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Instructions on commissioning, maintenance, and troubleshooting for auroSTOR 0020111119_02
Maintenance work
Maintenance interval
Solar circuit
Check the system pressure at the gauge on the solar pump station.
Annually
Visually check pipe work and connections for solar fluid leaks.
Annually
Check the solar fluid discharge pipe is secure and canister is empty.
Annually
If necessary following above checks arrange for corrective work to be carried out.
Ensure system cannot go into stagnation. Avoid middle of day (cover collectors if possible).
Depressurise the system. NOTE: Drain fluid into suitable canisters.
Carry out any repairs to correct any leaks found.
Check the pH value of the solar fluid (with litmus paper, pH > 7.5).
Annually
Check the frost protection of the solar fluid (use the Vaillant solar fluid tester).
Annually
Check the operation of the solar pump.
Annually
Check the flow rate in the solar circuit is set correctly for the system.
Annually
Collector Array
Visual inspection of the collector, collector fastenings and connections.
Visual inspection only from suitable safe location.
Annually
Check the pipe insulation for damage and arrange repair if necessary.
Annually
Solar controller
Check and record solar gains. Reset as necessary.
Annually
Check the sensors are secure and temperatures correctly displayed (KOL1, SP1 and SP2).
Annually
Check settings are correct (see controller manual for details).
Annually
Check the time programme and temperature settings for auxiliary reheat are correct.
Annually
Cylinder
Check all connections to ensure that there are no leaks.
Annually
Check the temperature and pressure relief valve.
Annually
Check the expansion relief valve.
Annually
Check the charge pressure of the hot water expansion vessel.
Annually
Check water flow rates are correct (check and clean filters as necessary).
Annually
Ensure set temperatures are correct
Annually
Check the charge pressure of the expansion vessel, re-pressurise as necessary.
Annually
Check the function of the hot water thermostat mixer.
Annually
Fill in the service section of the Benchmark cylinder commissioning checklist.
Annually
Tab. 8.1 Maintenance checklist
8 Inspection and maintenance
