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3. DISPLAY AND INTERFACE
3.1 KEYBOARD
SET
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Displays and modifies the temperature set points.
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In programming mode it selects a parameter or confirms an operation.
UP
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Displays and modifies the energy saving (Night Time Setback) settings.
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In programming mode it browses the parameter codes or increases the displayed value.
DOWN
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Displays the working hours of the load relays.
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In programming mode it browses the parameter codes or decreases the displayed value.
CLOCK
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Changes lower display from inlet temperature to current time and day.
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To set the current time and day.
EXT
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Changes upper display between outlet temperature, inlet temperature, outdoor reset temperature,
modulation % or the temperature difference between the inlet and outlet temperatures.
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In programming mode it sets the modulation output (4-20mA). (Password is required (321).
ON/OFF
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Switches the control ON or OFF.
UPPER LED READOUT
LOWER LED READOUT