Haier GE NF97DM Installation Instructions Manual
Haier GE NF97DM Installation Instructions Manual

Haier GE NF97DM Installation Instructions Manual

Warm air gas furnace downflow air discharge direct vent
Hide thumbs Also See for GE NF97DM:

Advertisement

Quick Links

INSTALLATION INSTRUCTIONS
NF97DM
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.
WARNING
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.
NOTICE
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.
GE Appliances
A Haier Company
Appliance Park
Louisville, KY 40225
This manual must be left with the homeowner for future reference.
Warm Air Gas Furnace

Table of Contents

Unit Dimensions ............................................................2
Parts Arrangement.........................................................3
Gas Furnace ..................................................................4
Shipping and Packing List .............................................4
Safety Information .........................................................4
General ..........................................................................6
Installation .....................................................................6
Filters .............................................................................9
Duct System ..................................................................9
Venting.........................................................................13
Condensate Piping ......................................................24
Gas Piping ...................................................................27
Electrical ......................................................................29
Blower Performance ....................................................40
Unit Start-Up ................................................................44
Other Unit Adjustments ...............................................48
Heating Sequence of Operation .................................49
Service.........................................................................50
Repair Parts List ..........................................................52
Integrated Control Diagnostic Codes...........................52
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
Issue 2241
Direct Vent
CAUTION
(P) 507029-05G
Page 1 of 65

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GE NF97DM and is the answer not in the manual?

Questions and answers

Summary of Contents for Haier GE NF97DM

  • 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) 507029-05G Issue 2241 Page 1 of 65...
  • Page 2: Unit Dimensions

    Unit Dimensions 9/16 (14) COMBUSTION Flue Condensate Trap Assembly AIR INTAKE Furnished for external RETURN AIR field installation (178) OPENING EXHAUST AIR on either side of unit. OUTLET (See installation instructions for additional information.) 2-1/16 (52) 9/16 2-1/4 (14) (57) (127) TOP VIEW 27-3/4...
  • Page 3: Parts Arrangement

    Parts Arrangement Blower Deck Blower Assembly Control Blower Access Cabinet Panel Burner Access Heat Exchanger Panel Assembly Combustion Primary Air Inducer Limit Gas Valve Burner Box and Manifold Assembly Figure 1. Issue 2241 Page 3 of 65...
  • Page 4: Gas Furnace

    Gas Furnace Safety Information The NF97DM Category IV gas furnace is equipped with a variable capacity, variable speed integrated control. Each NF97DM DANGER position. DANGER OF EXPLOSION! The furnace is equipped for installation in natural gas There are circumstances in which odorant used with applications only.
  • Page 5 For installation in a residential garage, the furnace must be NOTE: installed so that the burner(s) and the ignition source are The furnace must be located or protected to avoid physical damage by vehicles. When a furnace is installed in a public garage, hangar, or other building that has a hazardous In Canada, all electrical wiring and grounding for the unit atmosphere, the furnace must be installed according to...
  • Page 6: General

    Blower and vestibule access panels must be in place Installation on the furnace at all times. Setting Equipment system, and evaporator coils must be thoroughly WARNING completion. Do not install the furnace on its front or its back. See All furnace operating conditions (including ignition, Figure 5.
  • Page 7 Units with 1/2 HP Blower Motor Figure 6. Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or alcove installations are shown in Figure 7. * Front Back Sides 0† WARNING Vent Improper installation of the furnace can result in Floor NC‡...
  • Page 8 Figure 8. Figure 9. Installation on Combustible Flooring strips. NOTE: ordered separately. See Table 2 for opening size to Set the furnace over the plenum. Ensure that the seal between the furnace and plenum is adequate. CAUTION Installation on Cooling Coil Cabinet installed directly on carpeting, tile, or other combustible NOTE: Front to Rear...
  • Page 9: Filters

