Payne PG9MAB Series A Installation Manual page 14

MANUAL
SHUTOFF
GAS VALVE
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
Fig. 11—Attic Location and Working Platform for Direct Vent Applications (All Sizes)
COMBUSTION–AIR
INTAKE
MANUAL
SHUTOFF
GAS VALVE
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
Fig. 12—Attic Location and Working Platform for Non-Direct Vent Applications (Sizes 040 through 120 Only)
COMBUSTION – AIR
INTAKE
"
3
5 ⁄
4
SEDIMENT
TRAP
CONDENSATE
TRAP
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
A 3-IN. MINIMUM CLEARANCE
TO COMBUSTION-AIR INTAKE
IS REQUIRED.
"
3
5 ⁄
4
SEDIMENT
TRAP
CONDENSATE
TRAP
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
—14—
VENT
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.
30 MIN
WORK AREA
ACCESS OPENING
FOR TRAP
DRAIN
VENT
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.
30-IN. MIN
WORK AREA
ACCESS OPENING
FOR TRAP
DRAIN
A93031
A96184