Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
7 Commissioning
83311002 1/2018-03 La
67-132
7.5 Readjustment of combustion
If necessary, the combustion values can subsequently be corrected.
Parameter
73
can only be activated within 8 minutes of switching on the appli-
ance. Switch on the appliance once again, if necessary.
Pr3
: set stage 1
Activate parameter level [ch. 6.3].
Select parameter
73
.
Press [ENTER].
Turn dial knob until
Pr3
is displayed.
Press [ENTER].
Pr3
is activated.
Burner starts in accordance with the programme sequence and drives to
stage 1.
The mixing pressure at stage 1 must not drop below 6 mbar.
Check combustion values
Determine combustion limit and set excess air using parameter
78
Pr5
: set stage 2
Press [ENTER].
Turn dial knob until
Pr5
is displayed.
Press [ENTER].
Pr5
is activated.
Burner starts in accordance with the programme sequence and drives to
stage 2.
Check combustion values
Determine combustion limit and set excess air using parameter
77
End program
Select parameter
73
.
Press [ENTER].
Turn dial knob until
OFF
is displayed.
Press [ENTER].
Program is terminated.