Input / Output Assignment Of U-Modules For Mixed Circuit - Rehau NEA SMART 2.0 Service Manual

7.5.9

Input / output assignment of U-Modules for mixed circuit

Fig. 7-17 Webpage: U-Module, input/output
Options:
- Use return temperature probe
Enables boost mode in heat up phase
- Use digital input for dew point monitor
Note:
"OK" state is when contact is closed
- Define pump as high efficiency pump
Increases minimum run time of pump (runs even when mixing valve
is in bypass mode)
- Adjust temperature reading
Note:
The analogue input 3 is reserved for a wired outside temperature
probe (later use).
If the offset values are modified, use "adjust offset" to verify the
result.
Fig. 7-18 Webpage: U-Module, input/output
To verify correct wiring and operation of pump and actuator of mixing
valve, you can use "Confirm & test".
Remark:
To improve the boost function, it is recommended to verify that flow
and return temperature show the same value when
- Some manifold valves are opened
- The pump is running
- Mixing valve is closed
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