BLACK CHROME XII Owner’s Manual Supplement
3
33-4063 Revision C Issue Date: June 2003
MAINTENANCE
Major Service (usually Every Six Years)
This service should be performed at least every Six years.
1. Check closed circuit liquid level and pressure test the closed circuit.
2. Replace pressure/temperature operated relief valve
3. Flush cold water relief valve.
4. Where fitted check electric element for excessive calcium build up or corrosion. Replace if necessary.
5. Check unit generally, i.e. broken glass, excessive dust build-up, shading etc.
6. Carefully inspect all connections.
7. Flush out tank sediment build-up (if any).
8. Replace anode if necessary.
9. For units fitted with a Gas Booster refer to the Gas Booster Owner’s Manual for service instructions.
It is recommended that the major service be carried out by Solahart or your local Solahart Dealer.
Anode Replacement Period
Your Solahart tank is a cylinder lined with two coats of high quality ceramic material. Considering all metals
corrode in hot water, the sacrificial anode is a low cost item that is simple to replace and will protect the main
cylinder from corrosion. Bare metal tanks (eg. copper, stainless steel) generally do not have an anode and
therefore rely on natural defences which are often broken down by many domestic water supplies. Replacing the
anode is less expensive than replacing the complete tank.
In areas where the total dissolved solids (TDS) is 1000 ppm or less the sacrificial magnesium anode must be
changed at least every twelve years. More regular changes will be necessary where the water TDS is more than
1000 ppm. Water quality details should be obtained from the water authority where special water supplies are
used. Consult your local Solahart dealer for advice regarding anode replacement periods if the TDS in your area
is higher than 1000 ppm.
To replace the anode, the Solahart serviceman will do the following:
1. Turn off the electrical power or gas supply (as applicable).
2. Turn off the water supply.
3. Release excess water pressure at the pressure/temperature relief value by turning the valve top.
4. Remove the terminal cover plate or flue cowl (units fitted with gas booster).
5. Disconnect the earth wire from the anode nut.
6. Unscrew the hexagon nut located to the left of the electric element and withdraw the old anode.
7. Insert the new anode assembly into the cylinder.
8. Tighten the anode, reconnect earth cable, turn on the water supply, check that the anode nut joint is
watertight and refit the cover (or flue terminal). Open a hot water tap to dispel air from the tank, or at the
pressure/temperature operated relief value.
9. Turn on the electrical or gas supply (as applicable).
WARNING:
Do not turn power on until the heater is filled with water or damage to the heating element will result.
