W415-1013 / C / 11.19.13
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EN
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SEASONAL
DAMPER
LOCATION
SUPPLY
PLENUM
BYPASS
PLENUM
EVAPORATOR
COIL POSTION
SEASONAL DAMPER
LOCATION
HMFK-BMP50 BLOWER
MODULE OR HMFK-GT
TRANSITION KIT (HMFK-
GT WITH NPV060 GAS
FURNACE SHOWN)
EXAMPLE OF AN
ACCEPTABLE
BYPASS DESIGN
RETURN
PLENUM
DAMPER ORIENTATION “WINTER MODE”
All three dampers are in the horizontal position
blocking air
fl
ow through the bypass plenum and
forcing air through the furnace loop.
DAMPER ORIENTATION “SUMMER MODE”
All three dampers are in the vertical position blocking
air
fl
ow on both the return and the supply ends of the
wood furnace, forcing air
fl
ow through the air condi-
tioning evaporator coil.
6.7.1 SEASONAL DAMPER POSITIONS
