VE 121N - Pump ESPA - Free user manual and instructions

Product type	Vertical multistage centrifugal pump
Brand	ESPA
Model	VE 121N
Supply voltage	230/400 V
Frequency	50 Hz
Rated power (P2)	3 kW
Flow rate	33 - 217 l/min
Head	98 - 32 m
Maximum pressure	103 mCE
Minimum working pressure	32 mCE
Motor speed	2800 rpm
Minimum efficiency index (MEI)	≥ 0.40
Liquid temperature	4°C - 40°C
Ambient temperature	0°C - 40°C
Storage temperature	-10°C - 50°C
Maximum relative humidity	95%
Motor class	Class I
Main functions	Clean water pumping, indoor use, water supply, boosting
Maintenance and cleaning	No normal maintenance required; clean with a damp cloth without aggressive products; drain pipes during freezing periods
Safety	30 mA residual current device recommended; mandatory grounding; never run dry
Spare parts and repairability	Repair only by approved technical service; consult www.espa.com
Disposal	No toxic materials; recycle via local collection or return to approved repairer
Standards and certifications	CE; 2006/42/EC, 2014/30/EU, 2014/35/EU, 2009/125/EC, 2012/19/EU, 2011/65/EU

Frequently Asked Questions - VE 121N ESPA

Why doesn't the motor start?

Check that the voltage and frequency match the nameplate. Make sure the pump is not blocked and that the fuse or thermal circuit breaker has not tripped. If the problem persists, contact an approved technical service.

What to do if the pump does not provide pressure?

Check if the total head exceeds the expected value, if the foot valve is obstructed, or if the pump is not properly primed. Ensure the rotation direction is clockwise (viewed from the fan).

How to prime the pump?

Fill the pump body with water through the vent plug. If a foot valve strainer is installed, also fill the suction pipe. Never run the pump dry.

The flow rate is insufficient, what should be checked?

Check the water level drop, wear of impellers, possible air intake in fittings, or if the suction head is too high. Also check that the voltage is correct.

The motor overheats abnormally, what are the causes?

This may be due to poor ventilation of the room, incorrect voltage, excessive head, or a blocked pump. Ensure good ventilation and check the electrical values.

How to install the pump?

Place the pump on a solid, horizontal base, anchor it with the provided screws. Use suction and discharge pipes of appropriate diameter, with a minimum upward slope of 2% for suction. Connect the power supply via an omnipolar switch with a contact opening distance of at least 3 mm.

What are the electrical safety precautions?

Install a high-sensitivity residual current device (30 mA). Ground the pump. Use a compliant power cable (type H05 RN-F). Have the connections made by an approved installer.

What to do in case of freezing?

Drain the pipes to prevent ice formation. Cut off the power supply before any intervention. If the pump remains unused for a long time, disassemble it and store it in a dry, ventilated place.

How to maintain the pump?

Under normal conditions, no maintenance is necessary. Clean the exterior with a damp cloth without aggressive products. For any breakdown, contact an approved technical service (list on www.espa.com).

How to dispose of the pump at end of life?

The pump does not contain toxic materials. Disassemble it and recycle the components via the local waste collection service or return it to an ESPA approved repairer.

USER MANUAL VE 121N ESPA

Technical line drawings of two vertical cylindrical industrial pumps with mounting flanges and internal components (no text or symbols)

EN Instruction manual.... 10 (Translation from the original Spanish)

EN: EVIDENCE OF CONFORMITY

We declare, under our responsibility, that the products in this manual comply with the following directives and standards:

• Directive 2006/42/EC (Machine Security): Standard EN 809 and EN 60204-1
• Directive EMC 2014/30/EU (Electromagnetic compatibility): Standard EN 61000-6-1 y EN 61000-6-3
• Directive 2014/35/EU (Low voltage): Standard EN 60335-1 andre EN 60335-2-41
• Directive 2009/125/EC (ecological design): Regulation (EU) 2019/1781 electrical motors and variable speed drives. Standard EN 60034-30. Regulation 547/2012 for Hydraulic pumps. Standard EN 16480
• Directive 2012/19/EU (on waste electrical and electronic equipment (WEEE)): Standard EN 50419:2006 about marking of electrical and electronic equipment.
• Directive 2011/65/UE (Restriction of hazardous sustances): Standard EN 50581.

