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Page 13

BLOWER DATA

G50UH−60D−155−1, −2, −3 PERFORMANCE − Bottom Return Air, Side Return Air with Optional RAB Return Air Base, Return
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

2380

1120

1135

2235

1055

1000

2060

970

875

1875

885

750

0.05

12

2340

1105

1130

2205

1040

990

2035

960

865

1840

870

745

0.10

25

2305

1090

1125

2180

1030

975

2015

950

855

1810

855

735

0.15

37

2265

1070

1105

2145

1010

960

1990

940

845

1790

845

725

0.20

50

2220

1045

1090

2105

995

945

1960

925

835

1765

835

720

0.25

62

2180

1030

1075

2080

980

935

1935

910

825

1740

820

710

0.30

75

2145

1010

1065

2050

965

925

1905

900

815

1715

810

700

0.40

100

2060

970

1040

1975

930

900

1845

870

795

1655

780

685

0.50

125

1955

925

1005

1890

890

870

1765

835

770

1610

760

670

0.60

150

1885

890

975

1795

850

840

1695

800

750

1560

735

655

0.70

175

1800

850

955

1730

815

815

1605

760

720

1480

700

635

0.80

200

1700

805

930

1630

770

785

1520

715

695

1405

660

615

0.90

225

1575

745

895

1525

720

760

1395

660

660

1285

605

585

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.

G50UH−60D−155−1, −2, −3 PERFORMANCE − Single Side Return Air − Air volumes in bold require field fabricated transition
to accommodate 20 x 25 x 1 in. (508 x 635 x25 mm) cleanable air filter in order to maintain proper air velocity.

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

2230

1050

1080

2130

1005

945

1995

940

840

1830

865

745

0.05

12

2200

1035

1070

2105

990

935

1970

930

830

1810

855

735

0.10

25

2165

1025

1060

2075

980

930

1950

920

820

1795

845

725

0.15

37

2135

1005

1050

2040

965

915

1920

905

815

1765

835

720

0.20

50

2100

990

1035

2005

945

905

1890

895

805

1735

820

710

0.25

62

2050

965

1015

1975

930

895

1855

875

795

1705

805

700

0.30

75

2000

945

995

1940

915

880

1820

860

780

1675

790

690

0.40

100

1905

900

965

1860

875

850

1755

825

770

1630

770

680

0.50

125

1825

860

945

1780

840

830

1700

800

750

1555

735

660

0.60

150

1745

825

920

1690

795

805

1595

750

715

1495

705

645

0.70

175

1650

780

905

1610

760

785

1515

715

705

1430

675

625

0.80

200

1565

740

880

1520

715

755

1445

680

680

1330

630

605

0.90

225

1445

685

845

1385

655

720

1300

610

640

1225

580

575

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.

Содержание G50UH Series

Страница 1: ...n 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 recommended only and do...

Страница 2: ...CH33 36B 2F CH33 42B 2F CH33 44 48B 2F Electrical characteristics 120 volts 60 hertz 1 phase less than 12 amps OPTIONAL ACCESSORIES MUST BE ORDERED EXTRA Air Filter and Rack Kit Number and size of fi...

Страница 3: ...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 Filter Rack Kit Horizontal end 87L96 1 18 x 25...

Страница 4: ...g Base Dimensions H x W x D 4 x 21 5 8 x 28 5 8 in 102 x 549 x 727 mm 4 x 24 5 8 x 28 5 8 in 102 x 625 x 727 mm Number and size of field provided fil ter 20 x 25 x 1 in 508 x 635 x25 mm 24 x 24 x 1 in...

Страница 5: ...6K63 1 16 x 25 x 1 406 x 635 x 25 EZ Filter Base Catalog Number Shipping Weight 73P57 8 lbs 4 kg 73P58 10 lbs 5 kg Base Dimensions H x W x D 4 x 21 5 8 x 28 5 8 in 102 x 549 x 727 mm 4 x 24 5 8 x 28 5...

Страница 6: ...with 1 in 25 mm cleanable filter not furnished field provided in place Also see Filter Air Resistance table G50UH 24A 070 PERFORMANCE External Static Air Volume Watts at Various Blower Speeds Externa...

Страница 7: ...h 1 in 25 mm cleanable filter not furnished field provided in place Also see Filter Air Resistance table G50UH 36B 090 PERFORMANCE External Static Air Volume Watts at Various Blower Speeds External St...

