Intended Purpose; Electrical Connection - Zehnder ComfoAir 70 Instructions De Montage

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 CO
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,
(volatile organic compounds) and
CO concentration.
2
The control panel for the ventilation
units checks the measurement
results and executes the control
algorithm required based on the
control characteristic.
8
(CO sensor and
2 2
VOC concentration

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
Before working
ventilation unit, all poles
of the power cable must be
disconnected from
supply.The sensor module must
be installed when the device
has been removed. Please note
the assembly instructions in the
operating instructions. An ESD
wristband must be worn to protect
against electrostatic effects.
Signal
+
-
CL
DA
on the
the power