Lennox G26 Series Скачать руководство пользователя страница 30

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Page 30

Troubleshooting

SURELIGHT CONTROL

CONTINUOUS FAN SEQUENCE OF OPERATION

LED: SLOW FLASH RATE REMAINS

UNCHANGED THROUGHOUT SEQUENCE.

MANUAL FAN SELECTION MADE AT THERMOSTAT.

CONTROL (G) ENERGIZES INDOOR BLOWER AT

ACB LOW SPEED. ACC. TERM. IS ENERGIZED.

THERMOSTAT CALLS FOR HEAT (W).

THERMOSTAT CALLS FOR COOLING.

THERMOSTAT OPENS. COMBUSTION AIR INDUCER

AND HTG ACC. TERMINAL ARE DE-ENERGIZED.

INDOOR BLOWER SWITCHES TO ACB COOL SPEED.

THERMOSTAT OPENS.

INDOOR BLOWER SWITCHES TO ACB LOW

SPEED. ACC. TERM. REMAINS ENERGIZED.

YES

HTG ACC. TERM. ENERGIZES

WITH COMB. AIR INDUCER.

INDOOR BLOWER SWITCHES TO ACB HEAT

SPEED AFTER NORMAL DELAY.

INDOOR BLOWER SELECTED TIME OFF DELAY BEGINS.

AFTER DELAY ACB HEAT SPEED DE-ENERGIZED.

(blower remains energized during continuous fan mode).

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Содержание G26 Series

Страница 1: ...ting 26 Start Up Performance Check List 31 RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE WHAT TO DO IF YOU SMELL GAS Do not store or use gasoline or other flammable vapors and liquids in the vi cinit...

Страница 2: ...INTAKE 21 3 4 552 7 3 8 187 23 3 4 603 25 635 5 8 16 H G 5 8 16 EXTERNAL SIDE RETURN AIR FILTER KIT Either Side Optional 23 584 D Return Air Knockout Bottom 4 102 Model No A B C D E F G H Model No in...

Страница 3: ...ME SIGHT GLASS DuralokPlusTM HEAT EXCHANGER ASSEMBLY CONDENSER COIL CONTROL TRANSFORMER CONTROL BOX COVER DOOR INTERLOCK SWITCH CONTROL VOLTAGE CIRCUIT BREAKER WARM HEADER COLLECTOR BOX COLD HEADER CO...

Страница 4: ...e hangar or other building that has a hazardous atmosphere the furnace must be installed according to recommended good practice requirements and current National Fuel Gas Code or CAN CGA B149 1 and B1...

Страница 5: ...be installed in areas normally subject to freezing temperatures Return Air Opening Guidelines WARNING Blower door must be securely in place when blower and burners are operating Gas fumes which could...

Страница 6: ...AIR OPENING SIDE FILTER CLIPS 2 FURNACE FRONT FURNACE BACK Side Return Air Applications An external filter rack ordered separately is available from Lennox NOTE The filter door may be shipped in the...

Страница 7: ...American National Standard Institute and the American Society for Testing and Materials ANSI ASTM standards The solvent shall be free flowing and contain no lumps undissolved particles or any foreign...

Страница 8: ...s the intake connection is sized for 3 inch diameter pipe The exhaust connection has a 2 inch nipple A pipe transition piece is shipped with the unit to connect to 3 inch pipe See figure 7 for 2 inch...

Страница 9: ...abric softeners for clothes dryers Masonry acid washing materials Intake Piping 1 Cement intake piping in slip connector located at top of unit 2 Route piping to outside of structure Continue with ins...

Страница 10: ...intake piping upwind prevailing wind from exhaust piping To avoid re circulation of exhaust gas on roof terminations end of exhaust pipe must be higher than intake pipe Exhaust and intake exits must b...

Страница 11: ...all to position above snow accumulation or other ob structions Piping must be supported every 3 feet 91m as shown in figure 15 Refer to figures 13 and 14 for proper piping method WTK wall termination...

Страница 12: ...authorities having local jurisdiction At vent termination care must be taken to maintain protective coatings over building materials pro longed exposure to exhaust condensate can destroy protective co...

Страница 13: ...AKE VENT Side View OPTIONAL VENT TERMINATION FOR MULTIPLE UNIT INSTALLATION WALL TERMINATION KIT WTK Inches mm FIGURE 18 12 MIN 305 Above Grade COVER EXHAUST VENT WITH 1 2 13 FOAM INSULATION Front Vie...

