Evoplus 80180 M - Pump DAB - Free user manual and instructions

USER MANUAL Evoplus 80180 M DAB

8.2 Electrical connections of Inputs, Outputs and MODBUS ......... 27

10.1.1 Regulation with Proportional Differential Pressure ......... 30

10.1.2 Regulation with Constant Differential Pressure .............. 30

10.1.3 Regulation with constant curve ...................................... 30

10.1.4 Regulation with Constant and Proportional Differential

The frontispiece shows the version of this document in the form Vn.x. This version indicates that the document is valid for all software versions of the device n.y. For example: V3.0 is valid for all Sw: 3.y. In this document the following symbols will be used to avoid situations of ranger: Situation of general danger. Failure to respect the instructions that follow may cause harm to persons and property. Situation of electric shock hazard. Failure to respect the instruc- tions that follow may cause a situation of grave risk for personal safety.

Read this documentation carefully before installation. Installation, electrical connection and commissioning must be carried out by specialised personnel, in compliance with the general and local safety regulations in force in the country in which the product is installed. Failure to respect these instructions not only causes risk to personal safety and damage to the equipment, but invalidates every right to assistance under guarantee. The appliance is not intended to be used by persons (including children) with reduced physical, sensory or mental capacities, or who lack experi- ence or knowledge, unless, through the mediation of a person respon-

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tions on the use of the appliance. Children must be supervised to ensure that they do not play with the appliance. Ensure that the product has not suffered any damage during transport or storage. Check that the outer casing is unbroken and in excellent conditions.

Use is allowed only if the electric system is in possession of safety pre- cautions in accordance with the regulations in force in the country where the product is installed.

The Manufacturer does not vouch for correct operation of the machine or answer for any damage that it may cause if it has been tampered with, PRGL¿HGDQGRUUXQRXWVLGHWKHUHFRPPHQGHGZRUNUDQJHRULQFRQWUDVW with other indications given in this manual.

Always switch off the mains power supply before working on the electrical or mechanical part of the system. Wait for the war- ning lights on the control panel to go out before opening the appliance. The capacitor of the direct current intermediate circuit remains charged with dangerously high voltage even after the mains power has been turned off. 2QO\ ¿UPO\ FDEOHG PDLQV FRQQHFWLRQV DUH DGPLVVLEOH 7KH DS- pliance must be earthed (IEC 536 class 1, NEC and other appli- cable standards). Mains terminals and motor terminals may still have dangerous voltage when the motor is stopped. If the power cable is damaged, it must be replaced by the techni-

The machine has been designed and made for pumping water, free from

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Kg/m³, a kinematic viscosity of 1mm²/s and non chemically aggressive liquids. It is possible to use ethylene glycol in a percentage of no more than 30%.

EVOPLUS series circulators allow integrated adjustment of the differ- ential pressure which enables the circulator performance to be adapted to the actual requirements of the system. This determines considerable energy saving, a greater possibility of control of the system, and reduced noise. EVOPLUS circulators are designed for the circulation of: - water in heating and conditioning systems. - water in industrial water circuits. - domestic water only for the versions with bronze pump body. EVOPLUS circulators are self-protected against: - Overloads - Lack of phase - Excess temperature - Over-voltage and under-voltage

Supply voltage 1x220-240 V (+/-10%), 50/60 Hz Absorbed power See electrical data plate Maximum current See electrical data plate Grade of protection (electronic control device in vertical position) IPX4D Grade of protection (electronic control device in horizontal position) IPX0D Protection class F TF Class TF 110 Motor protector No external motor protector is needed Maximum environment temperature 40 ºC Liquid temperature -10 ºC ÷ 110 ºC Flow rate See Table 1 Head See Table 1 Maximum working pressure 1.6 MPa Minimum working pressure 0.1 MPa Lpa [dB(A)] <= 45ENGLISH

4.0 27.90 D 40/340.65 M 4.0 50.22ENGLISH

8.0 38.30 D 80/340.65 M 8.0 68.94

10.0 41.71 D 100/340.65 M 10.0 75.08

EVOPLUS circulators respect standard EN 61800-3, in the C2 category, for electromagnetic compatibility. - Electromagnetic emissions - Industrial environment (in some cases restrictive measures may be requested). - Conducted emissions - Industrial environment (in some cases re- strictive measures may be requested).

All the circulators must be stored in a dry covered place, with possibly constant air humidity, free from vibrations and dust. They are supplied in their original pack in which they must remain until the time of installation. If this is not the case, accurately close the suction and delivery mouth.

