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SCE-GTM-SS​ (ETOR-55) Sensor Wiring for SCE-120 (ETO2)

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Connecting multiple gutter sensors to SCE-120

If the ETO2 is configured as a one-zone application - you can connect two ETOR-55 sensors and one ambient temperature sensor to control this zone.

If the ETO2 is configured as a two-zone application – you can connect only one ETOR-55 per zone and one ambient temperature sensor for the combined application.

It is not possible to connect two ETOR-55 sensors to a set of terminals intended for one sensor - all readings would be wrong. Only exception is the terminals for sensor heating.

Written by Anatoliy Isayenko
Posted on
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