Hoval RoofVent CON-9, Design Handbook

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6 Control systems
There are basically two possibilities for controlling the RoofVent
®
LHW:
System Description
Hoval DigiNet We strongly advise that the RoofVent
®
LHW should be
controlled by Hoval DigiNet. This control system, developed
specifically for Hoval indoor climate systems, offers the
following advantages:
■ DigiNet utilises the full potential of the decentralised
systems. It controls each ventilation unit individually,
depending on local conditions.
■ DigiNet allows for maximum flexibility of operation with
respect to the control zones, unit combinations, operating
modes and operating times.
■ DigiNet regulates the air distribution and thus ensures
maximum ventilation efficiency.
■ DigiNet regulates the energy recovery output in the plate
heat exchanger.
■ The ready-to-connect units with integrated control compo-
nents are easy to plan and install.
■ Commissioning of the DigiNet is quick and easy thanks
to the plug & play components and pre-addressed control
modules.
You can find a detailed description of the Hoval DigiNet in Part
L 'Control systems' of this handbook.
Non-Hoval system RoofVent
®
LHWs can also be controlled with non-Hoval
systems. However, the non-Hoval system must take the special
features of the decentralised systems into account.
In the design for non-Hoval control, the RoofVent
®
LHW
comes only with a basic terminal box instead of the DigiUnit
terminal box. Additional information can be found in the sepa-
rate description 'Terminal box unit RoofVent
®
LHW' (available
on request).
Table B10: Control systems, RoofVent
®
LHW
RoofVent
®
LHW
Control systems