5
Subject to change without notice | 83059200dUK – Translation of the original operating manual | ait-deutschland GmbH
●
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 service life of the
heat generator and the heating components depend
decisively on the quality of the heating water.
When the system is filled with untreated drinking water,
calcium precipitates as scale. Lime scale deposits
form on the heat transfer surfaces of the heating. The
efficiency drops and energy costs rise. In extreme
cases, the heat exchangers will be damaged.
Fill the system exclusively with deionised heating
water (VE water) or VDI 2035 water.
3 Operation and maintenance
NOTE
The unit is operated via the control panel
of the heating and heat pump controller
(
operating manual of the heating and heat
pump controller).
3.1 Energy and environmentally-
conscious operation
The generally accepted requirements for energy-
conscious and environmentally-conscious operation
of a heating system also apply to use of a heat pump.
The most important measures include:
● No unnecessarily high flow temperature
●
No unnecessarily high domestic hot water
temperature (note and follow local regulations)
●
Do not open windows with just a gap or tilt open
(continuous ventilation); instead, open wide for a
short time (shock ventilation)
●
Always ensure that the controller settings are
correct
3.2 Maintenance
Wipe down the outside of the unit only using a damp
cloth or cloth with mild cleaning product (washing-up
liquid, neutral cleaning agent). Never use any harsh,
abrasive, acid or chlorine-based cleaning products
