Houghton BELAIRE HB3400 Owner's Manual page 17

Note
When in the AUTO mode, according to the difference between the setting temperature and the
temperature , the plenum will display" "and " "(automatic heating) , or
environmental
" " and " " (automatic cooling) in the same time.
Celsius and Fahrenheit degree change
⚫
In any mode，Press the"℃/℉"key，you can select temperature between Celsius and Fahrenheit.
Turn off
⚫
"key again，unit turns off and the plenum will display nothing.
Press the on/off"
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