Viessmann Vitodens 100-W B1HA 26Vitodens 100-W B1HA 35Vitodens 100-W B1KA 35 Installation And Service Instructions Manual page 11

Vitodens 100-W, B1HA series & B1KA Combi Installation/Service
Boiler Dimensions
Dimensions overview without bottom piping connections
Front view
Vitodens 100-W, B1HA series and B1KA combi
Legend
A Condensate drain, plastic hose Ø 1 in. (Ø 22 mm)
B Boiler water supply, NPT ¾ in. (male thread)
C Gas connection, NPT ¾ in. (male thread)
D Boiler water return, NPT ¾ in. (male thread)
E Combustion air opening for double pipe system
F Combustion air opening for coaxial system/gas vent
adaptor
G - For B1HA series, DHW tank heating supply
NPT ¾ in. (male thread)
- For B1KA combi, DHW, NPT ½ in. (male thread)
H - For B1HA series, DHW tank heating return
NPT ¾ in. (male thread)
- For B1KA combi, DCW, NPT ½ in. (male thread)
I Opening for pressure relief valve
When preparing gas, water and electrical
connections in the field, see section entitled
"Boiler Mounting" on page 13 of this manual for
information regarding the installation of the wall
mounting bracket.
Note: The B1HA DHW supply and return connections are
supplied capped. For installations that require DHW
tank connections remove caps. For installations that
do not require DHW tank connections leave caps
installed.
Side view
Dimensions
a a in. (5 mm) - both sides of the boiler
b 15¾ in. (400 mm)
c 2f in. (68 mm)
d 27½ in. (700 mm)
e 4 7 / in. (123 mm)
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f 6 in. (150 mm)
g 15¾ in. (400 mm)
h 5 in. (125 mm)
i 9e in. (250 mm)
j 1d in. (34 mm)
k 7 7 / in. (200 mm)
8
l 3d in. (80 mm)
m 2a in. (58 mm)
IMPORTANT
The maximum ambient temperature must not exceed
104º F (40º C).
Heating water connections, DHW tank connections B

and D, DCW G / DHW H (where applicable) and
gas connection to be made in the field.
See connection-specific section for details.
See subsection entitled "Power supply connection"

for details regarding power supply to the Vitodens
100-W boiler.
Dimensions
Top view
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