
14
Power supply
Cable grommets “
A
”
INTERNAL
TOP VIEW
Safety thermostat sensor
to socket in boiler
PE
N
L
Burner reset
CH CIRCUIT 1 mixer valve
CH CIRCUIT 1 temp. sensor
SENSOR side
LOAD side
STORAGE CYLINDER temp. sensor
BOILER
temp. sensor
ROOM UNIT 1
ROOM UNIT 2
0-10V input / Room thermostat
OUTDOOR temp. sensor
CH CIRCUIT 1 pump
STORAGE CYLINDER
pump
Main board
BURNER
Safety chain
QX1 RELAY programmable output
Programmable SENSOR inputs
12 V room unit power supply
LPB data communications*
* For connecting up to 16
cascaded boilers. Lmax between
each controller = 250 metres
QX1
M
BX2
M
BX1
M
B1
M
H1
M
B9
M
B3
M
B2
MB
DB
CL-
CL+
CL-
CL+
G+
N
Q2
N
Q3
SK2
SK1
4
S3
T2
T1
N
N
L1
L
L1 S3
N
Y2
Y1 N
Cable grommets “
B
”
Cable guides “
C
”
Cable guides “
C
”
RIELLOtech CLIMA COMFORT