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The power supply DIN connector is black and contains three contacts for Line, Neutral,
and Ground. This DIN connector has 3 contacts to differentiate it from the control DIN
connector and avoid interchanging of the connectors. The controller contains a bridge
rectifier and will accept AC or DC voltage. The device is not polarized so DC voltage
positive and negative lines can be connected to either L or N terminals.
The control DIN connector is grey. It contains four terminals where 1 and 2 are used for
the shutdown sequence activation and 3 and 4 are used for on demand cleaning and
connect to a differential pressure switch.
POWER
L
SUPPLY
N
Ground Terminal
ELECTRICAL CONNECTIONS
Controls
and
Regulators
1-2 - Shut down cycle
3-4 - On demand cleaning
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