection Association
Inc., Batterymarch Park, Quincy , MA 02269; or American
Gas Association, 400 N. Capitol, N.W ., Washington DC
20001 or www.NFPA.org.
• CANADA: NSCNGPIC. For a copy, contact Standard
Sales, CSA International, 178 Rexdale Boulevard,
Etobicoke (Toronto), Ontario, M9W 1R3 Canada
Safety
• US: (NFGC) NFPA 54–1999/ANSI Z223.1 and the
Installation Standards, Warm Air Heating and Air
Conditioning Systems ANSI/NFPA 90B.
• CANADA: CAN/CGA-B149.1–and .2–M00 National
Standard of Canada. (NSCNGPIC)
6
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.
T o 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 inf ormation
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 recirculate 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 perf ormance. 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 awa y
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.
36” For Coil Only
36"
36"
0"
36"
TO BE
TOP OF UNIT
UNOBSTRUCTED
Minimum Required
Clearances to Combustibles
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.
Combustion Air Requirements
W ARNING:
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 f or
US installations as found in the NFGC.
7
• The requirements in Canada (B149.1) are structured
differently. Consult with B149.1 and local code offi cials
for Canadian installations.
Air openings in the door of the unit, warm air registers, and
return air grilles must never be restricted. If the unit does
not receive an adequate supply of air for comb ustion, the
fl ame roll-out control located above the burners will open,
turning off the gas supply to the burners. This safety device
is a manually reset switch. IMPOR T ANT NO TE: DO NO T
install jumper wires across this control to defeat its
function or reset the control without identifying and
correcting the fault condition.
If this control must be replaced, use only factory authorized
replacement parts. See the Replacement Parts List on
page 23.
W ARNING:
Combustible air must not be drawn from a
contaminated atmosphere. Excessive exposure
to contaminated combustion air will result in
safety and performance related problems.
To maximize heat exchanger life, the combustion air
must be free of chemicals that can form corrosive acidic
compounds in the combustion gases. The recommended
source of combustion air is to use clean air from outside.
DO NOT place any chemicals with fl ammable or caustic
vapors or these other corrosive chemicals near the
vent termination:
• Gasoline/Kerosene
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine based swimming pool chemicals
• Water softening chemicals
• De-icing salts or chemicals
• Carbon tetrachloride
• Halogen type refrigerants
• Cleaning solvents
• Cements, glues, paint removers, varnishes, etc.
• Hydrochloric acid
• Masonry acid washing materials
• Plumbing Stack
A vent cover assembly has been supplied with the unit.
and can be found secured to the gas controls within the
control area of this unit. The vent co ver assembly must
be installed to assure proper operation of the unit.
The following list summarizes the requirements for the
location of the vent system termination:
• The location of the v ent termination must be consistent
with the National Fuel Gas Code (ANSI Z223.1) or CAN/
CGA-B149 Installation Codes.
• The vent termination must be located at least 4 feet
horizontally from any electric meters, gas meters,
regulators, and relief equipment.
• The vent termination must be located at least 3 feet
above any forced air inlet located within 10 feet.
• The vent termination must be located at least 4 feet
below , 4 feet horizontally from, or 1 foot abov e any door,
window, or gravity air inlet into any building.
• The vent termination must be located at least 1 foot
above grade.
• The unit should be installed in a way that prev ents any
obstruction of the vent termination during accumulating
snow.
• The unit installation shall avoid areas where condensate
drainage may cause problems b y dropping on planters
or patios, etc. Also verify exhaust gases will not
impinge on windows or building surfaces, which may
be compromised or damaged by condensation.
• Do not install the unit such that exhaust from the vent
termination is directed into window wells, stairwells,
under decks, or in alcov es or similarly recessed areas.
The vent termination must not be located above any
public walkways.
Figure 3 shows the proper installation of the vent cover
assembly over the vent outlet on the exterior of the
corner panel. The fasteners used to secure the vent cov er
assembly have been included in the owner’s package.
Venting Requirements
This unit has been equipped with an integral venting
system and designed to operate only with this venting
system. No additional venting shall be used. This unit
must be vented to the outdoors.
WARNING:
This unit is intended for outdoor installation
only . Do not vent the unit thr ough a conventional
venting system.
