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507028-05G / 31-5000694

Issue 2128

Page 1 of 66

(P) 507028-05G

*P507028-05G*

GE Appliances

A Haier Company

Appliance Park

Louisville, KY 40225

This manual must be left with the homeowner for future reference.

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.

Table of Contents

Gas Furnace ................................................................4

Shipping and Packing List ...........................................4

Safety Information .......................................................4

General ........................................................................6

Installation ...................................................................6

Filters .........................................................................10

Duct System ..............................................................10

Venting Practices .......................................................12

Gas Piping .................................................................26

Electrical ....................................................................29

Blower Performance ..................................................39

Gas Valve Operation .................................................44

Unit Start-Up ..............................................................44

Other Unit Adjustments..............................................48

Heating Sequence of Operation ................................49

Service.......................................................................50

Integrated Control Diagnostic Codes.........................52

Repair Parts List ........................................................57

INSTALLATION INSTRUCTIONS

NF97UM

Warm Air Gas Furnace

Upflow/Horizontal Left/Right

Air Discharge Direct Vent

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.

WARNING

As with any mechanical equipment, personal injury can

result from contact with sharp sheet metal edges. Be

careful when you handle this equipment.

CAUTION

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.

NOTICE

Содержание GE NF97UM

Страница 1: ...justments 48 Heating Sequence of Operation 49 Service 50 Integrated Control Diagnostic Codes 52 Repair Parts List 57 INSTALLATION INSTRUCTIONS NF97UM Warm Air Gas Furnace Upflow Horizontal Left Right Air Discharge Direct Vent 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 l...

Страница 2: ...Either Side 1Bottom Return Air Opening ELECTRICAL INLET Either Side SIDE VIEW 27 3 4 705 19 7 16 494 23 1 2 597 1 1 2 38 6 1 2 165 Either Side 1 15 16 49 14 356 9 16 14 12 5 8 321 Either Side 1 3 1 4 83 1 1 2 38 Front Panel 2 51 Either Side CONDENSATE TRAP CONNECTION Either Side Flue Condensate Trap Assembly Furnished for external field installation on either side of unit See installation instruct...

Страница 3: ...ER ACCESS PANEL CONTROL BOX includes variable capacity integrated control transformer circuit breaker and door switch VARIABLE SPEED BLOWER MOTOR BAG ASSEMBLIES shipping location COLD END HEADER BOX PRESSURE SWITCHES VARIABLE SPEED COMBUSTION AIR INDUCER PRIMARY LIMIT SHIPPING BLOCK 135 UNITS ONLY Parts Arrangement ...

Страница 4: ...stalled in all LP applications DANGER 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 WARNING As with any mechanical equipment personal injury can result from contact with sharp sheet metal edge...

Страница 5: ...ational Fire Protection Association 1 Battery March Park Quincy MA 02269 In Canada all electrical wiring and grounding for the unit must be installed according to the current regulations of the Canadian Electrical Code Part I CSA Standard C22 1 and or local codes NOTE This furnace is designed for a minimum continuous return air temperature of 60 F 16 C or an intermittent operation down to 55 F 13 ...

Страница 6: ...ion When the furnace is installed in an attic or other insulated space keep insulation away from the furnace When the furnace is installed in an unconditioned space consider provisions required to prevent freezing of condensate drain system NOTE The Commonwealth of Massachusetts stipulates these additional requirements Gas furnaces shall be installed by a licensed plumber or fitter only The gas co...

Страница 7: ...return air and a condensate trap installed on the same side of the cabinet trap can be installed remotely within 5 feet require either a return air base or field fabricated transition to accommodate an optional IAQ accessory taller than 14 5 See Figure 6 Return Air Upflow Units Return air can be brought in through the bottom or either side of the furnace installed in an upflow application If the f...

