Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 20

Preparing for installation
Preparing for installation
Equipment required
Pos. Designation
1 Vitotwin 300 W
with
2 Weather-compensated control unit
2A
230 V∼ extension
2B Junction box for sensors and accessories (low voltage)
3A Remote control unit FBE
3B Wireless base station FB
4
Outside temperature sensor ATS
5 Cylinder temperature sensor STS B3
6 Buffer temperature sensor PTSO B4, top
7 Buffer temperature sensor PTSU B41, bottom
8 Flow temperature sensor, common flow (common flow sensor B10)
9 Sub-mounting kit with 3/2-way valve
Heat source 2
qP Floorstanding oil/gas boiler
qQ Vitotronic 200, type KO1B and KO2B
qW Outside temperature sensor ATS
qE Cylinder temperature sensor STS
qR Boiler water temperature sensor KTS
qT
Cylinder primary pump UPSB
qZ 3-way diverter valve
qU External extension EA1
qI Contactor relay
DHW heating
wP Vitocell dual mode DHW cylinder
wQ
DHW circulation pump CP (electrical connection on site)
Heating water buffer
eP Heating water buffer cylinder Vitocell 100-E
rP Heating circuit 1 with mixer
rQ
Extension kit for one heating circuit with mixer with integral mixer motor
and
rW Flow temperature sensor heating circuit M1
rE Heating circuit pump, heating circuit M1
rR 3-way mixer
or
Divicon (with 3-way mixer and heating circuit pump)
tP Heating circuit 2 with mixer
tQ Extension kit for one heating circuit with mixer with integral mixer motor
and
20
(cont.)