Benutzeranleitung / Produktwartung G50UH-36C-110 des Produzenten Lennox International Inc.
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,1_ 2006 Lennox industries Inc. Dallas, Texas, USA INSTALLATION INSTRUCTIONS G50UH(X) Series GAS FURNACE 505,254M _ Technical 8/2006 .L_ ._L Publications Supersedes 504,957M Lithe U.S.A. RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE Unit Dimensions .
1 NOTE - 60C and 60D size units that require air volumes over 1800 cfm (850 L/s) must have one of the following: 1. Single side return air with transition, to accommodate 20 x 25 x 1 in. (508 x 635 x 25 mm) air filter. Required to maintain proper air velocity across the filter.
Gasket Flue Box Gasket Heat Exchanger Flue Collector Box Air Deflector G50UH-48C-135, G50UH-60C-110 & G50UH-60D-155 Units Only Flue Transition % Flame Sensor _ Flame Rollout Switches* Flame Rollou.
The G50UH(X) gas furnace is shipped ready for installa- tion in theupfiow or horizontal position (left or right). The furnace is shipped with the bottom panel in place. The bot- tom panel must beremoved if the unit is to be installed in a horizontal application.
When installed, this furnace must be electrically grounded according to local codes. Inaddition, in the United States, installation must conform with the current National Elec- tricCode, ANSI/NFPA No.
Inthe past, there was noproblem inbringing insufficient out- door air for combustion. Infiltration provided all theair that was needed. Intoday's homes, tight construction practices make it necessary to bring in airfrom outside forcombus- tion.
CHIMNEY VENT EQUIPMENT IN CONFINED SPACE ALL AIR FROM INSIDE WiTER / HEATER FURNACE 1_ OPENINGS (To Adjacent Room) I I I I NOTE - Each opening shall have a free area of at least one square inch (645 mm 2) per 1,000 Btu (.29 kW) per hour of the total input rat- ing of all equipment in the enclosure, but not less than 100 square inches (64516 mm2).
CHIMNEY OR GAS VENT_ EQUIPMENT IN CONFINED SPACE ALL AIR FROM OUTSIDE (All Air Through Ventilated Attic) VENTILATION LOUVERS (Each end of attic) FURNACE INLET AIR (Ends 12 in. above bottom) HEATER NO TE- The inlet and outlet air openings shall each have a free area of at least one square inch (645 mm 2) per 4,000 Btu (1.
Return Air -- Upflow Applications Return air can be brought in through the bottom or either side of the furnace installed in an upflow application. If the furnace is installed on a platform with bottom return, make an airtight seal between the bottom of the furnace and the platform to ensure that the furnace operates properly and safely.
Removing the Bottom Panel Remove the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel. Once the bottom panel has been removed, reinstall the bottom cap, See figure 9.
This furnace may be installed in either anatticora crawl- space. Either suspend the furnace from roof rafters or floor joists, as shown infigure 12, or install the furnace on a platform, as shown in figure 13. The unitmust be sup- ported at both ends andbeneath the blower deck to pre- vent sagging.
This unit is not equipped with a filter or rack. A field-pro- vided high-velocity filter is required for the unit to operate properly. Table 1 lists recommended filter sizes.
Use sheet metal shears to remove the cut out from the side of the cabinet. Use the two provided sheet metal screws to install the cutout on the top cap to cover the original flue outlet opening.
Common Venting Using Tile-Lined Interior Masonry Chimne MINIMUM LENGTH = AS SHORT AS PRACTICAL. FOR MAXIMUM LENGTH SEE NOTE TO LEFT NOTE- Refer to provided venting tables for installations in the USA and the venting tables in current CSA B149 for installations in Canada.
5 - The entire length of single wall metal vent connector shall be readily accessible for inspection, cleaning, and replacement. 6 - Single appliance venting configurations with zero lat- eral lengths (tables 3 and4) areassumed to have no elbows in the vent system.
TABLE 3 Capacity of Type B Double-Wall Vents with Type B Double-Wall Connectors Serving a Single Category I Appliance Vent and Connector Diameter - D (inches) Height Lateral 3 Inch 4 Inch 5 Inch 6 Inc.
TABLE 4 Capacity of Type B Double-Wall Vents with Single-Wall Metal Connectors Serving a Single Category I Appliance Vent and Connector Diameter - D (inches) Height Lateral 3 Inch 4 Inch 5 Inch 6 Inch.
TABLE 5 Vent Connector Capacity Type B Double-Wall Vents with Type B Double-Wall Connectors Serving Two or More Category I Appliances Vent and Connector Diameter - D (inches) Vent Connector Height Ris.
TABLE 7 Vent Connector Capacity Type B Double-Wall Vents with Single-Wall Metal Connectors Serving Two or More Category I Appliances Vent and Connector Diameter - D (inches) Vent Connector Height Rise.
Resize the common venting system to the minimum vent pipe size determined by using the appropriate tables in appendix G. (These are in the current stan- dards of the National Fuel Gas Code ANSI Z223.
