Grundfos APG.50.12.1 Installation And Operating Instructions Manual

Marca: Grundfos

Model: APG.50.12.1

Tip: Installation And Operating Instructions Manual

Acest manual este potrivit și pentru

GRUNDFOS INSTRUCTIONS

APG

Installation and operating instructions

www.motralec.com

Declaration of conformity

GB: EC declaration of conformity

We, Grundfos, declare under our sole responsibility that the product

APG, to which this declaration relates, is in conformity with these

Council directives on the approximation of the laws of the EC member

states:

— Machinery Directive (98/37/EC).

— Low Voltage Directive (2006/95/EC).

Standards used: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC Directive (89/336/EEC).

Standards used: EN 61000-6-2, EN 61000-6-3.

This EC declaration of conformity is only valid when published as part

of the Grundfos installation and operating instructions (publication

number 96434822 0912).

BG: EC декларация за съответствие

Ние, фирма Grundfos, заявяваме с пълна отговорност, че продукта

APG, за който се отнася настоящата декларация, отговаря на

следните указания на Съвета за уеднаквяване на правните

разпоредби на държавите членки на ЕС:

– Директива за машините (98/37/EC).

– Директива за нисковолтови системи (2006/95/EC).

Приложени стандарти: EN 60335-1:2002, EN 60335-2-41:2003.

– Директива за електромагнитна съвместимост (89/336/EEC).

Приложени стандарти: EN 61000-6-2, EN 61000-6-3.

Тази ЕС декларация за

съответствие е валидна само когато е

публикувана като част от инструкциите за монтаж и експлоатация

на Grundfos (номер на публикацията 96434822 0912).

DK: EF-overensstemmelseserklæring

Vi, Grundfos, erklærer under ansvar at produktet APG som denne

erklæring omhandler, er i overensstemmelse med disse af Rådets

direktiver om indbyrdes tilnærmelse til EF-medlemsstaternes

lovgivning:

— Maskindirektivet (98/37/EF).

— Lavspændingsdirektivet (2006/95/EF).

Anvendte standarder: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC-direktivet (89/336/EØF).

Anvendte standarder: EN 61000-6-2, EN 61000-6-3.

Denne EF-overensstemmelseserklæring er kun gyldig når den

publiceres som en del af Grundfos-monterings- og driftsinstruktionen

(publikationsnummer 96434822 0912).

DE: EG-Konformitätserklärung

Wir, Grundfos, erklären in alleiniger Verantwortung, dass das Produkt

APG, auf das sich diese Erklärung bezieht, mit den folgenden

Richtlinien des Rates zur Angleichung der Rechtsvorschriften der

EU-Mitgliedsstaaten übereinstimmt:

— Maschinenrichtlinie (98/37/EG).

— Niederspannungsrichtlinie (2006/95/EG).

Normen, die verwendet wurden: EN 60335-1:2002,

EN 60335-2-41:2003.

— EMV-Richtlinie (89/336/EWG).

Normen, die verwendet wurden: EN 61000-6-2, EN 61000-6-3.

Diese EG-Konformitätserklärung gilt nur, wenn sie in Verbindung mit der

Grundfos Montage- und Betriebsanleitung (Veröffentlichungsnummer

96434822 0912) veröffentlicht wird.

GR: ∆ήλωση συμμόρφωσης EC

Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι τα

προϊόντα APG, στα οποία αναφέρεται η παρούσα δήλωση,

συμμορφώνονται με τις εξής Οδηγίες του Συμβουλίου περί

προσέγγισης των νομοθεσιών των κρατών μελών της ΕΕ:

— Οδηγία για μηχανήματα (98/37/EC).

— Οδηγία χαμηλής τάσης (2006/95/EC).

Πρότυπα που χρησιμοποιήθηκαν: EN 60335-1:2002,

EN 60335-2-41:2003.

— Οδηγία Ηλεκτρομαγνητικής Συμβατότητας (EMC) (89/336/EOK).

Πρότυπα που χρησιμοποιήθηκαν: EN 61000-6-2, EN 61000-6-3.

Αυτή

η δήλωση συμμόρφωσης EC ισχύει μόνον όταν συνοδεύει τις

οδηγίες εγκατάστασης και λειτουργίας της Grundfos (κωδικός εντύπου

96434822 0912).

ES: Declaración CE de conformidad

Nosotros, Grundfos, declaramos bajo nuestra propia responsabilidad

que el producto APG, al cual se refiere esta declaración, está conforme

con las Directivas del Consejo en la aproximación de las leyes de los

Estados Miembros del EM:

— Directiva de Maquinaria (98/37/CE).

— Directiva de Baja Tensión (2006/95/CE).

Normas aplicadas: EN 60335-1:2002, EN 60335-2-41:2003.

— Directiva EMC (89/336/CEE).

Normas aplicadas: EN 61000-6-2, EN 61000-6-3.

Esta declaración CE de conformidad sólo es válida cuando se publique

como parte de las instrucciones de instalación y funcionamiento de

Grundfos (número de publicación 96434822 0912).

