Wilo-RAIN3

Rainwater utilisation via touchscreen.

The Wilo-RAIN3 is a rainwater utilisation system in accordance with EN 1717 and DIN 1989 standards. Its compactness and versatile hydraulic connection options mean that initial commissioning or replacement is quick and straightforward.

What’s more, it is also extremely convenient and highly reliable thanks to the intuitive user interface of the touch LCD in connection with various intelligent functions such as the self-protection routine.

Your advantages

  • Easy installation thanks to ready-to-plug system and compact design with various hydraulic connection options
  • Convenient operation and easy setting options thanks to a unique combination of intuitive LCD touch screen operation and a wide range of functions
  • High level of reliability thanks to integrated self-protection routines
  • Hygiene safety thanks to non-return valve and a break tank in accordance with DIN 1989 and EN 1717
  • Easy maintenance with direct access to the system components
  • Quiet operation in residential spaces with smart home integration option
Wilo-RAIN3_Feature_1_EN
Wilo-RAIN3_Feature_2_EN
Wilo-RAIN3_Feature 3_EN
Wilo-RAIN3_Feature 4_EN

FAQ

Is the new Wilo-RAIN3 series equivalent to the old one? Are the new products covering the same duty points?

Wilo-AF Comfort MC304 can be replaced by Wilo-RAIN3-24
Wilo-AF Comfort MC305 can be replaced by Wilo-RAIN3-25

Wilo-RAIN3-45 is a new version for higher volume flows in large residential buildings and light commercial

What is the standard scope of delivery?

  • Fixation material to hang the system on the wall
  • Operating instructions
  • 4.20mA level sensor with 20m length cable. 30m cable length version available as accessory
  • 2 stickers: ”Do not expose to frost” and ”No drinking water”

Why the overflow funnel is not provided anymore?

The break tank has 2 overflow drains, a flexible hose can be connected directly to the fitting beneath the break tank to drain overflow water towards wastewater. In case of clogging the overflow water can still flow freely through the big opening according to EN1717 standard. The water flooding risk is reduced thanks to this optimised design and the funnel becomes useless.
Wilo-RAIN3 has an overflow switch installed by default to warn the user if an overflow is detected in the break tank.

How often should the system be maintained?

Once a year it is recommended to:

  • Check the water tightness of the installation.
  • Drain the break tank and clean it.
  • Check the float valve filter and clean/replace it.

Series description

Your advantages

  • Easy installation thanks to ready-to-plug system and compact design with various hydraulic connection options
  • Convenient operation and easy setting options thanks to a unique combination of intuitive LCD touch screen operation and a wide range of functions
  • High level of reliability thanks to integrated self-protection routines
  • Hygiene safety thanks to non-return valve and a break tank in accordance with DIN 1989 and EN 1717
  • Easy maintenance with direct access to the system components
  • Quiet operation in residential spaces with smart home integration option

Rainwater utilisation via touchscreen.

The Wilo-RAIN3 is a rainwater utilisation system in accordance with EN 1717 and DIN 1989 standards. Its compactness and versatile hydraulic connection options mean that initial commissioning or replacement is quick and straightforward.

What’s more, it is also extremely convenient and highly reliable thanks to the intuitive user interface of the touch LCD in connection with various intelligent functions such as the self-protection routine.

Construction

Ready-to-plug single pump rainwater utilisation system

Application

Rainwater utilisation system is designed for applications that do not require drinking water supply such as:

  • Toilets flushing tanks
  • Washing machines
  • Garden irrigation

(Please check that the application complies with local regulations)

Equipment/function

Ready-to-connect module with compact construction, comprising:

  • HiMulti 3 P self-priming centrifugal pump mounted on a base frame with vibration dampers
  • 11 liters break tank for fresh water replenishment with float valve
  • Three-way valve
  • Front and back covers
  • Discharge connection hose Rp 1″
  • Suction connection hose Rp 1″
  • City main water connection R 3/4″
  • 1.5 m power supply cable and plug
  • 4..20mA level sensor with 20m cable for rainwater level monitoring in the storage tank
  • 4..20mA pressure transmitter
  • Overflow sensor installed in the break tank
  • Acoustic alarm
  • Potential free contact available for optional external alarm or failure reporting
  • Relay for optional immersed pump
  • Electronic control switchgear
  • Color LCD touchscreen

Main functions:

  • Fully automatic rainwater utilisation
  • Operation and faults signals
  • Log 10 last failures
  • Pump dry running protection
  • Self priming assistance
  • Automatic break tank water renewal
  • Permanent display of rainwater storage tank level, system discharge pressure, operating status on the controller interface

Scope of delivery

  • Ready-to-connect rainwater utilisation system with fixation material
  • Installation and operating instructions
  • 4..20mA level sensor
  • Sticker ”Do not expose to frost”
  • Sticker ”No drinking water”

Type key

Example:

WILO-RAIN 3-25 EM

WILO

Brand name

RAIN

Rainwater utilisation system

3

Product level

2

Rated volume flow Q in m³/h

5

Number of impeller

EM

Single phase

Technical data

  • Mains connection: 1~230 V, 50 Hz
  • Power supply cable: 1.5 m length
  • Protection class: IPX4
  • Motor with integrated thermal protection probe
  • Max. operating pressure: 8 bar
  • Triggering pressure: 1.5 bar
  • Negative suction head max.: 8 m
  • Fluid temperature max.: +5 °C to +30 °C
  • Ambient temperature: +5 °C up to +40 °C
  • Break-tank volume 11 liters
  • Nominal connections diameters:
    • Discharge connection Rp 1″ threaded swivel-nut
    • Suction connection Rp 1″ threaded swivel-nut
    • City main water connection on the float valve R 3/4″ (male)

Materials

HiMulti 3 P:

  • Pump housing in Technopolymer
  • Impellers and stage casing made of Noryl 30% GF
  • Pump cover and shaft made of stainless steel
  • Mechanical seal made of ceramic/carbon

Description/construction

Ready-to-plug single-pump rainwater-supply unit as compact module for residential and light commercial buildings.

The system fulfils the criteria outlined in DIN 1989 and EN 1717.

All parts that come into contact with the fluid are corrosion resistant.

Duty chart

Wilo-RAIN3

Downloads

REACH regulation

Edition 2018-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (581 kB)

Download

General overview 2019 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 74

PDF (42 MB)

Download

PDF: Wilo-RAIN3

Configure

Page selection

Format selection

Optional information

You can enter any personal information that you want to be displayed in the header.

Download