Avoid subjecting the products to needless impacts and collisions. To lift and transport the circulator use lifting devices with the aid of the pallet supplied with it (if contemplated).

The adhesive plate on the packaging indicates the total weight of the circulator.

Carefully follow the advice in this chapter to carry out correct electrical, hydraulic and mechanical installation. Always switch off the mains power supply before working on the electrical or mechanical part of the system. Wait for the war- ning lights on the control panel to go out before opening the ap- pliance. The capacitor of the direct current intermediate circuit remains charged with dangerously high voltage even after the mains power has been turned off.

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pliance must be earthed (IEC 536 class 1, NEC and other appli- cable standards). Ensure that the voltage and frequency on the data plate of the EVOPLUS circulator are the same as those of the power mains.

7.1 Circular Installation and Maintenance

Always install the EVOPLUS circulator with the motor shaft in a horizontal position.Install the electronic control device in a verti- cal position (see Figure 1) - The circulator may be installed in heating and conditioning systems on either the delivery pipe or the return pipe; the arrow marked on the

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- Install the circulator as far as possible above the minimum boiler level and as far as possible from bends, elbows and junction boxes. - To facilitate control and maintenance operations, install an interception valve both on the suction pipe and on the delivery pipe.

If the motor assembly has been removed from its seat, pay the greatest attention during assembly, taking care to insert the impeller completely

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has been correctly assembled, the motor assembly rests completely on the pump body. Incorrect assembly may damage the impeller, causing a typical rubbing noise when the circulator starts. The electronic control device must always remain in vertical po- sition!

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ter at 80°C. Then drain the system completely to eliminate any harmful substance that may have got into circulation. - Assemble in such a way as to avoid dripping on the motor and on the electronic control device during both installation and maintenance. - Avoid mixing additives derived from hydrocarbons and aromatic prod- ucts with the circulating water. It is recommended that the addition of antifreeze, where necessary, should not exceed 30%. - In the event of heat insulation use the special kit (if provided) and en- sure that the condensate draining holes in the motor casing are not closed or partly blocked. - 7R JXDUDQWHH PD[LPXP HI¿FLHQF\ RI WKH V\VWHP DQG ORQJ OLIH RI WKH FLUFXODWRULWLVUHFRPPHQGHGWRXVHPDJQHWLFVOXGJHUHPRYLQJ¿OWHUVWR separate and collect any impurities present in the system (particles of sand, particles of iron and sludge) Never insulate the electronic control device. - In the case of maintenance, always use a set of new gaskets.

7.2 Rotation of the Motor Heads

If the circulator is installed on pipes in a horizontal position, it will be nec- essary to rotate the motor with the respective electronic device through 90 degrees in order to maintain the grade of IP protection and to allow the user a more convenient interaction with the graphic interface (see Figure 2). Before rotating the circulator, ensure that it has been completely drained. Should it be necessary to rotate the motor heads, follow the instructions below with care to ensure correct installation:

2. 2. Rotate the motor assembly keeping it in the seat where it cou-

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3. Once the head has been rotated into the desired position, tighten

C D Figure 2: Instructions for motor head assembly

Always switch off the mains power supply before working on the electrical or mechanical part of the system. Wait for the war- ning lights on the control panel to go out before opening the ap- pliance. The capacitor of the direct current intermediate circuit remains charged with dangerously high voltage even after the mains power has been turned off. 2QO\ ¿UPO\ FDEOHG PDLQV FRQQHFWLRQV DUH DGPLVVLEOH 7KH DS- pliance must be earthed (IEC 536 class 1, NEC and other appli- cable standards). 7+(6<67(00867%(&255(&7/<$1'6$)(/<($57+(' It is recommended to install a differential switch to protect the system, which must have correct dimensions, such as: Class A with adjustable leakage current, selective, protected against sudden tripping. The automatic differential switch must be marked with the fol- lowing two symbols: - The circulator does not require any external motor protection. - Ensure that the supply voltage and frequency are the same as the val- ues indicated on the electrical data plate of the circulator.

Ensure that the connecting cable of the pressure sensor never comes in contact with the motor casing.

7.3 Non-return valve

If the system is equipped with a non-return valve, ensure that the mini- mum pressure of the circulator is always higher than the valve closing pressure.