Страница 8: ...gure 7 Shipping Bolt Removal Units with 1 2 hp blower motor are equipped with three flexible legs and one rigid leg The rigid leg is equipped with a shipping bolt and a flat white plastic washer rather than the rubber mounting grommet used with a flexible mounting leg See Figure 8 The bolt and washer must be removed before the furnace is placed into operation After the bolt and washer have been re...

Страница 9: ...of rafters or ceiling joists When straps are used to suspend the unit in this way support must be provided for both the ends The straps must not interfere with the plenum or exhaust piping installation Cooling coils and supply and return air plenums must be supported separately NOTE When the furnace is installed on a platform in a crawlspace it must be elevated enough to avoid water damage and to ...

Страница 10: ...m a room where this furnace or any other gas fueled appliance i e water heater or carbon monoxide producing device i e wood fireplace is installed When return air is drawn from a room a negative pressure is created in the room If a gas appliance is operating in a room with negative pressure the flue products can be pulled back down the vent pipe and into the room This reverse flow of the flue gas ...

Страница 11: ...g may be used for vent pipe hangers Uniformly apply a liberal coat of PVC primer for PVC Canadian Applications Only Pipe fittings primer and solvent cement used to vent exhaust this appliance must be certified to ULCS636 and supplied by a single manufacturer as part of an approved vent exhaust system In addition the first three feet of vent pipe from the furnace flue collar must be accessible for ...

Страница 12: ...e exhaust into an existing stack or stack that also serves another gas appliance If vertical discharge through an existing unused stack is required insert PVC pipe inside the stack until the end is even with the top or outlet end of the metal stack CAUTION The exhaust vent pipe operates under positive pressure and must be completely sealed to prevent leakage of combustion products into the living ...

Страница 13: ...e 44W92 Concentric kit is provided with a 1 1 2 accelerator which must be installed on the exhaust outlet when this kit is used with the 45 000 and 70 000 furnaces When using 1 1 2 in piping the pipe must be transitioned to 2 in pipe when used with the Concentric Kit Table 3 NOTE The exhaust collar on all models is sized to accommodate 2 Schedule 40 vent pipe In horizontal applications transition ...

Страница 14: ... accumulation At vent termination care must be taken to maintain protective coatings over building materials prolonged exposure to exhaust condensate can destroy protective coatings It is recommended that the exhaust outlet not be located within 6 feet 1 8m of a condensing unit because the condensate can damage the painted coating NOTE See Table 5 for maximum allowed exhaust pipe length without in...

Страница 15: ...rom larger to smaller pipe in horizontal runs of exhaust pipe Exhaust 6 Min Figure 18 SIDE VIEW 2 2 2 or TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL RIGHT HAND DISCHARGE SHOWN 3 2 45 MAX 45 MAX DO NOT transition from smaller to larger pipe in horizontal runs of exhaust pipe EXHAUST 12 max 2 2 When transitioning up in pipe size use the shortest length of 2 PVC pipe possible NOTE Exhau...

Страница 16: ...in 12 10 22 19 30 27 N A N A 2 1 2 in 7 N A 15 N A 22 N A N A N A 3 in N A N A 10 10 16 16 18 18 1 Refer to 99 Minimum Design Temperature table provided in the current edition of the ASHRAE Fundamentals Handbook 2 Poly Propylene vent pipe PP by Duravent and Centrotherm 3 Vent length in table is equivalent length Each elbow is equivalent to 5ft of straight pipe and should be included when measuring...

Страница 17: ...79 8 51 29 100 53 n a 122 103 78 74 9 46 24 95 48 117 98 73 69 10 41 19 90 43 112 93 68 64 Standard Termination at Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model Model 070 090 110 135 070 090 110 135 070 090 110 135 070 090 110 135 1 12 n a n a n a 61 39 n a n a 110 63 n a n a 132 113 88 84 2 7 56 34 105 58 127 108 83 79 3 n a 51 29 100 53 ...