FR : Déclaration de conformité CE

Nous, Grundfos, déclarons sous notre seule responsabilité, que

le produit APG, auquel se réfère cette déclaration, est conforme aux

Directives du Conseil concernant le rapprochement des législations

des Etats membres CE relatives aux normes énoncées ci-dessous:

— Directive Machines (98/37/CE).

— Directive Basse Tension (2006/95/CE).

Normes utilisées: EN 60335-1:2002, EN 60335-2-41:2003.

— Directive Compatibilité Electromagnétique CEM (89/336/CEE).

Normes utilisées: EN 61000-6-2, EN 61000-6-3.

Cette déclaration de conformité CE est uniquement valide lors de sa

publication dans la notice d'installation et de fonctionnement Grundfos

(numéro de publication 96434822 0912).

HR: EZ izjava o usklađenosti

Mi, Grundfos, izjavljujemo pod vlastitom odgovornošću da je proizvod

APG, na koji se ova izjava odnosi, u skladu s direktivama ovog Vijeća

o usklađivanju zakona država članica EU:

— Direktiva za strojeve (98/37/EZ).

— Direktiva za niski napon (2006/95/EZ).

Korištene norme: EN 60335-1:2002, EN 60335-2-41:2003.

— Direktiva za elektromagnetsku kompatibilnost (89/336/EEC).

Korištene norme: EN 61000-6-2, EN 61000-6-3.

Ova EZ izjava o suklađnosti važeća je jedino kada je izdana kao dio

Grundfos montažnih i pogonskih uputa (broj izdanja 96434822 0912).

IT: Dichiarazione di conformità CE

Grundfos dichiara sotto la sua esclusiva responsabilità che il prodotto

APG, al quale si riferisce questa dichiarazione, è conforme alle

seguenti direttive del Consiglio riguardanti il riavvicinamento delle

legislazioni degli Stati membri CE:

— Direttiva Macchine (98/37/CE).

— Direttiva Bassa Tensione (2006/95/CE).

Norme applicate: EN 60335-1:2002, EN 60335-2-41:2003.

— Direttiva EMC (89/336/CEE).

Norme applicate: EN 61000-6-2, EN 61000-6-3.

Questa dichiarazione di conformità CE è valida solo quando pubblicata

come parte delle istruzioni di installazione e funzionamento Grundfos

(pubblicazione numero 96434822 0912).

HU: EK megfelelőségi nyilatkozat

Mi, a Grundfos, egyedüli felelősséggel kijelentjük, hogy a APG termék,

amelyre jelen nyilatkozik vonatkozik, megfelel az Európai Unió

tagállamainak jogi irányelveit összehangoló tanács alábbi előírásainak:

— Gépek (98/37/EK).

— Kisfeszültségű Direktíva (2006/95/EK).

Alkalmazott szabványok: EN 60335-1:2002,

EN 60335-2-41:2003.

— EMC Direktíva (89/336/EEC).

Alkalmazott szabványok: EN 61000-6-2, EN 61000-6-3.

Ez az EK megfelelőségi nyilatkozat kizárólag akkor érvényes, ha

Grundfos telepítési és üzemeltetési utasítás (kiadvány szám 96434822

0912) részeként kerül kiadásra.

www.motralec.com

Declaration of conformity

NL: EC overeenkomstigheidsverklaring

Wij, Grundfos, verklaren geheel onder eigen verantwoordelijkheid dat

het product APG waarop deze verklaring betrekking heeft, in

overeenstemming is met de Richtlijnen van de Raad in zake de

onderlinge aanpassing van de wetgeving van de EG lidstaten

betreffende:

— Machine Richtlijn (98/37/EC).

— Laagspannings Richtlijn (2006/95/EC).

Gebruikte normen: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC Richtlijn (89/336/EEC).

Gebruikte normen: EN 61000-6-2, EN 61000-6-3.

Deze EC overeenkomstigheidsverklaring is alleen geldig wanneer deze

gepubliceerd is als onderdeel van de Grundfos installatie- en

bedieningsinstructies (publicatienummer 96434822 0912).

PT: Declaração de conformidade CE

A Grundfos declara sob sua única responsabilidade que o produto

APG, ao qual diz respeito esta declaração, está em conformidade com

as seguintes Directivas do Conselho sobre a aproximação das

legislações dos Estados Membros da CE:

— Directiva Máquinas (98/37/CE).

— Directiva Baixa Tensão (2006/95/CE).

Normas utilizadas: EN 60335-1:2002, EN 60335-2-41:2003.

— Directiva EMC (compatibilidade electromagnética) (89/336/CEE).

Normas utilizadas: EN 61000-6-2, EN 61000-6-3.

Esta declaração de conformidade CE é apenas válida quando

publicada como parte das instruções de instalação e funcionamento

Grundfos (número de publicação 96434822 0912).

RU: Декларация о соответствии ЕС

Мы, компания Grundfos, со всей ответственностью заявляем,

что изделия APG, к которым относится настоящая декларация,

соответствуют следующим Директивам Совета Евросоюза об

унификации законодательных предписаний стран-членов ЕС:

— Механические устройства (98/37/ЕС).

