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Page 8

BLOWER DATA Cont.

G60UH−60C−110 

with 3/4 hp

 PERFORMANCE − Single Side Return Air − Air volumes in bold require field fabricated transi-

tion to accommodate 20 x 25 x 1 in. (508 x 635 x25 mm) cleanable air filter in order to maintain proper air velocity across
the filter.

External Static

Air Volume / Watts at Various Blower Speeds

External Static

Pressure

High

Medium−High

Medium−Low

Low

in. w.g.

Pa

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

0.00

0

2395

1130

1230

2260

1065

1085

2015

950

920

1730

815

750

0.05

12

2365

1115

1220

2230

1050

1070

1985

935

905

1720

810

745

0.10

25

2330

1100

1205

2200

1040

1060

1960

925

890

1705

805

750

0.15

37

2285

1080

1190

2170

1025

1045

1030

485

880

1695

800

740

0.20

50

2245

1060

1170

2135

1010

1030

1905

900

870

1675

790

735

0.25

62

2200

1040

1160

2100

990

1020

1890

890

860

1665

785

730

0.30

75

2170

1025

1145

2070

980

1005

1870

880

850

1655

780

720

0.40

100

2085

985

1110

1990

940

975

1825

860

835

1610

760

705

0.50

125

1980

935

1075

1910

900

945

1755

830

810

1555

735

690

0.60

150

1890

890

1045

1835

865

915

1670

790

780

1515

715

680

0.70

175

1800

850

1020

1725

815

885

1615

760

770

1445

685

655

0.80

200

1700

805

995

1645

775

855

1525

720

745

1380

650

645

0.90

225

1590

750

980

1520

720

820

1410

665

710

1300

615

625

NOTE − All air data is measured external to unit with 1 in. (25 mm) cleanable filter (not furnished − field provided) in place. Also see Filter Air Resistance table.

G60UH−60D−135 

with 3/4 hp

 PERFORMANCE − Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Re-

turn Air from Both Sides or Return Air from Bottom and One Side.

External Static

Air Volume / Watts at Various Blower Speeds

External Static

Pressure

High

Medium−High

Medium−Low

Low

in. w.g.

Pa

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

0.00

0

2465

1165

1205

2325

1100

1060

2155

1015

930

1895

895

780

0.05

12

2430

1145

1195

2295

1085

1050

2125

1000

920

1875

885

770

0.10

25

2395

1130

1180

2265

1070

1040

2095

990

910

1855

875

765

0.15

37

2350

1110

1165

2230

1050

1025

2070

975

900

1830

865

755

0.20

50

2310

1090

1150

2195

1035

1010

2045

965

890

1805

850

745

0.25

62

2265

1070

1135

2155

1015

995

2010

950

875

1785

840

735

0.30

75

2220

1050

1120

2115

1000

980

1975

930

865

1765

830

730

0.40

100

2120

1000

1080

2035

960

950

1915

905

845

1715

810

720

0.50

125

2050

970

1055

1955

925

925

1830

865

815

1645

775

700

0.60

150

1930

910

1015

1860

880

895

1745

825

795

1585

745

680

0.70

175

1835

865

985

1775

840

870

1655

780

770

1530

720

670

0.80

200

1720

810

955

1645

775

830

1560

735

745

1445

685

650

0.90

225

1595

755

925

1535

725

800

1455

685

720

1310

620

620

NOTE − All air data is measured external to unit with 1 in. (25 mm) cleanable filter (not furnished − field provided) in place. Also see Filter Air Resistance table.

G60UH−60D−135 

with 3/4 hp

 PERFORMANCE − Single Side Return Air − Air volumes in bold require field fabricated transi-

tion to accommodate 20 x 25 x 1 in. (508 x 635 x25 mm) cleanable air filter in order to maintain proper air velocity across
the filter.

External Static

Air Volume / Watts at Various Blower Speeds

External Static

Pressure

High

Medium−High

Medium−Low

Low

in. w.g.

