PEDROLLO DG PED5 Automatic Pressurisation System with Inverter Instruction Manual

PEDROLLO DG PED5 Automatic Pressurisation System with Inverter Instruction Manual

GENERAL INFORMATION

Original instructions for use This manual must always accompany this device and it must be kept in an accessible place so that the users and those responsible for its maintenance can consult it It is recommended that the installer/user should carefully read the specifications and the information contained in the present manual before using the product in order to avoid damage, the improper use of the equipment or the forfeiture of the guarantee This product must not be used by children or by persons with a reduced physical, sensory or mental capacity, or by those who lack experience or knowledge, if they have not received the necessary supervision and instruction Care must be taken to avoid children playing with the device The manufacturer does not accept any responsibility in the event of accidents or damage caused by negligence or non-compliance with the instructions contained in this brochure or in conditions which differ from those set out below Also it does not accept any responsibility for damage caused by the improper use of the pump Do not place any weights or other boxes on top of the package

SAFETY REGULATIONS

In this manual symbols with the following meaning have been used
This symbol warns that non-compliance with the specifications brings with it the risk of electric shocks.
⚠ This symbol warns that non-compliance with the specifications brings with it the risk of harm to persons or damage to property.
⚠ BEFORE INSTALLING AND USING THE PRODUCT:

• carefully read this manual in all its parts;
• check that the data on the registration plate are those wanted and suitable for the device;
• installation and maintenance must be carried out by qualified personnel responsible for establishing the electrical connections in accordance with the local rules of installation;
• the manufacturer does not accept any responsibility for damage caused by maintenance or repairs carried out by unqualified personnel and /or by spare parts which are not original;
• the use of spare parts which are not original, tampering or misuse will result in the forfeiture of the guarantee

DURING THE INITIAL INSTALLATION AND IN CASE OF MAINTENANCE MAKE SURE THAT:

• The power supply has been switched off

• The power supply is provided with safeguards and in particular a highly sensitive circuit breaker (30 mA in class A) in order to protect from alternating, pulsating unipolar, continuous and high frequency currents due to faults In addition check that the earthing complies with the required local standards

• Before removing the lid of the inverter or starting procedures on it the power supply must be disconnected before waiting at least five minutes so that the capacitors have the time to lose their charge through the incorporated discharge resistors
  WARNING: when the DG PED is out of service (red LED flashing) it is still electrically charged. Before any form of intervention on the pump or on the inverter it is obligatory to disconnect the power supply to the pump
  Emergency Stop

• Whilst the DG PED is in operation it is possible to carry out an emergency stop by pressing the I/OON switch

• In the applications with two units in parallel it is only the MASTER inverter which blocks the system

During both the first installation and maintenance ensure THERE IS NO POWER in the line.
⚠ During both the first installation and maintenance ensure the plant is UNPRESSURED.
DO NOT OPEN THE COVERS OF THE INVERTER except the cover of the connectors.

DESCRIPTION OF THE PRODUCT

DG PED is an automatic pressurisation system with an inverter which integrates: built-in high efficiency self-priming pump, a accumulator tank, pressure and flow rate sensors, a non-return valve
DG PED is a compact autonomous quiet and high performance pumping system
A sophisticated electronic control inverter controls the entire system in an intelligent and intuitive manner: · it maintains the pressure of the installation constant by
regulating the velocity of the pump in accordance with the water required; · it controls the hydraulic and electric operating parameters and protects the pump from abnormalities; · it can be equipped with an expansion card that makes it possible to work in parallel with other DG PED in the pumping groups and to manage input and output signals; · it adapts to every type of pressurisation system, including existing ones Where the regulations permit it the system is suitable for use with the water supply network In this case insert a non-return valve upstream; · it limits the starting and operating currents in order to provide a greater saving of energy In the applications in parallel the inverter MASTER and the inverter SLAVE, controlled by the MASTER, stand out The MASTER receives the parameter programming details, controls the functional data, and activates and deactivates the SLAVES as necessary If the MASTER is switched off, the SLAVES return to being autonomous and continue to work independently When it works in a parallel configuration with other inverters, DG PED is able to manage the alternation of the starts in order to harmonise the use of the pumps.

