Drainex 300 - Pump ESPA - Free user manual and instructions

Product type	Submersible pump for dirty water
Brand	ESPA
Model	Drainex 300
Max. solid passage	60 mm
Max. liquid temperature	35 °C
Ambient temperature	0 °C to 40 °C
Storage temperature	-10 °C to 50 °C
Max. ambient humidity	95 %
Protection rating	IP68
Insulation class	F
Operating mode	Continuous (S1)
Power supply	Single-phase 230 V or three-phase 400 V depending on version
Motor power (P2)	Up to 1.25 HP (depending on version)
Power consumption (P1)	Up to 1.8 kW (depending on version)
Recommended electrical protection	30 mA residual current device and omnipolar disconnector
Main functions	Pumping dirty water, rainwater, wastewater, septic tank emptying
Routine maintenance	Disconnect before intervention; clean the impeller and suction filter; drain before frost
Safety	Do not run dry; do not insert objects into the suction; mandatory grounding
Repairability	Only an authorized ESPA Technical Service is allowed to disassemble the pump or change the cable
Spare parts	Contact the ESPA Technical Service

Frequently Asked Questions - Drainex 300 ESPA

What types of liquids can the Drainex 300 pump handle?

The Drainex 300 pump is designed to handle dirty water containing suspended solids, such as in septic tanks. The maximum solid passage is 60 mm. The water temperature must not exceed 35 °C.

How to install the pump correctly?

The pump must be fully submerged for proper cooling. Secure it so that the level float can move freely. Never support it by the power cable or pipes. Connect the discharge hose without kinking and install a non-return valve at the outlet.

What electrical protections are mandatory?

The installation must include an effective earth connection, a high-sensitivity residual current device (30 mA) and an omnipolar disconnector with a contact opening distance of at least 3 mm. Check that the voltage and frequency match the nameplate.

What to do if the pump does not start?

First check the power supply (fuses, residual current device). If the thermal protection has tripped, reset it or check the voltage. Also check the level probes and float. If the problem persists, contact the authorized Technical Service.

Why does the pump start and stop continuously?

This may be due to a blocked level float, discharge hose not connected, air pocket in the pump body, or a non-return valve installed upside down. Check each point and correct.

How to clean the impeller or unblock the pump?

First unplug the pump. To access the impeller, unscrew the screws on the feet of the suction head. Clean the impeller and suction filter. For the DRAINCOR model, use a 0.3 mm feeler gauge to align the impeller during reassembly.

Can the pump run dry?

No, the pump must never run dry. This would damage the motor and seals. Ensure it is always submerged as per figure 3 of the manual.

What maintenance is required during freezing periods?

In case of frost, it is imperative to drain the water from the pipes to prevent ice formation. If the pump is unused for a long time, remove it from the tank, clean it and store it in a dry, ventilated place.

How to dispose of the pump?

The pump does not contain toxic materials. For recycling, use the local waste collection service. As a last resort, return it to an authorized ESPA repairer.

Where to find the authorized Technical Service for my ESPA pump?

The list of Official Technical Services is available on the website www.espa.com. Only an authorized technician is allowed to change the power cable or perform internal repairs.

USER MANUAL Drainex 300 ESPA

DRAINEX 200/300 DRAINCOR

Technical line drawing of a portable electrical lamp with attached power outlet (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): Direttiva 2014/30/UE (Compatibilita elettro-magnetica): Standard EN 61000-6-1 y EN 61000-6-3 Norma EN 61000-6-1 e alla EN 61000-6-3
• Directive 2014/35/EU (Low voltage): Standard EN 60335-1, EN 60335-2-41
• Directive 2011/65/UE (Restriction of hazardous substances): Standard EN 50581.
• Direttiva 2006/42/CE (sicurezza della macchina): Norma EN 809 e alla EN 60204-1 lityDirettiva 2014/30/UE (Compatibilita elettro-magnetica): Norma EN 61000-6-1 e alla EN 61000-6-3
• Direttiva 2014/35/UE (Bassa Tensione): Norma EN 60335-1, EN 60335-2-41
• Direttiva 2011/65/UE (RoHS II): Norma EN 50581.

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 Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012. Standard BS 50581.

Banyoles, January 13th 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	Be careful with hazardous liquids and environments.
H	Do not carry the pump by the power cable.
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	The pump should only be dismantled by authorized personnel.
K	Cut out power supply before servicing pump.
L	Caution! Avoid icing.

Contents

Safety precautions....10

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

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

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....40
8. Illustrations....41

Safety precautions

This symbol

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

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

DANGER

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.

The DRAINEX models are used for the drainage of sewage water with particles in suspension, septic tanks, etc. Passage of particles in the DRAINEX 200 models = 45mm (MAX) and in the DRAINEX 300 models = 60mm (MAX).

The maximum water temperature is 35^ C.

All pumps have been manufactured in top quality material, submitted to strict hydraulic and electric controls.

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.

The pump cannot be used in a swimming-pool while there are people bathing.

Do not put your hand or any object into the suction or discharge mouth, since the rotating impeller could cause serious injury or damage.

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

3.1. Fixing

The pump must always be totally submerged which will provide it with the necessary cooling.

Ensure there is enough space for the free operation of the float switch (fig.3).

The pump must never be supported by the electric cable or the discharge line (fig.3).