FR : DECLARATION DE CONFORMITÉ

EVIDENCE OF CONFORMITY

We declare, under our responsibility, that the products in this manual comply with the following directives and standards:

• Supply of Machinery (Safety) Regulations 2008: Standard BS 809 and BS 60204-1
• Electromagnetic Compatibility Regulations 2016: Standard BS 61000-6-1 and BS 61000-6-3.
• Electrical Equipment (Safety) Regulations 2016: Standard BS 60335-1 and BS 60335-2-41.
• The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019: Standard BS 60034-30.
• The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012. Standard BS 50581.

Banyoles, January 7th 2021

Josep Unyó (Technical Manager)

ESPA 2025, SL

Ctra. de Mieres, s/n – 17820 Banyoles

Girona - Spain

Damage prevention and safety instructions (See figure 5)

A	Warning! Observe limitations of use.
B	The name plate voltage must be the same as the mains voltage.
C	Connect the pump to the mains via an omnipolar switch with at least a 3 mm opening between contacts.
D	Install a high-sensitivity differential switch (0.03A) as extra protection against lethal electric shocks.
E	Connect the pump to the ground.
F	Use pump only within performance limits indicated or the name plate.
G	Remember to prime pump.
H	Check for motor self-ventilation.
I	This apparatus may be used by children 8 years or older and persons with reduced physical, sensory or mental capacities, or lacking experience and knowledge, if they are supervised or receive adequate training on the safe use of the apparatus and understand the dangers.Children should not be allowed to play with the apparatus.Children should not perform the ordinary cleaning and maintenance tasks without supervision.
J	Be careful with hazardous liquids and environments.
K	Caution! Look out for accidental leaks.Do not expose pump to bad weather.
L	Caution! Avoid icing.Cut out power supply before servicing pump.

Contents

Safety precautions....10

1. General information....11
2. Handling....11
3. Installation ....11

3.1. Fixing....11
3.2. Suction pipe assembly .....11
3.3. Discharge pipe assembly 11
3.4. Electrical connection .....12
3.5. Pre-start checks 12

1. Starting 12
2. Maintenance 12
3. Disposing of the product....12
4. Nameplate 12
5. Possible faults, causes and solutions....13
6. Technical data 13
7. List of main components....44
   11.Wiring diagrams....45
8. Illustrations....46

Safety precautions

This symbol

together with one of the

following words “Danger” or “Warning” indicates the risk level deriving from failure to observe the prescribed safety precautions:

DANGER

risk of

electric

shock

DANGER

Warns that failure to observe the pre cautions involves a risk of electric shock.

Warns that failure to observe the pre cautions involves a risk of damage to persons and/or things.

WARNING

Warns that failure to observe the pre cautions involves the risk of damaging the pump and/or the facility

1. GENERAL INFORMATION

Please observe the following instructions to achieve the best pump performance possible and a trouble free installation.

Read these instructions before installing the pump. Save them for future reference.

These are vertical multistage centrifugal pumps having more than one impeller assembled in-line. The same flow passes through each impeller but the pressure increases each time, i.e. more impellers, more pressure.

These pumps are designed to operate with clean water, free from particles in suspension and with a maximum temperature of 40^ C.

Correct pump operation is assured providing the instructions on electrical connection, installation and use are strictly adhered to.

Failure to adhere to the instructions can result in premature failure of the pump and voiding of the warranty.

Minimum efficiency index

With the application of the European Regulation 547/2012, the minimum efficiency index after 01/01/2015 must be MEI ≥ 0.40.

The reference value for the most efficient hydraulic pumps is rated at MEI ≥ 0.70.

The performance curves and efficiency characteristics can be checked on the technical catalogues and on www.espa.com.

The operation of this hydraulic pump with variable operating points can be cheaper and more efficient when controlled with, for example, a speed regulation control that adjusts the pump's operation to the system performance.

The efficiency reference criteria can be found on the following link:

http://global.espa.com/doc-descarrega-1/fingerprints.pdf

2. HANDLING

The pumps are supplied suitably packaged to prevent damage in transit. Before unpacking, check that the packaging has not been damaged or deformed,

Lift and handle the product with care and with the right tools.

