DIGITAL CONTROL UNIT - 60 Pages

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DIGITAL CONTROL UNIT

Catalog excerpts

DIGITAL CONTROL UNIT FOR THERMAL SOLAR SYSTEMS

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This device is a centralized control unit for thermal solar panels. Supplied with 5 outputs (Load Relays + Alarm Relays), 2 PWM outputs, and 4 Inputs (Probes) it is able to manage a system configuration that can be selected among 20 common types of layouts. When a specific installation is selected, the control unit automatically manages the outputs and inputs used to control the valves, the pumps, the integrative sources and the probes used in the type of installation selected. Moreover on the backlit LCD display it is possible to visualize the hydraulic diagram of the installation set up,...

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TECHNICAL FEATURES Power supply:    230V~ 50Hz Sensors type:    4 x Pt1000 Class B DIN Sensor operating range:    -50 °C .. +200 °C (collector) Alarm relay contacts rating: 4(1)A max @ 230V ~ (SPDT) Output Signal: Temperature reading range: -40,0°C .. 260,0°C Accuracy:    ± 1 °C Resolution: Offset adjustment: on S1 on S2: on S3: on S4: Installer Password: Acoustic Signal: Backlight timing: OUT2 Relay Logic: OUT3 Relay Logic: OUT4 Relay Logic: 0,1 °C (0,2 °F) ±5.0°C ±5.0°C ±5.0°C ±5.0°C 0000 .. 9999 (default 0000) On/Off (default On) 20 sec from last keypress NOR = N.O. REV=N.C. non-editable...

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Humidity limits:    20% .. 80% RH non-condensing Case:    Material:    ABS V0 self-extinguishing Color:    Signal White (RAL 9003) Weight:    — 723 gr. (version with probe) — 553 gr. (version without probe) Installation:    Wall-mount Class:    not applicable Contribution to energy efficiency:    not applicable NORMATIVE REFERENCES The product is in conformity with the relevant Union harmonisation legislation (EMC (2014/30/UE)    - AVAILABLE ACCESSORIES AND SPARES • Accessories for free contacts: 2 x 230V— inputs and 2 free voltage outputs. • Pt1000 probe -50°C .. +200°C grey cable. •...

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The installation technician shall operate in full compliance with all the applicable technical standards in order to grant the unit safety. To install the device, perform the following operations: 3 Assembly with cable input on the rear panel: if the cable fasteners (delivered with the unit) are not required for installation, use a screwdriver to remove the base blocks permitting the cables to pass through, and fit the blocks delivered (see point 6). 1 Remove the central screw and the plastic door. 2 Remove the two screws shown in the drawing, then remove the whole body from th

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4 Fix the power unit base to the wall. 6 Assembly with cable input on the lower side: fit the cable fasteners and/or the blocks delivered with the unit. 5 Fit the cover again with the electronics at the base.

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7 Make the electrical wiring, according to the following diagram and the examples at page 8 and 9. : Reinforced insulation. Before wiring the appliance be sure to turn the mains power off. WARNING! S1 (or ‘COL’), S2, S3 and S4 are Pt1000 temperature sensors. For S1 sensor the -50°C..+200°C range probe (grey cable) must be used, while the probes with the range of -50°C..+110°C (blue cable) can be used for the other probes. When setting up installations with 2 solar panels, the probes corresponding to S1 and S4 must be exclusively of the -50°C .. +200°C range type. The relay outputs relative...

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WIRING EXAMPLE ONLY FOR SOLAR CIRCULATORS IN ACCORDANCE WITH DIRECTIVE ErP 2015 WITH EXTERNAL PWM SIGNAL.

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WIRING EXAMPLE FOR 3 SPEEDS “HIGH EFFICIENCY” SOLAR CIRCULATORS IN ACCORDANCE WITH DIRECTIVE ErP 2015, WHICH DO NOT NEED AN EXTERNAL PWM SIGNAL.

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8 Fit the door again to close the power unit. TURNING ON AND OFF To turn the control unit on and off, press the ‘ esc ’ key for at least 3 seconds. When the control unit is turned on it will carry out a diagnosis of the internal circuitry to verify its correct operation and the red led will flash three times. If the control unit reveals no anomalies the red led will remain on, otherwise it will continue to flash quickly and the display will show the type of error. BACKLIGHT By pressing any key the backlight of the display is activated. The backlight automatically shuts off after about 20...

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the control unit cyclically activates the loads wired to the unit so that the installer can verify the accuracy of the wirings performed. DISPLAYING TEMPERATURES AND ENERGY PRODUCED The device will normally show on the alphanumeric display the temperature measured by the connected probes, the speed (in%) of thecollectorpumps connected to the PWM (E and W) outputs and the amount of energy produced. The speed of the PWMpump of the EASTcollector is shown on the display with %EFX, while the one of the WESTcollector is shown on the display with %WFX. The display of the energy is expressed in KWh...

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operation of the system according to the set up data. ABC (Automatic Boiler Control) By pressing the ' ft ' button you can enable or disable the function ABC of the control unit. When the 'ABC' function is activated, the display will light up the ' ft ' icon. The following conditions activate the EAST collector pump: S_1>TABC + hysteresis' value and S_1>S_2+hysteresis' value The following conditions switch off the collector pump: S_1<TABC or S_1<S_2 The following conditions activate the WEST collector pump: S_4>TABC + hysteresis' value and S_4>S_2+hysteresis' value The following conditions...

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INSTALLER PARAMETERS ENTER THE CURRENT PASSWORD. (same procedure described above) To access the installer parameters press the ‘  ‘ key. Entering the Password The display will show ‘PWD 0000’ with the leftmost digit flashing thus requesting for the correct password. In order to set the 4 password digits use the ‘  ‘ or ‘  ‘ key; by pressing the ‘  ‘ key, the current digit is confirmed and the flashing is transferred to the following digit. After confirming the last digit, the ‘  ‘ key will give access to the installer parameters. The initial password is factory set as ‘0000’. Modifying...

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