— Низковольтное оборудование (2006/95/EC).

Применявшиеся стандарты: EN 60335-1:2002,

EN 60335-2-41:2003.

— Электромагнитная совместимость (89/336/ЕЭС).

Применявшиеся стандарты: EN 61000-6-2, EN 61000-6-3.

Данная декларация о соответствии ЕС имеет силу только в случае

публикации в составе

инструкции по монтажу и эксплуатации на

продукцию производства компании Grundfos (номер публикации

96434822 0912).

RO: Declaraţie de conformitate CE

Noi, Grundfos, declarăm pe propria răspundere că produsele APG,

la care se referă această declaraţie, sunt în conformitate cu aceste

Directive de Consiliu asupra armonizării legilor Statelor Membre CE:

— Directiva Utilaje (98/37/CE).

— Directiva Tensiune Joasă (2006/95/CE).

Standarde utilizate: EN 60335-1:2002, EN 60335-2-41:2003.

— Directiva EMC (89/336/CEE).

Standarde utilizate: EN 61000-6-2, EN 61000-6-3.

Această declarație de conformitate CE este valabilă numai când este

publicată ca parte a instrucțiunilor Grundfos de instalare și funcționare

(număr publicație 96434822 0912).

RS: EC deklaracija o usaglašenosti

Mi, Grundfos, izjavljujemo pod vlastitom odgovornošću da je proizvod

APG, na koji se ova izjava odnosi, u skladu sa direktivama Saveta

za usklađivanje zakona država članica EU:

— Direktiva za mašine (98/37/EC).

— Direktiva niskog napona (2006/95/EC).

Korišćeni standardi: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC direktiva (89/336/EEC).

Korišćeni standardi: EN 61000-6-2, EN 61000-6-3.

Ova EC deklaracija o usaglašenosti važeća je jedino kada je izdata kao

deo Grundfos uputstava za instalaciju i rad (broj izdanja 96434822

0912).

FI: EY-vaatimustenmukaisuusvakuutus

Me, Grundfos, vakuutamme omalla vastuullamme, että tuote APG,

jota tämä vakuutus koskee, on EY:n jäsenvaltioiden lainsäädännön

yhdenmukaistamiseen tähtäävien Euroopan neuvoston direktiivien

vaatimusten mukainen seuraavasti:

— Konedirektiivi (98/37/EY).

— Pienjännitedirektiivi (2006/95/EY).

Sovellettavat standardit: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC-direktiivi (89/336/ETY).

Sovellettavat standardit: EN 61000-6-2, EN 61000-6-3.

Tämä EY-vaatimustenmukaisuusvakuutus on voimassa vain, kun se

julkaistaan osana Grundfosin asennus- ja käyttöohjeita (julkaisun

numero 96434822 0912).

SE: EG-försäkran om överensstämmelse

Vi, Grundfos, försäkrar under ansvar att produkten APG, som omfattas

av denna försäkran, är i överensstämmelse med rådets direktiv om

inbördes närmande till EU-medlemsstaternas lagstiftning, avseende:

— Maskindirektivet (98/37/EG).

— Lågspänningsdirektivet (2006/95/EG).

Tillämpade standarder: EN 60335-1:2002, EN 60335-2-41:2003.

— EMC-direktivet (89/336/EEG).

Tillämpade standarder: EN 61000-6-2, EN 61000-6-3.

Denna EG-försäkran om överensstämmelse är endast giltig när den

publiceras som en del av Grundfos monterings- och driftsinstruktion

(publikation nummer 96434822 0912).

CN: EC 产品合格声明书

我们格兰富在我们的全权责任下声明，产品 APG，即该合格证所指之产

品，符合欧共体使其成员国法律趋于一致的以下欧共理事会指令：

– 机械设备指令 (98/37/EC)

– 低电压指令 (2006/95/EC)。

所用标准 : EN 60335-1:2002, EN 60335-2-41:2003。

– 电磁兼容性指令 (89/336/EEC)。

所用标准 : EN 61000-6-2, EN 61000-6-3。

本 EC 合格性声明仅在作为格兰富安装与操作指导手册（出版号

96434822 0912）的一部分时有效。

Bjerringbro, 15th August 2012

Jan Strandgaard

Technical Director

Grundfos Holding A/S

Poul Due Jensens Vej 7

8850 Bjerringbro, Denmark

Person authorised to compile technical file and

empowered to sign the EC declaration of conformity.

www.motralec.com

Declaration of conformity

Декларация о соответствии на территории РФ

Насосы серии APG сертифицированы на соответствие

требованиям Технического регламента о безопасности машин и

оборудования (Постановление правительства РФ от 15.09.2009

№753).

Сертификат соответствия:

№ C-DK.АИ30.B.02496, срок действия до 22.12.2016г.

Истра, 1 августа 2012 г.

Касаткина В. В.

