Nastec 4HS User manual

4HS Submersible Pumps
Installation and Operating Manual
man4HS_06_eng.docx LCD 2.24 INV 2.2 H 2.1

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Index
1. Introduction of the 4HS submersible pumps range..................................................................................................3
2. Safety Instructions ....................................................................................................................................................4
3. Stocking conditions ...................................................................................................................................................4
4. Packing content......................................................................................................................................................... 5
5. General technical features....................................................................................................................................5
6. Pump installation ......................................................................................................................................................6
6.1 Installing pump in the well................................................................................................................................ 6
6.2 Pump cable........................................................................................................................................................ 7
7 CM installation ..........................................................................................................................................................8
7.1 Electric wiring....................................................................................................................................................9
8. 4HS pumps installation for constant pressure mode..............................................................................................10
8.1 Pressure tank ..................................................................................................................................................11
8.2 Pressure sensor...............................................................................................................................................11
8.3 Minimum stop frequency at 0 delivery (f min Q=0) during constant pressure control..................................12
9. 4HS pumps performance range ..............................................................................................................................13
10. 4HS use and programming..................................................................................................................................16
10.1 Display.............................................................................................................................................................16
10.2 Initial setting ...................................................................................................................................................16
10.3 Initial view.......................................................................................................................................................18
10.4 Menu display...................................................................................................................................................19
10.5 Installer parameters........................................................................................................................................19
10.6 Advanced parameters.....................................................................................................................................24
11. Protections and alarms ...................................................................................................................................27
12. Trouble-shooting chart .......................................................................................................................................30
13. Technical Assistance ...........................................................................................................................................31

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1. Introduction of the 4HS submersible pumps range
4HS is a 4” high speed centrifugal submersible pump for clean water composed by:
high speed three phase asynchronous motor with wet rotor and canned type resin filled stator.
Built-in inverter on board driven by a dedicated control module (CM) positioned outside the well.
High speed multi stage pump entirely made of AISI 304 stainless steel.
Pump driving made by inverter allows:
Modify the pump speed to grant constant the desired pressure regardless water request. In this way the
pump is operated only and when needed thus avoiding unnecessary waste of energy and granting longer
system life.
implement the soft start and the soft stop to increase the system life and reducing the current peaks.
protect the motor from overloading and dry running , overvoltage, undervoltage and possible abnormal
conditions
4HS is used on residential and industrial sectors for water pressurized systems, granting:
Energy saving
Simplified and quick installation
Long life reliability
4HS: submersible pump
CM: control module

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2. Safety Instructions
NASTEC strongly suggests to reading carefully this operation manual before using and installing its products
Any operation (installation, maintenance and repair) must be carried out by trained, skilled and qualified personnel.
Failure to observe and follow the instruction of this manual may result fatal in dangerous electric shock.
The unit must be connected to the power supply by a switch granting the
complete visual disconnection (separation) from the line before any operation
on the 4HS itself and on the connected load.
Disconnect the unit from the power supply before any operation.
Do not remove for any reason, the cover of the CM and the cable guard
without having visually disconnected the unit from the power supply and
having waited at least 5 minutes.
4HS and pump system must be grounded properly before operation.
For the entire period the CM is powered a high voltage is present on the
output terminals independently if it is running or not the pump.
Do not start the pump for any reason if not completely immersed in water.
Avoid any shock or serious impact during transportation.
Check the 4HS immediately upon delivery and check for damage and/or missing parts. In either case, immediately
notify the supplier.
Damages due to transportation, incorrect installation, or improper use of the device will null and void the warranty.
NASTEC cannot be held responsible for any damage to people and/or property due to improper use of its
products.
3. Stocking conditions
Store the product on its packaging in a dry and well ventilated environment within a temperature range from -20 ° C
and 70 ° C.
If the pump remains in stock for more than a year is recommended to disassemble the rotating parts and test their
functionality. It 'also need to power the electric pump (without running the motor) to allow charging of electrolytic
capacitors of the inverter module.
If the pump has already been put into operation and is then placed in storage, the minimum storage temperature is
4 ° C. Alternatively you need to add anti-freeze fluid.

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4. Packing content
Packing includes:
4HS submersible pump with 2,5 meters flat cable length.
CM (control module)
Pressure transducer
Operating Manual
Cable junction kit
5. General technical features
PUMP
Max. temperature of pumped liquid
35 °C (92 °F)
Min. speed of water flow on motor case
0.2 m/s
Characteristics of pumped liquid
clean, non-corrosive, non-explosive, free of particles and
fibers, with a maximum sand content of 50 g/m3
Grade of protection
IP68
Used Materials
Impellers and diffusers in AISI 304 stainless steel
Cable
Flat cable ACS –WRAS
CM
Max. temperatura dell’ ambiente d’ installazione
60 °C (140 °F)
Grade of protection
IP55 (NEMA 4)
Used Materials
Aluminium , LCD membrane with PVC stickers, antipull
plug in polyamide
Analog input
2 x analog input 4-20 mA + 2 settable analog input 4-20
mA or 0-10 V .
Digital input
4 inputs, N.O or N.C settable via software
Digital output
2 output relays 5 A , 250 Vac, N.O. or N.C settable
Auxiliary feeding
24 Vdc (300 mA),10 Vdc (5 mA)
Day and time indication
dater with lithium backup battery (unavailable)
User display
Backlit LCD display with 16 characters x 2 rows , 5
buttons, buzzer for acoustic
Short circuit protection
With fuse (25 Amp)
CERTIFICATIONS
CE
Check the 4HS packing immediately upon delivery and check for damage and/or missing parts; in
either cases immediately notify the supplier

