Burner Adjustment When Connecting Multiple Flues To A Flue System - Viessmann Vitodens 050-W BP JD Installation And Service Instructions Manual

Further details regarding the individual steps
Room sealed operation 7 60 mm coaxial
Correction fac-
tor
Rated heating
output (kW)
24
33
Burner adjustment when connecting multiple flues to a flue sys-
tem
When connecting several
Vitodens 050-W to a shared flue system:
Adjust the burner setting of each con-
nected boiler by a correction factor to
match the flue system.
System conditions:
■ Shared flue in shaft 7 100 mm
■ Balanced flue connection pipe from
boiler to shaft 7 80/125 mm
■ Minimum shaft cross-section
– Square 175 x 175 mm
– Round 7 195 mm
■ Height between floors min. 2.5 m
■ Max. 4 boilers with the same rated
heating output connected to the flue
system
1. Press MODE and
for 3 s.
"SERV" is displayed and "I"
flashes.
Commissioning, inspection, maintenance
0 1
Flue length (m)
≤ 4 > 4 ≤ 8 > 8 ≤
12
≤ 4 > 4 ≤ 7 > 7 ≤
11
simultaneously
(cont.)
2 3 4
> 12 ≤ Do not adjust
15
> 11 ≤ Do not adjust
20
2. Use / to select "4" and confirm with
OK.
"0" flashes on the display.
3. Look up the required correction factor
relevant to the flue system require-
ments in the tables below.
4. Use / to set the required correction
factor and confirm with OK.
5. Press MODE and
for 3 s.
Service mode is terminated. Service
mode also terminates automatically
after 30 min.
5 6
simultaneously
31