Руководитель отдела качества,

экологии и охраны труда

ООО Грундфос Истра, Россия

143581, Московская область,

Истринский район,

дер. Лешково, д.188

www.motralec.com

English (GB)

English (GB) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

Page

1. Symbols used in this document

2. General description

2.1 Applications

Grundfos APG pumps are designed for pumping:

• wastewater

• sludge-containing water

• groundwater

• sewage from restaurants, hotels, camping sites,

etc.

The compact design makes the pumps suitable for

both temporary and permanent installation.

Furthermore, the pumps are suitable for free-

standing installation as well as installation on an

auto-coupling system.

The APG pumps are equipped with a cutter system

which cuts all destructible solids into small pieces so

that they can be led away through pipes of a

relatively small diameter.

2.1.1 Potentially explosive environments

Use the explosion-proof APG pump versions for

applications involving a risk of explosion.

2.2 Operating conditions

2.2.1 pH-value

APG pumps in permanent installations can cope with

pH-values ranging from 4 to 10.

2.2.2 Liquid temperature

Liquid temperature: 0 °C to +40 °C.

For short periods up to +60 °C.

2.2.3 Density of pumped liquid

Maximum density of pumped liquid: 1100 kg/m

2.2.4 Installation depth

Maximum 10 metres below liquid level.

1. Symbols used in this document

2. General description

2.1 Applications

2.2 Operating conditions

2.3 Sound pressure level

3. Safety

4. Transportation and storage

5. Installation

5.1 Installation on auto-coupling

5.2 Free-standing installation

5.3 Pumps with control box

5.4 Separate level controllers

6. Electrical connection

6.1 Motor protection

7. Start-up

7.1 Direction of rotation

8. Maintenance and service

8.1 Replacement of cutter head

8.2 Service kits

8.3 Oil

8.4 Contaminated pumps

9. Fault finding

10. Disposal

Warning

Prior to installation, read these

installation and operating instructions.

Installation and operation must comply

with local regulations and accepted

codes of good practice.

Warning

If these safety instructions are not

observed, it may result in personal

injury.

Warning

If these instructions are not observed,

it may lead to electric shock with

consequent risk of serious personal

injury or death.

Warning

These instructions must be observed

for explosion-proof pumps. It is

advisable also to follow these

instructions for standard pumps.

Caution

If these safety instructions are not

observed, it may result in malfunction

or damage to the equipment.

Note

Notes or instructions that make the job

easier and ensure safe operation.

Note

If you order an explosion-proof pump,

you will receive a pump not labelled

Grundfos.

We must emphasize that we comply

with all obligations with respect to

warranty and service of pumps sold by

Grundfos as APG pumps.

Note

The explosion classification of the

pumps is EEx de IIB T4. However, the

pumps must in each individual case be

approved for use at the desired

installation site by the local authorities.

www.motralec.com

English (GB)

2.2.5 Level of pumped liquid

The lowest stop level must always be above the top

of the pump housing.

2.2.6 Operation

Maximum 20 starts per hour.

2.3 Sound pressure level

The sound pressure level of the pump is lower than

the limiting values stated in the EC Council Directive

98/37/EEC relating to machinery.

3. Safety

4. Transportation and storage

The pump may be transported and stored in a

vertical or horizontal position. Make sure that it

cannot roll or fall over.

Always lift the pump by its carrying handle, never by

the motor cable or the hose/pipe.

For long periods of storage, the pump must be

protected against moisture and heat.

After a long period of storage, the pump should be

inspected before it is put into operation. Make sure

that the impeller can rotate freely. Pay special

attention to the shaft seals and the cable entry.

5. Installation

The extra nameplate supplied with the pump should

be fixed at the installation site.

Prior to installation, check the oil level in the oil

chamber. See section 8. Maintenance and service.

5.1 Installation on auto-coupling

See figures 1 and 2, pages 155 and 156, for pumps

up to and including 3.3 kW and fig. 4, page 158, for

pumps from 4.8 kW up to and including 9.2 kW.

Pumps for permanent installation can be installed on

a stationary auto-coupling and operated completely

or partially submerged in the pumped liquid.

1. Drill mounting holes for the guide rail bracket on

the inside of the pit, and fasten the guide rail

bracket provisionally with two screws.

2. Place the auto-coupling base unit on the bottom

of the pit. Use a plumb line to establish the

correct position. Fasten the auto-coupling base

unit with heavy-duty expansion bolts. If the

bottom of the pit is uneven, the auto-coupling

base unit must be supported so that it is level

when fastened.

3. Assemble the discharge line in accordance with

the generally accepted procedures and without

exposing the line to distortion or tension.

4. Insert the guide rails in the rings of the auto-

coupling base unit, and adjust the length of the

rails accurately to the guide rail bracket.

5. Unscrew the provisionally fastened guide rail

bracket, fit it on top of the guide rails, and finally

fasten it firmly to the pit wall.

6. Clean out debris from the pit before lowering the

pump into the pit.

