Technical data

9
Major Five (5) Year Service
It is recommended a major five (5) year service be conducted on the water
heater. Servicing must be performed by a qualified person. Phone
Aquamax Service or their nearest Accredited Service Agent.
Note: The five (5) year service and routine replacement of any
components, such as the anode and relief valve(s), are not included in the
Aquamax warranty. A charge will be made for this work.
Major five (5) year service actions:
1. Replace pressure temperature relief valve.
2. Inspect and flush expansion control valve (if ECV fitted) and replace
expansion control valve if required.
3. Inspect anode and replace anode if required. If the anode is not
replaced, it should be replaced within three (3) years of this service.
Refer to “Anode” on page 10.
4. Check electric heating unit for excessive calcium build up or corrosion
and replace heating unit if required.
5. Visually check water heater for any potential problems.
6. Inspect all plumbing and electrical connections.
Note: The water heater will need to be drained during this service and will
take some time to reheat the water after servicing has been completed.
Depending upon the power supply connection, hot water may not be
available until the next day.
Pressure Temperature Relief Valve (PTR valve)
The PTR valve is near the top of the water heater and is essential for safe
water heater operation. It is possible for the PTR valve to release a little
water through the drain line during each heating period. This occurs as the
water is heated and expands by approximately 1/50 of its volume.
Continuous leakage of water from the PTR valve and its drain line may
indicate a problem with the water heater (refer to “Pressure Temperature
Relief Valve Running” on page 15).
Warning: Never block the outlet of the PTR valve
or its drain line for any reason.
Operate the easing lever on the PTR valve once every
six months. It is very important you raise and lower
the lever gently.