Страница 18: ...4 79 70 8 43 27 90 49 106 99 74 65 9 38 22 85 44 101 94 69 60 10 33 17 80 39 96 89 64 55 Concentric Termination at Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model Model 070 090 110 135 070 090 110 135 070 090 110 135 070 090 110 135 1 10 n a n a n a 53 37 n a n a 100 59 n a n a 116 109 84 75 2 n a 48 32 95 54 111 104 79 70 3 43 27 90 49 106 ...

Страница 19: ... 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 6 inches 152mm for appliances 10 000 Btuh 3kw 12 inches 305mm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 3 feet 9m above if within 10 feet 3m horizontally 6 feet 1 8m 7 feet 2 1m 12 inches 305mm 1 In accordance with the current ANSI Z223 1 NFPA 54 Natur...

Страница 20: ... above grade or average snow accumulation B Horizontal separation between intake and exhaust C Minimum from end of exhaust to inlet of intake D Exhaust pipe length E Wall support distance from top of each pipe intake exhaust 12 305 mm Min 12 305 mm Min 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 16 405 mm Max 6 152 mm Max 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 20 508 mm Ma...

Страница 21: ...hould terminate straight down using two 90 elbows Figure 22 4 Exhaust piping must terminate straight out or up as shown A reducer may be required on the exhaust piping at the point where it exits the structure to improve the velocity of exhaust away from the intake piping See Table 7 Figure 22 Direct Vent Roof Termination Kit 15F75 or 44J41 UNCONDITIONED ATTIC SPACE SIZE PER EXHAUST PIPE TERMINATI...

Страница 22: ... Figure 27 Direct Vent Concentric Wall Termination 71M80 69M29 OR 60L46 US 41W92 or 41W93 Canada 12 305mm Min above grade or average snow accumulation INTAKE AIR INTAKE AIR INTAKE AIR OUTSIDE WALL GRADE CLAMP Not Furnished FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION EXHAUST VENT 1 1 2 38mm accelerator provided on 71M80 44W92 kits for 045 and 070 models E...

Страница 23: ...d evaporator coil using a separate drain If necessary the condensate line from the furnace and evaporator coil can drain together See Figure 35 and Figure 36 Upflow furnace Figure 31 In upflow furnace applications the field provided vent must be minimum 1 to a maximum 2 length above the condensate drain outlet connection Any length above 2 may result in a flooded heat exchanger if the combined pri...

Страница 24: ...C Pipe Not Furnished Drain Assembly for 3 4 inch Drain Pipe Condensate Drain Connection In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connection OptionalDrainPipingFromTrap DrainTrapAssembly Furnished DrainTrap Assembly with 1 2 inch Piping DrainTrap Assembly with 3 4 inch Piping 1 2 inch 3 4 inch 1 25 mm Min 2 50 mm Max Abo...

Страница 25: ...on Evaporator drain line required Trap at coil is optional Figure 34 Furnace with Evaporator Coil Using a Separate Drain 1 min to 2 Max above condensate drain connection Condensate Drain Connection Evaporator drain line required Trap at coil is optional Field Provided Vent Figure 35 Furnace with Evaporator Coil Using a Common Drain Unit shown in horizontal left hand discharge position Condensate D...

Страница 26: ...eys or gas vents dumb waiters or elevator shafts Center gas line through piping hole Gas line should not touch side of unit See Figure 39 and Figure 40 4 Piping should be sloped 1 4 per 15 feet 6 mm per 5 6 m upward toward the gas meter from the furnace The piping must be supported at proper intervals every 8 to 10 feet 2 44 to 3 05 m using suitable hangers or straps Install a drip leg in vertical...

Страница 27: ...69 580 16 42 530 15 01 490 13 87 460 13 03 430 12 18 400 11 33 1 1 2 38 1 1 610 40 894 2100 59 46 460 41 34 1180 33 41 990 28 03 900 25 48 810 22 94 750 21 24 690 19 54 650 18 41 620 17 56 2 50 8 2 067 52 502 3950 111 85 2750 77 87 2200 62 30 1900 53 80 1680 47 57 1520 43 04 1400 39 64 1300 36 81 1220 34 55 1150 32 56 2 1 2 63 5 2 469 67 713 6300 178 39 4350 123 17 3520 99 67 3000 84 95 2650 75 04...

