Sime MURELLE HE 25 BF Manual De Instrucciones página 89

3.8 WATER FLOW
GUAGE
The water flow gauge (8 fig. 4) intervenes,
blocking burner functioning, if it detects
that there is insufficient water circulating in
the primary circuit (< 450 l/h).
To res t ore burner functioning, check
600
500
400
300
200
100
0
600
500
400
300
200
100
0
system pressure and the functioning of the
pump and the flow switch, and the cleaning
of the "Aqua Guard Filter System" filter.
N.B.: when replacing the flow meter valve,
verify that the arrow printed on its body
is pointing in the same direction of the
water flow.
200 400 600
12 BFT - 12 SYSTEM
200 400 600
PORTATA (l/h)
By-pass on
By-pass inserito
con by-pass
By-pass on
senza by-pass By-pass off
35 BF - TOP 35 BF
30 BF - TOP 30 BF
25 BF - TOP 25 BF
800 1000
PORTATA (l/h)
FLOW RATE (l/h)
con by-pass
By-pass on
senza by-pass By-pass off
35 BFT - TOP 30 BFT - 35 SYSTEM
30 BFT - TOP 25 BFT - 30 SYSTEM
20/25 BFT - 20 SYSTEM
800 1000
FLOW RATE (l/h)
By-pass off
By-pass escluso
3.9 HEAD AVAILABLE TO SYSTEM
Residual head for the heating system is
shown as a function of rate of flow in the
graph in fig. 14.
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the vertical position (fig. 15).
1200
1200
Fig. 14
Fig. 15
ES
PT
GB
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