RAINMASTER Eco
Installation and user manual
WATER, WE’RE IN OUR ELEMENT
www.intewa.com
1. Introduction and scope of application .......................................................................................................... 2 1.1 Modes of operation....................................................................................................................................................................... 3 2. Safety instructions .......................................................................................................................................... 4 3. Scope of delivery ............................................................................................................................................. 5 4. Technical data.................................................................................................................................................. 6 4.1 Device overview and dimensions .............................................................................................................................................. 8 4.2. Dimensioning of the intake line................................................................................................................................................. 9 4.3 Standards, directives, tests ......................................................................................................................................................... 10 5. Overview of components .............................................................................................................................. 11 5.1 Components of basic controller ............................................................................................................................................... 11 5.2 Components of diaphragm pump ........................................................................................................................................... 12 5.2.1 Membranpumpe ....................................................................................................................................................................... 12 5.2.2 Fan ...................................................................................................................................................................................... 12 5.3 Components of the supplemental supply container ........................................................................................................... 13 5.4 Components of electronic 3/2-way ball valve....................................................................................................................... 13 5.5 Components of the pressure line set........................................................................................................................................ 14 6. Installation instructions for RAINMASTER Eco ............................................................................................ 15 6.1 Wall mounting .............................................................................................................................................................................. 15 6.2 Connection to the mains water line ........................................................................................................................................ 16 6.3 Installation on the intake side ................................................................................................................................................... 18 6.3.1 Installation of a protective conduit pipe ............................................................................................................... 18 6.3.2 Layout of the intake line ............................................................................................................................................ 19 6.3.3 Intake line connection ................................................................................................................................................ 20 6.3.4 Installation of the floating intake............................................................................................................................ 20 6.4 Installation of the pressure line set .......................................................................................................................................... 20 6.5 Connecting the emergency overflow ...................................................................................................................................... 22 6.6 Installation and adjustment of the float switch ................................................................................................................... 23 7. Start up and use .............................................................................................................................................. 24 7.1 Start-up in mains water mode .................................................................................................................................................. 24 7.2 Start-up in rainwater mode ....................................................................................................................................................... 25 7.3 Modes of operation and display ............................................................................................................................................... 26 7.3.1 Automatic mode (Switch position I) ....................................................................................................................... 26 8. 9. 10. 11. 12. 13. 7.3.2 Maintenance mode (Switch position II) ................................................................................................................. 26 Trouble shooting in case of problems .......................................................................................................... 27 Maintenance ................................................................................................................................................... 29 Spare parts ...................................................................................................................................................... 30 Optional accessories ...................................................................................................................................... 30 Guarantee ....................................................................................................................................................... 31 Contact / Device number ............................................................................................................................... 32 RAINMASTER Eco manual Vers.1.4f
1
1. Introduction and scope of application
Congratulations on purchasing your RAINMASTER Eco (RM Eco).
The RM Eco is specially designed for rainwater and greywater harvesting in single family dwellings.
Optimised for the water requirements of small families, and using diaphragm pump technology, the
RM Eco is the first rainwater module to offer up to 70 % lower power consumption when compared to
conventional rainwater modules.
The RM Eco is compatible with the following combinations:
Toilet / Urinal:
You can connect up to three toilets and one urinal.
Note:
The maximum installation height for toilets and washing machines,
above the RM Eco control unit, is 6 m. The filling time of toilet cisterns
increases with the simultaneous flushing of 2 or more toilets. If a urinal
is used in parallel to other toilets, then the flow pressure may not
always be sufficient.
Washing machine:
You can connect up to two washing machines.
Note:
If more than one washing machine is connected, or at the same time
for example, the garden is being watered, then depending on the type
of washing machine used, your supply may be interrupted if the water
does not fill fast enough. In that case, you may have to start the
washing machine with a time-delay.
Garden / Cleaning:
For small watering and cleaning tasks, a garden tap can be connected.
From this, the following garden consumers may be supplied:
a 20 m garden hose with spray nozzle, or
a small lawn sprinkler - up to 2bar (29psi) / 500 l/h RM Eco10
a high pressure cleaner - up to 500 l/h RM Eco 10
Note:
A drip irrigation system needs special dimensioning in
combination with an expansion vessel.
