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Page  4

31-5000731   Rev. 0

BLO

WER PERFORMANCE DATA

Model

Motor 

Size 

(hp)

Blower 

Size

Heating

Cooling

Temp 

Rise 

Speed 

Adjustment

CFM @ 0” - 0.5” w.c.

Cooling 

Stage

Speed 

Adjustment

CFM @ 0" - 0.8" w.c.

Setting 

"A"

Setting 

"B"

Setting 

"C"

Setting 

"D"

Setting 

"A"

Setting 

"B"

Setting 

"C"

Setting 

"D"

Upflow / Horizonatl

Bottom Inlet

NF80U070V3A

1/2 HP

10 x 8

High

 

Fire 

40 - 70

+

1129

1027

990

787

2nd

 

Stage

+

1335

1215

1080

995

Norm

1026

934

900

715

Norm

1225

1105

985

920

-

923

841

810

644

-

1100

995

905

820

Low

 

Fire 

25 - 55

+

1031

926

829

747

1st 

 

Stage

+

965

865

785

735

Norm

937

842

754

679

Norm

885

795

735

690

-

843

758

679

611

-

790

755

685

650

NF80U090V4B

1 HP

11 x 9

High

 

Fire 

40 - 70

+

1646

1529

1518

1187

2nd

 

Stage

+

1755

1545

1335

1030

Norm

1496

1390

1380

1079

Norm

1600

1405

1200

940

-

1346

1251

1242

971

-

1435

1260

1060

790

Low

 

Fire 

25 - 55

+

1539

1398

1136

1096

1st 

 

Stage

+

1210

1035

890

665

Norm

1399

1271

1033

996

Norm

1090

960

810

600

-

1259

1144

930

896

-

985

850

690

525

NF80U1

10V5C

1 HP

11 x 10

High

 

Fire 

35 - 65

+

2175

1950

1935

1546

2nd

 

Stage

+

2205

1905

1705

1535

Norm

1977

1773

1759

1405

Norm

2015

1710

1560

1400

-

1779

1596

1583

1265

-

1810

1555

1395

1260

Low

 

Fire 

25 - 55

+

1977

1783

1497

1431

1st 

 

Stage

+

1560

1355

1230

1065

Norm

1797

1621

1361

1301

Norm

1425

1205

1085

955

-

1617

1459

1225

1171

-

1265

1075

960

845

Side Inlet

NF80U070V3A

1/2 HP

10 x 8

High

 

Fire 

40 - 70

+

1114

1018

979

778

2nd

 

Stage

+

1345

1218

1097

1010

Norm

1013

925

890

707

Norm

1213

1104

1003

926

-

912

833

801

636

-

1106

1013

893

820

Low

 

Fire 

25 - 55

+

1044

950

825

740

1st 

 

Stage

+

916

848

767

735

Norm

949

864

750

673

Norm

859

795

726

689

-

854

778

675

606

-

781

727

677

635

NF80U090V4B

1 HP

11 x 9

High

 

Fire 

40 - 70

+

1667

1533

1522

1183

2nd

 

Stage

+

1672

1498

1296

1006

Norm

1515

1394

1384

1075

Norm

1499

1346

1158

897

-

1364

1255

1246

968

-

1406

1210

1049

795

Low

 

Fire 

25 - 55

+

1539

1398

1136

1096

1st 

 

Stage

+

1174

1013

901

638

Norm

1399

1271

1033

996

Norm

1040

930

778

571

-

1259

1144

930

896

-

956

809

698

529

NF80U1

10V5C

1 HP

11 x 10

High

 

Fire 

35 - 65

+

2094

1925

1880

1505

2nd

 

Stage

+

2011

1857

1688

1506

Norm

1904

1750

1709

1368

Norm

1843

1687

1526

1375

-

1714

1575

1538

1231

-

1640

1503

1382

1235

Low

 

Fire 

25 - 55

+

1903

1730

1455

1375

1st 

 

Stage

+

1420

1286

1160

1019

Norm

1730

1573

1323

1250

Norm

1277

1154

1048

942

-

1557

1416

1191

1125

-

1116

1020

944

836

Содержание GE NF80UV

Страница 1: ...31 5000731 Rev 0 11 22 GEA NF80UV 80 Upflow Horizontal Two Stage Variable Speed Gas Furnace Service Manual READ CAREFULLY KEEP THESE INSTRUCTIONS...

