0020288151_04 Operating and installation instructions 37
4.9.2 Meaning of the abbreviations
Abbreviation Meaning
1 Heat generator
1a Domestic hot water back-up boiler
1b Heating back-up boiler
1c Domestic hot water/heating back-up boiler
2a Air-to-water heat pump
2c Refrigerant-split heat pump outdoor unit
2d Refrigerant-split heat pump indoor unit
3 Heat generator circulation pump
3a Swimming pool circulation pump
3c Cylinder charging pump
3e Circulation pump
3f[x] Heating pump
3h Anti-legionella pump
3i Pump heat exchanger
3j Solar pump
4 Buffer cylinder
5 Monovalent domestic hot water cylinder
5a Bivalent domestic hot water cylinder
5e Hydraulic tower
6 Solar collector (thermal)
7a Heat pump brine filling unit
7b Solar pump station
7d Heat interface unit
7f Decoupler module
7g Heat recovery module
7h Heat exchanger module
7i 2-zone module
7j Pump group
8a Expansion relief valve
8b Potable water expansion relief valve
8c Safety assembly – potable water connection
8d Safety assembly for the heat generator
8e Heating diaphragm expansion vessel
8f Diaphragm expansion vessel – potable water
8g Solar/brine diaphragm expansion vessel
8h Solar protection vessel
8i Thermal safety assembly
9a Single-room temperature control valve
(thermostatic/motorised)
9b Zone valve
9c Flow regulator valve
9d Bypass valve
9e Diverter valve for potable water
9f Diverter valve, cooling
9g Diverter valve
9gSolar Solar diverter valve
9h Filling/draining cock
9i Purging valve
9j Tamper-proof capped valve
Abbreviation Meaning
9k[x] 3-port mixing valve
9l Cooling 3-port mixing valve
9n Thermostatic mixing valve
9o Flow meter (TacoSetter)
9p Cascade valve
10a Thermometer
10b Manometer
10c Non-return valve
10d Air separator
10e Line strainer with magnetite separator
10f Solar/brine collecting vessel
10g Heat exchanger
10h Low loss header
10i Flexible connections
11a Fan coil
11b Swimming pool
12 System control
12a Remote control
12b Heat pump control module
12c 2 in 7 multi-functional module
12d FM3 functional module
12e FM5 functional module
12f Wiring centre
12g eBUS bus coupler
12h Solar control
12i External control
12j Cut-off relay
12k Limit thermostat
12l Cylinder temperature cut-out
12m Outdoor temperature sensor
12n Flow switch
12o eBUS power supply unit
12p Radio receiver unit
12q Internet module
12r PV control
C1/C2 Enable cylinder charging/buffer cylinder
charging
COL Collector temperature sensor
DEM[x] External heat demand for the heating circuit
DHW Cylinder temperature sensor
DHWBt Bottom cylinder temperature sensor
(domestic hot water cylinder)
DHWBt2 Cylinder temperature sensor (second solar
cylinder)
EVU Energy supply company switching contact
FS[x] Flow temperature sensor for heating cir-
cuit/swimming pool sensor
MA Multi-function output
ME Multi-function input
PV Photovoltaic inverter interface
PWM PWM signal for pump
RT Room thermostat
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