ICP C8MPN - Horizontal Venting

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6. Horizontal Venting
Category I Furnaces With External Power
Venters
InordertomaintainaCategoryIclassificationof fan--assistedfur-
naceswhenventedhorizontallywithsidewalltermination,apower
venter is REQUIRED to maintain a negative pressurein the vent-
ing system.
In the U.S.: Per the NFGC, a listed power venter may be used,
when approved by the authority having jurisdiction.
In Canada: Only power venters approved by the appliance
manufacturer and where allowed by the authority having jurisdic -
tion may be used
Pleasec onsulttheFieldsControlsCo.orTjernlundProducts,Inc.
for power venters certified for use with our furnaces.
Vent Termination
Venting Through a Non--Combustible and
Combustible Wall
Consult External Power Venter manufacturer instructions.
Selectthepowerventertomatchthe Btuhinputofthefurnacebe-
ingvented. FollowallofthePowerVentermanufacturer’sinstalla-
tion requirements included with the power venter for:
· venting installation,
· vent terminal location,
· preventing blockage by snow,
· protectingbuilding materialsfromdegradation by fluegases,
· see Figure 10 for required v ent termination.
NOTE: It is the responsibility of the installer to properly terminate
thev entandprovideadequate shielding.Thisisessentialinorder
to avoid water/ice damage to building, shrubs and walkways.