Useful information

The solar water heater will reach optimum performance two days after the installation. During these two days, it is recommended to avoid hot water consumption, even if there is sunshine.

• Check every year the level of the fluid in the closed circuit.
• In regions with a lot of dust, we recommend that you clean the glass of the collector with water, every two months in order to remove the dust from the glass, unless there is enough rain.
• In case of glass damage, replace the glass immediately to avoid further damage of the collector.
• For all water heaters, the main principles and codes require that the function of the valves is checked once a year. We also recommend that during the same period you check the screws, nuts, plates, moly plugs, screw nuts and support plates, for looseness or any damages, especially when the appliance is installed near the sea. In case of damages, they must be replaced by owner’s expenses.
• During a long absence (such as summer holidays), it is recommended to cover the collector(s) with an opaque cover.
• Once the storage tank is filled in with water, it must not get empty (evacuated) for many hours, and only if there is a need for changing the magnesium rod or the electrical resistance for which it is required a short time, since there is the possibility of creating cracks and detachments in the internal protection of the storage tank.
• The working pressure of the system is 7 Bar. In areas where the water supply pressure exceeds 6 Bar it is necessary to fit a pressure reducer.

IF THE SOLAR HEATER DOESN’T SUPPLY HOT WATER WITH THE SUN

1. Check carefully all  the connections  of  the  solar water heater for leaks.
2. Check the  fluid  level  in  the  closed  circuit  and  fill  it,  if  necessary  (see  instructions,  page 16).
3. Check the  connection  tubes  (05)  and  (18)  to  ensure  that  they  are  not  bented  or twisted.
4. Ensure that there  is  no air trapped inside  the collector and the storage tank.
5. Ensure that  the  solar  water  heater  is  installed in horizontal position.
6. Ensure that the supply of hot water is not connected to a supply of cold water.
7. Check the plumbing  piping  of your house  as well as the taps for slow leaks.
8. Ensure that  the  storage  tank’s  and  collector’s connections  are properly  made  and they are fully water tight.
9. Ensure that there is no obstacle (building, tree etc) shading the solar water heater, or  any part of it.
10. If there  is  a  mixing  valve  for  hot  /  cold  water  in  the  outlet  of  the  boiler,  please  check  that  it  is  correctly  adjusted  and  it  is functioning. The  following  should  be  also  taken  into consideration:
11. The consumption  of  hot  water  is  bigger  than the appliance’s capacity.
12. Weather conditions.
13. Huge consumption  of  hot  water  during  the night.
14. The customer  didn’t  understand  the  use  of the electric resistance.
15. Customer’s expectations  about  the  performance of the system. If  your  solar  water  heater  continues  not  to  supply  hot  water,  contact  your  local  distributor.

IF THE SOLAR WATER HEATER DOESN’T SUPPLY HOT WATER WITH  THE ELECTRIC RESISTANCE

1. Turn off the power supply and remove the resistance’s cover.
2. Check the safety thermal  switch F on the  thermostat, which has to be pushed in.
3. Check the  wiring between  the thermostat  and the electric resistance.
4. Check if  the  thermostat  is  adjusted  in  a  lower temperature than the desired one.
5. Check the resistance for any damage.
6. Check the main power supply.
7. Turn the power supply on and check if the electric wires are properly connected to the  relevant poles of the resistance. A certified electrician must do all the electrical  connections and checkings.

Τo replace the magnesium rod:

1. Turn the power supply off.
2. Empty the water from the storage tank.
3. Remove the electric resistance and unbolt the  old  worn  magnesium  rod  and  fix  the  new  one.  Fix  afterwards  the  electric  resistance  after  you  have  checked  that  the  elastic  flange  is  not  worn-out.  If  the  elastic  flange  is  wornout,  replace  it  with  a new one.
4. Turn on  the water  supply and  check  that  the tank is completely water tight.
5. After the tank is completely filled, switch on the main power supply