Zehnder ComfoAir 70 Instructions De Montage page 8

Sensor system
Intended purpose
The sensor system modules enable
the demand-based control panel
to optimise the indoor air climate,
increasing comfort and quality of life
in living spaces.
Three sensor system modules are
available for the fully automated
operation of the ComfoAir 70 and
ComfoSpot 50 ventilation units:
n
HUMIDITY (combined
humidity/temperature sensor)
n
VOC (VOC sensor and
combined humidity/
temperature sensor)
n
CO2 (CO2 sensor and
combined humidity/
temperature sensor)
The sensor system modules are
installed in the exhaust air section
of the ventilation unit and detect
the condition of the exhaust air in
terms of its temperature, relative
humidity, VOC concentration
(volatile organic compounds) and
CO2 concentration.
The control panel for the ventilation
units checks the measurement
results and executes the control
algorithm required based on the
control characteristic.
8
Electrical connection
The cable for the sensor system
module is to be connected to the
clamping point for SENSOR X8 on
the control board (Tab.1).
Colour coding SENSOR X8
for sensor cable clamping point
brown 1
white 2
green 3
yellow 4
Tab.1: Colour coding
Installation
The sensor system module
must be installed before the
unit is fitted. To provide protection
against electrostatic effects, an
ESD armband must be worn.
Signal
+
-
CL
DA