STIEBEL ELTRON LWZ 130 - Page 42

OPERATION
Settings
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 Touch sensitivity
The "Touch sensitivity" parameter enables you to adjust the touch
sensitivity of the Touch-Wheel and the sensor keys.
 Touch boost
The "Touch boost" lets you adjust the reaction speed of the Touch-
Wheel and the sensor keys.
 Favourites
In the "Favourites" parameter, you can select up to three parame-
ters that you wish to have displayed in the standard display.
 Intens. vent.
 Intens. vent. time
This parameter defines the runtime for intensive ventilation. After
this time has expired, the unit switches back to the previously
selected fan setting. If the intensive ventilation is switched on
with an external pushbutton, this parameter defines how long
the intensive ventilation continues to run after the button has
been pushed.
 Heat recovery bypass
 Set room temperature
Use this parameter to set the outside temperature from which
the outdoor air bypasses the heat exchanger and flows into the
building through open windows.
f Use the Touch-Wheel to set the required Set room tempera-
ture. Press "OK".
 Operating mode heat recovery bypass
Effect
Disabled Bypass mode is permanently disabled. Air flows
through the heat exchanger.
Bypass/window contact Bypass mode is enabled. The "Bypass mode" symbol
appears on the display. When the window with the
window contact is open, the air stream bypasses the
heat exchanger.
Outdoor air routing au-
tomatic
Bypass mode operates with summer day detection.
This option is set in the delivered condition. The
"Bypass mode" symbol appears on the display.
Extract air routing
autom.
Bypass mode operates subject to the extract air
temperature. The "Bypass mode" symbol appears
on the display.
The appliance checks whether a window contact is connected and
activated at X18. When bypass mode is enabled and the window
with the window contact is open, only the extract air fan is acti-
vated and the supply air fan switches off. The air flow bypasses
the heat exchanger.
Note
The qualified contractor can set the parameters men-
tioned in the description of this parameter.
- Temperature to enable heat recovery bypass
- Temperature to block heat recovery bypass
- Hysteresis for heat recovery bypass
- Temp. differential for heat recovery bypass
 Outdoor air routing automatic: Bypass mode with
summer day detection
For bypass mode to be enabled, the following condition must be
met for 60minutes:
- Set room temperature+ Temp. differential for heat recovery
bypass< Outdoor air temp.
If all the following conditions are met, the appliance switches to
bypass mode.
- Extract air temp.- Hysteresis for heat recovery bypass> Out-
door air temp.
- Extract air temp.> Set room temperature
If one of the following conditions is met, the appliance terminates
bypass mode.
- Outdoor air temp.< Temperature to block heat recovery
bypass
- Extract air temp.- Hysteresis for heat recovery bypass< Out-
door air temp.
- Extract air temp.< Set room temperature
 Extract air routing autom.: Bypass mode subject to
extract air temperature
For bypass mode to be enabled, the following condition must be
met for 60minutes:
- Set room temperature+ Temp. differential for heat recovery
bypass< Extract air temp.
This delayed enabling prevents cooling down in spring and au-
tumn.
If all the following conditions are met, the appliance switches to
bypass mode.
- Extract air temp.- Hysteresis for heat recovery bypass> Out-
door air temp.
- Extract air temp.> Set room temperature
If one of the following conditions is met, the appliance terminates
bypass mode.
- Outdoor air temp.< Temperature to block heat recovery
bypass
- Extract air temp.- Hysteresis for heat recovery bypass< Out-
door air temp.
- Extract air temp.< Set room temperature