FLOWTECH flowcon User manual

1
First Publication Date: 01/09/2020
Revision:
Revision Date:
OPERATION AND
MAINTENANCE MANUAL
VSD - S.MT Inverter
flow con
©

CONTENTS
OPERATION & MAINTENANCE
GENERAL INFORMATION 3
SAFETY INFORMATION 4
SAFETY WARNINGS & PRECAUTIONS 5
CUSTOMER / CONTRACTOR RESPONSIBILITIES 6
Warranty 7
Description 7
Dimensions 8
Technical Data 8
Functions 9
Protections 9
Installation Hydraulic Connection 10
Electrical Connection 12
Line Connection 13
Pump Connection 13
Auxiliary Connector Connection 14
Start Up 16
Programming 16
User Parameters 17
Installer Parameters 18
Alarms 21
Troubleshooting 22
Maintenance 23
2

WARNING!
This equipment may cause electrical shock when in use due to static
electricity build up. We strongly advise that any system pipework is fied
with additional earth bonding, particulary if plastic pipework is being used
in other areas of the system.
Definitions of Safety Warnings and
Precautions
WARNING!
Indicates a potentially hazardous situation which, if
not avoided, can result in serious injury or death.
 CAUTION!
Indicates a potentially hazardous situation which, if
not avoided. Can result in minor to moderate injury, or
serious damage to the product.
General
Information
These instructions are to assist in the installation of the flowcon VSD - S.MT Inverter please
follow them carefully.
If, having read this Operation & Maintenance Manual, there is any doubt about any aspect of
the installation please don't hesitate to contact our technical team.
flowcon VSD - S.MT Inverter
3

Safety
Information
It is essential that correct and safe working practices are adhered to at all times when installing,
operating and/or maintaining any piece of equipment. Always consult safety data sheets, operating
and maintenance manuals, Health & Safety legislation and recommendations and specific
requirements of any equipment manufacturer, site controller, building manager or any other persons
or organisation relating to the procurement, installation, operation and/or maintenance of any piece
of equipment associated or in conjunction with any product provided by flowech Water Solutions.
This document is intended for ALL installers, operators, users and persons carrying out maintenance
of this equipment and must be kept with the equipment, for the life of the equipment and made
available to all persons at all times. Prior to carrying out any work associated with the set it is essential
that the following sheets are read, fully understood and adhered to at all times.
Equipment must only be installed, operated, used, and/or maintained by a competent person. A
competent person is someone who is technically competent and familiar with all safety practices
and all of the hazards involved.
Any damage caused to any equipment by misapplication, mishandling or misuse could lead to risk of
Electrocution, Burns, Fire, Flooding, death or injury to people and/or damage to property dependent
upon the circumstances involved. flowech Water Solutions accepts no responsibility or liability for
any damage, losses, injury, fatalities or consequences of any kind due to misapplication, mishandling
or misuse of any equipment, or as a result of failure to comply with this manual.
Failure to install, operate, use or maintain the equipment in accordance with the information contained
within this document could cause damage to the equipment and any other equipment subsequently
connected to it, invalidating any warranties provided by flowech Water Solutions to the buyer.
4

Safety Warnings &
Precautions
These instructions should be read and clearly understood before working on the system. Please
read this manual carefully and all of the warning signs aached before installing or operating the
equipment keep this manual handy for your reference. This equipment should be installed, adjusted
and serviced by trained and qualified personnel. Failure to observe this precaution could result in
bodily injury.
WARNING! - Install an emergency stop key separately from the isolator. Rotating
shas can be hazardous.
WARNING! - This equipment has a high leakage current and must be permanently
fixed to earth.
WARNING! - Do not aach or remove wiring or connectors when the power is applied.
Do not check signals during operation. When the power is turned on and the running
command is on, the motor will start rotating. The stop key is only eective when the
function is set. If there is a power failure and an operation instruction is given the unit
may start automatically when the power is reinstated.
WARNING! - Make sure that the input voltage is correct. Be sure to install the unit in
a room that is not exposed to direct sunlight and is well ventilated.
Avoid environments which have a high ambient temperature, high humidity or
excessive condensation. Avoid dust. Corrosive gas, explosive gas, inflammable gas,
grinding-fluid mist and salt damage, etc.
WARNING! - Do not connect the power source to any terminals except power
connectors.
WARNING! - Motor control equipment and electronic controllers are connected to
hazardous line voltages. When servicing drives and electronic controllers, you may be
exposed to components at or above the line potential. Extreme care should he taken
to protect against shock. Dangerous voltage may exist aer the power light is o.
Wait more than 5 minutes after turning o the power supply before performing
maintenance or inspection. Hazard of electric shock. Disconnect incoming power
before working on this unit.
WARNING! - The inverter should be protected separately against ground fault.
Observe the regional regulations for electrical installation!







flowcon VSD - S.MT Inverter
5

Customer / Contractor
RESPONSIBILITIES
It is the responsibility of the customer and/or the contractor:
• To ensure that anyone working on the equipment is wearing all necessary protective gear
and/or clothing.
• Is aware of appropriate health & safety warnings.
• Has read the information in this section of the manual.
CAUTION! - It is strongly recommended that all electrical equipment conforms
to National Electrical Codes and local regulations. Only qualified personnel should
perform installation, alignment and maintenance. The manufacturer reserves the right
to alter the technical data in order to make improvements or update information.
CAUTION! - Failure to observe these rules will render the guarantee invalid. The same
applies to repair jobs and/or replacement. Your legal rights are not aected.
CAUTION! - The manufacturer declines all responsibility in the event of damage or
injury caused as a result of tampering with the equipment.
CAUTION! - Do not switch on/o power supply to run/stop the motor/system! Start
the unit only by using run buon or external run command.




