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1 Installation guide Thermal Energy Meter uerstatic 749 Installation The rescritions related in the standard EN must be resected when the uerstatic 749 is installed. In the standard version, the integrator is arameterised by default for installation on the cold ie side. Installation on the hot ie side must be secified with the order. Deending on version and use (heat and/or cooling meter), the energy meter must be fitted on the cold or hot ie side of the installation in comliance with the chosen configuration. If the device was ordered with the configuration otion, some arameters can be changed using the Config menu during commissioning. In a same installation, mixed mounting ositions (horizontal and vertical) can be realized. Place the flow meter correctly according to the direction of the fluid (an arrow can be seen on the flow meter). Horizontal mounting with the integrator facing downwards is not ermitted. Also avoid fitting in a osition which may cause an air bubble to build u inside the mechanical meter. Horizontal Mounting osition: The sensor head MUT be laced to the side +/- 45 in relation to the ie axis to avoid influences of air inclusions (to) or dirt (bottom). Vertical mounting osition: Mounting in riser or down ies ossible. The energy meter must be fitted between two shutoff valves. The flow meter must be installed ahead of any monitoring valves so as to avoid any otentially interfering influence. Waterroof will be checked at the various mounting oints. The heat conveying liquid must be equivalent to water without any additives according to standard FW510 of the AGFW (German District Heating Association). If additives are added to the water, the user must ensure the comatibility of the materials used in the thermal energy meter which are in contact with these additives. The integrator can be searated from the flow meter and installed at a sufficient distance from the flow meter if: - The meter has to be installed in a confined sace. - In a cooling installation, ossibility to isolate the flow meter. The ies are generally free from air before the installation is brought into service. Follow the insulation instructions for cooling installations. Final commissioning must be erformed and documented. After mounting and before commissioning urge system > 10 min at q to avoid air bubbles. Wall-mounting of the integrator The integrator can be searated from the flow meter and fixed against a wall using the wall fixture sulied with the energy meter. If ossible, install the wall fixing comonent above the flow meter. The wall fixing comonent, together with a double-sided adhesive tab, is delivered with the uerstatic 749 (Figure 1). The wall fixing comonent can also be screwed on to the wall (screws are not sulied). To searate the integrator from the flow meter ress laterally with one hand on the two locking buttons, while ulling the integrator uwards (Figure 2). Fix the integrator onto the wall fixing comonent taking care not to jam the cable which connects the integrator to the flow meter and stick the adhesive tab behind the wall comonent. ecure the assembly to the wall (Figure 3). Figure 1 Figure 2 Figure 3 To remove the integrator from the wall suort, it will be sufficient to ress laterally on the two locking buttons while ulling the assembly towards you. Rewind the connection cable at the osition rovided for this urose on the flow meter (1) and re-insert the integrator (2). (2) (1) 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

2 Mounting the temerature sensors The temerature sensor in the flow meter has no marking. The temerature sensor with the orange mark means that the sensor must be mounted in the ie oosite to the uerstatic 749. Examle: If the flow meter is installed on the warm side (Hot Pie), the temerature sensor with the orange mark will be mounted in the cold side (Cold Pie). The uerstatic 749 is delivered with a cable length of 1.5 m for the temerature sensors. The temerature sensors form a sub-assembly matching the integrator. The temerature sensor cables must be neither shortened nor lengthened. The temeratures of use shown on the label must be resected. A temerature sensor may be fitted directly in the uerstatic 749 flow meter. The temerature sensors will referably be fitted directly, in other words one temerature sensor will be fitted in the flow meter while the other sensor will be installed on the other side of the heat exchanging circuit. Tightening the nuts of the sensors