7. Fit the auto-coupling half on the discharge port of

the pump. Then slide the guide bar of this

coupling half between the guide rails, and lower

the pump into the pit by means of a chain. When

the pump reaches the auto-coupling base unit,

the pump will automatically connect tightly.

8. Hang the end of the chain on a suitable hook at

the top of the pit.

9. Adjust the length of the motor cable by coiling it

up on a relief fitting so the cable is not damaged

during operation. Fasten the relief fitting to a

suitable bracket at the top of the pit. Make sure

that the cables are not sharply bent or pinched.

5.2 Free-standing installation

See figures 3 and 5, pages 157 and 158.

The APG.50.11.3 and APG.50.12.1 pumps have

pump housing and base stand cast in one piece for

free-standing installation.

The larger APG pumps should be provided with a

separate base stand.

For free-standing installation of the pumps, fit a 90 °

elbow on the discharge port. The pump can be

installed with a hose or rigid pipe and valves.

In order to facilitate service of the pump, fit a flexible

union or coupling to the discharge line for easy

separation.

If a hose is used, make sure that the hose does not

buckle, and that the inside diameter of the hose

matches that of the discharge port.

If a rigid pipe is used, the union or coupling, non-

return valve and isolating valve should be fitted in

the sequence mentioned, as seen from the pump

side.

Lower the pump into the liquid.

If the pump is installed in muddy conditions or on

uneven ground, we recommend placing the pump on

bricks.

Note

The pumps are designed for

intermittent operation only.

Warning

Pump installation in wells must be

carried out by specially trained

persons.

Caution

The guide rails must not have any axial

play as this would cause noise during

pump operation.

Caution

The end of the cable must not be

submerged, as water may penetrate

through the cable into the motor.

www.motralec.com

English (GB)

5.3 Pumps with control box

Pumps with a control box may be supplied with a

level switch with cable. The level switch cable should

be fastened in the retainer on the pump handle.

The level difference between start and stop may be

adjusted by adjusting the free length of cable

between the level switch and the retainer.

Large difference in level: long cable. Small difference

in level: short cable.

5.4 Separate level controllers

Three-phase APG pumps without control box or level

switch can be supplied with a separate level

controller with level switches: type LC for one-pump

installations and type LCD for two-pump

installations.

The LC controller is fitted with two or three level

switches. The third level switch, which is optional, is

for high-level alarm.

The LCD controller is fitted with three or four level

switches: one for common stop and two for start of

pumps. The fourth level switch, which is optional, is

for high-level alarm.

When installing the level switches, the following

points should be observed:

• To prevent air intake and vibrations, install the

stop level switch in such a way that the pump is

stopped before the liquid level falls to below the

top of the pump housing.

• Install the start level switch in such a way that the

pump is started at the required level. However,

the pump must always be started before the

liquid level reaches the bottom inlet pipe in the

pit.

• If installed, the high-level alarm switch should

always be placed about 10 cm above the start

level switch. However, alarm must always be

given before the liquid level reaches the pit inlet

pipe.

6. Electrical connection

The electrical connection of the pump should be

carried out in accordance with local regulations.

The operating voltage and frequency are stated on

the nameplate. Voltage tolerance: ± 10 % of the

voltage stated on the nameplate. Make sure that the

motor is suitable for the power supply available at

the installation site.

6.1 Motor protection

All pumps are supplied with 10 metres of cable and a

free cable end.

All single-phase pumps supplied without control box

must be connected to a separate control box with

motor starter and run capacitor. Furthermore, the

pumps must be connected to a starting capacitor.

For capacitor sizes, see the table below.

60 Hz

APG.50.12.1 has a thermal switch built into the motor

windings. The thermal switch cuts out the motor in

case of overtemperature and cuts it in again

automatically after cooling.

All 3-phase pumps supplied without control box must

be connected to a separate motor starter.

APG pumps of 4.8 kW and up are prepared for star-

delta starting, i.e. both ends of the motor windings

are accessible through the motor cable. See fig. 1.

• T1 and T3 are connected to the standard set of

temperature sensors.

• T1 and T2 are connected to the extra set of

temperature sensors in explosion-proof pumps.

• S1 and S2 are connected to a moisture sensor in

the oil chamber.

Note

To ensure correct operation of the

pump, make sure to adjust and fit the

level sensor correctly. Carry out a test

run of the pump after each adjustment

of the level sensor.

Pump type

Starting

capacitor

Run

capacitor

[μF] [V] [μF] [V]

APG.50.12.1 50 1 x 230 25 1 x 450

APG.50.18.1 80 1 x 230 40 1 x 450

APG.50.30.1 150 1 x 230 60 1 x 450

APG.50.33.1 150 1 x 230 60 1 x 450

www.motralec.com

English (GB)

6.1.1 Temperature sensors (in stator windings)

All pumps have integrated temperature sensors in

the stator windings. Via the safety circuit, the

temperature sensors will cut out the motor in case of

overtemperature, approx. 140 °C. The maximum

operating current of the temperature sensors is 0.5 A

at 500 VAC and cos φ 0.6.

Non-explosion-proof pumps only have one set of

temperature sensors.

