Initial Start-up and Service
17
Steps
(continued)
11. Set maximum input
I
nitial start-up
H
The maximum input (or output) for
heating operation
can be limited. The
limit is set via the modulation range.
The maximum adjustable heating
input (or output) is limited upwards
by the boiler coding card.
1.
Start up boiler.
2.
Press “
9
“ and
“
t
t
t
tw
w
w
w
“ simultaneously
until a value flashes on the display
(e.g. “85”), and “
A
” and “
Max.
output
” appear. In the factory
default setting this value represents
100% of the rated input (or output).
3.
With buttons “
⊕
/
“ select the
required value in % of the rated
input (or output) as maximum input
(or output).
4.
Confirm the set value with
“
”
.
The input for DHW production can be
limited as well. To do so, change
coding address “6F” in coding level 2.
12. Check all primary and secondary circuit connections for leaks
I
nitial start-up
S
ervice
Check heating system and domestic
hot water connections (if applicable).
Ensure all connections are pressure
tight. Correct any leaks found on
fittings, pumps, valves, etc.
13. Perform combustion analysis
I
nitial start-up
S
ervice
A CO measurement (see page 24) must
be taken before and after working on gas
appliances to eliminate risks to health
and to guarantee the satisfactory condition
of the system.
Record the measured combustion
values in the sequence stated in the
Maintenance Record on page 73 in this
manual.
5
4
4
3
2
0
7
v
1
.5
IMPORTANT
