Flow Switch Safety Valve; Smoke Stat; System Available Head; Mains Electricity Connection - Sime Planet Dewy 30 BFT Notice De Montage, D'utilisation Et D'entretien

– Ignition electrode fails to spark
ENG
In the boiler, only the gas to the burner
is seen to open. After 10 sec. the war-
FR
ning light indicating equipment "lock-
out" lights up.
This may be due to a break in the wire of
the electrode or to the wire not properly
fastened to the electric terminal of the
control box;
– No detection of flame
The continuous spark discharge of the
electrode is noted starting from ignition
even though the burner is lit.
Af t er 10 seconds have elapsed, the
sparks cease, the burner goes out, and
the warning light indicating equipment
"lock-out" lights up.
There could have a break in the wire of
the sensing electrode or the electrode
itself is touching earth: the electrode is
worn out and needs replacing. The con-
trol box is defective.
When there is a sudden voltage failure, the
burner shuts out immediately; when power
supply returns, the boiler will start up again
automatically.
3.4 FLOW SWITCH
SAFETY VALVE
A flow switch safety valve intervenes,
blocking the operation of the burner if the
boiler is without water due to the formation
of an air lock in the heat exchanger or if the
circulator is not working, or because the
"Aqua Guard" filter is obstructed with impu-
rities.
32
"FOOT"
20
17
13
10
6.7
3.3
NOTE: If replacing the flow switch valve,
make sure that the arrow stamped on the
valve points in the same direction as the
flow of water.
3.5

SMOKE STAT

To protect the polypropylene conduit from
smoke the appliance is provided with an
exhaust thermostat (11 fig. 3).
3.6

SYSTEM AVAILABLE HEAD

The head available for the heating plant is
Connector "TA"
Connettore J2
TA
TA
KEY
TA-TA1 Zone room stat
VZ-VZ1 Zone gas valve
R-R1 Zone relay
CR-CR1 Zone microvalve or relay contact
600
500
400
300
200
100
0
200 400 600
0.88 2.64
L
TA
CR CR1
VZ
R
N
NOTA: I relé vengono impiegati solo
NOTE: Relays are used only if the area valves
nel caso le valvole di zona siano
have no microswitches.
prive di micro.
con by-pass
WITH BY-PASS
senza by-pass
WITHOUT BY-PASS
800 1000 1200 1400 1600
FLOW RATE (l/h)
PORTATA (l/h)
4.4 6. 1 6 US gal/min
shown as a function of the flow in graph in
fig. 21.
3.7 MAINS ELECTRICITY
CONNECTION
Use a separate electricity supply to con-
nect the room stats and relative zone val-
ves.
The micro or relay contact connection is
made to TA-CR-SE (J2) connector of the cir-
cuit board after having removed the jum-
per (fig. 22).
TA
1
VZ
R
1 1
Fig. 21
Fig. 22