3. INSTALLATION

These pumps are designed for indoor use. Make sure that pump is never submerged and that it rests in a dry and well aired room.

Ensure the correct hydraulic positioning with the supplied tool. (See fig.4).

3.1. Fixing

The pump should be installed on a solid, horizontal base, secured by screws or bolts and using the existing holes in the mount.

3.2. Suction pipe assembly

The suction pipe, if longer than 7 meters, must be of the same or greater diameter than the pump inlet and installed in an upward inclination to prevent trapped air pockets forming.

If the pump is required to perform a suction lift, to avoid unnecessary losses of head on the discharge side, the pump should be installed as close as possible to the water.

The end of the suction pipe must always remain, at least, 50 cm below the water level. (Fig.2)

3.3. Discharge pipe assembly

It is recommended to use pipes with a diameter equal or greater than the pump outlet. This will reduce loss of head caused by friction in longer pipe runs.

Pipework must be supported and their weight must not rest on the pump.

If a foot valve has not been installed it is recommended to fit a check valve to prevent accidental draining down of the system.

3.4. Electrical connection

The electrical installation must have a multi-pole isolator with minimum 3 mm contact openings. The protection of the system will be based on a differential switch ( fn = 30 mA )

The power cable must correspond at least to the type H05 RN-F (according to 60245 IEC 57) and having terminals.

The connection and its dimensioning must be performed by a qualified installer according to the needs of the facility and following the regulations in force in each country.

The motors are not thermally protected. They must be connected to a motor-protective circuit breaker that can be adjusted manually. Set the circuit breaker according to the current given in the rating plate plus 10%.

Follow instructions given on fig.1 for correct electrical connection.

3.5. Pre-start checks

Ensure the voltage and frequency of the supply corresponds to the values indicated on the electrical data label.

Ensure that the pump shaft is rotating freely.

Fill the pump body with water through the self-priming plug opening. If a foot valve has been installed, also fill the suction pipe.

Check all joints and connections for leaks.

THIS PUMP MUST NEVER BE DRY RUN.

4. STARTING

Ensure all valves in the pipework are open.

Connect power supply. There will be a delay before water appears at the end of the discharge pipe.

Viewings from the fan ensure that the rotation of the motor is clockwise. On three phase pumps the motor may rotate anticlockwise. If this is happening, the flow will be lower than expected. To rectify this situation the two supply phases need to be reversed.

Ensure that the absorbed current is the same or lower than the maximum shown on the nameplate.

Adjust the thermal relay if is necessary.

If the pump fails to operate refer to the possible faults, causes and solutions list for assistance.

5. MAINTENANCE

Under normal conditions these pumps require no special or planned maintenance.

Clean the pump with a damp cloth without using harsh products.

If the pump is not to be operated for a long period it is recommended to remove it from the installation, drain down and store in a dry, well ventilated place.

ATTENTION: In the event of faults or damage occurring to the pump, repairs should only be carried out by an authorised service agent.

The Official Technical Services list is in www.espa.com.

6. DISPOSING OF THE PRODUCT

When the pump is eventually disposed of, please note that it contains no toxic or polluting material. All main components are material identified to allow selective disposal.

This product or parts of it must be disposed of in an environmentally sound way, use the waste collection service. If this is not possible, contact the nearest ESPA service workshop.

7. PLATE SHOWING CHARACTERISTICS

VE94 10 230/400 50 000093/STD 2019W14-00003 Q(l/min): 33-217 H(m): 98-32 Tmax: 40°C Hmin: 32m Hmax: 103m 2800 min.⁻¹ Motor 3kW 50Hz MEI ≥ 0,40 (η= -.) CE ESPA 2025, S.L. 17820 Banyoles (MADE IN SPAIN) Is.KL.F S1 15 9 10 11 12 13 14

DESCRIPTION

1	Item reference
2	Voltage + frequency + item specifications
3	Flow
4	Minimum working pressure
5	Motor max. nominal output (P2) and frequency
6	EC mark
7	Pressure
8	Maximum pressure
9	Year and week of manufacture + Pump serial number
10	Max. liquid temperature
11	Engine rotation speed
12	Minimum Efficiency Index
13	Designated motor insulation
14	Continuous operation symbol
15	Name and address of vendor responsible for the product

8. POSSIBLE FAULTS, CAUSES AND SOLUTIONS

1) The motor does not start.
2) Motor operates but there is no pressure.
3) Motor over-heating.
4) Pump does not deliver rated capacity.
5) Motor starts and stops automatically.
6) Shaft rotates with difficulty.

