Zephyr ZML-M90AG/AS - Manual (Page 9)

7
WARNING FIRE HAZARD
NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling, attics or garages.
All exhaust must be ducted to the outside, unless using the recirculating option.
Use single wall rigid Metal ductwork only.
Fasten all connections with sheet metal screws and tape all joints w/ certifi ed Silver Tape or Duct Tape.
Some Ducting Options
Installation –
Ducting Options
side wall cap
w/ gravity damper
Soffit or crawl space
Roof Pitch w/
Flashing & Cap
ductless
recirculating
(blower
housing)
(blower
housing)
(blower
housing)