39
TABLE OF INFORMATION DISPLAYED
Type No. Description
Range
U/M
Step
In
0.0 SW version
In
0.1 External sensor (SE)
- 9 .. 99
°C
1
In
0.2 Delivery sensor
temperature (SM)
- 9 .. 99
°C
1
In
0.3 Exhaust temperature
(SF)
- 9 .. 99
°C
1
In
0.4
Domestic hot water
sensor temperature
(SS)
- 9 .. 99
°C
1
In
0.5 AUX auxiliary sensor
- 9 .. 99
°C
1
In
0.6 Actual heating SET
temperature
Par. 13 …
Par. 14
°C
1
In
0.7 Power level
0 .. 99
%
1
In
0.8 DHW Flow rate
0 .. 99
l/min
0.1
In
0.9
Water pressure
transducer reading
(when fitted)
0 .. 99
bar
0.1
In
1.0 Actual speed fan
number
0 .. 99
RPM x 100
1
TABLE OF COUNTER DISPLAYED
Type No. Description
Range
U/M
Step
CO
0.0
total no. of
boiler operat-
ing hours
0 .. 99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
CO
0.1
total no. of
burner oper-
ating hours
0 .. 99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
CO
0.2
total no. of
burner igni-
tions
0 .. 99
h x 1000
0.1; from 0.0
to 9.9; 1; from
10 to 99
CO
0.3 total no. faults
0 .. 99
x 1
1
CO
0.4
total no. of
times installer
parameters
"tS"accessed
0 .. 99
x 1
1
CO
0.5
total no. of
times OEM
parameters
accessed
0 .. 99
x 1
1
CO
0.6
Countdown
to the next
service
1 .. 199
months
1
CO
0.7 total no. of
calibrations
1 .. 199
x 1
1
TABLE OF ACTIVATED ALARMS/FAULTS
Type No. Description
AL
00 Last activated alarm/fault
AL
01 Last but one activated alarm/fault
AL
02 Third from last activated alarm/fault
AL
03 Previous activated alarm/fault
AL
04 Previous activated alarm/fault
AL
05 Previous activated alarm/fault
AL
06 Previous activated alarm/fault
AL
07 Previous activated alarm/fault
AL
08 Previous activated alarm/fault
AL
09 Previous activated alarm/fault
7.6
Checks
7.6.1
Chimney sweep function
The chimney sweeper function is used by the qualified mainte-
nance technician to check the mains gas pressure, detect the
combustion parameters and to measure the combustion effi-
ciency. A combustion analysis should not be conducted until a
satisfactory inlet working pressure test has been completed.
This function lasts 15 minutes and is activated by proceeding
as follows:
– if the panel (2) has not already been removed, remove the
two screws (1), pull the front panel (2) forwards and release it
from the top by lifting it
1
2
Fig. 38
– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
3
a
b
5
4
Fig. 39