Nibe F1255 Installer Manual page 11

Pipe connections
XL1 Connection, heating medium flow
XL2 Connection, heating medium return
XL3 Connection, cold water
XL4 Connection, hot water
XL5 Connection, HWC*
XL6 Connection, brine in
XL7 Connection, brine out
* Only heat pumps with enamelled or stainless steel vessel.
HVAC components
QM22 Venting, coil
QM31 Shut-off valve, heating medium flow
QM32 Shut off valve, heating medium return
QM33 Shut off valve, brine out
QM34 Shut-off valve, brine in
QN10 Shuttle valve, climate system/water heater
Sensors etc.
BF1 Flow meter**
BT1 Outdoor temperature sensor*
BT2 Temperature sensors, heating medium flow
BT6 Temperature sensor, hot water charging
BT7 Temperature sensor, hot water top
**Only heat pumps with energy meter
* Not illustrated
Electrical components
AA4 Display unit
AA4-XJ3 USB socket
AA4-XJ4 Service outlet (No function)
EB1 Immersion heater
FR1 Sacrificial anode*
RA3 Choke**
SF1 Switch
W130 Network cable for NIBE Uplink
* Only heat pump with enamelled vessel.
** Only for F1255-12 kW 3X400V.
Miscellaneous
PF1 Rating plate
PF2 Type plate, cooling section
UB1 Cable gland, incoming electricity
UB2 Cable gland
UB3 Cable gland, rear side, sensor
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
NIBE™ F1255
TM
Chapter 3 | The heat pump design 11