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Verfügbare Sprachen
Verfügbare Sprachen
„ "Cooling" mode
The fans are controlled according to the surface temperature of the radiator (tab. T3, BQ1 sensor). For aftercooling mode,
use the Z-TH-HC thermostatic head set to "K". When using a different thermostatic head, the flow of heating medium in the
radiator is not guaranteed at high ambient temperatures
BQ1 sensor
17 °C - 23 °C
< 17 °C
EN
> 23 °C
The temperatures listed in Table T3 are valid for the values measured by sensors BQ1 and BQ2. They may differ from the
values measured by external temperature sensors.
Do not adjust the position of the BQ1 and BQ2 sensors! Do not cover the radiator! Leave the area
around the radiator clear!
If there is not enough air flow around the radiator, the temperature sensors may not work correctly and
therefore affect the functioning of the whole device.
For cooling mode, it is necessary to make the appropriate adjustments to the source of the heating/
!
cooling medium. The operator is obliged to ensure by appropriate measures that the temperature
of the medium is above the dew point of the air in the room. If the temperature of the medium drops
below the dew point, water vapour condenses on the radiator and there is a risk of its damage
due to corrosion. With this aftercooling it is possible to reduce high temperatures by several °C. This is
not however an air-conditioning unit! It is not possible to change the set switch-on and switch-off
temperature!
Indication
Fault
BQ1
temperature
sensor
BQ2
temperature
sensor
M1 fan
Condensation
„ "Diagnostic" mode
The control unit automatically checks the function of the temperature sensors and operation of the fans. If a fault is detected,
the fans are switched off and the indicator diodes 3 on the control panel (Fig. S11) indicate the cause of the fault (Tab. T4)
by flashing.
Switching of the control unit to diagnostic mode occurs automatically.
„ Exiting "diagnostic" mode
After the fault has been remedied (see Chapter 7.1.) and the power supply has been connected, "diagnostic" mode ends
automatically. Fan speed is set to zero.
7.2. Device faults
If the V-POWER ventilation unit is not working properly, carry out a check as described below.
BQ2 sensor
Status
0 °C - 60 °C
Fans on
0 °C - 60 °C
Fan switching off, low cooling media temperature
0 °C - 60 °C
Fan switching off, high cooling media temperature
Description
- The measured temperature is
not within the range:
0 °C - max. operating
temperature
- The measured temperature is
not within the range:
0 °C - max. operating
temperature
- A fan / the fans are not spinning
- The control unit has no
information about operation of
the fans
- Danger of condensation on the
surface of the heating element
Cause
1 - Input water temperature out of range
2 - Faulty sensor
3 - Broken / shorted sensor cable
4 - Disconnected connector on the control
panel
1 - Input water temperature out of range
2 - Faulty sensor
3 - Broken / shorted sensor cable
4 - Disconnected connector on the control
panel
1 - Faulty fan
2 - Broken power supply cable to the fan
3 - Disconnected power supply cable to the
fan
1 - Surface temperature of heating element
< 17°C
22
T3
T4
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