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Boiler Connections
Preparing the Connections
Dimensions overview without bottom connections
b
a
e
e
Connections Vitodens 100-W,
WB1A 8-24, 8-30
Legend
Boiler water supply, NPT ¾" (male
thread)
Condensate drain, plastic hose
Ø 0.87" / 22mm
Gas connection, NPT ¾" (male
thread)
Boiler water return, NPT ¾" (male
thread)
a 7" / 180 mm
b 15¾" / 400 mm
7
c 2¼" or 2
/
" / 58 mm or 62 mm
16
d 27½" / 700 mm
7
e 4
/
" / 123 mm
8
f
7¼" / 183 mm
3
g 13
/
" / 340 mm
8
h 5" / 125 mm
14
(continued)
g
f
c
d
h
Vitodens 100-W, WB1A
side view
When preparing gas, water
and electrical connections in
the field, see section entitled
"Wall Mounting" on page 16
of this manual for information
regarding the installation of
the wall mounting bracket.
IMPORTANT
The maximum ambient temperature
must not exceed 104 ºF/40 ºC.
H Heating water connections and gas
connection to be made in the field.
See illustration to the left and
connection-specific section for
details.
H See subsection entitled "Power
supply connection" for details
regarding power supply to the
Vitodens 100-W boiler.
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