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INSTALLATION INSTRUCTIONS
NF80XV
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
A thermostat is not included and must be ordered
separately.
In all cases, setup is critical to ensure proper system
operation.
Field wiring is illustrated in these instructions.
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.
GE Appliances
A Haier Company
Appliance Park
Louisville, KY 40225
507653-04G / 31-5000661-1
This manual must be left with the homeowner for future reference.
WARNING
WARNING
Table of Contents
Unit Dimensions ..........................................................2
NF80XV Gas Furnace .................................................4
Shipping and Packing List ...........................................4
Safety Information .......................................................4
General ........................................................................6
Combustion, Dilution & Ventilation Air .........................6
Setting Equipment .......................................................9
Filters .........................................................................12
Duct System ..............................................................12
Venting.......................................................................13
Gas Piping .................................................................20
Electrical ....................................................................22
Integrated Control ......................................................31
Blower Performance ..................................................35
Start-Up .....................................................................39
Gas Pressure Adjustment ..........................................40
High Altitude ..............................................................40
Other Unit Adjustments..............................................41
Heating Sequence of Operation ................................41
Service.......................................................................43
Repair Parts List ........................................................45
Integrated Control Diagnostic Codes.........................46
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
Issue 2329
Warm Air Gas Furnace
CAUTION
(P) 507653-04G
Page 1 of 56
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Summary of Contents for Haier GE APPLIANCES NF80XV
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Page 1: Table Of Contents
CAUTION As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment. GE Appliances A Haier Company Appliance Park Louisville, KY 40225 (P) 507653-04G 507653-04G / 31-5000661-1 Issue 2329... -
Page 2: Unit Dimensions
Unit Dimensions NOTE - 5C 1800 cfm must have one of the following: Single side return air and Optional Return Air Base with transition that must accommodate required maintain proper velocity. Bottom return air. Return air from both sides. Bottom and one side return air. See Blower Performance Tables for additional 3-1/8 (79) information. - Page 3 Heat Exchanger Combustion Air Inducer Gas Valve Screen Reducer 2” PVC Pipe 2-1/2” Length Elbow Intake Air Elbow Control Box (includes integrated control, Access Panels interlock switch and transformer) Blower Assembly Power Choke (4 and 5 ton only) Figure 1. Expanded View 507653-04G / 31-5000661-1 Issue 2329 Page 3 of 56...
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Page 4: Nf80Xv Gas Furnace
NF80XV Gas Furnace In the USA, installation of gas furnaces must conform with The NF80XV gas furnace is equipped with a two-stage, local building codes. In the absence of local codes, units variable speed integrated control. must be installed according to the current National Fuel Each NF80XV unit is shipped ready for installation in the available from the following address: shipped with the bottom panel in place. -
Page 5: Use Of Furnace As A Construction Heater
Installed in Combination with a Cooling Coil Use of Furnace as a Construction Heater When this furnace is used with cooling units, it shall be Units may be used for heating of buildings or structures installed in parallel with, or on the upstream side of, cooling under construction, if the following conditions are met to units to avoid condensation in the heating compartment. -
Page 6: General
NOTWITHSTANDING THE FOREGOING, INSTALLER Combustion, Dilution & Ventilation Air IS RESPONSIBLE FOR CONFIRMING THAT THE USE OF CONSTRUCTION HEAT IS CONSISTENT WITH THE POLICIES AND CODES OF ALL REGULATING ENTITIES. ALL SUCH POLICIES AND CODES MUST BE ADHERED TO. that was needed. In today’s homes, tight construction practices make it necessary to bring in air from outside for combustion. -
Page 7: Air From Inside
Even a small leak around the base of the unit at the platform or at the return air duct connection can cause a potentially CAUTION dangerous negative pressure condition. Air for combustion Do not install the furnace in a corrosive or contaminated either from inside the building or from outside. - Page 8 When ducts are used, they shall be of the same cross CHIMNEY sectional area as the free area of the openings to which OR GAS VENT they connect. The minimum dimension of rectangular VENTILATION LOUVERS (Each end of attic) air ducts shall be no less than 3 inches (75 mm). In calculating free area, the blocking effect of louvers, grilles, OUTLET or screens must be considered.