RAINMASTER Eco manual Vers.1.4f
2
1.1
Modes of operation
Automatic mode
In Automatic mode, the diaphragm pump supplies rainwater from the tank into the home and to
respective consumers (e.g. toilets etc.). If the tank is empty, this is then detected by the float switch in the
tank which instructs the electronic 3/2-way motorised ball valve to change to the mains water mode. The
suction line is then cut-off and the required mains water is taken from the built-in supplemental supply
container within the RM Eco. When the rainwater tank is filled again with rainwater, the float switch
detects this and the electronic 3/2-way motorised ball valve switches back to the rainwater mode.
Maintenance mode
In Maintenance mode, the 3/2-way ball valve switches permanently to mains water mode, where the
consumer is continuously supplied from the supplemental supply container.
In both modes, the power on and off of the diaphragm pump is done by means of the built-in pressure
switch. The anti-dry running protection of the diaphragm pump, and the stagnation protection of the
supplemental water supply (the regular refreshing of water in the supplemental supply) are automatically
controlled by the unit‘s built-in controller.
An optional fill level status indicator (RM Eco-FS) or an external charging pump (RM Eco-LP) for boosting
water intake can be connected to the unit.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Rainwater unit RAINMASTER Eco
Mains water connection
Pressure line set with expansion tank
Pressure line to consumers
Float switch
Suction line
Emergency overflow
Rainwater filter PURAIN
Floating intake filter
Calming inlet
Protective conduit pipe for suction line
and sensor cable
12. Rainwater line
13. Wall bushing MD100
An example of a rainwater harvesting system with external storage
RAINMASTER Eco manual Vers.1.4f
3
2. Safety instructions
The live components have to be installed only by a qualified electrician. In case of
failure of the electronic device, the product has to be repaired by a qualified
electrician before being operated again. There is a risk of electric shock!
The outlet circuit used for the device has to be secured through a circuit breaker
protected (16 A in several countries). If unavailable, an FI switch with maximum
operating current of 30 mA has to be connected.
These installation and operating guidelines have to be read carefully before
installing the product. The instructions mentioned have to be followed strictly.
Modifications to the product are not permitted, otherwise the warranty becomes
void.
The following points have to be strictly observed during the installation and operation:

Check the product before installation for any visible defects. If defects are present, then the
product must not be installed. Damaged products can be dangerous.

Installations at the fresh water pipeline system have to be only performed by a qualified
installation firm.

A floor drain has to be provided near the installation site, which can collect inadvertent water
discharge (such as with pump defect, pipe breakage etc.) and prevent water damage inside the
building. The brickwork behind the water-carrying system must be protected from water (such
as with water-resistant paint).

Make sure that the existing emergency overflows are connected and adequately sized.

Remove the mains plug if you will be away for more than 24 hours. Lock the fresh water line at
the inlet of the device if you will be away for more than 24 hours

All products must be regularly inspected to maintain proper condition. The minimum
inspection interval is mentioned in the maintenance manual.

Electric devices may be hazardous for children. Therefore children always have to be kept away
from the product. Do not let children play with the product.

Do not install the water-carrying products in locations where the temperature may drop below
0 °C.

Do not install any electric products in flood-prone areas.

The operator is responsible for adherence of the safety and installation guidelines.
