10
1. Switch the cascade controller N1 to emissions test, then press and hold
down the rotary selector (see RK-2 / RK-4 installation and operating
instructions, page 112).
2. Switch ON the ON/OFF switch
!
.
Remove the rotary selector
"
from the boiler thermostat.
Push down the high limit safety cut-out test button using a suitable
instrument, for example a phase tester, and hold it down until the limiter
responds.
Replace the rotary selector on the boiler thermostat.
Repeat the test for N2 and the boiler control unit of boiler no. 2.
Reset the high limit safety cut-out after the boiler has cooled down.
End of function check.
Basic heating system setup
Display
$
Burner fault
%
Boiler temperature display
High limit safety cut-out test
30
50
40
50
60
70
80
90
°C
0
I
$
%
!
"
&
40
50
60
70
80
90
°C
Aperture
High limit safety
cut-out test button
Control
!
ON/OFF switch
"
Boiler thermostat
1)
&
High limit safety cut-out reset
only for heating contractors
1)
adjustable to 90 °C
High limit safety
cut-out test
-
I
Shutting down
the system
0
-
Flue gas test
by your local flue
gas inspector
I
80 °C
Heating without
DHW heating
I
38 -80 °C
