Bradford-White Corp ULTRA HIGH EFFICIENCY COMMERCIAL GAS WATER HEATER ユーザーズマニュアル
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It is acceptable to install a 90 degree elbow on IPEX concentric vent terminations use with this power direct
vent water heater (see Figure 23b). A short length of appropriate diameter vent pipe should be used to
transition from the vent terminal to the 90 degree elbow. Approved venting materials along with primers and
cements are listed at the beginning of this venting section. When the 90 degree elbow is used the equivalent
length of the elbow and short length of vent pipe must be factored into the total vent/air intake pipe
determinations (see Tables 3 and 4 for appropriate vent connector lengths).
vent water heater (see Figure 23b). A short length of appropriate diameter vent pipe should be used to
transition from the vent terminal to the 90 degree elbow. Approved venting materials along with primers and
cements are listed at the beginning of this venting section. When the 90 degree elbow is used the equivalent
length of the elbow and short length of vent pipe must be factored into the total vent/air intake pipe
determinations (see Tables 3 and 4 for appropriate vent connector lengths).
WARNING! DO NOT
USE 2” VENT WITH
EF100T250/300
MODELS
USE 2” VENT WITH
EF100T250/300
MODELS
Figure 23B
VENT PIPE PREPARATION
WARNING
DO NOT attempt to start this water heater until vent pipe solvent fumes completely clear from the room and inside the
vent piping.
vent piping.
(A) VENT DIAMETER
(B) DIMENSION
MIN
MAX
2” (5.1 CM)
12” (30.5 CM)
40” (101.6 CM)
3” (7.6 CM)
12” (30.5 CM)
44” (111.8 CM)