Operating instructions

➤
8227N045A
51
17
9
9
9
52
11
3
2
4
22
1
50
18
9
16
21
50Hz
230V
7
9
27
7
9
9
9
9
9
28
29
27
27
32
31
30
33
24
25
26
4.3 Examples of installation
The following examples do not intend to cover all the
possible cases of installation. They are only provided
to draw attention to the basic rules which must be res-
pected. Some control and safety devices have been
represented, but it is finally up to the fitter to decide whi-
ch control and safety systems are required for each spe-
cific situation. In any case, comply with applicable codes
of practice and local or national regulations.
*
1 Heating flow
2 Heating return
3 3-bar safety valve
4 Pressure gauge
7 Automatic bleeder valve
9 Valve
10 3-way mixing valve
11 Heating pump
16 Expansion vessel
17 Draining tap
18 Heating circuit filling valve
21 Outside temperature sensor
22 Boiler sensor
23 Mixing valve outlet
temperature sensor
24 Primary input of dhw
calorifier exchanger
25 Primary output of dhw
calorifier exchanger
26 Domestic hot water
filling pump
27 Nonreturn valve
28 Domestic cold water inlet
29 Pressure reducer
30 Sealed safety device
calibrated to 7 bar
31 Independent dhw tank
32 (Optional) dhw looping pump
33 Dhw temperature sensor
44 Limiting thermostat
50 Disconnector
51 Thermostatic valve
52 Differential valve
65 Heating circuit which may be
at a low temperature
(radiators or floor heating)
72 Hydraulic bypass required
with floor heating systems
2. Installation with 1 circuit with mixing valve
17
16
3
2
4
21
50Hz
230V
1
7
22
50
18
9
9
27
51
9
9
10
9
23
72
7
9
9
9
9
9
28
29
27
27
25
24
32
31
30
33
26
M
11
22
5
4
3
6
7
8
9
6,5 AT
°C
30
AUTO
TEST STB
R
°C
60
50
0,5
1,0
1,5
2,5
3,5
3
14
1
1...7
Prog
332 DB
12
-+
234567
20
26
20
14
8
2
40
30
20
80
0,5
1,0
1,5
2,5
3,5
3
2
R
°C
60
50
0,5
1,0
1,5
2,5
3,5
3
14
1
1...7
Prog
332 DB
12
-+
234567
20
26
20
14
8
2
40
30
20
80
0,5
1,0
1,5
2,5
3,5
3
2
8227N047A
9
Boiler must not be installed on a combustible
flooring or pad, do not install on carpet.
Standard DR 90 control panel heating only
Option - MB1 A for DHW production
Option - SV-matic 321 DHW & outdoor sensor
Option - SV-matic 331 DHW & 3-way valve - Outdoor sensor