Wilo-RainSystem AF 400
Make use of rainwater comfortably in large buildings.
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Description
Through the targeted use of rainwater, the Wilo-RainSystem AF400 is a particularly sustainable system for saving fresh water. The factory pre-assembled system can be installed quickly. The EC switchgear and Green Button Technology allow it to be put into operation swiftly.
The system is equipped with a replenishment reservoir with a volume of 400 litres for continuous operation. It switches automatically to drinking water replenishment if the rainwater level is low.
Low energy consumption is ensured by the Wilo-Medana CH1-L integrated, non-self-priming centrifugal pump with IE2/IE3 motor technology in combination with the flow-optimised design of the replenishment reservoir.
The power supply in the low-voltage range, self-protection routines (such as dry-running protection) and corrosion-resistant components provide for a high degree of operational reliability and durability.The system can be integrated in an existing building management system via a Modbus RTU interface. Extended communication via a gateway is optionally available.
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Advantages
- Compact, factory pre-assembled design enables easy installation
- Simple and intuitive operation via EC switchgear combined with Green Button Technology
- Automatic replenishment with drinking water permits reliable, continuous operation even in drought conditions
- Flow-optimised design and deployment of IE2/IE3 motors enable energy-saving operation
- Self-protection routines, control in the low voltage range, the use of corrosion-resistant components and the optional integration into a building management system facilitate high operational reliability
- Maintenance notifications in the fault display via error codes
- Remote monitoring possible through the integration into building automation via standard Modbus and optional extended communication via a gateway
- Quiet operation for high level of user comfort
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Technical Features
Design
Automatic rainwater utilisation system with hybrid replenishment reservoir with 400-litre volume and 2 Medana CH1-L non-self-priming, horizontal, multistage centrifugal pumps. System installed on a vibration-insulated baseplate in a compact design including an 8-litre diaphragm expansion tank and fully electronic EC control unit (Easy Control) with control electronics and level control for up to two feeding pumps (rainwater storage tank pump).
Application
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Commercial and industrial rainwater utilisation for conserving drinking water as a hybrid system in conjunction with storage tanks or tanks
Equipment/function
- 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:
- Two separate LED displays (1 EC(e) booster printed circuit board to control up to two feeding pumps (rainwater storage tank pumps), 1 EC-Rain printed circuit board to control the high-pressure multistage centrifugal pump 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
- Automatic periodic water exchange in the hybrid tank (intervals selectable)
- Collective run and fault signals via potential-free contacts
- Optional inputs/outputs (see interfaces)
Typekey
Example: Wilo-RainSystem AF 400-2Medana L205/EC2+1 RainSystem System for rainwater utilisation for commercial use AF Series (Aqua Feed) 400 Nominal content (l) of hybrid tank 2 Number of pumps Medana Pump series 2 Rated volume flow (m3/h) 05 Number of single pump stages EC2+1 EC-Rain switchgear (Easy Control); number of pressure-boosting and rainwater storage tank pump(s) Technical Data
- 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
Materials
- 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
Construction
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.
Options
- Rainwater storage level indicator
- Individual run/fault signals
- 60 Hz versions
- Extension module AF 400
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