EV40 - Solar panel Fantini Cosmi - Free user manual and instructions

Product Type	Regulation control unit for thermal solar panel systems
Brand	Fantini Cosmi
Model	EV40
Power Supply	230 Vac, 50 Hz
Consumption	5 VA
Protection Degree	IP40 (back panel)
Operating Temperature	0 °C to +50 °C
Analog Inputs	3 NTC 1k-200°C (EC21) for collector, boiler, integration probes
Optoisolated Inputs	2
Output Relays	3: solar pump relay, integration pump/valve relay, programmable relay
Relay Contact Rating	5(3) A, 230 Vac
Serial Port	RS232 for remote control via GSM modem (EM70)
Display	Backlighting LCD with graphic visualization
Buttons	6 for menu navigation and setting
LEDs	3 for relay status indication (B, C, D)
Mounting	DIN-rail (6 modules)
Dimensions (mm)	105 x 90 x 58 (approx. from diagram: height 105, width 90, depth 58 including terminals)
Weight	Approx. 300 g (estimate based on size)
Clock Reserve	5 years
Probe Measurement Range	0 °C to +150 °C (±1 °C)
System Types	8 programmable types: basic, with heat integration, lower probe, 2 collectors, heat exchanger, 2 priority tanks (1 pump+valve or 2 pumps), drainback
Functions	Antifreeze, pump antiblocking, energy calculation, summer time, probe correction, 5 customizable limit temperatures, programmable relay (cooling, thermostat, timer, alarm)
Accessories	EM70S GSM modem, 1590029 battery 12V-1.2Ah, N70A power supply, EC21 high-temp probe
Standards	EN60730-1, CE, EAC

Frequently Asked Questions - EV40 Fantini Cosmi

What is the Fantini Cosmi EV40 used for?

The EV40 is a differential control unit for thermal solar panel systems with forced circulation. It regulates both heating and cooling, and supports up to 8 system types.

How many system types does the EV40 support?

It supports 8 system types, including basic, with heat integration, lower probe, two collectors, heat exchanger, two priority tanks (one pump+valve or two pumps), and drainback.

What are the three output relays used for?

Relay C controls the solar pump, relay B controls the integration pump or deviation valve, and relay D is programmable for functions like cooling, thermostat, timer, or alarm.

Can the EV40 be remotely controlled?

Yes, via the optional EM70S GSM modem connected to the RS232 port. It allows monitoring and parameter changes via SMS.

What is the antifreeze function?

When the collector liquid temperature approaches a set value (from -9°C to +10°C), the pump circulates to increase temperature and prevent freezing.

How do I connect probes to the EV40?

Three NTC 1k-200°C probes (EC21) connect to the analog inputs: probe 1 for collector, probe 2 for boiler/accumulator, probe 3 for integration or other functions. Use the wiring diagram.

What is the power supply requirement?

The device requires 230 Vac, 50 Hz and consumes 5 VA.

Is the EV40 suitable for pool heating?

Yes, it supports a system type with heat exchanger (e.g., for pool) and can manage a boiler or accumulator accordingly.

How do I install the EV40?

Mount the unit on a DIN-rail (6 modules) inside an enclosure for protection (IP40). Use the removable terminals for easy wiring.

What does the programmable relay do?

It can be set as a thermostat (0-144°C), timer (on/off schedule), cooling command for overheating, or alarm triggered by optoisolated inputs.

USER MANUAL EV40 Fantini Cosmi

Regulation control unit for thermal solar panel systems and solar cooling

EV40 differential control unit is suitable for the regulation and control of thermal solar panel systems, both of the vacuum tubes and flat plate types, with fluid forced circulation. It is able to control both heating and cooling of the environment through the management of the systems with solar cooling. Eight system types are available, according to the specific required application.

Power supply
Contacts rating

Operating ambient temperature

Consumption Protection degree

EV40 230V 50Hz 5(3)A 0 ÷ 50 °C 5 VA IP40 (back panel)

ELECTRICAL FEATURES

Power supply: 230 Vac.

Consumption: 5VA.

Analog inputs: collector probe, boiler probe and integration probe NTC 1k-200°C (EC21).

2 optoisolated inputs.

Output relays:

■ 1 relay for collector circulation pump;
■ 1 relay for integration pump or for deviation valve;
■ 1 relay with programmable function.

Contacts rating: 5(3)A 230Vac.

Serial port RS232: for remote control with GSM modem (by means of SMS).

GENERAL ELECTRICAL WIRING DIAGRAM

ELECTRICAL DIAGRAM FOR CONNECTION TO THE PUMPS

The indication LED will turn on when the control unit energizes the corresponding relay:
B = Integration Relay (or secondary relay)
C = Solar Pump Relay (or primary relay)
D = Safety Relay (or auxiliary relay)

OPERATION

The EV40 differential control unit is suitable for the regulation and control of thermal solar panel systems, both of the vacuum tubes and flat plate types, with fluid forced circulation.

It is able to control both heating and cooling of the environment through the management of the systems with solar cooling. Eight system types are available, according to the specific required application.

The control unit is fitted with three analogue inputs for temperatures reading (from 0 to 150°C), and with two relays operating the solar pump. If required, it can be fitted with another electromechanical actuator which will be different according to the type of selected system.

A third relay can be programmed to cover different auxiliary functions, for example, the integration of the boiler electrical resistance.

Furthermore, EV40 control unit can be linked to an EM70 modem in order to remotely program and manage the system using SMS messages, or just to know its current status.

