E
N
G
L
IS
H
Conergy AS
Owners Manual
11
System Maintenance
The Conergy system is designed so that there is little to do regarding system maintenance. Personally
inspecting or servicing the system is not recommended.
Should you decide to personally inspect the roof mounted solar collectors it is essential that you use
all safety devices required to ensure your safety. Glass cleaning usually occurs by natural rainfall.
However, if the installation is in an industrial (or similar) area with high levels of airborne particles
then a qualified person can clean the collector glass with normal window cleaning chemicals and
equipment. If rainwater collection occurs from the same roof on which the solar collectors are located,
extra care must be taken to avoid contamination if using chemical cleaning agents.
In the unusual case that the toughened glass collector covers are broken, Conergy does not advise
replacement of the glass. The entire panel should be replaced to maintain the performance and
integrity of the water heater. Replacement panels should be installed by a qualified person.
The lever on the tank relief valves should be operated at least every six months. Failure to do so may
result in failure of the tank. If water does not discharge freely from the valves they should be checked
by the local service agent. The relief valves and relief valve drain lines must not be blocked. Some
water may discharge during each heating cycle.
Every five years you should contact the local service agent to replace all safety valves to ensure
continued life and operational safety of the system. In locations where the potable water has a Total
Dissolved Solids (TDS) of greater than 600 ppm it is recommended to replace all safety valves every
3 years.
The high quality vitreous enamel lined low carbon steel tanks have a sacrificial anode for long tank
life. This anode should be inspected every few years and be replaced when it has worn out. As a
minimum it is recommended that the anode be changed every 5 years.
Pressure limiting valve
Where the water supply pressure is greater than 550 kPa, a 500 kPa pressure limiting valve must
be fitted to limit the supply pressure. As stated previously – personally servicing the system is
NOT
recommended.
Draining the storage tank
All plumbing work should be carried out by a licensed tradesperson. To drain the water from the
storage tank the following procedure is to be followed:
1. Turn off and isolate the power supply to the electrical element.
2. Turn off the water supply to the water heater.
3. Release excess pressure from the tank by manually opening the pressure &
temperature relief valves.
3.1
3.2
System Maintenance
