Theben TimeGuard TRT033 Manual page 6

The night set back function reduces the set
temperature by about 4ºC for a given number
of hours set by the user. It is activated when
the bed symbol is flashing on the display and
the hours of set back remaining are shown on
the main display alternatively with the room
temperature.
To activate night set back press the frost/bed
button ( ) and adjust the number of hours
with the +/- button. To exit night set back, wait
for 5 seconds after any button push (there is
no blue illumination showing), and press the
frost/bed button once.
The frost function reduces the set temperature
to 5ºC. The frost function is activated by
holding down the frost / bed button for 3
seconds. The frost function is terminated by
holding down this same button for 3 seconds.
When in frost mode, the frost symbol (
flash on the display. The set temperature buttons
remain non-functional during frost mode.
The temperature swing can be adjusted
between 1ºC and 0.5ºC using a jumper found
on the rear of the unit. If the jumper is moved,
please press reset under battery access flap and
adjust set temperature.
Temperature swing - difference between on
and off switching temperatures.
PID control can also be turned on or off using
a jumper on the rear of the unit. PID can
minimise the temperature overshoot.
If the jumper is moved, please press reset
under battery access flap and adjust the set
temperature.
When the batteries need replacing, a battery
symbol will flash on the display.
To clean use a dry cloth only. Do not use any
liquid cleaners.
( ) ) will
5. Specifications
Current rating: 3 (1) A
Voltage: 230V, 50Hz
Switch type: Single pole, single throw (SPST)
Operating
temperature
range: 0ºC to 50ºC
Set temperature
range: 10ºC to 30ºC adjustable in
0.5ºC steps
Complies with: BS EN 60730
Conforms to
directives: 73-23-EEC, 89-336-EEC
Temperature
swing: 1ºC or 0.5ºC
Micro
disconnection: Type 1.B control action
Batteries: 2 x AA alkaline