Инструкция на Газовые печи Lennox серии GM...

Текст инструкции

1. Стр. 1 INSTALLATION

   INSTRUCTIONS G24MCE Series  2000 Lennox Industries Inc. Dallas, Texas PRODUCT LITERATURE GAS-FIRED FURNACE Direct Spark Ignition 503,956M 05/2000 Supersedes 11/99 Litho USA Table of Contents G24MCE Unit Dimensions . . . . . . . . . . . . . . . . . . . . 2 G24MCE GasĆFired Furnace . . . . . . . . .…

2. Стр. 2 G24MCE Unit Dimensions - millimeters

   GAS PIPING INLET ELECTRICAL INLETS (Top & Bottom) 25 G24MCE Series E D Unit shown in upflow position. Rotate 180° for downflow applications and 90° clockwise or counterclockwise for horizontal applications. FLUE OUTLET *C 105 25 *483 25 SUPPLY AIR OPENING *NOTE - The supply air opening is equipped…

3. Стр. 3 G24MCE GasĆFired Furnace

   The G24MCE multi-position gas furnace is shipped ready for installation in the upflow position. The unit can easily be converted for installation in either downflow or horizonĆ tal applications. The furnace is shipped with a bottom seal panel in place for side return air in upflow applications.…

4. Стр. 4 In addition to the requirements outlined previously, the folĆ

   lowing general recommendations should be considered when installing the Lennox G24MCE furnace. The furnace should be placed as close to the center of the air distribution system as possible. The furnace should also be located close to the chimney or vent termination point. Do not install the furnace…

5. Стр. 5 Air from Inside

   If the confined space that houses the furnace adjoins a space categorized as unconfined, air can be brought in by providing two permanent openings between the two spaces. Each opening must have a minimum free area of 22cm2 per 1 kW (1 square inch per 1000 Btuh) of total input rating of all gas-fired…

6. Стр. 6 CHIMNEY

   OR GAS VENT NOTE - 1/3 and 1/2 hp fan motors are equipped with eiĆ ther four flexible mounting legs or 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).…

7. Стр. 7 UNIT CONVERSION FOR DOWNFLOW APPLICATION

   REMOVE TOP CAP REINSTALL TOP CAP ON UNIT BOTTOM SINGLE-WALLED VENT PIPE FROM COMBUSTION AIR FAN FLUE ADAPTER TO FURNACE FLUE OUTLET (Furnished by installer) REMOVE FOUR SCREWS RECONNECT WIRE HARNESS AT CONTROL BOARD CONNECTOR DISCONNECT IGNITOR & SENSOR LEADS ROTATE HEAT EXCHANGER & REINSTALL…

8. Стр. 8 TABLE 1

   NONCOMBUSTIBLE FLOOR OPENING UNIT G24MCE-45/60/75 G24MCE-100/120 G24MCE-140 Front to Rear mm in 19-3/4 19-3/4 19-3/4 3 - Check glass fibre strips on additive base to make sure they are properly glued and positioned. 4 - Lower supply air plenum into additive base until pleĆ num flanges seal against…

9. Стр. 9

   See figure 10 for furnace installations on a platform. NOTE - When the furnace is installed on a platform in a crawlspace, it must be elevated enough to avoid water damage and to allow the air conditioning coil to drain. Horizontal Application Unit Installed on Platform NOTE - Line contact is…

10. Стр. 10 In downflow applications, use the following steps when

    installing return air plenum: 1 - Flange bottom edge of plenum with a hemmed edge. See figure 12. 2 - In all cases, secure the plenum to the top flanges of the furnace using sheet metal screws. See figure 12. SECURE PLENUM HEMMED EDGE The G24MCE unit is not certified for common venting. A flue…

11. Стр. 11 Recommendations and Requirements

    When sizing and installing a vertical flue using metal flue connectors and either metal flue pipe or a lined masonry chimney, the following recommendations and requireĆ ments should be considered in addition to those outlined above: 1 - Accessories attached to the flue to reduce heat loss and…

12. Стр. 12 The space between the liner and the chimney wall

    should NOT be insulated with puffed mica or any othĆ er loose granular insulating material. When inspection reveals that an existing chimney is not safe for the intended purpose, it shall be rebuilt to conform to nationally recognized standards. The chimney pasĆ sageway must be checked periodically…

13. Стр. 13 2 - Meters - A gas meter is connected to the service pipe

    by the gas supply authorities. An existing meter should be checked by the gas supply authorities to ensure that the meter is adequate to deal with the rate of gas supply required. 3 - Pipework from the meter to the air furnace must be of adequate size. Do not use pipes of a smaller size than the…

14. Стр. 14 TABLE 4 - GAS PIPE CAPACITY (FT3/HR)

    Length of Pipe - feet Nominal Iron Pipe Size inches Internal Diameter inches 1/4 3/8 .364 .493 1/2 .622 3/4 .824 1.049 1-1/4 1.380 1,400 1-1/2 1.610 2,100 460 1,180 2.067 3,950 2,750 2,200 1,900 1,680 1,520 1,400 1,300 1,220 1,150 2-1/2 2.469 6,300 4,350 3,520 3,000 2,650 2,400 2,250 2,050 1,950…

15. Стр. 15 8 - Three 240 volt accessory terminals are provided on

    the control board. Two are energized with the indoor blower and one is energized with the combustion air blower. Any accessory rated up to one amp can be connected to the accessory terminals with the neutral leg of the circuit being connected to the 240 volt neuĆ tral wires. IMPORTANT At pressures…

