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00RNO0333-B (U0625869)
EVO S -
Installation and Servicing
Single boiler
Without control of the secondary communications
networks 0...10V or LPB
Diagram
VF1
page 1 / 4
A. HYDRAULIC DIAGRAM
figure 22 -
VF1 diagram
B. REGULATION ACCESSORY REQUIRED
Quantity
Appliance reference
Order No.
Communication kit for LPB bus
(for dialogue over LPB bus)
1
OCI 345
219285
The existing regulation system controls the installation’s heating circuit.
It sends the outlet temperature set point to the boiler, either over the LPB bus through the OCI 345 interface
(SIEMENS protocol), or by a 0 - 10 V signal, sent directly to the NAVISTEM B3000.
When controlled by the external regulator, the boiler operates according to a sliding temperature scale
when it starts for the heating, according t
o the outdoor temperature.
