Alpha-InnoTec WZSV 42K3M, Operating Manual

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6
Subject to technical amendments without prior notice | 83072100aUK | ait-deutschland GmbH
● 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 VDI
2035 only (low-salt operation of the system).
Unsuitable quality of the water in the domes-
tic hot water tank
► Ensure that the electrical conductivity of the
domestic water is at least 100 μS/cm and that the
drinking water is of drinking water quality.
Unsuitable quality of the water or the water-
antifreeze mixture in the heat source
► Use of pure water in a flat-plate collector or a bore -
hole heat exchanger (vertical collector) is not per -
mitted
► For operation of the heat source with water or a
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 ex-
changer.
3 Description
3.1 Layout
NOTE
This section essentially names the
components relevant for fulfilling the tasks
described in this operating manual.
Housing with unit components
12
10
6
1
11
3
4
5
7
8
2
9
1 Domestic hot water tank
2 Heating circuit/hot water circulation pump
3 Heating element
4 3-way switching valve, heating circuit/
domestic hot water