Regulated Sub-Soil Heat Exchanger Valve - Zehnder Option Box Manuel De L'installateur

Settings advice
CO2 sensor (0-2000 ppm)
Menu item
INPUT AT 0%
INPUT AT 100%
METHOD
SETPOINT
PROPORTIONAL BAND
INTEGRAL TIME
0-10V FUNCTION
0-10V PRIORITY
Hygro sensor
Menu item
INPUT AT 0%
INPUT AT 100%
METHOD
SETPOINT
PROPORTIONAL BAND
INTEGRAL TIME
0-10V FUNCTION
0-10V PRIORITY
Pressure sensor
Menu item
INPUT AT 0%
INPUT AT 100%
METHOD
SETPOINT
PROPORTIONAL BAND
INTEGRAL TIME
0-10V FUNCTION
0-10V PRIORITY
SAG 0-3 / SAG 0-5 / SAG 0-M
Menu item
INPUT AT 0%
INPUT AT 100%
METHOD
CONTROL SETTINGS
0-10V FUNCTION
0-10V PRIORITY
26 - EN
6
Setting
10.0V (2000 ppm)
2.0V (400 ppm)
CONTROL
5.0V (1000 ppm)
50% (800 ppm)
300s
FLOW-PROPORTIONAL
AUTO ONLY
Setting
10.0V (100% RH)
2.0V (20% RH)
CONTROL
7.0V (70% RH)
50% (40% RH)
30s
FLOW-PROPORTIONAL
AUTO ONLY
Setting
0.0V
[2* setpoint] V
CONTROL
[setpoint] V
50-150% (see reach sensor)
30s
FLOW-PROPORTIONAL
AUTO ONLY
Setting
0.0V
10.0V
STEER
n/a
FLOW-PRESET
ON
Operation
The input of the connected sensor or switch is translated
to a neutral 0-100% signal. This translated signal is
send to the ventilation unit as requested airfl ow. The
ventilation unit will compare this request with any other
incoming requests and determine the needed airfl ow.
By translating the signal to a neutral 0-100% signal a
0-600Pa 0-10V pressure sensor can be easily replaced
by for example a 0-500Pa 0.5-4.5V pressure sensor. The
input voltage settings need to be changed only. Also, in
case of control, the setpoint needs to be adjusted.
sensor
measured value
0-10V
0-10V
The input voltage at 0% output and the input voltage
at 100% output is set in the option box menu for each
specifi c 0-10V input, after enabling the input. By default,
0% output is given at 0V input, whereas 100% output
is given at 10V. If a 0.5-4.5V pressure sensor would
be connected to steer the ventilation, the input for 0%
output would be 0.5V and the input for 100% output
would be 4.5V.
11 Regulated sub-soil heat exchanger
valve
The device is equipped with an optional
control for a sub-soil heat exchanger to
preheat or precool the outdoor air.
The device can control a 230V valve from
an air through ground heat exchanger.
Installation
1. Install the permanent 230V power of a sub-soil heat
exchanger valve to connector 12 (see the wiring
diagram).
2. Install the switched 230V power of a sub-soil heat
exchanger valve to connector 6b (see the wiring
diagram).
3. Install the outdoor temperature sensor of a sub-
soil heat exchange to connector 6a (see the wiring
diagram).
4. Install the mains power cable of the device
Commissioning
After installation there is no need to commission the
sub-soil heat exchanger on the ventilation unit.
6
Not in accordance with Belgian freduc legislation
settings
input at 0%
input at 100%
translation
measured value
0-100%
0-100%