LIST OF PARTS

1. Bipolar general switch I/O

2. Cable hole signals (INPUT/OUTPUT)

3. Control Panel

4. Filling plug

5. Expansion vase plug

6. Vent plug

7. Drain plug

8. 8 Expansion card (OPTIONAL)

9. Fuse 125 A (rapid intervention)

10. Connector locking bandwidth

11. Adjustable elbow joint, with OR

12. Discharge outlet

13. Suction port

14. Anti-vibration levelling feet

15.  Electricity cable
    CONTROL PANEL

16. On/off switch

17. Green coloured LED indicators that indicate:
    ­ pump working;
    ­ working pressure;
    ­ alarms

18. Green or red LED indicators

19. Switches and a for changing readings

TECHNICAL DATA

• Supply voltage ~ 230 V ± 10%

• Frequency 50/60 Hz

• Insulation: class F

• Max absorbed current
  – 7.5 A DG PED 3
  – 10 A DG PED 5

• P1 Maximum absorbed power:
  – 1.0 kW DG PED 3
  – 1.5 kW DG PED 5

• Insulation: class IP X4

• Factory set point 3 bar

• Fuse 12.5 A (rapid intervention)

APPLICATION LIMITS

• Manometric suction lift up to 8 m
• Liquid temperature between 0 °C and +40 °C
• Ambient temperature between 0 °C and +40 °C
• Max working pressure 10 bar
• Continuous service S1
• Vertical position running

Q = Flow rate H = Total manometric head
Tolerance of characteristic curves in compliance with EN ISO 9906 Grado 3B
Three phase motor efficiency class (IEC 60034-30-1)

The performances shown refer to a head in aspiration equal to -1 m(aspiration of 1 m.). If the water level in aspiration is less than the depth of entrance of the pump the performances will be reduced accordingly.

LUMINOUS SIGNALS

INSTALLATION AND HYDRAULIC CONNECTIONS (only for skilled personnel)

⚠ During both the first installation and maintenance ensure THERE IS NO POWER in the line
⚠ During both the first installation and maintenance ensure the plant is UNPRESSURED.

In addition ensure that the electricity supply has protections and in particular has a differential switch of great sensitivity (30 mA in class A) in order to protect from alternating, pulsating unipolar, continuous and high frequency currents due to faults In addition check that the earthing complies with the required local standards Verify that the data on the plate are those desired and that they are adequate for the installation Install DG PED in a place:
– protected from external agents;
– ventilated, free of excess humidity or too much dust;
– where it does not suffer from harmful vibrations or mechanical stresses from the tubes connected to it

⚠ An expansion vessel can be added to the installation mounted on the delivery side (OUT)

FILLING AND SWITCHING ON (only for skilled personnel)

⚠ Never allow the DG PED to run when dry, to avoid damaging the mechanical seal.

CASE A: functioning WHEN BELOW THE WATER (tank or aqueduct)

CASE B: functioning when ABOVE WATER (draught from a tank or well)

1. Unscrew and remove the filling plug and the vent plug
2. Pour in about 15 litres of water until it pours out of the vent hole
3. Recrew the filling plug and the vent plug
4. Open the water tap
5. Attach the plug to the electricity supply
6. Turn the switch to “I”.

⚠ The priming procedure lasts at most 5 minutes, at the end of each minute DG PED automatically stops the electric pump for five seconds then immediately restarts itThis is repeated for all the time the DG PED is priming During this procedure the LEDS will continue to flash The exit from the priming procedure can occur either because of time out (5 minutes) or because it is completed The LEDS stop flashing If the pump does not prime repeat the operation from the start

REGULATION OF THE WORKING PRESSURE

The WORKING PRESSURE is viewed through the green LEDS which are illuminated on the control panel The WORKING PRESSURE of the DG PED goes from a minimum of 1 bar to a maximum of 55 bar
To regulate:

• Press button to view the WORKING PRESSURE
• Press buttons or to increase or reduce the WORKING PRESSURE
  Every time button or is pressed the value increases or decreases in steps of 05 bar

INFLATION UP OF THE VASE (only for skilled personnel)

The expansion vase inside the DG PED is preloaded in the factory to 15 bar
The optimum inflation of the expansion vessel guarantees the perfect operation of the system and it protects the membrane from premature breakages.

⚠ The inflation of the expansion vessel must be done with an installation pressure of zero. Maximum inflation pressure 4 bar.

