Economy MHI 404 (3~400 V, EPDM) | Wilo

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Economy MHI 404 (3~400 V, EPDM)

Article number: 4210725

Hydraulic data
Maximum inlet pressure p inl	6 bar
Maximum operating pressure PN	10 bar
Discharge port	Rp 1
Min. fluid temperature T_min	-15 °C
Max. fluid temperature T_max	110 °C
Min. ambient temperature T_min	-15 °C
Max. ambient temperature T_max	40 °C

Motor data
Mains connection	3~400 V, 50 Hz
Voltage tolerance	±10 %
Rated power P₂	0.75 kW
Motor efficiency class	IE3
Rated current I_N	1.95 A
Rated speed n	2900 1/min
Activation type	Direct On Line (DOL)
Power factor cos φ₁₀₀	0.82
Motor efficiency 50% η_M50%	79.5 %
Motor efficiency 75% η_M75%	80.7 %
Motor efficiency 100% η_M100%	80.7 %
Insulation class	F
Protection class motor	IP54

Materials
Pump housing	Stainless steel
Impeller	Stainless steel
Shaft	Stainless steel
Mechanical seal	BQ1EGG
Gasket material	EPDM

Installation dimensions
Pipe connection on the suction side DNs	Rp 1¼
Pipe connection on the discharge side DNd	Rp 1

Economy MHI

3~400 V; 1~230 V

Product data
Brand	Wilo
Product description	Economy MHI 404 (3~400 V, EPDM)
Article number	4210725
EAN number	4048482691817
Colour	green/silver
Minimum order quantity	1
Date of sales availability	2016-09-01

Packaging
Packaging type	Cardboard box
Packaging property	Transport packaging
Pieces per pallet	1
Number per layer	1

Dimension, weight
Length with packaging	600 mm
Length L	457 mm
Height with packaging	280 mm
Height H	219 mm
Width with packaging	260 mm
Width W	190 mm
Gross weight, approx. m	15.1 kg
Net weight, approx. m	13.6 kg

Multistage, non-self-priming, horizontal high-pressure centrifugal pump in block design with horizontal suction- and vertical pressure port.

The pump has a compact design with a continuous motor pump shaft and a bidirectional mechanical seal.

The pump is suitable for water supply and pressure boosting, industrial recirculation systems, process water and cooling water circuits. It can also be used in washing systems as well as for irrigation.

Special features/product advantages

Space-saving, compact block design
All hydraulic parts which come into contact with the fluid, such as stage chambers, impellers and diffusors and the pump housing are made of stainless steel
Drinking water approval (KTW, WRAS) for all components in contact with the fluid (EPDM version)

Scope of delivery

Wilo-Economy MHI high-pressure multistage centrifugal pump
Installation and operating instructions

Design notes

Motor protection for three-phase AC motor is optional or to be provided on-site
Single-phase AC motor equipped with built-in thermal motor protection and capacitor

Operating Data

Product data
Min. fluid temperature T_min	-15 °C
Max. fluid temperature T_max	110 °C
Max. ambient temperature T_max	40 °C
Maximum operating pressure PN	10 bar
Maximum inlet pressure p inl	6 bar

Motor data
Mains connection	3~400 V, 50 Hz
Voltage tolerance	±10 %
Rated power P₂	0.75 kW
Motor efficiency class	IE3
Rated current I_N	1.95 A
Rated speed n	2900 1/min
Power factor cos φ₁₀₀	0.82
Motor efficiency 50% η_M50%	79.5 %
Motor efficiency 75% η_M75%	80.7 %
Motor efficiency 100% η_M100%	80.7 %
Insulation class	F
Protection class	IP54

Materials
Pump housing	Stainless steel
Impeller	Stainless steel
Shaft	Stainless steel
Shaft seal	BQ1EGG
Gasket material	EPDM

Installation dimensions
Pipe connection on the suction side DNs	Rp 1¼
Pipe connection on the discharge side DNd	Rp 1

