Robertshaw 300-225 Owner's Manual download pdf (Page 29)

CHANGING FAHRENHEIT (°F) TO CELSIUS (°C)

This thermostat is preset to display the temperature in Fahrenheit. You may change the display

to Celsius. To change from one to the other, simultaneously press the s and t buttons.

The display will change automatically.

CHANGING 12 HOUR TIME TO 24 HOUR TIME

This thermostat is preset to display the standard 12 hour time format. You may change the dis-

play to the 24 hour time format. To change from one to the other, press and release the CLOCK

button, then press the MODE button. The display will change automatically.

POWER FAILURES

This Robertshaw thermostat will maintain the program settings during any type of power failure.

If power fails, AC will be displayed for 30 minutes. After 30 minutes, the display will go blank. If

power is restored within the first 30 minutes, the thermostat will resume normal operation. If

power is restored after 30 minutes, 12:00 AM will flash, and the thermostat will control to the

night event setpoint until the clock is reset. Once the clock is reset, the thermostat will resume

normal operation.

OUTDOOR TEMPERATURE INDICATOR (OPTIONAL)

If your Robertshaw thermostat has been installed with an outdoor remote sensor, you can view

the outdoor temperature by simply pressing and holding the OUTDOOR button. The thermostat

will return to normal operation automatically.

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Robertshaw 300-225 Owner's Manual Page 29