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Page 9: Setting Equipment
Setting Equipment Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 8. WARNING Do not install the furnace on its front or its back. Do not connect the return air ducts to the back of the furnace. - Page 10 Return air can be brought in through the bottom or either furnace is installed on a platform with bottom return, make an airtight seal between the bottom of the furnace and the platform to ensure that the furnace operates properly and safely.
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Page 11: Horizontal Applications
Removing the Bottom Panel Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or Remove the two screws that secure the bottom cap to the alcove installations are shown in Figure 12. furnace. Pivot the bottom cap down to release the bottom panel. -
Page 12: Filters
CAUTION WARNING If this unit is being installed in a space serviced by an exhaust fan, power exhaust fan, or other device which may create a negative pressure in the space, take care of exhausted air as well as the maximum volume of and performance may be reduced. -
Page 13: Venting
2” PVC Pipe Reducer in through the bottom or either side of the furnace. If a 2-12” Length Screen furnace with bottom return air is installed on a platform, Elbow make an airtight seal between the bottom of the furnace 4-1/2”... - Page 14 Use self drilling sheet metal screws or a mechanical IMPORTANT the vent pipe, it is recommended that three be used. Drive Once the venting system is installed, attach the one self drilling screw through the front and one through “Disconnected Vent” warning sticker to a visible area each side of the vent pipe and collar.
- Page 15 checked periodically to ensure that it is clear and free of SEALED obstructions. MAX. LENGTH Do not install a manual damper, barometric draft regulator, -- SEE NOTE 1 BELOW. 5 ft. (1.5 m) MIN. LENGTH -- AS EXTERIOR minimum SHORT AS PRACTICAL CHIMNEY WITH METAL Never connect a Category I appliance to a chimney that is...
- Page 16 18. The common vent diameter must always be at least as Connector Diameter Maximum Horizontal large as the largest vent connector diameter. inches (mm) Connector Length feet (m) 3 (76) 4 (102) 6 (1.83) 5 (127) 20. Do not install a manual damper, barometric draft 6 (152) 9 (2.74) 7 (178)
- Page 17 will operate at maximum speed. Do not operate a Follow the lighting instructions. Turn on the appliance that is being inspected. Adjust the thermostat so that the appliance operates continuously. After the main burner has operated for 5 minutes, test cigarette, cigar, or pipe.
- Page 18 Capacity of Type B Double Wall Vents with Type B Double Wall Connectors Serving a Single Category I Appliance 3 inch 4 inch 5 inch 6 inch Height H Lateral L (feet) (feet) Appliance Input Rating in Thousands of Btu per Hour NOTE: Table 3.
- Page 19 Vent Connector Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Vent Connector 3 inch 4 inch 5 inch 6 inch Height H Rise R Appliance Input Rating in Thousands of Btu per Hour (feet) (feet) Table 4.
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Page 20: Gas Piping
When connecting the gas supply piping, consider Gas Piping furnace rating to avoid excessive pressure drop. Table The gas piping must not run in or through air ducts, CAUTION clothes chutes, gas vents or chimneys, dumb waiters, or elevator shafts. the authority that has jurisdiction, black iron pipe shall be installed at the gas valve and extend outside the 15 feet (4.57 m) upward toward the meter from the... - Page 21 IMPORTANT The NF80XV is approved for natural gas only. Do not attempt to convert and or install in LP propane applications. MANUAL MAIN SHUT-OFF VALVE MANUAL MAIN SHUT-OFF VALVE Gas Valve Gas Valve GROUND JOINT UNION GROUND JOINT UNION DRIP LEG DRIP LEG Left Side Piping Right Side Piping...
