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Mixer Control; Mixer Motor; Immersion Thermostat; Contact Thermostat - Viessmann VITODENS 300 Datasheet

Gas fired condensing boiler 4.5 to 66.0kw as multi−boiler system up to 264kw
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Vitotronic 200 and Vitotronic 333 accessories
Vitotronic 200 extension kit for one
heating circuit with mixer
(KM BUS user),
part no. 7178 995

Mixer control

The mixer regulator is mounted directly
on Viessmann mixer DN 20 to 50 and
R ½" to 1¼".
The mixer regulator is a motorised
control unit. Rotational direction may be
reversed.
With connection plug for heating circuit
pump, flow temperature sensor (contact
sensor), mains and BUS connection.
Rated voltage:
230 V~
Rated frequency:
50 Hz
Rated current:
4 (2) A
Power consumption:
6.5 W
Safety class:
Test class:
II
Protection:
IP 32 D to
EN 60529
Permissible ambient
temperature
H in operation:
20 to +40 ºC
H in storage
20 to +65 ºC
and transport:
Relay output braking
capacity for heating
circuit pump sÖ:
4 (2) A 230 V~
Motor:
Torque:
3 Nm
Run time for 90ºí:
2 minutes
Dead zone of the PI
controller at a slope of 1.4: ±1.2 K
Flow temperature sensor (contact sensor)
Secured with a tie. Cable length
approx. 2 m, wired ready to plug in
Protection:
IP 32
Permissible ambient
temperature
H in operation:
20 to +100 ºC
H in storage
20 to + 70 ºC
and transport:
VITODENS 300
Vitotronic 200 and Vitotronic 333 accessories
Vitotronic 333 extension kit for one
heating circuit with mixer,
part no. 7450 650
comprising a mixer motor with
connecting cable (4 m lang), plug−in
connector and flow temperature sensor
(contact temperature sensor).

Mixer motor

The mixer motor is mounted directly on
Viessmann mixer DN 20 to 50 and R ½" to
1¼".
Rated voltage:
230 V~
Rated frequency:
50 Hz
Power consumption:
4 W
Protection:
IP 42 to
EN 60 529.
Safeguard
through design/
installation.
Permissible ambient
temperature
H in operation:
20 to +40 ºC
H during storage
20 to +65 ºC
and transport:
Torque:
3 Nm
Run time for 90ºí:
2 minutes
Contact temperature sensor
For recording the flow temperature.
Secured with a tie.
Cable length 5.8 m, ready to plug in.
Protection:
IP 32 to
EN 60 529.
Safeguard
through design/
installation.
Permissible ambient
temperature
H in operation:
20 to +130 ºC
H during storage
20 to + 70 ºC
and transport:
Mixer motor for flanged mixer see control
unit accessories, register 18.

Immersion thermostat

As temperature limiter for limiting the
max. temperature of underfloor heating
systems,
part no. 7151 728
R
"
The temperature limiter is installed into
heating flow and switches heating circuit
pump OFF if flow temperature is too high.
With connecting cable (approx. 4 m long)
and system plug.
30 to 80 ºC
Setting range:
Switching differential:
max. 11 K
Breaking capacity:
6 (1.5) A 250 V~
Setting scale:
inside casing
Stainless steel sensor well: R ½" × 200 mm
DIN reg. no:
DIN TR 777 03
or
DIN TR 968 03
or
DIN TR 1103 02
or

Contact thermostat

As temperature limiter for limiting the
max. temp. of underfloor heating systems,
part no. 7151 729
(only in conjunction with metallic pipes)
The temperature limiter is installed into
heating flow and switches heating circuit
pump OFF if flow temperature is too high.
With connecting cable (approx. 4 m long)
and system plug.
30 to 80 ºC
Setting range:
Switching differential:
max. 14 K
Breaking capacity:
6 (1.5) A 250 V~
Setting scale:
inside casing
DIN reg. no:
DIN TR 777 03
or
DIN TR 968 03
or
DIN TR 1103 02
31
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