Helios KWL EC 800 S Pro Montage- Und Betriebsvorschrift Seite 67

Installation and Operating Instructions
Fault Unit behaviour
27 - Fault with pressure Unit ventilates
sensor of supply air filter
28 - Fault with pressure Unit does not operate
sensor of supply air fan properly
29 - Fault with pressure Unit does not operate
sensor of extract air filter properly
30 - Fault with VAV pressure Unit does not operate
sensor (supply air duct) properly
30 - Fault with VAV-C4 Unit does not operate
pressure sensor (extract air properly
duct)
32 - Air quality sensor fault Unit ventilates
33 - Humidity sensor fault Unit ventilates
34 - Fault with external tem- Unit ventilates
perature sensor of BMS
50 - Supply air filter blocked Unit ventilates
> 80 %
51 - Extract air filter blocked Unit ventilates
> 80 %
70 - Hot water heater bat- Unit ventilates
tery frost protection.
71 - Water heater - wait for Unit ventilates
the water temperature
72 - Water heater - wait for Unit ventilates
the supply air temperature
73 - Free night cooling is Unit ventilates
active.
74 - Flow reduction, mini- Unit works in restricted
mum temperature in duct is mode
not reached
75 - Passive house pro- Unit does not operate
tection
36 - Fault in B circuit board Unit does not operate
37 - Condensation tray Unit does not operate
overflow
Central Ventilation Units KWL EC 800 /1200 /1800 /2600 S Pro/WW
Problem
Pressure sensor fault
Pressure sensor fault
Pressure sensor fault
Pressure sensor fault
Pressure sensor fault
Air quality sensor malfun-
ction
Air quality sensor malfun-
ction
BMS sensor fault or incor-
rect data
Filter blocked
Filter blocked
Water heat exchanger frost
protection is active
Water temperature evaluati-
on active
Supply air temperature
evaluation.
Temperature evaluation for
the free night cooling
The unit tries to reach the
minimum temperature
The unit works in such a
way that meets the passive
house specification
The unit cannot operate the
peripherals connected to
the B circuit board
Water level in condensation
tray is too high
29
Solution
Check whether the measuring device is damaged or
contaminated. Check the pressure hoses for consistency. If
necessary, replace the pressure sensor module.
Check whether the measuring device is damaged or
contaminated. Check the pressure hoses for consistency. If
necessary, replace the pressure sensor module.
Check whether the measuring device is damaged or
contaminated. Check the pressure hoses for consistency. If
necessary, replace the pressure sensor module.
Check whether the measuring device is damaged or
contaminated. Check the pressure hoses for consistency. If
necessary, replace the pressure sensor module.
Check whether the measuring device is damaged or
contaminated. Check the pressure hoses for consistency. If
necessary, replace the pressure sensor module.
Check whether the air quality sensor is correctly connected.
If necessary, check the functioning of the sensor (output
signal value).
Check whether the air quality sensor is correctly connected.
If necessary, check the functioning of the sensor (output
signal value).
Check address and sensor value in BMS system. Check
functioning of BMS sensor.
Replace filter.
Replace filter.
Automatic protection of water heater battery is active to
prevent damage by low temperatures. This function is auto-
matically ended as soon as the return temperature reaches
the target value.
Process ends automatically.
Process ends automatically.
The preparation for the free night cooling is running. In this
respect, the start conditions for this function are evaluated.
The process ends automatically.
Minimum supply air temperature is not reached. There is an
automatic output correction (supply air fan is turned down).
Minimum supply air temperature for the passive house requi-
rements has not been reached. Automatic process.
Communication with the B circuit board cannot be establis-
hed. Check communication cable between A and B circuit
boards. If necessary, replace B circuit board.
Check sensor connection. Check functioning of sensor and
check whether the unhindered drainage of the condensation
tray is possible.
EN