⚠ Inflate the expansion vessel as shown in the tableland.
For working pressures lower than 3 bar, inflate the vessel by 0.5 bar less than the working pressure.
Example: working pressure = 2 bar,
inflation pressure = 1.5 bar

To inflate the expansion vase:

• Remove the plug
• Use a compressor
• Attach the tube of the compressor to the correct valve
• Inflate the expansion vase to the chosen pressure

⚠ Check the inflation pressure of the vessel at least once a year. If necessary, restore it to the expected value.

SELECTION OF SELF-PRIMING FUNCTION (only for skilled personnel)

The pump leaves the factory as the SELF-PRIMING version; in cases where the negative suction pressure is guaranteed or the feed is already pressurised it is possible to exclude the self-priming function by rotating the lever shown to the vertical position

OPTIONAL

ELECTRIC ATTACHMENTS TO THE EXPANSION CARD

(only for skilled personnel)

Ensure the electricity supply is SWITCHED OFF.
WARNING: any device connected to the expansion card must be in separated extra-low voltage (SELV).
⚠ During removal of the cover do not pull the electric cables connected to the main power switch.

• Unscrew and remove the screws fixing the cover down
• Partially remove the cover to access the clamps of the expansion card

GUIDE TO CLAMPS

• 1-2 INPUT INPUT LEVEL SIGNAL-short circuit in absence of a signal
• 3-4 OUTPUT ALARM SIGNAL ­ max 03 A @ 230 Vac / 1A @ 30 Vdc
• 5-6 RS 485 communication MASTER / SLAVE
• 7-8 0 V not connected
• 9-10 SLAVE if short circuited the inverter becomes SLAVE

ALARMS

TROUBLE SHOOTING

MAINTENANCE

(only for skilled personnel)

INSPECTION AND CLEANING OF THE NON-RETURN VALVE

The NON-RETURN VALVE is positioned inside the suction port

For removal:

1. Remove pressure from the system.
2. Remove the cover and fork (A)
3. Remove the elbow fitting (B)
4. Extract the NON-RETURN VALVE (C)
5. Inspect / clean the NON RETURN VALVE (C)
6. Reassemble the NON RETURN VALVE (C) correctly in its seat
7. Reassemble the elbow (B), fork and the cover

INSPECTION AND CLEANING OF THE FLOW CONTROL VALVE

1. After removing pressure from the system, unscrew and remove the FILLING PLUG (D)
2. Remove the FLOW CONTROL VALVE (E) group by unscrewing the fixing screw Inspect and clean it
3. Mount the FLOW CONTROL VALVE (E) group Ensure its orientation is correct!! Re-tighten the retaining screw
4. Correctly screw in the FILLING PLUG (D)

DIMENSIONS(mm)

GUARANTEE

Before installing and using the product read all the parts of this manual carefully The installation and the maintenance must be undertaken by qualified personnel responsible for the hydraulic and electrical attachments in accordance with the applicable current norms The manufacturer declines any responsibility for damages caused by an improper use of the product and is not responsible for damages caused by maintenance or repairs carried out by unqualified personnel and/or with non-original spare parts The use of non- original spare parts, tampering with the product or improper use will result in forfeiture of the guarantee of the product which covers a period of 24 months from the date of purchase

DISPOSAL

In order to dispose of the parts of which the cards of the DG PED are made you must respect the norms and the laws which are active in the countries where the group is being used
Do not discard the polluting parts in the environment
Correct disposal of WEEE (DIRECTIVE 2012/19/UE)

DECLARATION OF CONFORMITY

We hereby declare under our exclusive responsibility, that the product in question results as being in conformity of what is requested by the following European Union Directives, including the latest changes, and by the relevant national laws of implementation:
2006/42/EU, 2014/35/EU, 2014/30/EU, 2009/125/EU, 547/2012/EU, 2011/65/EU, 2015/863/EU, 1907/2006/EU, 2012/19/UE UK legislation: 2008 No 1597, 2016 No 1101, 2016 No 1091, 2019 No 539, 2012 No 3032

San Bonifacio, 25/02/2022

PEDROLLO S.p.A.
Via E. Fermi, 7 37047 – San Bonifacio (VR) – Italy
Tel. +39 045 6136311 – Fax +39 045 7614663
e-mail: sales@pedrollo.com – www.pedrollo.com

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