8 - English
English
Brief description of the IRT 30
3.3 Operating controls
The IRT 30 can be controlled on two levels (refer to the fold-out
page, figure A and B):
1. With the flap closed (figure A); you now have access to:
- The temperature adjustment knob, for manual adjustment
of the temperature,
- the + and – push buttons, for temporary adjustment of the
temperature within the clock program.
2. With the flap open (figure B); you now have access to
10 operating controls:
- One adjustable program knob, by means of which you can
scroll through a program and raise or lower the values,
- Nine push buttons for several functions like time setting,
day setting, program setting etc.
The principle of this operation is ‘push and turn’:
-
Select the key of the function you want to change and hold it.
- Simultaneously turn the program knob clockwise to raise
the value, or:
- Simultaneously turn the program knob counter-clockwise
to lower the value.
In chapter 4, operation will be explained in detail.
3.4 Information on the display
The screen (also referred to as display) shows information about
the operation of the boiler and the thermostat by means of digits
and symbols.The display in figure 3-1 shows all possible symbols.
Beside this, the meaning of each symbol is described.
figure 3-1
