Specifications

TM013 Vulcan Electric Service Instructions REV: D

D.O.I.: 05/09

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Element – Top and Bottom

Elevated temperatures may be present during element removal process.

Personal Protective Equipment should be worn to prevent the risk of

scalding.

When replacing an element on a heater with a cylinder barrel that does

not have an earth tab (refer to page 10) ensure that the metal surround of

the element flange is in direct contact with the cylinder barrel flange thus

ensuring a good Earthing contact and conduct an earth continuity test as

required by AS/NZS 3000 6.3.3.2.

When a fault or leak is traced to the element, the water heater should be drained to

prevent damage to flooring or floor coverings by accidental flooding.

1. Drain the water heater. Refer to „Draining the Water Heater‟ procedure on page 27.

2. When the water heater is drained, undo the four element screws, removing thermostat

clamp first.

3. Withdraw the element. Care must be taken to ensure the loop of the element does not

catch in the cylinder opening and open out inside the cylinder.

NOTE: Do not “cut off” the element and leave a portion inside the cylinder

4. Clean around cylinder fitting, fit gasket to new element and slide the element into the

cylinder (reverse to step 3) taking care that it is in the correct orientation. See element

flange for orientation directions.

5. Replace screws and thermostat clamp and tighten.

6. Models manufactured after 7/11/05 without an element flange earth

tab.

The earthing of the internal storage cylinder relies on a good

electrical contact between the metal surround of the element flange

and the cylinder barrel flange.

An earth continuity test should be performed whenever an element

or element gasket is replaced, adjusted or serviced in any way. This

continuity test is performed between the heaters internal storage

cylinder and the main earth terminal of the water heater with a

resulting reading of not more than 0.5 ohms as required by AS/NZS

3000 6.3.3.2.

7. Restore cold water supply and fill the storage tank. Release air by gently lifting the

easing lever on the T&PR valve until water runs from the drain or opening hot taps.

8. Check for water leaks around the element flange.

9. Conduct an electrical insulation test. (Refer to page 23)

10. Replace access cover securely and restore electrical supply.