Technical information

23
- While holding both keys pressed, set the t-display to 12, using the [+] or [-]-
keys and press the ‘e’-key.
- The display will flash twice confirming acceptance of the access code.
- Release the keys and c12 will dissappear from the display. You are now in the
service mode
WARNING: changing factory defaults without reference to the tables contained in this
manual may result in incorrect operation.
- To delete the service code press the ‘reset’-key once
- If no keys are pressed over a 15 minute period the service code will delete automa-
tically
Code Description Setting range Preset
Q30
$
Flow temperature set point during
forced part load
20 - 90ºC 80
%
High limit temperature set point
90 – !0 (= 110°C) )0 (=100)*
^
Fan speed at full load (HTG)
10 – 60 hundreds 48
&
Fan speed at part load (HTG and
DHW)
10 – 60 hundreds 12
*
Modulation start point ΔT (F/R)
05 - 30 ºC 25
(
Interface selection (control option)
00 internal (Chronotherm
control only)
01
01 external interface
B
DHW cut-in ΔT
10 – 05 read 1 - 5 °C
06 read 10 °C
07 read 15 °C
08 read 20 °C
05
C
Fan speed at full load (DHW)
10 – 60 hundreds 48
D
Intern May not be changed!
00
E
N/a
)0 (=100)*
F
N/a
25
G
Forced part load time after start
(HTG)
00 – 15 minutes 03
H
Fan speed at start May not be changed!
25
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