Mastercontrol For Two-Boiler Systems; Information On The Mastercontrol - Viessmann KOB PYROTEC Technical Manual

Control unit
(cont.)

3.5 Mastercontrol for two-boiler systems

The Mastercontrol optimises the entire heat generation of two biomass
boilers (PYROTEC dual system) incl. control of an oil, gas or electric
boiler as a redundancy and/or as a peak load boiler.
Trade name
Boiler combination
Boiler
Part no.:

Information on the Mastercontrol

Function
■ Heat management:
Optimum division of the required heating output between the two
biomass boilers with the main load on the lead boiler and the remain-
der load on the lag boiler via a defaulted output value. The defaulted
output is calculated in accordance with QM wood heating stations in
line with the required set temperature in the common low loss
header. Automatic switchover of the two boilers between the lead
boiler and the lag boiler is possible. This ensures an even boiler load
over a long operating time (e.g. weekly changeover).
■ Charging:
If fuel for the two biomass boilers is taken from a common fuel store,
charging is controlled up to fuel distribution by the Mastercontrol.
■ Operating data archiving:
Relevant operating data of the past 31 days is stored in a ring buffer
and can easily be displayed in graph form on the Mastercontrol
touch-screen.
Operation:
Operation is carried out via a 10" touch-screen integrated in the control
panel.
Standard delivery:
■ Control panel:
Surface powder coated in RAL 7035 (grey) texture. Version as per
ÖVE/VDE directives fully wired to terminal strips, fed 3 x 400 V 50
Hz; control voltage 230 V or 24 V
■ Freely programmable control unit, CE-tested, program and real time
clock are battery backed
PYROTEC
Mastercontrol for
A
Boiler 1 Boiler 2
Pyrotec Pyrotec
7387 863
■ Contactor/overload relay combinations for all common charging
drives (3 x 400 V) according to separate price items
■ Ethernet interface (network connection) on touch panel
■ Zero volt output (fault message)
■ 10" touch-screen
■ 4-pole main isolator
■ Documentation incl. fixed wiring diagram
■ Terminal connection diagram with cable designation in plan wallet
■ Cylinder management 5 sensors (QM)
■ 5 sensors PT-1000 with sensor well 1/2" x 280 mm
■ 1 weather sensor PT-1000
■ Defaulted output value for both biomass boilers for further process-
ing in the subordinate boiler control units via CAN-BUS
Note
Remote maintenance with PC or network, water-side and electrical
installation is the responsibility of the customer.
Visualisation with the touch-screen
■ Operating data archive
■ Display and archiving of the relevant
■ operating data of both wood boiler systems and the Mastercontrol
■ Easy operation of the wood boiler systems at the touch-screen of the
Mastercontrol
■ Installation scheme for heat source with display fields
■ Table of parameters (with parameter setting options)
■ Fault history
B
Boiler 1 Boiler 2
Pyrotec Pyrotec
7387 848
3
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