User Manual

ManualsBrandsSiemens ManualsHome Automation SystemsSynco living Radiator Control Actuator SSA955

CE1N2700en

2020-05-11

Smart Infrastructure

700

Synco™ living

Radiator Control Actuator

SSA955

· RF-controlled actuator for radiator valves

· RF communication based on KNX standard (868 MHz, bidirectional)

· Battery-powered by commercially available 1.5 V batteries

(reversed polarity protection)

· Low power consumption

· Silent mode (e.g. for use in sleeping rooms)

· Nominal stroke 2.5 mm

· Valve positioning force 110 N

· Automatic identification of valve stroke

· Parallel connection of multiple actuators possible

· Integrated temperature sensor

· For direct mounting with coupling nut (no tools required)

· Manual adjustment

Summary of content (10 pages)

PAGE 1
2 700 Synco™ living Radiator Control Actuator SSA955 · RF-controlled actuator for radiator valves · RF communication based on KNX standard (868 MHz, bidirectional) · Battery-powered by commercially available 1.5 V batteries (reversed polarity protection) · Low power consumption · Silent mode (e.g. for use in sleeping rooms) · Nominal stroke 2.
PAGE 2
Use · For integration into the Siemens Synco living system · Suited for use in heating plant for operating radiator valves from Siemens or radiator valves of other manufacture · Several radiator control actuators can be used in one room Compatibility Siemens valves The SSA955 is suited for use with the following types of radiator valves from Siemens: Type reference Valve type VDN.., VEN.., VUN.. Radiator valves kvs PN class Data Sheet [m3/h] no. 0.25…1.41 PN10 2105, 2106 VD…, CLC… Radiator valves 1.
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Accessories Adapters AV… for valves of other manufacture For fitting the SSA955 to radiator valves of other manufacture, the following types of adapters are available: Type reference For radiator valves from: Type reference For radiator valves from: AV51 Beulco distributor M30x1.0 AV57 Herz AV521) Comap AV58 Oventrop M30x1.
PAGE 4
The SSA955 controls the room temperature based on the data delivered by the central apartment unit. Parallel operation When using several SSA955 in one room, the first SSA955 integrated in the room operates as the lead controller. The other SSA955 are controlled by the lead controller via the central apartment unit. The multifunction button can be used to query the lead controller. The multifunction LED indicates when the SSA955 operates as lead controller.
PAGE 5
Error and maintenance messages All error and maintenance messages are forwarded to the central apartment unit where they appear on the display. The following messages are delivered by the SSA955: Error messages Maintenance message Communication error (no communication for one hour) Batteries discharged (battery life £ 3 months) Calibration error (undefined valve travel) Sensor error (failure of integrated room temp.
PAGE 6
Notes on engineering and operation Mounting location · The mounting location should be chosen such that the integrated temperature sensor can acquire the room temperature as accurately as possible. The SSA955 should not be installed in niches or bookshelves and not behind doors or curtains.
PAGE 7
WARNING Electrolyte leakage Chemical burns ● ● Only grasp damaged batteries using suitable protective gloves. If electrolyte comes into contact with eyes, immediately rinse eyes with plenty of water. Consult a doctor. Observe the following: ● Only replace batteries with batteries of the same type and from the same manufacturer. ● Observe the polarities (+/-). ● The batteries must be new and free from damage. ● Do not mixed new batteries with used batteries.
PAGE 8
Technical data Power supply Type of battery Battery life (capacity ≥ 2.5 Ah) 3 x alkaline batteries LR6 (AA) 1.5 V in normal operation: 3 years in silent mode: 2 years RF Frequency Range Protocol 868 MHz (bidirectional) typically 30 m in buildings KNX RF-compatible Noise level Sound power level (LwA) Actuator Nominal stroke Minimum valve stroke Positioning force <30 dBA in normal operation <25 dBA in silent mode EN ISO 3741 2.5 mm 0.
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Operation Transport Storage IEC 60721-3-3 IEC 60721-3-2 IEC 60721-3-1 class 3K5 class 2K3 class 1K3 0…+50 °C -25…+70 °C -20…+65 °C 5…95 % r.h. <95 % r.h. 5…95 % r.h. <95 % r.h. 5…95 % r.h. (noncondensing) class 3M2 class 2M2 class 1M2 min. 700 hPa, corresponding to max.
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Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2017 Technical specifications and availability subject to change without notice.