1	2	3	4	5	6	POSSIBLE PROBLEM	SOLUTIONS
X				X		Pump blocked	Disconnect it and take it to the official Technical Service
			X			Foot valve clogged	Clean it or replaced by new one
	X		X			Total head higher than expected	Verify geometric head and loss of head
X		X		X		Wrong tension	Check that the tension is the same as that on the name plate
	X		X			Water level in well or tank has come down	Verify suction head
X						Fuse or thermal relay disconnected	Change fuse or thermal relay
	X		X			Impellers are worn out	Disconnect pump and take it to your Service Dealer
	X					Foot valve not submerged	Be sure suction pipe is submerged
	X					Pump was not primed	Fill pump body with water
		X		X		Room not properly aired	Provide good ventilation
	X					Air entry	Seal unions and joints properly

9. TECHNICAL DATA

Liquid temperature: 4°C - 40°C

Ambient temperature: 0°C - 40°C

Storage temperature: -10°C - 50°C

Ambient relative humidity, max.: 95%

Motor class I.

Other data see Figure 3.

6. AFVOEREN VAN HET PRODUCT

Technical cross-sectional diagram of a mechanical device with numbered components for identification.

	ES	EN	FR	DE	IT
1	Adaptador	Adapter	Lanterne	Passfeder	Lanterna
2	Tapón de carga + aro tórico	Fill plug + OR	Bouchon de remplissage + joint torique	Füllstopfen + O-ring	Tappo di carico + OR
3	Rodete	Impeller connector	Roue	Läufer	Girante
4	Difusor	Diffuser	Diffuseur	Diffusor	Diffusore
5	Envoltura	Sleeve	Chemise	Gehäuse	Camicia
6	Cuerpo bomba	Pump body	Corps de pompe	Pumpengehäuse	Corpo pompa
7	Contrabrida + empaquetadura	Counterflange + gasket	Contre-bride + joint torique	Gegenflansche + Dichtung	Controflangia + guarnizio
8	Kit par de semijuntas	Coupling kit	Kit paire de demimanchons	Kupplungssatz	Kit coppia di semigiunti
9	Retén mecánico	Mechanical seal	Garniture mécanique	Rückhalter	Tenuta meccanica
10	Árbol	Shaft	Arbre	Welle	Albero
11	Tirante	Tie rod	Tirant	Zugstange	Tirante
12	Tapón de descarga + aro tórico	Drain plug + OR	Bouchon de vindage + joint torique	Ablassstopfen + O-ring	Tappo di scarico + OR

	PT	NL	RU	ZH	AR
1	Adaptador	Adapter	Кожух соединительной муфты	適配器	محول
2	Tampão de enchimento + OR	Vulplug + OR	Заливная пробка+O-обр. кольцо	填寫插頭 + O型圖	شعل قابس + یا خاتم
3	Impulsor	Waaier	Рабочее колесо	叶轮	المکرو
4	Difusor	Diffusor	Диффузор	扩散器	الناشر
5	Camisa	mouw	Гильза	套	ام
6	Corpo da bomba	Pomplichaam	Корпус насоса	泵體	جسم المنsectة
7	Contraflange + vedante	contra-flens + pakking	Ответный фланец+прокладка	反法圖 + 垫片	مکفحة شثة + ملوقا
8	Kit par de semi-juntas	Koppeling kit	Соединительная муфта	偶聯試剤盒	ahanم اقتران
9	Retentor mecânico	Mech. afdichting	Торцевое уплотнение	机械密封	ختم الميكانيكية
10	Veio	schacht	Вал	軸	رح
11	Tirante	trekstang	Шпилька	拉桿	ال lbadal قضيب
12	Tampão de descarga + OR	Aftapplug + OR	Сливная пробка+O-обр. кольцо	排放塞 + O型圈	استتراف قابس + یا خاتم

Fig.1 / Abb.1 / Afb.1 / Puc.1 / 图 1 / 1

ALIMENTACIÓN MONOFÁSICA SINGLE PHASE SUPPLY ALIMENTATION MONOPHASÉE EINPHASENSTROM ALIMENTAZIONE MONOFASICA ALIMENTAÇÃO MONOFASICA EENFASIGE VOEDING ОДНОФАЗНОЕ ПОДКЛЮЧЕНИЕ

單相交貨

Electrical schematic symbols and component labels for a circuit or measurement device, including schematic symbols and terminal connections.

