STIEBEL ELTRON LWZ 180 User manual

Quick Start Guide to your
STIEBEL ELTRON Ventilation System
This guide is in addition to the main instruction and installation manual provided, and explains the basic functions and
settings recommended for optimal performance and ease of use of the following products.
Ventilation in your home
The main purpose of your ventilation system is fresh air supply and wet area extract. This system does this with the
maximum available heat recovery based on the unique design created for your home and the accompanying flow rate
settings entered by the installer on the initial setup
The system is extremely energy efficient and is designed to run continuously 24/7 with an average running cost of around
$10 per month, with this cost outweighed by the energy savings it provides, in addition to the health of the home and its
occupants. When leaving the home for any length of time, simply leave the system on to guarantee moisture control and
fresh air supply upon your return.
› LWZ 180
› LWZ 280
› LWZ 130
Settings
The system is ultimately set and forget, without the need for regular adjustment. Below are the operating modes shown on
the main screen, these are the only typically adjusted settings, with most systems remaining on Stage 2; with the occasional
use of the Intensive Ventilation setting when needed periodically.
36 | LWZ 180 | LWZ 280 | LWZ 180 Enthalpie | LWZ 280 Enthalpie www.stiebel-eltron.com
Operating
mode
Fan
stage
Description
Humidity prot. 0 Necessary ventilation for ensuring that the building
structure is protected under normal conditions
of use with somewhat reduced moisture loads,
e.g.during temporary absence of users and no dry-
ing of washing in the residential unit.
Stage 1 1 Reduced ventilation is the ventilation necessary to
meet hygiene standards and ensure protection of the
building structure (moisture level) under standard
conditions of use with partially reduced moisture
and pollutant loads, e.g.as a result of intermittent
user absence.
Stage 2 2 Standard ventilation is the ventilation necessary to
meet hygiene standards and ensure protection of the
building structure when users are present.
Intensive ven-
tilation
3 Intensive ventilation is increased ventilation with a
higher flow rate to reduce load peaks, e.g.for rapid
ventilation during or after a party. You can switch on
intensive ventilation with the programming unit or
with an optionally connectible external pushbutton.
Time program
mode
0 to 2 Time controlled fan program with various adjustable
fan settings.
Stage 1 can be used during the evening if noise is an issue as this is a lower air flow rate.
Stage 2 should be returned to during the daytime if this the case.
Timer Settings
The system does have a timer option to change from Stage 2 to Stage 1 each day automatically if needed.
Please refer to the main instruction manual section 4.4.3 for these settings.
Maintenance
The filters in your ventilation system require cleaning or replacing at regular intervals. Please refer to the main instructions
manual section 5 for further info. Replacement filters are available for purchase via your installer or online via
www.stiebel-eltron.co.nz/store.

ENGLISH
4.2 Programming unit
An external programming unit can be connected to the appliance
in addition to the factory-installed programming unit.
OKMENU
D0000064711
1
45
3
2
1 Text field
2 Appliance status symbols
3 Touch-Wheel
4 "MENU" button
5 "OK" button
4.2.1 Display
If you do not perform any settings for a while, the display illumi
-
nation switches off and the home screen appears.
Press any button to switch the illumination back on again.
4.2.2 Symbols
Symbol Description
Time program mode: The set fan program is active. Depending on
the setting, the unit is operated at various fan stages. The number
indicates the fan setting.
Intens. vent.: The unit runs at the highest fan setting for the set
period of time.
Condensate prevention (depending on unit): Condensate preven-
tion is active.
Filter change: Change the filters when this symbol appears.
Fault: The symbol is displayed permanently in the event of faults
that do not impair the basic function of the unit.
Bypass mode: The air flow bypasses the heat exchanger. No heat
is recovered.
Frost prot.: The preheating coil for frost protection is switched on.
Fan disable: The symbol is displayed in the event of the "Enable
fan" is set to "Off".
4.2.3 Controls
Operating
controls
Description
"MENU" but-
ton
Press this button for approx. one second to call up the menu
from the home screen.
Within the menu, press this button to go back one menu level
at a time.
When setting a parameter value, press this button to exit set-
ting of the parameter. Any changes made will not be saved in
this case.
"OK" button Pressing the "OK" button within the menus confirms the select-
ed parameter and takes you to the next menu level down.
In order to set the parameter, you must first make it editable
by pressing the "OK" button. Then you can change the value
with the Touch-Wheel.
Once you have set the parameter, confirm your entry with the
"OK" button.
Touch-Wheel From the home screen, you can select the following parame-
ters by turning the Touch-Wheel: "Humidity prot.", fan settings
"Stage 1" or "Stage 2", "Time program mode", "Intens. vent.",
"Favourites", "Direct selec." and "Function block". Confirm the
selection with the "OK" button.
Use the Touch-Wheel to select a parameter or value in the
menu.
If you turn the Touch-Wheel quickly, the increment size chang-
es after a while.
Note
Gloves, wet hands or moisture on the touch-sensitive
operating controls make it more difficult to make entries.
4.2.4 Operation
f Press the "MENU" button to access the menus from the home
screen.
f Turn the Touch-Wheel to move to the next parameter.
f Press "OK" to change the value of the parameter displayed.
f Adjust the value with the Touch-Wheel.
f Press "OK" to save the selected value. If you do not confirm
the change with the "OK" button, the change will not be
saved.
If you do not make any changes for a while, the display auto-
matically switches from the menu structure back to the home
screen.
Parameter changes made before this which had not yet
been confirmed with OK are lost.
If the Touch-Wheel and buttons are not used for a while, the
programming unit is locked.
f Touch "MENU" for three seconds to activate the programming
unit.
0
1
2