RAIN1-25 EM

Wilo-RAIN1 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 control unit combined with numerous smart functions such as self-protection routines ensure convenient operation and high reliability.

Special features/product benefits

— Drinking water savings

— Easy installation thanks to ready-to-plug system and compact construction with various hydraulic connection options

— Convenient operation and simple setting functions thanks to an intuitive interface and a multitude of functions

— High level of reliability thanks to integrated self-protection routines

— Hygiene safety thanks to non-return valve and break tank in accordance with DIN 1989 and EN 1717

— Easy maintenance with direct access to system components

Equipment/functions

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 3/4″

— 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

— Electronic control device with integrated zero flow detection and analogue pressure sensor on the pressure side

Operation/display

— Operating panel with pushbuttons, 7 segment display and LEDs

— Permanent display for the fill level in the rainwater storage tank, system pressure on the pressure side, operating status of the control interface

Control

Fully automatic control of:

— HiMulti 3 P self-priming centrifugal pump

— Configurable triggering pressure

— Operating modes of the system (manual or automatic)

— 3-way valve switchover between rainwater operation and municipal water supply network

— Level monitoring of the rainwater storage tank

— Dry-running protection of pump

— Self-priming support

— Automatic water replacement break tank

— Operating and fault messages

— Optional external alarm or fault message

— Optional submersible pump (cistern pump)

Monitoring

— Rainwater fill level in storage tank thanks to flow switch

— Current supply pressure

— Dry-running protection of pump

— Continuous monitoring of sensor cables

— Protection of pump mains voltage supply via circuit breaker

Interfaces

— Relay for optional submersible pump

— Potential-free contact available for external alarm or fault message to BMS

Optional accessories

— Cistern 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