RAINMASTER Eco manual Vers.1.4f
4
3. Scope of delivery
RAINMASTER Eco unit
Standard accessory A
(mains water connection)
Wall mounting material and
installation and operating manual
Standard accessory B
(pressure line set)
RAINMASTER Eco manual Vers.1.4f
Standard accessory C
(float switch)
5
4. Technical data
Dimensions (H x W x D):
Weight:
Switching power supply input:
Switching power supply output:
Basic controller input:
Power consumption:
Max. operating pressure:
Max. flow rate:
Intake height (self-priming):
Pump start-up pressure:
Noise level:
Permitted mains water pressure:
Max. height between pump and consumer:
Mains water connection (BSP):
Pressure line connection (BSP):
Intake connection (BSP):
Emergency overflow connection
supplemental supply container:
Protection class:
Floating switch
cable length x diameter:
Protection class:
RM Eco 10
398 x 353 x 200 mm
8 kg
110-230 V AC / 50-60 Hz
24 V DC +- 5%
22-28 V DC
90 W
3.5 bar / 50 psi
10 l/min / 2.64gpm
see intake diagram
approx. 2.4 bar / 34 psi
approx. 50-56 dbA
2.5 - 6 bar /36 – 87 psi
10 m
½” female
¾” female, union nut
¾” male
DN50 /Ø55mm
IP 44
15 m x Ø8 mm
IP68
Performance curve of RM Eco 10
RAINMASTER Eco manual Vers.1.4f
6
Performance curve of the intake of RM Eco 10
RAINMASTER Eco manual Vers.1.4f
7
4.1
Device overview and dimensions
Top view
1.
2.
3.
4.
5.
Bottom view
6.
7.
8.
9.
10.
11.
12.
13.
RAINMASTER Eco manual Vers.1.4f
Diaphragm pump
Pressure switch
Line fitting
Switching power supply
3/2-way motorised ball valve,
intake connection (3/4” male)
Supplemental supply container with
overflow DN50 (Ø55mm male)
Place holder for fill status indicator RM
Eco-FS (optional)
Basic controller
Stopcock for mains water (1/2” female)
Expansion tank
Pressure shut-off valve (3/4” female)
Vent cock
Fan
8
4.2.
Dimensioning of the intake line
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 startup operation). The intake characteristic line indicates the
dependence of intake length on the intake level. The determined value is above the represented intake
line in the diagram. If the intake point is below the intake performance line, then a charging pump
(optional accessory RM Eco-LP) is used to ensure the intake process proceeds reliably and with sufficient
safety.
Note: The charging pump boosts the water intake pressure, so that an intake level of up to 3 m high can
be attained. This means that, the performance curve moves 3 m (9.8 ft) down parallel to the original.
Sample dimensions:
Example A:
Length of suction pipe: = 16 m
Intake level: = -2.40 m (Height between deepest suction point and pump)
 o.k. since above the characteristic curve
Example B:
Length of suction pipe: = 34 m
Intake level: = -2.80 m (Height between deepest suction point and pump)
 not o.k. since below the characteristic curve
 RM-Eco-LP (Art.-No. 22 00 97) charging pump is required
RAINMASTER Eco manual Vers.1.4f
9
4.3
Standards, directives, tests
The RM Eco meets the DIN 1989-4 “Components for Control and Supplemental Supply“ standard for
rainwater harvesting systems. The DVGW mark of approval confirms the presence of the mandatory “air
gap“ (as per DIN EN1717) for secure separation of processed water from the mains water line, which is
integrated into the RM Eco.
1
1.
2.
4
3.
4.
2
3
Mains water inlet
Emergency overflow
Max. possible water level
Air gap = secure separation of mains water and
processed water
Mains water supplemental supply device, Type AB as per DIN EN 1717
The power is supplied via a TÜV GS-certified switchable power supply. All components of the RM Eco are
run on 24 V DC low voltage technology.
The above mentioned device corresponds with the basic safety and health requirements of the EC
directives for machines. Any modification of the device not coordinated by INTEWA will void the
warranty.
This equipment specifically fulfills the requirements of the following EU directives:
EC directives for machines (89/392/EWG) in accordance with 91/368/EWG
EC Low voltage directives (73/23/EWG)
EG Directives for electromagnetic compatibility (89/336/EWG) in accordance with 93/31/EWG
The conformity of the equipment with the above mentioned directives is confirmed by the CE symbol.
Applied harmonized EU standards:
EN 60335-1: 1194/A1/A11/A12/A13/A14, EN 60335-2-41: 1996
Applied standards and technical specifications:
DIN 1988-2, DIN 1989-4, DIN EN1717, DIN EN 13077, BGA KTW
Tests/Monitoring:
Mains water supplemental supply device:
DIN-DVGW mark certified
Mains water supplemental valve:
WRAS mark certified
Switchable power supply:
TÜV Rheinland, TÜV GS approved
RAINMASTER Eco manual Vers.1.4f
10
5. Overview of components
The RM Eco has a modular design. Each component can be separately changed.