Ordering information
Brand	Wilo
Product description	Economy MHI 404 (3~400 V, EPDM)
Net weight, approx. m	13.6 kg
Article number	4210725

Installation and operating instructions

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Article Number	2020406
Edition	1604
Number of pages	1
Language	en, et, hr, lt, lv, mk, pt, sk, sl, sr, tr, uk

ZIP (12 MB)

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Article Number	2020406
Edition	1604
Number of pages	12
Language	en

PDF (258 KB)

Wilo-Economy MHI

Article Number	2020406
Edition	2020-03
Number of pages	112
Language	ar, bg, cs, da, de, el, en, es, et, fi, fr, ga, hr, hu, it, ko, lt, lv, mk, nl, no, pl, pt, ro, ru, sk, sl, sr, sv, tr, uk, zh

PDF (4 MB)

Group Statement

Group Statement REACH

Edition	2021-05
Number of pages	5
Language	language neutral

DWG (16 KB)

In inlet mode (1)
Shut-off valve
Shut-off valve	Ball valve Rp 1	2663980
Shut-off valve	Ball valve with lever for easy and safe installation. Certified suitability in accordance with CE for drinking water applications (e.g. in accordance with DIN 1988). Ball valves DVGW-certified up to Rp 2. Scope of delivery Ball valve with lever grip 5
Level control without fault signal (4)
Float switch WAO
Float switch WAO	Float switch WAO 65, 10 m cable	2006027
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 20 m cable	2004429
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 30 m cable	2004430
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 5 m cable	503211595
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Pressure control with fault signal (1)
Wilo-EFC
Wilo-EFC	EFC0.75 3x380-480V 50/60Hz IP55	2193431
Wilo-EFC	A stand-alone frequency converter for fixed-speed pumps that are operated in variable applications, especially for heating, air conditioning and pressure boosting. Special features/product advantages Compact design with an energy-saving cooling concept for lowering temperature losses Integrated energy-efficient harmonic reduction function in the pump’s partial load range Versatile pumping application scenarios thanks to differing connection options and different control modes Simple commissioning thanks to an intuitive assistant with graphical user interface Options External communication via IF modules (optional): Profibus, DeviceNet, Profinet, Ethernet, Modbus Scope of delivery Stand-alone frequency converter Installation and operating instructions

Fittings (2)
Non-return valve
Non-return valve	Non-return valve RV/S R 1	2660842
Non-return valve	Non-return valve without screwed connections for use in water supply applications, DVGW-certified. Option Screwed connection for non-return valve made of brass (separate accessories)
Shut-off valve
Shut-off valve	Ball valve Rp 1	2663980
Shut-off valve	Ball valve with lever for easy and safe installation. Certified suitability in accordance with CE for drinking water applications (e.g. in accordance with DIN 1988). Ball valves DVGW-certified up to Rp 2. Scope of delivery Ball valve with lever grip 5
Pipe installation (1)
Flexible connection line
Flexible connection line	Flexible connection line Rp1 1/4 / R1 1/4	2526774
Flexible connection line	The flexible connecting line ensures that the pipes of the pressure boosting system are connected stress-free to the supply line.
Suction filter (1)
Suction filter (threaded extraction)
Suction filter (threaded extraction)	Fine suction filter	2025755
Suction filter (threaded extraction)	Fine suction filter without non-return valve for prefiltration when extracting water from break tanks. Mesh width: 1.2 mm. With R 1¼ male thread for insertion into pump suction port of TWI5-SE. Note Suitable for applications in domestic water supply for all pump types with a rated volume flow of approx. 3 m³/h. Scope of delivery Stainless steel fine filter Plastic threaded elbow joint
Valves/accessories (1)
Screwed connection for non-return valve
Screwed connection for non-return valve	Screwed connection for non-return valve DN 32	2660529
Screwed connection for non-return valve	Kit is comprised of 2 union nuts and 2 threaded nozzles made of brass and 2 seals. For valves with flat-sealing male thread.

