Multimat rainwater unit
€1,779.05*
- Rainwater unit for automatic control and replenishment
- compact and quiet in the house thanks to submersible pump in the cistern
- water conveyance from the rainwater storage tank directly to the consumers
- on-demand replenishment of mains water into the cistern
- with submersible pressure pump Multigo 205
- only 0.2 watts in standby mode thanks to integrated ZETA 02
Available, delivery time: 2-5 days
The Multimat rainwater unit uses a submersible pump to pump rainwater out of the storage tank and feeds it under pressure into the rainwater pipe network . It controls the system, checks the level of the storage tank and, if necessary, automatically ensures that mains water is fed into the rainwater storage tank.
The Multimat works with two separate electric cables from the cistern to the wall-mounted unit. This ensures simple installation and long-term operational reliability . Two sockets must be provided on site.
Dimensions of the Multimat wall console (in mm): W 310 x H 310 x D 150
Scope of delivery
Wall console in the house with:
- Zeta 02 pump controller, switch-on pressure 1.5 bar with manometer and operating display
- free mains water outlet with solenoid valve in 1⁄2" connection hose made of special rubber with stainless steel braiding, ball valve with dirt trap
- Wall bracket made of stainless steel with mounting parts
- Labelling set
- Protective cover
Submersible pump in the cistern:
- Multi-stage submersible pressure pump Multigo with baseplate (22 x 22 cm) made of stainless steel, 20 m connection cable and 3 m lifting rope. Pressure side with 1" nozzle with backflow preventer.
- Float switch, with switch lever and clamp with 20 m cable
- Intermediate plug
- Floating suction coarse filter SAGF made of stainless steel, mesh size 1.2 mm with highly flexible suction hose in 1".
The installation and operating instructions for this product are provided in German and English only. By purchasing this product, you agree to these instructions.
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Worldwide shipping
FREE SHIPPING WITHIN GERMANY FOR ORDERS OVER €50.
Once your order has been placed, you will receive a confirmation email informing you that our shipping team has received your order. Once your order has been processed, you will receive an email notification with your tracking information. Shipping costs will not be refunded in the event of a return. We ship with:
Structure and mode of operation
The MULTIMAT rainwater unit is designed for use in detached houses and apartment buildings, but can also be used in small commercial units. It consists of two units: the wall console with control and mains water top up in the house and the submersible pressure pump with float switch and suction filter in the cistern. If a rainwater tapping point is opened, the control unit detects the pressure drop and switches on the pump. The rainwater is transported directly from the cistern to the points of use. The pressure in the rainwater pipe can be read on the display.
Quiet and space-saving
Since the pump is located in the cistern, the space required in the house is significantly less than with other solutions. Pumping noises are not audible. Apart from the flow of water, it is absolutely quiet in the house.
Pump Multigo 205 or 407
The robust Multigo submersible pressure pump can build up a pressure of almost 5 bar. Several storeys or long discharge pipes are no obstacle for it. It is available in two power ratings, depending on your needs.
The smaller Multigo 205 delivers 80 l/min, while the more powerful Multigo 407 moves up to 125 l/min.
Rainwater unit
Wall console with the automatic switch for controlling the pump.
Pump Multigo
The rainwater storage tank contains the underwater pressure pump with floating suction filter.
Floating coarse suction filter
In order to maintain the best possible water quality at all times, a floating suction filter is connected to the submersible pump. It has a stainless steel filter mesh with a mesh size of 1.2 mm. It is connected to the pump via a hose and hangs on a floating ball about 20 cm below the water surface. Exactly where the water is particularly clear, because heavy particles sink to the bottom and light ones float to the top.
Mains water top up
If the rainwater tank is empty during a longer dry period, the water supply in the cistern is replenished with mains water. For this purpose, a float switch monitors the fill level of the tank. If the water level falls below the minimum value, the solenoid valve of the mains water top up opens and the water in the cistern is replenished with an average daily requirement. This means that there is always enough water available at all taps. The free outlet prevents the rainwater from coming into direct contact with the mains water, as required by regulation.
Energy-saving
Consumes less than 0.2 Watt in standby mode!
ZETA 02
Together with THM, WISY has developed an efficient, revolutionary control system.
Up to 97% more economical in standby mode
The controls of many rainwater units have a power consumption of up to 15 watts in standby mode. Day and night, 365 days a year. This standby consumption accounts for a large part of the energy required for rainwater harvesting. To counter this, WISY has developed the efficient ZETA 02 pump controller together with the Technical University Hesse THM in Giessen.
It reduces the standby consumption to less than 0.2 watts. This is a small revolution, so to speak: compared to conventional rainwater units, energy consumption in standby mode is reduced by up to 97 %. The ZETA 02 is part of the standard equipment of the MULTIMAT.
Matching Accessories
Other Rainwater units
Article number
| MULTIMAT 205 | RW 9025 | |
| MULTIMAT 407 | RW 9047 |
Technical data
| Equipment | MULTIMAT 205 | MULTIMAT 407 | |
|---|---|---|---|
| Submersible pump in the cistern | Multigo 205 | Multigo 407 | |
| Pump controller | Zeta 02 | ||
| Hydraulic data | |||
| Operating pressure | 4,8 bar | 4,9 bar | |
| Flow rate max | 80 l/min | 125 l/min | |
| Switch-on pressure of the rainwater unit | 1.5 bar | ||
| min. Switch-off pressure of the rainwater unit | 2.2 bar | ||
| Maximum start-up frequency | 20 times per hour | ||
| Pumped media | Filtered rainwater or mains water (no sand content) | ||
| Maximum immersion depth of submersible pump | 20 m | ||
| Electrical data | |||
| Power consumption rainwater operation (max. power / nominal power) | 1,000 W / 600 W | 1,180 W / 750 W | |
| Power consumption mains water operation (max. power / nominal power) | 1,008 W / 608 W | 1,188 W / 758 W | |
| Power consumption stand-by / standby mode | < 0,2 W | ||
| Mains connection | 230 V, 50 Hz, single-phase | ||
| Max. current consumption | 10 A | ||
| Cable for mains connection of pump controller | 1.4 m (3 x 1.0 mm²) with plug | ||
| Submersible pump Connection cable | 20 m (3 x 1 mm²) with plug | ||
| Cable mains connection solenoid valve | 1.5 m (3 x 1.0 mm²) with plug | ||
| Float switch | 20 m (3 x 1 mm²), free cable end | ||
| Protection class against environmental influences | |||
| Submersible pump & float switch | IP 68 | ||
| Water connections of the wall unit | |||
| Pump controller, inlet and outlet | 2 x 1" outside thread | ||
| Free mains water outlet, inlet | ¹/₂" outside thread | ||
| Free mains water outlet, tundish | DN 50 (50 mm) | ||
| Water connections of the submersible pump | |||
| Suction side | 1" nozzle | 1 ¹/₄" nozzle | |
| Pressure side | 1" nozzle with backflow preventer | 1" nozzle with backflow preventer | |
| Noise emission in the house | |||
| Rainwater operation | 0 dB (A) | ||
| Ambient conditions | |||
| max. water temperature | 40° C | ||
| Dimensions | |||
| Wall unit (W x H x D) | 310 x 310 x 150mm | ||
| Submersible pump (diameter x height) | 127 mm x 496 mm | 127 mm x 511 mm |