Flofab GEM Manuel utilisateur

HIGH EFFICIENCY INTELLIGENT

CIRCULATING PUMP

Catalog 1.Instructions for use

1.Instructions for use

2.Cautions

3.Product Overview

4.Product Installation

5.Product introduction

6.Initial startup and operation

7.Troubleshooting table

8.Technical Data

9.Dimension

10.Maintenance

11.Warranty Terms

4.1 Installation location

4.2 Installation

4.3 Installation direction

4.4 Control box position

4.5 Electrical installation

5.1 Model composition and meaning

5.2 Nameplate

5.3 Insulation foam

5.4 Control function

6.1 Before start

6.2 Evacuate the pump

6.3 Start-up products

6.4 Product setup

7.1 Operation Status

7.2 Fault Cause and Finding

Dear users, thank you for your trust and support. You are welcome to use

our company's GEM series variable frequency shielded circulation pump

(hereinafter referred to as pump)and we will wholeheartedly provide you with

excellent service. Please carefully check whether the received product is

consistent with the ordered product, whether the accessories and instruction

manuals are complete, and whether there is any damage during transportation. If

you find the above situation, please contact our sales department or local

dealer in time.

Indicates a clause that there is a possibility of endangering personal safety

and must be strictly observed.

Indicates a clause that requires special attention to prevent damage to

the pump.

This warning label indicates that please do not touch the pump while

the pump is running and when the temperature of the entire pump is still

very high after the operation is stopped.

This warning label indicates that the piping inside the pump contains

high-pressure liquid, and the valves on both sides need to be closed

before operation during maintenance and disassembly.

Before using this product, please be sure to read this manual carefully

and follow the product operating procedures. Please note that the product

(including the instruction manual) is subject to any future changes without

notice.

Attention

Warning

In order to ensure the long-term stable operation of the product, before you

install, operate, overhaul or maintain, please read this manual carefully, so as

to fully understand the relevant safety issues and the technical parameters and

operation methods of the pump.

Attention

This warning label indicates that there may be a risk of electric shock.

When wiring, repairing, or maintaining, please disconnect the

2.Cautions

In order to ensure personal safety, please read the following information

carefully before you install, operate, repair or maintain.

The power supply used must be consistent with the power supply

identified on the product. The user must confirm that only qualified

personnel with professional certification and proficiency in this manual

can install and maintain this product.

When checking and repairing the pump, the power must be cut off

before operation. This can avoid electric shock or sudden start of the

pump, which may cause injury or death.

Warning

Before starting the pump, the motor must be effectively grounded and a

properly rated motor protection switch must be connected.

The pump must not be installed in a wet or potentially splashable area.

To facilitate maintenance, a shut-off valve should be installed on each

side of the pump.

The heating pipes should not be filled with non-softened water

frequently to avoid the increase of calcium content in the circulating

water in the pipes and blocking the impeller.

The operating ambient temperature of the pump is 0~40℃. Storage

ambient temperature is 0~70℃

The liquid may be high temperature and high pressure, and the system

must be completely drained of liquid or the valves on both sides must

be closed before moving and dismantling the pump.

In summer or in hot environments, ventilation must be ensured to avoid

possible failures caused by condensation.

Do not start the pump without fluid.

In winter, when the pump system does not work or the ambient

temperature drops below 0°C, the liquid in the system should be completely

emptied to avoid freezing and cracking of the pump body.

If the pump is not used for a long time, close the pump inlet and outlet

pipe valves and disconnect the power supply.

If the cable is damaged, it must be replaced by qualified personnel.

If the pump overheats, close the pump inlet valve and cut off the power

immediately. If you find that the motor is abnormal, please contact your

supplier or service center immediately.

If the fault cannot be solved according to the manual, please immediately

close the inlet and outlet valves of the pump, cut off the power supply,

and contact the supplier or service center immediately.

This product should be placed out of the reach of children. After

installation, take isolation measures to avoid children's proximity.

This product should be stored in a dry, well-ventilated place with low

temperature.

