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americanwaterheater .com 37
SOUND SUPPRESSOR
Included with this water heater is a Tee
fi
tting con
fi
gured
as a sound suppressor. Depending on the con
fi
guration
of the water heater this will be either a 2” or a 3”
fi
tting.
The sound suppressor can be
fi
tted to the venting near
the blower assembly or used as the exhaust termination
(see Figure 41 thru Figure 44).
Side Wall Vent Installation
The preferred location for the Sound Suppressor is 12”
away from the blower as shown in Figure 41 and Figure
42 and serves as the
fi
rst 90° elbow. Alternatively, it can
be used as the termination for the venting. If the Sound
Suppressor is used as the vent termination the Vent
Termination Screen (see “Vent Pipe Termination” section)
must be installed in the straight through end of the Sound
Suppressor (see Figure 43).
BLOWER
2” VENT
PIPE
AIR DUCT
ADAPTER
2” SOUND
SUPPRESSOR
CONFIGURATION FOR HEATERS CONNECTED TO 2" VENTING.
12”
PREFERRED
LENGTH
Figure 41
BLOWER
3” VENT
PIPE
AIR DUCT
ADAPTER
CONFIGURATION FOR HI-INPUT HEATERS CONNECTED TO 3” VENTING
WITH SOUND SUPPRESSION TEE FITTING.
3” SOUND
SUPPRESSOR
12”
PREFERRED
LENGTH
Figure 42
EXHAUST VENT
TERMINAL
INTAKE VENT
TERMINAL
SIDE WALL
RODENT SCREEN
(INSTALL INTO
TERMINATION)
Figure 43
Vertical Vent Installation
If the venting installation is vertical, directly from the blower
through the roof, the Sound Suppressor may be used
as the vent termination. In such an installation the Vent
Termination Screen (see “Vent Pipe Termination” section)
must be installed in the straight through end of the Sound
Suppressor (see Figure 44).
EXHAUST
VENT
TERMINAL
INTAKE
VENT
TERMINAL
SOUND
SUPPRESSOR
WITH SCREEN
Figure 44