3.2. Discharge pipe assembly

In cases in which the discharge run is lengthy or sinuous, we recommend using lines with a larger diameter than the discharge mouth, to avoid head loss due to friction as much as possible and to obtain the best hydraulic performance possible.

Install a check valve to the outlet of the pump and you will prevent pipe from emptying each time pump stops. The check valve must permit the passage of solids.

Ensure that the pipe is not bent and that is correctly secured to the outlet connection because, in addition to preventing the desired flow, proper pump operation will be hindered.

3.3. Electrical connection

The electrical installation must have an effective earth and comply with the national regulations in force.

The protection of the system will be based on a differential switch ( fn = 30mA ) in addition to a multi-pole isolator with a minimum 3 mm contact openings,

Pumps assembled with a starting control box or fitted with a capacitor are supplied ready for operation.

In the case of three-phase pumps the user must provide the protection system.

3.4. 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 is submerged as shown in Fig.3.

THIS PUMP MUST NEVER BE DRY RUN.

4. STARTING

If there is a line valve, open it completely.

Connect the electrical panel plug into a socket. If there is an appropriate level of water, the motor will immediately start up.

Check that the absorbed current is the same as marked on the name plate.

If the motor does not start or no water flows at the end of the line, try to find the anomaly using the troubleshooting guide in point 8.

In the case of three-phase pumps check that the turning direction corresponds to the direction marked by the arrow situated in the suction cone.

Contact with the rotating impeller may cause serious injury.

5. MAINTENANCE

Disconnect the pump from the mains before performing any operation whatsoever.

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

During frosty periods, remember to drain the line.

If the pump is not going to be operated for a long period of time, it is recommended to remove the tank, clean it and store it in a dry, well ventilated place.

To unclog or clean the impeller, it is only necessary to raise the suction cone. To do this, unscrew the screws that fasten the legs. The cover assembly must come off as a whole (fig.4).

On the DRAINCOR, a 0.3 mm gauge must be used when refitting to align the turbine with the suction base (fig.4). For correct alignment of the turbine, refer to the screws "A" marked on that drawing.

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.

1. PLATE SHOWING CHARACTERISTICS
   

DRAINCOR 200 400 50 000313/STD Q(l/min): 70-283 H(m): 18-2 400V 3~ 50Hz 12µF-450V IP68 ESPA 2025, S.L. 17820 Banyoles (MADE IN SPAIN) 2018W36-00003 P2: 1,25HP Hmin: 1m² Hmax: 22m² I: 3A P1: 1,8kW Tmax: 40°C 7 m Is.KLF S1 DESCRIPTION

1	Item reference
2	Voltage + frequency + item specifications
3	Flow
4	Pressure
5	Nominal voltage, no. stages, alternate current symbol and frequency
6	Capacitor (Single-phase model)
7	EC mark
8	Humidity protection level
9	Motor max. nominal output (P2)
10	Minimum working pressure
11	Maximum pressure
12	Year and week of manufacture + Pump serial number
13	Max. liquid temperature
14	Max. immersed depth
15	Electric pump unit absorbed power (P1)
16	Designated motor insulation
17	Continuous operation symbol
18	Maximum nominal intensity at nominal voltage
19	Name and address of vendor responsible for the product

8. POSSIBLE FAULTS, CAUSES AND SOLUTIONS

1) The pump does not start.
2) Pump runs but there is no flow.
3) Pump stops automatically.
4) Pump does not deliver rated capacity.

1	2	3	4	POSSIBLE PROBLEM	SOLUTIONS
X				Lack of electricity	Replace fuses or switch RCCB (30mA)
X		X		Improper thermal protection	Switch thermal protector or check that voltage is correct
X				Float switch disconnected	Wait for water level to be back to adequate level
X		X		Wet end blocked	Call Service Engineer
X				Blocked float switch	Check the free operation of the float switch
	X			Disconnected discharge pipe	Connect it and fix the discharge pipe correctly
	X			Air trapped at the pump body	Move the pump laterally to empty the air
	X			Check valve assembled way round	Assemble the valve correctly
	X			Pump partially covered of water	Submerge the pump or wait to have the suitable level
	X		X	Inlet filter obstructed	Clean the suction filter
			X	Total manometric head higher than expected	Check the geometric head and loss of head
			X	Impeller worn	Contact a Service Engineer
			X	Deteriorated discharge pipe	Replace it by a new one

9. TECHNICAL DATA

Liquid temperature... 4°C - 35°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 1.

6. AFVOEREN VAN HET PRODUCT

EN List of main components

① ② ③ E L 230V N ① ② ③ E R S 400V 230V T

1.	NEGRO	2.	AZUL	3.	MARRON
	BLACK		BLUE		BROWN
	NOIR		BLEU		MARRON
	SCHWARZ		BLAU		BRAUN
	NERO		AZZURRO		MARRONE
	PRETO		AZUL		CASTANHO
	ZWART		BLAUW		BRUIN
	ЧЕРНЫЙ		СИНИЙ		КОРИЧНЕВЫЙ
	أسود		أزرق		أسمر

Technical diagram showing a mechanical setup with a no-smoking symbol and dimension labels

35°C MAX.

Safety warning sign with no prohibition symbol and a cartoon chair illustration

A	B	C	D
E	F	G	H
I	J	K	L

ESPA 2025, S.L.

C/ Mieres, s/n - 17820 BANYOLES

GIRONA - SPAIN

www.espa.com

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