DATA SHEETT 5757-7 ENTROVIS 5757-7 Electric Actuator with Process Controller For heating and cooling applications Application Electric actuator with process controller for heating, ventilation and air-conditioning systems Special features The electric actuator with process controller is an electric actuator combined with an integrated digital controller for force-locking valves (DN 15 to 25). It is designed for installations in small to medium-sized buildings for outdoor-temperature-compensated control, fixed set point control or fixed set point control with room temperature sensors. It is particularly suitable for mounting to SAMSON Types 3222, 3222 N and 2488 Valves as well as to special versions of Type 3226 and Type 3260 Valves. • Outdoor-temperature-compensated control of a heating circuit • The flow temperature is controlled based on the outdoor temperature over an adjustable heating characteristic. A binary input allows switching between rated and reduced operation or between rated and stand-by operation with frost monitoring. As an alternative to the binary input, the gradient or a level displacement of the heating characteristic can be changed by the adjustment knob of a room sensor. • Fixed set point control • This function is used to control the heating circuit to a fixed set point. • Fixed set point control with room sensor • The set point is changed by the room temperature. A permanently active flash adaptation adapts the supply of heat to the required demand by changing the flow temperature. • Return flow temperature limitation • The temperature of the return flow is monitored. When an adjustable maximum limit is exceeded, the flow temperature is reduced until it remains below the limit. • Possible connection of Type 5257-71 Room Panel: - Convenient room panel with various operating mode settings (Day mode • Night mode • OFF/frost protection) - Binary input on room panel for remote switchover Hg.1 : TROVIS 5757-7 Electric Actuator with Process Controller - Possible override of the flash adaptation based on the room temperature or heating characteristic (gradient or level with outdoor-temperature-compensated control) implemented by the electric actuator with process controller • Frost monitoring and automatic initiation of protective action • Automatic anti-blocking function prevents circulating pumps from seizing up • Configuration, parameterization, diagnostic function and online connection for monitoring using the TROVIS-VIEW software - Direct data transmission using a connecting cable (direct connection to computer) - Data transmission using a memory pen SAMSON AKTIENGESELLSCHAFT ■ WeismullerstraBe 3 ■ 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 ■ Fax: +49 69 4009-1507 ■ [email protected] ■ www.samson

Design and principle of operation 8 The output signal of the digital controller functions as a threestep signal on the synchronous motor of the actuator and is transferred over the connected gear to the actuator stem (3 in Fig. 2) and used as the positioning force. The motor is switched off by torque switches when an end position is reached or in case the motor is overloaded. When the actuator stem extends, the valve is closed, opposing the force of the valve spring (7 in Fig. 2). When the actuator stem retracts, the valve is opened as the plug stem (6 in Fig. 2) follows the motion of the return...

1 The default setting F13 - 1 applies for level #2.

Outdoor-temperature-compensated flow temperature control with return flow temperature limitation; with binary contact to switch between operating modes RS Room sensor/room panel RuS Return flow sensor UP Circulation pump (heating) RL District heating return Sales District heating supply Fixed set point control with room sensor with return flow temperature limitation; Operating mode switchover at room panel (Type 5257-71) ! DANGER Live wires Do not touch wire ends. Insulate any wires that are not used. Fig. 5: Electrical connection of TROVIS 5757-7 • Supply line

Application with flow sensor (VS), return flow sensor (RuS) and outdoor sensor (AS) and potentiometer functioning as set point adjuster Application with flow sensor (VS), outdoor sensor (AS), binary input to switch between operating mode and potentiometer for adjusting the set point Application with flow sensor (VS), return flow sensor (RuS) and outdoor sensor (AS) and binary input to switch between operating modes GN Fig. 6: Electrical connection of TROVIS 5757-7 • Control line (part I) OG Orange YE Yellow RD Red BN Brown BK Black GN Green

Application with flow sensor (VS) and outdoor sensor (AS) Application with flow sensor (VS), return flow sensor (RuS) and room sensor with mode selector switch and room set point adjuster Fig. 7: Electrical connection of TROVIS 5757-7 ■ Control line (part 2)

Table 1: Technical data ■ Electric actuator with process controller 1 Recommendation: use devices with gold contacts when using relays. 2) Insulate any wires that are not used. 3) The permissible medium temperature depends on the valve on which the electric actuator with process controller is mounted. The limits in the valve documentation apply.

Fig. 8: Dimensions in mm ■ TROVIS 5757-7 Electric Actuator with Process Controller Accessories for heating control Type 5227-4 Outdoor Sensor (Pt 1000) Type 5257-71 Room Panel (Pt 1000) Day mode (rated operation) Off/frost protection ( Night mode (reduced operation) Type 5267-3 Contact Sensor (Pt 1000) (flow and return flow temperature measurement)

TROVIS 5757-7 Electric Actuator with Process Controller - With switching output Associated mounting and operating instructions - TROVIS 5757-7 Electric Actuator with Process Controller Quick guide Electric Actuator with Process Controller Associated configuration manual Electric Actuator with Process Controller - Type 5267-3 Contact Sensor (Pt 1000) - Type 5257-71 Room Panel - Type 5227-4 Outdoor Sensor Specifications subject to change without notice