Explosion-proof pumps have two sets of temperature

sensors. The extra set of sensors will open at a

temperature that is approx. 10 °C higher than the

opening temperature of standard sensors. The extra

set of sensors provides additional protection against

overtemperature in potentially explosive

environments.

The temperature sensors must be connected to the

safety circuit of the motor-protective circuit breaker

via the temperature relay (No 98123042). See fig. 2.

Figure 1 shows the electrical connection of a three-

phase, explosion-proof APG pump.

The temperature sensors are connected to the

monitoring cable and must be connected to the

separate thermistor relay fitted in the safety circuit of

the pump controller.

The temperature sensors of pumps above 1.6 kW

and three-phase motors are connected to the power

supply cable. To ensure automatic restart of the

motor when cooled (to ambient temperature), the

leads marked T1 and T3 must be connected to the

safety circuit. For explosion-proof versions, the same

applies to the leads marked T1 and T2.

Fig. 1 Wiring diagram, sensors

Temperature relay

Fig. 2 Wiring diagram, temperature relay

Warning

Separate motor-protective circuit

breakers/control boxes must not be

installed in potentially explosive

environments.

TM05 2157 4511

+10°C 140°C

U1PE

V1 V2 W1 W2 T1 T2 T3 S1 S2

TM05 3448 1312

.ȍ

.ȍ

A1/A2

T1/T2

13-14, 21-22

Tripped LED

EMT6-DB AUTO

L +

21 13

T2/T3

PTC

Power

Tripped

www.motralec.com

English (GB)

6.1.2 Moisture sensor

Applies only to APG.50.48, APG.50.65 and

APG.50.92.

Pumps with moisture sensor have a sensor in the oil

chamber between the motor and the pump housing.

Through the separate level relay (No 98123045), the

moisture sensor transmits a signal to the safety

circuit to trip the motor in case of ingress of moisture/

water into the pump. See fig. 3.

Fig. 3 Wiring, moisture relay

7. Start-up

Proceed as follows:

1. Check the oil level in the oil chamber.

2. Remove the fuses, and check whether the

impeller can rotate freely.

3. Check whether the monitoring units, if used, are

operating satisfactorily.

4. Check whether the system has been filled with

liquid and vented.

5. Make sure that the pump is submerged in the

liquid.

6. Open the isolating valves, if fitted.

7. Check the setting of the level switches.

8. Start the pump.

7.1 Direction of rotation

All single-phase pumps are factory-set to the correct

direction of rotation.

Before starting up three-phase pumps, check the

direction of rotation. The direction of rotation should

be clockwise when viewed from above. When

starting up, the pump will jerk in the opposite

direction of the direction of rotation. If the direction of

rotation is wrong, interchange two of the three

phases of the power supply.

Checking the direction of rotation

The direction of rotation should be checked every

time the pump is connected to a new installation.

Check the direction of rotation as follows:

1. Start the pump, and check the quantity of water

or the discharge pressure.

2. Stop the pump, and interchange two of the three

phases to the motor.

3. Start the pump, and check the quantity of water

or the discharge pressure.

4. Stop the pump.

5. Compare the results from points 1 and 3. The

phase connection which gives the larger quantity

of water or the higher pressure gives the correct

direction of rotation.

TM05 2304 4811

A1 15

18 16

B3B1 B2

Note

The pump may be started for a very

short period without being submerged

in order to check the direction of

rotation.

www.motralec.com

English (GB)

8. Maintenance and service

Before carrying out maintenance and service, make

sure that the pump has been thoroughly flushed with

clean water. Rinse the pump parts in water after

dismantling.

Normally operating pumps should be inspected at

least once a year. If the pumped liquid is very muddy

or sandy, inspect the pump at shorter intervals.

When the pump is new or after replacement of the

shaft seals, check the oil level after one week of

operation.

For long and trouble-free operation of the pump the

following points should be checked regularly:

• Power consumption

• Oil level and oil condition

If the oil contains water, it becomes greyish white

like milk. Water in the oil may be due to a

defective shaft seal. The oil should be replaced

after 3000 hours of operation. Use Shell Ondina

934 oil or a similar type of oil.

• Cable entry

Make sure that the cable entry is watertight and

that the cables are not bent sharply and/or

pinched.

• Pump parts

Check the impeller, pump housing, neck ring, etc.

for possible wear. Replace defective parts.

• Ball bearings

Check the shaft for noisy or heavy operation (turn

the shaft by hand). Replace defective ball

bearings. A general overhaul of the pump is

usually required in case of defective ball bearings

or poor motor function. This work must be carried

out by the manufacturer or a competent

workshop.

8.1 Replacement of cutter head

Remove the cutter head.

Fit the new cutter head as follows:

1. Knock guide pin (560) into cutter head (23).

2. Fit the cutter head with guide pin on impeller

(230). Fit and tighten screw (900.01).

3. Fit threaded pins (904) in suction cover (162).

4. Fit O-ring (412.01) in the suction cover, and

grease the cover.

