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USER MANUAL
ES SERIES HUMIDIFIER ELECTRICAL POWER CONNECTIONS AND
SECURITY
Connect power supply to the humidifier terminal block linking 230V to R and N terminals
for single-phase models and 400V + neutral to terminals RST and N for 3-phase models.
It is mandatory to connect the terminal marked by the yellow/green and by PE mark to
power supply earth. If necessary, verify the efficiency of the ground system.
Leave the bridge between terminals 60 and 61 or change it, if necessary, with an emergency
normally open contact.
Terminal blocks 62 and 63 are predisposed for fan unit power supply, in case you install that, please
refer to the user manual attached to the fan unit.
ES AND OEM SERIES CONTROL SIGNALS AND SENSORS CONNECTIONS
Humidifier works in five functioning modes set by software parameter S9, described at chap. 3 and
by specific electrical connections.
Moreover it is required the enabling of digital input terminal blocks 1 and 2 on 100 Master card for
all functioning modes. (in case it’s unnecessary using of external enabling just make bridge on
terminal blocks 1 and 2 on 100 Master). If enabling is missing the display will show OFF alternate
to normal visualization.
Below description of specific connections for each functioning mode.
In case it’s needed to connect 4-20mA probes not supplied by PEGO S.r.l. please call
the technical dept. to verify hardware compatibility of the probe with humidifier.
- ON/OFF MODE:
This kind of functioning allows steam production in only 2 modes: total lack of production or
production at maximum. Enabling is generally provided by a free-voltage contact coming from
an electrical panel controlled by a humidity sensor. To set the second level variable S9=0 and
connect the enabling (normally open free-voltage contact) to terminal blocks 1 and 2 on 100
Master.
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