Renovent HR Medium/Large 2nd edition Augustus 2007
7
Operation
Chapter 4
4.4 Frost safety
The frost protection system ensures that the secondary side
of the heat exchanger (outlet side) does not freeze up by in-
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dependent on the outside air temperature and the pressure
across the heat exchanger.
4.5 Filter indication
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mation refer to sections 7.2 and 8.1.
4.6 Option pcb
The Renovent HR appliance can be equipped with an option
pcb (article code 289990).
It provides the following functions.
Input 0-10 V for a carbon dioxide sensor
When several people are present in the dwelling, more C0
2
is produced and then this sensor automatically increases the
ventilation quantity.
Input 0-10 V for a moisture sensor
When the moisture content in the dwelling increases, for in-
stance when someone is taking a shower, this sensor automa-
tically increases the ventilation quantity.
Switching input for bedroom valve.
With this input (make contact) the bedroom valve can be con-
trolled, for instance using a time switch.
Switching output for bedroom valve 24 VAC
The option pcb has a built-in control for a 24 VAC bedroom
valve. Such a valve can directly be connected to the pcb. The
valve can be controlled from the switching input for the be-
droom valve.
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If it is recommended to combine the discharge of the central
heating and the Renovent HR appliance, the Renovent con-
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safety valve. The valve can directly be connected to this pcb
Control for preheater up to 1000 W
The preheater ensures that the input air is kept above 0°C, so
the Renovent HR can continue the balanced ventilation also at
very low atmospheric temperatures. The option pcb contains a
control for a preheater up to 1000 W. The preheater can be con-
nected to the option pcb without separate control. The hook-up
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power cable must separately be connected to the option pcb.
Control for postheater up to 1000 W
The postheater ensures that the supply air that is blown into
the dwelling can be kept at the preset temperature. That way
additional warmth can be brought into the dwelling. The option
pcb contains a control for a postheater up to 1000 W. The pos-
theater can be connected to the option pcb without separate
control. The hook-up wire of the postheater must be fed into
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nected to the option pcb.
Two freely programmable make contact inputs
These inputs make it possible :
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to open the bypass without regard for the temperature con-
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to switch the inlet or outlet low or high, to circumvent the
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to switch the inlet low when the bypass opens.
Switch input for emergenc
y.
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emergency mode.
As standard that is set to switch off the fans.
Summary of Contents for Renovent HR Large
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