24
To determine the combustion efciency
one must make the following measurements:
- measurement of the combustion air temperature
taken in the relevant hole 2.
1
1
B
C
COAXIAL PIPES
SEPARATE PIPES
PIPES Ø 80 TYPE B22
Air
drop
Air
Air
Air
Air
probe
probe
probe
drop
drop
2
2
3.11 - MEASUREMENT OF COMBUSTION EFFICIENCY DURING INSTALLATION
- measurement of the ue gas temperature and
content of CO
2
taken in the relevant hole 1.
Take the measurements with the generator in
steady state conditions (see par. 3.11.1).
ATTENTION!
Function reserved for Unical AG
S.p.A. Authorised Assistance Centres
only.
3.11.1- ACTIVATION OF THE CALIBRATION FUNCTION
3.11.2 - POSITIONING THE PROBES
1 ACTIVATION
By pressing the button (D) for 3 seconds, the
calibration function is activated. Release it when
the SERVICE symbol appears, Do not press it
for more than 9’’
This function is not activated if there is a block or
domestic hot water request.
2 MAXIMUM OUTPUT
By turning the knob (B) onto MAX, the boiler will
operate at maximum output:
- 3 illuminated symbols
4 DISABLING
The “calibration” function stays active for 15 minutes.
To disable the CALIBRATION function before the
time elapses, switch the boiler on and off again.
3 MINIMUM OUTPUT
By turning the knob (B) in position , the boiler
will operate at minimum output:
- 2 illuminated symbols
- 1 ashing
x 3’’
service
The user is NOT authorised to activate
the function described below.
M
I
N
service
MAX
I
N
service
A