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
