Lennox International Inc G50UH-36B-090 For Your Safety Read Before Lighting, Manifold

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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. Use only your hand to push the lever or to tum the gas control knob. Never use tools, If the knob will not turn or if the lever will not move by hand, do not try to repair it. Call a qualified service tech- nician, Force or attempted repair may result in a fire or ex- plosion,

Placing the furnace into operation:

G50UH(X) units are equipped with a SureLight ® ignition system. Do not attempt to manually light burners on these furnaces, Each time the thermostat calls for heat, the burners will automatically light. The ignitor does not get hot when there is no call for heat on units with SureLight ® ignition system,

AWARNING

Gas Valve Operation (Figures 27, 28 and 29)

1 - STOP! Read the safety information at the beginning of this section,

2 - Set the thermostat to the lowest setting,

3 - Turn off all electrical power to the unit,

4 - This furnace is equipped with an ignition device which automatically lights the burners, Do not try to light the burners by hand,

5 - Remove the upper access panel,

6 - Honeywell VR8205 Gas Valve with ON/OFF Switch

-Move gas valve switch to OFF, See figure 27. Honeywell VR8205 Gas Valve with Control Knob - Turn knob on gas valve clockwise 41_ to OFF. Do not

force, See figure 28,

White Rodgers 36G Gas Valve - Move gas valve switch to OFF. See figure 29,

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 the gas supplier's instruc- tions. If you do not smell gas go to next step.

Honeywell VR8205 Series Gas Valve

MANIFOLD

(With On/Off Switch)

PRESSURE

MANIFOLD

 

SCREW

PRESSURE

(under cap)

OUTLET

 

DI

GAS VALVE ON/OFF SWITCH SHOWN IN OFF POSITION

FIGURE 27

Honeywell VR8205 Series Gas Valve

with Gas Control

 

Knob

MANIFOLD

 

MANIFOLD

PRESSURE ._

_

PRESSURE

ADJUSTMENT"'_'___,_, r

I h _'_'l_, OUTLET

SCREW _

GAS VALVE SHOWN IN OFF POSITION

FIGURE 28

White Rodgers 36G Series Gas Valve

MANIFOLD PRESSURE ADJUSTMENT SCREW (Undercover

SCOW)

PRESSURE

POST

GAS VALVE SHOWN IN OFF POSITION

FIGURE 29

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Contents G50UHX Series Supply AIR FlueBoxGasket HeatExchanger FlueCollectorBox Gasket FlueTransitionPackage 1 of 1 contains Wheninstalled,thisfurnacemustbeelectricallygrounded Acaution Canada,referto the standardCSAB149installation codesAir from Inside WiTER/ RoomEquipment in Confined Space ALL AIR from Outside Mm at unit front. The unit must be levelSide View Front View 27-5/8Removingthe Bottom Panel Leveling Bolt Installation Inches mmRemoving the Bottom Panel Leveling an Upflow UnitHorizontal Application Unit Installed on Platform Supply Air Plenum Filter SizeCombustion Air Inducer HoleOutletopeningSeefigure15 Venting Using a Masonry ChimneyThelatesteditionof NationalFuelGasCodeNFPA54 Vent ConnectionCombined Vent Connector Common Venting Using Tile-Lined Interior Masonry ChimneSingle appliance Minimum Vent capacityMaximum Horizontal Inches mm MIN MAX Serving a Single Category I Appliance Serving Two or More Category I Appliances Type B Double-WallVents with Type B Double-Wall ConnectorsRemoval of the Furnace from Common Vent VentGas Pipe Capacity ft3/hr m3/hr PropaneInstallationCodesinCanadaInterior MAKE-UP BOX Installation Precautions and ProceduresLeak Check Electrostatic Discharge ESDINTERIORMAKE-UP BOX Installation PowER @1HsuN,TZk for Correct Number of Secondary Typical G50UHX Field Wiring DiagramSot G5OUHXManifold For Your Safety Read Before LightingRevolution Honeywell VR8205 Gas Valve with ON/OFF SwitchPrimary and Secondary Limits Checkunitforproperdraft FlueAnd ChimneyG50UHX Burner & Heat Exchanger Removal Ak Caution Diagnostic Surelight Control Normal Heating Mode Abnormal Heating ModeYESl =-lYESl Normalcooling Mode Abnormalcooling ModeYEs FurnaceBtuInput BlowerMotorAmps

G50UH-60D-155, G50UH-36B-090, G50UH-36A-070, G50UH-24A-045, G50UH-60D-135 specifications

Lennox International Inc is renowned for its high-quality heating, ventilation, and air conditioning (HVAC) solutions. Among its versatile product lineup are the G50UH series of gas furnaces, which exemplify efficiency and performance. These models, specifically the G50UH-24A-070, G50UH-24A-045, G50UH-36B-090, G50UH-36A-070, and G50UH-48C-135, offer a range of features tailored to meet varying residential heating demands.

One of the key features of the G50UH series is its energy efficiency. Many models in this lineup boast an impressive Annual Fuel Utilization Efficiency (AFUE) rating, which indicates their ability to convert fuel into usable heat efficiently. These high AFUE ratings can lead to significant savings on energy bills, making these furnaces a cost-effective choice for homeowners.

The G50UH series incorporates advanced technology, including multi-speed blowers that enhance comfort levels. This feature allows for better airflow control and can help maintain consistent temperatures throughout the home. The controlled airflow reduces temperature swings and ensures that every room benefits from the heating provided by the furnace.

Safety is paramount in Lennox designs, and the G50UH series is no exception. Each unit is equipped with safety features designed to protect both the furnace and the home. Dual certification ensures that the products meet stringent safety standards. Moreover, features like a self-diagnostic control board streamline maintenance, allowing homeowners to easily identify potential issues.

Another important characteristic of the G50UH series is its compact design, which is beneficial for homes with limited space. The units are designed to fit comfortably in various installation environments, from basements to utility rooms.

Durability is another hallmark of the G50UH furnaces. Constructed with quality materials, these units are designed for long-term reliability. This ensures that homeowners can enjoy the comfort of their heating systems without frequent repairs.

Lastly, Lennox provides extensive support and warranties, giving homeowners peace of mind associated with their purchase. With options tailored to meet diverse home heating needs, the Lennox G50UH series stands out in the HVAC market, combining efficiency, safety, and reliability in one impressive package.
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