Ø 5 and Ø 5.2mm with ½ to ¾ turn from the com of the seal. When sensor ockets are emloyed, these must be used secifically for the two temerature sensors and must corresond to the list set out below. Asymmetrical mounting is also ossible. In that case the temerature sensor having a cable marked with orange will be fitted in the other side of the heat exchanging circuit in a sensor ocket defined according to the table set out below. To guarantee accuracy in this tye of use, the following condition must be resected: at a flow rate < 100 l/h, the temerature difference has to be equal or larger then 6K, T min 6 K. Make sure that the sensors are mounted until they stall with the bottom of the sensor ocket. ensor ockets list Temerature sensors Versions Pocket Article number Material Temerature range Ø 5x31 mm Pt1000 M10x1 60A212 Brass C Ø 5x 31 mm Pt1000 G3/8" 60A213 Brass C Ø 5x 31 mm Pt1000 G1/2" 60A214 Brass C Ø 5.2x 31 mm Pt1000 M10x1 60A215 Brass C Ø 5.2x 31 mm Pt1000 G3/8" 60A216 Brass C Ø 5.2x 31 mm Pt1000 G1/2" 60A217 Brass C Direct mounting in a T tube The temerature sensor is on the same level and erendicular to the ie axis (DN15, DN20): Fitting temerature sensors for refrigeration alications Insulation will only be rovided as far as the fixing screw The temerature sensor fixing screw must not be covered by any kind of insulation. This likewise alies if the sensor is fixed directly in the flow meter. Mounting of the integrator for a cooling alication Only the flow meter can be fully isolated. earate the integrator from the flow meter and fix using the wall suort aid 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

3 Installation of the uerstatic 749 To install the uerstatic 749, the following stes must be resected : Flush out the installation ies carefully in comliance with the DIN/EN standard secification. Close the shutoff valves before and behind the meter. Oen the drainage valve to reduce the ressure and discharge the water contained in the ie between the two shutoff valves. Consider the direction of flow circulation. Check the flow direction with the arrow figuring on the flow meter. Place a gasket on each side of the flow meter. Only use aroriate new gaskets. Make sure that the gaskets are carefully ositioned in relation to the water ie and flow meter unions. Tighten the fixing nuts firmly by hand. Then tighten u to the mechanical end sto using a mounting tool. Install the temerature sensor. Turn the dislay into the desired osition for reading. Check the waterroof of the meter laced under ressure. eal the flow meter and the temerature sensors. Mounting cable for the ulse inut function The ulse inuts are built with ELV circuits (afety Extra Low Voltage) and must be only connected with ELV circuits. The electrical characteristics are dislayed on age 8. Mounting cable for the ulse outut function The ulse oututs are built with ELV circuits (afety Extra Low Voltage) and must be only connected with ELV circuits. The electrical characteristics are dislayed on age 8. General The comact thermal energy meter uerstatic 749 is a recision measuring instrument aroved for individual metering of heating systems and must be handled with care. The uerstatic 749 is available in a heating or cooling version and determines the thermal or cold energy exchanged by a heat-bearing fluid in a heat exchanger circuit. The uerstatic 749 comlies with the requirements of the Euroean Directive MID 20/22/EC modules B and D and of the standard EN 1434 class 2. Imortant! The energy meter may only be used under the conditions indicated on the manufacturer s rating late! In the event of failure to comly with these instructions, the manufacturer declines all liability. The seals must not be removed or may be removed only by authorised ersons. If these conditions are disregarded, the factory warranty and the calibration will no longer be the manufacturer s resonsibility. The manufacturer will not be liable in the event of any modification of the metrological data or of the measurement arameters if the manufacturer s seal is damaged. The manufacturer will not be liable in the event of any modification of the metrological data or of the measurement arameters if the manufacturer s seal is damaged. For cleaning, a moist cloth is sufficient. Do not use solvents. Do not shorten the cable between the flow meter and the integrator and the cables for the temerature sensors or modify them in any way whatsoever. Before installation Check the installation data and comare them with the secific