Pa

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

cfm

L/s

Watts

0.00

0

2350

1110

1180

2225

1050

1035

2055

970

905

1855

875

775

0.05

12

2310

1090

1170

2195

1035

1025

2035

960

895

1835

865

765

0.10

25

2275

1075

1155

2165

1020

1010

2010

950

885

1815

855

760

0.15

37

2235

1055

1140

2130

1005

1000

1980

935

875

1795

845

755

0.20

50

2195

1035

1130

2100

990

985

1945

920

865

1775

835

750

0.25

62

2155

1020

1115

2055

970

970

1915

905

855

1750

825

740

0.30

75

2115

1000

1100

2010

950

950

1885

890

845

1725

815

735

0.40

100

2010

950

1055

1940

915

930

1830

865

830

1665

785

720

0.50

125

1930

910

1035

1860

880

905

1745

825

805

1600

755

705

0.60

150

1830

865

1005

1770

835

880

1655

780

775

1530

720

685

0.70

175

1735

820

985

1655

780

845

1595

755

765

1480

700

675

0.80

200

1645

775

955

1545

730

815

1480

700

735

1375

650

650

0.90

225

1515

715

925

1435

675

785

1385

655

710

1290

610

630

NOTE − All air data is measured external to unit with 1 in. (25 mm) cleanable filter (not furnished − field provided) in place. Also see Filter Air Resistance table.

Summary of Contents for G60UHX Series

Page 1: ...tion only and do not supersede or replace local or state codes In the absence of local or state codes the guidelines and procedures outlined in this manual except where noted are recommendations only...

Page 2: ...A 2F C33 38A 2F Horizontal CH33 18A 2F CH33 24 30A 2F CH33 36A 2F Electrical characteristics 120 volts 60 hertz 1 phase less than 12 amps OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA Air Filter and Rack...

Page 3: ...tal CH33 36B 2F CH33 42B 2F CH33 44 48B 2F CH33 36C 2F CH33 48C 2F CH33 50 60C 2F Electrical characteristics 120 volts 60 hertz 1 phase less than 12 amps OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA Air...

Page 4: ...f filters Horizontal end 87L97 1 20 x 25 x 1 in 508 x 635 x 25 mm 87L97 1 20 x 25 x 1 in 508 x 635 x 25 mm 87L98 1 25 x 25 x 1 in 635 x 635 x 25 mm Side Return Single 44J22 or Ten Pack 66K63 1 16 x 25...

Page 5: ...010 475 400 860 405 350 675 320 270 0 50 125 975 460 390 840 395 340 660 310 265 0 60 150 940 445 375 805 380 325 640 300 255 0 70 175 890 420 360 755 355 305 605 285 240 0 80 200 830 390 340 700 330...

Page 6: ...535 1070 505 430 910 430 350 0 20 50 1490 705 670 1295 610 525 1065 505 420 900 425 340 0 25 62 1465 690 655 1280 605 510 1060 500 415 890 420 335 0 30 75 1440 680 645 1260 595 495 1050 495 405 880 4...

Page 7: ...5 1150 545 520 0 30 75 1820 860 765 1580 745 675 1330 630 590 1145 540 515 0 40 100 1740 820 725 1530 720 635 1320 625 560 1140 540 490 0 50 125 1665 785 695 1475 695 600 1285 605 525 1120 530 470 0 6...

Page 8: ...15 37 2350 1110 1165 2230 1050 1025 2070 975 900 1830 865 755 0 20 50 2310 1090 1150 2195 1035 1010 2045 965 890 1805 850 745 0 25 62 2265 1070 1135 2155 1015 995 2010 950 875 1785 840 735 0 30 75 22...

