Connecting Exhaust Vent And Combustion Air Intake; Exhaust Vent And Combustion Air Intake Connections - Thermo Pride CMA4-50D36N Installation And Service Manual

G. CONNECTING THE EXHAUST VENT AND COMBUSTION AIR INTAKE
Figure 6. shows the typical exhaust vent and combustion air intake connection
for CMA/CMC furnace.
Figure 6.
Models CMA and CMC have a removable top front panel that will allow for
improved access to assist installation of the exhaust vent and combustion air
intake connection to the top of the furnace. Access is gained by removal of two
screws in the upper right and left of the furnace. The top front access panel is
then removed by pulling forward. Once the vent connections are made, the top
front access panel is replace. Be sure the access panel fits the around the two
grommets that secure the vent pipes and the rear tab locks below the top rear
panel. For Energy Star models, adhesive backed aluminum tape has been
provided to seal the access panel to the furnace top to make an air tight seal at
22