Equipment Required - Viessmann BWT 241.A Series Installation And Service Instructions Manual

Preparing for installation
System example, ID: 4605091_1102_03

Equipment required

Pos. Designation
Heat source
1 Compact heat pump:
2 ■ Integral heat pump control unit
■ Primary pump
■ Secondary pump
■ 3-way diverter valve for "Heating/DHW"
■ Cylinder primary pump
■ DHW cylinder
■ Cylinder temperature sensor
3 Outside temperature sensor ATS
4 Instantaneous heating water heater
8 KM BUS distributor
qW Safety assembly
qE
Heating circuit expansion vessel
Primary circuit
wP Brine accessory pack
wQ Pressure switch, primary circuit
wW Brine distributor for geothermal probes/geothermal collectors
wU
Geothermal probe/geothermal collector
DHW heating
eU Connection set with DHW circulation pump ZP
DHW heating with a solar thermal system
rQ High limit safety cut-out STB
rW Solar-Divicon
rE Solar circuit pump
rR Collector temperature sensor KOL
rT Solar collector
rZ Junction box
rO
Expansion vessel, solar circuit
Heating water buffer cylinder
zP Heating water buffer cylinder
zQ Buffer temperature sensor PTS
zW System flow temperature sensor VTS
■ As immersion sensor
or
■ As contact sensor
12
(cont.)