ICMA S167 Owner's manual

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
1
INSTALLATION AND OPERATION INSTRUCTIONS

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
2
INDEX
IMPORTANT SAFETY AND INSTALLATION INSTRUCTIONS...................................................................................................3
1. SYMBOL DESCRITPION.............................................................................................................................................................4
2. OVERVIEW....................................................................................................................................................................................4
2.1 Advantages of installation of the pump..........................................................................................................................4
3. SERVICE CONDITIONS...............................................................................................................................................................5
3.1 Ambient Temperature............................................................................................................................................................5
3.2 Relative humidity (RH)..........................................................................................................................................................5
3.3 Media (conveying liquid) temperature...............................................................................................................................5
3.4 System Pressure......................................................................................................................................................................5
3.5 Protection Level......................................................................................................................................................................5
3.6 Inlet Pressure...........................................................................................................................................................................5
3.7 Pumping Liquid........................................................................................................................................................................5
4. INSTALLATION.............................................................................................................................................................................6
4.1 Position of Junction Box.......................................................................................................................................................6
4.2 Thermal insulation of the pump body...............................................................................................................................8
5. ELECTRICAL CONNECTION......................................................................................................................................................9
6. CONTROLS ON CONTROL PANEL..........................................................................................................................................11
6.1 Fault code display status....................................................................................................................................................11
6.2 Light area displaying the settings of the pump.............................................................................................................12
6.3Buttonforselectingthepumpsettings............................................................................................................................12
7. SETTING OF THE PUMP...........................................................................................................................................................12
7.1 The control on the pump..................................................................................................................................................13
8. PWM SIGNAL CONTROL MODE............................................................................................................................................14
8.1 Control and Signal................................................................................................................................................................14
8.2 Interface..................................................................................................................................................................................14
8.3 PWM Input Signal..................................................................................................................................................................15
8.4 PWM Feedback Signal.........................................................................................................................................................16
8.5 How to use the signals........................................................................................................................................................16
9. USE OF BYPASS VALVE............................................................................................................................................................17
9.1 Manually-operated bypass valve.......................................................................................................................................18
9.2 Automatic bypass valve (temperature control type).................................................................................................18
10. START UP.....................................................................................................................................................................................18
10.1 Before Start Up...................................................................................................................................................................18
10.2 Exhaust the Motor Pump.................................................................................................................................................18
10.3 Gas-exhausting of heating system.................................................................................................................................18
11. SETTINGS AND PERFORMANCE OF PUMP.......................................................................................................................19
11.1 Relationship between pump settings and its performance...................................................................................19
12. PERFORMANCE CURVE...........................................................................................................................................................20
12.1 Performance curve guide.................................................................................................................................................20
12.2 Curve conditions.................................................................................................................................................................20
12.3 Performance Curve............................................................................................................................................................20
13. CHARACTERISTICS...................................................................................................................................................................21
13.1 Description of nameplate................................................................................................................................................21
13.2 Model explanation.............................................................................................................................................................22
14. TECHNICAL PARAMETERS AND INSTALLATION DIMENSIONS...................................................................................23
14.1 Technical data......................................................................................................................................................................23
14.2 Installation Dimensions....................................................................................................................................................24
15. FAULT CHECKLIST.....................................................................................................................................................................25

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected] Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
2 3
IMPORTANT SAFETY AND INSTALLATION INSTRUCTIONS
1. The installation manual should be read carefully before installation and use.
2. Any failure to comply with the content marked by safety warning marks may cause personal injury, pump damage,
and other property loss, for which, the manufacturer shall not assume any responsibility and compensation.
3. The installer operator and user must comply with the local safety regulations.
4. The user must confirm that installation and maintenance of the product should be conducted by sta proficient
in the instructions and having professional qualification certificates.
5. Pumps must not be installed in a damp environment or places that may be splashed by water.
6. In order to facilitate maintenance, a one-stop valve should be installed on each side of the pump inlet and outlet
respectively.
7. The power supply of the pump should be cut o during installation and maintenance.
8. A pump with a copper or stainless steel body should be adopted to domestic the hot water circulation.
9. The heat feed pipeline should not be supplemented with non-softened water frequently to avoid an increase in
the calcium in the circulating water of the pipeline so as not to clog impellers.
10. It is prohibited to start the pump when there is no pumping liquid.
11. Some models can not be used for diet water.
12. Pumping liquid may be of high temperature and pressure, therefore, liquid in the system should be drained o,
or stop valves on both sides of the pump must be switched o to avoid burns before moving and removing the
pump.
13. In the summer or when the ambient temperature is high, attention should be paid to ventilation so as to prevent
moisture condensation and cause electrical faults.
14. In the winter, if the pump system does not operate or when the ambient temperature is below 0°C, liquid in the
pipeline system should be emptied to avoid causing frost crack to the pump body.
15. If the pump does not use for a long time, please turn o the conduit valves on the pump inlet and outlet ends
and cut o the power of the pump.
16. If the flexible cable is damaged, please connect the service center to have it replaced together with the connector.
17. If it is found that the motor is burning hot and abnormal, immediately turn o the valve on the pump inlet end
and cut o the pump power, besides, immediately contact your local dealer or service center.
18. If the pump failure can not be cleared in accordance with the description in the instructions, immediately turn
o the valve on the pump inlet end and cut o the pump power, besides, immediately contact your local dealer
or service center
19. The product should be placed out of the reach of children, and after installation, isolation measures should be
taken to prevent children from touching it.
20. The product should be placed in a dry, ventilated, and cool place and stored at room temperature.
21. This appliance can be used by children aged 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction
concerning the use of the appliance in a safe way and understand the hazards involved. Children shall not play
with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
Warning
Before starting installation, the Installation and Operating Instructions of device
must be read carefully. Installation and use of the device must comply with local
regulations and follow good operation specification.
Warning
Personnel with physical decline, dysesthesia, or poor mental ability and lacking of
experience and relevant knowledge (including children) should use the pump under
the supervision and guidance of people who can take charge of their safety.

