Nibe FIGHTER 1250 - Page 25

23
NIBE FIGHTER 1250
B
FIGHTER with two heating systems (fl oating con-
densing)
The shunt valve lowers the temperature to the under fl oor
heating system.
Accessory ESV 21 is required for this connection:
FIGHTER with pool (fl oating condensing)
Charging of the pool is controlled by the pool sensor. In
the case of low pool temperatures the shuttle valve revers-
es direction and opens towards the pool exchanger.
The heating medium fl ow is adjusted in menu 8.4.5 so that
the temperature difference over the pool heat exchanger is
10 - 15 °C.
Accessory POOL 11 is required for this connection.
FIGHTER with ground water system
In which case an intermediate heat exchanger (MX) is used
to protect the heat pump’s exchanger from dirt. The water
is released into a buried fi ltration unit or a drilled well.
T
Pipe connections
SV
MX
AV Shut-off valve
BV Non-return valve
CP Circulation pump
EXP Expansion vessel
FG Flow sensor
MX Intermediate heat
exchanger
PTG Pool sensor
RV Control valve
SF Particle fi lter
SV Shunt valve
SÄV Safety valve
VX Pool exchanger
VXV Shuttle valve
Pool
T
PTG
VXV
VX