G7. DRAIN COCK
A drain cock assists draining of the cylinder to remove sludge. Some areas of Australia require a drain cock to
be fitted in the cold water supply. Check with your local authorities
G8. LINE STRAINER
The line strainer filters out small particles. It is not a filter designed to hold back
fine particles. A line strainer is important where the water supply might have grit in it, but not all systems in-
corporate a line strainer.
Water enters from the left, through the bottom of the cylindrical stainless steel mesh screen, and passes
through the screen leaving behind particles that are too large to pass through the mesh. A line strainer is im-
portant with systems that have a pressure limiting valve. The close fitting moving parts of the pressure limiting
valve would be damaged by grit and prevented from functioning.
G9. CONNECTION TO ELECTRICITY
Electrical connections are for single phase 230 V ac 50 Hz. Connections to electricity MUST either be carried
out by a licensed electrician OR, depending on the electrical connections required, may be undertaken by a
Licensed plumber with a limited electrical license. Any electrical work MUST always be carried out by properly
licensed persons. Booster Heating elements require a 15 A service. The tanks have 2 green/yellow striped
earth wires – 1 connected from the inner tank to the outer tank and 1 connected to the booster electric element
housing. The earth wires are required to have excellent electrical contact with all surfaces and should also be
mounted with star shaped washers to scratch through any coating and provide perfect electrical contact.
WARNING
– INSTALLERS / ELECTRICIANS MUST be properly qualified and licenced to carry out any electrical
work on the hot water system. UNDER NO CIRCUMSTANCES can electrical work be carried out without suitable
qualifications and the appropriate electrical licence
10
11
Electrical Diagram – Wiring Element / thermostat
Fix to inner earth
stud with
star washer
Fix with star
washer and
nut to cover
Label on inside cover of booster housing
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