Electric Diagrams - Biasi Riva Plus Combi Installation & Operation Instructions

5.

Electric Diagrams

Electric supply
terminal block
L N
1 2 3
bn gny e bu
rd bu
n b u b d r
bk rd b u b u
g y g y
bu wh rd rd rd
rd
bu
rd
wh
rd
D.h.w.
D.h.w. NTC
flow switch
bk – black
bn – brown
bu – blue
gnye – green/yellow
12 RIVA PLUS COMBI MANUAL
Flue thermostat
rd
rd
Fan
rd
M
rd
~
wh gy gnye
gnye
e y n g e
wh
bk
rd
bk bk
b u g y
gnye
COM
t
bk bu
bk bu
t
NO
Primary circuit
flow switch
C.h. temperature
probe NTC
gy – grey
rd – red
wh - white
ye - yellow
Air pressure
switch
NC NO
bn bu
COM
bk
y n g
ye bk wh gy bu
rd
rd
wh
gy
bk
bu
bn
gy
wh
bu
bk
rd
bu
rd
wh bk rd
3
1
gny e gy
M
2
~
M
~
Three-way
diverter
valve
Pump
Caution:
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous
operation.
Verify proper operation after servicing.
Ignition Flame detection
electrodes electrode
ye wh bu
bk gy rd
rd
bk
rd
bu
gy
gy
Gas valve