5
Installation Examples
UPFLOW FURNACE/AIR HANDLER
(Bottom Return Air)
DOWNFLOW FURNACE/AIR HANDLER
UPFLOW FURNACE
(Side Return Air − up to 4 ton)
UPFLOW FURNACE
(Option 1 − Side Return Air − 5 ton)
(With Optional RAB Return Air Base)
UPFLOW FURNACE
(Option 2 − Side Return Air − 5 ton)
(Modified Return Air Opening)
RETURN DUCT
SUPPLY DUCT
DUCT TRANSIITON
(Field Furnished)
FURNACE OR
AIR HANDLER
PCO3S
RETURN
DUCT
SUPPLY
DUCT
OPTIONAL
RAB RETURN
AIR BASE
PCO3S
RETURN
DUCT
SUPPLY
DUCT
PCO3S
RETURN
DUCT
SUPPLY
DUCT
PCO3S
RETURN
DUCT
SUPPLY
DUCT
PCO3S
NOTE
: Lennox badge can be rotated 180 degrees
for this application.
HORIZONTAL FURNACE/AIR HANDLER
NOTE: Lennox badge can be rotated 180 degrees
for this application.
Figure 3. Installation Examples
