Carrier Series 100 Installation, Start-Up, And Operating Instructions Manual page 12

MANUAL
SHUTOFF
GAS VALVE
Fig. 11—Attic Location and Working Platform for Direct Vent (2-Pipe) Applications--All Sizes
COMBUSTION–AIR
MANUAL
SHUTOFF
GAS VALVE
→
COMBUSTION – AIR
INTAKE
"
3
5 ⁄
4
SEDIMENT
TRAP
CONDENSATE
TRAP
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
A 3-IN. MINIMUM CLEARANCE
TO COMBUSTION-AIR INTAKE
IS REQUIRED.
INTAKE
"
3
5 ⁄
4
SEDIMENT
TRAP
CONDENSATE
TRAP
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
Fig. 12—Attic Location and Working Platform for Non-Direct
Vent (1-pipe) Applications-Sizes 040 Through 120 Only
VENT
"
30 MIN
WORK AREA
ACCESS OPENING
FOR TRAP
DRAIN
VENT
30-IN. MIN
WORK AREA
ACCESS OPENING
FOR TRAP
DRAIN
12
A 12-IN. MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT) VENT SYSTEMS
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE.
A 12-IN. MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT) VENT SYSTEMS
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE.
A93031
A96184