Digital controller for ventilated refrigerating units, with rtc, haccp and energy saving functions (6 pages)
Summary of Contents for Evco EV3 MVC
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 EV3 MVC & EVD MVC Controllers for mechanical ventilation units for air renewal and heat recovery Application manual ver. 2.2c November 2019 | ENGLISH Code 144EV3MVI224...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Important Read this manual carefully before installation and before using the devices and take all the prescribed precautions. Keep this manual with the devices for future consultation.
EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 INTRODUCTION EV3 MVC and EVD MVC are controllers for mechanical ventilation units for air renewal and handling, capable of complying with the most rigorous standards for air-quality and building energy certification.
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Models available EV3 MVC EVD MVC EV3K11 EVJ LCD Digital outputs (triac; A res. @ 250 VAC) triac Digital outputs (open collector) open collector Communications ports INTRABUS •...
The following paragraphs contain a description of the various devices that can used for the management of MVC units. Description of EV3 MVC The diagram below shows the layout of the EV3 MVC controller for panel installation in standard 74x32 mm format. The table below describes each part of the EV3 MVC.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Description of EVD MVC The diagram below shows the layout of the EVD MVC for installation in an electrical panel on a DIN rail in standard 4 DIN-module format.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Description of EV3K11 The diagram below shows the layout of the EV3K11 remote keypad for panel installation in standard 74x32 mm format. The table below describes each part of the EV3K11.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Description of EVJ LCD The diagram below shows the layout of the EVJ LCD remote keypad for wall installation in 111.4x76.4 mm format. The table below describes each part of the EVJ LCD.
To be installed on a panel with the snap-in brackets provided. The thickness of the panel on which EV3 MVC is to be installed must be between 0.8 and 2.0 mm (0.031 and 0.078 in). Measurements and installation of EVD MVC The picture below shows the measurements of EVD MVC (4 DIN modules);...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 The pictures below show how to install the EVD MVC. To remove the EVD MVC, first remove any plug-in screw terminal blocks fitted in the lower part, then, using a screwdriver, loosen the DIN rail clip, as shown in the pictures below.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Measurements and installation of EVJ LCD 3.4.1 Models for wall mounting The pictures below show the measurements of EVJ LCD; measurements are expressed in mm (inches).
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Installation precautions Ensure that the working conditions for the devices (operating temperatures, humidity, etc.) are within the set limits. See the section TECHNICAL SPECIFICATIONS. Do not install the devices close to heat sources (heaters, hot air ducts, etc.), equipment with a strong magnetic field (large diffusers, etc.), in places subject to direct sunlight, rain, damp, excessive dust, mechanical vibrations or shocks.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 USER INTERFACE Key functions The table below shows the functions of the keys. Name Function - On the home page, a long press on the key ends the holiday if the...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2 | Application manual ver. 2.2c | Code 1443DMVCI224 Display 4.2.1 HOME PAGE If the machine is switched off, "OFF" appears on the upper display, while the current time is shown on the lower display, pro If the machine is switched off, "OFF"...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2 | Application manual ver. 2.2c | Code 1443DMVCI224 EVJ LCD EV3 MVC, EVD MVC EV3 MVC, EVD MVC Description and EV3K11 heating and cooling. Depending on the value of the C21 parameter, the following heating and cooling.
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2 | Application manual ver. 2.2c | Code 1443DMVCI224 Unit of measurement of the value shown on the display when the variable displayed is Unit of measurement of the value shown on the display when the variable displayed is a pressure in Bar.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 On/stand-by: ON if the controller is switched off (stand-by) OFF if the controller is switched on RUN (not available on EVD MVC): always on Days of the week (screen printed on the front of the EVJ LCD):...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Example 1 of EV3K11 electrical connection Example 1 of electrical connection: EV3K11 is powered by a safety transformer. N.B.: Do not supply another device with the same transformer The maximum permitted length for connection cables of the INTRABUS port is 30 m (98.4 ft).
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Example of EVJ LCD electrical connection 5.4.1 Models for wall mounting Example 1 of electrical connection: EVJ LCD is powered by a safety transformer. N.B.: Do not supply another device with the same transformer The maximum permitted length for connection cables of the INTRABUS port is 30 m (98.4 ft).
