Wilo-RainSystem AF 400

Automatic rainwater utilisation system with hybrid tank (400 litres) and two non-self-priming pumps from the Medana CH1-L series

• Rainwater utilisation or fresh water replenishment in case of drought in large commercial or industrial buildings

• Module in compact construction that is ready for connection, electronics and hydraulics already hooked up
• Vibration-insulated baseplate with height-adjustable pedestal, made up of:
• Two non-self-priming, corrosion-free, low-noise centrifugal pumps from the Medana CH1-L series
• Large-volume hybrid tank (400 litres) with integrated filling level sensor (cable length: 1.5 m, measurement range: 0 to 1 m), all connections, non-turbulent supply lines, overflow with siphon and connection options for extension module (ordered separately)
• Throughflow diaphragm expansion tank conforming to DIN 4807 for energy savings if there are very small leaks in the building
• Fully electronic EC-Rain switchgear (Easy Control) in a metallic housing, protection class IP54. With control unit electronics including solenoid valve, pressure transmitter 4–20 mA:
• o Two separate LED displays (1 EC(e) booster circuit board to control the feeding pump, 1 EC-Rain circuit board to control the high-pressure multistage centrifugal pumps of the Wilo-Medana CH1-L series) show operating data, controller parameters, operating statuses of the pumps, error messages and history memory
  • Menu navigation with seven-segment display and visualisation
  • Factory-preset parameters for easy commissioning/start
  • Setting of operating parameters and acknowledgement of fault messages using rotary knob
  • Lockable main switch
  • Elapsed time indicator for each pump and for the entire system
  • Dry-running and overflow meter
  • Fault memory for the last 10 faults
  • Level monitoring of the rainwater storage tank with overflow detection and metering
  • Hybrid tank: High water alarm and overflow detection
  • Over/underpressure detection
  • Dry-running protection of pump
  • Calcination protection of the two-way valves
  • Automatic periodic water exchange in the hybrid tank (intervals selectable)
  • Collective run and fault signals via potential-free contacts
  • Optional inputs/outputs (see interfaces)

• Mains connection: 3~230 V (±10%), 50 Hz
• Max. negative suction head: 8 m
• Max. operating pressure: 10 bar
• Protection class: IP54
• Connections:
  • Discharge manifold R 1 ½
  • Inlets Rp 1 ¼, suction side inlets R 1 ¼
  • Overflow connection DN 100

• Pump housing made of 1.4301 stainless steel
• Impeller made of Noryl
• Shaft made of 1.4031 stainless steel
• Mechanical seal made of ceramic/carbon
• Stage chambers made of Noryl
• Diaphragm expansion tank, steel, painted

Rainwater utilisation system ready for connection in compact construction, with all electronics and hydraulics already hooked up and installed on vibration-insulated baseplate with height-adjustable pedestal.

Pipework: R 1 1/2 discharge manifold, including transmitter unit with 8 l diaphragm expansion tank following the volume-flow principle and shut-off device with draining, manometer 0 to 10 bar, and ball valve on the suction and discharge side.

High-volume replenishment reservoir in a hybrid design (holds both drinking water and rainwater) for needs-based replenishment with drinking water in the consumer network when rainwater storage tanks are not full.

Connection for backflow warning is available as standard.

Pumps: Two non-self-priming, corrosion-free, low-noise centrifugal pumps from the Medana CH1-L series.

Operation and parameterisation of the fully electronic EC-Rain switchgear (Easy Control) via menu-driven rotary knob. Display of extensive messages. Available potential-free contacts for collective operation and collective fault signals.

• Factory-mounted rainwater utilisation system ready for connection
• Filling level sensor with 1.5 m cable, measurement range 0 to 1 m
• Installation and operating instructions

• Rainwater storage level indicator
• Individual run/fault signals
• 60 Hz versions
• Extension module AF 400

• Mains connection: 3~230 V (±10%), 50 Hz
• Max. negative suction head: 8 m
• Max. operating pressure: 10 bar
• Protection class: IP54
• Connections:
  • Discharge manifold R 1 ½
  • Inlets Rp 1 ¼, suction side inlets R 1 ¼
  • Overflow connection DN 100

• Pump housing made of 1.4301 stainless steel
• Impeller made of Noryl
• Shaft made of 1.4031 stainless steel
• Mechanical seal made of ceramic/carbon
• Stage chambers made of Noryl
• Diaphragm expansion tank, steel, painted

Rainwater utilisation system ready for connection in compact construction, with all electronics and hydraulics already hooked up and installed on vibration-insulated baseplate with height-adjustable pedestal.

Pipework: R 1 1/2 discharge manifold, including transmitter unit with 8 l diaphragm expansion tank following the volume-flow principle and shut-off device with draining, manometer 0 to 10 bar, and ball valve on the suction and discharge side.

High-volume replenishment reservoir in a hybrid design (holds both drinking water and rainwater) for needs-based replenishment with drinking water in the consumer network when rainwater storage tanks are not full.

Connection for backflow warning is available as standard.

Pumps: Two non-self-priming, corrosion-free, low-noise centrifugal pumps from the Medana CH1-L series.

Operation and parameterisation of the fully electronic EC-Rain switchgear (Easy Control) via menu-driven rotary knob. Display of extensive messages. Available potential-free contacts for collective operation and collective fault signals.

• Factory-mounted rainwater utilisation system ready for connection
• Filling level sensor with 1.5 m cable, measurement range 0 to 1 m
• Installation and operating instructions

• Rainwater storage level indicator
• Individual run/fault signals
• 60 Hz versions
• Extension module AF 400