System description
3
VVM 240
Principle of operation
System diagram
VVM 240 is an electric boiler intended for houses with
water based heating. It consists of a double-jacketed
pressure vessel, two immersion heaters and an
advanced control system.
The water heater is equipped with a copper corrosion
inhibitor. The immersion heaters are located in the dou-
ble-jacket.
The immersion heaters have a max output of 13.5 kW
with the possibility of setting lower outputs. The factory
setting is 9.0 kW.
The total water volume is 240 litres of which 70 litres is
in the double-jacketed space and 170 litres in the water
heater.
VVM 240 is equipped with a climate controlled, automat-
ic bypass system so that the right temperature is
obtained for the heating system. This temperature is
determined by the outdoor temperature and the selected
default settings.
VVM 240 is designed for the direct connection and
communication with FIGHTER 2010. Sizes 6 and 8 can
be connected. FIGHTER 2010 and VVM 240 together
make up a complete heating plant.
FIGHTER 2010 covers the entire heating and hot water
requirement until the house’s requirement exceeds the
heat pump’s stated output. In the temperature zone
between the balance temperature and the stop tempera-
ture, FIGHTER 2010 works together with VVM 240.
Should the outdoor temperature fall to a level below the
stop temperature of FIGHTER 2010, all heating is pro-
vided by VVM 240.
The heating medium side and the domestic hot water
side must be fitted with the necessary safety equip-
ment in accordance with the applicable regulations.
NOTE! This is an outline diagram Actual installations
must be planned according to applicable standards.
95
FIGHTER 2010
VVM 240
AV
AV
SÄK
SF
RC
TV
FG
RG
UG
