Climit GG BT 25 OF Manual De Instrucciones página 85

(+)
PRESSOSTATO
3 .10 HEAD AVAILABLE
TO SYSTEM (fig . 17 - fig . 17/a)
Residual head for the heating system is
shown as a function of rate of flow in the
graph in fig . 17 .
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the vertical position (fig . 17/a) .
NOTE: The expansion vessel supplied with
the boiler is suitable for heating systems
with a maximum water capacity of 80 litres .
In excess of such capacity, arrange for an
additional expansion vessel .
3 .11 WATER PRESSURE VALVE
(fig . 17/a)
The water pressure valve (C fig . 17/a) inter-
venes, blocking burner functioning, if it
detects that there is insufficient pressure in
the boiler (< 0,6 bar) .
To restore burner functioning, to bring back
the pressure of the boiler at values compri-
se between 1 - 1,2 bar .
4 .1 GAS VALVE (fig . 18)
The boilers are equipped standard with the
SIT 845 SIGMA gas valve (fig . 18) .
CAMERA STAGNA
SEALED CHAMBER
PRESSURE SWITCH
(--)
600
500
400
300
200
100
0
C
VENTILATORE
FAN
20-25
20-25
200 400 600 800
REFERENCE POSITION BY-PASS
A RIFERIMENTO POSIZIONE BY-PASS
Fig . 16
By-pass inserito By-pass on
By-pass off By-pass escluso
30
30
1000 1200 1400 1600
PORTATA (l/h)
FLOW RATE (l/h)
Fig . 17
LE GENDA
A By-pass on
D
B By-pass off
C Water pressure valve
B
Fig . 17/a
IT
ES
ENG
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