Power amplifier for thermic valve actuators

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Chloe Lynch
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actuators to controllers with an AC V output signal parallel AC V outputs, VA per

1 9 Power amplifier for thermic valve actuators For controllers with an AC V output signal The power amplifier is used to allow the connection of additional valve actuators to controllers with an AC V output signal parallel AC V outputs, VA per output AC V operating voltage CAN9E 0-0- Siemens Building Technologies Building Automation

2 Use The power amplifier is used in cases where the controller output power is not sufficient for the parallel operation of several thermic valve actuators (eg in a room with several radiators or fan-coil systems) Functions The power amplifier converts the controller output signal (AC V) into two identical signals each with an output power of VA The output of the controller is increased by 0 VA in this process Ordering When ordering, please specify the quantity, product name and type code Example: power amplifiers Equipment combinations Typically, the power amplifier is used in conjunction with type PRR radiator/chilled-ceiling controllers or with the PRFA and PRFB fan-coil controllers It may also be used in conjunction with the TEC and DESIO RX controllers to amplify an ON/OFF output Mechanical design The plastic housing of the accommodates the printed circuit board with the electronic assembly and connection terminals 0A I N P U T NS LS O U T P U T, AC V supply voltage, Input terminals Output terminals / Siemens Building Technologies Power amplifier for thermic valve actuators CAN9E Building Automation 0-0-

Mounting The amplifier can be fitted into a flush or surface mounting box or installed in a control panel With its compact size it can be installed virtually anywhere, eg in flush or surface mounting

disposal in terms of European Directive 0/9/EU and may not be disposed of as domestic garbage Dispose of the device through channels provided for this purpose Comply with all local and currently

3 Mounting The amplifier can be fitted into a flush or surface mounting box or installed in a control panel With its compact size it can be installed virtually anywhere, eg in flush or surface mounting boxes in the control panel on DIN rails or in cable ducts directly on terminal units in ceiling voids Rail mounting 09 Flush-mounting 0 Disposal The device is considered an electronics device for disposal in terms of European Directive 0/9/EU and may not be disposed of as domestic garbage Dispose of the device through channels provided for this purpose Comply with all local and currently applicable laws and regulations Technical data Power supply Supply voltage Extra-low voltage (SELV) AC V, 0/0 Hz Admissible voltage tolerance + / 0 % Power consumption From controller 0 VA From external transformer Max VA Fuse 09 A, self-resetting Signal input Input AC V (PDM ) or ON/OFF) Signal output Outputs AC V (PDM ) or ON/OFF), max VA per output Connections Connection terminals Screw terminals, mm Weight including packaging 00 kg Dimensions (W x H x D) x x mm Mounting in flush or surface mounting box on DIN rails Product safety Electrical safety Contamination level EN 00-, SELV (normal, non-conductive contamination) Ambient conditions Conditions of use For indoor use (control panel, surface or flushmounting box) Temperature range Operation: C Storage: 0 C Ambient humidity 0 90 % rh, non-condensing EU conformity (CE) CAT0xx *) ) PDM = Pulse / duration modulated *) The documents can be downloaded from Siemens Building Technologies Power amplifier for thermic valve actuators CAN9E Building Automation 0-0- /

4 Connection terminals NS LS 0B Neutral conductor Phase conductor AC V Signal ground Input signal AC V (PWM or ON/OFF) Output signal AC V (PWM or ON/OFF) Signal ground Output signal AC V (PWM or ON/OFF) Signal ground Examples of application PRFA controllers Eight T W thermic valves per output are to be connected in parallel to the PRFA/A fan-coil controller AC 0 V AC V 00 D PRFA max TW, Y;, 0 9 LS LS max TW max TW max TW STOP Caution! Note The power rating of the controller must not be exceeded One PRFA/A controller, for example, can accommodate T W valve OR a maximum of 0 controllers (max VA) Mixed operation: Connecting thermic actuators to the controller as well as to the power amplifier is NOT allowed Differing voltage of the internal transformer of the controller and the supply of the power amplifier may cause big differences in the position of the valves / Siemens Building Technologies Power amplifier for thermic valve actuators CAN9E Building Automation 0-0-

5 TEC controllers Eight SQC ON/OFF motorized actuators per output are to be connected in parallel to a TEC type RCE9 controller RCE9 RCE9 RCE9 AC 0 V AC V LS SQC 0 00C 0 max SQC BO 0 0 max SQC SQC NS LS 0 0 max SQC 0 0 max SQC Notes Thermic valve actuators can be connected as shown in the example for the PRFA controller The power amplifier cannot be used to amplify -position outputs The maximum number of power amplifiers per TEC controller may vary according to the application, but in all cases, at least two amplifiers per output can be used Other controllers The principles shown above for the PRFA can be applied to the PRONTO IRC controller types PRFB and PRR and the DESIO RX controllers: 00 E PRONTO IRC PRR, Y PRONTO IRC PRFB Y DESIO RX RX LS / Siemens Building Technologies Power amplifier for thermic valve actuators CAN9E Building Automation 0-0-

6 Dimensions All dimensions in mm 0B Published by: Siemens Switzerland Ltd Building Technologies Division International Headquarters ubelstrasse 0 Zug Switzerland Tel + - wwwsiemenscom/buildingtechnologies Siemens Switzerland Ltd 00 Delivery and technical specifications subject to change / Siemens Building Technologies Power amplifier for thermic valve actuators CAN9E Building Automation 0-0-

Room Temperature Controllers. for heating and cooling systems

Room Temperature Controllers. for heating and cooling systems 3 041 RCU10 RCU101 Room Temperature Controllers for heating and cooling systems RCU10 Choice of two-position or modulating PI control ON / OFF or PWM outputs for heating and cooling Operating modes: normal