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6. Pump installation
Entire installation procedure must be performed verifying that pump is not connected to the
mains.
Pump can be installed both vertically and horizontally,
but the outlet should never be below the horizontal
line.
If the pump is not installed in a well, to grant a proper
cooling, a cooling sleeve must be used; doing so the
minimum speed of the pumped liquid has to be
granted.
6.1 Installing pump in the well
To reduce noise transmission it is advised to use plastic pipes.
The pump must always be secured in the well through a special rope attached to loop on the pump head.
It is recommended not to drop the pump in the well by using the electric cable, its integrity must be preserved in all
operations. In this regard it is recommended to fix the cable on cable support or on the pipe.
During operation the pump suction must always remains at least 1.5 meters below the dynamic water level.

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Do not drop the pump in the well by using the electric cable
Make sure about the electric cable integrity during all the operations.
Ensure the pump in the well with a stainless steel rope to be fixed to the
hole in the pump head
6.2 Pump cable
4HS are equipped, in their standard configuration, with 5 meter flat cable length.
SINGLE PHASE INPUT POWER
If the distance between the pump and the CM is longer than the supplied cable it is necessary to make a junction
performed by the special kit supplied as standard.
The cable section for additional power conductors must be calculated considering the maximum allowed voltage
drop.
4HS model
type of wire
total cable length
10 –50 m
50 –100 m
100 –150 m
150 –200 m
4HS 02/04
4HS 04/03
4HS 06/02
power
2,5 mm2 (AWG
13)
4mm2 (AWG 11)
6 mm2 (AWG 9)
10 mm2 (AWG 7)
signal
1 mm2 (AWG 17)
1,5 mm2 (AWG 15)
4HS 02/08
4HS 04/05
4HS 06/04
power
4 mm2 (AWG 11)
6mm2 (AWG 9)
10 mm2 (AWG 7)
16 mm2 (AWG 5)
signal
1 mm2 (AWG 17)
1,5 mm2 (AWG 15)
POWER
SIGNAL
blue
brown
ground
red
white

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7CM installation
The CM can be easily fixed to the wall using 2 screws through the holes shown in Figure 2.
Then using the special inserts thus cover can be fixed firmly.
The IP55 protection degree enables the CM installation even in humid and dusty environments. However it is
recommended to protect the CM from the direct exposure to weather and sunlight.
To make the junction is necessary to follow carefully the instructions inside the kit.
At the time of joining and electrical connection is essential to maintain the
correspondence between the signal cables.
After cable joining and placed the pump in the well you must perform, before
connecting to the CM, a test of insulation: join together the two power cables and,
applying a voltage of 500V, an insulation resistance from the ground higher than 100
Mohm must be verified. Join together the two signal cables and, applying a voltage of
500V, an insulation resistance from the ground higher than 100 Mohm must be verified.

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7.1 Electric wiring
Input power line (LINE):
L1,L2 power line
GND ground
Output power line (PUMP):
M1,M2 terminals
GND ground
Pump signal:
S+ (red)
S- (white)
Analog inputs:
AN1 (4-20 mA or 0-10 V)
AN2 (4-20 mA or 0-10 V)
0V
+24V
AN3 (4-20 mA)
AN4 (4-20 mA)
0V
+24V
10V
0V
AN1 o AN2 terminals can be set as
voltage input (V) or current input (I)
through J5 e J9 selector.
Digital inputs:
IN1
0V
IN2
0V
IN3
0V
IN4
0V
Communication
auxiliary (RS485):
S1+
S1-
Digital outputs (relays):
RELAY1: pump run signal
NO: normally opened
COM: common
NC: normally closed
RELAY2: alarm signal
NO: normally opened
COM: common
NC: normally closed
Relays of digital outputs are free
contacts relays (no voltage) Max
voltage is 250 V AC and max
current is 5 A.
L1

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Read carefully the Guidelines for safety before installing the device.
At the end of the installation check that no other objects are inside the CM or
deposited on the electronic board.
It is recommended to tighten all 4 screws with washers of the cover before
powering the device. Otherwise, you may fail to connect to ground the cover
with a risk of electric shock or even death.
8. 4HS pumps installation for constant pressure mode
CM can manage the rotation speed of pump to maintain constant the pressure in a point of plant regardless the
water demand of the user.
The basic scheme of a line of pumping system capable of achieving this operation is as follows: