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SYSTEM OVERVIEW: PURE CONTROLLER
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Pure controller | Installation instructions
2.1 Function
The Pure controller is a control unit for decentralised ventilation units with heat recovery from
inVENTer GmbH. Where these are connected, the information determined at the controller via the
sensor technology is incorporated into the control of the ventilation unit.
If no sensor is connected (basic control unit), the operating mode and intensity of the air flow can
be set on the Pure controller.
Possible operating modes:
• Heat recovery
• Ventilation
• Pause timer
• OFF (p4 and p4 Fire only)
There are three ventilation levels for the ventilation units which define the rotational speed of the
fans and therefore the units' air flow. These are fixed and cannot be changed:
• Ventilation level 1 – 25 %
• Ventilation level 2 – 50 %
• Ventilation level 3 – 100 %
If sensors are connected to the Pure controller, the range of the controller's functions increases
and this also allows demand-based ventilation alongside manual ventilation.
The sensor used must have a potential-free relay contact as its output.
The increase in functions depends on the variant of controller:
Controller
variant
Sensor
Limit value exceeded
Limit value not reached
p4
p4 Flat
CO
2
sensor
Switch all ventilation units
connected to the controller to
ventilation mode,
output level 75 %.
Switch all ventilation units con-
nected to the controller to the
originally set operating mode
and ventilation level.
VOC sensor
Humidistat
p4 Fire
p4 Fire
Flat
Pressure
sensor
(4 Pa)
Switch all ventilation units
connected to the controller to
OFF mode.
1 a
Flush-mounted switching
power supply unit, or
b
DIN rail switching power
supply unit
2
Mounting box
3
Control module
4
Display LED (RGB LED)
LED red: Heat recovery
LED green: Ventilation
5
Switch, programming unit
