Hydraulic System Pipework For Two-Boiler System - Viessmann VITOCROSSAL 200 Type CM2 Technical Manual

Installation accessories
Heating circuit 3: 30 mbar + 22 mbar = 52 mbar (5.2 kPa)
Residual head of the individual heating circuits
With Wilo circulation pump
Heating circuit
Head of the circulation pump (adjustable)
Pressure drop, boiler circuit + heating circuit connection
Residual head (adjustable)
With Grundfos circulation pump
Heating circuit
Head of the circulation pump (adjustable)
Pressure drop, boiler circuit + heating circuit connection
Residual head (adjustable)
Vitocontrol control panel
(On request)
Control panel for regulating the heating system in conjunction with a
Divicon heating circuit distributor.
The control panel comprises all components required for the control
and monitoring of the heating system.

Hydraulic system pipework for two-boiler system

For two-boiler systems up to 622 kW with Vitocrossal 200, type CM2
1 Flow manifold and return collector
2 Motorised butterfly valves
3 Mating flanges with gaskets
Gas condensing boilers
(cont.)
mbar
kPa
mbar
kPa
mbar
kPa
mbar
kPa
mbar
kPa
mbar
kPa
1
100 to 400
10 to 40
30
3
70 to 370
7 to 37
1
100 to 400
10 to 40
30
3
70 to 370
7 to 37
The system is designed so that other equipment can be installed next
to the control equipment of 1 to 4 boilers, such as: Vitotronic 300-K
(type MW1B), Vitotronic 200-H (type HK1B or HK3B), pump control
units, measuring devices, time switches etc.
Dim. a: 35 mm (boiler clearance with fitted thermal insulation)
Rated output in kW
Single boiler Dual-boiler system
87 174
115 230
142 284
186 372
246 492
311 622
2 3
100 to 280 100 to 760
10 to 28 10 to 76
48 52
4.8 5.2
52 to 232 48 to 708
5.2 to 23.2 4.8 to 70.8
2 3
100 to 260 150 to 520
10 to 26 15 to 52
48 52
4.8 5.2
52 to 212 98 to 468
5.2 to 21.2 9.8 to 46.8
Int. dia.
DN 50/65
DN 65/80
VIESMANN
17
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