characteristics of the thermal energy meter. The rules for installation and those relating to the roject must be resected. The environmental temerature range for the energy meter is ºC. Make sure that the meter and the labels can be read easily. All connections must be made at a minimum distance of 300 mm from high frequency or high voltage cables. Avoid thermal radiation and interfering electrical fields near the integrator and connection cable. As a rule, the integrator must be installed at a distance from ies carrying refrigerating fluids. Action must be taken to ensure that no condensation water can enetrate inside the integrator. If there is any risk of vibrations, the integrator must be installed searately on the wall. If the secific temerature of the fluid within the flow meter regularly reaches 90 C, the integrator must be installed searately from the flow meter. It is advisable to drain the installation before fitting the flow meter. This will enable any foreign body to be withdrawn from the ie. ecurity with lithium batteries 3V lithium batteries are used. Certain security rules must be resected: the relacement of batteries or to add a second battery is not allowed. During recycling, the following oints must be resected: Do not recharge or short-circuit, rotect against humidity, do not exose to heat, do not throw batteries in fire, kee out of reach of children. Advice on disosal: In order to maintain and rotect the environment, to reduce waste of natural resources and revent ollution, the Euroean Commission has established guidelines according to which manufactures must take back electrical and electronic devices in order to forward them to a regulated disosal or recycling system. If you disose of the batteries yourself, enquire about the ossibilities of recycling in your region. 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

4 Commissioning from the storage mode Ex works the flow meter can be in the storage mode, that is to say, it does not count and the dislay shows "Disabled". The storage mode is active as long as the meter is not sealed "eal". In the storage mode, the transition to "Config" menu is made with a short ress on the orange navigation button. Another short ress gives access to the whole sequence of the "Normal" mode. Cou P g OFF erv ce E ergy DIABLED Cold. e // awh PUH Co F G PUH Long EAL CHANGE Automatic change Pression longue Cold. e Long PUH Automatic change Normal Mode CHANGE Automatic change Long awh PUH CHANGE Automatic change Long PUH Pression In the "Config" menu (otionally available), a long ress will change the settings below: Flow meter mounting osition in the installation. Hot (HOT PIPE) or cold side (COLD PIPE). Energy unit (0.1kWh, 1 kwh, 0.0, 0., 0.0GJ and 0.GJ). Volume unit (0. m3 and 0.0m3). In the "Config" menu any inaction (i.e. with no ressure on the navigation button) lasting 3 minutes causes the automatic exit and returns to "Disabled". If changes were made in the "Config" menu, the data remain stored. When "Disabled" is dislayed, a long ress on the navigation button validates the arameters of the flow meter. The indication "eal" flashes four times on the dislay and it changes to "Normal" counting mode. From that moment, the storage mode ("Disabled" and "Config") is not accessible anymore. Checking oeration Make sure that the measurements indicated by the meter are coherent using the orange button which you will find on the meter. The following values can be shown on the LCD dislay: flow, ower, hot and cold temeratures. The communication arrows ermit dislay of the controls (inuts) and resonses of the instrument (oututs). All the dislay arameters will be used to check and adjust the installation. In articular, you must make sure that the maximum flow rate of the installation does not exceed the maximum flow rate authorised for the meter. To comlete the functional analysis, the commissioning rotocol can be saved using the Prog7x9 software via the otical interface. 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

