Vent Termination; Two Pipe Roof And Sidewall Vent Terminations - American Standard TCWH-199-AS Installation Start-Up Maintenance Parts

TANKLESS WATER HEATER
E. VENT TERMINATION

1. Two Pipe Roof and Sidewall Vent Terminations

TWO PIPE SIDEWALL VENTING WITH TEE (INTAKE)
INSERT INLET/EXAHUST
INSERT INLET/EXAHUST
SCREEN INTO
STRAIGHT COUPLING
EXHAUST
MAINTAIN 12" MINIMUM
CLEARANCE ABOVE HIGHEST
ANTICIPATED SNOW LEVEL
OR GRADE, WHICHEVER IS
GREATER (TYP)
Figure 8 – Direct Vent, Roof and Sidewall Vent Terminations
WARNING
must be within 1 foot of the appliance and the balance at 4 foot intervals on the vent pipe. Appliance
venting must be readily accessible for visual inspection for the first three feet from the appliance.
26
AND COUPLING (EXHAUST)
SCREENS INTO
EACH END OF TEE
EXTERIOR WALL
1" MIN.
12" MIN.
INTAKE
All vent pipes must be glued, properly supported, and the exhaust must be
pitched a minimum of ¼" per foot back to the appliance to allow drainage of
condensate. When placing support brackets on vent piping, the first bracket
TWO PIPE ROOF VENTING WITH TEE (INTAKE)
AND COUPLING (EXHAUST)
STRAIGHT
24" MIN.
COUPLING
EXHAUST
VENT
RIGHT SIDE VIEW
INTAKE AIR VENT
INSERT INLET/EXAHUST
SCREEN INTO
STRAIGHT COUPLING
INSERT INLET/EXHAUST
SCREENS INTO
EACH END OF TEE
TEE
12" OVER MAXIMUM
SNOW LEVEL OR 24"
WHICHEVER IS GREATER