KAIROS THERMO DR-2, Instruction Manual For Authorized Service Personnel

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8
GB
ANTI-LEGIONELLA RECOMMENDATIONS
Legionella are small rod shaped bacteria which are a
natural constituent of all fresh waters. Legionaries’ di-
sease is a pneumonia infection caused by inhaling of
Legionella species. Long periods of water stagnation
should be avoided; it means the solar system should
be used or flushed at least weekly.
The European standard CEN/TR 16355 gives re-
commendations for good practice concerning the
prevention of Legionella growth in drinking water
installations but existing national regulations remain
in force.
OPERATION, CHECKS AND MAINTENANCE
IN CASE OF ANY EMERGENCY PLEASE CLOSE
WATER SUPPLY AND SHUT DOWN ELECTRI-
CAL SUPPLY. IMMEDIATELY CONTACT AU-
THORIZED SERVICE PERSONNEL
Instructions for system operation
In general, the solar heating system requires
little maintenance.
System check after the operation or
maintenance
• Make sure that the installation kit is properly
bound to the support structure.
• Check that all screws and clamps of the fixing
kit are carefully tightened.
• Check that all nuts, ogives and clips of the
hydraulic kit are well positioned.
• Make sure that the pressure test has been
performed and that all fittings are tight.
Regular system check
In addition to the check carried out by the
manager, solar heating systems must also be
checked at regular intervals by an authorised
technician:
• Every year, preferably before the period of
maximum solar energy use, to ensure the
system is operating correctly and to check the
condition of all components.
• The necessary maintenance intervals for the
system are defined when the appliance is
commissioned.
During maintenance the following components
should be checked:
• Solar Collectors:
- Cleaning: Using soapy water and a sponge
clean all dirt from the collector class.
- Glazing & Seals: Inspect for any cracks or
deuteriation.
- Shading: Ensure that the collector is not
covered in shade by any vegetation.
• Valves
- T&P Valve: Inspect valve mechanism, ensure
that it is free from any build-up and still
functioning. Confirm valve overflow is not
plugged.
- Pressure Control Valve: Inspect valve and
ensure that the expansion relief valve is still
functioning. Confirm valve overflow is not
plugged.
- Thermostatic Valve: Inspect valve and
ensure that the valve is still correctly
operating.
WARNING:
For storage without heating element, it is sold
without a thermal disinfection device that
carries out a “thermal disinfection cycle” to re-
strict the Legionella growth inside the tank; as
a consequence, if, for any reason, some of the
conditions for Legionella growth could occur,
it’s hardly recommended to install a device to
avoid it.
• Plumbing, insulation, and wiring connections
- Inspect for fluid leaks at pipe connections.
Check insulation connections and seals. All
wiring should be tight.
- Inspect for damage or degrading of
insulation covering pipes and wiring.
- Flashing and sealants around roof
penetration should be in good condition.
• Support Structures
- Check all nuts and bolts attaching the
collectors and tank to any support structure
for tightness.
• Storage System
- Check storage tank, etc, for any cracks, leaks,
rust, or other signs of corrosion.
- Open storage tank and manually remove
any sediment.
- Inspect condition of anode rod and replace
if necessary.
Decommissioning and disposal
The disposal of materials from the collector
must comply with current legislation. All costs
associated with disassembly, transportation and
disposal must be borne by the end user.
Direct cylinder maintenance
A drain tap must be fitted upstream of the
safety unit so that maintenance work can be
carried out on the direct cylinder.
A drainage system should also be provided
where necessary, so that the stored water can
flow out easily if the direct cylinder needs to be
emptied.
If no water is drawn off and the water is stored
for 30 days or longer, empty the system and
rinse thoroughly with water.
Check the condition of the magnesium
anode (Fig.7) every year, and replace it if
necessary.
Before checking and/or replacing the
magnesium anode, empty the direct
cylinder.