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Operation and maintenance instructions
4.1 DIGITAL OUTPUTS
The digital outputs DO7 to DO11 may be used to activate a
relay (1 N/O contact. Input voltage: 24 V DC). See gure 1 for
example with DO7.: output for heat circulator pump, gure 2
for DO9: output for alarm indication, gure 3 for DO10pressure
alarm indication. Same principle for DO8 and DO11.
Fig. 3
Fig. 2
Fig. 1
4.2 PRESSURE SWITCHES
In application where pressure switches are used, follow gure
4 wiring, with pressure switch for supply lter connected on X4
and the exhaust one on X2.
N.B.: connectors X2/X4 may be ordered separetely
(CID522223) if other pressure switches are used instead of the
ones in the dedicated kit CID360025.
Fig. 4
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