    Duct System Return air may be brought in only through the top opening of Use industry approved standards to size and install the steps should be taken when installing plenum: supply and return air duct system. This will result in a quiet and low static system that has uniform air distribution.
  • Page 10 CAUTION Schedule 40 PVC (Pipe) D1785 and should be kept away from all sources of ignition. Schedule 40 PVC (Fittings) D2466 Schedule 40 CPVC (Pipe) F441 making joints. Good ventilation should be maintained to Schedule 40 CPVC (Fittings) F438 vapors. Avoid contact of cement with skin and eyes. SDR-21 PVC or SDR-26 PVC (Pipe) D2241 SDR-21 CPVC or SDR-26 CPVC (Pipe)
  • Page 11 STANDARD CONCENTRIC Outdoor Outdoor Exhaust 1-1/2” 2” 3” Exhaust Flush Accelerator Concentric Concentric Concentric VENT Accelerator Mount Kit (Dia. X Length) Unit PIPE DIA. (Dia. X Length) (in.) 71M80 69M29 60L46 1-1/2” X 12” 2” X 12” 51W11 ** or 44W93+ +44W92++ +44W92++ 1-1/2...
  • Page 12 Remove inner blower door. holes in cabinet not used with side vent clamps. Remove access panels. Joint Cementing Procedure white PVC pipes inside the vestibule area. See Figure All cementing of joints should be done according to the Loosen the clamp that secures the pipes at the blower deck.
  • Page 13: Venting

    Exhaust Piping Venting See Figure 19 and Figure 21 Route piping to outside of structure. Continue with Piping Suspension Guidelines installation following instructions given in piping termination section. CAUTION stack that also serves another gas appliance. If vertical insert PVC pipe inside the stack until the end is even NOTE: with the top or outlet end of the metal stack.
  • Page 14 Min. Equiv. Unit Example Vent Length 5 ft. plus 2 elbows of 1-1/2”,2”, 2-1/2” or 3” diameter pipe 070, 090, Furnace capacity? 5 ft. plus 2 elbows of 2”, 2-1/2 15 ft.* or 3” diameter pipe 5 ft. plus 2 elbows of 2-1/2” or 3”...
  • Page 15 Maximum Allowable Intake or Exhaust Vent Length (feet) Standard Termination at Elevation 0 - 4,500 ft 1-1/2” Pipe 2” Pipe 2-1/2” Pipe 3” Pipe Number of Model Model Model Model 90° Elbows Used Standard Termination at Elevation 4,501 - 10,000 ft 1-1/2”...
  • Page 16 Maximum Allowable Intake or Exhaust Vent Length (feet) Concentric Termination at Elevation 0 - 4,500 ft 1-1/2” Pipe 2” Pipe 2-1/2” Pipe 3” Pipe Number of Model Model Model Model 90° Elbows Used Concentric Termination Elevation 4,501 - 10,000 ft 1-1/2”...
  • Page 17 2” 2” 2” DO NOT transition from smaller to larger pipe size in horizontal runs of exhaust pipe. NOTE: 1-1/2” Vent Pipe Diameter Allowed Only on 070 Units 3” 1-1/2” TRANSITION TRANSITION Exhaust *2” *2” Air Intake TOP VIEW * When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible. NOTE Exhaust pipe and intake pipe must be the same diameter.
  • Page 18 Pipe Length 4” Maximum (Not Furnished) 3” 2” 2” TRANSITION *2” 2” Plate (Furnished) 90° Elbow (Not Furnished) TOP VIEW * When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible. NOTE Intake pipe and exhaust pipe must be the same diameter. Figure 21.
  • Page 19 VENT TERMINATION CLEARANCES FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA INSIDE CORNER DETAIL Fixed Operable Fixed Closed Closed Operable AREA WHERE TERMINAL AIR SUPPLY INLET VENT TERMINAL IS NOT PERMITTED US Installations Canadian Installations Clearance above grade, veranda, 12 inches (305mm) or 12 inches (305mm) 12 inches (305mm) or 12 inches (305mm) porch, deck or balcony...
  • Page 20 FIELD FABRICATED WALL TERMINATION NOTE − FIELD−PROVIDED REDUCER MAY BE 2” (51mm) 3” (76mm) REQUIRED TO ADAPT LARGER VENT PIPE SIZE Vent Pipe Vent Pipe TO TERMINATION A− Minimum clearance above grade or average 12” (305 mm) 12” (305 mm) snow accumulation B−...
  • Page 21 Maximum Allowable Vent Pipe Length without Insulation in Unconditioned Space for Winter Design Winter Design Temperatures Vent Pipe Diameter ºF (ºC) 1-1/2 in. 2 in. 32 to 21 (0 to -6) 2-1/2 in. 3 in. 1-1/2 in. 2 in. 20 to 1 (-7 to -17) 2-1/2 in.
  • Page 22 the intake pipe without a termination elbow is 8” and a minimum distance of 6” with a termination elbow. See Figure 24. wall to position above snow accumulation or other obstructions, piping must be supported every 24” Conditioned Space (610 mm) as shown in Figure 24. In addition, close Exhaust Pipe Pipe Insulation...
  • Page 23 Figure 28. Exiting Exhaust and Intake Vent 1 1/2” (38mm) accelerator provided on 71M80 & 44W92 EXHAUST Figure 31. Flush Mount Side Wall Termination kits for -045 and -070 models VENT 51W11 FLASHING 12” (305mm) INTAKE (Not Furnished) Minimum STRAIGHT-CUT OR Above Average ANGLE-CUT IN DIRECTION OF ROOF SLOPE *...
  • Page 24: Condensate Piping

