3
TABLE OF CONTENTS
Preface
6
1 General description of the boiler
7
2 Construction
8
2.1
Boiler layout
8
2.2
Operating principle
9
3 Technical data and dimensions
10
3.1
Dimensions
10
3.2
Technical data
11
3.3
General Specification
12
4 Efficiency
information
13
4.1
Annual efficiency
13
4.2
Heat to water efficiency
13
5 Application
information
13
6 Control and safety equipment
13
6.1
The control panel
13
6.1.1
General
13
6.1.2
Layout of the control panel
14
6.1.3
Combined key functions (in operating mode only)
15
6.1.4
Display of values with more than two digits
16
6.2
Flow diagram control system
17
6.3
Operating mode (
x[[
)
19
6.4
Shut-off mode (
bXX
)
19
6.5
Setting mode user level (
X[[
)
20
6.5.1
Flow temperature set point (
!
)
21
6.5.2
Pump run on time HTG (
@
)
21
6.5.3
DHW temperature set point (
3
)
22
6.5.4
Boiler control setting (
A
)
22
6.6
Setting mode service level (
X00
)
23
6.6.1
Flow temperature set point during forced part load (
$
)
25
6.6.2
High limit thermostat (
%
)
25
6.6.3
Fan speed at full load HTG (
^
)
25
6.6.4
Fan speed at part load (HTG and DHW -
&
)
25
6.6.5
Starting point modulation (
*
)
25
6.6.6
Interface selection (
(
)
26