Страница 28: ... FIELD PROVIDED AND INSTALLED GROUND JOINT UNION DRIP LEG MANUAL MAIN SHUT OFF VALVE Upflow Application Right Side Piping Alternate Gas Valve In LP Propane applications a 4 BIP nipple must be installed to allow clearance for the low inlet pressure switch GROUND JOINT UNION Upflow Application Left Side Piping Standard DRIP LEG MANUAL MAIN SHUT OFF VALVE AUTOMATIC GAS VALVE with manual shut off valv...

Страница 29: ...nnected to the common venting system Turn ON any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers 4 Follow the lighting instructions Turn ON the appliance that is being inspected Adjust the thermostat so that the appliance operates continuously 5 After the main burner has operated for 5 minutes ...

Страница 30: ... provided on the furnace integrated control Any humidifier or other 120V accessory rated up to one amp can be connected to this terminal with the neutral leg of the circuit being connected to one of the provided neutral terminals See Figure 44 for location of terminal This terminal is energized in the heating mode when the indoor blower is operating 9 One 24V H terminal is provided on the furnace ...

Страница 31: ...d Stage Heat On Delay If a single stage thermostat is used the integrated control can be used to energize second stage heat after either 7 minutes or 12 minutes of first stage heat operation See Table 12 Switches 4 and 5 Blower Off Delay The blower On delay of 30 seconds is not adjustable The blower Off delay time that the blower operates after the heating demand has been satisfied can be adjusted...

Страница 32: ...ion in dual fuel applications Ramping Option Switch 12 Switch 13 A factory Off Off B On Off C Off On D On On Table 15 Cooling Mode Blower Speed Ramping Ramping Option A Factory Selection Motor runs at 50 for 30 seconds Motor then runs at 82 for approximately 7 1 2 minutes If demand has not been satisfied after 7 1 2 minutes motor runs at 100 until demand is satisfied Once demand is met motor runs ...

Страница 33: ... the menu have been displayed the menu resumes from the beginning until the button is released Error Code Recall Mode 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 time while c is flashing to confirm command to delete codes Press the button until a solid is displayed to exit the Erro...

Страница 34: ... Page 34 of 66 24V THERMOSTAT CONNECTIONS DH TERMINAL NOT USED DISCHARGE AND OUTDOOR AIR TERMINALS ARE NOT USED 070 3B 090 3C 090 4C 090 5C 110 5C 135 5D 070 3B 090 3C 090 4C 090 5C 110 5C 135 5D Figure 43 Typical Field Wiring Diagram ...

Страница 35: ...OSTIC PUSH BUTTON FACTORY TEST HEADER PINS FACTORY USE ONLY TB83 OUTDOOR NOT USED TB84 INDOOR NOT USED HUM 120 VAC OUTPUT TO HUMIDIFIER XMFR 120 VAC OUTPUT TO TRANSFORMER LI 120 VAC INPUT TO CONTROL CIRC 120 VAC OUTPUT TO CIRCULATING BLOWER EAC 120 VAC OUTPUT TO ELECTRICAL AIR CLEANER NEUTRALS 120 VAC NEUTRAL W915 Y1 TO Y2 W951 R TO O W914 R TO DS THERMOSTAT CONNECTIONS TB1 DS DEHUMIDIFICATION SIG...

Страница 36: ...ot required on all units H 1 Heat 2 Cool NOTE Use DIP switch 3 to set sceond stage heat ON delay OFF 7 minutes ON 12 minutes ON Cut Intact Intact T STAT FURNACE TERM STRIP OUTDOOR UNIT Not required on all units H 1 Heat 2 Cool with t stat with dehumidification mode NOTE Use DIP switch 3 to set sceond stage heat ON delay OFF 7 minutes ON 12 minutes ON Cut Cut Intact T STAT FURNACE TERM STRIP OUTDOO...