Страница 2: ...l injury or death Electric shock hazard Can cause injury or death Before attempting to perform any service or maintenance turn the electrical power to unit OFF at disconnect switch es Unit may have mu...

Страница 3: ...SICAL AND ELECTRICAL DATA Model Input Btuh Output Btuh AFUE ICS Nominal Cooling Capacity Gas Inlet in Volts Hz Phase Max Time Delay Breaker or Fuse Nominal F L A Trans V A Approx Shipping Weight lbs U...

Страница 4: ...orm 1977 1773 1759 1405 Norm 2015 1710 1560 1400 1779 1596 1583 1265 1810 1555 1395 1260 Low Fire 25 55 1977 1783 1497 1431 1st Stage 1560 1355 1230 1065 Norm 1797 1621 1361 1301 Norm 1425 1205 1085 9...

Страница 5: ...iption Natural to LP Kits 11K48 Two Stage 0 7500 ft 11K47 Two Stage 7500 ft Return Air Base 68W61 14 5 Inch A Width 68W62 17 5 Inch B Width 68W63 21 0 Inch C Width Note For vent length and clearances...

Страница 6: ...3 8 137 Right 1 9 16 40 Left 33 838 3 1 8 79 1 15 16 49 14 356 9 16 14 3 76 Right 6 3 4 171 Left 2 FLUE OUTLET Either Side 3 OPTIONAL EXTERNAL SIDE RETURN AIR FILTER KIT Either Side 16 406 14 3 4 375...

Страница 7: ...Figure 1 Expanded View HEAT EXCHANGER CABINET COMBUSTION AIR INDUCER BLOWER ASSEMBLY BURNER BOX ACCESS PANELS COMBUSTION AIR INDUCER PRESSURE SWITCH GAS VALVE CONTROL BOX Includes two stage integrate...

Страница 8: ...ignition and ignitor durability The control provides gas ignition safety checks and indoor blower control with two stage gas heating The furnace combustion air inducer gas valve and indoor blower are...

Страница 9: ...100 CFM count the flashes and multiply by 100 to determine the actual CFM delivered for example 5 flashes x 100 500 CFM Pin Function 1 Gas Valve Second Stage 2 Second Stage Prove Switch 3 Rollout Swit...

Страница 10: ...Humidifier 120VAC Line Input 120VAC XFMR Transformer 120VAC EAC Indoor Air Accessory 120VAC Cool Cool Speed 120VAC Park 1 Dead terminal for alternate speed tap Park 2 Dead terminal for alternate spee...

Страница 11: ...e bearings MOTOR CONTROLLER J49 J48 Figure 5 GenTeq Blower Motor B3 STATOR WINDINGS OUTPUT SHAFT BEARING ROTOR Figure 6 Blower Motor Components Internal Operation Each time the controller switches a s...

Страница 12: ...e motor Jack J48 is the power plug Line voltage must be applied to J48 pins 4 and 5 in order for the motor to operate When using 120VAC pins 1 and 2 must be jumpered Jack J49 connects the unit control...

Страница 13: ...AT output from controller to motor windings O volts 325VDC One revolution O volts 325VDC O volts 325VDC WINDING 1 WINDING 2 WINDING 3 O volts 325VDC O volts 325VDC O volts 325VDC WINDING 1 WINDING 2 W...

