Description of functioning
t e c h n i c a l
First 2 digits indicate the boiler type depending on type of water pressure detector, if
the boiler uses water pressure switch, the boiler will be 00 and if the boiler uses water
pressure sensor
(digital pressure gauge)
the boiler will be 04.
Second 2 digits are explained in following tables:
First
Number
from
“YY”
Heating Circuit Type
(CA)
Heating Plumb
Delay
(Tpb)
Plumb Cycling (PC)
rA
SU
1min.
2-99min.
OFF
ON
0
x
x
x
1
x
x
x
2
x
x
x
3
x
x
x
4
x
x
x
5
x
x
x
6
x
x
x
7
x
x
x
23