8
Figure 3. Vent Assembly
WARNING:
AVERTISSEMENT:
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below
for each appliance connected to the venting
system being placed into operation could result
in carbon monoxide poisoning or death. The
following steps shall be followed with each
individual appliance connected to the venting
system being placed in operation, while all
other appliances connected to the venting
system are not in operation:
1. Seal any unused openings in the venting
system.
2. Inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 or the CSA
B149.1, Natural Gas and Propane Installation
Codes and these instructions. Determine that
there is no blockage or restriction, leakage,
corrosion and other defi ciencies which could
cause an unsafe condition.
3. As far as practical, close all building doors
and windows and all doors between the space
in which the appliance(s) connected to the
venting system are located and other spaces
of the building.
4. Close fi replace dampers.
5. Turn on clothes dryers and any appliance not
connected to the venting system. Turn on
any exhaust fans, such as range hoods and
bathroom exhausts, so they are operating at
maximum speed. Do not operate a summer
exhaust fan.
6. Follow the lighting instructions. Place the
appliance being inspected into operation.
Adjust the thermostat so appliance is operating
continuously.
7. Test for spillage from draft hood equipped
appliances at the draft hood relief opening
after 5 minutes of main burner operation. Use
the fl ame of a match or candle.
8. If improper venting is observed during any of
the above tests, the venting system must be
corrected in accordance with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 and/or CSA
B149.1, Natural Gas and Propane Installation
Codes.
9. After it has been determined that each appliance
connected to the venting system properly vents
when tested as outlined above, return doors,
windows, exhaust fans, fi replace dampers and
any other gas-fi red burning appliance to their
previous conditions of use.
RISQUE D’EMPOISONNEMENT AU
MONOXYDE DE CARBONED
Le non-respect des consignes suivantes portant
sur chacun des appareils raccordés au système
d’évacuation mis en service pourrait entraîner
l’empoisennement au monoxyde de carbone ou
la mort. Les consignes suivantes doivent être
observées pour chaque appareil raccordé au
système d’évacuation mis en service si les autres
appareils raccordés au système ne sont pas en
service:
1.
Sceller toute ouverture non utilisée de la systéme
d’évacuation;
2.
S’assurer que la systéme d’évacuation présente
des dimensions et une pente horizontale
conformes à la norme ANSI Z223.1/NFPA
54, intitulée National Fuel Gas Code ou aux
codes d’installation CSA-B149.1, ainsi qu’aux
présentes instructions. S’assurer que la systéme
d’évacuation n’est pas bloquée, restreinte,
corrodée, qu’elle ne fuit pas et qu’elle ne présente
aucun autre défaut potentiellement dangereux;
3.
Dans la mesure du possible, fermer toutes les
portes et fenêtres du bâtiment, et toutes les
portes entre la pièce où se trouve l’appareil
raccordé à la systéme d’évacuation et les autres
pièces du bâtiment.
4.
Fermer les registres des foyers;
5.
Mettre en service les sécheuses et tout autre
appareil qui n’est pas raccordé à la systéme
d’évacuation. Faire fonctionner à régime
maximal tout ventilateur d’évacuation, tel que
les hottes de cuisinière et les ventilateurs de
salles de bains. Ne pas mettre en service les
ventilateurs d’été.
6.
Respecter les instructions d’allumage. Mettre en
service l’appareil à l’essai. Régler le thermostat
de manière à ce que l’appareil fonctionne sans
interruption;
7.
Vérifier s’il y a débordement à l’orifice
d’évacuation du coupe tirage des appareils dotés
d’un coupe tirage 5 minutes après l’allumage
du brûleur principal. Utiliser la fl amme d’une
allumette ou d’une chandelle.
8.
Si l’on constate, au cours de l’un des essais
qui précèdent, que l’évacuation est défi ciente,
corriger le système d’évacuation conformément
à la norm ANSI Z223.1/NFPA 54, National Fuel
Gas Code, et (ou) aux codes d’installation CSA
B149.1.
9.
Après avoir déterminé que tous les appareils
raccordés à la systéme d’évacuation évacuent
correctement tel que prescrit ci-dessus,
rouvrir les portes et les fenêtres et remettre les
ventilateurs d’évacuation, les registres de foyers
et tout autre appareil fonctionnant au gaz à leur
état de fonctionnement initial.