Страница 14: ...UCER BRACKET CONDENSATE TRAP 3 Use the provided adapter 1 2 inch PVC x 1 2 inch MPT and the nipple 1 2 inch PVC to carry drainage outside the cabinet If a field substitute is needed 1 2 inch CPVC x 1...

Страница 15: ...combustion air inducer See figure 23 4 The piping should be sloped 1 4 inch 6 4 mm per 15 feet 4 57 m upward toward the meter from the fur nace The piping must be supported at proper inter vals every...

Страница 16: ...c feet of gas per hour kilo liters of gas per hour and based on 0 60 specific gravity gas The furnace must be isolated from the gas supply system by closing its individual manual shut off valve during...

Страница 17: ...et of the jack See fig ure 27 Any accessory rated up to 4 amps can be con nected to this wire Connect the neutral leg of the acces sory to the neutral white wire in the make up box The ac cessory term...

Страница 18: ...IGHT CONTROL DOOR INTERLOCK SWITCH TRANSFORMER DETACHABLE TERMINAL STRIP SURELIGHT INTEGRATED CONTROL BOARD FIGURE 30 TERMINAL DESIGNATIONS ACB COOL ACB HEAT PARK ACB LOW ACC TX HOT HTG ACC NEUTRALS 2...

Страница 19: ...Page 19 FIGURE 31 TYPICAL G26 WIRING DIAGRAM OUTDOOR UNIT OUTDOOR UNIT B6 COMBUSTION AIR INDUCER MOTOR Downloaded from ManualsNet com search engine...

Страница 20: ...around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor Gas valve may be equipped with either a gas control knob or leve...

Страница 21: ...s To Unit and call your service techni cian or gas supplier To Turn Off Gas To Unit 1 Set thermostat to lowest setting 2 Turn off all electrical power to unit if service is to be per formed 3 Remove h...

Страница 22: ...te only during nor mal unit operation 6 When test is complete remove obstruction from hose and return hose to gas valve barbed fitting Gas Flow To check for proper gas flow to the combustion chamber d...

Страница 23: ...applicable is operating Blower Check the blower wheels for debris and clean if necessary The blower motors are prelubricated for ex tended bearing life No further lubrication is needed Filters 1 Filte...

Страница 24: ...he plas tic orifice in the inducer inlet to make sure it has not fallen out See figure 1 Reconnect the 2 pin plug to the wire harness Re install the flue transition in the cabinet and re attach the dr...

Страница 25: ...akes a good seal The burners sit on top of the burner box flanges Make certain that the screws from the underneath the box pass through the larger holes in the flange and engage in the smaller holes i...

Страница 26: ...SLOW FLASH SLOW FLASH SLOW FLASH FAST FLASH Primary or secondary limit switch open Rollout switch open OR 9 pin connector improperly attached Flame sensed without gas valve energized Pressure switch o...

Страница 27: ...D 2 OFF GAS VALVE OFF COMBUSTION AIR INDUCER OFF INDOOR BLOWER OFF WITH DELAY LED 1 OFF LED 2 SLOW FLASH Sequence holds until pressure switch closes or thermostat resets control NO NO YES NO IS THERE...

Страница 28: ...ERGIZED YES FLAME STABILIZATION PERIOD GAS VALVE OFF COMBUSTION AIR INDUCER ON INDOOR BLOWER OFF HAS CONTROL FAILED TO SENSE FLAME FOR FIVE CONSECUTIVE TRIES DURING A SINGLE HEAT DEMAND IGNITION WATCH...

Страница 29: ...MPRESSOR CONTACTOR AND SYSTEM FAN ENERGIZED WITH 0 SECOND DELAY ACB COOL SPEED TERMINAL IS ENERGIZED ACC TERMINAL IS ENERGIZED COMPRESSOR OFF THERMOSTAT OPENS SYSTEM FAN AND ACC TERM OFF WITH 0 SECOND...

Страница 30: ...G THERMOSTAT OPENS COMBUSTION AIR INDUCER AND HTG ACC TERMINAL ARE DE ENERGIZED INDOOR BLOWER SWITCHES TO ACB COOL SPEED THERMOSTAT OPENS INDOOR BLOWER SWITCHES TO ACB LOW SPEED ACC TERM REMAINS ENERG...

Страница 31: ...Pressure Job No City City Serial No Date State Technician Flue Connections Tight HEATING SECTION THERMOSTAT Heat Anticipator Properly Set Level Fuel Type Natural Gas LP Propane Gas Blower Motor H P G...

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