Страница 8: ...555 1265 595 459 40 100 1820 860 699 1670 790 611 1470 695 525 1255 590 443 50 125 1740 820 664 1600 755 575 1420 670 496 1215 575 414 60 150 1635 770 624 1530 720 544 1350 635 464 1175 555 400 70 17...

Страница 9: ...t with 1 in 25 mm cleanable filter not furnished field provided in place Also see Filter Air Resistance table G50UH 48C 135 PERFORMANCE External Static Air Volume Watts at Various Blower Speeds Extern...

Страница 10: ...filter not furnished field provided in place Also see Filter Air Resistance table G50UH 60C 110 1 2 3 PERFORMANCE Single Side Return Air Air volumes in bold require field fabricated transition to acc...

Страница 11: ...60 667 30 75 2205 1040 1218 2075 980 924 1860 875 782 1605 755 655 40 100 2130 1005 1189 2005 945 905 1815 855 752 1595 750 636 50 125 2045 965 1159 1920 905 864 1750 825 726 1565 740 619 60 150 1955...

Страница 12: ...tts 00 0 2715 1280 1407 2255 1065 1070 1910 900 850 1660 785 674 10 25 2640 1245 1403 2250 1060 1030 1900 895 834 1645 775 668 20 50 2540 1200 1355 2245 1060 1006 1890 890 821 1630 770 665 30 75 2480...

Страница 13: ...nable filter not furnished field provided in place Also see Filter Air Resistance table G50UH 60D 155 1 2 3 PERFORMANCE Single Side Return Air Air volumes in bold require field fabricated transition t...

Страница 14: ...r Air volumes in bold require field fabricated transition to accom modate 20 x 25 x 1 in 508 x 635 x25 mm cleanable air filter in order to maintain proper air velocity External Static Air Volume Watts...

Страница 15: ...10 0 2 49 HIGH ALTITUDE G50UH 1 1 High Altitude Orifice Kit Natural Gas Only High Altitude Prove Switch Kit LPG Propane Kit G50UH 1 to 14 Natural Gas Only 4501 7500 ft 1373 2286m 7501 10 000 ft 2287...

Страница 16: ...Burner Bottom Shield Limit Shield Secondary Limit as required NOx Units Only G50UH X PARTS ARRANGEMENT UP FLOW POSITION FIGURE 1 Gas Manifold 135 and 155 kBtuh units only Flame rollout switches are lo...

Страница 17: ...HEATING COMPONENTS COMBUSTION AIR INDUCER PROVE SWITCH PRIMARY LIMIT PRIMARY LIMIT SHIELD GAS VALVE ROLLOUT SWITCHES MANIFOLD BURNER ASSEMBLY NOx Insert NOx Units Only HEAT EXCHANGER FLUE COLLECTOR B...

Страница 18: ...also located in the control box The switch provides overcurrent protection to the trans former T1 The breaker is rated 3A at 32V If the cur rent exceeds this limit the breaker will trip and all unit...

Страница 19: ...times with an inter purge and warm up time between trials of 35 seconds Af ter a total of five trials for ignition including the initial trial the control goes into Watchguard Flame Failure mode Af t...

Страница 20: ...4 shows 24 volt and 120 volt control terminal designations Tables 5 and 6 show jack plug terminal designations See table 8 for troubleshooting diagnostic codes Units equipped with the SureLight system...

Страница 21: ...ight control utilizes less power to energize the ignitor on successive calls for heat The control continues to ramp down the voltage to the ignitor until it finds the lowest amount of power that will...

Страница 22: ...tor improperly attached ON ON ON OFF Circuit board failure or control wired incorrectly OFF ON y FAST FLASH SLOW FLASH Main power polarity reversed Switch line and neutral SLOW FLASH FAST FLASH Low fl...

Страница 23: ...the board voltage cannot be measured so ignitor must be ohmed Ohm value should be 10 9 to 19 7 See figure 12 for ignitor location NOTE The G50UH X furnace contains electronic components that are polar...

Страница 24: ...60C 110 4 5 units 2 5 32 36C 110 2 5 32 48C 60D 135 6 and later 1 to 5 units 2 3 8 2 5 32 60D 155 2 60 Horizontal Applications The G50UH X furnace can be installed in horizontal ap plications The comb...

Страница 25: ...nace control energizes the supply air blower and closes the gas valve The limit automatically resets when unit tempera ture returns to normal The switch must reset within three min utes or SureLight...

Страница 26: ...throw proving switch elec trically connected to the furnace control The purpose of the switch is to prevent burner operation if the combustion air inducer is not operating or if the flue becomes obstr...