Pump control (1)
Wilo-EFC
Wilo-EFC	EFC0.75 3x380-480V 50/60Hz IP55	2193431
Wilo-EFC	A stand-alone frequency converter for fixed-speed pumps that are operated in variable applications, especially for heating, air conditioning and pressure boosting. Special features/product advantages Compact design with an energy-saving cooling concept for lowering temperature losses Integrated energy-efficient harmonic reduction function in the pump’s partial load range Versatile pumping application scenarios thanks to differing connection options and different control modes Simple commissioning thanks to an intuitive assistant with graphical user interface Options External communication via IF modules (optional): Profibus, DeviceNet, Profinet, Ethernet, Modbus Scope of delivery Stand-alone frequency converter Installation and operating instructions
Pump control/accessories (5)
Low-water cut-out switchgear kit for domestic water systems
Low-water cut-out switchgear kit for domestic water systems	low-water cut-out switchgear kit WMS G 1¼	4204510
	The kit detects low water using pressure measurement and is adjusted to the increase in pressure and pressure maintenance of non-potable water. The kit is used exclusively for single-phase products. For horizontal pumps, the connection is established for 1" or 1"1/4 using a reduction nipple M/M 1"1/4-1". For vertical pumps, the oval shape 1"1/4 connection is possible using an oval counter flange with an O-ring. The switch-on and switch-off pressure for needs-based operation and pressure range of the pump is configured on the reverse pressure switch. The pressure measurement is carried out using a single-phase low pressure switch. If the pressure decreases and reaches 0.1 bar, the pump is stopped. The pump starts again when the pressure rises and reaches 0.5 bar. These starting and stopping pressure values are factory settings and can be changed. You can use the pressure gauge to define the values. Scope of delivery The kit is supplied with the following, unmounted components: Single-phase low-pressure switch T-connector 1/4’’ M/F/F Pressure gauge 0-6 bar M/M reduction nipple 3/8’’ – 1/4’’ T-connector 1’’1/4 – 3/8’’ – 1’’1/4 Reduction nipple M/M 1’’1/4 – 1’’ M/M nipple 1’’1/4 Oval counter flange 1’’1/4 O-ring
	low-water cut-out switchgear kit WMS G2	4204512
	The kit detects low water using pressure measurement and is adjusted to the increase in pressure and pressure maintenance of non-potable water. The kit is used exclusively for single-phase products. For horizontal pumps, the connection is established for 1"1/2 or 2" using a reduction nipple M/M 2"-1"1/2. For vertical pumps, the oval shape 2" connection is possible using an oval counter flange with an O-ring. The switch-on and switch-off pressure for needs-based operation and pressure range of the pump is configured on the reverse pressure switch. The pressure measurement is carried out using a single-phase low pressure switch. If the pressure decreases and reaches 0.1 bar, the pump is stopped. The pump starts again when the pressure rises and reaches 0.5 bar. These starting and stopping pressure values are factory settings and can be changed. You can use the pressure gauge to define the values. Scope of delivery Single-phase low-pressure switch T-connector 1/4’’ M/F/F Pressure gauge 0-6 bar M/M reduction nipple 1/2’’ – 1/4’’ T-connector 2’’– 1/2’’ – 2’’ Reduction nipple M/M 2’’ – 1’’1/2 M/M nipple 2’’ Oval counter flange 2’’ O-ring
Output filter EFC (150-500 m cable length)
Output filter EFC (150-500 m cable length)	2.4 A sin IP54 Wilo-EFC filter	6084559
	Output filter for Wilo-EFC
	2.5 A sin IP00 Wilo-EFC filter	6084574
	Output filter for Wilo-EFC
	2.5 A sin IP20 Wilo-EFC filter	6084900
	Output filter for Wilo-EFC
Pressure control (5)
Pressure sensor for systems
Pressure sensor for systems	Pressure sensor, 0 - 6 bar	2550660
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 10 bar	2550661
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 16 bar	2550662
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 25 bar	2550663
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
	Pressure sensor, 0 - 40 bar	2550664