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Page 22: Leak Check
Leak Check Electrical installed piping connections for gas leaks. Use a ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures to test for gas leaks. The furnace must be isolated from the gas supply CAUTION system by closing the individual manual shut-off valve during any gas supply system at pressures greater than Electrostatic discharge can affect electronic components. - Page 23 The power supply wiring must meet Class I restrictions. An unpowered, normally open (dry) set of contacts with Protected by either a fuse or circuit breaker, select connections and may be connected to 24V or 120V. nameplate. NOTE: neutral leg of the circuit can be connected to one of the in the heating mode.
- Page 24 Thermostat Selection Generator Use - Voltage Requirements The following requirements must be kept in mind when The NF80XV is designed to operate in a SINGLE-STAGE specifying a generator for use with this equipment: mode or TWO-STAGE mode using a conventional thermostat.
- Page 25 W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Heat Pumps Cooling FURNACE OUTDOOR T'STAT TERM. STRIP UNIT NOTE: Intact Intact Intact *Not required on all units FURNACE OUTDOOR T'STAT TERM. STRIP UNIT NOTE: Intact...
- Page 26 W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Heat Pumps Cooling FURNACE OUTDOOR T'STAT TERM. STRIP UNIT Intact Intact *Not required on all units FURNACE OUTDOOR T'STAT TERM. STRIP UNIT with t’stat with Intact mode *Not required on all units...
- Page 27 W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Heat Pumps Cooling FURNACE HEAT PUMP TERM. STRIP T'STAT Stage Heat Pump Intact Intact fuel capabilities gas heat control outdoor sensor FURNACE T'STAT TERM.
- Page 28 W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Heat Pumps Cooling FURNACE HEAT PUMP TERM. STRIP T'STAT Stage Heat Pump fuel capabilities Intact Capable of control with mode outdoor sensor FURNACE HEAT PUMP TERM.
- Page 29 Figure 25. Schematic Wiring Diagram 507653-04G / 31-5000661-1 Issue 2329 Page 29 of 56...
- Page 30 060*3A 080*4B 100*5C DISCHARGE AND OUTDOOR AIR TERMINALS NOT USED THERMOSTAT CONNECTIONS ARE FOR 24V SYSTEM ONLY DH TERMINAL NOT USED Figure 26. Typical Field Wiring Diagram Page 30 of 56 Issue 2329 507653-04G / 31-5000661-1...
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Page 31: Integrated Control
Integrated Control HS/ CAI LINE 1 NEUTRAL 7 SEGMENT LED FLAME SENSE INDOOR BLOWER DIAGNOSTIC CONNECTOR PUSH BUTTON DIP SWITCHES 12 PIN LOW OUTDOOR AIR VOLTAGE SENSOR CONNECTOR TERMINALS DISCHARGE AIR W915 Y1 TO Y2 SENSOR 2 STAGE COMPR TERMINALS W951 R TO O HEAT PUMP TB83... - Page 32 Blower Off Delay Switch 3 Switch 4 Conventional Thermostat (seconds) NF80XV units are equipped with a two-stage, variable speed integrated control. This control manages ignition 90 (Factory) timing, heating mode fan off delays and indoor blower speeds based on selections made using the control dip switches and jumpers.
- Page 33 Switches 9 and 10 — Cooling Mode Blower Speed Ramping Option D Ramping — Blower speed ramping may be used to • • Once demand is met, motor ramps down to stop. are factory set at option A which has the greatest effect cooling mode blower speed ramping options that will result from different switch settings.
- Page 34 Error Code Recall Mode NOTE: Select “E” from the menu to access the most recent 10 error codes. Select “c” from the Error Code Recall menu to clear all error codes. Button must be pressed a second codes. Press the button until a solid “=” is displayed to exit WARNING the Error Code Recall mode.
