37
EN
10.2 Electronic control version BIO-CIRCLE-i
As an alternative to the controller version E-GT 1.1, controllers with BIO-CIRCLE-i technology are
used in some units.
Connections X1 Signal light
X2 Pump switch
X3 not assigned
X4 Service interface
X5a sensor plug (level switch, temperature sensor 1 and 2)
X5b Sensor plug (level sensor, temperature switch)
X6 Heater
X7 Air pump
X8 Liquid pump
X9 Power cable
Error
Red LED flashing: Low level, refill device.
Red LED permanently on: Disconnect device from power supply, check for overheating, check
float switch and level, allow to cool down if necessary and reconnect
to power supply for reset. If a reset is not possible, please see error
description on page 35 .
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