5. Knock the suction cover into pump housing (101)

until the suction cover bears against the impeller.

Check through the inlet port.

6. Tighten all threaded pins (904) until they easily

touch pump housing (101).

7. Give all threaded pins a quarter of a turn.

8. Fasten the suction cover by means of screws

(914.01).

9. Fit cutting ring (50) to the suction cover. Fit and

tighten screws (900.02).

Warning

Before starting work on the product,

switch off the power supply. Make sure

that the power supply cannot be

accidentally switched on.

Warning

Make sure that all rotating parts have

stopped moving.

Warning

When unscrewing the inspection screw

of the oil chamber, please note that

pressure may have built up in the

chamber. Do not remove the screw

until the pressure has been fully

relieved.

Note

Used oil must be disposed of in

accordance with local regulations.

Pump type

Quantity of oil in

oil chamber [l]

APG.50.11 0.70

APG.50.12 0.70

APG.50.18 1.00

APG.50.19 1.00

APG.50.29 1.00

APG.50.30 1.00

APG.50.33 1.00

APG.50.48 1.90

APG.50.65 1.90

APG.50.92 1.90

www.motralec.com

English (GB)

Fig. 4 Exploded view

8.2 Service kits

8.3 Oil

1 litre of oil, type Shell Ondina 934.

Product number: 96003313.

8.4 Contaminated pumps

If Grundfos is requested to service the pump,

Grundfos must be contacted with details about the

pumped liquid, etc. before the pump is returned for

service. Otherwise Grundfos can refuse to accept

the pump for service.

Possible costs of returning the pump to the customer

are paid by the customer.

TM01 7812 4899

Pos. Component

23 Cutter head

50 Cutting ring

101 Pump housing

162 Suction cover

230 Impeller

560 Guide pin

412.01 O-ring

900.01 Screw

900.02 Screw

904 Threaded pin

914.01 Screw

The service kit for APG

pumps up to and

including 3.7 kW

includes:

1 shaft seal kit

1 O-ring kit

1 cable entry kit.

The service kit for APG

pumps of 4.8 kW and up

includes:

1 cutter kit

1 O-ring kit

1 shaft seal kit

1 cable entry kit.

50 Hz pumps

APG.50.09, 11 and 12 96003308

APG.50.09.3Ex and 11.1Ex 96003300

APG.50.17, 18 and 19 96003309

APG.50.19.3Ex 96003310

APG.50.31 96003311

APG.50.31.3Ex 96003310

APG.50.48.3(Ex) 96843315

APG.50.65.3(Ex) 96843315

APG.50.92.3(Ex) 96843315

APG.50.48.3(Ex) with

moisture sensor

96843315

APG.50.65.3(Ex) with

moisture sensor

96843315

APG.50.92.3(Ex) with

moisture sensor

96843315

60 Hz pumps

APG.50.11 and 12 96003308

APG.50.18 and 19 96003309

APG.50.29, 30 and 33 96003311

Caution

If used for a liquid which is injurious to

health or toxic, the pump will be

classified as contaminated.

www.motralec.com

English (GB)

9. Fault finding

10. Disposal

This product or parts of it must be disposed of in an

environmentally sound way:

1. Use the public or private waste collection service.

2. If this is not possible, contact the nearest

Grundfos company or service workshop.

Subject to alterations.

Warning

Before starting fault finding, switch off the power supply, and make sure that all rotating

parts have stopped moving. Make sure that the power supply cannot be accidentally

switched on.

Fault Cause Remedy

1. Motor does not start. Fuses

blow, or motor starter trips

immediately.

Caution: Do not start again!

a) Supply failure; short-circuit;

earth-leakage fault in cable or

motor winding.

Have the cable and motor checked

and repaired by a qualified

electrician.

b) Fuses blow as they are not

the right type.

Install fuses of the correct type.

c) Impeller blocked by impurities. Clean the impeller.

d) Level switch out of adjustment

or defective.

Check the level switch.

2. Pump operates, but motor

starter trips after a short while.

a) Low setting of thermal relay in

motor starter.

Set the relay in accordance with

the specifications on the

nameplate.

b) Increased current

consumption due to large

voltage drop.

Measure the voltage between

motor phases. Tolerance: ± 10 %.

c) Impeller blocked by impurities.

Increased current

consumption in all three

phases.

Clean the impeller.

3. Pump operates at below-

standard performance and

power consumption.

a) Impeller blocked by impurities. Clean the impeller.

Check the direction of rotation,

and, if necessary, interchange two

phases. See section 7.1 Direction

of rotation.

b) Wrong direction of rotation.

4. Pump operates, but supplies

no liquid.

a) Discharge valve closed or

blocked.

Check the discharge valve, and

open and/or clean, if necessary.

b) Non-return valve blocked. Clean the non-return valve.

