Hoval RoofVent CON-9, Design Handbook

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6 Control systems
There are basically 2 possibilities for controlling the RoofVent
®
twin heat:
System Description
Hoval DigiNet Ideally, RoofVent
®
twin heat units are controlled via the Hoval
DigiNet. This control system, developed specifically for Hoval
indoor climate systems, provides 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 design with and to 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 manual.
Non-Hoval system RoofVent
®
twin heat units can also be controlled via 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
®
twin heat
is delivered with a basic terminal box instead of the DigiUnit
terminal box. Additional information can be found in the
separate description 'Terminal box unit RoofVent
®
twin heat'
(available on request).
Table D11: Control systems for the RoofVent
®
twin heat
RoofVent
®
twin heat
Control systems