5.1
Components of basic controller
Fan connection
Fill level sensor technology
(optional accessory RM Eco-FS)
- 3 = +15 V
(brown)
- 2 = Signal
(black)
- 1 = GND
(grey)
Floating switch
- 2
- 1
(blue)
(brown)
Pressure switch (no polarity)
(blue)
(blue)
Diaphragm pump/ Fan
- +24 V
(red)
- GND
(black)
3/2-way ball valve
The stagnation protection can be activated via a code
switch on the PCB. For this, the front plate must be
removed.
a.)
Stagnation protection is deactivated (Factory
setting)
- Signal/GND
- GND
(green)
(black)
- +24 V DC
(red)
Charging pump (optional)
- +24 V DC
(red)
- GND
(black)
24 V DC switching power supply
- Ø 5.5 Jack connector
- optional: Connection to 24 V
battery supply
ON
1 2
b.) Stagnation protection is activated
Every two weeks, the supplemental water supply is
changed
ON
1 2
RAINMASTER Eco manual Vers.1.4f
11
5.2
Components of diaphragm pump
5.2.1 Membranpumpe
1.
2.
3.
4.
5.
6.
Supply cable (red/black
Suction connection (union nut/hose
Pressure connection (fix)
Non-return valve
O-ring seal
Pressure switch with fastener
Pump for Rainmaster Eco 10
5.2.2 Fan
The fan cools the pump by a uniform air flow. If no continuous
operation is provided, the fan can be disconnected
electronically. This saves about 6W power. Nevertheless, if the
pump is operating continuously (without fan) with high back
pressure and the pump is getting too hot, the internal pump
temperature sensor will stop the pump. After cooling down the
pump starts automatically again.
RAINMASTER Eco manual Vers.1.4f
12
5.3
Components of the supplemental supply container
1
2
3
2 cm
6 cm
4
5.4
5
1. Lid
2. Emergency
overflow rim
3. Floating valve
4. Protective sieve
5. Floating body
The floating valve keeps the water level
constant in the supplemental supply
container. The maximum water level
should be approx. 2-3 cm below the
overflow rim when the floating valves
closed (backside of the container).
The correct distance of the float (5) to the
horizontal lever is factory set at 6 cm.
Note: If an overflow occurs due to
continuous dripping from the valve, the
valve must be decalcified (see Maintenance).
The floating valve incorporates a protective
sieve.
Components of electronic 3/2-way ball valve
The ball valve selects between rainwater intake and mains water intake. The built-in display shows
which mode is currently selected.
Position mains water mode
Pump takes water from the supplemental supply
container
Position rainwater mode
Pump draws water from the rainwater tank
RAINMASTER Eco manual Vers.1.4f
13
5.5
Components of the pressure line set
The pressure line set contains an expansion tank, which is necessary to ensure the silent operation of the
system. A pre-pressure of 2.0 bar is preloaded at manufacture. The expansion tank ensures that the
vibration created by the operation of the pump is not transmitted through the piping system.
Procedure for pre-pressure inspection / preparation:
1.) Disconnect the mains power to the RM Eco.
2.) Close the pressure shut-off valve.
3.) Open the vent cock for draining the system pressure to 0 bar.
4.) Check the air pressure in the expansion tank with an air pump
(with pressure gauge). You can use a bicycle pump or car tyre
pump.
Should the primary pressure be too low, use your pump to
increase it to the desired pressure.
5.) Reconnect the mains power to start the unit again and drain the
water, via the vent cock, until bubble free water comes out.
6.) Close the vent cock and open the pressure shut-off valve.
The system is now ready to use.
RAINMASTER Eco manual Vers.1.4f
14
6. Installation instructions for RAINMASTER Eco
The foam and polystyrene parts 1-3 are part of the transport
safety and must be removed before installing the RM-Eco.
