Pipe Connections - Nibe F125 Installer Manual

Pipe connections

XL 1 Connection, heating medium flow
XL 2 Connection, heating medium return
XL 3 Connection, cold water
XL 4 Connection, hot water
XL 5 Connection, HWC*
XL 6 Connection, brine in
XL 7 Connection, brine out
* Only applies to enamelled or stainless steel vessels.
HVAC components
QM 22 Venting, coil
QM 32 Shut off valve, heating medium return
QM 33 Shut off valve, brine out
QM 34 Shut-off valve, brine in
QN 10 Shuttle valve, climate system/water heater
WP 4 Pipe connection, heating medium flow
Sensors etc.
BF 1 Flow meter (only for Germany, Switzerland and
Austria)
BT 1 Outside sensor
BT 2 Temperature sensors, heating medium flow
BT 6 Temperature sensor, hot water charging
BT 7 Temperature sensor, hot water top
Electrical components
AA 4 Display unit
AA4-XJ3 USB outlet (no function)
AA4-XJ4 Service outlet (No function)
EB 1 Immersion heater
FR 1 Sacrificial anode*
SF 1 Switch
* Only heat pump with enamelled vessel.
Miscellaneous
PF 1 Rating plate
PF 2 Type plate, cooling section
PF 3 Serial number plate
UB 1 Cable gland, incoming electricity
UB 2 Cable gland
UB 3 Cable gland, rear side, sensor
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
NIBE™ F1245 Chapter 3 | The heat pump design 9