Gebwell UI400 User manual

Gebwell
Terminal UI400
Quick Guide

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
1. Navigating in the menu
Turn the knob: Select a symbol from the
navigation menu.
The symbol selected is highlighted with a
dark background in the menu.
Press the knob = Select the desired icon.
The first page of this menu is displayed on
screen.
Return to the main menu with the arrow
symbol.
Making changes in the menu:
Turn the knob: Select the setting you want
to adjust.
Press the knob = Select the desired icon.
Scroll down through the menu. The menu
may have more settings than can be
shown on the display at a given time (for
example, the Time program).
Change the setting.
Press the knob to confirm the change.
The adjusted setting is highlighted with a
border.
Continue navigation.
•Select the next setting to
adjust.
•Turn the knob to move to the
next menu.
•Return to the main menu with
the arrow symbol
The items in the menu may have the following
operating states:
•Not selected: The item is displayed
normally, black on white background.
•Selected: The icon has a border/frame.
•Modified: The icon is displayed with white
colour on black background.
Modification
timeout
5
seco
nds
If an adjusted value is not
confirmed within 5 seconds of
the adjustment, the change is
discarded.
Programming
timeout
8 min The screen will return to the
normal view in 8 minutes
from the last change on the
display.
Symbols:
Left side of the operating/display terminal:
Rights for user and expert levels:
Home, item details.
Temperatures, changes to room
temperature (heating/cooling)
Domestic hot water settings
Info pages:
•Notifications (alarms, events)
•Item details
•Energy monitoring
Service/settings:
•Setting changes. (heat-up curve,
summer/winter switchover limit)
•Special settings (service use,
alarm acknowledge)
•*Expert menu
*For experts and maintenance companies only,
requires a password:
Diagnostics pages.
Settings/maintenance:
•Access to all parameters
Alarm
Alarm acknowledgement/requires
maintenance
Notification
Manual control
Access rights (1–3)
Heat source active (compressor)

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
2. Heating settings
•Operation mode
•Room temperature change
•Time program
•Zone-specific room temperature adjustment
Operation mode
Automatic operation: Recommended mode
This operation mode automatically ensures that the best possible setting is always on
(e.g. summer/winter settings).
You can change the setting to continuous protective, comfort or reduced operation by
pressing the knob with the desired operation mode selected.
Protective operation: The controller drops the building’s setpoint down to the
protective level. (factory setting 15°C)
Comfort operation: The controller follows the comfort setpoint in heating regardless of
the time. The controller ignores the summer shut-off function while in comfort
operation.
Reduced operation: The controller follows the reduced setpoint in heating regardless
of the time. The controller ignores the summer shut-off function while in reduced
operation.
The heating operation setpoints can be changed in the menu.
Setting the room temperature
To change the room temperature, go to the
Comfort setpoint value.
With the desired setpoint selected, press the knob and then select a new value.
Press the knob to confirm the new setpoint.
To increase the room temperature, increase the setpoint.
To decrease the room temperature, decrease the setpoint.
A change of one degree corresponds to approximately one degree in room
temperature.
Time program
Use time program to reduce the temperature when you are away from home, on
holiday or for the night, for example. The time program only works in the Automatic
operation mode.
If you want to use the automatic operation mode but want the temperature to stay at
comfort level regardless of the time, make a change to the time program.
With
Time program selected, press the knob.
Adjust the time program.
If you want all the weekdays to follow the same time program, use the
Copy function.
With the time program ON, the controller follows the
Comfort setpoint in heating. With
the time program OFF, the controller follows the
Reduced setpoint .
Heatin
g

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
Zone-specific room temperature adjustment
Use the Heating setting to temporarily adjust the zone-specific room temperature
(circuit-specific).
The controller will increase the temperature of the selected heating zone (circuit) by
one degree. The device will return to the normal state once the setpoint is reached or
changes occur in the time program.
Heatin
g

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
3. Setting the domestic water heating
•Domestic hot water operating mode
•Domestic hot water reload with “quick charge”
•Changing the domestic hot water temperature
•Domestic hot water time program
Domestic hot water operating mode
You can turn domestic hot water heating on/off with the
Operating mode setting.
When the operating mode is ON, the heat pump prepares domestic hot water up to
the
Nominal setpoint set.
When the operating mode is OFF, the heat pump does not prepare domestic hot
water.
Domestic hot water reload with “quick charge”
If you temporarily need more domestic hot water, use the temporary recharge/quick
charge function.
Benefits: No changes to basic settings and the device returns to the basic state once
the desired value has been reached.
Changing the domestic hot water temperature
To change the domestic hot water temperature, adjust the
Nominal setpoint .
To increase the amount of domestic hot water, increase the setpoint value.
To conserve energy, reduce the setpoint value.
Domestic hot water time program
To use the time program for domestic hot water, DHW release must be set in the
Expert menu ( Time program 4 / DHW ). The instructions for the setting can be
found in the
Installation, operation and maintenance manual .
Factory setting: Release 24h/day
With the time program ON, the controller follows the Nominal setpoint value for
domestic hot water preparation.
With the time program OFF, the controller follows the
Reduced setpoint .

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
4. Monitoring the heating system
•Heating/cooling zones 1, 2 and 3
•Domestic hot water
•Errors
•Energy monitoring
The Info pages display information related to the system, heating zones, domestic
hot water and energy monitoring.
You can see the zone-specific temperatures, status information and setpoint
values on the pages.
Energy monitoring
Energy consumption monitoring requires the optional energy meter.
The energy data shows the energy produced and consumed by the heat pump,
and the controller shows the annual performance graph.

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
5. Local settings
Local settings must be configured during commissioning
•Time and date
•Summer/winter switchover
•Language
6. Special functions
•Heat pump reset
•Emergency operation
Heat pump reset
Resetting the heat pump will acknowledge alarms and reset the system to the
startup state.
By selecting
Reset HP and setting it to Yes , the alarms will be acknowledged and
the system will restart when a heating request is active. If the fault persists, refer
to rectifying measures in the Installation, operation and maintenance manual .
Emergency operation
To activate emergency operation, set Emergency operation to ON.
Emergency operation runs the device with an electric resistor without running the
source pump.

v1-0 29082014 Gebwell UI400 Terminal Quick Guide
7. Settings
•Heating zone settings
The most important settings for the heating zones can be set in the menu.
When using the device in automatic operation, all settings in this menu must be
set for each building.
•Comfort, reduced and protection settings
•Heating/cooling curve
•Summer/winter settings
Heating curve:
The heating curve is a setting that must be configured during commissioning. If
the gradient needs adjustment during the heating season, make only minor
changes.
The greater the slope of the heating curve, the more the output water temperature
changes as the outdoor temperature drops. In other words, if the room
temperature is incorrect at low outdoor temperatures, but correct at higher
temperatures, the inclination must be changed.
Increasing the setting: Increases the output water temperature particularly at low
outdoor temperatures.
Reducing the setting: Lowers the output water temperature particularly at high
outdoor temperatures.