6.1
Wall mounting
275 mm
Ø 8 mm
>450 mm
>200 mm
340 mm
>400 mm
RAINMASTER Eco manual Vers.1.4f
260 mm
>300 mm
The RM Eco is mounted on the wall using the mounting material provided. The lid, bottom and lateral
distances indicated should be adhered to when mounting to provide clear maintenance access.
Ø 8 mm
15
The RM Eco is fixed horizontally with of Ø8 mm raw plugs and
screws. An additional hole is also drilled 260 mm top and right
of the upper mounting holes for connection of the expansion
tank mounting bracket.
In order to avoid vibrations, the RM Eco must be fixed with all
four screws.
6.2
Connection to the mains water line
The connection to the mains water line is done with the provided flexible hose with stopcock.
Note:
The flexible hose must not be mounted with tension, since the internal float valve is pressed against the
inner wall from here.
All provided flexible hoses have gland screws with flat seals. The rubber seals must be present. Additional
sealing material must not be used at gland nuts!
Screw the gland screw into the container connection and
carefully tighten with a 30 mm fixed wrench.
RAINMASTER Eco manual Vers.1.4f
16
Screw the gland screw on the other end of the flexible pipe
into the stopcock mounted in the main water line.
RAINMASTER Eco manual Vers.1.4f
17
6.3
Installation on the intake side
The installation of the intake requires special attention, since only correct mounting and sealing ensures
trouble-free operation of the system. For fault-free functioning, ensure the guidelines concerning intake
height and intake length are followed carefully (see section 4.2.).
1.
2.
3.
4.
5.
Intake connection to RM Eco
Intake line
Wall bush
Protective conduit pipe
Floating intake
6.3.1 Installation of a protective conduit pipe
The intake line must be installed in a (e.g. DN100) protective conduit pipe in order to ensure all intake
lines and pipes can be accessed freely at any time. In order to avoid water accumulating in the conduit, it
must be installed with > 1 % slope back towards the tank.
In general, all lines carried in the protective pipe should pass through a wall bushing (i.e. INTEWA MD100 Article No. 61 00 50) at the house. Through this bushing, the intake pipe and the float switch cable
are routed and sealed by a pressed rubber plate. This prevents water from outside entering the
basement/garage/utility room. The wall bush must be mounted as per instructions so that the intake line
is never squeezed (reduction of cross section!).
RAINMASTER Eco manual Vers.1.4f
18
6.3.2 Layout of the intake line
Only an internally reinforced flexible (resistant against vacuum) hose can be used as the intake line. This
means we can use a floating intake in the tank. The internal diameter of the intake line must be at least
Ø 13 mm. The INTEWA intake hose (HORIZON ½", Article No. 61 00 16) is designed for this requirement.
In order to avoid potential leaks at connection points, it is strongly recommended that the intake hose
(from the intake filter in the tank all the way to the RM Eco unit) should be one piece – containing no
joins.
Warning:
The internal diameter of the intake hose must be at least D=13 mm
in order to obtain full volume flow.
No water filter may be used in the intake line, since the gaskets are
not designed for suction pressure. The underpressure for intakes
cannot be built up later and the air enters the intake line.
PVC corrugated hoses are not suitable as rainwater suction lines.
Experience has shown that after some time these become brittle
and permeable to gas/air. The suction pressure for intakes cannot be
built up later and the air enters the intake line.
No flexible hoses can be used in the intake region since these soft,
internal rubber coated hoses are constricted with suction pressure.
The intake hose line must never bend, kink or be constricted in any
way.
RAINMASTER Eco manual Vers.1.4f
19
6.3.3 Intake line connection
The intake line is routed through the wall into the house, and connected to the RM Eco without tension.
The gland screw is to be tightened to the RM Eco connector
only by hand.
As the intake hose should not exert any force on the coupling
to the unit, the pipe should be securely fastened to the wall
with separate pipe clamps.
6.3.4 Installation of the floating intake
For best water quality, we recommend the intake line in the tank is installed as a floating intake.