5 Error codes The uerstatic 749 integrator dislays an error message with the 3 letters Err and a code. If several errors occur at the same time, the different codes are added together. The error is dislayed in the first osition of the dislay menu. It will still be ossible to select all the other dislay menus by ressing the navigation button. If the navigation button is no longer ressed for a eriod of 3 minutes, the error code will automatically aear again in the first osition of a dislay menu. Dislay of an error automatically disaears when the error is no longer resent. Err 1: Flow higher than 1.2 x qs or defective hydraulic sensor. Err 2: Measured temerature outside the homologated range or temerature sensor defective. To make sure that the temerature sensors have not been cross during assembly, the temerature difference between the outward and return temeratures can be checked on the dislay. Deending on the use (thermal or refrigerating), this temerature difference may be either ositive or negative. Dislay The uerstatic 749 LCD dislay has been designed to be large enough and erfectly readable by the user. Dislay sequence To dislay general data on the integrator, several windows have been created in the form of menu/sub-menu functions. Deending on the chosen version of the energy meter, some menus may be added. The Energy window of the main menu is the basic dislay. The navigation button enables the user to change from one menu to another and to access the different ositions within a menu. ressure on the navigation button ermits transition from one menu to another or continuation to the next dislay while remaining in the same menu. Long ressure (> 2 seconds) on the navigation button gives access to sub-menu within a menu or enables the Energy window to be dislayed from within a menu. After 3 minutes, the dislay automatically reverts to the basic Energy window. 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

6 Detailed dislay sequences in Normal Mode: Kumulierte Energie Energie cumulée Cumulated energy Energie Energie Energy Datum tichtag Jour de relève Date set day tichtag Jour de relève et Day Kumulierte Volumen Volume cumulé Cumulated volume Volumen Volume Volume Kumulierte Energie Tariff 1 Energie cumuléetariff 1 Cumulated energy Tariff 1 Energie Tariff 1 Energie Tariff 1 Energy tariff 1 Letzter Monastwert Energie Energie au mois dernier Last monthly value energy Energie Monat -2 Energie au mois -2 Energy month -2 Energie Monat -3 Energie au mois -3 Energy month -3 Energie Monat -4 Energie au mois -4 Energy month -4 Energie Monat -5 Energie au mois -5 Energy month -5 Energie tichtag Energie à la relève Energy set day Volumen tichtag Volume à la relève Volume set day Energie Tariff 1 tichtag Energie Tarif 1 à la relève Energy Tariff 1 set day Imulseingang 1 tichtag Val. Cumul. 1 à la relève Pulse inut 1 set day Imulseingang 2 tichtag Val. Cumul. 2 à la relève Pulse inut 2 set day Letzter Monastwert Volumen Volume au mois dernier Last monthly value volume Volumen Monat -2 Volume au mois -2 Volume month -2 Volumen Monat -3 Volume au mois -3 Volume month -3 Volumen Monat -4 Volume au mois -4 Volume month -4 Volumen Monat -5 Volume au mois -5 Volume month -5 Letzter Monastwert Energie Tariff 1 Energie au mois dernier Tariff 1 Last monthly value energy Tariff 1 Energie Tariff 1 Monat -2 Energie Tariff 1 au mois -2 Energy Tariff 1 month -2 Energie Tariff 1 Monat -3 Energie Tariff 1 au mois -3 Energy Tariff 1month -3 Energie Tariff 1 Monat -4 Energie Tariff 1 au mois -4 Energy Tariff 1 month -4 Energie Tariff 1 Monat -5 Energie Tariff 1 au mois -5 Energy Tariff 1 month -5 Energie Monat - Energie au mois - Energy month - Volumen Monat - Volume au mois - Volume month - Energie Tariff 1 Monat - Energie Tariff 1 au mois - Energy Tariff 1 month - Kumulierte Wert Valeur cumulée Cumulated value Zusatzzähler 1 Comteur additionel 1 Additional meter 1 Zusatzzähler 2 Comteur additionel 2 Additional meter 2 ervice COL8.PIPE Einbauort Durchflusssensor Position de montage débitmètre Flowmeter mounting osition Letzter Monastwert Valeur au mois dernier Last monthly value Wert Monat -2 Valeur au mois -2 Value month -2 Wert Monat -3 Valeur au mois -3 Value month -3 Wert Monat -4 Valeur au mois -4 Value month -4 Wert Monat -5 Valeur au mois -5 Value month -5 Wert Monat - Valeur au mois - Value month - Legende Légende Legend tandardanzeige Position standard tandard indication Wird nur angezeigt wenn die Otionverfügbar ist Affiché seulement si l otion est disonible Only indicated if the otion is available Kurzes Drücken / Pression courte / on button Langes Drücken / Pression longue / Long on button I F 34.5 C 23.4 C A FF. 1. K /h kw h Identifikationsnummer Numéro d identification Identification number M-Bus Adresse Adresse M-Bus M-Bus address Radio Adresse Adresse Radio Radio address Hoche Temeratur Temérature haute High temerature Tiefe Temeratur Temérature basse Low temerature Temeraturdifferenz Différence temérature Delta temerature Aktuelle Durchfluss Débit actuel Actual flow Aktuelle Leistung Puissance actuelle Actual ower Aktuelle Zeit Heure actuelle Time of device Aktuelles Datum Date actuelle Date of device Betriebsstunden Durée d utilisation Running hours oftwareversion Version software W version egmenttest Test des segments Test LCD 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

