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RAIN3-45 EM | Wilo
Technical data
Hydraulic data
Maximum operating pressure PN 8 bar
Discharge port G 1
Max. volume flow Qmax 6,0 m³/h
Optimal volume flow Qopt 3,8 m³/h
Max. delivery head Hmax 51,7 m
Optimal delivery head Hopt 36,42 m
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Min. ambient temperature Tmin 5 °C
Max. ambient temperature Tmax 40 °C
Motor data
Mains connection 1~230 V, 50 Hz
Shaft power P2(Q=max.) of selected impeller * number of pumps 800 W
Rated speed n 2900 1/min
Rated current IN 4,6 A
Protection class motor X4
Insulation class F
Materials
Pump housing PA6T/6I-GF40
Impeller PPE/PS-GF30
Shaft Stainless steel
Shaft seal BVPFF
Stage chamber material PPE/PS-GF30
Installation dimensions
Gross volume of the tank V 10 l
Pipe connection on the suction side DNs G 1
Pipe connection on the discharge side DNd G 1

RAIN3-45 EM

Product data
Brand Wilo
Product description RAIN3-45 EM
Article number 2551473
EAN number 4048482967967
Colour white/black
Minimum order quantity 1
Date of sales availability 2023-06-07
Packaging
Packaging type Cardboard box
Packaging property Sales packaging
Pieces per pallet 4
Number per layer 1
Dimension, weight
Length with packaging 777 mm
Length L 642 mm
Height with packaging 908 mm
Height H 715 mm
Width with packaging 295 mm
Width W 260 mm
Gross weight, approx. m 30,9 kg
Net weight, approx. m 27,9 kg
Tender text

Wilo-RAIN3 is a rainwater utilisation system for conserving drinking water, for the water supply of, for example, WC cisterns or for garden irrigation. Its compact and standardised construction in accordance with EN 1717 and DIN 1989 and its numerous hydraulic connection options speed up and simplify every new installation or replacement. In addition, the intuitive interface of the touch LCD combined with numerous smart functions such as self-protection routines ensure convenient operation and high reliability.

Special features/product benefits

  • Easy installation thanks to its ready-to-plug system and compact design with various hydraulic connection options
  • A unique combination of intuitive LCD touchscreen operation and a wide range of control functions facilitate convenient operation and easy-to-use settings
  • High level of reliability thanks to integrated self-protection routines
  • Non-return valve and replenishment reservoir in accordance with DIN 1989 and EN 1717 ensure hygienic safety
  • Quiet operation in installations close to living space
  • Controls can be conveniently updated by Wilo Service via Wi-Fi

Equipment/functions

Ready for connection module with compact construction, consisting of:

  • HiMulti 3 P self-priming centrifugal pump, mounted on a base frame with oscillation absorbers
  • 11 l replenishment reservoir for fresh water replenishment with float valve
  • 3-way valve
  • Front and rear cover
  • Connection on the discharge side, G 1″ hose
  • Connection on the suction side, G 1″ hose
  • Connection for municipal water supply network: G ¾″, max 6 bar
  • 3 m mains connection cable and plug
  • 4 … 20 mA filling level sensor with 20 m cable for rainwater level monitoring in the storage tank
  • 4 … 20 mA pressure sensor
  • Overflow sensor installed in the replenishment reservoir
  • Acoustic alarm
  • Potential-free contact available for optional external alarm or fault message
  • Electronic control device with colour LCD touchscreen

Operation/display

  • Display with colour LCD touchscreen
  • Permanent display for the fill level in the rainwater storage tank, operating pressure and mode (automatic – manual), pumping mode (rainwater – tap water)
  • Logging of the last 10 faults

Control

Fully automatic control of:

  • HiMulti 3 P self-priming centrifugal pump
  • Configurable triggering pressure
  • Operating modes of the systems (manual or automatic)
  • 3-way valve switchover between rainwater operation and municipal water supply network
  • Level monitoring of the rainwater storage tank
  • Replenishment reservoir overflow detection
  • Dry-running protection of pump
  • Self-priming support
  • Automatic periodical water exchange in the replenishment reservoir (selectable intervals)
  • Run signals and fault messages
  • Optional external alarm or fault message
  • Optional submersible pump (rainwater storage tank pump)

Monitoring

  • 4 … 20 m filling level sensor monitors rainwater fill level in storage tank
  • Current supply pressure
  • Dry-running protection of pump
  • Continuous monitoring of sensor cables
  • Protection of pump mains voltage supply via circuit breaker
  • Replenishment reservoir overflow

Interfaces

  • Relay for optional submersible pump
  • Potential-free contact available for external alarm or fault message to BMS
  • Potential-free contact for sensor to detect overflow or backflow

Additional electrical connections at the control device

Can be used to control optional devices or for communication:

  • Connection of a rainwater storage tank pump:
    • In case of possible suction problems if the maximum negative suction head of the main pump is exceeded (e.g. rainwater storage tank too deep or pipes too long), connect a rainwater storage tank pump (submersible pump, 230 V, max. 3 A) to the control device. Pumps for these applications are available from Wilo. Consult specialist technician.
  • Potential-free contact can be used for fault messages
  • Sensor for overflow or backflow detection
Materials
Pump housing PA6T/6I-GF40
Shaft Stainless steel
Impeller PPE/PS-GF30
Operating data
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Maximum operating pressure p 8,0 bar
Max. ambient temperature Tmax 40 °C
Motor data
Mains connection 1~230 V, 50 Hz
Rated speed n 2900 1/min
Rated current IN 4,6 A
Protection class motor X4
Insulation class F
Installation dimensions
Overflow connection Ø19-PN0
Pipe connection on the suction side DNs G 1
Pipe connection on the discharge side DNd G 1
Ordering information
Net weight, approx. m 27,9 kg
Brand Wilo
Product description RAIN3-45 EM
Article number 2551473
Documents

Installation and operating instructions

Wilo-RAIN3

Article Number 4232897
Edition 2024-02
Number of pages 132
Language de, en, fr, nl
PDF (17 MB)

Wilo-RAIN3 - Quick Start Guide

Article Number 4263496
Edition 2024-02
Number of pages 16
Language de, en, fr, nl
PDF (10 MB)

Group Statement

Group Statement REACH

Edition 2021-05
Number of pages 5
Language language neutral
PDF (287 KB)
BIM/CAD
Accessory

Floating intake (14)

Rainwater storage tank pump (10)

Near-ground intake (10)

Fittings (1)

Hoses / hose joints (5)

Installation/setup (1)

Pipe installation (1)

Pressurised expansion tanks (3)

Suction filter (4)