9
Circulating Air Supply
W ARNING:
Products of combustion must not be allo wed to
enter the return air ductwork or the circulating air
supply . Failure to prevent products of combustion
from being circulated into the living space can
create potentially hazardous conditions including
carbon monoxide poisoning that could result in
personal injury or death.
All return ductwork must be adequately sealed,
all joints must be taped, and the ductwork must
be secured to the unit with sheet metal screws.
When return air is provided through the bottom
of the unit, the joint between the unit and the
return air plenum must be air tight.
The roof curb or cement pad on which the unit is
mounted must provide sound physical support of
the unit with no gaps, cracks, or sagging between
the unit and the curb or pad.
Return air and circulating air ductwork must not
be connected to any other heat producing device
such as a fi replace insert, stove, etc. Doing so
may result in fi re, explosion, carbon monoxide
poisoning, personal injury, or pr operty damage.
Air Ducts
This unit is designed only for use with a supply and return
duct. Air ducts should be installed in accordance with the
standards of the National Fire Protection Association
“Standard for Installation of Air Conditioning Systems”
(NFP A 90A), “Standard for Installation of Residence Type
Warm Air Heating and Air Conditioning Systems” (NFPA
90B), and all applicable local codes. NFPA publications are
available b y writing to: National Fire Protection Association,
Batterymarch Park, Quincy , ME 02269 or visit www.NFP A.
org on the web.
• Design the duct work according to Manual D by the Air
Conditioning Contractors of America (ACCA).
• The ducts must be properly sized and not exceed 0.2”
W.C. pressure drop at 400 scfm per nominal ton of
cooling capacity.
• Duct work should be attached directly to the unit fl anges
for horizontal applications.
• If roof curb is installed, the ducts must be attached to
the curb hangers, not the unit.
• It is recommended that the outlet duct be provided
with a removable access panel. The opening should
be accessible when the unit is installed in service and
shall be sizes so that smoke or refl ected light may be
observed inside the casing to indicate the presence of
leaks in the heat exchanger . The co v er f or the opening
shall be attached in a way that will prevent leaks.
• If outside air is utilized as return air to the unit for
ventilation or to improve indoor air quality, the system
must be designed so that the return air to the unit is
not less than 50° F (10° C) during heating operation.
• If a combination of indoor and outdoor air is used, the
ducts and damper system must be designed so that the
return air supply to the furnace is equal to the return air
supply under normal, indoor return air applications.
Air Filter Requirements
W ARNING:
Never operate the unit without a fi lter in place.
Dust and lint could accumulate on internal parts,
resulting in loss of effi ciency , equipment damage
and possible fi re.
• A suitable air fi lter must be installed upstream of the
evaporator coil of the return air system. Refer to Table
1 for recommended fi lter sizes.
• All return air must pass through the fi lters before entering
the evaporator coil.
clean and replaced frequently to ensure proper operation
of unit. Dirty or clogged fi lters will reduce the effi ciency
of the unit and result in unit shutdowns.
• Air fi lter pressure drop must not exceed 0.08 inches WC .
• Downfl ow Installations require an internal fi lter accessory
kit to be installed.
• Hor izontal Installations require the air fi lter system be
installed in the return air ductwork.
NOTE TO INSTALLER: After installing or replacing the
fi ltration system for this unit, add the f ollowing statement
on or adjacent to the fi lter service panel: “Replace
fi lter(s) installed in your system only with the same
dimensional size fi lters that are being replaced.”
Nominal
Cooling
(Tons)
3.0 1,100 - 1,300 625 25 x 25
4.0 1,400 - 1,800 850 18 x 24 (2 required)
5.0 1,800 - 2,200 1,000 20 x 25 (2 required)
* Based on velocity of 300 ft/min for disposable fi lters and
500 ft/min for high velocity (cleanable) Filters.
Unconditioned Spaces
All duct work passing through unconditioned space must
be properly insulated to minimize duct losses and prevent
condensation. Use insulation with an outer v apor barrier .
Refer to local codes for insulation material requirements.
Approximate
Air Flow
Range (CFM)
Table 1. Air Filter Requirements
It is important that all fi lters be kept
Approximate
Filter Area
(Sq. In.)*
Recommended
Filter Size
(In. x In.)
10
Acoustical Duct Work
Certain installations may require the use of acoustical
lining inside the supply duct work.
