Solar Control Units 10. 1 Solar Control Module, Type Sm1, Part No. 7429 073; Specification; Delivered Condition; Tested Quality - Viessmann VITOSOL 100-F SV Technical Manual

Solar control units
10.1 Solar control module, type SM1, part no. 7429 073

Specification

Functions
■ With output statement and diagnostic system
■ Operation and display via the Vitotronic control unit
■ Heating of 2 consumers via a collector array
■ 2nd temperature differential control
■ Thermostat function for reheating or utilising excess heat
■ Solar circuit pump speed control via pulse pack control or solar circuit
pump with PWM input (make: Grundfos)
■ DHW cylinder reheating by the heat source is suppressed subject to
solar yield.
■ Suppression of reheating for central heating by the heat source in
the case of central heating backup
■ Heat-up of the solar preheating stage (with DHW cylinders from
400 l capacity)
To implement the following functions, also order immersion tempera-
10
ture sensor, part no. 7438 702:
■ For DHW circulation diversion in systems with 2 DHW cylinders
■ For return changeover between the heat source and the heating
water buffer cylinder
■ For heating additional consumers
Design
The solar control module contains:
■ PCB
■ Terminals:
– 4 sensors
– Solar circuit pump
– KM BUS
– Power supply (on-site ON/OFF switch)
■ PWM output for switching the solar circuit pump
■ 1 relay for switching one pump or one valve
Collector 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
per)
■ Never route this lead immediately next to 230 V/400 V cables
Cable length
IP rating
Sensor type
Permissible ambient temperature
– Operation
– Storage and transport
Cylinder temperature sensor
For connection inside the appliance
On-site extension of the connecting lead:

Delivered condition

■ Solar control module, type SM1
■ Cylinder temperature sensor
■ Collector temperature sensor

Tested quality

CE designation according to current EC Directives
VIESMANN
38
(cont.)
2
2.5 m
IP 32 to EN 60529; ensure
through design/installation
Viessmann NTC 20 kΩ at
25 °C
−20 to +200 °C
−20 to +70 °C
■ 2-core lead, length up to 60 m with a cross-section of 1.5 mm
per)
■ Never route this lead immediately next to 230/400 V cables
Cable length
IP rating
Sensor type
Permissible ambient temperature
– Operation
– Storage and transport
For systems with Viessmann DHW cylinders, the cylinder temperature
sensor is installed in the threaded elbow (standard delivery or acces-
sory for the respective DHW cylinder) in the heating water return.
Specification
5 8
Rated voltage
Rated frequency
Rated current
(cop-
Power consumption
Safety category
IP rating
Mode of operation
Permissible ambient temperature
– Operation
– Storage and transport
Rated relay output breaking ca-
pacity
– Semi-conductor relay 1
– Relay 2
– Total
3.75 m
IP 32 to EN 60529; ensure
through design/installation
Viessmann NTC 10 kΩ at
25 °C
0 to +90 °C
−20 to +70 °C
0
1 8
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 boiler room (standard ambient
conditions)
−20 to +65 °C
1 (1) A, 230 V~
1 (1) A, 230 V~
Max. 2 A
2 (cop-
VITOSOL