	Signal transmitter for differential pressure-sensitive infinitely variable speed control. Note Take care to ensure that a non-return valve is placed between pump and sensor. Further maintenance valves and a diaphragm pressure vessel are required for error-free functioning. Scope of delivery Pressure sensor (factory-calibrated) Plug
Level control (28)
Float switch WA
Float switch WA	Float switch WA65 with 5 m cable	503211390
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 10 m cable	503211893
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 20 m cable	2004431
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 with 30 m cable	2004432
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA KR1 S with 5 m cable	6082806
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA KR1 S with 10 m cable	6082807
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WA65 (PSN-X) with 20 m cable	6088843
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
	Float switch WA65 (PSN-X) with 10 m cable	6088844
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
	Float switch WA65 (PSN-X) with 5 m cable	6088845
	As a signal transmitter for the system switching, depending on the fill level of an open tank or a cistern. Switching points: up ON/down OFF with switching contacts NO/COM/NC
Float switch WA-EK
Float switch WA-EK	Float switch WAEK 65, 5 m cable	503211698
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WAEK 65, 10 m cable	2005516
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
	Float switch WAEK 65, 20 m cable	2005517
	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up ON / down OFF
Float switch WAO
Float switch WAO	Float switch WAO 65, 5 m cable	503211595
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 10 m cable	2006027
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 20 m cable	2004429
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
	Float switch WAO 65, 30 m cable	2004430
	As a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Float switch WAO-EK
Float switch WAO-EK	Float switch WAOEK 65, 20 m cable	2005626
Float switch WAO-EK	Small EK switchgear complete with float switch wired for ready-to-plug consumer (1~230 V, 50 Hz) to 1 kW rated power. The float switch functions as a signal transmitter for the system switching, depending on the level of an open container or a cistern. Switching points: up OFF, down ON
Submersible electrode
Submersible electrode	Submersible electrode, 3 m	500183799
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 4 m	2516278
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 5 m	500937990
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 10 m	2501937
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 20 m	2516283
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 25 m	2000601
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 30 m	2514045
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 35 m	2516284
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 40 m	2516285
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode, 50 m	2500315
	Signal transmitter with connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. The H07 cable is approved for drinking water applications.
	Submersible electrode without cable	64873
	Signal transmitter without connection cable for protection against low water level for borehole pumps. To be connected to a switchgear with a triggering relay. Notice: The connection cable must be provided and connected by the customer!
Motor protection (1)
PTC thermistor tripping unit
PTC thermistor tripping unit	PTC thermistor tripping unit	509275993
PTC thermistor tripping unit	PTC thermistor triggering relay for switch cabinet installation (1 device per motor required). The thermistor overload relays monitor motors which are equipped with PTC thermistor temperature sensors. The temperature sensors are installed in the windings of the motors and measure the heating up of the motor directly. This enables direct monitoring and evaluation of various operating conditions. A collective fault signal (SSM) is possible with corresponding wiring in the switch cabinet.

