Manual DGFlow Presflo (page 2 of 16) (English, French, Italian, Spanish)

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- Voltage:

230 Volt a.c. / 110 Volt a.c.

- Frequency: 50-60 Hz

- Maximum current:

10 / 16 / 30 A

- Protection grade: IP 65

- Start-up pressure ( Pm ) :

0,8 / 1,5 / 2,2 Bar

- Shut-off flow rate ( Qa ) :

1 – 2 litres/min

Flow rate

Pressure

2 litre / min

Start-up pressure

Working area

Technical specifications

Losses

2,2

bar

1,5 bar

0,8 bar

Red =

Blue =

Yellow =

l/min

m H

0 50 100 150 200

Shut-off flow rate

Operating conditions

A. Compatible/non

compatible fluids

PRESFLO

is suitable for use

with clean water and chemically

non-aggressive liquids. If the

fluid contains impurities, a filter

should be fitted upstream.

B. Environmental conditions

PRESFLO

should not be used

where there is the risk of an

explosion. The temperature of

the location should range

between 0

C and 65

C, and the

humidity should not exceed 90%.

C. Power supply

Make sure that the variation in

the power supply is never more

or less than 10 % of the RATING

value.

Higher values may cause

damage to the electronic

components.

PRESFLO

can only be used with

single-phase pumps.

- Connections:

1”M BSP / 1”M NPT

- Operating pressure – bursting

pressure: 10 Bar - 40 Bar

- Weight: 1450 g

- Protection against:

- dry running ( automatic restart)

- repeated start-ups

Safety regulations

Before installing or using PRESFLO

, read this manual carefully

and thoroughly.

The pump should be installed and serviced by qualified personnel,

responsible for making the hydraulic and electrical connections

in compliance with the relevant regulations.

DGFLOW

shall not be held liable for any damage relating to,

or resulting from, an improper use of the product, or for any

damage relating to, or resulting from, servicing or repairs carried

out by unqualified personnel and/or with non-OEM spare parts.

The warranty, which is valid for 24 months from the date of

purchase, will no longer be applicable should the product suffer

damage as a consequence of the use of non-OEM spare parts,

tampering or improper use.

When starting the installation, check the following:

- the power supply is switched off.

- the power lines can withstand the maximum current.

- the cable bushings and circuit board cover have been properly

assembled and secured ( see Electrical Connections ).

- the power supply is fitted with regulation earthing and safety

devices.

When servicing the product, check the following:

- the system is not pressurised (turn a tap on)

- the power supply is switched off.

EMERGENCY STOP

• When in use, the pump can be stopped

in the event of an emergency:

press START/STOP.

PRESFLO

is put OUT OF SERVICE.

Position

PRESFLO

can either be fitted directly to the pump outlet or anywhere

along the delivery line. Never install taps between the pump and

PRESFLO

. Do not install a non-return valve between PRESFLO

and the taps, meanwhile it is possible, although not necessary, to

install a non-return valve on the suction piping of the pump.

Installation

Preliminary checks

Take the PRESFLO

out of the packaging and check the following:

- check for damage,

- check the RATINGS correspond with those required,

- that the cable bushings and screws are in place,

- that PRESFLO

’s inlets and outlets are clean and free of any

packaging materials,

- that the check valve moves smoothly.

Hydraulic connections

Orientation

PRESFLO

can be installed at any

angle depending on the flow direction,

as indicated in the diagrams.

CODE:

V / Hz:

I max:

P start:

Year:

V00101101

230 / 50 - 60

16 A

1.5 Bar

2008

RATINGS

Before installing the

product, check that

the RATINGS correspond

with those required.

Water

accumulator

Cover

Never disassemble

water accumulator

and cover

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DGFlow Presflo Manual

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