Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 15

Preparing for installation
Equipment required
Pos. Designation
1 Vitotwin 300 W
with
2 Weather-compensated control unit
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 Sensor for power demand function B41
8 Buffer temperature sensor PTSU B42, bottom
9 Sub-mounting kit with 3/2-way valve
DHW heating
wP Vitocell mono 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
tW Flow temperature sensor, heating circuit M2
tE Heating circuit pump, heating circuit M2
tR 3-way mixer
or
Divicon (with 3-way mixer and heating circuit pump)
zP Heating circuit 3 with mixer (and plate heat exchanger for system sep-
aration)
zQ Extension kit for one heating circuit with mixer with integral mixer motor
and
zW Flow temperature sensor, heating circuit M3
zE Heating circuit pump, heating circuit M3
(cont.)
Preparing for installation
15