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Page 35: Blower Performance
Blower Performance NF80X060V3A 0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range HEATING Heating Speed DIP Switch Settings 1015 1115 1060 Factory Default -12% -18% COOLING Cooling Speed DIP Switch Settings High High 1025 1150... - Page 36 NF80X100V5C 0 through 0.8 in. w.g. (Heating) and 0 through 1.0 in. w.g. (Cooling) External Static Pressure Range HEATING Heating Speed DIP Switch Settings 1600 1770 1510 1670 1435 1585 1355 1505 Factory Default 1275 1415 1185 1335 -12% 1120 1245 -18% 1035...
- Page 37 Allowable Heating Speeds Model Default NF80X060V3A Allowed NF80X080V4B Allowed Allowed Allowed Factory Setting Allowed Allowed Allowed NF80X100V5C Allowed Table 14. Allowable Circulation Speeds Model All Models Factory Setting Table 15. Operating Sequence System Demand System Response Blower Thermostat Demand Relative Humidity System Condition Step Compressor...
- Page 38 Operating Sequence System Demand System Response Thermostat Demand Relative Humidity Blower System Condition Step Compressor Comments Status (COOL) Normal Operation Acceptable 70%* Compressor and indoor blower follow thermostat demand Normal Operation Acceptable High 100% Room Thermostat Call for First Stage Cooling Basic Mode (only active on a Y1 thermostat demand) Normal Operation Acceptable...
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Page 39: Start-Up
WARNING For Your Safety, Read Before Operating or explosion may result causing property damage, personal injury, or loss of life. WARNING Do not use this furnace if any part has been under Gas Valve Operation water. Immediately call a licensed professional service See Figure 28 technician (or equivalent) to inspect the furnace and to replace any part of the control system and any gas... -
Page 40: Gas Pressure Adjustment
Turning Off Gas to Unit Supply Line Pressure Set the thermostat to the lowest setting. A port on the inlet side of the gas valve provides access to the supply pressure tap. Loosen the screws and connect Turn off all electrical power to the unit if service is to a manometer to measure supply pressure. -
Page 41: Other Unit Adjustments
Other Unit Adjustments A - Heating Sequence Integrated Control Thermostat Selection DIP Switch 1 OFF in “Two-Stage” Position Primary and Secondary Limits (Factory Setting) The primary limit is located on the heating compartment vestibule panel. The secondary limits (if equipped) are close sending a signal to the integrated control. - Page 42 After the 20-second warm-up period has ended, the B - Heating Sequence -- Integrated Control Thermostat ignition occurs. At the same time, the control module Selection DIP Switch 1 ON in “Single-Stage” Position sends a signal to begin an indoor blower 30-second ON-delay.
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Page 43: Service
Evaluate the heat exchanger integrity by inspecting Service the heat exchanger per the AHRI heat exchanger inspection procedure. This procedure can be viewed at www.ahrinet.org. WARNING furnace. Fresh air grilles and louvers (on the unit and ELECTRICAL SHOCK, FIRE, OR EXPLOSION in the room where the furnace is installed) must be HAZARD Failure 10 follow safety warnings exactly could result in... -
Page 44: Gas Valve
Cleaning the Burner air fuel plenum assembly from the unit. The air intake assembly and air fuel plenum can be removed as one NOTE: component. To clean burner and intake debris screen, run a 1. Turn off both electrical and gas power supplies to vacuum cleaner over the face of burners. -
Page 45: Repair Parts List
Repair Parts List The following repair parts are available through independent dealers. When ordering parts, include the complete furnace model number listed on the CSA International nameplate. All service must be performed by a licensed professional installer (or equivalent), service agency, or gas supplier. Cabinet Parts Heating Parts •... -
Page 46: Integrated Control Diagnostic Codes
Integrated Control Diagnostic Codes Display Action (when button released) No change (idle)* Remain in idle mode Solid “E” Enter diagnostic recall mode Solid “D” Discharge air installed Solid “F” Solid “P” (variable speed only) Soft Disable * No change implies the display will continue to show whatever is currently being displayed for normal operation After the “P”... - Page 47 Code Action Required to Clear and Recover • seconds ON, 0.5 seconds OFF). Cubic feet per minute (cfm) setting for indoor setting for current mode displayed. codes. Heat pump stage (1 second ON, 0.5 seconds Gas Heat stage (1 second ON, 0.5 seconds OFF) Defrost mode.