    If unit will be started immediately upon completion of Condensate Piping installation, prime trap per procedure outlined in Unit Start-Up section. NOTE: condensate piping. Refer to Figure 33 and Figure 34 for condensate trap locations. NOTE: Condensate line must slope downward away from the trap to drain.
  • Page 25 IMPORTANT When combining the furnace and evaporator coil drains together, the A/C condensate drain outlet must be vented to relieve pressure in order for the furnace pressure switch to operate properly. Figure 37. Evaporator Coil Using a Common Drain CAUTION lines for drain line.
  • Page 26 Optional Condensate Drain Connection Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) 90° Elbow 3/4 inch PVC (not furnished) Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) Condensate Drain Connection In Unit 1 (25 mm) Min. Vent 2 (50 mm) Max.
  • Page 27: Gas Piping

    Leak Check Gas Piping installed piping connections for gas leaks. Use a CAUTION to test for gas leaks. The furnace must be isolated from the gas supply authority that has jurisdiction, black iron pipe shall be during any gas supply system at pressures greater than furnace cabinet.
  • Page 28 Left Side Piping AUTOMATIC MANUAL (Standard) GAS VALVE MAIN SHUT-OFF MANUAL (with manual VALVE AUTOMATIC MAIN SHUT-OFF shut-off valve) (1/8 in. NPT GAS VALVE VALVE plugged tap (with manual (1/8 in. NPT shown) shut-off valve) plugged tap shown) GROUND JOINT UNION GROUND JOINT...
  • Page 29: Electrical

    Removal of the Furnace from Common Vent Electrical a venting system commonly run with separate gas ELECTROSTATIC DISCHARGE (ESD) appliances, the venting system is likely to properly vent the remaining attached appliances. Precautions and Procedures Conduct the following test while each appliance is operating and the other appliances (which are not operating) remain CAUTION connected to the common venting system.
  • Page 30 One 24V “H” terminal is provided on the furnace DIP switch and onboard link settings for 24V thermostat applications. up to 0.5 amp can be connected to this terminal with the ground leg of the circuit being connected to either The power supply wiring must meet Class I restrictions.
  • Page 31 Indoor Blower Speeds Generator Use - Voltage Requirements The following requirements must be kept in mind when NOTE: When the thermostat is set to “FAN ON”, the indoor specifying a generator for use with this equipment: blower will run continuously at 38% percent of the second stage cooling speed when there is no cooling or heating •...
  • Page 32 Figure 43. NF97DM Typical Field Wiring Diagram Page 32 of 65 Issue 2241...
  • Page 33 NEUTRAL TERMINALS COMBUSTION AIR INDUCER CONNECTOR IGNITOR FLAME CONNECTOR SENSE DIAGNOSTIC LINE VOLTAGE PUSH BUTTON TERMINALS DIP SWITCHES INDOOR BLOWER CONNECTOR OUTDOOR AIR SENSOR TERMINALS 7-SEGMENT DIAGNOSTIC LED W915 Y1 TO Y2 DISCHARGE AIR SENSOR W951 R TO O TERMINALS W914 R TO DS FACTORY TEST W915...
  • Page 34 DIP Switch Settings and On-Board Links W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Two-Stage Heat Pumps Cooling FURNACE OUTDOOR T'STAT TERM. STRIP UNIT 1 Heat / 1 Cool NOTE: Intact Intact Intact *Not required on all units...
  • Page 35 DIP Switch Settings and On-Board Links W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Two-Stage Heat Pumps Cooling FURNACE OUTDOOR T'STAT TERM. STRIP UNIT 2 Heat / 2 Cool Intact Intact *Not required on all units FURNACE OUTDOOR...
  • Page 36 DIP Switch Settings and On-Board Links W915 W914 W951 Thermostat Wiring Connections (Y1 to Y2) DIP Switch 1 (DS to R) (Oto R) Two-Stage Heat Pumps Cooling FURNACE HEAT PUMP TERM. STRIP T'STAT 67M41* Dual Fuel Single- Stage Heat Pump Thermostat w/dual Intact Intact...
  • Page 37 Operation Thermostat Switch 1 Switch 2 Switch 3 Variable Capacity Heat Two Stage (40% to 100%) 2nd stage delay OFF = 7 minutes Three Stage Heat ON = 12 minutes Single Stage (40%, 70%, 10%) 3rd stage delay Two Stage Heat Single Stage (W1 70%, W2 100%) Table 14.
  • Page 38 Ramping Option “C” Adjustment Switch 10 Switch 11 • + 10% • Once demand is met, motor runs at 100% for 45 NORMAL (Factory) seconds then ramps down to stop. MOTOR TEST Table 17. Cooling Mode Blower Speed Adjustment Ramping Option “D” Switches 12 and 13 - Cooling Mode Blower Speed Ramping - Blower speed ramping may be used to enhance •...
  • Page 39 On Board Links Field Test Mode On Board links must be clipped (when applicable) before Use the diagnostic push button to scroll through the menu unit is placed into operation with a 24V thermostat. as described above. Release the button when the LED On Board Link W914 DS to R While in the Field Test mode, the technician can: On Board link W914, is a clippable connection between...
  • Page 40: Blower Performance

    Blower Performance NF97D070M3B HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range Heating Input Range and Blower Volume - CFM Heating Adjust CFM Selections 100%. Increase (+15%) Heat CFM 1022 1118 Increase (+7.5%) Heat CFM 1041 Default Heat CFM Decrease (-7.5% ) Heat CFM Decrease (-15% ) Heat CFM...
  • Page 41 NF97D110M5C HEATING BLOWER PERFORMANCE Heating Input Range and Blower Volume - CFM Heating Adjust CFM Selections 100% Increase (15%) Heat CFM 1096 1286 1475 1665 1855 2045 Increase (+7.5%) Heat CFM 1017 1199 1380 1562 1744 1926 Default Heat CFM 1112 1285 1459...
  • Page 42 Allowable Heating Speeds Model Number -15% -7.5% Default +7.5% +15% All Models Allowed Allowed Factory Setting Allowed Allowed Table 21. Allowable Circulation Speeds Model Number 38% of Second Stage Cooling All Models Factory Setting Table 22. Operating Sequence System Demand System Response Thermostat Relative Humidity...
  • Page 43 Operating Sequence System Demand System Response Thermostat Demand Relative Humidity Blower System Step Compressor Comments Condition (COOL) Status Stage Stage NO CALL FOR DEHUMIDIFICATION Normal Operation Acceptable Compressor and indoor - Y1 blower follow thermostat Normal Operation demand Acceptable High 100% - Y2 ROOM THERMOSTAT CALLS FOR FIRST STAGE COOLING...
  • Page 44: Unit Start-Up

