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10.5
Water draining of the tank
Before draining the water of the tank, its DHW circuit must be despressurized.
Remove tank's upper cap and put in a hose to empty it.
Direct the opposite end of the hose to a drainage, assuring that it is located in a level below the
bottom of the tank. Inhale gently until the water starts flowing. Wait until the tank is completely
empty.
10.6
Maintenance work
The table below shows a list of recommended maintenance work.
Maintenance frequency
Hot water tank
Check the connections are correctly sealed
1
Yearly
Check the proper operation of the safety valves
Yearly
Collector
Check the state of the collectors: dirt, dents, connections,
supports and levelling of the collectors
2
Yearly
Regulation
Check the sensors are working correctly
3
Yearly
Check the power unit adjustment parameters
4
Yearly
Check the pump is working correctly in automatic and
manual mode (on/off)
5
Yearly
Check the mixing valve is working correctly, if the unit has
one
6
Yearly
Solar circuit
Check the solar liquid filling level
7
Yearly
Renew the solar liquid with a concentration of at least 30% of
the inhibitor liquid
At least once every 3 years.
Check the collectors are self-draining
8
Yearly
Pipes
Check the state of the insulation
9
Yearly
Check the installation is correctly sealed
10
Yearly
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