Temperature Sensor (Dhw Cylinder/Heating Water Buffer Cylinder/Combi Cylinder); Lon Communication Module; Lon Connecting Cable For Data Exchange Between Control Units - Viessmann VITODENS 200-W Technical Manual

Control units
(cont.)
Functions
■ Switching the solar circuit pump
■ Electronic limiter for the temperature in the DHW cylinder (safety
shutdown at 90 °C)
■ Collector safety shutdown
■ Central heating backup is controlled in conjunction with a multi-mode
heating water buffer cylinder
■ The heating of two consumers is controlled via a collector array
■ Switching an additional pump or valve via relay
■ Second temperature differential control or thermostat function
■ Solar circuit pump speed control via wave pack control or solar circuit
pump with PWM input (Grundfos)
■ Suppression of DHW cylinder reheating by the boiler (auxiliary func-
tion for DHW heating is possible)
■ Suppression of reheating for central heating by the boiler with central
heating backup
■ Heating up of the solar-heated preheat stage (for DHW cylinders with
a total capacity of ≥ 400 l)
■ Load balancing and diagnostic system
Specification
0
1 8
5 8
5

Temperature sensor (DHW cylinder/heating water buffer cylinder/combi cylinder)

Part no. 7438 702
■ For DHW circulation diversion for systems with 2 DHW cylinders
or
■ for return changeover between the boiler and the heating water buf-
fer cylinder
or
■ for heating additional consumers
On-site extension of the connecting lead:
■ 2-core lead, length max. 60 m with a cross-section of 1.5 mm
per)
■ Never route this lead immediately next to 230/400 V cables

LON communication module

PCB for data exchange with the Vitotronic 200-H, Vitocom 200 and for
connecting to higher level building management systems.

LON connecting cable for data exchange between control units

Vitotronic 300-K for the Vitotronic 200-H
VIESMANN
54
Rated voltage
Rated frequency
Rated current
Power consumption
Protection class
IP rating
Function
Permiss. ambient temperature
– during operation
– during storage and transport
Rated capacity of the relay outputs
– Semi-conductor relay 1
– Relay 2
– Total
Specification
Lead length
IP rating
Sensor type
Permissible ambient temperature
– during operation
– during storage and transport
2
(cop-
■ For installation into the Vitotronic 200
Part no. 7179 113
■ For installation into the Vitotronic 300-K
Part no. 7172 174
230 V~
50 Hz
2 A
1.5 W
I
IP 20 to EN 60529; ensure
through design/installation
Type 1B to EN 60730-1
0 to +40 °C use in the living
space or in boiler rooms
(standard ambient conditions)
−20 to +65 °C
1 (1) A, 230 V~
1 (1) A, 230 V~
max. 2 A
3.75 m
IP 32 to EN 60529; ensure
through design/installation
NTC 10 kΩ at 25 °C
0 to +90 °C
−20 to +70 °C
VITODENS 200-W