    Adjust the thermostat to deactivate the heating demand Unit Start-Up and again wait for the combustion air inducer to stop. FOR YOUR SAFETY READ BEFORE OPERATING water to ensure proper condensate drain operation. BEFORE PLACING THE UNIT INTO OPERATION WARNING Smell all around the furnace area for gas.
  • Page 45 Move the gas valve switch to the OFF position. See NOTE: Figure 45. Gas Meter Clocking Chart Seconds for One Revolution call the gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you do not smell gas Natural Unit 1 cu ft...
  • Page 46 Operating Pressure Signal High Altitude Information Operating pressure signal can be taken while the manifold NOTE: pressure check is taken (using two measuring devices). Or, taken after the manifold pressure measurement is complete. These units require no manifold pressure adjustments for Tee into the negative line between the gas valve and operation at altitudes up to 10,000 feet (2286 m) above pressure switch and correct to measuring device...
  • Page 47 Gas Valve Field Installed Figure 46. Manifold Pressure Measurement Negative Port Positive Port Red and Black Tubing - Black Tubing + Gas Valve Field Installed Measuring Device Figure 47. Operation Signal (Delta P) Measurement Issue 2241 Page 47 of 65...
  • Page 48: Other Unit Adjustments

    Temperature Rise Other Unit Adjustments After the furnace has been started and supply and return air temperatures have been allowed to stabilize, check the temperature rise with the unit operating at 100 percent Primary Limit The primary limit is located on the heating compartment the temperature rise within the range shown on the unit vestibule panel.
  • Page 49: Heating Sequence Of Operation

    At the end of the recognition delay and on all Heating Sequence of Operation subsequent calls for heat in the same heating cycle, the integrated control energizes the combustion air The integrated control initiates a pressure switch inducer at high speed. The control also checks the high calibration at the initial unit start-up on a call for heat.
  • Page 50: Service

    If second-stage heat is required, the thermostat combustion air inducer at 70 percent speed. The second stage heat contacts close and send a signal indoor blower motor is adjusted to a speed which to the integrated control. The integrated control either on delay is initiated.
  • Page 51 Filters Planned Service A service technician should check the following items during an annual inspection. Power to the unit must be necessary to ensure proper furnace operation. Table 3 lists Burners - Must be inspected for rust, dirt, or signs of water. Exhaust and Air Intake Pipes Vent pipe - Must be inspected for signs of water, cracked, damaged or sagging pipe, or disconnected joints.
  • Page 52: Repair Parts List

