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Residential Gas Furnaces
Installation Instructions
80+ High Efficiency Upflow/Horizontal and Downflow
with Variable Speed Blower
!
WARNING:
Improper
installation,
adjustment, alteration,
service, or maintenance can
cause injury or property
damage.
Refer to this
manual. For assistance or
additional
information
consult a qualified installer,
service agency, or the gas
supplier.
DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this
appliance. Some local codes require licensed installation/service personnel for this type of equipment. Read all
instructions carefully before starting the installation.
*RA 80+ Upflow
FOR YOUR SAFETY
Do not store or use gasoline
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
*RK 80+ Downflow
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any
appliance.
• Do not touch any electrical
switch; do not use any
phone in your building.
• Immediately call your gas
supplier from a neighbor's
phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas
supplier, call the fire
department.
• Extinguish any open flame.
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Summary of Contents for Nordyne 072C-16
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Page 1: Installation Instructions
Residential Gas Furnaces Installation Instructions 80+ High Efficiency Upflow/Horizontal and Downflow with Variable Speed Blower *RA 80+ Upflow *RK 80+ Downflow FOR YOUR SAFETY FOR YOUR SAFETY WARNING: WHAT TO DO IF YOU SMELL GAS • Do not try to light any Improper installation, appliance. -
Page 3: Table Of Contents
Table of Contents Furnace Specifications ............................... 4-5 Unit Dimensions and Shipping Weights ....................... 4-5 Capacities-Furnace Airflow Data ........................6 Safety Information ............................7 Installation Requirements ..............................7 Requirements and Codes ..........................7 Location ................................7 Clearances to Combustibles ........................... 7 Venting and Combustion Air Requirements ........................ -
Page 4: Furnace Specifications
SHIPPING WEIGHTS Furnace Dimensions Shipping Model Input Flue Outlet Weight (Btuh) (in.) (in.) (in.) (in.) (lbs) (IN.) 072C-16 72,000 19 3/4 18 1/4 3 3/4 17 1/4 096C-12 96,000 19 3/4 18 1/4 3 3/4 17 1/4 096C-16 96,000 19 3/4... - Page 5 (lbs) 060C-12 60,000 14 1/4 12 3/4 5 1/2 072C-12 72,000 14 1/4 12 3/4 5 1/2 072C-16 72,000 19 3/4 18 1/4 096C-12 96,000 19 3/4 18 1/4 096C-16 96,000 19 3/4 18 1/4 120C-20 120,000...
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Page 6: Capacities-Furnace Airflow Data
CAPACITIES —Furnace Airflow Data SWITCH NUMBER Nominal A/C and HP LOW HIGH Capacity 1050 1155 1305 1000 1450 1060 1530 1100 1595 1170 1700 1290 1870 NOTE: 0 = OFF 1 = ON Table 1. Cooling/Heat Pump Airflow Settings Nominal Air-Flow 1056 1200 1350... -
Page 7: Safety Information
SAFETY INFORMATION WARNING: 1. Use only with type of gas approved for this furnace. This furnace is not approved for installation in Refer to the furnace rating plate. mobile homes. Installation in a mobile home 2. Install this furnace only in a location and position as could cause fire, property damage, and/or specified on Table 3 of these instructions. -
Page 8: Venting And Combustion Air Requirements
3. The following types of installation may require Outdoor WARNING: Air for combustion, due to chemical exposures: • Commercial buildings Do not place combustible material on or against • Buildings with indoor pools the furnace cabinet or within 6 inches of the vent •... - Page 9 appliances drawing combustion air from that space. Furnace Supply Air Plenum Installation closets, small equipment rooms and garages are confined spaces. Furnaces installed in a confined space which A. Installation on a concrete slab. - *RK supply heated air to areas outside the space must draw 1.
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Page 10: Horizontal Furnace Installation
Upflow Furnace Models UPFLOW APPLICATION HORIZONTAL APPLICATION LEFT RIGHT LEFT RIGHT SIDE SIDE SIDE SIDE BOTTOM HORIZONTAL INSTALLATION CLEARANCES Vent Connector Standard Single Type B-1 Double Type Wall Metal Vent Wall Metal Vent LEFT SIDE 1" 1" RIGHT SIDE 0" 0"... -
Page 11: Air From Inside
Access for positioning and servicing must be considered WARNING: when locating the unit. Refer to Table 3, Minimum Clearances to Combustible Material, for clearance Furnaces installed with combustion air drawn specifications. from a heated space which includes exhaust fans, fireplaces, or other devices that may Keep all insulating materials away from the louvered door. -
Page 12: Outdoor Air Using Vertical Ducts
Outdoor Air Using Vertical Ducts The combustion air openings must not be restricted in any (See Figure 8) manner. If combustion air is taken from outdoors through vertical ducts, the openings and ducts must have a minimum free CAUTION: area of one square inch per 4,000 Btuh of total appliance input. -
Page 13: Venting Requirements
Vent or Chimney Ventilation Louvers at Vent or each end of attic Chimney Outlet Air Duct must be at least 1 sq. in. per 4000 Btuh of total input rating. Must extend above attic insulation. Attic Insulation 12" Max - - - - - - - - - - - -... - Page 14 WARNING: 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 for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation: 1.
