ACVATIX™ Intelligent Valve - Control valve with integrated energy measurement EVG.., EVF.. Intelligent Valve – control valve with integrated energy data acquisition for ventilation and air conditioning plants as well as precontrol circuits. Sensorguided dynamic flow control. ● ● ● ● ● ● ● A6V11444716_en--_e 2021-09-08 Threaded valves EVG4U10E..: – DN 15…50 – Nominal volume flow 1.5…18 m3/h – Externally threaded connection per ISO-228 Flanged valves EVF4U20E..
Use The Intelligent Valve is a 2-port pressure-independent control valve (PICV) with volume flow, temperature and power measurement for heating, ventilation, and air conditioning plants. The valve can be integrated as analog (DC 0/2...10 V or 4...20 mA) or digital (BACnet IP / Modbus RTU) into the temperature control circuit. All process data (volume flow, power, primary flow and return temperature, etc.) can still be read out digitally even if integrated as analog.
Intelligent Valve as differential pressure controller The Intelligent Valve can act as a differential pressure controller for a section of the plant. In this control function, the Intelligent Valve controls independently of an automation station. Using an auxiliary differential pressure sensor [X3], it acquires the present differential pressure in the plant section and adjusts the valve position resulting in a constant differential pressure.
Technical design Basic design The Intelligent Valve combines four main functions: ● Exact, continuous volume flow measurement with an ultrasonic flow sensor ● Precise temperature measurement using paired Pt1000 temperature sensors ● Precise volume control using a control valve with a high-resolution actuator ● Dynamic hydraulic balancing, power and energy calculations, storage of cumulated flow and energy data as well as network integration via a central control unit EVG4U10E.. 1 EVF4U20E..
3 characteristic curves are available: Equal percentage, optimized in the opening range (factory setting) Recommended for heating and cooling registers, where the transfer characteristic is unknown. : Modified characteristic curve with volume flow maximum limitation at 60 % Linear Recommended for plate heat exchangers water/water or injection circuits in precontrol circuits.
Output control The design output is the reference variable. It is defined by: ● Design volume flow V̇max ● Design temperatures TVL, design and TRL, design Design output = c × design volume flow × difference of the design temperatures Q̇design ~ V̇max × (TVL, design - TRL, design) whereby Q̇max is the output limitation in %, relating to the design output of the consumption (heat exchanger/precontrol circuit).
Return temperature min./max. limitation Modern, high-efficiency output generators must have sufficient low/high return temperatures to achieve their output numbers/degree of efficiency. With Intelligent Valve, you can precisely limit the return temperature value as needed by the given plant. A return temperature maximum limitation is available if the Intelligent Valve is used in a heating application; a return temperature minimum limitation is available in a cooling application.
Sizing Sizing as dynamic control valve As a pressure-independent solution, it is generally easy to size the Intelligent Valve. If the volume flow is already a known variable, simply select the corresponding valve from the diagram below. The electronic volume flow controller ensures that the valves always achieve the specific nominal volume flow. The nominal volume flow cannot however be exceeded. We recommend selecting the valves so that the maximum volume flow V̇max must be preset to a value of 30...90 %.
Sizing as flow temperature controller As a rule, the output for transmission in this control function is available at the indicated primary design temperatures as design variables. This information can be used to calculate the required plant design volume flow which then influences the valve selection. See Engineering examples [➙ 9]. Sizing as differential pressure controller 4 design parameters are required to design as differential pressure controller: 1.
Example 1. Heating/cooling power Q̇ = 110 kW 2. Temperature difference ΔT = 6 K 3. Volume flow V[m3/h] = 110 kW × 3600 s 3 = 15.8 m /h 4190 kJ/kgK × 6 K Note: You can use the valve slider to determine volume flow. 4. Select EV.. Select the Intelligent Valve to operate at 90% of the nominal volume flow to allow for higher heating or cooling output as needed. Selection: EVG4U10E050 Δpmin = 28 kPa EVF4U20E065 Δpmin = 8 kPa 5. Evaluate presetting EVG4U10E050: 15.
Sizing diagram You can rely on the kvs value under Type summary (page Type summary [➙ 12]) to determine the pressure drop at the requested maximum volume flow. = Maximum design range with no reserve to increase the volume flow Calculated volume flow V̇ 3 15.
Type summary Threaded Intelligent Valve EVG4U10E.. Type Stock number DN V̇100 minV̇max ΔpV100 ΔpV50 3 [m / h] S55300-M100 15 1.5 0.45 14 4 EVG4U10E020 S55300-M101 20 3 0.9 36 9 EVG4U10E025 S55300-M102 25 4.5 1.35 20 5 EVG4U10E032 S55300-M103 32 7 2.1 40 10 EVG4U10E040 S55300-M104 40 11.5 3.45 20 5 EVG4U10E050 S55300-M105 50 18 5.
