Dimplex DFB8842 Owner's Manual page 12

C. Light Dimmer Control
While the fireplace is running, repeatedly press the L. Dimmer Up or
K. Dimmer Down button to increase or decrease the brightness of the
upper lights.
D. Flame Speed Control
While the fireplace is running, press the N. Flame Speed Up button to
increase the speed of the flame or press the M. Flame Speed Down to
decrease the speed of the flame.
E. Sleep Timer
The Sleep Timer automatically shuts off the fireplace after a preset
time (from 30 minutes to 8 hours).
During fireplace operation, to set the sleep timer press the P. Sleep
Timer Up button. Set the timer from 30 minutes through 8 hours. The
fireplace will automatically turn off when the sleep timer reaches zero
(0) minutes.
The sleep timer can be cancelled at any time by pressing the O. Sleep
Timer Down button repeatedly until the sleep timer displays "0".
F. Purifire™
The Purifire™ includes a high efficiency filter to help improve the
quality of air. Press the G. Purifire™ On/Off button to turn the
Purifire™ function on. When the Purifire™ function is on, the Purifire™
symbol will flash. When off, the symbol will be solid.
The default setting for the Purifire™ is set at low speed. Press the
Q. Purifire™ Speed Down or the R. Purifire™ Speed Up buttons to
change between low and high speeds. Press the G. Purifire™ On/Off
button to turn the Purifire™ function off.
H. Flame & Heat On/Off Button
Press the H. Flame & Heat On/Off button to turn the Flame/heat
function on. When B. Set Temperature is higher then A. Room
Temperature the heat will come on. To turn the heat off, lower the
B. Set Temperature so that it's setting is lower then the A. Room
Temperature. The default temperature setting is 72°F (22°C).
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