Your advantages

• Low-noise due to multistage centrifugal pumps
• All parts in contact with the fluid are corrosion-free
• Maximum operational reliability due to fully electronic RainControl Professional controller
• High economic efficiency due to needs-based fresh water replenishment
• High reliability, due to flow- and noise-optimised replenishment reservoir

Construction

Automatic rainwater utilisation system with run-down tank and 2 self-priming pumps

Application

Rainwater utilisation in multi-family houses and small trade businesses for saving drinking water in conjunction with cisterns or tanks

Equipment/function

Connection-ready module with compact construction, electrical and hydraulic connections already in place, mounted on vibration-insulated painted steel pipe frame, comprising:

• 2 self-priming, corrosion-free, low-noise MultiCargo MC series centrifugal pumps
• Pressure-side R 1 1/2 joint tubing including transmitter unit with 8 l diaphragm pressure vessel with flow-through design and shut-off device with drain
• Pressure gauge 0-10 bar
• Ball valve on suction and pressure side
• Large-volume fresh water replenishment reservoir (150 litre) with mechanical float valve
• RainControl Professional central switchgear with control electronics including solenoid valves, pressure transmitter 4–20 mA and level sensor with 20 m cable for monitoring levels
• Menu-prompted operation and LCD display of run/fault signals
• Steady system control by means of cyclical pump cycling and integrated test run on idle pumps
• Automatic fault-actuated switchover and peak-load operation
• Automatic water exchange in the replenishment reservoir
• Automatic prevention of lime deposits on the solenoid valve
• Permanent display of rainwater storage tank level, system pressure and operating status via LCD

Scope of delivery

• Two self-priming, MC multistage centrifugal pumps
• 150 l fresh water replenishment reservoir, transmitter unit with 8 l diaphragm pressure vessel,
• RainControl Professional central switchgear with control electronics, level sensor
• With 20 m cable, measurement range 0-5 m.

Type key

Technical data

• Suction head max. 8 m
• Operating pressure max. 8 bar
• Protection class: IP 41
• Connections:
• Pressure pipe/pressure-side joint tubing R 1 ½
• Suction side 2 x 1/4G 1
• Inlets R 1 ¼
• Overflow connection DN 100

Materials

• Pump housing stainless steel 1.4301
• Impeller made of Noryl
• Shaft stainless steel 1.4028
• Mechanical seal made of ceramic/carbon
• Stage chambers made of Noryl
• Diaphragm expansion tank, steel, painted

Description/construction

• Connection-ready double pump water-supply unit as compact module for multi-family houses and public buildings
• For fully automatic supply of rainwater from an underground tank or rainwater storage tank.
• High operational reliability through the use of two separately guided suction lines (to be provided on-site).
• Large-volume replenishment reservoir for needs-based replenishment of drinking water into the consumer network when rainwater storage tank is not full
• Standard-equipped with connection for back-up warning
• Flow-through diaphragm pressure vessel in acc. with DIN 4807 for energy-saving with very small building leaks.
• Consistent system control is achieved through cyclical pump cycling and an integrated test run when the pumps are at rest
• Automatic fault-actuated switchover and peak-load cut-in guarantee maximum system availability.
• Drinking water replenishment is fully automatic and demand-optimised
• Pump-operation-dependent water replacement in the replenishment reservoir is also performed automatically.
• With integrated electronic motor protection, integrated dry-running protection system for pump unit as well as automatic protection of the solenoid valve against lime deposits
• Control device displays extensive signals; it is also equipped with potential-free contacts for collective run signals and collective fault signals
• Operation and parameterisation of the fully electronic RainControl Professional controller is performed by means of menu-driven function keys
• Permanent display of rainwater storage level, system pressure and operating status via LCD
• System is ideal for connection to building automation system