The Heat Pump Design - Nibe F1126 Service Manual

2 The heat pump design

The heat pump design
General
XL1
XL6
PF1
QN10
BT2
EB1
UB1
QM34
QM31
NIBE F1126
XL9 XL2
XL7
UB3
AA4
W130
F1145
SF1
AA4-XJ4
AA4-XJ3
QM32
QM33
UB2
PF2
Pipe connections
XL1 Connection, heating medium flow
XL2 Connection, heating medium return
XL6 Connection, brine in
XL7 Connection, brine out
XL9 Connection, hot water heater
HVAC components
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.
BT1 Outdoor temperature sensor*
BT2 Temperature sensors, heating medium flow
* Not illustrated
Electrical components
AA4 Display unit
AA4-XJ3 USB socket
AA4-XJ4 Service outlet (No function)
EB1 Immersion heater
SF1 Switch
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.
Chapter 2 | The heat pump design 5