101
ES
PT
ENG
earth or badly worn and must be repla-
ced. The electronic board is faulty.
In the case of a sudden lack of voltage, the
burner will immediately switch off.
When voltage returns, the boiler will auto-
matically start up again.
3.9
HEAD AVAILABLE
TO SYSTEM (fig. 14 - fig. 14/a)
Residual head for the heating system is
shown as a function of rate of flow in the
graph in fig. 14.
The speed of the modulating pump system
WILO-YONOS PARA PWM is set as default
(installation parameter
PAR 13 = - -
).
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the ver tical position (fig.
14/a).
POMPA MODULANTE
WILO-YONOS PARA PWM (M)
0
600
200
1200
1000
800
600
400
PORTATA (l/h)
PREV
ALENZA RESIDU
A (mbar)
500
400
100
200
300
Mur
elle HM 35 R (M)
700
800
POMPA FISSA
con by-pass
senza by-pass
A
B
C
RIFERIMENTO POSIZIONE BY-PASS
D
Fig. 14/a
Fig. 14
RESIDU
AL
HEAD (mbar)
FLOW RATE (l/h)
By-pass inserted
By-pass excluded
REFERENCE BY-PASS POSITION
KEY
A
By-pass inserted
B By-pass
excluded
C Water pressure transducer
D
Automatic air vent
FIXED PUMP
MODULATING PUMP
WILO-YONOS PARA PWM (M)
Summary of Contents for murelle HE 35 R
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