• Acoustical insulation must be in accordance with the
current revision of the Sheet Metal and Air Conditioning
Contractors National Association (SMACNA) application
standard for duct liners.
• Duct lining must be UL classifi ed batts or blankets with
a fi re hazard classifi cation of FHC-25/50 or less.
• Fiber duct work may be used in place of internal duct
liners if the fi ber duct work is in accordance with the
current revision of the SMACNA construction standard
on fi brous glass ducts. Fibrous duct work and internal
acoustical lining must be NFPA Class 1 air ducts when
tested per UL Standard 181 for Class 1 ducts.
UNIT INSTALLATION
Packaging Removal
Remove the shipping carton and User’s Manual from the
equipment. Take care not to damage the tubing connections
when removing the carton. For rooftop installations, remove
and discard the two supports attached beneath the unit.
Rigging and Hoisting
W ARNING:
To avoid the risk of property damage, personal
injury, or death, it is the rigger’s responsibility
to ensure that whatever means are used to hoist
the unit are safe and adequate:
• The lifting equipment must be adequate for the
load. Refer to T able 9 (page 24) for unit weights.
• The unit must be lifted from the holes in the
base rails using cables or chains.
• Spreader bars are required to protect the unit
and ensure even loading.
• Keep the unit in an upright position at all times.
The rigging must be located outside the units
center of gravity. Refer to Figure 10 (page 24)
for locating the center of gravity.
• All panels must be securely in place during
rigging and hoisting.
Clearances to Combustible Materials
R6GD units are certifi ed as combination heating and
cooling equipment for outdoor rooftop or ground level
installations. Units may be installed on combustible
fl ooring or Class A, B, or C roofi ng material when used
with bottom supply and return air ducts as long as the
following requirements are met:
• If using horizontal supply and return air ducts, the
horizontal roof curb kit and return air kit must be installed
prior to unit installation. Horizontal roof curb is required.
• If using bottom discharge with return air ducts a roof curb
must be installed prior to unit installation. See Rigging
and Hoisting section for setting of the unit.
• Suffi cient clearance for unobstructed airfl ow through
the outdoor coil must also be maintained in order to
achieve rated perf ormance. See page 7 for inf ormation
about locating the equipment.
Ground Level
Ground level installations must be located according to
local building codes or ordinances and these requirements:
• Clearances must be in accordance with those shown
in Figure 2 (page 7).
• A suitable mounting pad (Figure 4, page 12) must be
provided and be separate from the building f oundation.
The pad must be level to ensure proper condensate
disposal and strong enough to support the unit’s weight.
The slab height must be a minimum of 2” (5cm) abo v e
grade and with adequate drainage.
• Units require hor izontal roof curb and return air kit for
horizontal installations.
• Ductwork should be attached directly to fl anges on
panels supplied in horizontal duct conversion kits.
Rooftop
Rooftop installations must be located according to local
building codes or ordinances and these requirements:
• The roof must be capable of handling the weight of the
unit. F or unit w eights, see Tab le 9. Reinforce the roof if
necessary.
• The appropriate accessory roof curb (Figure 5, page 12)
must be installed prior to unit installation. The roof curb
must be square and level to ensure proper condensate
drainage. Please follo w all instructions provided with
the kit.
• Secure roof curb or frame to roof using acceptable
mechanical methods per local codes. NOTE:
the two supports beneath the unit have been removed.
Condensate Drain
Condensate is removed from the unit through the 3/4”
female pipe fi tting (Figure 6, page 12) located on the front
side of the unit. Install a 2 inch condensate trap in the
drain line of the same size and prime with water. When
connecting rigid drain line, hold the female fi tting with a
wrench to prevent twisting. Do not over tighten! Refer
to local codes and restrictions for proper condensate
disposal requirements.
Horizontal to Downfl ow Conversion
The unit is shipped ready for horizontal duct connections.
If down fl ow ducts are required, the unit must be converted
following the steps below for both the supply and return
ducts.
1. Remove the horizontal duct cap.
2. Locate the duct cap inside the duct openings and
remove the screw holding it in place.
3. Lift the cap out of the unit. (Hint: The cap can be pushed
up from the bottom by reaching through the fork slot).
4. Cover the horizontal duct opening with the horizontal
duct cap. The insulation will be on the indoor side.
5. Fasten the cover with screws to seal.
Make sure
11
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