5
x
Operation and maintenance
25
Company ROTEX hot water storage tank - 10/2009
5.2
Inspection and maintenance
The Hot water storage tank is practically maintenance-free as a result of its design. No corrosion protection equipment is required
(such as sacrificial anodes). This means there is no need for maintenance work such as changing the protective anodes or cleaning
the inside of the storage tank.
Regular inspection of the Hot water storage tank guarantees a long working life and fault-free operation.
Tests performed during the annual service:
•
Perform functional control of the electric immersion heater or booster heater by checking the temperature display and the
switch statuses in the individual operating modes:
– Without connection to an HPSU heat pump: see Chapter 5.1.2.
– When connected to an HPSU heat pump: see chapter "Operation“ in the associated installation and operating instruc-
tions.
•
If a Solaris system is connected and is in operation, switch it off and empty the collectors.
•
Visual check of general condition of the Hot water storage tank.
•
Visual check of the water storage tank level (filling level indicator)
Î
If necessary, replenish water; determine the reason for the low water level and remedy it.
•
Check the connection of the safety overflow and drain hose for leaks, free drainage and gradient.
Î
If necessary, clean the safety overflow and drain hose and relay it; replace damaged parts.
•
Visual check of connections and pipes. In the event of damage, determine the cause.
Î
Replace defective parts.
•
Check all electrical components, connections and cables.
Î
Repair damaged parts or replace them.
•
Check the water pressure of the cold water supply (<6 bar)
Î
If necessary, fit or adjust pressure reducer.
Clean the storage tank (annually)
•
The low-maintenance plastic may only be
cleaned
with a soft cloth and a mild detergent
. Do not use cleaning agents
containing aggressive solvents, as this will damage the plastic surface.
WARNING!
Live parts can cause an electric shock on contact and cause life-threatening burns and injuries.
•
If there is an electric immersion heater or regulation and pump station installed in the Hot water storage
tank, then these components must be isolated from the power supply before starting the inspection and
maintenance work (e.g. fuse, main switch switched off and secured against inadvertent switching on
again).
WARNING!
All work performed on live components must be carried out in accordance with the proper procedures,
otherwise there may be a danger to the life and health of individuals and the function may be impaired.
•
Rectification of damage to live components may only be carried out by heating engineers authorised and
recognised by the energy supply company.
