Rheem 3805 Series, Owner'S Manual And Installation Instructions, Page: 16 / 28

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Electrical connection
NOTE: The power supply to the heater must not be switched on until the water heater is filled with
water.
All electrical work and permanent wiring must be carried out by a qualified person and in
accordance with the Wiring Rules and all local codes and regulatory authority requirements.
The water heater must be directly connected to a 220V AC (+/-10%), 50 Hz mains power supply. The
water heater must be on its own circuit with an isolating switch installed at the switchboard. A
secondary isolating switch may be installed within reach of the water heater.
A flexible 20 mm conduit is required for the electrical cable to the water heater. The conduit is to be
connected to the unit with a 20 mm terminator. Connect the power supply wires directly to the
terminal block and earth tab connection, ensuring there are no excess wire loops inside the front
cover.
Electrical Connection - external cable to heater.