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

Models: Lennox Merit Series Gas Furnace Upflow/Horizontal air discharge ML180UHE

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