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Example 2 of electrical connection: EVJ LCD has a RS-485 serial port (purchasing code EVJD900N2VWTX) with INTRABUS communication protocol and is powered by a safety transformer.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 5.4.2 Models for wall mounting with back-slot for in-wall box N.B.: The maximum permitted length for connection cables of the INTRABUS port is 30 m (98.4 ft).
Description of connectors 5.5.1 Description of connectors for EV3 MVC The picture below shows the layout of the EV3 MVC connectors. The tables below describe the EV3 MVC connectors. The tables give the maximum provided. Connector 1 Part Description relay digital outputs DO1... DO4 (max. 10 A): common...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Reference (GND) EV3 MVC power supply (12 VAC) EV3 MVC power supply (12 VAC) Connector 3 Part Description Positive signal RS-485 MODBUS port Negative signal RS-485 MODBUS port...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 5.5.4 Description of connectors for EVJ LCD 5.5.4.1 Models for wall mounting The picture below shows the layout of the EVJ LCD connectors. The table below describes the EVJ LCD connectors. The table gives the maximum provided.
Termination resistor for the RS-485 MODBUS line To terminate the RS-485 MODBUS line of the EV3 MVC, place micro-switch 1 in position ON. Do not touch micro-switch 2. To terminate the RS-485 line of the EVD MVC, place micro-switch 1 in position ON.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Precautions for electrical connection Do not use electric or pneumatic screwdrivers on the terminal blocks of the devices. If the devices have been moved from a cold to a warm place, the humidity may cause condensation to form inside. Wait about an hour before switching on the power.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Menu 6.1.1 Access levels There are three access levels for navigating within the menus, two of which require a password: U User: always visible S Servicer: visible if the servicer password or the manufacturer password has been entered M Manufacturer: visible if the manufacturer password has been entered.
EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Quick menus If the EVJ LCD display is installed, all the quick menus are accessible; from the EV3 MVC, EVD MVC or EV3K11 displays only some of them will be accessible 21,0 °C-°F...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 If a time band is disabled, the menu jumps directly to the next day type. Hence it is important to check that the bands following the one that you wish to disable are also disabled.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 SELECTING THE OPERATING MODES The controller always makes it possible to manage heating and cooling and use either “manual” operation or “time bands” to meet the user’s needs in the best way.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 - Economy (ECO) for this level the temperature setpoints are taken from the comfort mode settings adding an offset; the fan speed and damper opening setpoints instead are controlled by the following specific parameters:...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 CONFIGURING A DEVICE The following paragraphs list all the possible configurations of the EV3 and EVD MVC devices. Parameters For each parameter a visibility level is assigned that can be modified (only from serial port) with 4 possible values (the visibility value...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Default Default Label Description value visibility Band type for Friday Band type for Saturday Band type for Sunday Holiday end year Holiday end month Holiday end day...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Default Default Label Description value visibility Second display 0: Time 1: Humidity 2: Temperature setpoint 3: External temperature 4: Fan speed 5: Fan pressure capacity/differential...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Default Default Label Description value visibility Humidity regulation band Dehumidifying in cooling mode with priority over heat regulation 0: OFF 1: ON °C-°F Minimum humidifier supply temperature value...
The value 0 indicates that no function is associated with the input. All 10 inputs can be used as digital inputs, but only some (IN1, IN2, IN3, IN4, IN5, IN6 and IN7 on EV3 MVC; IN1, IN2, IN3, IN4, IN5, IN9 and IN10 on EVD MVC) can be configured as analogue inputs.
0-5 V Important: only for EV3 MVC, if either input IN1 or IN2 has been set to powered up (0-5 V or 0-10 V), the other must be also. If this does not happen the reading of the input set to powered up will be affected by the offset.
