Lennox MERIT ML193UH Installation Instructions Manual page 37

Left Side Piping
(Standard)
MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
Horizontal Application
Right−Side Air Discharge
Gas Valve
Plug
AUTOMATIC
GAS VALVE
(with manual
shut−off valve)
Plug
Gas Valve
Bellows Grommet
PROVIDED
AND INSTALLED
NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET
FIGURE 63
Horizontal Applications
Possible Gas Piping Configurations
Bellows Grommet
PROVIDED
AND INSTALLED
NOTE − BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET
FIGURE 64
Page 37
Right Side Piping
Plug
FIELD
MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
Bellows Grommet
FIELD
(Alternate)
Bellows Grommet
MANUAL
MAIN SHUT−OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
Gas Valve
Horizontal Application
Left−Side Air Discharge
Bellows Grommet
Gas Valve
MANUAL
MAIN SHUT−OFF
GROUND
JOINT
UNION
DRIP LEG
VALVE