Страница 37: ...STAT FURNACE TERM STRIP OUTDOOR UNIT Not required on all units H 2 Heat 2 Cool with t stat with dehumidification mode OFF Cut Cut Intact T STAT FURNACE TERM STRIP OUTDOOR UNIT o Not required on all units H 2 Heat 1 Cool OFF Intact Intact Intact T STAT FURNACE TERM STRIP OUTDOOR UNIT Not required on all units H NOTE Do NOT make a wire connection between the room thermostat L terminal and the L term...

Страница 38: ...ble of 2 stage gas heat control OFF Intact Intact Cut T STAT FURNACE TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor H Dual Fuel Two Stage Heat Pump Thermostat w dual fuel capabilities Capable of 2 stage gas heat control OFF Cut Intact Cut FURNACE TERM STRIP HEAT PUMP out blue 67M41 H L Y2 D B L Y2 T T outdoor sensor T STAT Y2 H NOTE Do NOT make a wire connection between the room t...

Страница 39: ...209 Default Heat CFM 660 737 814 891 968 1045 1122 Decrease 7 5 Heat CFM 616 687 757 828 899 970 1041 Decrease 15 Heat CFM 572 637 701 788 830 895 959 COOLING BLOWER PERFORMANCE Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High Default Low Medium Low Medium High Default Increase 10 Cool CFM 625 710 830 950 875 10...

Страница 40: ...eat CFM 716 836 955 1075 1195 1314 1434 Decrease 7 5 Heat CFM 652 767 882 997 1112 1227 1342 Decrease 15 Heat CFM 589 699 809 919 1029 1139 1249 COOLING BLOWER PERFORMANCE Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High Default Low Medium Low Medium High Default Increase 10 Cool CFM 840 1005 1155 1315 1165 1375...

Страница 41: ...789 951 1112 1274 1436 1597 1759 Decrease 7 5 Heat CFM 731 883 1035 1187 1339 1491 1644 Decrease 15 Heat CFM 673 816 958 1101 1243 1386 1528 COOLING BLOWER PERFORMANCE Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High Default Low Medium Low Medium High Default Increase 10 Cool CFM 937 1064 1247 1407 1312 1560 174...

Страница 42: ...ation 1 On On On Acceptable 24 VAC High 100 Thermostat energizes Y1 and de energizes D on a call for de humidification Dehumidification Call 2 On On On Demand 0 VAC High 70 PRECISION MODE operates independent of a Y1 thermostat demand Normal Operation 1 On On On Acceptable 24 VAC High 100 Dehumidification mode begins when humidity is greater than set point Maximum overcool from cooling setpoint is...

Страница 43: ... Demand 0 VAC High 70 Thermostat will keep outdoor unit energized after cooling temperature setpoint has been reached in order to maintain room humidity setpoint Maximum overcool from cooling setpoint is 2 F ROOM THERMOSTAT CALLS FOR FIRST AND SECOND STAGE COOLING BASIC MODE only active on a Y1 thermostat demand Normal Operation 1 On On On On Acceptable 24 VAC High 100 Thermostat energizes 2nd Sta...

Страница 44: ...utes 6 Adjust the thermostat to deactivate the heating demand and again wait for the combustion air inducer to stop At this point the trap should be primed with sufficient water to ensure proper condensate drain operation BEFORE PLACING THE UNIT INTO OPERATION Smell all around the furnace area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the fl...

Страница 45: ...4 110 33 66 82 164 135 27 54 68 136 Natural 1000 btu cu ft LP 2500 btu cu ft Table 23 Gas Meter Clocking Chart Furnace should operate at least 5 minutes before checking gas flow Determine time in seconds for two revolutions of gas through the meter Two revolutions assures a more accurate time Divide by two and compare to time in Table 23 If manifold pressure matches Table 26 and rate is incorrect ...

