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FOR THE INSTALLER
LWM model: individual temperature control in each room, increasing
volume of internal water and bypass
This solution is viable if you want to control the temperature of each room, for example if you use thermostat valves on
the radiators in each room. The function of the heat pump is to maintain a temperature in accordance with the heat curve
(depending on outdoor temperature) in the accumulator. The heating water is then distributed from the accumulator to the
heating system. This solution also allows the overall volume of the installation to be increased if the volume of the heating
system is inadequate, for example with one or two fan-assisted radiators.
* Mixed heating system
There is a possibility to control a second
heating system with a mixing valve. This
is recommended when a combination of
radiators and a fl oor heating system is used.
Symbols according to ISO/FDIS 14617.
Letter codes according to IEC 61346-2.
This is a principal drawing.
Connecting the heat pump to the heating system
*
C11: Expansion tank
C21: storage tank
E22 : water heater with electric cassette
E42: tank with outer shell
F21: safety valve
F22: safety valve
G1 (P1): Radiator pump
G2 (P2): Heat carrier pump
G4 (P4): Pump for mixed heating system
Q41: mixer valve
V21: Filter Heating system
V40: Hot water
W40: Cold water »
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