3.8
WATER FLOW SWITCH
The water flow gauge (15 fig. 3) intervenes,
blocking burner functioning, if it detects
that there is insufficient water circulating in
the primary circuit (< 450 l/h).
To r es t or e burner functioning, check
system pressure and the functioning of the
pump and the flow switch, and the cleaning
of the “Aqua Guard Filter System” filter.
N.B. on system boilers it is important
that if the flow switch assembly is chan-
ged, it is fitted with the arrow pointing in
the correct direction.
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.
The speed of the modulating pump is set
as default (installation parameter
PAR
13=1
).
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the vertical position (fig. 15).
A
B
C
RIFERIMENTO POSIZIONE BY-PASS
Fig. 15
Fig. 14
REFERENCE BY-PASS POSITION
KEY
A
By-pass inserted
B BY-pass excluded
C Water pressure transducer
I-HE 35 MF & E-HE 35 MF
I-HE 35 MF & E-HE 35 MF
I-HE 35 MF & E-HE 35 MF
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Summary of Contents for Green Planet I-HE 35 MF
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