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Wilo-RAIN1

Series description

Your advantages

  • Easy installation thanks to ready-to-plug system and compact design with various hydraulic connection options
  • Convenient operation and simple setting functions thanks to intuitive interface and smart 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
  • Control system can be updated via Wifi for Wilo Service

Rainwater reuse with multiple connection options

The Wilo-RAIN1 is a rainwater utilisation system for the water supply of e.g. toilet flushing tanks or garden irrigation. Its compact and standardised design according to EN1717 and DIN1989 and its multiple hydraulic connection options make any new installation or replacement easier and faster. Furthermore, the intuitive interface combined with numerous smart functions such as self-protection routines brings convenience and high reliability.

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 for connection module with compact construction, consisting of:

  • HiMulti 3 P self-priming centrifugal pump, mounted on a base frame with vibration absorbers
  • 11 l break tank for fresh water replenishment with float valve
  • 3-way valve
  • Connection on the pressure side, Rp 1" hose
  • Connection on the suction side, Rp 1" hose
  • Connection for municipal water supply network R ¾"
  • 1.5 m mains connection cable and plug
  • Float switch with 20 m cable for rainwater level monitoring in the storage tank
  • Potential-free contact available for optional external alarm or fault message
  • Relay for optional submersible pump (rainwater storage tank pump)
  • Electronic control device with integrated zero flow detection and analogue pressure sensor on the pressure side
  • Operating panel with pushbuttons, 7 segment display and LEDs

Main functions:

  • Fully automatic rainwater utilisation
  • Operating and fault messages
  • Dry-running protection of pump
  • Self-priming support
  • Automatic water replacement break tank
  • Permanent display for the fill level in the rainwater storage tank, system pressure on the pressure side, operating status of the control interface

Scope of delivery

  • Ready-to-connect rainwater utilisation system with fixation material
  • Installation and operating instructions
  • Float switch
  • Sticker ”Do not expose to frost”
  • Sticker ”No drinking water”

Type key

e.g.

Wilo-RAIN1-25 EM

Wilo

Brand name

RAIN

Rainwater utilisation system

1

Product level

2

Rated volume flow Q in m³/h

5

Number of impellers

EM

Single phase

Technical data

  • Mains connection: 1~230 V, 50 Hz
  • Connection cable: 1.5 m length
  • Protection class: IPX4
  • Motor with integrated thermal motor protection probe
  • Max. operating pressure: 8 bar
  • Triggering pressure: 1.5 bar
  • Max. suction head: 8 m
  • Max. fluid temperature: +5 °C to +30 °C
  • Ambient temperature: +5 °C to +40 °C
  • Break tank volume: 11 litres
  • Nominal connection diameters:
    • Pressure connection Rp 1" thread, union nut
    • Suction connection Rp 1" thread, union nut
    • Connection for municipal water supply network at float valve R ¾" (male thread)

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-RAIN1

Downloads

REACH regulation

Edition 2019-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (853 kB)

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General overview 2020 International version

Edition 2020
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 78

PDF (48 MB)

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