4.2.10 Circulating pump
ΔP Boiler resistance (mbar)
Q Flow rate (m
3
/h)
The boiler is supplied without a pump. Take the boiler resistance and
system resistance into account when selecting a pump.
See
Caution
Maximum power consumption may be 300 VA. Use an auxiliary
relay for a pump with greater power.
4.2.11 Calorifier connection
A calorifier can be connected to the boiler. Our range includes various
calorifiers.
Important
Contact us for more information.
4.2.12 Cascade system
The boiler is ideally suited for a cascade system. There are a number of
standard solutions available.
Important
Contact us for more information.
4.3
Main components
1 Air supply/flue gas discharge
2 Casing/air box
3 Interior light
4 Flow sensor
5 Adapter
6 Heat exchanger
7 Temperature sensor for heat exchanger
8 Ignition transformer
9 Inspection hatch for heat exchanger (x2)
10 Water pressure sensor
11 Return sensor
12 PC/laptop connection point
13 Control panel
14 On/off switch
15 Condensate collector
16 Air inlet silencer
17 Gas pressure measuring point
18 Control unit (CU-GH)
19 Gas valve unit
20 Venturi
21 Fan
22 Non-return valve
23 Automatic air vent
24 Flue gas measuring point
Fig.3
Water resistance
AD-0000857-02
170
300
250
200
150
100
50
0
0
1
2
3
4
5
6
7
8
9
10
6,5
[m
3
/h]
Q
T = 20 K
Fig.4
Main components
AD-0000218-01
9
8
5
6
7
2
1
4
3
10
12
13
14
11
16
17
18
19
20
21
15
24
23
22
4 Description of the product
20
7625116 - v.06 - 17102018
