Lenox ML180UHE Horizontal Application, Left−Side Air Discharge, Right−Side Air Discharge

Page 24

 

Left Side Piping

 

 

MANUAL

 

(Standard)

 

 

 

 

AUTOMATIC

MAIN SHUT−OFF

 

 

 

MANUAL

 

 

VALVE

 

 

GAS VALVE

MAIN SHUT−OFF

 

 

(With 1/8 in. NPT

 

AUTOMATIC

 

VALVE

 

 

Plugged Tap

 

GAS VALVE

 

(With 1/8 in. NPT

 

 

Shown)

 

 

 

Plugged Tap Shown)

 

 

 

GROUND

 

 

 

 

JOINT

 

 

 

 

UNION

GROUND

 

 

 

 

JOINT

 

 

 

 

UNION

 

 

 

DRIP LEG

 

 

 

 

 

FIELD

Right Side Piping

 

(Alternate)

 

PROVIDED

DRIP LEG

AND INSTALLED

 

NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET

FIGURE 26

Horizontal Applications

Possible Gas Piping Configurations

 

MANUAL

 

MAIN SHUT−OFF

 

VALVE

MANUAL

 

MAIN SHUT−OFF

Horizontal Application

VALVE

Left−Side Air Discharge

 

 

GROUND

 

JOINT

 

UNION

GROUND

 

JOINT

DRIP LEG

UNION

 

DRIP LEG

 

 

 

MANUAL

 

 

MAIN SHUT−OFF

 

 

VALVE

 

 

GROUND

 

 

JOINT

 

FIELD

UNION

 

 

 

PROVIDED

 

Horizontal Application

AND INSTALLED

 

 

 

Right−Side Air Discharge

NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET

DRIP LEG

FIGURE 27

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Image 24
Contents Installation Instructions ML180UHE Table of ContentsUnit Dimensions − inches mm TOP ViewParts Arrangement Make−Up Box Heat Exchanger Combustion Air InducerBurner Box Gas ValveSafety Information ML180UHE Gas FurnaceShipping and Packing List Use of Furnace as Construction Heater GeneralCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from Inside Equipment in Confined Space Setting Equipment Return Air Horizontal Application Installation Clearances Top Left RightEnd Bottom Typical Horizontal ApplicationFilters Duct SystemVenting Upflow PositionTop Vent Discharge Left Side Vent DischargeHorizontal Left Position Horizontal Right Position Horizontal Left PositionSide Vent Discharge Side Vent Discharge − no modifications necessaryVent Connection Upflow and Horizontal Position Common Venting Using Metal−Lined Masonry Chimney −1/2 Cated or common venting system, you must inspect 18 − The common vent diameter must always be at least asFeet FAN + FAN FAN + NAT 130 Carbon Monoxide Poisoning Hazard Ers or straps. Install a drip leg in vertical pipe runs to − In some localities, codes may require the installationGas Piping Gas supply piping should not allow more than 0.5W.C. dropHorizontal Application Left−Side Air DischargeRight−Side Air Discharge Interior MAKE−UP BOX Installation ElectricalElectrostatic Discharge ESD Thermostat Designations ML180UHE Schematic Wiring Diagram and Sequence of Operation Typical ML180UHE Field Wiring Diagram Integrated ControlFor Your Safety Read Before Lighting Unit Start−UpGas Pressure Adjustment GAS Meter Clocking ChartProper Combustion High AltitudeOther Unit Adjustments Manifold Pressure Settings at all AltitudesHeat FAN-OFF Time in Seconds No Jumper1380 995975 115 945 1345Single Side Return Air − Air volumes in bold require field Order to maintain proper air velocity640 1940 420 1750 310 230Service Electrical SHOCK, Fire Or Explosion HazardML180UHE BURNER, Combustion AIR Inducer Assembly Heat Exchanger Removal−090, −110 −135 units −045 and −070 unitsPlanned Service Repair Parts ListIntegrated Control Diagnostic Codes RED LEDNormal Heating Mode Abnormal Heating Mode Heating Sequence of OperationHeating Sequence Normal Cooling Mode Abnormal Cooling Mode Cooling Sequence of OperationContinuous FAN Sequence of Operation Start−Up & Performance Check List Cooling Mode Temperature RiseUnit Operation Drain Line

Lennox Merit Series Gas Furnace Upflow/Horizontal air discharge, ML180UHE specifications

The Lenox ML180UHE is a reliable and efficient gas furnace that falls within the Lennox Merit Series. This model is designed for upflow or horizontal air discharge, making it versatile for various installation requirements. With its robust construction and advanced technology, the ML180UHE is ideal for homeowners seeking a dependable heating solution that combines comfort and efficiency.

One of the main features of the ML180UHE is its impressive 80% Annual Fuel Utilization Efficiency (AFUE) rating. This efficiency means that 80 cents of every dollar spent on fuel is used to heat your home while minimizing waste. This furnace is equipped with a multi-speed blower motor that enhances the overall air circulation in your home, providing consistent temperatures and improved comfort.

The ML180UHE features a durable heat exchanger made of high-quality materials, which ensures longevity and reliable performance. The design of the heat exchanger maximizes heat transfer efficiency, allowing the furnace to quickly warm your home while also maintaining optimal efficiency levels throughout its lifespan.

Lennox has integrated advanced technologies into the ML180UHE to enhance its operation and user experience. The unit is compatible with a variety of thermostats, including Lennox's innovative iComfort S30 Smart Thermostat, allowing for easy temperature control and programming capabilities. This smart technology can learn your preferences, optimize energy usage, and enable remote access through a smartphone app.

In addition to its energy efficiency, the ML180UHE offers quiet operation, making it an excellent choice for residential environments. The well-insulated cabinet helps to reduce noise levels, providing a peaceful indoor atmosphere.

Installation and maintenance are simplified with the ML180UHE due to its compact design and accessible components. The furnace is designed to fit into tight spaces, allowing for flexible installation options. Regular maintenance is uncomplicated, ensuring that homeowners can keep the unit running at peak performance with minimal effort.

Overall, the Lennox ML180UHE gas furnace provides users with a reliable, efficient, and quiet heating solution. With its combination of advanced technology, durable design, and ease of use, it is an excellent choice for anyone looking to enhance the comfort of their home while optimizing energy consumption.