Страница 46: ...essures at all altitudes The combustion air pressure switch is factory set and requires no adjustment Proper Combustion Furnace should operate a minimum of 15 minutes with correct manifold pressure and gas flow rate before checking combustion Take combustion sample beyond the flue outlet and compare to Table 24 and Table 25 The maximum carbon monoxide reading should not exceed 100 ppm Model CO2 fo...

Страница 47: ...8 Page 47 of 66 Field Installed Gas Valve Figure 46 Manifold Pressure Measurement Figure 47 Operation Signal Delta P Measurement Negative Port Positive Port Gas Valve Measuring Device Field Installed Black Tubing Red and Black Tubing ...

Страница 48: ...tion Thermostat Heat Anticipation Set the heat anticipator setting if adjustable according to the amp draw listed on the wiring diagram that is attached to the unit Electronic Ignition The integrated control has a feature that serves as an automatic reset device for ignition control lockout caused by ignition failure This type of lockout is usually due to low gas line pressure After one hour of co...

Страница 49: ... When the demand for high fire second stage heat is satisfied the gas valve is de energized and the field selected indoor blower off delay begins The combustion air inducer begins a 20 second post purge period 8 When the combustion air post purge period is complete the inducer is de energized The indoor blower is deenergized at the end of the off delay B Heating Sequence Control Thermostat Selecti...

Страница 50: ...ge on delay is initiated 6 If the heating demand continues beyond the third stage ON delay the integrated control energizes the inducer at high speed The indoor blower motor is adjusted to a speed appropriate for the target rate 7 When the thermostat heating demand is satisfied the gas valve is de energized and the combustion air inducer begins a 20 second post purge The field selected indoor blow...

Страница 51: ... through the hole in the blower deck 16 Remove the primary limit from the vestibule panel 17 Remove two screws from the front cabinet flange at the blower deck Spread cabinet sides slightly to allow clearance for removal of heat exchanger 18 Remove the screws along vestibule sides and bottom that secure the vestibule panel and heat exchanger assembly to cabinet Remove the two screws from the blowe...

Страница 52: ...at exchanger is clean and dry and that furnace is operating properly 15 Replace heating compartment access panel Planned Service A service technician should check the following items during an annual inspection Power to the unit must be shut off for the service technician s safety Burners Must be inspected for rust dirt or signs of water Vent pipe Must be inspected for signs of water cracked damag...

Страница 53: ...voltage and frequency problems System resumes normal operation 5 seconds after fault recovered E115 Low 24V Control will restart if the error recovers 24 Volt Power high Range is 18 to 30 Volts Check and correct voltage Check for additional power robbing equipment connected to system May require installation of larger VA transformer to be installed in furnace air handler Clears after fault recover...

Страница 54: ...ure inches w c Inspect vent and combustion air inducer for correct operation and restriction Resumes normal operation after fault is cleared E224 Low pressure switch failed closed Refer to troubleshooting 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 Resumes n...

Страница 55: ...eeded maximum number of recycles Last recycle due to the pressure switch opening Check operation of low pressure to see if it is stuck closed on heat call Check pressure inches w c of high pressure switch closing on heat call Measure operating pressure Inspect vent and combustion air inducer for correct operation and restriction Clears when heat call finishes successfully E273 Soft lockout Exceede...

Страница 56: ...o restricted airflow Reduce firing rate every 60 seconds to match available CFM Check filter and duct system To clear replace filter if needed or repair add duct 2 stage controls will reduce firing rate to 1 stage Clears when heat call finished successfully E312 Restricted airflow in cooling or continuous fan mode is lower than CFM setting Warning Only Restricted airflow Indoor blower is running a...

Страница 57: ... service agency or gas supplier Cabinet Parts Outer Access Panel Blower Access Panel Top Cap Control Panel Parts Transformer Integrated Control Board Door Interlock Switch Circuit Breaker Blower Parts Blower Wheel Motor Motor Mounting Frame Blower Housing Cut Off Plate Power Choke 1 HP only Heating Parts Flame Sensor Heat Exchanger Assembly Gas Manifold Combustion Air Inducer Gas Valve Main Burner...