With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

Recommended services
Maintenance	Maintenance BASIC Booster Set 1-2 pumps	2160453
	In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections, maintenance and repair carried out by WILO SE’s own customer service. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points: Visual inspection of the pumps/systems Mechanical check Electrical check Inspection of any diaphragm expansion tanks in the system (not filling) Review and, if necessary, adjustment of the system parameters Drawing up a maintenance and repair report WILO SE schedules and organises initial maintenance and repairs. Further customised maintenance and repair services are possible after the first maintenance and repairs are conducted.
	Maintenance COMFORT Booster Set 1-2 pumps	2160468
	In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections, maintenance and repair carried out by WILO SE’s own customer service. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points: Visual inspection of the pumps/systems Mechanical check Electrical check Testing and possible filling of pressure vessels that may be on hand Review and, if necessary, adjustment of the system parameters Drawing up a maintenance and repair report Consumables are included in the price Small repairs are included in the maintenance and repair price No labour and travel expenses are charged for deployments between maintenance and repair intervals (during normal operating hours) WILO SE schedules and organises initial maintenance and repairs. Further customised maintenance and repair services are possible after the first maintenance and repairs are conducted. The quoted price refers to the initial maintenance and repair offered. -NET-
	Maintenance PREMIUM Booster Set 1-2 pumps	2160483
	In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points: Visual inspection of the pumps/systems Mechanical check Electrical check Testing and possible filling of pressure vessels that may be on hand Checking the system parameters Creating a maintenance protocol Consumable materials are included in the contract price Elimination of payroll and travel expenses for deployments between maintenance intervals (during and outside normal service hours) Software updates Wearing parts included Scheduling and organisation are performed by WILO SE. Other individual maintenance offers are possible on request.
Commissioning	Commissioning Booster Set 1-2 pumps	2216414
	For perfect functioning of the pump(s) / system(s), it is recommended to have the commissioning carried out by the works' own WILO SE Customer Service Department. Optimum setting and efficient operation of the system are ensured as a result. Commissioning is comprised of the following points: Commissioning of system(s) according to checklist Parameterisation and setting of switchgear Testing and adaptation of initial compressing of pressure tanks (filling up to 80 litres incl.) Functional check of fitted system(s) Practice-oriented operation instruction Wilo commissioning protocol The price for commissioning only applies to system(s) which have been installed in accordance with the installation and operating instructions and state-of-the-art technology. No costs for any materials which may be required are included. -NET-
More suitable services
Service packages	Service Package L Booster Set 1-2 pumps	2216420
	The Wilo service offers predefined service packages in three sizes to make it easier to combine individual services. The Wilo-Service package L includes: Installation check Supervision Commissioning Maintenance Energy Solutions WiloCare Premium Wilo-Live Assistant Optional add-on services: System Optimisation Repairs Extended Warranty
	Service Package M Booster Set 1-2 pumps	2216419
	The Wilo service offers predefined service packages in three sizes to make it easier to combine individual services. The Wilo-Service package M includes: Installation check Supervision Commissioning Maintenance WiloCare Comfort Wilo-Live Assistant Optional add-on services: System Optimisation Energy Solutions Repairs Extended Warranty
	Service Package S Booster Set 1-2 pumps	2216418
	The Wilo service offers predefined service packages in three sizes to make it easier to combine individual services. The Wilo-Service package S includes: Installation check Commissioning Maintenance WiloCare Basic Wilo-Live Assistant Optional add-on services: System Optimisation Energy Solutions Supervision Repairs Extended Warranty
Wilo-Live Assistant	Wilo-Live Assistant Service	2216415
	The Wilo-Live Assistant is a technical advisor at your side during pump service. By using the Wilo-Live Assistant, our expert advisers can support you in the boiler or equipment room via video transmission – live and in real time. You use your smartphone to show the installation set-up, while the Wilo expert follows everything on their screen. They can see the components as well as other details and can thus determine where the fault or breakdown originates. We prevent downtime and ensure operational reliability of your pumps and systems! The Wilo-Live Assistant includes: Interactive live support via video chat Direct contact with an expert Just-in-time solution to ensure maximum operational reliability of your pumps and systems
Extended Warranty	Extended Warranty Booster Set 1-2 pumps	2216416
	In combination of a new pump or system Wilo offers an extended warranty of up to five years in combination with commissioning and maintenance by the Wilo Service. Extended warranty includes: Full protection and predictable cost security Regular maintenance work by the Wilo Service
Supervision	Supervision Booster Set 1-2 pumps	2216412
	Wilo supports during the concept phase to ensure quality work and cost efficiency. Our competent and qualified Wilo Service will support you with recommendations and technical advice throughout the entire project. Supervision includes: Regular on-site visits ensure the quality of information and advice Technical consultancy, also available on site Status report with recommendations after the visit Comprehensive support from a Wilo expert
Installation	Installation Booster Set 1-2 pumps	2216413
	The Wilo service offers installation of our pumps or pumping systems. We offer an end-to-end process from gathering information on site to installing our product in the overall plant. An optimal installation set-up and the interaction of various individual factors lay the foundation for long-term operational safety. Installation includes: Professional inspection Provision of components/materials from Wilo and third-party suppliers Installation of pipelines and electronics Test runs
System Optimisation	System Optimisation Booster Set 1-2 pump	2216410
	The Wilo Service offers proactive system optimisation by optimising settings and doing minor adjustments to ensure operational reliability. System Optimisation includes among others: Overhaul of pumps/systems to restore full performance Addition of new technologies or functions in older systems to save on capital expenditures (retrofitting)
Energy Solutions	Energy Solutions Booster Set 1-2 pumps	2216411
	Wilo Service offers a proactive support to point out possible energy savings. Our service creates an overview of all installed assets to show how the energy consumption of pumps or systems can be reduced. We offer targeted consultancy and analysis, including the involvement of subsidies as well as comprehensive support around the changeover to high-efficiency technologies. Wilo-Energy solution includes: Detailed assessment of the life cycle costs (LCC analysis) Energy audit including information about energy saving potential Proactive recommendation of replacement options Improving the environmental performance of your system Support in the changeover to Wilo high-efficiency pumps
Repair	Repair Booster Set 1-2 pumps	2216417
	Wilo Service draws on their competence and experience while consulting on site to decide whether the pump can actually be repaired on site or has to be sent in for a factory repair. Wilo also provides spare parts or a replacement pump to restore the operational reliability of the system. Repair includes: Verification and elimination of error causes by experienced Wilo experts Non-binding estimate for repairs Electric-hydraulic test run to ensure correct data regarding functionality, quality and performance of the pump or system Coating of various pump or system components for an optimised efficiency factor Use of genuine spare parts only Documentation of the repair in the service report

