Seitron ELIOS 25 STANDARD User manual

Quick Guide
ELIOS 25 STANDARD
DIGITAL CONTROL UNIT FOR
THERMAL SOLAR SYSTEMS
TST12M0000SE 042230 280923
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COMPLETE USER MANUAL.
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TECHNICAL FEATURES
Power supply: 230V~ 50Hz
Power absorption: 4 VA
Sensors type: 4 x Pt1000 Class B DIN
Sensor operating range: -50 °C .. +200 °C (collector)
-50 °C .. +110 °C (Boiler)
Temperature reading range: -40,0°C .. 260,0°C
Accuracy: ± 1 °C
Resolution: 0,1 °C (0,2 °F)
Offset adjustment: on S1: ±5.0°C
on S2: ±5.0°C
on S3: ±5.0°C
on S4: ±5.0°C
Installer Password: 0000 .. 9999 (default 0000)
Acoustic Signal: On/Off (default On)
Backlight timing: 20 sec from last keypress
OUT2 Relay Logic: NOR=N.O. REV=N.C.
non-editable logic for
layouts with 2 collectors
(default N.O.)
OUT3 Relay Logic: NOR=N.O. REV=N.C.
(default N.O.)
OUT4 Relay Logic: NOR=N.O. REV=N.C.
(default N.O.)
Output relay contacts rating:
OUT1 - OUT2 - OUT3 - OUT4: 4x2(1)A max 230V~(SPST)
Voltage free.
Alarm relay contacts rating: 4(1)A max @ 230V~(SPDT)
Voltage free.
Output Signal:
PWM: Amplitude: 10V ±15%
Frequency: 1KHz
Current: 15mA max.
Risolution: 0.5%
Max allowed PWM
cable length: < 5m.
Protection grade: IP 40
Type of action: 1
Overvoltage category: II
Pollution degree: 2
Tracking index (PTI): 175
Class of protection against
electric shock: II
Rated impulse voltage: 2500V
Number of manual cycles: 50000
Number of automatic cycles: 100000
Software class: A
EMC test voltage: 230V~ 50Hz
EMC test current: 34mA
Distances tolerances fault
mode ‘short’ exclusion: ±0,15mm
Ball pressure test temperature: 75°C
Operating temp. range: 0°C .. 40°C
Storage temp. range: -10°C .. +50°C
Humidity limits: 20% .. 80% RH
non-condensing
Case: Material: ABS V0
self-extinguishing
Color: Signal White (RAL 9003)
Dimensions: 156 x 108 x 47 mm
W x H x D
Weight: Version with probe: ~723 gr.
Version without probe: ~553 gr.
Installation: Wall-mount
COMMANDS DESCRIPTION
WARRANTY
The user is guaranteed against the product’s defects of conformity according to European Directive 2019/771 as well
as the Seitron warranty terms, available online on the website www.seitron.com.
We invite the user to visit our website and check the latest version of technical documents, manuals and catalogs.
WHAT’S IN THE PACKAGE
x 6 (white)
Plugs for cable ingress holes
x 6 (black)
Cable retainer if the cables are mounted
from the underside
x 2
ø 5mm wall dowels
x 2
Chipboard screw 4x35 mm
x 1
x 2 (blue cable)
Pt1000 temperature probe
with range -50°C .. +110°C
x 1 (grey cable)
Pt1000 temperature probe
with range -50°C .. +200°C
WARNING!
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 ash three times.
If the control unit reveals no anomalies the red led will
remain on, otherwise it will continue to ash quickly
and the display will show the type of error.
RED LED
SELECTION KEYS
SELECTION KEYS
RESET
KEY
MENU
KEY
CANCEL
KEY MANUAL KEY
CONFIRMATION
KEY

WARNING!
It is advisable to t a 10A 250V~ fuse on the power unit mains capable to intervene in case of short circuits on loads.
OUT1: Circulation pump output
OUT2: Integrative source output
TERMINAL BOARD GROUNDING: On the base of the control unit case is located a brass terminal board for connecting
the ground protection conductors of the load devices connected to the control unit.
S1:Pt1000 temperature probe (probe supplied with grey cable), with -50°C..+200°C range, to connect it to the
collector.
S2:Pt1000 temperature probe (probe supplied with blue cable), with -50°C..+110°C range , to connect it to the bottom of the
boiler (cold zone).
S3:Pt1000 temperature probe (probe supplied with blue cable), with -50°C..+110°C range , to connect it to the bottom of the
boiler (cold zone).
Standard example for the placement of the three supplied probes:
WIRING DIAGRAM
S1 - COLLECTOR PUMP
CIRCULATION
PUMP
SOLAR THERMAL
PANEL
S2 - BOILER PROBE
S3 - BOILER PROBE
BOILER
BOILER
EXAMPLE OF CONNECTION FOR 3-SPEED SOLAR
CIRCULATORS WITH WET or “HIGH EFFICIENCY” ROTOR
COMPLIANT WITH DIRECTIVE ErP 2015, WHICH DOES
NOT REQUIRE AN EXTERNAL PWM SIGNAL (WITHOUT A
CONNECTOR FOR PWM).
WIRING EXAMPLE ONLY FOR SOLAR CIRCULATORS
IN ACCORDANCE WITH DIRECTIVE ErP 2015 WITH
EXTERNAL PWM SIGNAL.
INSTALLATION
WARNING!
• CAREFULLY READ THE COMPLETE INSTRUCTION MANUAL
• The installation technician shall operate in full compliance with all the applicable technical standards in order to grant the unit safety.
• Before wiring the appliance make sure to turn the mains power off.
• Installation and electrical wirings of this appliance must be made by qualied technicians and in compliance with the
current standards.
• When closing the unit please ensure that the removable wiring terminals have been inserted with the correct orientation
(the terminals screws must be facing upward).
ASSEMBLY WITH CABLE
INPUT ON THE LOWER SIDE:
t the cable fasteners and/or the
plugs for cable ingress holes
(provided).
ASSEMBLY WITH CABLE INPUT ON
THE REAR PANEL:
if the cable fasteners (included
with the unit) are not required for
installation, use a screwdriver to
remove the base blocks permitting
the cables to pass through, and
insert the plugs for cable ingress
holes (provided).

172 mm
SEITRON IS THE MANUFACTURER OF THE UNIT.
CONSIDERED THE WIDE RANGE OF CIRCULATORS THAT CAN BE COMBINED, THE FOLLOWING DIAGRAMS
ARE TO BE CONSIDERED AS INSTALLATION EXAMPLES. REFER TO THE CIRCULATOR MANUAL FOR
CORRECT CONNECTION AND PARAMETER SETTING.
: reinforced insulation The outputs OUT1, OUT2, OUT3, OUT4
and Alarm, are voltage free.
N L
230V~
PUMP
230V~
L7 6 N
PUMP
230V~
N L
230V~
230 V~
Segnale PWM
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.
L
N
230V~
(-)PWM