Ozroll OZS251E - Hot Water Storage Tank Connection; System Connection Requirements; Expansion Control Valve ( ECV ); Drain Cock

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G. HOT WATER STORAGE CYLINDER CONNECTION

G1 . SYSTEM CONNECTION REQUIREMENTS

The plumbing connection to the mains pressure supply line MUST include the following:

• Isolating valve

• Non return valve

OR a duo isolating non-return valve in lieu of two individual valves

• Pressure limiting or pressure reduction valve

• Expansion control valve

• Drain cock (some areas only)

• Disconnecting union

• Line strainer ( if required to filter large particulates only )

• Correct pipe size and specifications. Note that only dezincification resistant (DR) brass fittings can be used

for potable water plumbing.

Note for some States and local council areas: It is a local requirement that an expansion control valve be fitted

on the cold water supply line between the non return valve and the water heater. Check with your local authori-

ties to see if this is required and fit according to local or State regulations.

Step 6. Push bracket towards inner tank to tension bracket

and clip thermostat under bracket in position.

The element, bracket and thermostat mounting is complete

Refer to G9 - Connection to Electricity for wiring diagram.