Vaillant sensoCOMFORT VRC 720f Operating And Installation Instructions page 89

-- Using the functional modules, basic system diagram, start-up 4
4.9.2 Meaning of the abbreviations
Abbreviation Meaning
1 Heat generator
1a Back-up boiler for domestic hot water
1b Back-up boiler for heating
1c Domestic hot water/heating back-up boiler
1d Solid fuel boiler with manual feed
2 Heat pump
2a Air-to-water heat pump
2b Air-to-brine heat exchanger
2c Refrigerant-split heat pump outdoor unit
2d Refrigerant-split heat pump indoor unit
2e Ground water module
2f Passive cooling module
3 Heat generator circulation pump
3a Swimming pool circulation pump
3b Cooling circuit pump
3c Cylinder charging pump
3d Well pump
3e Circulation pump
3f[x] Heating pump
3g Heat source circulation 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
5b Shift-load cylinder
5c Combi cylinder
5d Multi-functional buffer cylinder
5e Hydraulic tower
6 Solar collector (thermal)
7a Heat pump brine filling unit
7b Solar pump station
7c Domestic hot water station
7d Heat interface unit
7e Hydraulic block
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
Safety assembly – potable water connection
8c
8d Safety assembly for the heat generator
8e Heating diaphragm expansion vessel
Diaphragm expansion vessel – potable water
8f
8g Solar/brine diaphragm expansion vessel
0020288151_00 sensoCOMFORT Operating and installation instructions
Abbreviation Meaning
8h Solar protection vessel
8i Thermal safety assembly
9a Single-room temperature control valve (ther-
mostatic/motorised)
9b Zone valve
9c Flow regulator valve
9d Bypass valve
9f Diverter valve, cooling
9e Diverter valve for potable water
9g Diverter valve
9gSolar Solar diverter valve
9h Filling/draining cock
9i Purging valve
9j Tamper-proof capped valve
9k[x] 3-port mixing valve
9l Cooling 3-port mixing valve
9m Increase in return for 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 gateway
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