Страница 14: ...Heat Call Figure 10 Indoor Blower Operation High Heat W2 Call Figure 11 Indoor Blower Operation Call for Fan Percentage of High Stage Cooling Figure 12 Indoor Blower Operation Single Stage Cooling Fi...

Страница 15: ...ee Figure 14 The limit is a N C SPST manual reset limit When S47 senses rollout the circuit breaks and the ignition control immediately stops ignition and closes the gas valve Rollout can be caused by...

Страница 16: ...Page 16 31 5000731 Rev 0 Gaskets Collector Box Orifice Plate Flue Transition Pressure Switch Combustion Air Inducer Manifold And Gas Valve Ignitor Sensor Rollout Switches Figure 14 Heating Components...

Страница 17: ...nd Connect Alligator Clip to Flame Sensor Lead Flame Sensor Terminal Remove Sensor Wire from Integrated Control and Connect Alligator Clip to Terminal on Control DIGITAL METER To Control Sensor Termin...

Страница 18: ...r probes in order not to damage plug Check voltage during 20 second ignitor warm up period Voltage should read 120 volts 10 If voltage reads below these values check for correct supply voltage to furn...

Страница 19: ...combustion air inducer is operating It closes a circuit to the integrated control when pressure inside the combustion air inducer decreases to a certain set point Set points vary depending on unit siz...

Страница 20: ...nducer then reinstall the mounting screws See unit Installation Instructions for more detail The combustion air pressure switch must be moved for horizontal discharge air left position IMPORTANT vent...

Страница 21: ...nd to move the switch Never use tools If the switch will not turn or if the control switch will not move by hand do not try to repair it Placing the Furnace into Operation These units are equipped wit...

Страница 22: ...lock out If the unit locks out again call the service technician to inspect the unit for blockages 10 Is pressure switch closed Obstructed flue will cause unit to shut off at pressure switch Check fl...

Страница 23: ...Table 9 for manifold pressures and Table 10 for pressure switch and gas conversion kits Capacity Gas Orifice Size 0 7500 ft 1 Orifice Size 7501 10000 ft Manifold Pressure in w g 0 4500 ft Manifold Pr...

Страница 24: ...load indicates a poor or partial ground Compare the readings to Table 11 If the readings exceed the maximum shown in Table 11 make repairs before operating the furnace 2 In addition measure the AC vol...

Страница 25: ...F listed on the unit rating plate Supply Air Return Air Supply Duct Temperature Return Duct Temperature _ Temperature Rise Figure 23 Temperature Rise External Static Pressure 1 Tap locations shown in...

Страница 26: ...ssary 8 Evaluate the heat exchanger integrity by inspecting the heat exchanger per the AHRI heat exchanger inspection procedure This procedure can be viewed at www ahrinet org 9 Ensure sufficient comb...

Страница 27: ...acuum cleaner with a soft brush attachment over the face of burners Visually inspect inside the burners and crossovers for any blockage caused by foreign matter Remove any blockage Figure 26 shows bur...

Страница 28: ...Collector Box Orifice Plate Flue Transition Pressure Switch Combustion Air Inducer Manifold And Gas Valve Retention Rings Cross Over Ignitor Flame Sensor Rollout Switches Figure 26 Burner Combustion A...

Страница 29: ...TRAL TAP TO NEUTRAL TERMINAL ON IGNITION CONTROL 5 DO NOT CONNECT C COMMON CONNECTION BETWEEN INDOOR UNIT AND THERMOSTAT EXCEPT WHEN REQUIRED BY THE INDOOR THERMOSTAT REFER TO THE THERMOSTAT INSTALLAT...

Страница 30: ...Page 30 31 5000731 Rev 0 Figure 28 Wiring Schematic...

Страница 31: ...ains energized until the limits are closed Fan On When the thermostat is set for continuous fan operation and there is no demand for heating or cooling a call for fan closes the R to G circuit and the...

Страница 32: ...Printed in the U S A All specifications and illustrations subject to change without notice and without incurring obligations...

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