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Figure 1
Before each intervention into the inner parts of the construction of the water heater, it is
necessary to always disconnect from both sources of AC and DC current!
Accumulation water heaters with combined heating using AC and DC current may be used to heat water by
AC current only from the grid, or by DC current from photovoltaic panels or simultaneously, in various
combinations of temperatures set by means of two separate thermostats. LX water heaters are even meant
for
pre-heating
and
supplementary
heating of water. This type of use is suitable as a supplementary system
for already existing system of water heating for users using a system in which the heater is placed before or
after the system. All water heaters of the M+K(W) line are equipped with a tubular heat exchanger, which
allows them to connect to an external heat source (furnace, fireplace, natural gas heater, and the like). For
M+KW models that are made only in the 200L version, the tubular heat exchanger is located in the upper
part of the heater. That type of solution enables the top half to be heated by gas and the bottom half by
photovoltaic panels and once the temperatures are in balance, then all 200L of the water heater only by
photovoltaic panels. The
M+KW
model can also be utilised as a source of power for floor heating in low-
energy and passive homes.
