General
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Pipe connections
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, brine inXL 6
Connection, brine outXL 7
Connection, hot water heaterXL 9
HVAC components
T&P valveFL 5
Shut off valve, heating medium returnQM 32
Shut off valve, brine outQM 33
Shut-off valve, brine inQM 34
Shuttle valve, climate system/water heaterQN 10
Pipe connection, heating medium flowWP 4
Sensors etc.
Outside sensorBT 1
Temperature sensors, heating medium flowBT 2
Electrical components
Display unitAA 4
AA4-XJ3 USB outlet (no function)
AA4-XJ4 Service outlet (No function)
Immersion heaterEB 1
SwitchSF 1
Miscellaneous
Rating platePF 1
Type plate, cooling sectionPF 2
Serial number platePF 3
Cable gland, incoming electricityUB 1
Cable glandUB 2
Cable gland, rear side, sensorUB 3
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
7Chapter 3 | The heat pump designNIBE™ F1145
3 The heat pump design
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