Installation manual

40 Installation Manual for VRC 400 weather compensator
11 Start-up
Display Setting by turning the dial
Temperature level time
window H1
(only when temperature
levels are activated)
Temperature level time
window H2
(only when temperature lev-
els are activated)
Temperature level time
window H3
(only when temperature lev-
els are activated)
Table 11.1 System parameters
11.2 Service/diagnostic level
Access the service/diagnostic level by
pressing the P button and the dial.
• Press the P button and the dial simul-
taneously for 3 seconds.
First, a heating request for 50 °C is trig-
gered to test communication with the
boiler.
Then you can select all the test options
by pressing the dial (see table 11.2). When
you press the P button the display
returns to basic mode.
You can select the following tests: