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Boiler Connections
Connections
(continued)
High altitudes setting
1.
Fig. 19
22
2.
Coding
card
number
In the factory default setting, the boiler
is equipped to operate in altitudes of up
to 5,000 ft. / 1,500 m. For operation
in higher altitudes, the existing coding
card must be replaced with a higher
altitude coding card. See table 2 or the
Viessmann Price List for order
information.
1.Pull out the existing coding card,
cut and remove it from the cable tie.
Insert the high altitude coding card
into the boiler control board.
2.Install cover.
Table 2. Altitude coding cards
Model Number
Model Number
(base serial #)
WB2B 45 (7374866...)
7832 267
7833 227
WB2B 60 (7374867...)
7832 268
7833 229
*1
Factory Installed
Coding card Order Number
0-5,000 ft. /
5,000-10,000 ft.
0-1,500 m
/ 1,500 - 3,000 m
*1
7425 956 or
or
*1
7424 905
*1
7425 957 or
or
*1
7424 906
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