Intewa RAINMASTER Eco Manuel utilisateur
INTEWA Ingenieur-Gesellschaft für
Energie- und Wassertechnik mbH
Verwaltung: Jülicher Straße 336
Lager: Jülicher Straße 342
D-52070 Aachen
Telefon: 0049-(0)241-96 605-0
Telefax: 0049-(0)241-96 605-10
E-Mail: [email protected]
Internet: www.intewa.de
Rainwater harvesting system combinations
The RAINMASTER Eco can be used with almost all tanks and greywater systems and is an ideal
installation in new buildings and in older single family dwellings undergoing renovation. The most
important examples of system configurations can be found here:
Rainwater harvesting with the RAINMASTER Eco and an underground tank
You can even install below the backwater level (generally above street level)
1: RAINMASTER Eco Rainwater system8: PURAIN Rainwater filter
2: Mains water connection 9: Floating suction filter SAUGSAGF
3: Pressure line set with expansion tank 10: Quiet intake
4: Pressure line to consumer 11: Protective conduit for suction line and sensor cable
5: Float switch 12: Rainwater inlet pipe
6: Suction line 13: MD-100 wall bushes
7: Emergency overflow
Rainwater harvesting with RAINMASTER Eco and a free-mounted
Where the tank is in the house, the overflow has been designed to be backflow proof.
1: RAINMASTER Eco Rainwater system7: Emergency overflow
2: Mains water connection 8: PURAIN Rainwater filter
3: Pressure line set with expansion tank 9: Floating suction filter SAUGSAGF
4: Pressure line to consumer 10: Quiet intake
5: Float switch 11: Rainwater inlet pipe
6: Suction line
Greywater recycling with the RAINMASTER Eco
The RAINMASTER Eco can also be used with greywater systems or other water systems.
1: RAINMASTER Eco Rainwater system6: Suction line carrying processed greywater
2: Mains water connection 7: Emergency overflow
3: Pressure line set with expansion tank 8: Greywater inlet pipe
4: Pressure line to consumer 9: Greywater emergency overflow
5: Float switch
Safety first
The RAINMASTER Eco pump, controller and float switch are run from a 24 V
low voltage supply for added safety. This low voltage is obtained via a
switchable power supply, which can be used on 110-230 volt throughout the
world. The switchable power supply has all the necessary internationally
recognized test certificates. This means, maximum safety during installation
and use of the rainwater system and tank.
Alternatively, the RAINMASTER Eco can also be run directly off a DC supply,
such as a 24 V battery system from a photovoltaic system.
The DVGW-certified RAINMASTER ECO features the required “air gap”. The
so-called “air gaps AA and AB”are the only ones approved for supply of
back-up mains water during water shortages, as per the European standard
EN1717. Regulations state that mains water and processed water should
never come in contact with each other for reasons of hygiene. In this sense,
the RAINMASTER ECO fulfills the world’s highest safety standards.
Mains water top up with “air gap AB”, regarding EN1717
1: Mains water inflow3: Maximum water level
2: Overflow opening 4: Air gap
Distribution dimensions
EU- Pallet weight / Volume: 360 kg/ 1,9 m³
Carton package (H x W x D): 600 x 400 x 260 mm
Carton weight: 12 kg
Volume: 0,063 m³
EU- Pallet (H x W x D) with 28 pcs..:2,00 x 0,8 x 1,20 m
Technical data
Dimensions (H x B x T): 398 x 353 x 200 mm
Weight: 8 kg
Switchable power supply input: 110-230 V AC/50-60Hz
Switchable power supply output: Output: 24 V DC +/- 5%
Voltage input control board: 22-28 V DC
Power input RM Eco 10/ RM Eco 14: 90 W / 130 W
Max. operating pressure: 3,5 bar
Max. Volume flow rate RM Eco 10/ RM Eco 1410 l/min / 14 l/min
Intake level (self priming): See intake diagram
Pump start-up pressure: approx. 2,2 bar
Protion rating: IP 44
Noise level RM Eco 10/ RM Eco 14l: 48 dbA / 58 dbA
Approved mains water primary pressure: 2,5 - 6 bar
Switch float:
Cable lengh x cross section: 15 m x 8 mm
Protection rating: IP 68
Figure with dimensions and components
6: Supplemental supply container12: Vent cock
1: Diaphragm pump 7: Position for fill level indicator
2: Pressure switch 8: Basis controller
3: Intake fitting 9: Mains water stop cock
4: Switchable power supply 10: Expansion tank
5: 3/2-way ball valve 11: Pressure shut-off valve
Pump characteristic line RM Eco 10 and 14
Scope of application and dimensions
As a general rule, all points of consumptions which are eligible
for rainwater harvesting are allowed to connect.The maximum
installation height of a consumtion point above the
RAINMASTER Eco unit should not exceed 9 m (= second floor).
Pressure-side dimensions
In the case of a single family dwelling a limited number of
consumers would be drawing on the rainwater system at any one
time. This means that the RAINMASTER Eco provides them with
an optimized minimum consumption of energy. If several
consumers are simultaneously drawing on the rainwater system at any one time (e.g. several toilets
are flushed at once) then these consumers will share the maximum flow rate of the pump.
The Eco RAINMASTER can be connected as follows:
Toilet and Urinal
You can connect up to three flushing toilets and one urinal.
Washing machine
You can connect up to two washing machines.
Garden and cleaning
One garden water tap can be connected, to which a small watering and
cleaning device can be attached –for example:
A 20 m garden hose with a spray nozzle
A mini lawn sprinkler with a flow rate of up to 2bar/500 l/h (RM Eco 10) or
2bar/700 l/h (RM Eco 14)
A high pressure cleaner with a flow rate of up to 500 l/h (RM Eco 10) or up to
800 l/h (RM Eco 14)
Note: The RAINMASTER Eco is not suitable to be installed where high flow
rate equipment is used. Where the following are used, we recommend the
installation of the RAINMASTER Favorit system:
Sprinkler irrigation systems that can be used non stop for longer than 2 hours
Sprinkler irrigation sytems with a flow rate of more than 500 l/h (RM Eco 10) or
more than 800 l/h (RM Eco 14)
Drip irrigation systems
Intake side dimensions
In practice, the pump automatically starts intake due to decrease in pressure (pipe friction, intake
level) only in a certain range. In this operating range, it evacuates the air from the pump independent
of the suction line (for example, with initial start up operation). The intake characteristic line indicates
the dependence of intake length on the intake level. The determined value must be above the
represented intake line in the diagram. If the intake value is below the intake performance line, then a
charging pump (optional accessory RM-ECO LP) will be necessary to ensure the intake process
proceeds reliably and with sufficient safety.
Note: The charging pump boosts the water intakepressure, so that an intake level of up to 3 m high
can be attained. This means that, the performance curve moves 3 m parallel towards down.
Sample sizes
Example A:
Length of suction pipe = 16 m
Intake level = -2.40 m (Height difference between deepest intake position and pump) = o.k. since the
point of intersection lies above the performance curve
Example B:
Length of suction pipe = 34 m
Intake level = -2.80 m (Height difference between deepest intake position and pump) = not o.k., since
the point of intersection lies below the characteristic curve
Accessories such as charging pump RM Eco-LP (Article :- No: 22 00 97) is required in order to
support intake
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