A77(17,21$/:$<65(63(&77+(/2&$/6$)(7<5(*8/$- TIONS. Figure 3: Installation on horizontal pipes Figure 4: Electrical connections (front) Figure 5: Electrical connections (rear)ENGLISH

Reference (Figure 4 and Figure 5) Description

Pull-out terminal board for connection of the supply line: 1x220-240 V, 50/60 Hz 2 auxiliary LED 3 system live indicating LED 4 Connector for connecting twin circulators

Pull-out 13-pole terminal board for connecting the inputs and the MODBUS systems

Pull-out 6-pole terminal board for alarm signals and system status

8.1 Power supply connection

Before supplying power to the circulator, ensure that the cover of the EVOPLUS control panel is perfectly closed Table 2: Electrical connections

8.2 Electrical connections of Inputs, Outputs and MODBUS

EVOPLUS circulators are equipped with digital and analogue inputs and digital outputs so as to be able to realise interface solutions with more complex installations. )RUWKHLQVWDOOHULWZLOOEHVXI¿FLHQWWRZLUHXSWKHGHVLUHGLQSXWDQGRXWSXW FRQWDFWVDQGWRFRQ¿JXUHWKHLUIXQFWLRQVDVGHVLUHGVHHSDUSDU par. 8.2.2 par. 8.2.3 and par. 8.2.4)

8.2.1 Digital Inputs

With reference to Figure 7 the digital inputs available are: Input Terminal no. Type of contact Associated function IN1

Clean contact EXT: If is activated from the control panel (see par. 12 Page 11.0 of the EVOPLUS menu) it will be possible to command the switching on and off of the pump in remote mode.

Clean contact Economy: If is activated from the control panel (see par. 12 Page 5.0 of the EVOPLUS menu) it will be possible to active the set-point re- duction function in remote mode.

Table 3: Digital inputs IN1 and IN2 Figure 6: Pull-out terminal board for supply Figure 7: Pull-out 13-pole terminal board: digital inputs and MODBUSENGLISH

Further information and details on the MODBUS and LON bus interface are available at the following link: http://www.dabpumps.com/evoplus

8.2.3 Analogue Input and PWM

Figure 8 shows the wiring diagram of the external signals 0-10V and

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minals on the terminal board, so they are mutually exclusive. If you want to use an analogue control signal, you will have to set the type of signal from the menu (see par. 12 Page 7.0). Further information and details on the MODBUS and LON bus interface are available for download at the following link: http://www.dabpumps.com/evoplus If the EXT and Economy functions have been activated from the control panel, the system will behave as follows: IN1 IN2 System Status Open Open Pump stopped Open Closed Pump stopped Closed Open Pump running with set-point set by the user Closed Closed Pump running with reduced set-point

8.2.2 MODBUS and LON Bus

EVOPLUS circulators provide serial communication through an input

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cations. With MODBUS it is possible to set the circulator operating parameters in remote mode such as, for example, the desired differential pressure, the

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circulator can provide important information on the system status. For the electrical connections refer to Figure 6 and to Table 4: MODBUS Terminals Terminal no. Description A 2 Terminal not inverted (+) B 1 Terminal inverted (-) Y3 GND

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the advanced menu see Par.12). EVOPLUS circulators also have the possibility of communicating on LON bus through external interface devices. Table 4: RS_485 MODBUS terminals Figure 8: Pull-out 13-pole terminal board: 0-10V inputs and PWMENGLISH

With reference to Figure 9 the digital outputs available are: Output Terminal no. Type of contact Associated function OUT1 1NC Presence/Absence of alarms in the system 2COM 3NO OUT2 4NC Pump running/Pump stopped5COM 6NO The outputs OUT1 and OUT2 are available on the pull-out 6-pole terminal

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Normally Closed, COM = Common, NO = Normally Open). The electrical characteristics of the contacts are shown in Table 6. In the example shown in Figure 8 the light L1 is lit when there is an alarm in the system and it goes off when no kind of malfunction is found, whereas the light L2 is lit when the pump is running and goes off when Table 5: Outputs OUT1 and OUT2 the pump is stopped. Characteristics of the output contacts Max. bearable voltage [V] 250 Max. bearable current [A] 5 If resistive load 2,5 If inductive load Max. accepted cable section [mm²] 2,5

8.3 Connections for Twin Systems

All the starting operations must be performed with the cover of the EVOPLUS control panel closed. Start the system only when all the electrical and hydraulic con- nections have been completed. Avoid running the circulator when there is no water in the sy- stem. Table 6: Characteristics of the output contacts Figure 9: Pull-out 6-pole terminal board: example of output connectionENGLISH

in the system may also be in the form of steam. DANGER OF SCALDING! It is dangerous to touch the circulator. DANGER OF SCALDING!

