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Siemens Building Technologies
Basic Documentation RVA47.320
CE1P2379E
HVAC Products
Summary
15.07.2002
1 Summary
1.1 Brief
description
ALBATROS™- RVA47.320 (B-series) is designed for use as a single-boiler controller or
cascade controller with up to 12 heat sources.
It is designed for integration in heat generating equipment / plants with
•
a modulating gas burner
•
a Boiler Management Unit (BMU)
•
d.h.w. heating with charging pump (via RVA47) or changeover valve
(via BMU)
•
a primary or heating circuit pump
Heating circuit control uses weather compensation while d.h.w. heating operates
depending on the storage tank temperature and the time program.
When employed in an interconnected system along with the ALBATROS™ controller
RVA43.222 (C-series), it is possible to operate mixed cascades (modulating / multi-
stage) with up to 15 heat sources.
When used in connection with gas-fired heating boilers, the availability of a BMU is
mandatory. Siemens offers different types of BMUs:
- Boiler Mangement Unit LMU5/6x
It is also possible to use BMUs of other manufacture if appropriately equipped. If you
intend to use a non-Siemens burner control in connection with the RVA47.230, please
contact your nearest Siemens representative.
The range of products comprises several units that complement one another in terms of
application and scope of functions. The controllers have communication capability and
can be combined to form heating systems that include up to 40 controllers.
For more detailed information about the generation of LPB systems, refer to "Local
Process Bus (LPB), Basic Documentation, System Engineering”, document no.
CE1P2370E.
Important
Use in extensive systems
