Installation Examples; Installation Recommendations - Landis+Gyr ULTRAHEAT T450 Installation Instructions Manual

4.1 Changing the installation location
Note
The installation location can be changed in the field if this
function has been enabled at the factory. This function
locks after 5 changes and can then no longer be used. The
entries can be checked via the LCD loop "LE".
Note
Alternatively, you can change the installation location using
UltraAssist.
Note
If the "PoS" symbol is not displayed, this function is not
available.
For meters with an adjustable installation location, the installation
location can be determined manually. Proceed as follows:
• Press and hold the Service button (for more than 3 seconds)
until "Para" appears on the LCD.
• Press button 2 briefly until "F8" appears on the LCD.
• Press button 1 briefly several times until "PoS" appears on
the LCD.
• Briefly press button 2 to display the current installation
location. Depending on the installation location, "PoS Cold"
or "PoS Hot" is displayed.
• To change the installation location, press button 1.
The display changes.
• Press button 2 briefly until
• To complete the parameterisation, briefly press button 1
several times until "nb-----" appears on the LCD.
• Press button 2 briefly to complete the change.
• The change can be checked using the symbols (
on the LCD.
• If necessary, adjust the temperature sensors according to
the installation requirements.

4.2 Installation recommendations

• During installation, make sure that water cannot enter into
the calculator during operation.
• Inlet or outlet sections are not necessary but are
recommended.
• If you install the meter in the common return of two circuits,
select an installation location with a minimum distance of 10
× DN from the T-piece.
• The temperature sensor ends should reach at least into the
middle of the pipe cross-section.
© Landis+Gyr
appears on the LCD.
or
Subject to change without prior notice

4.3 Installation examples

Figure 3: Integration with ball valve (recommended up to and
including DN 25)
Figure 4: Integration for circuit with admixture; placement of the
temperature sensors
)
Figure 5: Integration for circuit with throttle circuit, for example
(flow sensor in flow direction before the control valve/
differential pressure regulator)
4.4 Installation instructions for the adapter set (direct
immersion temperature sensor)
An installation set is included for meters with a Ø 5.2 × 45 mm
temperature sensor. This allows you to immerse the temperature
sensor directly in an installation piece or a ball valve, for example.
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