- Page 48 Code Action Required to Clear and Recover E201 Indoor blower communication failure including power communicate with blower motor outage. Lost communication with indoor blower motor. Possible causes: motor not powered, loose wiring. Problem may be on control or motor side. Cleared after fault recovered.
- Page 49 Code Action Required to Clear and Recover E228 Combustion air inducer calibration failure Unable to perform pressure switch calibration. Check vent system and pressure switch wiring connections. Resumes normal operation after fault is cleared E229 pressure switch did not close in allowed time. No action is needed.
- Page 50 Code Action Required to Clear and Recover E291 performance. 1-hour soft lockout. Cleared when heat call E292 Indoor blower motor unable to start due to stuck wheel, etc.) Replace motor or wheel if assembly does not operate or meet performance standards. 1-hour soft lockout.
- Page 51 Furnace control in IDLE mode (No Heating, cooling, or indoor fan operation) Turn room thermostat to OFF. To enter Program hold button next UNIT SIZE FURNACE MODEL to 7-segment LED CODE display until solid NF80X060V3A “ ” symbol appears. Release button. IMPORTANT: Field replacement controls NF80X080V4B NF80X100V5C...
- Page 52 Troubleshooting: Heating Sequence of Operation CALL FOR FIRST-STAGE HEAT CALL FOR 1ST STAGE HEAT (LOW FIRE) INDOOR BLOWER OFF AFTER HEAT FAN OFF DELAY (LOW HEAT SPEED) INDOOR LIMIT BLOWER OFF SWITCH HIGH ERROR INDOOR SOFT LOCKOUT − CLOSED WITHIN 3 AFTER HEAT FAN LIMIT SWITCH CODE...
- Page 53 Troubleshooting: Heat Sequence of Operation (continued) CALL FOR SECOND-STAGE HEAT CALL FOR 2ND STAGE HEAT (HIGH FIRE) SINGLE STAGE 2 STAGE THERMOSTAT THERMOSTAT 2ND STAGE RECOGNITION DELAY ON DELAY (30 SECONDS) EXPIRED? EXPIRED? ONLY FOR 1ST REQUEST FO R 2ND STAGE HEAT INDUCER SWITCHED TO HIGH SPEED HIGH...
- Page 54 Troubleshooting: Heat Sequence of Operation (continued) CALL FOR HEAT SATISFIED FIRST-STAGE HEAT SECOND-STAGE HEAT RUN MODE: 1ST OR 2ND STAGE CALL FOR HEAT. ALL INPUTS MONITORED (LIMIT, PRESSURE, CALL FOR HEAT/COOL, FLAME LEVEL) 2ND STAGE HEAT 2ND STAGE CALL FOR HEAT SATISFIED? DE−ENERGIZE 2ND STAGE GAS VALVE...
- Page 55 Troubleshooting: Heat Sequence of Operation (continued) CALL FOR COOLING 1ST STAGE COOLING REQUEST RECEIVED WAIT FOR COMPRESSOR TIMED OFF DELAY TO EXPIRE ENERGIZE 1ST STAGE COOLING CONTACTOR (COMPRESSOR & FAN) INDOOR BLOWER 2 SECOND ON DELAY ENERGIZE INDOOR BLOWER (LOW COOLING MODE) MAINTAIN INDOOR BLOWER (LOW COOLING MODE)
- Page 56 Troubleshooting: Continuous Fan Sequence of Operation CALL FOR FAN CALL FOR FAN INDOOR BLOWER ON CONTINUOUS FAN SPEED CALL FOR FAN MAINTAIN INDOOR BLOWER AT REMOVED? CONTINUOUS FAN REQUEST MAINTAIN INDOOR FOR COOLING GO TO CALL FOR COOLING BLOWER AT RECEIVED? CONTINUOUS FAN REQUEST...
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