ICP C8MPN - Warning; Ductwork and Filter (Downflow)

25
441 01 2611 06
Figure 23 Side Return Filter Rack
Filter
25--23--05--4a
25--23--05--3
Filter
Filter
Using Two
Filter Racks
Figure 24
Filters Installed on Two Sides
Internal Filter in Bottom-Return Installation
Wheninstalling a bottom--mountedfilter insidethefurnace,install
thefilterclipsontheedgeofthebottomductopeningwiththewider
end of the clips toward the blower, as s hown in Figure 25. Clips
may be obtained from your distributor or fabricated from sheet
metal (Figure 26). Insert filter into side clips first and push filter
back until it is fully engaged into back clip.
Center Clip
side --to -- side
Figure 25 Bottom Mounted Filter
25--24--18--1
9²
Figure 26 Filter Clip Construction
3²
1
1
/
4
²
1
1
/
2
²
11
/
16
²
26 Ga. Galvanized Steel
NOTE: If filters are only suitable for heating application, advise
homeowner that filter size may need to be increased if air condi-
tioning is added.
Addition Of Air Conditioning
Whenarefrigerationcoili susedinconjunctionwiththisfurnace,it
mustbeinstalledonthedischargesideofthefurnacetoavoidcon-
densationintheheatexchanger. Thecoil installationinstructions
must be consulted for proper coil location and installation proce-
dures. With a parallel flow arrangement, dampers must be
installedtopreventchilledairfromenteringthefurnace. Ifmanual -
ly operated dampers are used, they must be equipped with a
means to prevent operation of either unit unless the damper is in
full heat or full cool position.
Copperorplastictubingmaybeusedforthecondensatedrainline.
11. Ductwork and Filter (Downflow)
CARBON MONOXIDE POISONING HAZARD.
Failure to properly seal duct could result in death
and/or personal injury.
Do NOT draw return air from inside a closet or
utility room where furnace is located. Return air
duct MUST be sealed to furnace casing.
!
WARNING
FIRE HAZARD.
Failure to connect the return air duct to the top of a
downdlow furnace could result in death, bodily
injury, and/or property d amage.
Side return air duct(s) may cause excessive furnace
and/orairtemperatures,whichcouldresult indeath,
bodily injury, and/or property damage.
Return air duct is to be connected to only the top of
downflow furnace.
!
W
A
RNING