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system with water and if necessary with glycol (for the maximum glycol percentage see par. 3) and feed the system. Once the system has been started it is possible to modify the operating modes to adapt better to the plant requirements (see par.12).

10.1 Regulating Modes

EVOPLUS circulators allow the following regulating modes depending on plant requirements: - 3URSRUWLRQDOGLIIHUHQWLDOSUHVVXUHUHJXODWLRQGHSHQGLQJRQWKHÀRZ present in the plant. - Proportional differential pressure regulation with set-point depend- ing on the external signal 0-10V or PWM. - 3URSRUWLRQDOGLIIHUHQWLDOSUHVVXUHUHJXODWLRQGHSHQGLQJRQWKHÀRZ present in the plant and on the liquid temperature. - Constant differential pressure regulation. - Constant differential pressure regulation with set-point depending on the external signal 0-10V or PWM. - Constant differential pressure regulation with variable set-point de- pending on the liquid temperature. - Regulation with constant curve. - Regulation with constant curve with rotation speed depending on the external signal 0-10V or PWM. The regulating mode may be set through the EVOPLUS control panel (see par. 12 Page 2.0).

10.1.1 Regulation with Proportional Differential Pressure

In this regulating mode the differential pressure is redu- ced or increased as the demand for water decreases or increases. The Hs set point may be set from the display or by an external signal 0-10V or PWM. Regulation indicated for: - Heating and conditioning plants with high load losses - 7ZRSLSHV\VWHPVZLWKWKHUPRVWDWLFYDOYHVDQGKHDGP - Plants with secondary differential pressure regulator - Primary circuits with high load losses - Domestic water recirculating systems with thermostatic valves on the rising columns

10.1.2 Regulation with Constant Differential Pressure

In this regulating mode the differential pressure is kept constant, irrespective of the demand for water, The Hs set point may be set from the display or by an external signal 0-10V or PWM. Regulation indicated for: - Heating and conditioning plants with low load losses - 7ZRSLSHV\VWHPVZLWKWKHUPRVWDWLFYDOYHVDQGKHDGP - Single-pipe systems with thermostatic valves - Plants with natural circulation - Primary circuits with low load losses - Domestic water recirculating systems with thermostatic valves on the rising columns.

10.1.3 Regulation with constant curve

In this regulating mode the circulator works on cha- racteristic curves at a constant speed. The operating curve is selected by setting the rotation speed throu- gh a percentage factor. The value 100% indicates the maximum limit curve. The actual rotation speed may depend on the power and differential pressure limits of your circulator model.

The rotation speed may be set from the display or by an external signal 0-10V or PWM. Regulation indicated for heating and conditioning plants with constant ÀRZ

10.1.4 Regulation with Constant and Proportional Differential Pres-

sure depending on the Water Temperature In this regulating mode the regulating set point Hs is reduced or increased accor- ding to the water temperature. THs may be set from 0ºC to 100 ºC in order to al- low operation in both heating and condi- tioning plants. Regulation indicated for: - 3ODQWVZLWKYDULDEOHÀRZWZRSLSHKH- ating plants), where a further reduction of the circulator performance is ensured depending on the lowering of the tem- perature of the circulating liquid, when the demand for heating is lower.

the circulator performance can be regu- lated only by activating the temperature LQÀXHQFHIXQFWLRQ

control panel on the cover of the electronic control device. On the panel there are: a graphic display, 4 navigation keys and 3 LED warning lights (see Figure 10).

Using the graphic display it will be possible to navigate in an easy and intuitive menu which will enable you to check and modify the system op- erating mode, the enabling of the inputs and the working set-point. It will also be possible to view the system status and the log of any alarms memorised by the system.

11.2 Navigation Buttons

4 buttons are provided for navigating in the menu: 3 buttons under the display and 1 at the side. The buttons under the display are called active buttons and the one at the side is called hidden button. Each page of the menu is made in such a way as to indicate the function associated with the 3 active buttons (the ones under the display).