MANUAL MAIN SHUT-OFF VALVE (With 1/8 in. NPT Plugged Tap Shown) GROUND JOINT UNION Left Side Piping (Standard) AUTOMATIC GAS VALVE (with manual shut-off valve / AUTOMATIC MANUAL GAS VALVE (with manual VALVE shut-off valve) (With 1/8 in.
INTERIOR MAKE-UP BOX INSTALLATION MAKE-UP Left side / BOX _ ° FIGURE 22 Refer to figure 24 for field wiring and figure 26 for schematic wiring diagram and troubleshooting.
TYPICAL G50UH(X) FIELD WIRING DIAGRAM WARNING- ELECTRIC SHOCK HAZARD,CAN CAUSE INJURY OR DEATH.UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES, IF ANY WIRE IN THIS APPLIANCE IS REPLACED, IT MUST BE REPLACED WITH WIRE OF LIKE SIZE, RATING,INSULATION THICKNESS AND TERMINATION.
G5OUH(X) Schematic Wiring Diagram 120V ADO /_ SIS BLOWER SPEED CHART L_ OR SlO COMBUSTION AIR FACTORY CONNECTED SPEED TAPS MOTOR SECONDARY PROVING SWITCH SREE_ K43 ECON PRIMARY GAS UNIT COOL HEAT FAN PARK PARK AVAIL, L_DTS (IF USED) LIMIT COMBUSTION AIR _ 24A-045 fELLOW RED .
FOR YOUR SAFETY READ BEFORE LIGHTING AWARNING AWARNING ACAUTION BEFORE LIGHTING smell all 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. The gas valve on the G50UH(X) unit may be equipped with either a gas control knob or gas control lever.
8 - Honeywell VR8205 Gas Valve with ON/OFF Switch - Move gas valve switch to ON. See figure 27. Honeywell VR8205 Gas Valve with Control Knob - Turn knob on gas valve counterclockwise _ to ON, Do not force.
ral gas atall altitudes is 3.5" w.c. Manifold pressure for all units fueled by L.R/propane gas at all altitudes is 10.0" w,c. See figures 27, 28and 29 forthe location of the manifold pressur.
Flue And Chimney 1 - Check flue pipe, chimney and all connections fortight- ness and to make sure thereisno blockage, 2 - Check unit for proper draft, 3 - Is pressure switch closed? Obstructed flue will cause unit toshut off at pressure switch, Check flue and outlet for blockages.
4 - Remove the collector boxlocated behind the combus- tion air inducer. Be careful with the collector boxgas- ket. If the gasket is damaged, it must be replaced to prevent leakage, 5 - Label the wires from gas valve androllout switches, then disconnect them.
The following repair parts are available through Lennox dealers. When ordering parts, include the complete furnace model number listed on theCSA International nameplate -- Example: G50UH(X)-24A-045-8,.
SURELIGHT ® CONTROL HEATING SEQUENCE OF OPERATION NORMAL HEATING MODE ABNORMAL HEATING MODE I POWER ON ] I GAS VALVE OFF. COMBUSTION AIR INDUCER ON. _' I INDOOR BLOWER ON. CONTROL SELF-CHECK OKAY'_ I,_ _ LED #1 ALTERNATING FAST FLASH I " ; NO | LED#2 ALTERNATING FAST FLASH I | CHECK FOR BROKEN IGNITOR OR -I GAS VALVE OFF.
NORMAL HEATING MODE 15-SECOND COMBUSTION AIR INDUCER PREPURGE 9 N T ATED BY CLOSED PRESSURE SW TCH. YES _ I IGNITOR WARM-UP -- 20 SECONDS. YES I 4-SECOND TRIAL FOR IGNITION. GAS VALVE OPENS, IGNITOR ENERGIZED FOR UP TO 4 SECONDS, YES I FLAME STABILIZATION PERIOD.
SURELIGHT®CONTROL COOLING SEQUENCE OF OPERATION NORMALCOOLING MODE ABNORMALCOOLING MODE I POWER ON l I IGNITION CONTROL MA, N POWER ON I I CO.T O S O,A .OS ,OO. OK IS CONTROL OPERATING NORMALLY? GAS VALVE OFF, COMBUSTION AIR INDUCER OFR INDOOR BLOWER OFF WITH NORMAL DELAY.
I SURELIGHT ® CONTROL CONTINUOUS FAN SEQUENCE OF OPERATION I ! LED: SLOW FLASH RATE REMAINS I I UNCHANGED THROUGHOUT SEQUENCE. MANUAL FAN SELECTION MADE AT THERMOSTAT. CONTROL (G) ENERGIZES INDOOR BLOWER AT FAN SPEED. EAC TERM. IS ENERGIZED. / THERMOSTAT CALLS FOR HEAT (W).
Job Name Job Location Job No. City Date State Installer Unit Model No. Serial No. Heating Section Electrical Connections Tight? Supply Voltage Blower Motor Amps [] Fuel Type: Natural Gas? Furnace BtuInput City Technician State [] [] Blower Motor H.
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