WILO Rain3-25 EM rainwater utilisation system

Your benefits

• Easy installation thanks to the plug-in device and compact design with different hydraulic connection options
• High operating comfort and easy set-up options thanks to the unique combination of intuitive operation via the LCD touch screen and a large number of functions
• High reliability thanks to integrated protection functions
• Hygienic safety thanks to pre-tank with safety device compliant with DIN 1989 and EN 1717
• Possibility to update the control via Wifi for Wilo-Service

Rainwater harvesting via touch screen

The Wilo-RAIN3 is a rainwater harvesting device according to EN 1717 and DIN 1989. Its compactness and diverse hydraulic connection options allow for a simple and easy first installation or replacement.

In addition, the intuitive LCD touchscreen user surface in conjunction with numerous intelligent functions such as the self-protection routine is very convenient and offers high reliability.

Design

Rainwater harvesting device with separate pump with plug

Application

The rainwater harvesting device is designed for applications that do not require a drinking water supply, such as:

• Toilet flush tanks
• Washing machines
• Garden irrigation

(Please check that the use complies with local regulations)

Equipment/functions

Module ready for immediate connection in a compact design. Consists of the following components:

• HiMulti 3 P self-priming centrifugal pump, mounted on a base frame with vibration dampers.
• 11 l pre-tank for refilling clean water with float valve
• Three-way valve
• Front and rear cover
• Connection on discharge side, hose Rp 1"
• Connection on suction side, hose Rp 1"
• Connection for municipal water supply network R ¾"
• 1.5 m mains connection cable and plug
• 4-20 mA fill level sensor with 20 m long cable for monitoring the rainwater level in the storage tank
• 4-20 mA pressure sensor
• Overflow sensor installed in the pre-tank
• Acoustic alarm
• Voltage-free contact available for optional external alarm or fault message
• Relay for optional submersible pump (tank pump)
• Electronic control unit
• Colour LCD touch screen

Main functions:

• Fully automatic rainwater harvesting
• Operating and fault messages
• Logging of last 10 faults
• Pump protection against running dry
• Self-priming support
• Automatic pre-tank water change
• Permanent indication of tank fill level, equipment pressure at discharge, operating status of control interfaces

Contents of delivery

• Rainwater harvesting device ready for immediate connection with fixing material
• Installation and operating instructions
• 4..20 mA Fill status sensor
• "Protect from frost" sticker
• "Water not potable" sticker

Type wrench

Example: Wilo-RAIN3-25 EM

Wilo        Trademark

RAIN       Rainwater harvesting equipment

3             Product level

2             Nominal pumping capacity Q in m³/h

5             Number of impellers

EM          Single phase

Technical data

• Mains connection: 1~230 V, 50 Hz.
• Mains connection cable: length 1.5 m
• Protection class: IPX4
• Motor with integrated thermal protection probe
• Max. operating pressure: 8 bar
• Starting pressure: 1.5 bar
• Max suction height: 8 m
• Max. medium temperature: +5 °C to +30 °C
• Ambient temperature: +5 °C to +40 °C
• Pre-tank volume 11 litres
• Nominal connection clearance: a)Discharge connection Rp 1" Threaded coupling nut, b)Suction connection Rp 1" threaded-drawing nut, c)Connection for municipal water supply network on float valve R ¾" (male thread)

Materials

HiMulti 3 P:

• Pump casing made of technopolymer
• Impellers and stage casings made of 30 % GF noryl
• Pump housing and shaft in stainless steel
• Mechanical seal made of ceramic/carbon

Description/design

Rainwater supply device with separate pump with plug as a compact module for houses and small commercial buildings.

The device meets the criteria of DIN 1989 and EN 1717.

All parts in contact with the medium are corrosion-resistant.