5
Subject to change without notice | 83056800fUK – Translation of the original operating manual | ait-deutschland GmbH
Injury due to flammable liquids and potentially
explosive atmospheres
Constituents of antifreeze mixtures, e.g. ethanol,
methanol, are highly flammable and form an explosive
atmosphere:
►
mix antifreeze in well-ventilated rooms.
► Note the hazardous substance markings and
comply with the relevant safety regulations.
Injuries and environmental damage due to
refrigerant
The unit contains harmful and environmentally
dangerous refrigerant. If refrigerant leaks from the unit:
1.
Switch off unit.
2. Thoroughly ventilate installation room.
3. Notify authorised customer service.
2.5 Disposal
Batteries
Improper disposal of the buffer battery damages the
environment.
► Dispose of the buffer battery in an environmentally
compatible way according to the local regulations.
Media harmful to the environment
Improper disposal of environmentally harmful media
(antifreeze, refrigerant) damages the environment:
►
Collect media safely.
►
Dispose of the media in an environmentally com-
patible way according to the local regulations.
2.6 Avoid damage to property
Improper action
Requirements for minimum scale and corrosion
damage in hot water heating systems:
●
Proper planning, design and start-up
●
Closed system with regard to corrosion
●
Integration of adequately dimensioned pressure
retention
●
Use of deionised heating water (VE water) or
water corresponding to the VDI 2035 norm
●
Regular servicing and maintenance
If a system is not planned, designed, started up and
operated according to the given requirements, there is
a risk that the following damage and faults will occur:
●
Malfunctions and the failure of components, e.g.
pumps, valves
● Internal and external leaks, e.g. from heat
exchangers
● Cross-section reduction and blockages in
components, e.g. heat exchanger, pipes, pumps
●
Material fatigue
●
Gas bubbles and gas cushion formation
(cavitation)
● Negative effect on heat transfer, e.g. formation of
coatings, deposits, and associated noises, e.g.
boiling noises, flow noises
►
Note and follow the information in this operating
manual for all work on and with the unit.
Unsuitable quality of the fill and make-up
water in the heating circuit
The efficiency of the system and the life of the heat
generator and the heating components depend
decisively on the quality of the heating water.
If the system is filled with untreated domestic water,
calcium precipitates as scale. Limescale deposits
form on the heat transfer surfaces of the heating. The
efficiency drops and energy costs rise. In extreme
cases the heat exchangers are damaged.
►
Fill the system with deionised heating water
(VE water) or with water corresponding to the VDI
2035 norm only (low-salt operation of the system).
Unsuitable quality of the water or the water-
antifreeze mixture in the heat source
► Use of pure water in the heat source with a flat-
plate collector or a borehole heat exchanger is not
permitted.
►
For operation of the heat source with water or
water-antifreeze mixture, ensure that the water
used fulfils the quality specifications of the heating
water side.
“7 Flushing, filling and venting“, from page 17
Using groundwater
►
If using groundwater install an intermediate
exchanger.