Warning

Attention

3.Product Overview Outline structure diagram

Internal structure diagram

Pumped liquids

GEM series variable frequency shielded circulation pump(hereinafter

referred to as electric pump), the electric pump is mainly composed of four

parts: motor, pump, seal and controller. The motor is a shielded motor with

a permanent magnet rotor, and the drive is controlled by a special inverter.

The water pump and the motor are sealed by a shielding sleeve, and a

rubber sealing ring is used for static sealing at the sealing part of the fixed

stop. This product is suitable for the following systems:

Stable variable flow heating system

Variable temperature pipeline heating system

HVAC system

Industrial circulation system

Domestic heating and domestic water supply system

The pump is equipped with a control panel and knob on the front for

user-friendly operation.

The pump is suitable for pumping liquids with easy flow, small viscosity, clean,

non-corrosive and non-explosive, and the liquid must not contain solid particles

or fibers that can cause mechanical or chemical damage to the pump.

Cover

Display

Knob

Button

Wiring Post

Housing

Pump Body

Barrel

Model：GEM

Inlet

Outlet

4.Product Installation

4.1 Installation location

The pump should be installed indoors.

4.3 Installation direction

4.2 Installation

When installing a circulation pump, the arrow on the pump casing

indicates the direction of flow of the liquid through the pump.When

installed, the shaft of the electric pump must be horizontal.

4.4 Control box position

Junction box can be rotated within 90°

The procedure for changing the position of the

junction box is as follows:

a、Close the inlet and outlet valves and relieve pressure;

b、Unscrew and remove the four socket head cap screws

securing the pump body;

c、Rotate the motor to the desired position and align

the four screw holes;

d、Reinstall the screws and tighten them diagonally clockwise;

e、Open the inlet and outlet valves.

The pumped liquid may be high temperature and high pressure. Before

removing the socket head cap screws, the liquid in the system must be

drained or the valves on both sides of the electric pump must be closed.

When changing the position of the junction box, the electric pump

can only be started after the system is full of pumped liquid or the

valves on both sides of the electric pump are open.

Warning

4.5 Electrical installation

Perform electrical connection and protection according to local regulations.

Check that the supply voltage and frequency values match those listed on

the nameplate.

Electric shock

Death or serious personal injury

-Connect the pump to an external power switch with a minimum contact

gap of 3mm between the electrodes.

-Ground or electrical neutralization can be used for protection against

non-direct contact.

Make sure the pump is connected to the external main switch.

The pump does not require an external motor switch.

The motor is equipped with thermal protection device to avoid slow

overload and stall.

After powering up the pump, the pump will start in about 5 seconds.

1x230V±10%，50/60Hz，PE.

The voltage tolerance is only for the variation range of the power supply

voltage, and the pump must not be operated at a voltage other than the

voltage indicated on the nameplate.

Supply voltage

Step

Measures Illustrations

Remove the screws from

the housing and cover

Removing the cover

RCD

Wiring Diagram

Example diagram of a plug-connected motor with mains switch,

backup fuse and additional protective equipment

Warning

Step

Measures Illustrations

Strip the cable conductor

according to the diagram and

connect the cable conductor

to the plug.

Insert the power plug into

the female socket in the

control box.

Fasten the cable connector

and reassemble the cover.

Rotate the knob slowly, after

the knob hole on the mask is

aligned with the control rod,

fasten the cover with the

housing screw.

Attention

The water pump foam for the heating system is attached with the pump.

Before installing the water pump, remove the heat insulating foam, and

then put the foam on the pump body after the installation is completed.

Name

Product Name

Model

Minimum current(A)

Maximum current(A)

Minimum power(W)

Maximum power(W)

Maximum system pressure

Voltage(V)

Frequency(Hz)

Enclosure protection grade

Ambient temperature

Energy Efficiency Index, EEI

Serial number

CE mark and approvals

5.Product introduction

5.2 Nameplate

5.1 Model composition and meaning

3 4 5 6 7 8 9 10 11 12 13 14

4.4 Insulation foam

GEM

Example：GME50-120F 280

Port-to-port length:280mm

Connector type:F indicates flange, no letter indicates thread

Max. head，Unit is dm

Nominal diameter of inlet and outlet,Unit is mm

Model number

Limit heat loss from the pump body.