16. Стр. 16 EGC-3ACE INTEGRATED CONTROL BOARD

    HEATING SPEED TAP TERMINAL CONTINUOUS FAN TERMINAL GND DIAGNOSTIC CODE ERASE JUMPER (Remove power to control and short pins for 10 secĆ onds to erase previous code.) COOLING SPEED TAP TERMINAL ACCESSORY TERMINALS RED DIAGNOSTIC BUTTON (Depress button and hold for display of last failure code.) L1…

17. Стр. 17 G24MCE SCHEMATIC WIRING DIAGRAM

18. Стр. 18 5 - Wait five (5) minutes to clear out any gas. If you then

    smell gas, STOP! Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. If you do not smell gas go to next step. Unit Start-Up FOR YOUR SAFETY READ BEFORE OPERATING WARNING S.I.T. GAS VALVE Do not use this furnace if any part has been underĆ water.…

19. Стр. 19 Unit Adjustments

    HIGH LIMIT AND CAPILLARY TUBE LIMIT The high limit and manuallyĆreset capillary tube limit are both located on the heating compartment vestibule panel. Both limits are factory set and do not require field adjustĆ ment. When there is inadequate supply air (a high supply air temperature), the high…

20. Стр. 20 BURNER FLAME ADJUSTMENT

    The G24MCE burner flame is not adjustable; however, the flame should be inspected at the beginning of each heating season. If necessary, clean the burners. The burner flame should be blue when burning natural gas, and blue/yellow when burning propane gas. See figure 25. At the beginning of each…

21. Стр. 21 E - BURNERS

    9 - Restore electrical power and gas supply to the furĆ nace. Follow lighting instructions on the front of the unit. Check the appearance of the burner flame, burnĆ er pressure, gas flow, and temperature rise. If necesĆ sary, make adjustments. See the other unit adjustĆ ments section. Inspect the…

22. Стр. 22 Technical Data Table

    NO. DESCRIPTION UNITS -45 -60 *1 INPUT RATING kW 13.2 17.6 *2 OUTPUT RATING kW 10.5 14 3 NUMBER OF INJECTORS GAS CONNECTION SIZE mm (INCHES) 13 (1/2) 5 FLUE ADAPTER SIZE mm (INCHES) 6 WEIGHT 7 3-75 4-75 -100 -120 -140 22 22 29.9 35.2 41.1 17.6 17.6 23.9 28.1 32.8 (1/2) 13 (1/2) 13 (1/2) 13 (1/2) 13…

23. Стр. 23 Ignition Control Board Diagnostic Codes

    EGC-3ACE INTEGRATED CONTROL BOARD RED DIAGNOSTIC BUTTON (Depress button and hold for display of last failure code.) DIAGNOSTICS LEDS DIAGNOSTIC CODE ERASE JUMPER (Remove power to control and short pins for 10 seconds to erase previous code.) L1 GND DSI BOARD DIAGNOSTIC PATTERNS DIAG 1 Flashing…

24. Стр. 24 HEATING SEQUENCE OF OPERATION

    ABNORMAL HEATING MODE NORMAL HEATING MODE GAS VALVE OFF. COMB. BLOWER ON. INDOOR BLOWER ON HEAT SPEED. SEQUENCE HOLDS UNTIL NO FLAME SENSED OR MAIN POWER IS INTERRUPTED AND RESET. DIAG. CODE: 1- FLASHING; 2-OFF (FLAME SENSED WITHOUT VALVE ENERGIZED) CONTROL MAIN POWER ON" FLAME OFF? YES CONTROL…

25. Стр. 25 COOLING SEQUENCE OF OPERATION

    NORMAL COOLING MODE ABNORMAL COOLING MODE POWER ON IGNITION CONTROL MAIN POWER ON. CONTROL SELF DIAGNOSTIC CHECK. IS CONTROL OPERATING NORMALLY? NO YES NO CAPILLARY TUBE LIMIT MONITORED CONTINUOUSLY. IS CAPILLARY TUBE LIMIT SWITCH CLOSED? YES NO CHECK FOR MAIN BURNER FLAME SENSE. IS MAIN BURNER…

26. Стр. 26 CONTINUOUS LOW SPEED FAN SEQUENCE OF OPERATION

    LED: Slow flash rate. REMAINS UNCHANGED THROUGHOUT SEQUENCE. CONTINUOUS FAN SELECTION MADE AT THERMOSTAT. CONTROL ENERGIZES SYSTEM FAN AT CONTINUOUS SPEED. ACC TERMINAL ENERGIZED. THERMOSTAT CALLS FOR HEAT. NO YES SYSTEM FAN SWITCHES TO HEATING SPEED AFTER SELECTED DELAY. ACC TERM. REMAINS…

27. Стр. 27 Repair Parts List

    The following repair parts are available through independent Lennox dealers. When ordering parts, include the complete furnace model number listed on the rating plate Ċ Example: G24MCE3-75-1T. Refer to figure 27 for parts identification. CABINET PARTS SUPPLY AIR FAN PARTS Ignition cable Door chain…

28. Стр. 28 G24MCE Start-up and Performance Check List

    Job Name Job Location Installer Unit Model No. Job No. City Serial No. City Date State/Province State/Province Serviceman HEATING SECTION Electrical Connections Tight? Supply Voltage fan Motor Amps fan Motor H.P./Kw Fan Motor Lubrication OK? Gas Piping Connections Tight & Leaks Tested? Fuel Type…

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