M-Line Blower Manual

Page 7
Maintenance/Troubleshooting (Continued)
Is the hood ducted properly?
Theductshouldbesmoothwalled.Corrugatedor“ex”typeduct
mustnotbeusedasitrestrictsairow.Theductworkshouldbethe
same square inch area (or larger) as the hood discharge for the
entire length of the duct run. Run the duct as short and straight as
possible.Enlargetheductforlongerductruns.Maintain4to5foot
spacing between turns. Turns should be smooth and gradual, not
sharp and angled. Roof jack and wall louver openings must be free
of obstacles, at least as large as the duct size, and open freely.
Is the hood mounted at the appropriate height o󰀨 of the cooking
surface?
Theheightofthehoodo󰀨thecookingsurfaceisveryimportant.The
higherthehoodismounted,thelesse󰀨ectiveitwillbe.Hoodsonly
collect cooking vapors; they will not pull cooking contaminants back
into the hood if they escape into the kitchen. Generally speaking,
the deeper the hood, the higher the hood can hang and still be
e󰀨ective.
WallMount 30”
StandardLiner-MSLD 24-27”
ProLiner-MPSLD 27-30”
NOTE: If smoke still enters the kitchen after following these
suggestions, contact your dealer for additional service and/or
suggestions.