Robur Direct Digital Controller, Installation, Use And Programming Manual

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Direct Digital Controller
6
Direct Digital Controller fw 4.013 – Ed. 01/2013
Control of plant with third party boilers and/or chillers
Using the optional device RB200, the DDC can also control plants which include not only Robur units, but also
third party generators (boilers and/or chillers). The RB200 is used to interface these generators through
specific input and output signals; at this point, the DDC can control the system by switching on or off all the
available units, including third party ones.
NOTE : these functions are not available on the RB100.
Control of other plant parts
Again thanks to the use of the optional RB200, the DDC can control the operation of different types of water
pump needed to implement different plant layouts, as well as acquire the temperature of the manifolds on the
different branches of the plant through temperature probes connected to the RB200. The use of manifold
probes makes the system configurations supported by the control system more flexible.
NOTE : these functions are not available on the RB100.
Control system expandability using RB200 devices
When one or more RB200 devices are added to a system comprising DDCs and Robur heating or chilling
modules, the following rules apply:
1. On any system, also with maximum expansion (three DDCs, 48 heating modules and 48 chilling
modules) it is possible to add an RB200 device used fully, i.e.:
•
with the heating, cooling and DHW requests enabled
•
with all water pump, temperature probe and valve services enabled
•
with both the third party generator service enabled; however it must be considered that every
third party generator occupies a heating or chilling module, which must therefore be included
in the calculation of the total number of modules
2. It is also possible to add up to seven more RB200 devices, used only to manage other third party
generators, again considering that every generator occupies a heating or chilling module, to be
included in the calculation of the total.
For further information concerning:
•
Domestic hot water (DHW) production plant control
•
Control of alternate hot/cold 2 line production plant with generation side or 4-line user side manifolds
•
Control of plant with third party boilers and/or chillers
•
Control of other plant parts
•
Control system expandability using RB100 or RB200 devices
•
Installation and use of RB100 or RB200 devices
Please consult the installation and user booklet of the RB 100 (code D-LBR468) and the RB 100
applications booklet (code D-LBR467), or RB 200 device (code D-LBR632) and the Applications Manual
(code D-LBR630), according to the type of device used.
NOTE