Wilo-RainSystem AF 400
Make use of rainwater comfortably in large buildings.
Make use of rainwater comfortably in large buildings.
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.
Recommended services
Your 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
Product features
- Drinking water replenishment connection
- Fully electronic EC switchgear (Easy Control) with Modbus RTU interface
- Optional Gateway for remote monitoring
- Hybrid replenishment reservoir (volume: 400 litres) with overflow conforming to EN 1717 (free drain type AA)
- Diaphragm expansion tank (8 litres)
- Flexible connections on the discharge side
- Wilo-Medana CH1-L non-self-priming centrifugal pumps with IE2/IE3 motors
- Pre-assembled system on baseplate with height-adjustable pedestal
Environmentally friendly features
- IE2/IE3 motor and flow-optimised design saves energy
- Modular design with easily replaceable and corrosion-resistant components ensures long service life
- Compact design saves space during transport
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
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.
Scope of delivery
- Factory-mounted rainwater utilisation system ready for connection
- Installation and operating instructions
Options
- Rainwater storage level indicator
- Individual run/fault signals
- 60 Hz versions
- Extension module AF 400
Installation and operating instructions
Wilo-RainSystem AF 400
| Article Number | 2543936 |
| Edition | 2024-07 |
| Number of pages | 40 |
| Language | en |
PDF (6 MB)Wilo-Medana CH1-L, Wilo-Medana CH3-LE
| Article Number | 4234327 |
| Edition | 02/2022 |
| Number of pages | 24 |
| Language | en |
PDF (5 MB)Wilo-Control EC-Rain
| Article Number | 4255844 |
| Edition | 2024-07 |
| Number of pages | 72 |
| Language | en |
PDF (10 MB)Wilo-Control EC-Rain, EC-rh
| Article Number | 4255941 |
| Edition | 2024-08 |
| Number of pages | 64 |
| Language | en |
PDF (9 MB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (327 KB)