Страница 58: ... mode without storing unit size code If this happens programming function must be repeated Verify that the selected unit size code is correct and stored in non volatile memory by cycling the 24 volt power to the furnace control At 24 volt power up of the furnace control the 7 segment LED will display a unit size code If three horizontal bars display the board does not recognize the unit size code ...

Страница 59: ...s 5th Unsuccessful Trial Wait For Ignition Stabilization Delay Post Purge 20Seconds Soft Lockout Error Code Flashes YES NO NO YES Call For Heat Ends NO YES YES NO C A L L F O R 1 S T S T A G E H E A T 3A 2 1 1 OR Call For Heat NO 4 Calibrations Attempted Calibration Successful Wait 5 minutes NO NO Soft Lockout Error Code Flashes YES YES YES 2 1 1 2 Set Target Firing Rate Based on Thermostat Signal...

Страница 60: ...ode Flashes NO YES Wait 5 Minutes 3A 2 1 2 1 System will always light at 70 even if 2nd stage call for heat is in place If the high pressure switch does not close within 5 attempts the system will operate at low fire for the remainder of the call for heat at request Combustion Air Inducer ON 100 Rate Speed Increase Combustion Air Inducer Speed if Not at 100 Rate Speed Adjust Indoor Blower to Appro...

Страница 61: ...o appropiate speed Combustion Air Inducer OFF after 20 Second Post Purge Indoor Blower OFF after OFF Delay RUN MODE SINGLE STAGE THERMOSTAT ALL INPUTS MONITORED LIMIT PRESSURE CALL FOR HEAT COOL FLAME LEVEL RUN MODE TWO STAGE THERMOSTAT FIRST OR SECOND STAGE CALL FOR HEAT ALL INPUTS MONITORED LIMIT PRESSURE CALL FOR HEAT COOL FLAME LEVEL Wait for Call Two Stage Thermostat Wait for Call Single Stag...

Страница 62: ...Flashes YES NO NO YES Call For Heat Ends NO YES YES NO C A L L F O R H E A T 3B 1 4 Move to Mid Firing Rate and High Firing Rate after 2nd and 3rd Stage Delays based on DIP Switch selections Pressure Switch Calibration Call For Heat NO 4 Calibrations Attempted Calibration Successful Wait 5 minutes NO NO Soft Lockout Error Code Flashes YES YES YES 1 2 1 2 1 Set to Low Firing Rate Indoor Blower OFF ...

Страница 63: ...r Compressor Fan Energize and Low Cooling mode High Cooling mode High Cooling mode Per Ramping Profile NO NO YES NO 5 1 2 1 2 2 2 1 Indoor Blower On After 2 second delay Energize Indoor Blower Per Ramping Profile Energize Indoor Blower Maintain Indoor Blower Maintain Indoor Blower at De Energize Indoor Blower 2nd stage cooling operation requires a 2 stage thermostat a 2 stage cooling system and on...

Страница 64: ...ll for Fan Removed YES NO YES Go to Call for Cooling 6 1 4 5 1 Call for Continuous Blower Indoor Blower On Maintain Indoor Blower at set speed Maintain Indoor Blower at set speed OR Maintain Indoor Blower at set speed Indoor Blower Per Indoor blower low cooling mode and high cooling mode have specific ON OFF and speed ramping profiles The specific profile is selected using the dip switches on the ...

Страница 65: ...minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall n...

Страница 66: ...for venting for all provinces of Canada GEA approves the following termination for use in all provinces of Canada C 12 D B A 2 51MM Vent Pipe 3 76MM Vent Pipe 12 305 mm Min 12 305 mm Min 6 152 mm Min 24 610 mm Max 6 152 mm Max 6 152 mm Min 24 610 mm Max 6 152 mm Max A Clearance above grade or average snow accumulation B Horizontal separation between intake and exhaust C Exhaust pipe length D Wall ...

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