MHS Boilers STRATA 3 220, Instructions For Installation, Servicing & Operation

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STRATA3
6.4.3 adjusting the fixed point of the mixer circuit
If the MR 03 mixer control is connected to the Strata 3, the fixed point of the heating curve of the
mixer can be adjusted.
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Press the red ‘reset’ button. On the lower line in the display, the supply flow temperature T1 of the
sensor S1 is displayed.
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Press the ‘service button’
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Press the red ‘reset’ button 3 times. On the display (MI MIN) is displayed.
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Now turn the red potentiometer on the boiler control panel, in order to adjust to the required fixed
point.
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The display will be showing the old value to the left and the new value to the right.
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By pressing the ‘service button’ again the new value will be stored.
6.4.4 adjusting the domestic hot water temp.
If there is a hot water temperature sensor connected, the hot water set point temperature can be
adjusted by the green potentiometer.
Adjustable range: 20°C…60°C
The hot water temperature can be read from the display.
6.4.5 hot water thermostat
With a hot water thermostat connected, the required temperature can be adjusted by the thermostat.
The green potentiometer, for the hot water preparation is then out of operation and therefore the
temperature will not be displayed on the display panel.
6.5 switching off the appliance
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Switch the on/off switch on the appliance control panel
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Turn off the gas supply.
Note: Turning off the appliance will leave the system at risk of freezing during winter months and will put
out of action the automatic pump exercising routine. If the only reason for shutdown is that normal heating
is not required, it is recommended to leave the boiler on and turn off or turn down any external controls.