Viessmann VITODENS 200-W WB2B 105, Start-Up/Service Instructions

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Coding Coding
50
Coding Level 2
(continued)
Resetting coding addresses to the factory default setting
1. Press “
w
“ + “
r r r rw
“
simultaneously for approx. 2 sec.
2.
Press
“ ”.
“
Factory set? Yes
”
appears.
3. Press “ ” to confirm.
or
4. “ ⊕ / “ to select “ Factory set?
No ”.
Service Level Overview
Function Key combination Exit Page
Temperatures, boiler coding
card and brief scans Press “
9
“ and “
r r r rw
“
simultaneously for approx.
2 sec.
Press
51
Relay test Press “
9
“ and “ “
simultaneously for approx.
2 sec.
Press
52
Max. output (heating mode) Press “
9
“ and “
t
t t
tw
w w
w
“
simultaneously for approx.
2 sec.
Press
17
Operating conditions and
sensors Press “
i
“.
Press
53
Service scan Press “
i
“ (if ”Service”
flashes).
Press
36
Adjusting the display contrast Press “ “and ” ⊕ ”
simultaneously; the display
darkens.
--
--
Press “ “and ” ”
simultaneously; the display
becomes lighter.
--
--
Retrieving an acknowledged
fault message Press “ “
for approx.
3 sec.
55
Fault history
Press “ “ and
“
r r r rw “
simultaneously for approx.
2 sec.
Press
55
Participant check (in
conjunction with LON) Press “ “ and “
w
“
simultaneously for approx.
2 sec.
Press “ “and “
w
“
simultaneously.
35
Emissions test function
”
”
Press “
tw
” and “
tm
”
for approx. 2 sec.
simultaneously.
Press “ tw ” and “ tm ” or
“
tr
” and “
tw
”
simultaneously for approx.
1 sec, alternatively
automatic after 30 min.
--
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