Sime Murelle 25/55 OF ErP, Installer'S Instructions

Page: 82 / 96

82
3.9 WATER FLOW GUAGE
The.water.flow.gauge.(4.fig..3).intervenes,.
blocking. burner. functioning,. if. it. detects.
that. there. is. insufficient. water. circulating.
in. the. primary. circuit. and. in. the. case. the.
pump.not.functions.
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.
3.10 HEAD AVAILABLE TO SYSTEM
(fig. 17)
Residual. head. for. the. heating. system. is.
shown. as. a. function. of. rate. of. flow. in. the.
graph.in.fig..17..
0
600
200 1200 1000 800 600 400
PORTATA.(l/h)
PREV
ALENZA.RESIDUA.(mbar)
500
400
100
200
300
Mur
el
le
.25/55.OF.ErP
25/55 OF ErP
Fig..17
RESIDUAL
.HEAD
.(mbar)
FLOW.RATE.(l/h)