Atmos Heating Systems
27
5 Maintenance
Storage tank
Annually check the sensor wiring and top up the tank. See §4.14
Collectors
Annually check the collector. Remove any debris and check that the collector is still firmly
fixed. Check that no water can leak through the roof.
Pipes
Do a yearly check on the pipes to ensure that the pipe insulation is still in place and
properly secured and that the collector pipes are correctly sloping down towards the
storage tank at all points.
Faults
The dial on the front of the tank gives an indication of the amount of heat stored in the
tank. If the storage tank is not collecting heat even though the sun shines this indicates a
fault.
To check for any malfunction follow the following procedure. This will only work when the
sun is shining.
Ensure the storage tank is cold by drawing off hot water. This may take 10 minutes if the
storage tank is very warm to start with.
1. Is there 240V on the socket?
Yes=>2, No=>13
2. Is there 12V feed to the storage tank?
Yes=>3. No=>4
3. Are the wires from the collector thermostat and the 12V feed to the tank connected
correctly?
Yes=>6. No=>5
4. The 12V adaptor is faulty. Atmos can supply a replacement.
5. Ensure the wires are connected correctly. The wires from the collector thermostat are
interchangeable. Does the pump start up within 10 minutes?
Yes=>6, No=>7
6. Does the red pipe become warm after a few minutes?
No=>8
7. Disconnect the wires to the collector thermostat from the connector block on the tank
and then connect the two terminals on this block with a short piece of wire. Does the
pump start up?
Yes=>9, No=>10
8. Unplug the 12V adaptor from the socket. Top up the tank with water. Plug the 12V
adaptor back into the socket. Does warm water begin to flow into the tank after a few
minutes?
Yes=>12, No=>11
9. The collector thermostat is faulty or the wiring to the collector thermostat is
interrupted.
10. There is a fault with the storage tank pump or the wiring to the pump is interrupted.
11. Are the red pipe and the blue pipe to the collectors sloping back towards the storage
tank at all points?
Yes=>14. No=>15
12. Check the system for leakage.
13. Ensure there is 240V on the socket.
14. Check the flow restrictors for blockages. There is one flow restrictor for each collector
and one for the storage tank.
15. Ensure that the red pipe and the blue pipe to the collectors are sloping back towards
the storage tank at all points. Flush the pump on the storage tank as described in
§5.15