Cavitation Due to high speeds of the medium in the narrowest part of the valve, local negative pressure occurs (p2). If this pressure drops below the medium’s boiling pressure, cavitation occurs (steam bubbles), possibly leading to material removal (abrasion). Also, when cavitation sets in, the noise level increases abruptly. Cavitation can be avoided by limiting the pressure differential across the valve depending on the medium temperature and the prepressure.
Scope of delivery The Intelligent Valve is supplied as a complete set consisting of: EVG.. Threaded EVF.. Flanged Intelligent Valve controller Actuator Flow section (control valve and flow sensor are preinstalled) Flow sensor Temperature sensor pair for direct installation (order protective pockets separately) Temperature sensor pair including protective pockets Control valve The devices are supplied without fittings, mating flange, and gaskets. Welding sleeves, e.g.
Spare parts Type Stock number Description ASE4U10E S55845-Z205 Intelligent Valve controller for PICVs, series EVG4U.. and EVF4U.. AVG4E015VAG S55845-Z223 Control valve section PN 16 (control ball valve + flow sensor premounted) for Intelligent Valve EVG4..1.E015, DN 15 with threaded connection, kvs 4 m3/h AVG4E020VAG S55845-Z224 Control valve section PN 16 (control ball valve + flow sensor premounted) for Intelligent Valve EVG4..1.
Product documentation Title Content Document ID Intelligent Valve - Control valve with integrated energy data acquisition Data sheet: Product description EVG.., EVF.. A6V11444716 Rotary actuators for ball valves in combination with the Intelligent Valve controller Data sheet: Product description GLA161.9E/HR A6V11418678 Electromotive actuators in combination with the Intelligent Valve controller Data sheet: Product description SAX61.03/HR, SAV61.00/HR A6V11418660 Actuators SAX.., SAY.., SAV..
Symbol for hazard This is the symbol for hazard. It warns you of Risks of injury. Comply with all measures designated by this symbol to prevent injury or death.
Safety CAUTION National safety regulations Failure to comply with national safety regulations may result in personal injury and property damage. ● Observe national provisions and comply with the appropriate safety regulations. Qualified personnel NOTICE Qualified personnel! Improper installation may override safety measures that a lay person may not recognize. ● Specialized knowledge of heating and air conditioning plants is required for installation.
Valve Symbol / flow direction EVG.. / EVF.. Flow in control mode Input Intelligent Valve Output Variable Valve stem SAX.. / SAV..: Retracts SAX.. / SAV..: Extends GLA..: Clockwise rotation GLA..: Counterclockwise rotation Closes Opens The indicated flow direction (arrow on the flow sensor and valve body) must be correct; the Intelligent Valve cannot otherwise be operated! L L Do not install it at the highest point on the partial plant since air bubbles may otherwise collect in the flow meter.
We recommend installing a filter or strainer, e.g. ALX.., in the flow to the heat exchanger. This increases the reliability and life cycle of the Intelligent Valve. The flow sensor and control valve can be installed separately: Threaded versions: In general, note that the torque of the threading is very high (75...500 Nm).
Mounting The Intelligent Valve is assembled at the mounting location. No adjustments, with the exception of configuring with the ABT Go app (see Commissioning [➙ 23]) nor special tools are required. Separate mounting instructions are included with the valve and flow sensor. Mounting positions 90° 90° Mount the flow sensor in the return if the media temperatures exceed 90 °C. If not possible, mount the Intelligent Valve controller remotely from the flow sensor and use the wall-mount plate EZU-WA.
As an alternative, the sensors can be immersed directly in off-the-shelf ball valves with integrated measuring points (e.g. Siemens WZT-K.. / Jumo 902442/11) or t-pieces (e.g. Jumo 902442/31). The brass protective pockets EZT-M40 are available for mounting with protective pockets. Flanged valves EVF4U20E.. The EVF.. flanged valves include the temperature sensors EZU10-10025 for installing in the protective pockets EZT-S100 (also included). Welding sleeves must be planned on the construction side (e.g.
Commissioning The device has only a simple user interface. Siemens ABT Go app is used to actually commission the device. ABT Go App (Version 3.3.1 or later) The Siemens ABT Go app is available in iOS and Android versions in the corresponding app stores and can be used on smartphones and tablets. It connects directly over WLAN. The Intelligent Valve's own WLAN button activates the device's WLAN access point.
User interface on the device Service LED [1] ● Indicates the operating state (see table below) Communication LED [3] ● Indicates the communication state (see table below) Service button [2] ● Trigger wink ● Override setpoint and set V̇max for 10 minutes (press for 3...6 s) ● Start flow test (press for 6...8 s) WLAN button [4] ● Enable integrated WLAN Access Point for 10 min (press for ca. 0.5 s) ● Reset device to factory settings – Press both buttons ([2], [4]) at the same time for 10...
