Electrical Connection - Grundfos CM PM1 Guía Rápida

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4. Electrical connection

The electrical connection should be carried out by an
authorized electrician in accordance with local
regulations.
Warning
Check that the supply voltage and
frequency match the voltage and
frequency on the nameplate.
Warning
Before making any connections in the
unit, make sure that the power supply
has been switched off and that it
cannot be accidentally switched on.
The unit must be connected to an
external mains switch with a contact
gap of at least 3 mm in all poles.
As a precaution, the unit must be
connected to a socket with earth
connection.
We recommend to fit the permanent
installation with an earth leakage
circuit breaker (ELCB) with a tripping
current < 30 mA.
5. Start-up
Do not start the pump until it has been
Caution
filled with liquid.
6. Alarms
If a dry-running alarm has been
activated, find the cause before the
Caution
pump is restarted in order to prevent
damage to the pump.
6.1 Anti-cycling
In case of a very small consumption,
the anti-cycling function may detect
Note
this as cycling and stop the pump
inadvertently. If this occurs, the
function can be disabled.
Enabling and disabling the function
1. Press [Reset] for 3 seconds until "Power on"
starts flashing.
2. Select whether the function should be enabled or
disabled. Each time [Reset] is pressed, the unit
will change between enabled and disabled.
"Pump on" is off when the function is disabled.
"Pump on" is on when the function is enabled.
Press [Reset] for 3 seconds to return to operation.
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