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If you choose not to use commissioning mode you may see various words and Icons
flashing in the LCD whenever a time period is in use. For example, the word "HEAT"
may flash to indicate heating is required but being held off by the 4 minute anti‐cycle
timer. Or the word "HEATING" may be flashing to indicate set point has been achieved
however heating is being held ON by the minimum run timer.
The golden rule with the SMT‐770 is anything that flashes is a timer
overriding what would normally be expected to occur;
either a function is being held on or off momentarily.
Please be patient.
Test fan operation.
With the thermostat OFF (tap the mode button to show OFF in the LCD). Simply tap the
fan button to cycle through the available fan speeds. As the LCD changes to show the
fan speed or fan mode you should here faint "clicks" as the SMT‐770 internal relays
change, the equipment fan speed should change accordingly.
Test heating and cooling (if both fitted).
Turn the SMT‐770 to Auto season change mode by tapping the mode button until the
words "Heat" and "Cool" are shown on the LCD.
Using the temp or Temp button set the desired temperature a few degrees below
the ambient temperature. After a few moments you will hear a click and the word
"Heat" will change to "Heating". Verify that the heating system is on and operating
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