Fig.2 / Abb.2 / Afb.2 / Puc.2 / 图 2 / 2

BOCA ASPIRACION SUCTION PORT ORIFICE D'ENTR E ENTRITT S. FFNUNGEN BOCCHIE D'INGRESSO BOCA DE ENTRADA 入水處 (منخل الشفط (السحب) ВСАСИВАЮЩЯ ПАТРУБОК) BOCA ASPIRACION SUCTION PORT ORIFICE D'ENTR E ENTRITT S. FFNUNGEN BOCCHIE D'INGRESSO BOCA DE ENTRADA 入水處 (منخل الشفط (السحب) ВСАСИВАЮЩЯ ПАТРУБОК) BOCA IMPULSION DISCHARGE PORT ORIFICE DE SORTIE AUSTRITT S. FFNUNGEN BOCCHIE DI MANDATA BOCA DE SAIDA 出水處 (مدخل الضخ (التاريخ) НАЧЕТАТЕЛЬНЫЙ ПАТРУБОК) BOCA IMPULSION DISCHARGE PORT ORIFICE DE SORTIE AUSTRITT S. FFNUNGEN BOCCHIE DI MANDATA BOCA DE SAIDA 出水處 (مدخل الضخ (التاريخ) НАЧЕТАТЕЛЬНЫЙ ПАТРУБОК)

Fig. 3
Abb. 3
Afb. 3
Рис. 3
图3
3 الشكل

R. 11/2" Gas Ø 14 95 100 130

DIN 2558 A-40

DIN 2566 C-40

DIN 2566 C-50

VE 94

190 155 155 190 Ø12

VE 121

Ø15 215 250 130 210

C B A H1 D C B A H2 D

50 Hz	Q max. [l/min]	H max. [m]	P max. [MPa]	Pa max. [MPa]	A 1~220V	A 3~400V	C μF	P1 [kW]	IP	dBa ± 2	A [mm]	B [mm]	C [mm]	D [mm]	H1 [mm]	H2 [mm]	Fig.2	T kg
VE94 4	217	42	1,2	0,78	8,6	2,6	25	1,60	54	72	412	647	156	200	50	-	A-40	33,0
VE94 5	217	52	1,2	0,68	8,6	3,5	40	2,00	54	72	450	700	176	200	50	-	A-40	35,5
VE94 6	217	61	1,2	0,59	11	3,9	40	2,30	54	72	486	738	176	200	50	-	A-40	36,5
VE94 7	217	71	1,2	0,49	-	4,5	-	2,70	54	72	525	800	176	200	50	-	A-40	45,0
VE94 8	217	80	1,2	0,40	-	5,2	-	3,00	54	72	563	838	176	200	50	-	A-40	47,0
VE94 9	217	91	2,0	1,09	-	6,5	-	3,60	54	73	629	937	194	280	-	80	C-40	60,0
VE94 10	217	103	2,0	0,97	-	6,9	-	3,90	54	73	666	974	194	280	-	80	C-40	61,0
VE94 11	217	115	2,0	0,85	-	7,2	-	4,40	54	73	703	1010	194	280	-	80	C-40	62,0
VE94 12	217	122	2,0	0,78	-	8,3	-	4,80	54	74	742	1048	194	280	-	80	C-40	65,0
VE94 13	217	130	2,0	0,70	-	8,6	-	5,00	54	74	780	1086	194	280	-	80	C-40	68,0
VE94 14	217	140	2,0	0,60	-	9,4	-	5,50	54	74	816	1134	220	280	-	80	C-40	84,0
VE121 2 N	500	35	1,2	0,85	-	6,0	-	3,00	54	81	470	776	195	300	-	90	C-50	73,0
VE121 3 N	500	50	1,2	0,70	-	7,0	-	4,20	54	81	522	847	195	300	-	90	C-50	80,0
VE121 4 N	500	66	1,2	0,54	-	10,1	-	5,50	54	81	574	943	220	300	-	90	C-50	97,0
VE121 5 N	500	84	1,2	0,36	-	11,8	-	6,80	54	83	626	995	220	300	-	90	C-50	99,0
VE121 6 N	500	100	1,2	0,20	-	14,6	-	7,80	54	83	678	1085	220	300	-	90	C-50	107,0
VE121 7 N	500	116	1,2	0,04	-	16,5	-	9,20	54	83	730	1137	220	300	-	90	C-50	116,0
VE121 8 N	500	133	2,0	0,67	-	19,5	-	10,60	54	83	782	1189	220	300	-	90	C-50	117,0
VE121 9 N	500	147	2,0	0,53	-	21,0	-	13,80	54	84	834	1241	220	300	-	90	C-50	124,0
VE121 10 N	500	160	2,0	0,40	-	23,0	-	15,00	54	84	886	1293	220	300	-	90	C-50	125,0