Page 9: ...5 2330 1100 1274 2150 1015 961 1900 895 815 1635 770 677 20 50 2255 1065 1234 2095 990 930 1885 890 794 1625 765 664 30 75 2190 1035 1207 2035 960 902 1855 875 769 1620 765 651 40 100 2115 1000 1179 1...

Page 10: ...E HIGH ALTITUDE MANIFOLD PRESSURE INFORMATION Altitude Manifold Pressure t ll ltit d Model Input Gas 0 4500 ft 0 1372 m 4 501 7500 ft 1373 2286 m 7501 10 000 ft 2286 3048 m at all altitudes Input Size...

Page 11: ...Circuit Breaker Gasket Flue Box Gasket Limit Shield Secondary Limit s NOx Units Only Air Deflector G60UH 60C 110 Units Only Blower Motor Capacitor Flame Sensor Gas Valve Burners Ignitor Flame Rollout...

Page 12: ...R CB8 PRESS TO RESET WARNING Shock hazard Disconnect power before servicing Integrated Control Board is not field repairable If control is inoperable simply replace entire control Can cause injury or...

Page 13: ...Fan off Delay The fan on time of 45 seconds is not adjustable Fan off time time that the blower operates after the heat demand has been satis fied can be adjusted by flipping the dip switches 1 and 2...

Page 14: ...sformer LINE Line PARK For Unused Leads COOL Cooling Speed EAC Electronic Air Cleaner HI HEAT HIigh Heat Speed LO HEAT Low Heat Low Cool and Continuous Fan Speed TABLE 4 Integrated Control Board 5 Pin...

Page 15: ...to board OFF ON Circuit board failure or control wired incorrectly Check 24 and 115 volts to board FAST FLASH SLOW FLASH Main power polarity reversed Switch line and neutral SLOW FLASH FAST FLASH Low...

Page 16: ...ICROAMPS DROP OUT SIGNAL 0 16 MICROAMPS 5 16 7 Ignitor The SureLight ignitor is made of durable silicon nitride Ig nitor longevity is enhanced by controlling voltage to the ig nitor The board finds th...

Page 17: ...sket and combustion air inducer then reinstall the mounting screws See figure 8 Use the provided wire tie to bundle the pressure switch wires with the inducer motor power leads Route the wires away fr...

Page 18: ...ustment screw is located on the valve LPG change over kit s are available from Lennox Kits include burner orifices and a gas valve regulator conversion kit 13 Combustion Air Inducer Prove Switch S18 G...

Page 19: ...Turn knob on gas valve clockwise to OFF Do not force See figure 11 7 Wait five minutes to clear out any gas If you then smell gas STOP Immediately call your gas supplier from a neighbor s phone Follow...

Page 20: ...s Leak Detector is strongly recommended It is available through Lennox under part number 31B2001 See Corp 8411 L10 for further details Do not use matches candles flame or any other source of ignition...

Page 21: ...Seconds for One Revolution G60UH Natural LP G60UH Unit 1 cu ft Dial 2 cu ft Dial 1 cu ft Dial 2 cu ft DIAL 45 82 164 205 410 70 55 110 136 272 90 41 82 102 204 110 33 66 82 164 135 27 54 68 136 Natur...

Page 22: ...perates continuously With fan switch in AUTO position blower cycles with demand or runs continuously while heating or cooling circuit cycles 3 Depending on the type of indoor thermostat blower and ent...

Page 23: ...elocity air flow C Flue And Chimney Check the flue pipe chimney and all connections for tight ness and to make sure there is no blockage D Electrical 1 Check all wiring for loose connections 2 Check f...

Page 24: ...er section Vacuum debris from bottom open ings 14 Replace collector box and combustion air inducer Check gaskets for damage Damaged gaskets must be replaced to avoid heat exchanger leaks Replace all s...

Page 25: ...Page 25 VII Wiring and Sequence of Operation G60UH 1 2 3...

Page 26: ...Page 26 G60UH 4 5...

