RAIN3

Design

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 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″
• 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
• Relay for optional submersible pump (rainwater storage tank pump)
• Electronic control device
• Colour LCD touchscreen

Main functions:

• Fully automatic rainwater utilisation
• Run signals and fault messages
• Logging of the last 10 faults
• Dry-running protection of pump
• Self-priming support
• Automatic water replacement replenishment reservoir
• Permanent display for the fill level in the rainwater storage tank, system pressure on the pressure side, operating status of the control interface

Type key

Technical data

• Mains connection: 1~230 V, 50 Hz
• Connection cable: 3 m length
• IP rating: IPX4
• Motor with integrated thermal motor protection probe
• Max. operating pressure: 8 bar
• Triggering pressure: 1.5 bar
• Max. negative suction head: 8 m
• Max. fluid temperature: +5 °C to +30 °C
• Ambient temperature: +5 °C to +40 °C
• 11 l replenishment reservoir volume
• Nominal connection diameters:
  • Discharge port: G 1″ thread, union nut
  • Suction port: G 1″ thread, union nut
  • Connection for municipal water supply network at float valve: G 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

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.

Scope of delivery

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

Options

• Rainwater storage tank pump
  • A submersible pump can be installed in the rainwater storage to overcome pressure losses due to suction distance being too great (depending on installation).
• External alarm
• Sensor for overflow or backflow detection