7 Communication interface and otions The communication interfaces are installed and reset in the factory. When ordering, you must secify the interface tye: remote owered M-Bus, Radio uercom or Wireless M-Bus (OM) and ulse oututs. Pulse inut function Deending on the defined variant, the uerstatic 749 offers the ossibility of advantageously integrating u to two further ulse inut meters, for instance a hot water meter and a cold water meter. The value of the ulse factor is rogrammable via the Prog7X9 software. By default, the ulse factor will be 1 Pulse/Unit for each ulse inut. The meter data are aggregated searately in totalizers and can be shown on the dislay as and ; they can also be transferred via the communication interface which is installed in the integrator. The uerstatic 749 is delivered with a cable length of 1.5 m for the ulse meters. Pulse outut function Deending on the defined variant, uerstatic 749 offers the ossibility of integrating two oen collector ulse oututs which can reresent hot energy, cold energy or volume. Thermal version: - Outut 1 = Hot energy - Outut 2 = Volume Thermal/cooling version: - Outut 1 = Hot energy - Outut 2 = Cold energy Whenever the smallest energy unit (hot or cold) and/or volume dislayed on the screen is incremented, 1 ulse will then be transmitted on the corresonding outut cable 1/2. Examle for energy: Dislay kwh ==> outut ulse value for energy = 1 kwh / ulse Dislay 12345,678 ==> outut ulse value for energy = 0.0 / ulse Dislay ,78 GJ ==> outut ulse value for energy = 0. GJ / ulse Examle for volume: Dislay 12345,678 ==> outut ulse value for volume = 0.0 / ulse Dislay ,78 ==> outut ulse value for volume = 0. / ulse The uerstatic 749 is sulied with a cable length of 1.5 m for ulse oututs. Electrical characteristics of the ulse oututs: oen collector 1 Hz 500 ms. Otical interface The otical interface is installed by default on each uerstatic 749. Communication between the Prog7X9 software and uerstatic 749 can be effected with an otical couler. The transmission seed via an otical couler is set at 2400 bauds and cannot be changed. We recommend the use of otical coulers sulied by: hould communication roblems be encountered, lease refer to the document User Guide Prog7X9 (integrated as PDF in the software). Configuration recognised by otical coulers: For the otical robe listed below, we have noted the filters needed to ermit correct communication with Prog7X9 software: Otical robre Filter P+E Technik : "K1-98" or "K1-06" No filter P+E Technik : "K-UB" No filter uercom Radio The uercom Radio communication interface ermits communication between all uercom ontex radio roducts. For this communication interface to be available, it must be secified when the order is laced. The radio module will therefore be installed and configured in the factory. uercom ontex units make use of a bi-directional radio technology which is a reliable solution with high erformance for a remote metering system (fixed or mobile). The technology emloyed is based on MFD and Radian 0 rotocols and works at a frequency of MHz. The units fitted with the Radio module can be accessed 365/365 days er year from 06:00 to 20:00. The radio address is dislayed in the ervice menu if it corresonds to the serial number of the uerstatic 749. Technical data of the radio communication system: Bi-directional communication; FK Modulation; Frequency MHz; Radian 0 radio rotocol. The life cycle is calculated for normal metering. Factors such as: the environmental temerature during use, the number of readings taken etc. influence the battery service life. Wireless M-Bus Radio The radio module Wireless M-Bus is used to transfer data according to the wm-bus (EN ) radio communication rotocol and in comliance with the OM (Oen Metering ystem) Release V To have this interface of communication available, it will be necessary to secify by ordering. The radio module Wireless M-bus will be installed and configured at the factory. A secific notice will be added with the standard documentation. Powered remote M-Bus The owered remote M-Bus communication interface is a serial interface which ermits communication between different M-Bus devices via a