Reduce heat loss from the pump by physically isolating the

pump casing from the surrounding environment.

Attention

Proportional pressure curve(PP1,PP2 or PP3)

Constant pressure control is used to adjust pump performance based on actual

system heat demand, but the pump performance curve will depend on the desired

pump curve. The pressure setting range of the pump is 0-12m, which can be

set by yourself.

Proportional pressure control is used to adjust the pump performance

according to the actual system heat demand, but the pump performance

depends on the required pump curve PP1, PP2 or PP3. Three adjustable

gears, low, medium ,high. Three adjustablegears, low, medium ,high.

Constant speed curve

At constant speed, the pump operates at a constant speed, independent of

the actual flow demand of the system, and the pump performance is determined

according to the desired performance curve.Pump speed setting range

1200-4200rpm, 60rpm/grid, can be set by yourself.

015

5.4 Control function(Take GEM50-120 as an example）

Constant pressure curve

Choosing the correct constant pressure setting depends on the

characteristics of the heating system and the actual heat demand.

Figure2 Constant pressure curve/setting

Figure1 Three proportional pressure curves/settings

Choosing the correct proportional pressure setting depends on the

characteristics of the heating system and the actual heat demand.

Figure3 Constant speed curve/setting

Choosing the correct constant speed setting depends on the

characteristics of the heating system.

6.4 Product Setup

6.4.1 Operation Panel

6.4.2 Menu Overview

Step

Measures

Button Function

Home

Control Mode

Setpoint

Estimated flow

Running Status

Control Mode

Motor speed

Estimated flow

Head

Fault Log

Current Failure

Normal

Stop

Min speed

Max speed

Low

Medium

High

English

LCD off time

Constant pressure

setting

Constant speed

setting

Proportional pressure

Fault Code

Power and power

consumption

Running mode

Date Setting

F0,F6,F8,F12,F14

F1,F2,F3,F7,F13

F9,F10,F11

Time Setting

Proportional pressure

instruction

Constant pressure

instruction

Constant speed

instruction

Date，time settings

Control mode instruction

Auxiliary Failure Advice

Version

Control Mode

Constant pressure

Constant speed

Language set

Default set

中文

Warning and Alarms

Status Set Assist

Back to "Home" interface

Return to the previous

Navigate between the main

menu, submenus, and numbers,

adjust the numbers

Press to save the changed

settings and expand the

Illustrations

Turn on the power of the

water pump, the water pump

will start after about 5

seconds.

LCD display starts and sets

the language.

The factory setting is medium

proportional pressure curve,

please select the control mode

according to the system

application.

017016

Before starting the electric pump, make sure the system is full of

liquid, air has been completely removed, and the inlet of the electric

pump must reach the minimum inlet pressure.

The electric pump is vented through the system, which must be

vented at the highest point. The air in the electric pump can be noisy,

which will disappear after a few minutes of operation.

6.Initial startup and operation

6.1 Before start

6.2 Evacuate the pump

6.3 Start-up products

Warning

018

Press Open the "Home" menu

019

6.4.3 "Home" 6.4.4 "Status"

6.4.5 "Settings"

Index

"Low flow indication"

The pump may experience low flow due to, for example, closed

valves.In the case of flow below 3m3/h, it will be displayed in the

"Home" menu due to the large measurement error of the pump's

algorithm. The speed is below the low flow indication indicating that

the pump is still running. When the flow is high enough for the pump

to measure, the "home" display will return to normal.

"Home"

This menu provides the following functions

- "Control Mode"

- "Set point"

- "Estimated Flow"

- "Head"

Index

"Home">"Status"

Press and turn the knob clockwise to enter the "Status"

This menu provides the following functions

- "Running Status"

- "Performance Parameter"

- "Warnings and Alarms"

Index

"Home">"Status"

Press and turn the knob clockwise to enter the "Status"

This menu provides the following functions

- "Running mode" - "Default set"

- "Control Mode" - "LCD off time"

- "Language set"

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