P26 : Passive Cooling Hysteresis; Cooling; X84; „ P70 : Delete Fault List - STIEBEL ELTRON LWZ 130 Bedienung Und Installation

INsTALLATIoN
Appliance shutdown
„P26 : Passive cooling hysteresis „
To make cooling possible, the outdoor air temperature must be
lower than the extract air temperature by the value set in this
parameter.
„P27 : Temperature differential for enabling passive „

cooling

Use this parameter to define the temperature differential that must
be exceeded for passive cooling to be
cooling to be enabled, the following condition must be met.
P3 = 2 : Outdoor air temperature > set room temperature + P27
P3 = 3 : Extract air temperature > set room temperature + P27
„P70 : Delete fault list „
To delete the fault list, set this parameter to 1. Press the "OK"
button to confirm. Afterwards, 0 is displayed again and the fault
list is deleted.

12.2 Actual values

Display Description
„ „ I1 Passive cooling status
„ „ I2 Extract air temperature
„ „ I3 Relative humidity of extract air
„ „ I4 Filter service life
„ „ I5 Appliance software version
„ „ I6 Appliance software patch
„ „ I7 Serial number of the terminal device
„ „ I8 Programming unit software version
„ „ I9 Outdoor air temperature
„ „ I13 Extract air dew point
„ „ I15 Supply air fan drive output
„ „ I17 Exhaust air fan drive output
„ „ I19 Percentage output of internal preheater
„ „ I20 Ventilation unit operating time
„ „ I21 Fan operating time
„ „ I70-79 Fault

12.3 Code

„Cod „
Enter 1000 to enable actual values and parameters, which are
reserved for qualified contractors. "A1" is shown on the display
when this is entered correctly.

13. Appliance shutdown

We recommend running the appliance in fan stage 1, even during
prolonged absence.
Material losses
!
If you interrupt the power supply to the appliance, check
that humidity protection is ensured for the building.
If the appliance needs to be taken out of use for an extended
period, disconnect it from the power supply.
f Replace the filters. f
www.stiebel-eltron.com
326794-40317-9268_LWZ_130_de_en.indb 41
enabled. In order for passive
Unit
°C
%
h
°C
°C
%
%
%
d
d

14. Maintenance

WARNING Electrocution
Disconnect the appliance from the power supply before
carrying out work inside the appliance.
Activity
Clean condensate pan
Condensate drain
Clean cross-countercurrent heat exchanger
Fan
Preheater
Air ducts
f Open the cover beneath the appliance or remove the sus- f
pended ceiling panels under the appliance.
f Interrupt the power supply. f
Condensate pan
2
1
1 Condensate pan fixing screws
2 Condensate pan
f Undo the fixing screws of the condensate pan. f
f Remove the condensate pan from the appliance carefully as it f
may still contain water.
Condensate drain
Material losses
!
A blocked condensate drain can cause appliance faults.
If the condensate drain is blocked, condensate can escape
from the appliance in an uncontrolled manner and cause
water damage.
Clean the float module of the condensate pump
This section is not necessary if no condensate pump is connected.
f Check the functionality of the float module every two years. If f
necessary, clean the float module.
You can remove the cover of the float module. During assembly,
ensure that the bevelled side of the float magnet faces upwards.
f Push the cover back onto the float module. f
Maintenance inter-
val (in years)
1
1
3
3
2
3
1
LWZ 130 | 41
26.10.2017 18:38:25