central M- Bus station (er examle: ontex 634). For this communication interface to be available, it must be secified when the order is laced. The owered remote M-Bus module will therefore be installed and configured in the factory. The M-Bus rotocol is comliant with standard EN By default, the rimary address will be configured with the address 0 and the secondary address will corresond to the serial number of the uerstatic 749. To change the value of the secondary address, you must use Prog7X9 software or send M-Bus secific orders. The secondary address corresonds to the identification field ID. The rimary address is dislayed in the ervice menu with the indication [Addr:]. Technical data for the M-bus communication system: M-Bus rotocol comliant with standard EN ; free otential interfacing without olarity (the voltage measured on the last device must exceed 36VDC); transmission seed 300/2400 Baud; variable data structure. A M-bus device is seen as two M-Bus charges by the Master. Tye of cable recommended: telehone cable JYtY N*2*0.8 mm P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

8 ecurity seals As sealing varies from country to country, local regulations must be followed. To rotect the system against all unauthorised maniulations, the energy meter, the connection screws, the temerature sensors and the sensor ockets must all be sealed. The seals may only be removed by authorised ersons. In the event of failure to comly with this instruction, the guarantee obligation will lase. It is imortant for the wire seal to be as short as ossible so that it is slightly taut. This is the only way of reventing malicious interference. Position of the seals: 1 1 eals installed in the factory (1) on flow meter and temerature sensor of the uerstatic 749 The detector suort fitted on the flow sensor can t be removed without being damaged or broken. A factory seal (1) will be alied to the temerature sensor mounted in flow meter. To mount the temerature sensor on the other side of the installation, the ontex seal sulied with the meter must be used ( written in black on a grey background). eal installed in the factory on the integrator 0749P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland

9 Technical data uerstatic 749 Flow sensor q Threaded connection Mounting length Mat. PN Maximal flow qs Minimal flow qi Low flow threshold value (50 C) Threaded hole for sensor Weig ht Kvs value (20 C) Pressure loss at q /h G" DN mm bar /h l/h l/h kg /h bar (EN IO 228-1) 0.6 3/4" (15) 110 Brass 16 1,2 6 4 Yes /4" (15) 110 Brass Yes " (20) 130 Brass Yes " (20) 190 Brass Yes " (20) 130 Brass Yes " (20) 190 Brass Yes L. Mounting length The flow sensor uerstatic 749 can be oerated from 0,8 bar in the ie; Length of straight section fitted ustream/downstream of each flow meter (EN1434): The integrator 16 bar = 1.6 MPa U3 / D0 for: L=110mm U0 / D0 for: L=130mm U0 / D0 for: L=190mm Temerature sensors Environment class Temerature sensor 2 wires Pt1 000 Diameter Ø5.0; Ø5.2, Ø6.0 mm Cables length 1.5 m Admissible range C Differential range 3 75 K Resonse limit 0.5 K Temerature resolution (dislay) 0.1 K Temerature resolution t 0. K Measurement cycle for temerature from 10 seconds Measurement cycle for flow * Permanently * The oscillating measurement rincile and the differential ressure iezo sensor ensures at any time that all ulses, ie, all volume is detected. In contrary to the ultrasonic measuring rincile, no scanning with a signal through the water is necessary. Environment class C Mechanics M1 Electronics E1 Battery rotection class III Cable connection between flow sensor and integrator 0.6 m, fix Protection index IP 65 Permissible temerature Oeration Oeration: radio version torage and transort 5 55 C 5 40 C C Power suly Lithium battery 3V 6+1 or 12+1 years Pulse outut Oen drain (MO Transistor) Vcc max : 35 V DC ; Icc max : 25mA 1 Hz, 500 ms Pulse inuts with a dry contact Power suly internal Powered by M-Bus line R ull UP internal Pulse factor 2.3 V DC 2 MΩ /Im or without unit 1 device = 2 M-Bus charges (max 2 x 1.5mA) Metrological class EN 1434 class 2 CE conformity according to Tye Examination Certificate Directive 20/22/EC (MID) R &TTE guideline 1999/5/EC CH-MI0-139 Technical suort For technical suort, lease contact your local ontex agent tockshed Limited. Contact: info@stockshed.com +44 (0) Detailed declarations of conformity can be found on our homeage: Modifications subject to change without notice ontex A P300-E Installation uerstatic 749 EN ontex A, 26 onceboz, witzerland