<HOORZOLJKW: System live signal. If lit, it means that the system is live. Never remove the cover if the yellow light is lit. Red light: Warning of an alarm/malfunction present in the system. If the light is blinking it is a non-blocking alarm and the pump can still be

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be controlled. Green light: Pump ON/OFF signal. if lit, the pump is running. If off, the pump is stopped. Figure 10: Control panelENGLISH

EVOPLUS circulators offer 2 menus: user menu and advanced menu. The user menu is accessible from the Home Page by pressing and re- leasing the central “Menu” button. The user menu is accessible from the Home Page by holding down the central “Menu” button for 5 seconds Below are shown the user menu pages with which it is possible to check the system status and modify its settings. Instead on the advanced menuWKHUHDUHWKHFRQ¿JXUDWLRQSDUDPHWHUV for communication with MODBUS systems (for further details visit the link: http://www.dabpump.com/evoplus). To leave the advanced menu you must scroll through all the parameters using the central button. If the menu pages show a key at bottom left it means that it is not possible to change the settings. To unblock the menus go to the Home Page and press the hidden button and the button under the key at the same time until the key disappears. If no button is pressed for 60 minutes, the settings are automatically blocked and the display switches off. When any button is pressed the display lights up again and the “Home Page” appears. To navigate in the menus, press the central button. To return to the previous page, hold down the hidden button, then press and release the central button. To modify the settings use the left and right buttons. 7RFRQ¿UPWKHFKDQJHRIDVHWWLQJKROGGRZQWKHcentral button “OK” IRUVHFRQGV&RQ¿UPDWLRQZLOOEHLQGLFDWHGE\WKHIROORZLQJLFRQ:

Home Page The main settings of the system are graphically summed up on the Home Page. The icon at top left indicates the type of regulation selected. The icon at centre top indicates the operating mode selected (auto or economy). The icon at top right indicates the presence of a single or twin inverter. The rotation of the icon or indicates which circulation pump is operating. At the centre of the Home Page is a read-only parameter which can be chosen from a small set of parameters on Page 9.0 of the menu. From the Home Page it is possible to access the page for regu- lating the contrast of the display: hold down the hidden button, then press and release the right button. EVOPLUS circulators offer 2 menus: user menu and advanced menu. The user menu is accessible from the Home Page by pressing and releasing the central “Menu” button. The user menu is accessible from the Home Page by holding down the central “Menu” button for 5 seconds. Page 1.0 The factory settings are set from Page 1.0 by holding down the left and right buttons at the same time for 3 seconds.

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pearance of the symbol next to the word “Default”.

Page 2.0 The regulating mode is set from Page 2.0. You can choose between the following modes: 1 = Proportional differential pressure regulation. 2 = Proportional differential pressure regulation with set- point set by external signal (0-10V or PWM). 3 = Proportional differential pressure regulation with set- point depending on temperature. 4 = Regulation with constant differential pressure. 5 = Constant differential pressure regulation with set-point set by external signal (0-10V or PWM). 6 = Constant differential pressure regulation with set-point depending on temperature. 7 = Regulation with constant curve with rotation speed set from the display. 8 = Regulation with constant curve with rotation speed set by an external signal (0-10V or PWM). Page 2.0 displays 3 icons which represent: - central icon = setting currently selected - right icon = next setting - left icon = previous setting Page 3.0

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Depending on the type of regulation chosen on the previous page, the set-point to be set will be a head or, in the case of a Constant Curve, a percentage of the rotation speed. Page 4.0 On Page 4.0 it is possible to modify the parameter THs with which to make the curve depending on temperature (see Par.

This page will be displayed only for the regulating modes de- SHQGLQJRQÀXLGWHPSHUDWXUH

Page 5.0 Page 5.0 allows you to set the “auto” or “economy” operating mode. “Auto” mode disables the reading of the status of digital input IN2 and in fact the system always activates the set-point set by the user. “Economy” mode enables the reading of the status of digital input IN2. When input IN2 is energised the system activates a percentage reduction of the set-point set by the user (Page 6.0 of the EVOPLUS menu). For the connection of the inputs see par. 8.2.1 Page 6.0 Page 6.0 is displayed if “economy” mode has been chosen on page 5.0 and allows setting of the percentage value of the set-point. This reduction will be carried out if digital input IN2 is ener- gised. Page 7.0 Page 7.0 is displayed if an operating mode has been chosen with set-point regulated by an external signal. This page allows you to choose the type of control signal: ana- logue 0-10V (positive or negative increase) or PWM (positive or negative increase). Page 8.0 If a twin system is used (see Par. 8.3) on page 8.0 you can set one of the 3 possible twin operation modes:Alternate every 24h: The 2 circulators alternate in regula-tion every 24 operating hours. If one of the 2 malfunctions, the other takes over regulation.Simultaneous: The 2 circulators work at the same time DQGDWWKHVDPHVSHHG7KLVPRGHLVXVHIXOZKHQDÀRZrate is required that cannot be provided by a single pump.Main/Reserve: Regulation is always performed by the same circulator (Main), the other (Reserve) takes over only if there is a malfunction of the Main one.If the twin communication cable is disconnected the systems auto-PDWLFDOO\¿JXUHDV6LQJOHZRUNLQJFRPSOHWHO\LQGHSHQGHQWRIHDFKother.

