Reading Out Measured Values - DeDietrich MCR 24 User Manual

MCR 24/28 BIC
4.4

Reading out measured values

170513 - 300024112-001-01
If the temperature of the central heating water in the boiler falls too
much, the integrated protection device switches itself on:
4 If the water temperature is lower than 7°C, the circulating pump is
activated.
4 If the water temperature is lower than 3°C, the boiler is activated.
4 When the water temperature is above 10 °C, the boiler is switched
off and the circulation pump runs for another 15 minutes.
CAUTION
This function is a protection device for the boiler only, not
for the system or buiding fabric.
CAUTION
If a room thermostat, connected via connectors 7 and 8,
is activated, the boiler will operate permanently until it
reaches the flow setting point.
The following values can be displayed in the information menu Q:
4 t1 = Flow temperature (°C)
4 t2 = Return temperature (°C)
4 t3 = DHW sensor temperature (°C)
This temperature is used only for internal management in DHW
mode. During DHW draw-off, this value does not correspond to
the actual DHW outlet temperature (it is always lower).
4 t4 = Outside temperature (°C)
4 fl = Ionization current (μA)
4 Mf = Fan speed (rpm)
1. Press the f key. The symbol Q flashes.
2. To access the parameters, press key S .
3. Press the [+] key successively to scroll down the various
parameters.
4. Press the > key 2 times to return to the current operating mode
T000138-A
4. Operating the appliance
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