Vent the pump.c) Air in pump.

www.motralec.com

Appendix

Appendix 1

Fig. 1

GB: One-pump installation on auto coupling HU: Egy szivattyú beép. automata csőkapcsolóval

BG:

Една помпа с автоматичен куплунг

NL: Eén pomp met voetbochtsnelkoppeling

DK: 1-pumpe-installation på autokobling PT: Uma bomba com acoplamento automático

DE: Ein-Pumpen-Anlage mit Kupplungsfußkrümmer RU:

Oдин насоc c автоматической муфтой

GR Εγκατάσταση μιάς αντλίας με αυτόματη ζεύξη RO:

1. Instalarea pompei pe dispozitivul de

autocuplare

ES Una bomba con autoacoplamiento RS:

Ugradnja jedne pumpe sa automatskom

spojnicom

FR:

Une pompe avec système d’accouplement

automatique

FI: Yhden pumpun asennus jalustaliittimellä

HR:

Instalacija s jednom crpkom na automatskoj

spojki

SE: En pump installerad med kopplingsfot

IT: Una pompa con accoppiamento rapido CN:

一台泵安装于自动耦合装置上

TM05 1635 3311

•

••

•

A4BC D E F G I J

∅600 ∅600 407 300 45 45 65 115 143

K L M N O P R T U V

150 400 200 300 700 500 - 1/2" 160 295

www.motralec.com

Appendix

Fig. 2

GB: Two-pump installation on auto coupling HU: Két szivattyús beép. automata csőkapcsolóval

BG: Две помпи с автоматичен куплунг NL: Tvee pompen met voetbochtsnelkoppeling

DK: 2-pumpe-installation på autokobling PT: Duas bombas com acoplamento automático

DE: Zwei-Pumpen-Anlage mit Kupplungsfußkrümmer RU: Два насоса с автоматической муфтой

GR Εγκατάσταση δύο αντλιών με αυτόματη ζεύξη RO:

2. Instalarea pompei pe dispozitivul de

autocuplare

ES Dos bombas con autoacoplamiento RS:

Ugradnja dveju pumpi sa automatskom

spojnicom

FR:

Deux pompes avec système d’accouplement

automatique

FI: Kahden pumpun asennus jalustaliittimellä

HR: Instalacija s dvije crpke na automatskoj spojki SE: Två pumpar installerade med kopplingsfot

IT: Due pompe con accoppiamento rapido CN:

两台泵安装于自动耦合装置上

TM01 2607 2098

‹

P R P

A B C D E F G I J

455 600 407 135 45 45 65 115 143

K L M N O P R T U V

150 400 200 300 700 335 330 ½” 160 295

www.motralec.com

Appendix

Fig. 3

GB: Free-standing Installation HU: Telepítési méretek hozdozható kivitel esetén

BG: Свободен монтаж NL: Vrijstaande opstelling

DK: Fritstående installation PT: Instalação autónoma

DE: Freistehende Aufstellung RU: Свободная установка насоса

GR Ανεξάρτητη εγκατάσταση RO: Instalare liberă

ES Instalación portátil RS: Slobodnostojeća ugradnja

FR: Installation fixe sur socle FI: Vapaasti seisova asennus

HR: Samostojeća instalacija SE: Fristående installation

IT: Installazione su piede d’appoggio CN:

独立（潜水）安装

TM01 2603 3311

APG A B C D E S

APG, 50 Hz

APG.50.09.3 497 304 130 90 207 R 2

APG.50.09.3Ex 497 304 130 90 207 R 2

APG.50.11.1 497 304 130 90 207 R 2

APG.50.11.1Ex 497 304 130 90 207 R 2

APG.50.17.3 618 405 191 150 265 R 2

APG.50.18.1 618 405 191 150 265 R 2

APG.50.19.3 618 405 191 150 265 R 2

APG.50.19.3Ex 618 405 191 150 265 R 2

APG.50.31.3 655 408 191 150 265 R 2

APG.50.31.3Ex 655 408 191 150 265 R 2

www.motralec.com

Appendix

Fig. 4 Fig. 5

APG A B C D E S

APG, 60 Hz

APG.50.11.3 450 304 133 90 207 R 2

APG.50.12.1 450 304 133 90 207 R 2

APG.50.18.1 620 408 191 150 265 R 2

APG.50.19.3 620 408 191 150 265 R 2

APG.50.29.3 751 408 191 150 265 R 2

APG.50.30.1 751 408 191 150 265 R 2

APG.50.33.1 751 408 191 150 265 R 2

TM01 4618 3311

1 1/2"

170

DN50 PN10

300

270

ø15

210

TM01 5053 0508

150

H A

DN50 PN10

ø410

Pump type A D E F G H U V X Y

APG.50.48.3(Ex) 618 193 357 210 297 147 786 182 562 729

APG.50.65.3(Ex) 618 193 357 210 297 147 786 182 562 729

APG.50.92.3(Ex) 691 193 357 210 297 147 789 182 562 729

www.motralec.com

Grundfos APG.50.12.1 Installation And Operating Instructions Manual

Marca: Grundfos

Model: APG.50.12.1

Tip: Installation And Operating Instructions Manual

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English: Grundfos APG.50.12.1

Grundfos APG.50.12.1 Installation And Operating Instructions Manual

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