Page 9.0 On page 9.0 it is possible to choose the parameter to be displa- yed on the Home Page: H: Measured head expressed in metres

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S: Rotation speed expressed in revs per minute (rpm) E: Head requested by external signal 0-10V or PWM, if active P: Power distributed expressed in kW h: Operating hours

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ard T1: Liquid temperature measured with an external sensor Page 10.0 On page 10.0 you can choose the language in which to display the messages. Page 11.0 On page 11.0 you can display the alarms log by pressing the right button.

alarms log (up to a maximum of 15 alarms). For each recorded alarm a page composed of 3 parts is displayed: an alphanume-

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tes the fault in graphic mode, and a message in the language selected on Page 10.0, giving a brief description of the fault. By pressing the right button you can scroll through all the pa- ges of the log. 2 questions appear at the end of the log: “Reset Alarms?” Pressing OK (left button) resets any alarms still present in the system. “Delete Alarms Log?” Pressing OK (left button) deletes the alarms memorised in the log. Pagina 12.0 On page 12.0 you can set the system status in ON, OFF or controlled by a remote signal EXT (digital input IN1). If ON is selected the pump is always on. If OFF is selected the pump is always off. If EXT is selected, reading of the status of digital input IN1 is enabled. When input IN1 is energised the system goes ON and the pump is started (on the Home Page the messages “EXT” and “ON” appear alternately at bottom right); when input IN1 is not energised the system goes OFF and the pump goes off (on the Home Page the messages “EXT” and “OFF” appear alternately at bottom right). For the connection of the inputs see par. 8.2.1 )$&725<6(77,1*6 Parameter Value Regulating mode = Proportional differential pressure regulation THs 50 ºC Operating mode auto

Tabella 8: Elenco allarmi15. DISPOSAL This product or any part of it must be disposed of correctly: - Use public or private local systems for waste collection. - If that is not possible, contact Dab Pumps or the nearest authorised service workshop.INFORMATIONFrequently asked questions (faq) on the ecodesign directive 2009/125/ec establishing a framework for the setting of ecodesign requirements for energy-related products and its implementing regulations: http://ec.europa.eu/enterprise/policies/sustainable-business/documents/HFRGHVLJQJXLGDQFH¿OHVBIDTBHQSGIGuidelines accompanying commission regulations implementing the ecodesign directive: KWWSHFHXURSDHXHQHUJ\HI¿FLHQF\HFRGHVLJQOHJLVODWLRQBHQKWPVHH³FLUFXODWRUV´16. ERROR CONDITION AND RESET Display indica- tion Description Reset e0 – e16 Internal error - Switch off system power. - Wait for the warning lights on the control panel to go off, then power the system again. - If the error persists, change the circulator. e37 Low mains voltage (LP) - Switch off system power. - Wait for the warning lights on the control panel to go off, then power the system again. - Check that the mains voltage is correct, if ne- cessary reset it at the plate values e38 High mains voltage (HP) - Switch off system power. - Wait for the warning lights on the control panel to go off, then power the system again. - Check that the mains voltage is correct, if ne- cessary reset it at the plate values.

e32-e35Critical overhea-ting ofelectronic parts - Switch off system power. - Wait for the warning lights on the control panel to go off. - Check that the system ventilation ducts are not blocked and that the environment tempe-rature of the premises is correct.e43-e45; e54 Sensor signal absent - Check sensor connection. - If the sensor is faulty, replace it.e39-e40Protection against overcurrent - Check that the circulator turns freely. - Check that any antifreeze added does not exceed the maximum percentage of 30%.e21-e30Voltage Error - Switch off system power. - Wait for the warning lights on the control panel to go off, then power the system again. - Check that the mains voltage is correct, if ne-cessary reset it at the plate values. e31 Twin com-municationabsent - Check that the twin communication cable is intact. - Check that both circulators are powered. e42 Dry opera- tion - Put the system under pressure. e56 Motor excess tem-perature - Switch off system power. - Wait for the motor to cool down. - Power the system again.e57 ; e58f < 100 Hz ; f > 5 kHzCheck that the PWM external signal is operating DQGFRQQHFWHGDVVSHFL¿HG

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10.0 41.71 D 100/340.65 M 10.0 75.08