    Repair Parts List The following repair parts are available through GEA distributors. When ordering parts, include the complete furnace model number listed on the nameplate. All service must be performed by a licensed professional installer (or equivalent), service agency, or gas supplier. Cabinet Parts Heating Parts •...
  • Page 53 Code Diagnostic Codes / Status of Equipment Action Required to Clear and Recover E110 Low line voltage. Line Voltage low (Voltage tower than nameplate rating). Check power line voltage and correct. Alarm clears 5 seconds after fault recovered. E113 High line voltage. Line Voltage high (Voltage higher than nameplate rating).
  • Page 54 Code Diagnostic Codes / Status of Equipment Action Required to Clear and Recover E223 Low pressure switch failed open Check pressure(inches W.C) of low pressure switch closing on heat call. Measure operating pressure (inches w.c.). Inspect vent and combustion air inducer for correct operation and restriction.
  • Page 55 Code Diagnostic Codes / Status of Equipment Action Required to Clear and Recover E272 Check operation of low pressure to see if it is stuck recycles. Last recycle due to the pressure switch closed on heat call. Check pressure (inches w.c.) of opening high pressure switch closing on heat call.
  • Page 56 Code Diagnostic Codes / Status of Equipment Action Required to Clear and Recover E312 is lower than CFM setting. running at a reduced CFM (Cutback Mode - The variable speed motor has pre-set speed and torque limiters to protect the motor from damage caused by operating outside of design parameters (0 to 0.8"...
  • Page 57 Program Unit Capacity / Size Mode Power-Up - Number displayed by integrated control represents unit size code (furnace model and capacity). If three horizontal bars are displayed followed by continuous E203, Turn room thermostat to OFF. Furnace control in IDLE mode (No heating, cooling, or indoor fan operation) To enter Field Test...
  • Page 58 Troubleshooting: Heating Sequence of Operation IGNITION AND CALL FOR LOW FIRE WITH TWO-STAGE THERMOSTAT Safety Check Verify There Is No Main Burner Flame After Indoor blower OFF Heat OFF Delay (Low Heat Speed) Limit Combustion Air Limit De-Energize Error Code Indoor Blower Switch Inducer On...
  • Page 59 Troubleshooting: Heating Sequence of Operation (continued) CALL FOR HIGH FIRE WITH TWO-STAGE THERMOSTAT 2 Stage Thermostat 1st Call for High Fire? 2nd Stage Recognition Delay (30 Seconds) Combustion Air Inducer ON (100% Rate Speed) High Pressure Switch Increase Combustion Error Code Wait 5 Closes Within Air Inducer Speed...
  • Page 60 Troubleshooting: Heating Sequence of Operation (continued) RUN MODE (TWO-STAGE THERMOSTAT) RUN MODE (SINGLE-STAGE THERMOSTAT) FIRST OR SECOND-STAGE CALL FOR HEAT ALL INPUTS MONITORED (LIMIT, PRESSURE, ALL INPUTS MONITORED (LIMIT, PRESSURE, CALL FOR HEAT/COOL, FLAME LEVEL). CALL FOR HEAT/COOL, FLAME LEVEL). 2nd Stage Heat 2nd Stage Call for Heat...
  • Page 61 Troubleshooting: Heating Sequence of Operation (continued) IGNITION AND CALL FOR HEAT WITH SINGLE-STAGE THERMOSTAT Safety Check Verify There Is No Main Burner Flame Indoor Blower OFF After Heat OFF Delay (Low Heat Speed) Indoor Blower Limit Limit De-Energize Error Code Combustion Air Switch Closes Within 3...
  • Page 62 Troubleshooting: Cooling Sequence of Operation CALL FOR COOLING 1st Stage Cooling Request Received Energize 1st Stage Cooling Contactor (Compressor & Fan) Indoor Blower On After 2-second delay Energize Indoor Blower (Per Ramping Profile) 1st Stage 2nd Stage Cooling Request Cooling Still Active? Request? Energize 2nd Stage...
  • Page 63 Troubleshooting: Continuous Fan Sequence of Operation CONTINUOUS LOW SPEED INDOOR BLOWER SEQUENCE OF OPERATION Call for Continuous Blower Indoor Blower On (Speed Determined by Dip Switch settings) Request Maintain Indoor for Cooling Go to Call for Cooling Blower at set speed Received? Go to Call for Heat -- Two-Stage Thermostat Request...
  • Page 64 Requirements for Commonwealth of Massachusetts INSPECTION. The state or local gas inspector of the side wall, horizontally vented, gas-fueled equipment Revise NFPA-54 section 10.8.3 to add the following shall not approve the installation unless, upon requirements: For all side wall, horizontally vented, gas-fueled equipment detectors and signage installed in accordance with the installed in every dwelling, building or structure used in provisions of 248 CMR 5.08(2)(a) 1 through 4.
  • Page 65 For the Province of Ontario, Horizontal Sidewall Vent Applications Only structure is not required in direct or nondirect vent applications in the Province of Ontario. In these applications, the vent Addendum for All Provinces of Canada See below for venting for all provinces of Canada. GEA approves the following termination for use in all provinces of Canada. 12”...

Table of Contents