Service LED Color SVC Blinking pattern Description On Off White Continuous - Device starting up Green 0.5 s 0.5 s Device in configuration mode 4.75 s 0.25 s Normal operation 0.25 s 0.25 s Stop local forced control Blue 0.5 s 0.5 s Local forced control – Flow test Yellow 0.5 s 0.5 s Local forced control – Continuous volume flow V̇max Red 0.5 s 0.
Communication LED Color - Blue Blinking pattern On Off - - Description ● No communication ● Ethernet cable unplugged ● Device starting up 0.5 s 0.5 s WLAN enabled Continuous - WLAN data transmission 0.5 s 0.5 s TCP/IP communications error – IP address not available Continuous - TCP/IP data transmission 1) Purple 0.5 s 0.
Network integration Modbus RTU The Intelligent Valve can be integrated over EIA-485 in a Modbus RTU network. Although the RS485 standard is simple and well-proven, important requirements and experience must be taken into account. This starts with the selection of the topology: ● Best: Individual line – The best topology is a single line (line topology)m with the bus cable connected directly tot he individual devices (daisy chain). This type of connection has the fewest problems.
Warranty service Intended use WARNING Intended use Improper use can result in injury as well as damage to the product or plant. ● Siemens product may only be used with user cases set forth in the catalog and associated technical documentation. ● User-related technical data are only guaranteed in connection with the products listed in this document. Siemens rejects any and all warranties in the event that third-party products are used.
Open Source Software (OSS) Software license overview These devices use Open Source Software (OSS); see the OSS document on the specific controller type and VVS. All Open Source Software components used in the product (to include copyrights and licensing agreement) are available at http://siemens.com/bt/download. Firmware version OSS document Document ID FW01.18.xxxxx FW01.17.xxxxx Controller Title A6V12343374 Readme OSS "Intelligent Valve", V2.0 FW01.16.xxxxx FW01.15.xxxxx FW01.14.
Technical data Dimensions and weight See Dimensions [➙ 41] Power supply EVG4U10E.. EVF4U20E.. DN 65…80 EVF4U20E.. DN 100…125 Operating voltage AC 24 V ~ ±20 % (19.2...28.8 V ~) DC 24 V ⎓ ±20 % (19.2...28.8 V ⎓) Frequency 50/60 Hz Power consumption including connected field devices Operation 5W 6.25 W 8W Normal position 2.7 W 3.5 W 3.5 W Sizing 8.5 VA 14 VA 16 VA Power consumption ASE4U10E Operation 3.
Function data Control valve EVG4U10E.. EVF4U20E.. Nominal flow See Type summary [➙ 12] Adjustable flow as [%] of V100 30...100 % Control accuracy ±5 % Permissible media Chilled and hot water Medium temperature 1…120 °C Operating pressure ps 1600 kPa Differential pressure Δpmax / Δps Flow characteristic curve (Control mode "Volume flow control") Leakage rate See Type summary [➙ 12] See Type summary [➙ 12] Selectable (linear, equal percentage optimized in closing range with ngl 1...
Temperature measurement EVG4U10E.. EVF4U20E.. Measuring accuracy absolute temperature ±0.6 °C at 20 °C ±0.8 °C at 60 °C (Pt1000 EN60751, class B) Measuring accuracy temperature difference ±0.2 K at ΔT = 20 K Resolution 0.085 °C Prototype test certificate Module B per MID A0445/2112/2007 DE-06-MI004-PTB011 Permissible operating pressure for direct immersion sensor PN 16 - Housing for direct immersion sensor DS M10x1, Ø 5.2 x 26 mm, cable length 1.
Temperature measurement for power measurement, analog (Inputs B7, B26) Type Range (over range) Resolution AI Pt1000 (385/EU) -40...150 °C (-45...160 °C) -40...302 °F (-49...320 °F) 85 mK 0.153 °F Temperature measurement, analog (Input X3) in control functions "Flow temperature controller" and "Outside temperature-dependent flow temperature controller" Type Range (over range) AI Pt1000 (385/EU) AI (LG-)Ni1000 Resolution 85 mK 0.153 °F -40...150 °C (-45...160 °C) -40...302 °F (-49...
WLAN interface Interface type Wireless access point Supported standards IEEE 802.11b/g/n Frequency band 2.4 GHz WLAN channels 3 Transmission power 17 dBm Distance (unobstructed field) Min. 5 m (16 ft) Device pairing Activation/deactivation with service button Automatic switch off after 10 minutes if no WLAN client is connected. Default SSID and WLAN password SSID _ Example: Password [1] ASN ASE4U10E [2] Date / series letter / series no.