8 SYSTEM TYPES SELECTED BY MEANS OF THE GRAPHICAL MENU:

basic system;
■ system with heat integration;
■ system with lower probe;
■ system with 2 solar collectors;
■ system with heat exchanger (e.g., for pool);
■ system with 2 priority tanks: 1 pump and 1 valve;
■ system with 2 priority tanks: 2 pumps;
- drainback system.

EXAMPLE OF BASIC SYSTEM

graph TD
    A["Solar collector"] --> B["T1"]
    B --> C["EV40"]
    C --> D["Boiler"]
    D --> E["Cold water inlet"]
    D --> F["Accumulator"]
    F --> G["T2"]
    G --> H["Sanitary hot water"]
    H --> I["Hot water"]
    I --> D
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333
    style F fill:#ffc,stroke:#333
    style G fill:#cfc,stroke:#333
    style H fill:#fcc,stroke:#333
    style I fill:#ffc,stroke:#333

This is the forced circulation system as simple as possible: the solar pump (C) is operated by the control unit when the temperature difference between the solar collector (T1) and the accumulator, also called boiler, (T2) reaches the value specified in the Parameter called T (see next section for Parameter description) and it turns off when this difference drops to Toff Parameter level. In this simple type of system, probe 3 is not used for regulation, and therefore it may be used, for instance like probe for the Thermostat Function of Relay D.

PROGRAMMABLE RELAY HAS THE FOLLOWING FUNCTIONS:

■ solar fluid cooling command (in case of overheating);
■ thermostat with Tset programmable from 0 to 144°C, used also for integration of electrical resistance or boiler;
■ timer: the relay turns on and off at the prescribed times;
- "alarm" function: the relay turns on when only one, either or both optoisolated inputs are closed.

REMOTE CONTROL

If the system is connected to a Fantini Cosmi EM70S modem for remote control, is possible to receive an SMS to a specified mobile phone number in order to change the status of the programmable relay.

By setting the function of this relay is possible to realize, for example, a simple anti-intrusion system (alarm function) or an irrigation control (timer function), or to control the temperature of an environment (thermostat function), etc.

Possibility to monitor the entire system and change all the settings via SMS (with EM70S modem).

Possibility to receive SMS messages to any status variations of the programmable relay (with EM70S modem).

FUNCTIONS

Possibility to completely turn off the system (OFF mode), keeping it always switched on (ON mode) or to program the time and days of startup (AUTO mode).

ANTIFREEZE FUNCTION

When the liquid temperature in the collector approaches to a certain value (from -9 to +10 °C), the circuit starts to increase the temperature.

FUNCTION COLLECTOR PROBE ON PIPE

In certain system types with the collector probe fitted downstream on the pipe, in a distant area from the solar collector.

PUMP ANTIBLOCKING FUNCTION.

POWER AND ENERGY CALCULATION IN REAL TIME.

Counts total operation hours of the system.

SUMMER TIME

Automatic or manual application and calculation of the summer time.

TEMPERATURE CALCULATION

Calculation of the solar fluid freezing temperature according to the percentage of antifreezing agent in the mixture.

PROBES AUTOMATIC CORRECTION

Possibility to automatically correct probes imprecision.

5 CUSTOMIZABLE LIMIT TEMPERATURES

5 "limit" temperatures, customizable, for the system correct management and protection of its hydraulic and electromechanical components.

STANDARDS AND HOMOLOGATIONS

In conformity with EN60730-1 standards

CE EAC

INSTALLATION

DIN-rail mounting (6 modules).

To ensure an adequate protection install the device on the DIN-rail within a framework.

The removable terminals simplify the wiring and a possible replacement.

FEATURES

Backlighting LCD display with graphic visualization of the system and its data.

6 buttons for selection.

3 LED for relays status indication.

DIN Container: 6 modules.

Disconnection type: 1B (micro-disconnection).

Pulse voltage: 4000V.

Software class: A.

Clock charge reserve: 5 years.

Probes measurement range: 0 ÷ 150°C (+/-1°C).

ACCESSORIES

EM70S

GSM-modem with power supply unit and antenna.

1590029

Rechargeable battery 12V-1.2Ah.

N70A

Power supply unit and battery charger.

EC21

Probe for high temperatures

EXAMPLE OF BASIC SYSTEM WITH POOL

graph TD
    A["Solar collector"] --> B["T1"]
    B --> C["Measurement device"]
    C --> D["T2"]
    D --> E["Water Level Meter"]
    E --> F["TC"]
    F --> A

EXAMPLE OF BASIC SYSTEM WITH RADIANT PANELS INTEGRATION

graph TD
    A["Solar collector"] --> B["1"]
    B --> C["Heater"]
    C --> D["Boiler"]
    D --> E["B"]
    E --> F["Accumulator"]
    F --> G["Sanitary hot water"]
    G --> H["2"]
    H --> I["C"]
    I --> J["1"]
    J --> K["2"]
    K --> L["B"]
    L --> M["Accumulator"]
    M --> N["1"]
    N --> O["B"]
    O --> P["Accumulator"]
    P --> Q["B"]
    Q --> R["Accumulator"]
    R --> S["B"]
    S --> T["Accumulator"]
    T --> U["B"]
    U --> V["Accumulator"]
    V --> W["B"]
    W --> X["Accumulator"]
    X --> Y["B"]
    Y --> Z["Accumulator"]

EXAMPLE OF BASIC SYSTEM WITH INTEGRATION OF HIGH TEMPERATURE RADIATORS