7
17 3"
4
8 7"
8
6 13"
16
2 1"
16
3 3"
8
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO
PREVENT MOISTURE INSIDE FURNACE
COMPARTMENT. APPLY CAULKING GENEROUSLY
AROUND PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY STRIP IS
ESSENTIAL.
OUTSIDE SKIN (PANEL)
INTAKE TUBE
VENT CAP AND
EXHAUST
DETAIL "A"
8"
2" MAXIMUM WALL THICKNESS
INTAKE TUBE
VENT CAP AND
EXHAUST TUBE
SEE DETAIL "A"
OUTSIDE SKIN (PANEL)
REMOVABLE PANEL OF
COACH WALL MUST
SEAL WATER TIGHT
FURNACE CABINET
FRONT
ELECTRICAL
CONNECTION
GAS CONNECTION
INSIDE WALL
(2) 2 3/4"
DIA. HOLES
CL
X"
INTAKE: 1/2" MINIMUM OVERLAP
EXHAUST: 1 1/4" MINIMUM OVERLAP
23 4 DIA.
23 4 DIA.
C L
LC
EXHAUST
INT
AKE
0" TO 1 1/2"
520768
520968
520551
TRAILER SKIN
VENT CAP
MOUNTING
SURFACE
NEVER INSTALL THE EXHAUST TUBE WITH LESS THAN
1 1/4" OVERLAP, OR THE INTAKE TUBE WITH LESS THAN
1/2" OVERLAP.
STANDARD VENT ASSEMBLY FURNISHED WITH ALL REAR
GAS FURNACES, EXCEPT STK NO. 2488.
SPECIAL EXTENSION TUBES, IF NEEDED, MUST BE
ORDERED SEPARATELY. EXTENSION KITS COME WITH
COMPLETE INSTALLATION INSTRUCTIONS.
1"
USE VENT SUPPLIED WITH MOST FURNACES
4 1/2" TO 7 1/2"
7 1/2" TO 9"
3" TO 4 1/2"
1 1/2" TO 3"
051447
X" DIMENSION EXTENSION TUBES KIT NO.
GAS HOOKUP
, SUPPLIED WITH STOCK NO. 2488
SF-20Q, SF-25Q, SF-30Q, SF-35Q, SF-42Q, STANDARD VENT INSTALLATION
Figure 2
Figure 3