Ambient conditions Operation as per EN 60721-3-3 Climatic conditions Class 3K5 Mounting location Indoors (weather-protected) Temperature (general) -5...< 55 °C Humidity (non-condensing) 5...95 % r.h. Transportation as per EN 60721-3-2 Climatic conditions Class 2K3 Temperature -25...70 °C Humidity < 95% r.h. Storage Per IEC 60721-3-1 Climatic conditions Class 1K5 Temperature -5...55 °C Humidity 5...95 % r.h. Max.
Environmental compatibility The product environmental declarations below contain data on environmentally compatible product design and assessments (RoHS compliance, material composition, packaging, environmental benefit, and disposal). 1) ASE4U10E A6V11684717 1) AVG4E..VAG A6V11654066 1) AVF4E.. A6V11654064 1) ALF4E.. A6V11654081 1) EZU10-.. A6V11684742 1) GLA161.9E/HR A6V101033533 1) SAV61.00/HR A6V10450170 1) SAX61.03/HR A6V10691442 1) VVF42..KC A6V10824366 1) EZT..
Connecting thread Description 1, 2 Ethernet 2 x RJ45 interface for 2-port Ethernet switch Terminal Power SELV/PELV AC/DC 24 V System zero ⏊ Setpoint input Intelligent Valve: DC 0/2...10 V; 4...20 mA (Passive or active temperature sensor in the control function “Outside temperature-dependent flow temperature controller”) X1 Actual value output Intelligent Valve: DC 0/2...10 V; 4...
Connection diagram For the control function “Dynamic control valve” – Setpoint source terminal N1 Automation station FS Flow sensor ASE.. Intelligent Valve controller B7 Temperature sensor blue A Actuator (e.g. GLA161.9E/HR) B26 Temperature sensor red For the control function “Dynamic control valve” – Setpoint source Modbus 38 Siemens Smart Infrastructure N1 Automation station FS Flow sensor ASE.. Intelligent Valve controller B7 Temperature sensor blue A Actuator (e.g. GLA161.
For the control function “Differential pressure controller” – Setpoint internal N1 Automation station B7 Temperature sensor blue ASE.. Intelligent Valve controller B26 Temperature sensor red A Actuator (e.g. GLA161.9E/HR) X3 Differential pressure sensor (e.g. QBE3000-D2.5) 1) FS Flow sensor 1) Temperature sensors are not included; they have to be ordered separately.
For the control function “Outside temperature-dependent flow temperature controller” N1 Automation station B26 Temperature sensor red ASE.. Intelligent Valve controller X1 Outside temperature sensor, passive (e.g. QAD22) or active (e.g. QAF3161) 1) A Actuator (e.g. GLA161.9E/HR) X3 Temperature sensor, passive – secondary flow temperature (e.g. QAD26.
Dimensions Intelligent Valve controller, ASE4U10E 115 196 58 M20 M16 58 39.5 M16 39.5 76 M20 76 96 115 111 213 Dimensions in mm 0.
Threaded, EVG4U10E.. min. 200 H2 min. 200 F L6 L1 L4 L5 G1 L2 min. 200 G2 L3 F1 F1 min. 200 F L7 L8 min. 100 H1 F2 min. 100 F3 F2 F3 Dimensions in mm Valve type F F1 F2 F3 G1 G2 H1 H2 L1 L2 L3 43.5 21.5 115 60 382 321 2.5 26 130 65 351.5 291 2.9 29 150 75 377 317 3.5 145 77.5 380 320 3.7 EVG4U10E015 G1B 130 110 232.5 EVG4U10E020 G 1¼ B 130 112 273 EVG4U10E025 G 1½ B 132.
Flanged, EVF4U20E.. DN 65…100 DN 125 Dimensions in mm Valve type B1 B2 D D2 D3 D4 EVF4U20E065 17 19 184 18 (4x) 19 (4x) 170 EVF4U20E080 19 18 200 19 (8x) EVF4U20E100 20 EVF4U20E125 15 23 220 250 19 (8x) 185 19 (8x) 216 E F H1 316 124 150 375 388 H2 K1 K2 L1 L2 L3 136 145 145 591 145 174 143 160 154 180 160 611 155 186 180 711 175 206 210 800 200 228 L4 L5 300 150 360 180 30.3 40.9 61.6 81.
Temperature sensors EZU.., protective pockets EZT.. EZT-M40 8 EL M10 x 1 AL GW 2.4 D 6.4 - 6.6 D G EZU10-2615 L EL EZT-S100 GW 8 D G 1/4 D EZU10-10025 / EZU10-10060 L 14 EL EL AL Dimensions in mm Temperature sensors Type EZU10-2615 EZU10-10025 EZU10-10060 Protective pockets D EL G AL 5.2 26.5 M10x1 1500 EZT-M40 5.2 50 2500 EZT-S100 6.2 100 6 92.5 - Type D EL L GW SW 40 G¼ 17 92.5 G½ 27 6000 Revision numbers Type Valid from rev. no.
