To Remove Sediment And Limescale; To Replace A Correx Anode; Drain Valve And Tank Access Panel - andrews ECOflo Series Installation And Service Manual

6 Servicing

6.11 To replace a correx anode

6.12 Drain valve and tank access panel

60
Note
Example: Initial inspection shows ½ inch of scale
accumulation. Therefore, the water can be de-scaled
once a year.

6.10.1 To remove sediment and limescale

1. Drain the heater. Refer to DRAINING THE WATER
instructions in this section.
2. Remove outer cover plate from lower side of water heater
jacket.
3. Remove cover and gasket from cleanout opening.
4. Remove lime scale or sediment taking care not to damage
the glass-lining.
5. Inspect cleanout plate gasket: Replace gasket if necessary
(refer to parts list on page 52).
6. Install gasket and cleanout plate. Be sure to draw plate up
tight by tightening bolts securely.
7. Close the drain valve. Open a hot water fixture to allow air to
escape. Open the cold water supply to water heater and
allow the tank to fill. Follow the lighting instructions.
8. Check for water leakage.
9. Install outer jacket cover plate.
The Correx Powered Anodes on this water heater are easily
accessible from the top of the water heater, under the insulation,
towards the front of the appliance by the burner assembly,
making replacement (if necessary) simple and quick. Use the
following procedure to replace the anodes.
1. Drain the heater. Refer to DRAINING THE WATER HEATER
instructions in this section.
2. Flush the heater. Refer to FLUSHING THE WATER HEATER
instructions in this section.
3. Remove the combustion surround top by unlatching.
4. Locate the hexagonal head of the anode(s) beneath the
tank insulation.
5. Remove the anode using a socket of the appropriate size.
Do not use an impact wrench.
6. Replace the anode as required. No pipe tape or sealant is
required when reinstalling the anode.
7. Close the drain valve. Open a hot water fixture to allow air to
escape. Open the cold water supply to water heater and
allow the tank to fill.
8. Check your anode and drain valve for leaks.
9. Replace insulation previously removed.
10. Replace combustion surround top and latch it securely in
place.
11. Follow the lighting instructions.
The water heaters are equipped with a ¾ inch drain valve. An
access panel covers the cleanout opening in the tank, which is
sealed by a gasket and cover.
Issue 2 14/07/16