Dyson purifier hot+cool gen1 - Night Mode and Sleep Timer; Quiet Operation and Screen Dimming; Heating and Cooling Modes; Temperature Setting and Mode Switching

Heating and Cooling modes
In Night mode, your Dyson purifying fan heater will continue to monitor and
respond to changes, but only using its quietest settings – and with its LCD
screen dimmed.
Press the Night mode and Sleep timer button to scroll through the
timer options.
Night mode and Sleep timer
Press the button to set the required room temperature.
Your machine will pause when the temperature set has been reached.
Press the Cooling mode button to switch your machine from Heating mode
to Cooling mode.
The remote control
with the Heating
mode button on
the right, below
the Information
button. The Cooling
mode button is
immediately below
the Heating mode
button.
The remote control with
the Night mode and
Sleep timer button on
the right at the bottom.