Nordyne RA 80+ series Installation Instructions Manual
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Nordyne RA 80+ series Installation Instructions Manual

Nordyne RA 80+ series Installation Instructions Manual

Residential
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Residential Gas Furnaces
Installation Instructions
*RA 80+ Series
High Efficiency Compact Upflow/Horizontal
These instructions are
primarily intended to
assist qualified individuals
experienced in the proper
installation of this type
appliance. Some local
codes require licensed
installation/service
personnel for this type
of equipment. Read all
instructions carefully
before starting the
installation.
!
WARNING:
Improper installation, adjustment,
alteration,
maintenance can cause injury or
property damage. Refer to this
manual for assistance. For
additional information consult a
qualified installer, service agency,
or the gas supplier.
!
WARNING:
If the information in these
instructions is not followed
exactly, a fire or explosion may
result, causing property damage,
personal injury or death.
service,
or
FOR YOUR SAFETY
Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
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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  • Page 1 Residential Gas Furnaces Installation Instructions *RA 80+ Series High Efficiency Compact Upflow/Horizontal These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this type appliance. Some local codes require licensed installation/service personnel for this type of equipment.

  • Page 2: Table Of Contents

    Table of Contents Furnace Specifications ......................3 Safety Information ......................3 Capacities-Furnace Airflow Data ..................4 Installation Requirements ......................5 Horizontal Furnace Installation ..................5 Venting and Combustion Air Requirements ............... 7 General ..........................7 Installation in an Unconfined Space ................. 7 Installation in a Confined Space ..................

  • Page 3: Furnace Specifications

    FURNACE SPECIFICATIONS - Upflow/Horizontal Models 27-3/4 24-3/4 19-3/4 3-15/16 25-3/4 1-9/16 25-3/4 1-9/16 3-1/2 22-13/16 3-1/2 22-13/16 34-5/8 30-1/2 27-7/8 25-1/8 (Bottom Return Opening) Bottom Return 1-1/4 Figure 1. Unit Dimensions in Inches FURNACE DIMENSIONS AND SHIPPING WEIGHTS Model Furnace Dimensions Shipping Number...

  • Page 4: Capacities-Furnace Airflow Data

    CAPACITIES — Furnace Airflow Data Table 2. Furnace Airflow Data...

  • Page 5: Installation Requirements

    by duct(s) sealed to the furnace casing distribution system as possible. See Table 1 for and terminating outside the space overall dimensions to determine the required containing the furnace. clearances in hallways, doorways, stairs, etc. 8. A gas-fired furnace for installation in a to allow the furnace to be moved to the installation residential garage must be installed as point.

  • Page 6: Horizontal Application

    Note: Edge or Line Gas Inlet Contact is Permissible Type “B” Vent Combustible Coil Plenum Platform Electrical Louver Door Supply Connection Figure 3. Horizontal Installation Figure 2. Horizontal Installation on a Platform Suspended in Attic or Crawl Space HORIZONTAL APPLICATION SIDE Upflow and Horizontal Furnaces UPFLOW APPLICATION...

  • Page 7: Venting And Combustion Air Requirements

    Clearances to Combustibles requirements. For Canadian installations consult This furnace is Design Certified by CSA Inter- Canadian Installations Codes and (CAN/CGA national for the minimum clearances to com- B149.1 or .2). bustible material listed in Table 3. Refer to the If the furnace is operated with inadequate air for furnace rating plate, located inside of the fur- combustion one of the flame roll-out switches...

  • Page 8: Installation In A Confined Space

    Ventilation Louvers at Vent or Vent or each end of attic Chimney Openings to Chimney adjacent space. Each opening must Outlet Air Duct must be at least 100 sq. in. be at least 1 sq. in. per 4,000 Btuh of or 1 sq.

  • Page 9: Outdoor Air Using Vertical Ducts

    Outdoor Air Using Horizontal Ducts (See Figure 8) Ventilation Louvers at Vent or each end of attic Chimney If combustion air is taken from outdoors through Outlet Air Duct horizontal ducts, the openings and ducts must must be at least 1 sq.

  • Page 10: Category I - Common Venting

    • Water softening chemicals designed to burn solid fuel. If the furnace vent is • De-icing salts or chemicals to be connected to a chimney serving a fireplace, • Carbon tetrachloride the fireplace must be sealed off from the chimney. •...

  • Page 11: Circulating Air Supply

    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: Seal any unused openings in the venting system.

  • Page 12: Return Air

    If outside air is used as return air to the furnace contains the airflow data for each furnace model. Where maximum airflow is 1800 CFM or more, for ventilation or to improve indoor air quality, the system must be designed so that the return air two openings must be used for return air.

  • Page 13: General

    furnace. The shut-off valve should be readily accessible for service and/or emergency use. Shut-Off Valve Consult the local utility or gas supplier for additional Some utilities require Shut-Off requirements regarding placement of the manual Automatic Gas Valve to be Valve (with manual 4 to 5 feet shut-off) above floor...
  • Page 14 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 15: Conversion

    replace the pressure switch. The approved high WARNING: altitude pressure switch kit is 903853. directions to convert the furnace are given below: FIRE OR EXPLOSION HAZARD 1. READ ALL INSTRUCTIONS BEFORE PROCEEDING WITH THE CONVERSION. Failure to follow the safety warnings exactly 2.

