CWT Compact S2 Installation & Maintenance Manual

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Navigation: Product description > Power supply

Battery charging by mains power

In mains powered terminals the 12 V battery is charged by the battery loader that outputs 12 V (13.8 V) to the battery via a separate 6.3 A fuse.

The charger has three indicators:

GREEN ON when 230 V (115 V UK) Mains power is available.
YELLOW ON when charging is in progress.
RED Initially ON when a deeply discharged battery is being charged.

The charger also has a 12 V distribution panel with three output connectors and two 230 V (115 V UK) outputs for optional heating fans.

A diode in the battery charger protects the circuitry if the battery is connected with wrong polarity. In such a case one or both main fuses F1 and F2 on the CPU board may blow.

The cable from the mains power grid is connected to a termination block in the Pedestal. The termination block contains a residual-current device, optionally combined with a fuse.