Page 27: ...stage heat ignitor de energizes 5 After 45 second delay indoor blower B3 is energized on low heat speed The furnace will stay in this mode until first stage de mand is satified OR a second stage heat...

Page 28: ...PRIMARY AND SECONDARY LIMIT SWITCHES CLOSED YES NO COMBUSTION AIR INDUCER OFF INDOOR BLOWER ON HAS PRIMARY OR SECONDARY LIMIT RESET WITHIN 3 MINUTES DS1 SLOW FLASH DS2 ON ROLLOUT SWITCH CLOSED GAS VAL...

Page 29: ...PLACED OR RECONNECTED DS1 AND DS2 ALTERNATING FAST FLASH YES AT END OF IGNITOR 20 SECOND WARM UP PERIOD 4 SECOND TRIAL FOR IGNITION GAS VALVE OPENS IGNITOR ENERGIZED DURING 4 SECOND TRIAL UNTIL FLAME...

Page 30: ...FF AFTER DELAY DS1 OFF DS 2 SLOW FLASH NO YES C FIRST STAGE HEAT DEMAND SATISFIED DS1 AND DS2 SIMULTANEOUS SLOW FLASH GAS VALVE OFF COMBUSTION AIR INDUCER OFF FOLLOWING POST PURGE INDOOR BLOWER OFF WI...

Page 31: ...PERIOD IS INITIATED BEFORE RETRY WERE 5 ATTEMPTS MADE FOR SECOND STAGE HEAT YES NO SEE BOX C FIRST STAGE HEAT DEMAND SATISFIED HEAT DEMAND SATISFIED DS1 AND DS2 SIMULTANEOUS FAST FLASH YES TWO STAGE...

Page 32: ...FAN SELECTION MADE AT THERMOSTAT AFTER 2 SECOND DELAY INDOOR BLOWER IS ENERGIZED ON CONTINUOUS FAN SPEED LOW HEAT LOW COOL THERMOSTAT CALLS FOR FIRST STAGE HEAT THERMOSTAT CALLS FOR FIRST STAGE COOL...

Page 33: ...ON 10 minutes OFF 15 minutes SINGLE Leave Installed S1 T STAT CONTROL TERM STRIP OUTDOOR UNIT HSXB15 LSOM 1 Heat 2 Cool NOTE Use dip switch 3 to set second stage heat ON delay ON 10 minutes OFF 15 mi...

Page 34: ...ump 1 Cool SINGLE Leave Installed CONTROL TERM STRIP FM21 75VA 24V TRANSFORMER Disconnect existing furnace transformer and re place with 75VA 24V trans former if defrost option to be used NOTE Wiring...

Page 35: ...nsformer output is 24V Replace if defective 1 1 6 Failed control board ACTION 1 If all the above items have been checked replace board 1 2 Diagnostic lights flash the reverse ACTION 1 Check the 120V h...

Page 36: ...iagnostic lights flash the pressure 2 2 1 Miswiring of furnace or improper con nections to combustion air inducer ACTION 1 Check for correct wiring and loose connections Correct wiring and or replace...

Page 37: ...ired LED 2 Slow Flash 4 1 4 Condensate in pressure switch line ACTION 1 Check pressure switch line for con densate Remove condensate from line 4 1 5 Pressure switch does not close due to a low differe...

Page 38: ...ure switch code LED 1 Off LED 2 Slow Flash 6 1 1 Low pressure differential at the pres sure switch ACTION 1 Check for restricted exhaust vent Remove all blockage ACTION 2 Check for proper vent sizing...

Page 39: ...estrictions in the heat exchanger assembly Clean assembly as outlined in instruction manu al ACTION 2 Check for proper combustion See IV Heating System Service Checks section G 6 3 4 Burners are not p...

Page 40: ...improperly located on the burner ACTION 1 Check the sense rod for proper loca tion on the burner Properly locate the sense rod or replace if rod cannot be located correctly code LED 1 Slow Flash LED 2...

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