Mixing chamber damper Configuring triac and open collector outputs Model EV3 MVC has 2 triac outputs (with an optional board), while model EVD MVC has one (1) open collector output, which can be configured with parameters I36 and I37. If it is decided to disable the triac/OC outputs they can be used as DO digital outputs.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Configuring digital outputs The parameters between I26 and I33 configure the function associated with the digital outputs. Both analogue and triac outputs can be configured as digital outputs if disabled as analogue outputs as previously explained.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 FUNCTIONING OF THE CONTROLLER 10.1 Regulation in the incremental neutral zone The working parameters for regulation in the neutral zone consist of a setpoint, a regulation band, a reaction time and an incremental step.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 10.3 Regulating the ventilation The controller manages two fans: the supply fan and the return fan. The regulation of both fans is driven by an analogue output that can be single (the same speed for both fans) or independent.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 recovery heat exchanger/bypass damper Compressor In order to use this function, the (if the recovery heat exchanger is thermodynamic) relay must be configured. Cross-flow recovery heat exchanger is a passive system, meaning that when activated the corresponding relay is in rest position.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2 | Application manual ver. 2.2c | Code 1443DMVCI224 - If none of the above situations apply, the damper opening is determined by the reg If none of the above situations apply, the damper opening is determined by the regulation setpoint (P14…P17) associated with the ulation setpoint (P14…P17) associated with the...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 10.6.2 Winter pre-heating (Hot Start) This function prevents the entry of excessively cold air into the room. On start-up, before the fans are switched on the hot water coil is fully activated for a period calculated on the basis of the external temperature, keeping the external air damper closed and the mixing chamber damper fully recirculating.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2 | Application manual ver. 2.2c | Code 1443DMVCI224 During the active defrost phases the refrigeration circuit function is inve During the active defrost phases the refrigeration circuit function is inverted. To retain the heat localised on the coil that needs rted.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 On the basis of the parameter C58 (capacity coefficient) value the regulation will be by pressure (C58 = 0) or capacity (C58 > 0). In...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 If parameter C48 is set to 0 temperature regulation takes priority over dehumidifying; in this situation if the regulation temperature falls below the setpoint - band/2 the dehumidifier request is inhibited. This parameter can be used to limit excessive cooling caused by dehumidification, for example if a post-heating coil is not present.
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Label Visibility default description Alarm in progress 0: OFF 1: ON Operating mode 0: Disabled 1: OFF 2: Comfort 3: Economy 4: Night 5: Holiday:...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Label Visibility default description Temperature regulation mode 0: Cold 1: Hot 2: Auto+Cold 3: Auto+Hot Heating/Cooling mode setting 0: Cold 1: Hot 2: Auto °C-°F Changeover probe value °C-°F...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Label Visibility default description Electric coil operating mode 0: OFF 1: Step 1 2: Step 2 Electric coil percentage SCmp Regulating the compressor Steps in operation...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 SIGNALS AND ALARMS The alarm signals can be of the following types. - Automatic: the alarm is reset automatically once the cause of the alarm has disappeared...
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Code Label on display Description Low pressure alarm The alarm is activated if the input configured as a low pressure input is active. It is deactivated if the input is inactive.
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Code Label on display Description Clock alarm The alarm signal is activated when the clock shows an invalid date or is damaged and time band regulation is activated (t01).
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EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 Code Label on display Description AL33 EA01 Probe alarms (on devices from EA1 to EA07, T&H probes of the EA08 and EA09 displays, AL34 EA02 respectively).
Makes it possible to convert the INTRABUS signal into an RS-485 MODBUS signal (with INTRABUS communication protocol), to allow connecting cables device-user interface up to 1,000 m. EVIF22ISX can also work as programming key, to allow EV3 MVC and EVD MVC configuration upload and download. USE AS PROGRAMMING KEY...
LED switches off; vice versa if the download fails, the green LED switches off and the red LED switches on firmly (repeat the upload). For further information see the relative instruction sheet. 13.2 RS-485/USB EVIF20SUXI serial interface This interface makes it possible to connect EV3 MVC and EVD MVC to the Parameters Manager set-up software system. page 65 of 74...
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 13.3 0025100010 drip protector This drip protector shields EV3 MVC and EV3K11 from damp. 13.4 CJAV connection kit These kits make it possible to cable EV3 MVC and EVD MVC.
EVCO S.p.A. EV3 MVC & EVD MVC | Application manual ver. 2.2c | Code 1443DMVCI224 TECHNICAL SPECIFICATIONS EV3 MVC EVD MVC Purpose control Function controller device EV3K11 EVJ LCD EV3 MVC EVD MVC Construction of the control Built-in electronic device...
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Use cables of an adequate section for the current running through them. For EV3 MVC cabling we recommend using the CJAV39 connection kit (to be ordered separately). For EVD MVC cabling instead, we recommend using the CJAV38 connection kit (to be ordered separately).
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EVCO. The customer (manufacturer, installer or end-user) assumes all responsibility for the configuration of the device. EVCO accepts no liability for any possible errors in this document and reserves the right to make any changes, at any time without prejudice to the essential functional and safety features of the equipment.
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