Economy MHI 404 (3~400 V, EPDM)

Economy MHI

3~400 V; 1~230 V

Installation and operating instructions

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Wilo-Economy-MHI 2.. / 4.. / 8.. / 16..

Wilo-Economy MHI

Group Statement

Group Statement REACH

3D_DWG

MHI404-1/E/3-400-50-2/IE3

3D_STEP

MHI404-1/E/3-400-50-2/IE3

2D_DWG_TOP

MHI404-1/E/3-400-50-2/IE3

2D_DWG_FRONT

MHI404-1/E/3-400-50-2/IE3

2D_DWG_RIGHT

MHI404-1/E/3-400-50-2/IE3

In inlet mode (1)

Shut-off valve

Shut-off valve

Level control without fault signal (4)

Float switch WAO

Float switch WAO

Pressure control with fault signal (1)

Wilo-EFC

Wilo-EFC

Fittings (2)

Non-return valve

Non-return valve

Shut-off valve

Shut-off valve

Pipe installation (1)

Flexible connection line

Flexible connection line

Suction filter (1)

Suction filter (threaded extraction)

Suction filter (threaded extraction)

Valves/accessories (1)

Screwed connection for non-return valve

Screwed connection for non-return valve

Pump control (1)

Wilo-EFC

Wilo-EFC

Pump control/accessories (5)

Low-water cut-out switchgear kit for domestic water systems

Low-water cut-out switchgear kit for domestic water systems

Output filter EFC (150-500 m cable length)

Output filter EFC (150-500 m cable length)

Pressure control (5)

Pressure sensor for systems

Pressure sensor for systems

Level control (28)

Float switch WA

Float switch WA

Float switch WA-EK

Float switch WA-EK

Float switch WAO

Float switch WAO

Float switch WAO-EK

Float switch WAO-EK

Submersible electrode

Submersible electrode

Motor protection (1)

PTC thermistor tripping unit

PTC thermistor tripping unit

Recommended services

Maintenance

Commissioning

More suitable services

Service packages

Wilo-Live Assistant

Extended Warranty

Supervision

Installation

System Optimisation

Energy Solutions

Repair