Страница 27: ...rical power to unit if service is to be performed 3 Remove access panel 4 Switch lever on White Rodgers gas valve to OFF turn knob on Honeywell valve clockwise to OFF Do not force 5 Replace access pan...

Страница 28: ...anifold pres sure settings Manifold Adjustment Procedure 1 Connect a test gauge to outlet pressure tap on gas valve See figures 15 16 and 17 Start unit and allow 5 minutes for unit to reach steady sta...

Страница 29: ...AD TO IGNITION CONTROL SENSOR WIRE FIGURE 20 TABLE 16 FLAME SIGNAL in MICROAMPS SureLight Normal Low Drop Out 56L83 97L48 0 61 0 21 0 60 0 20 69M15 0 31 0 25 0 30 0 24 V TYPICAL OPERATING CHARACTERIST...

Страница 30: ...COOL terminal The con tinuous blower tap is connected to the FAN terminal To change existing heat tap turn off power then switch out speed tap on HEAT with tap connected to one of two PARK terminals S...

Страница 31: ...n air inducer Leaving off screws may cause leaks 13 Clean burner by running a vacuum with a soft brush at tachment over face of burners Visually inspect inside of burners and crossovers for any blocka...

Страница 32: ...2 minutes or control goes into 5 minute Watchguard Pressure Switch delay Once S18 closes a 15 second pre purge follows 4 SureLight control A92 energizes ignitor A 20 second warm up period begins 5 Ga...

Страница 33: ...oes into 5 minute Watchguard Pressure Switch delay Once S18 closes a 15 second pre purge follows 4 SureLight control A92 energizes ignitor A 20 second warm up period begins 5 Gas valve opens for a 4 s...

Страница 34: ...COMBUSTION AIR INDUCER OFF INDOOR BLOWER OFF WITH DELAY LED 1 OFF LED 2 SLOW FLASH Sequence holds until PROVE switch closes or thermostat resets control NO NO YES NO IS THERE PROPER GROUND IS VOLTAGE...

Страница 35: ...CER OFF INDOOR BLOWER OFF WITH DELAY LED 1 ALT SLOW FLASH LED 2 ALT SLOW FLASH IS 60 MINUTE RESET PERIOD COMPLETE YES 4 SECONDS YES HAS CONTROL RESET IGNITION SEQUENCE FOUR TIMES FLAME SIGNAL NORMAL S...

Страница 36: ...ACTOR AND SYSTEM FAN ENERGIZED AFTER DELAY Control 69M15 2 second delay Control 56L83 97L48 0 second delay COOL SPEED AND ELECTRONIC AIR CLEANER TERMINAL IS ENERGIZED COMPRESSOR OFF THERMOSTAT OPENS C...

Страница 37: ...OPENS COMBUSTION AIR INDUCER AND HEATING ACCESSORY TERMINAL ARE DE ENERGIZED INDOOR BLOWER SWITCHES TO COOL SPEED THERMOSTAT OPENS INDOOR BLOWER SWITCHES TO CONTINUOUS BLOWER ELECTRONIC AIR CLEANER T...

Страница 38: ...ION 1 Manually reset the roll out switch by pushing the top button ACTION 2 Determine the cause of the roll out switch activation before leaving furnace code LED 1 O 1 2 2 Roll out switch failure ACTI...

Страница 39: ...1997 combustion air inducer will cycle 5 seconds on 55 seconds off LED 1 Alternating Fast Flash LED 2 Alternating Fast Flash 2 1 2 Broken or failed ignitor ACTION 1 Unplug ignitor and read resistance...

Страница 40: ...ing demand Diagnostic lights flash the pressure switch failure code 2 5 minutes after heating demand 4 1 2 Prove switch does not close due to obstructions in the pressure lines ACTION 1 Remove any obs...

Страница 41: ...ssure switch code LED 1 Off LED 2 Slow Flash 6 1 1 Low pressure differential at the prove switch ACTION 1 Check for restricted exhaust vent Remove all blockage ACTION 2 Check for proper vent sizing Se...

Страница 42: ...6 3 3 Insufficient flow through the heat ex changer caused by a sooted or re stricted heat exchanger ACTION 1 Check for sooting deposits or other restrictions in the heat exchanger assembly Clean asse...

Страница 43: ...Properly locate the sense rod or replace if rod cannot be located correctly sense code LED 1 Slow Flash LED 2 Fast Flash 7 1 2 Sense rod is contaminated ACTION 1 Check sense rod for contamination or...

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