6

Warranty
The manufacturer guarantees this product for a period of 24 months as of the date of sale;
if returned, the device must be accompanied by this handbook, with the installation date and
programming parameter values entered on the last page.
The guarantee is forfeited in the event of the following: the device is tampered with, disassembled
or damaged due to mishandling and/or incorrect installation; the device is put to any other use
than the one it was intended for; the device is installed in unsuitable environmental conditions or
connected to a non-standard electrical system.
The manufacturer cannot be held responsible for any kind of damage to people and/or things
ensuing from failure to install the necessary electrical safety devices upstream of the device, or as
a result of unprofessional installation.
The installation and servicing of this device must be performed by specially trained personnel with
the ability to understand the entire contents of this owner’s manual.
For all operations required to be carried out with the cover removed, the device must be
disconnected from the power supply.
Even though there should not be any reason to remove the card, if you do so, remember that
some of its parts remain live for a few minutes aer the unit has been disconnected from the
mains.
The manufacturer cannot be held responsible for any kind of damage to people and/or things
ensuring from the failure of any internal safety devices to intervene, with the exception of
compensation for the device itself if still under guarantee.
This device complies with the directive ROHS 2011/65/EC.
Description
Flowcon VSD - S.MT Inverter is an electronic device, employing inverter-based technology, which
controls the pump stopping and starting functions. Thanks to the particular type of technology
used, it can modulate the frequency (Hz) of the motor’s input current to alter the speed (rpm)
according to the water delivery rate required from the system.
In both operating modes, the device protects the pump from dry running in the absence of water
on intake, by means of a combined control on flow and pressure.Operation of twin pumping units is
admissible only in "P+P" mode.
flowcon VSD - S.MT Inverter
7

Dimensions
Technical Data
Mains power: Single-phase, 230Vac + 10% - 50/60Hz
Motor output: 3x230 V
Maximum motor power: 2.2 kW-3.0 HP
Maximum motor phase current: 9.7 A (rms)
Max. line absorption: 16 A (rms)
Maximum admissible pressure: 800 KPa (8 bar)
Set-point adjustment range: 0.5 - 8 bar
Start pressure adjustment range: 0,2 - 7.7 bar
Pressure drop: 0.7 bar at 100 l/min
Hydraulic connection: 1 ¼” M-M (1”F inlet; rotary on request)
Protection rating: IP X5
Weight: 1.6 kg
Dimensions: 254x147x143 mm
Type of action 1.Y (according to EN 60730-1)
Operating ambient temperature: From +0°C to +35°C
Liquid temperature: From +5°C to +35°C
8

Functions
•Automatic start-up and shutdown of the pump.
•Constant pressure due to pump/motor speed regulation
•Energy savings due to less pump absorption
•Gradual pump start and stop reduces hammering
•Protection against dry running in the event of water shortage during intake
•Automatic reset in the event of dry running, with autonomous error condition recovery
•Ecient leakage monitoring to protect pump in the event of repeated restarts
•Anti- seize function
•Intelligent overload cut-out management for a longer duration of the inverter
•Digital display of pressure, current, voltage and frequency
•Operation/error status signaling via LEDs and on-screen alerts display
•Auxiliary contact for remote control, pair connection or double set-point
•Optional I/O board for additional input and output
•So-start can be enabled to allow a gradual start of the motor pump
•Possibility of interfacing multiple devices as part of the pressurisation units (from two to
four)
•Operation with and without flow switch (in the event of water not perfectly clean or
ferrous)
Protections
•Dry Running
•Overpressure cut-out
•Power supply under-voltage
•Power supply over-voltage
•Output terminal short circuit
•Motor output amperometric control
•Internal overheating of the inverter (ambient temperature and IGBT temperature)
•Significant leakage with continuous motor pump restarts
EMC
The product has been tested according to the standards cited in the declaration
of CE compliance in one of the typical conditions of use. Experience has however
demonstrated that critical variations to the levels of EMC disturbances may occur by
changing the length of the cables, their position, the type of motor used, etc. When
conditions of disturbance towards other devices occur, contact the manufacturer to
evaluate additional solutions to reduce electro-magnetic disturbance.
flowcon VSD - S.MT Inverter
9

Installation Hydraulic Connection
The Flowcon VSD - S.MT Inverter must be installed on the pump delivery side, either upright
or horizontally and respecting the flow direction shown by the arrow on the cover. The pump
outlet water flows through the device before being distributed to the various appliances
connected.
The water that enters the inverter must not contain any impurities and/or other substances
that could jam up the check valve fied inside it. To reduce this risk as much as possible, it is
advisable to fit special filters on the intake side of the pump.
When it is not possible to guarantee the perfect cleanliness of the pumped fluid, it is
advisable to deactivate operation of the integrated flow switch.
Install a small expansion tank (1-2 liters) aer the inverter, to limit restarts caused by any small
leakages which are common in most systems.
The pre-charge value of the tank must be suitable for the pressure values set. This will also
help to keep the operation constant in applications where water requirements are greater (e.g.
for washing machines, toilet flushing systems, etc.).
On no account must a check valve be fied between the inverter and the motor pump or
between the device itself and the user appliances, as it could cause device malfunctions.
When used with a submerged pump, the installation of a check valve before the inverter is
allowed, provided that it is positioned at least 3 metres from the inverter.
A check valve can be fied on the motor pump intake pipe, though, to prevent it draining
when the pump stops.
It is recommended that you do not install the equipment in shas or watertight casing where
heavy condensation can form.
 CAUTION: When the pump stops, the conduits are still pressured so a cock must be
opened to bleed the system before any work is carried out.
10