60 Hz	Q max. [l/min]	H max. [m]	P max. [MPa]	Pa max. [MPa]	A 3~440V	P1 [kW]	IP	dBa ± 2	A [m]	B [mm]	C [mm]	D [mm]	H1 [mm]	H2 [mm]	Fig.4	T_ [kg]
VE94 5	240	74	1,2	0,46	5,5	3,3	54	72	450	726	176	200	50	-	A-40	37,0
VE94 6	240	90	2,0	1,10	8,1	4	54	72	517	821	164	280	-	80	C-40	49,0
VE94 7	240	104	2,0	0,96	8,1	4,5	54	72	554	858	194	280	-	80	C-40	50,0
VE94 8	240	120	2,0	0,80	9,5	5,4	54	72	591	895	194	280	-	80	C-40	55,0
VE94 9	240	135	2,0	0,65	10,3	5,9	54	73	629	933	194	280	-	80	C-40	56,0
VE94 10	240	150	2,0	0,50	13,1	6,9	54	73	666	994	218	280	-	80	C-40	65,0
VE94 11	240	160	2,0	0,40	13,1	7,8	54	73	704	1032	218	280	-	80	C-40	68,5
VE121 2 N	600	50	2,0	1,50	8,0	4,7	54	81	470	776	195	300	-	90	C-50	63,5
VE121 3 N	600	74	2,0	1,26	12,0	7,0	54	81	522	847	195	300	-	90	C-50	69,7
VE121 4 N	600	100	2,0	1,00	17,0	9,5	54	81	574	943	220	300	-	90	C-50	82,3
VE121 5 N	600	124	2,0	0,76	20,0	11,5	54	83	626	995	220	300	-	90	C-50	95,0
VE121 6 N	600	153	2,0	0,47	24,0	14,0	54	83	678	1085	220	300	-	90	C-50	101,0
VE121 7 N	600	174	2,0	0,26	25,0	17,0	54	83	730	1137	220	300	-	90	C-50	121,0

Diagram showing a motor connected to an open booklet labeled ABC, with a person icon and directional arrow indicating rotation or transformation.

A

230 V F 230 V

B

Diagram showing electrical hazard symbol and circuit components with labels 'OFF' and warning symbols

C

Diagram showing electrical hazard symbol and circuit components with labeled switches and indicators

D

Diagram showing a motor with a warning symbol and electrical symbols, indicating a hazard or hazard.

E

H. max. 333 min.111 Q. max. 333 min.111

F

Diagram showing electrical circuit components with ON/OFF warning symbol and warning triangle

G

Diagram of an electric motor with a crossed-out valve and no visible text or symbols

H

Simple line drawing of a room with a person walking and a person standing near a door, featuring a lock and wall-mounted device (no text or symbols)

I

CHEMICAL NO

]

Safety warning illustration showing a person disinfecting an industrial pipe with a 'No' symbol below

K

Diagram of an electrical circuit with labeled components including a test tube, warning symbol, and OFF button

L

ESPA 2025, S.L.

C/ Mieres, s/n - 17820 BANYOLES

GIRONA - SPAIN

www.espa.com

QR code image containing encoded data, no visible human-readable text