20
Du
cti
ng
DUCTING
!
WARNING
UPFLOW FURNACE: THE SOLID METAL BASE
PLATE (SHIPPED WITH THE FURNACE) MUST BE IN-
STALLED IN THE FURNACE BOTTOM WHEN USING
SIDE AIR RETURN. FAILURE TO INSTALL A BASE
PLATE COULD CAUSE THE PRODUCTS OF COM-
BUSTION TO CIRCULATE INTO THE LIVING SPACE
AND CREATE POTENTIAL LY HAZARDOUS CONDI-
TIONS, INCLUDING CARBON MONOXIDE POISON-
ING OR DEATH. FOR BOTTOM RETURN, A SOLID
METAL BASE PAN MUST NOT BE INSTALLED.
FIGURE 7
1
REMOVE BLOWER
DOOR AS SHOWN
RETAINING TAB
DETAIL
INSTALLATION OF SOLID METAL BASE FOR SIDE
RETURN APPLICATIONS
INTERNAL VIEW
OF BLOWER
COMPARTMENT
2
INSERT TAB ONTO
FLANGE AND PUSH
PANEL INTO PLACE
3
INSTALL SCREW IN TAB LOCATED
IN THE BLOWER COMPARTMENT
TAPE ALL EDGES OF BOTTOM
TO COVER GAPS
4
AFTER
INSTALLATION
OF BOTTOM
PLATE, SEAL ALL
SEAMS TIGHT
WITH METAL
TAPE
ST-A1194-49