  • Page 16: Electrical Wiring

    ELECTRICAL WIRING Furnace Maximum Minimum Maximum Model Number Furnace Wire Fuse or Circuit Amperes Gauge Breaker Amps** General 045-08A Electrical connections must be made in 054-12A accordance with all applicable local codes and 072-12A ordinances, and with the current revision of the 072-12B National Electric Code (ANSI/NFPA 70).
  • Page 17 Field Supplied Field Supplied Fused Service Panel Connector Panel Field Line Voltage Wiring Black (Hot) Black Black Black Factory Line White (Neutral) White White White Voltage Wiring Green or Bare (Ground) Ground Ground Ground Junction Box (may be internal or external to the furnace). These Field Supplied Disconnect connections can be made in the Within Sight of Furnace...

  • Page 18: Low Voltage Wiring

    Low Voltage Wiring START-UP AND ADJUSTMENTS Install the thermostat per the manufacturer’s General instructions. The low voltage (24 volt) Prior to start-up, verify that: connections from the thermostat are made at 1. The line voltage power leads are securely the terminal strip on the integrated control in the connected, that the polarity of the furnace.

  • Page 19: Start-Up Procedures

    5. The blower door is in place, closing the sequence. (See the Sequence of door switch in the line voltage circuit. Operation). 6. The gas line has been purged and all 5. After the furnace has run for approximately connections are leak tight. five minutes, set the thermostat below room temperature and verify steps (9) Start-up Procedures...

  • Page 20: Wiring Diagram

    BLUE BLUE BLUE BLUE FLAME VENT BLOWER SUPPLY AIR FLAME ROLL-OUT PRESSURE VENT ROLL-OUT SWITCH SWITCH DECK SWITCH LIMIT SWITCH SWITCH SAFETY SWITCH PRESSURE SWITCH (93+ MODELS ONLY) (SELECT (SELECT (SELECT (ALL MODELS) (ALL MODELS) MODELS ONLY) MODELS ONLY) MODELS ONLY) WHITE BLACK WHITE (NEUTRAL)

  • Page 21: Verifying And Adjusting Temperature Rise

    3. Measure the time (in seconds) required for recommended setting. If the temperature rise the gas meter to complete one revolution. measured is outside the range specified, it may be necessary to change the blower speed. 4. Convert the time per revolution to cubic Lower blower speeds will increase the feet of gas per hour using Table 10.
  • Page 22 1 Igniter 8 Exhaust Adapter 2 Flame Sensor (Not Shown) 9 Low Voltage Transformer 3 Gas Valve 10 Burner Assembly 4 Flame Roll-out Switch 11 Supply Air Limit Switch 5 Pressure Switch 12 Blower Assembly 6 Control Board 13 Induced Draft Blower 7 Blower Door Switch 14 Vent Transition Figure 14.

  • Page 23: Verifying Operation Of The Supply Air Limit Switch

    Gas Valve Verifying Operation of the Supply Air Limit Switch The gas valve controls the flow of gas to the To verify operation of the supply air limit switch, burners. When the gas valve is energized it make sure that the blower door is in place and automatically opens and regulates the gas that there is power to the furnace.

  • Page 24: Air Filter(S)

    Cleaning Of Flue Passages Air filter(s) are not supplied with the furnace If the flue passages must be cleaned, follow the as shipped from the factory. steps below. See Figure 14 for component The installer must provide a high velocity filter location and identification.

  • Page 25: Cleaning Of Burners

    joint union in the gas supply piping at the brush attached to a length of high grade furnace. stainless steel cable, such as drain cleanout cable. Attach variable speed 7. Remove the piping between the gas valve reversible drill to the other end of the spring and the ground-joint union, if necessary.

  • Page 26: Sequence Of Operation

    Sequence of Operation successful, it remains there. Minimum and The operating sequences for the heating, maximum warm-up time limits are set at 6 cooling, and fan modes are described below. and 54-seconds, respectively. Refer to the field and furnace wiring diagrams; 7.

  • Page 27: Fan Mode

    Thermostat W G Y R Twin Twin Terminal Terminal Unit Figure 15. Twinning 4. The circulating air blower is de-energized 7. Is the filter dirty or plugged? after a 90-second delay. 8. Is the flame sensor coated? (Remove and clean with steel wool.) Fan Mode: If the furnace locks out after 5 attempts for 1.

  • Page 28: Installation/Performance Check List

    INSTALLATION/PERFORMANCE CHECK LIST LOCATION _________________ CITY ___________________ STATE ______________ INSTALLER ________________ CITY ___________________ STATE ______________ UNIT MODEL NUMBER _________________________________ UNIT SERIAL NUMBER _________________________________ Minimum Clearances per Table 3? ______ Are Flue Connections tight? _____________ Electrical Connections tight? __________ Is there Proper Draft? __________________ Line Voltage Polarity correct? __________ Is Vent free from restrictions? ____________ Supply Voltage: _________ Volts...

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