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Page 15: Category Iii - Horizontal Venting
Pressure Switch Switch Switch Switch Limit Flame Vent Roll-Out Limit Wire Nut Sensor Blue Tubes Bleed Tube Bleed Tube Figure 14. Limit Circuit Wiring Orifice cover the hole(s) on the vent collar assembly. Collector Tighten the nut securely while holding the cover plate in position. - Page 16 2. Remove the rubber tubing from the pressure switch NOTE: The direction of the male-female joints from the sensor tube and the collector pan sensor tube. Cut the drain tee to the termination tee is opposite to standard gas tubing approximately 3" from one end. Select the appliance venting.
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Page 17: Horizontal Power Venting
(See Figure 20.) A 072C-12 3" 4" to 3" 6-1/2 inch square framed opening is required to insert 072C-16 3" 4" to 3" the thimble halves. The thimble is adjustable to 096C-12 3"... - Page 18 VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED Canadian Installations US Installations A = Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) deck, or balcony 6 inches (15 cm) for appliances ≤ 10,000 B = Clearance to window or door that may be 4 feet (1.2 m) below or to side of opening;...
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Page 19: Flexible Vent Systems
The vent pipe must extend 1-1/4 inches through the Outer Overlapping Inside Shield 6 " Dia. Combustible outer thimble half for a combustible wall. Be sure to Wall Wall Thimble check this carefully before cutting the vent pipe. (Inner Half) 10. -
Page 20: Gas Supply And Piping
GAS SUPPLY AND PIPING WARNING: General Products of combustion must not be allowed This furnace may be installed for either left or right side gas to enter the return air ductwork or the circulating entry. A typical gas service hookup is shown in Figure 22. air supply. -
Page 21: Leak Check
LEAK CHECK High Altitude Application High altitude application with this furnace can be field performed by a simple adjustment of manifold pressure, WARNING: and if necessary changing the orifices. The changes Fire or Explosion Hazard required depend on the installation altitude and the heating value of the gas. -
Page 22: Natural Gas High Altitude Conversion
For a Natural Gas Sea Level Heating Value of 800 to 899 Btu/cu.ft. Elevation (feet above sea level) zero to 2000 to 5000 to 6000 to 8000 to 1999 4999 5999 7999 10000 Manifold Pressure Setting (in WC) For a Natural Gas Sea Level Heating Value of 900 to 999 Btu/cu.ft. Elevation (feet above sea level) zero to 2000 to... -
Page 23: Line Voltage Wiring
Orifice Drill Size Orifice Drill Size Furnace Rating Furnace Rating Plate Input (Btu/h) Plate Input (Btu/h) 72000 72000 96000 96000 120000 120000 144000 144000 Table 8. Natural and LP Gas Orifice Sizes for Elevations Table 9. Natural and LP gas Orifice Sizes for Elevations between zero and 4999 ft. -
Page 24: Low Voltage Wiring
a switch to defeat its function. If a switch reopens Low Voltage Wiring on start-up, DO NOT reset the switch without Install the thermostat per the manufacturer’s instructions. identifying and correcting the fault condition which The low voltage (24 volt) connections from the thermostat caused the switch to trip. -
Page 25: Configuring The Blower
Configuring the Blower Measure the time (in seconds) required for the gas The variable speed blower kit is equipped with a micropro- meter to complete one revolution. cessor-controlled variable speed motor that is pre-pro- Convert the time per revolution to cubic feet of gas grammed to deliver optimum airflow in a variety of condi- per hour using Table 11. -
Page 26: Verifying And Adjusting Temperature Rise
Selecting The Cooling/Heat Pump Airflow thermostat. Connect a field supplied wire from the yellow "Y1" to the thermostat and the condensing unit, and In order to select the appropriate airflow for AC and HP another wire from "Y2" on the thermostat to "Y2" on the operation the nominal system capacity must be known. -
Page 27: Verifying Burner Operation
rises outside the specified range could result in premature WARNING: heat exchanger failure. To avoid electric shock, personal injury, or Place thermometers in the return and supply air stream as death, disconnect the electric power before close to the furnace as possible. The thermometer on the performing any maintenance. -
Page 28: Description Of Components
temperature below room temperature, shut off the power roll-out switch will open. The circulating air blower (and to the furnace, and replace the limit switch. combustion blower, if connected) will continue to operate if the flame roll-out switch opens. DESCRIPTION OF COMPONENTS Figure 27 shows the location of each of the functional Gas Valve components described below. -
Page 29: Maintenance
The installer must provide a high velocity filter and rack for MAINTENANCE a filter in the return air duct adjacent to the furnace, or in a It is recommended that the furnace be checked yearly. At return air grill to the furnace. Filters should be changed or a minimum, this check should include the following items. -
Page 30: Wiring Diagram
For Upflow and Downflow Residential Furnace with Variable Speed Blower Figure 26. Wiring Diagram for Upflow and Downflow Models with Variable Speed Blower... -
Page 31: Cleaning Of Flue Passages
Cleaning Of Flue Passages Remove the silicone rubber tube from the collector If the flue passages must be cleaned, follow the steps pan. below. See Figure 27 for component location and For *RA models: Remove the screws that hold the identification. -
Page 32: Installation/Performance Checklist
INSTALLATION/PERFORMANCE CHECK LIST LOCATION __________________________ CITY _____________________________ STATE _______ INSTALLER __________________________ CITY _____________________________ STATE _______ UNIT MODEL NUMBER _______________________ UNIT SERIAL NUMBER _______________________ Are Flue Connections tight? _________________ Minimum Clearances per Table 3? __________ Is there Proper Draft? ______________________ Is Vent free from restrictions? ________________ Electrical Connections tight? _______________ Line Voltage Polarity correct? ______________ Is the Filter(s) secured in place? ______________...
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