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
4
1. SYMBOL DESCRITPION
2. OVERVIEW
Prior to installation, read this installation and operating instructions. The installation and operation should also be in
accordance with national regulations and accepted codes of good practice.
The pump is most suitable for the following uses:
• Stable heating system with a variable flow
• Heating system with variable pipeline temperature
• Industrial circulation system
• Home heating and domestic water supply system
The pump is equipped with a permanent magnet motor and dierential pressure controller which can adjust the
performance of the electric pump automatically and continuously to meet the actual needs of the system.
The pump is equipped with the control panel on the front, which is convenient for the operation of users.
Easy installation and start-up
• The pump has auto adaptation mode AUTO (factory settings). In most cases, you can
start the pump without need to make any adjustments and automatically adjust it to
meet the actual needs of the system.
• High comfort
• The running noise of the pump and the whole system is low.
• Low energy consumption
• Compared with the conventional circulating pump, its energy consumption is very
low. The minimum energy consumption of the pump can reach 5W.
Warning
Failure to comply with this security declaration will likely result in personal injury!
Failure to comply with this security declaration will likely cause failure or damage
to the equipment!
Notes or instructions facilitating the work and ensuring operational safety.
CAUTION
NOTE
GPA III series circulating pump(also called abbreviation of “pump”) is mainly used for water circulation in
home heating and domestic hot water system.
2.1 Advantages of installation of the pump
A
B
C
D
E
F
G
A

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected] Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
4 5
3. SERVICE CONDITIONS
3.1 Ambient Temperature
Ambient temperature: 0°C ~ +70°C
3.2 Relative humidity (RH)
Max. humidity: 95%
3.3 Media (conveying liquid) temperature
The temperature of liquid conveying +2°C ~ 110°C.
To prevent the control box and stator from appearing condensate water, the temperature of the pump conveying
liquid must be always higher than the ambient temperature.
3.4 System Pressure
The maximum is 1.0 MPa (10 bar).
3.5 Protection Level
IP 44
3.6 Inlet Pressure
To avoid damage to the pump bearing caused by cavitation noise, the following minimum pressure should be main-
tained in the pump inlet:
3.7 Pumping Liquid
The thin, clean, non-corrosive, and non-explosive liquid does not contain any solid particles, bers, or mineral oil;
the pump should not be absolutely used for conveying ammable liquid such as vegetable oil and gasoline. If the
circulating pump is used in case of high viscosity, the pump performance will reduce, therefore, when selecting a
pump, the viscosity of liquid must be considered.
Liquid temperature <75°C 90°C 110°C
Inlet Pressure
0.05bar 0.5bar 1.08bar
0.5m head 5m head 10.8m head

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
6
4. INSTALLATION
• Install the pump, arrows on the pump housing indicate the direction of liquid owing through the pump body.
• When the pump is installed on the pipeline, its inlet and outlet must be installed with two leather packings
provided.
• During installation, the pump shaft must be in the horizontal position.
4.1 Position of Junction Box

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected] Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
6 7
The junction box can rotate at 90°.To change the position of the junction box, follow the operating steps below:
1. Switch the valves of the inlet and outlet and conduct decompression;
2. Loosen and remove the four socket head cap screws that x the pump body;
3. Rotate the motor to the desired position and match the four screw holes;
4. Put the four socket head cap screws back and tighten them in the cross-direction order;
5. Open the valve of the inlet and outlet.
Warning
Pumping liquid may be at high temperature and pressure, therefore, liquid
in the system should be drained o or valves on both sides of the pump
must be switched o before removing socket head cap screws.
Change the position of the junction box, the pump should not be started
until the system has been lled with pumping liquid or valves on both sides
of the pump are open.
CAUTION

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
8
4.2 Thermal insulation of the pump body
CAUTION
NOTE
Restrict the thermal losses of the pump body and pipeline. Conduct
thermal insulation for the pump body and pipeline so as to reduce the
thermal losses of the pump and pipeline.
Isolating or covering junction box and control panel is not allowed

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected] Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
8 9
5. ELECTRICAL CONNECTION

ELECTRONIC CIRCULATOR FOR SOLAR THERMAL SYSTEMS - Art. S167
FI.S167.EN.C - 03/2023
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: [phone] - www.icmaspa.it - [email protected]
10
• The pump does not need external motor protection.
• Check whether the voltage of the power supply and frequency match with the parameters marked by pump
nameplate.
• Use the pump-associated plug to connect power supply.
• If the indicator lamp on the control panel lights, it indicates that the power supply is switched on.
Electrical connection and protection should be
carried out in accordance with local regulations.
Warning
The pump must be connected to an earth wire
The pump must be connected to an external power switch;
the minimum gap between all the electrodes is 3mm.