Design
Automatic rainwater utilisation system with run-down tank container and 2 non-self-priming pumps
Application
Hybrid system for commercial and industrial rainwater utilisation for conserving potable water in conjunction with rainwater storage or tanks
Technical data
- Operating pressure max. 10 bar
- Protection class: IP 54
- Connections:
- Pressure pipe/pressure-side joint tubing R 1 ½
- Inflow pipe HT 50
- Overflow connection DN 100
Description/design
- Ready-to-connect water-supply unit with 2 to 4 water-supply pumps as compact module for commercial and industrial rainwater utilisation
- For fully automatic supply with rainwater from ground reservoir or rainwater storage tank using submersible pumps as feeding pumps
- Depending on the pump dimensioning, greater distances between the system and rainwater storage tank can be bridged over with this hybrid system (see also Wilo submersible pumps, Wilo-Drain series)
- High-volume hybrid tank with all integrated functions offers needs-based replenishment of potable water in the consumer network when rainwater storage tanks are not full.
- Fully-electronic control unit for controlling the water supply and cistern pump, equipped with main switch, control switch for each pump with Manual-0-Automatic function and display of the operating status operation/fault for each pump as well as low-water display
- Depending on the pressure, pumps are switched on/off in cascade according to water demand.
- Diaphragm pressure vessel for energy savings in the event of smallest leakages in buildings
- Steady system control by means of cyclical pump cycling and integrated test run on idle pumps.
- Automatic fault-actuated switchover and peak-load cut-in guarantee maximum system availability.
- In the event of low water, the system is switched off by built-in dry-running protection
- including integrated electronic motor protection
- Switchgear outputs extensive signals; it also has additional potential-free contacts for collective run and fault signals
- System is ideally suited for connection to the building management system (BMS/DDC)
Materials
- Pump housing made of 1.4301 stainless steel
- Impeller made of Noryl
- Shaft made of 1.4028 stainless steel
- Mechanical seal made of ceramic/carbon
- Stage chambers made of Noryl
- Diaphragm expansion tank, steel, painted
Scope of delivery
- Two noise-reduced, normal suctioning, multistage centrifugal pumps
- 400 l hybrid tank with all required connections, transmitter unit with 8 l diaphragm pressure vessel, central switchgear, RainControl-Hybrid with control electronics and level control device of Wilo-Drain TM or TS cistern pumps in three-phase version (optionally in single-phase version) to be ordered separately
Options
- Rainwater storage level indicator
- Operating hours counter
- Individual run/fault signals
- Clock timer
