Application Example 2; System With One Heating Circuit With Mixing Valve - Viessmann Vitotronic 300 KW3 Installation Instructions Manual

Application Example 2

System with one heating circuit with mixing valve

Boiler with Vitotronic 300
Domestic hot water tank
KM-BUS Expansion Module
(accessory) for the connection of
several KM-BUS participants
Heating circuit with mixing valve
Power Pump Module
Low water cut-off device
Mixing valve actuator accessory kit
Required Equipment
Description
Vitotronic 300
Mixing valve actuator accessory kit (with mixing valve motor and supply temperature
sensor) for Viessmann mixing valve
Available System Accessories
Vitotrol remote control
Room temperature sensor
Return water temperature sensor
Switching Module-V for expanding
the range of control functions
*1
Supply check valve, only required if piping connection is made on one common boiler return.
*2
To be connected in accessory kit.
*3
In connection with underfloor heating when control measures supply and return water temperature.
*4
Included in standard equipment.
Connectors
Outdoor temperature sensor
Supply temperature sensor
*2
(accessory)
Boiler temperature sensor
DHW tank temperature sensor
Return water temperature sensor
*2,3
(accessory)
KM-BUS participant
Extension for
two-stage/modulating burner
KM-BUS Expansion Module
Flue gas temperature sensor
M1 Heating circuit pump
Mixing valve circuit
DHW production pump
(accessory)
DHW recirculation pump
(installed on site)
Power supply
(120 VAC, 60 Hz)
Burner, single-stage
*4
Burner, two-stage/
modulating
Qty Part No.
1 Z001 231
7133 392 (old version)
1 or
7837 524 (new version)
*2
*4
*4
5