72
130
95
Specification
Lead length
4.2 m, fully wired
Setting range
30 to 80 °C
Switching differential
max. 14 K
Breaking capacity
6(1.5) A 250V~
Setting scale
inside the casing
DIN reg. no.
DIN TR 116807
or
DIN TR 96808
Solar control module, type SM1 (only with Vitoladens 300-W)
Part no. 7429 073
Specification
Construction
The solar control module contains:
■ PCB
■ Connection terminals for:
– 4 sensors
– Solar circuit pump
– KM BUS
– Power supply (on-site ON/OFF switch)
■ PWM output for controlling the solar circuit pump
■ 1 relay for switching a pump or valve
Collector temperature sensor
For connection inside the appliance.
On-site extension of the connecting lead:
■ 2-core lead, length max. 60 m with a cross-section of 1.5 mm
2
(cop-
per)
■ Never route this lead immediately next to 230/400 V cables
Lead length
2.5 m
IP rating
IP 32 to EN 60529; ensure
through design/installation
Sensor type
NTC 20 kΩ at 25 °C
Permissible ambient temperature
– during operation
−
20 to +200 °C
– during storage and transport
−
20 to +70 °C
Cylinder temperature sensor
For connection inside the appliance.
On-site extension of the connecting lead:
■ 2-core lead, length up to 60 m with a cross-section of 1.5 mm
2
(cop-
per)
■ Never route this lead immediately next to 230/400 V cables
Lead length
3.75 m
IP rating
IP 32 to EN 60529; ensure
through design/installation
Sensor type
NTC 10 kΩ at 25 °C
Permissible ambient temperature
– during operation
0 to +90 °C
– during storage and transport
−
20 to +70 °C
For systems with Viessmann DHW cylinders, the cylinder temperature
sensor is installed in the threaded elbow (see chapter "Specification"
of the relevant DHW cylinder and chapter "Installation accessories")
in the heating water return.
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
58
180
140
Rated voltage
230 V~
Rated frequency
50 Hz
Rated current
2 A
Power consumption
1.5 W
Protection class
I
IP rating
IP 20 to EN 60529; ensure
through design/installation
Function
Type 1B to EN 60730-1
Permiss. ambient temperature
– during operation
0 to +40 °C use in the living
space or in boiler rooms
(standard ambient conditions)
– during storage and transport
−
20 to +65 °C
Rated capacity of the relay outputs
Control unit
(cont.)
VITOLADENS 300-W
/
VITOLADENS 333-F
VIESMANN
65
5822 425 GB
6