The accessory product SAUGSAGF ½" (Article No. 21 01 33) meets
this requirement. The rainwater is drawn from just below the
water surface where the water is the cleanest. The integrated
non-return valve ensures that water is always present in the
suction line. The intake sieve provides additional protection
against debris clogging the pump.
If the intake accessory is installed on site, make sure that the
intake has a non-return valve, as well as an intake filter. The intake
is mounted in such a way, that with the tank being empty, the
intake sits at a minimum distance of 20 cm from the bottom of
the tank. In this way, the intake of base sediment is safely
prevented.
6.4
>20 cm
Installation of the pressure line set
The pressure line set (see section 3) establishes the connection between the pump and pressure line
system.
RAINMASTER Eco manual Vers.1.4f
20
The expansion tank is fixed to the wall with the pipe
clamps provided. The vent cock is equipped with a gasket
ring so that it can be screwed directly into the T piece
without additional gasket.
The pressure shut-off valve, incorporating the pressure
gauge, is then connected into the line by screwing the flat
sealing gland screw into the expansion tank T-piece.
The flexible hose connects the pump pressure line to the
other side of the expansion tank T-piece. These line
connections are made with flat sealing gland screws.
Note: The pre-pressure of the expansion tank has to be
checked (see section 5.5).
RAINMASTER Eco manual Vers.1.4f
21
6.5
Connecting the emergency overflow
The RM Eco has an emergency overflow line (DN 50) which must be connected to the waste drainage
system of the building. The drainage line must be of a size to accommodate a maximum volume flow rate
of 20 l/min.
The position of the backwater level must be taken into consideration while connecting to a drainage
system, in order to prevent backflow of drainage water from the open sewer line (design according to
the DIN EN 1717) entering the RM Eco.
The position of the backwater level determines the type of line:
a)
Backwater level above the emergency overflow
drainage height of the supplemental supply
container:
Connection of the emergency overflow must be done
by a lifting system.
b)
a.)
b.)
Backwater level below the emergency overflow
drainage height of the supplemental supply
container:
Connection of the emergency overflow to a
ventilated channel line (DN 50) is done via a siphon.
RAINMASTER Eco manual Vers.1.4f
22
6.6
Installation and adjustment of the float switch
1.
2.
3.
4.
5.
6.
7.
Floating switch cable
Wall bushing
Conduit pipe DN100 (grade > 1%)
Floating intake line
Counter weight
Floating switch
Cable bracket
The floating switch cable is led to the RM Eco via a protective
conduit pipe. The cable adjustment for the floating switch is
installed in an accessible area of the tank opening so that it
is possible to access (such as for inspection and
maintenance purposes) even with a full tank level. Height
can be adjusted by means of the built-in cable adjustment
(cable bracket).
The intake line is installed in such a way that the floating ball
just touches the bottom of the empty tank (see
section 6.3.4). The floating switch counter weight (A) is
mounted 15 cm above the floating switch. The safety
distance between the intake filter and the bottom of the
floating switch must be at least 10 cm (B), allowing the
floating switch enough cable length for free movement.
The floating switch is electrically connected to the unit
controller (see section 5.1).
RAINMASTER Eco manual Vers.1.4f
A=15 cm
B=10 cm
23
7. Start up and use
7.1
Start-up in mains water mode
1. Check that all lines are connected.
Select maintenance mode = Switch position II.
Open the mains water line stopcock so that the supplemental
supply container is filled with water.
2. Close the pressure shut-off valve.
3. Open the air vent (hold a bucket of water under the air vent)
and start the pump by plugging in the mains power.
Let the water run from the air vent into the water bucket until
there is no more sign of bubbles (a clear stream).
4. Close the air vent.
5. Open the pressure shut-off valve and release the air from the
(house) line (e.g. by flushing the toilet several times).
Close the pressure shut off valve. The pump will automatically
switch off when the maximum system pressure is reached.
RAINMASTER Eco manual Vers.1.4f
24
7.2
Start-up in rainwater mode
The rainwater mode can only operate if there is sufficient water in the
rainwater cistern. In this case the tank display does not light up.
1.) Select automatic mode = Switch position I
2.) Close the pressure shut-off valve.
3.) Open the air vent (hold a bucket of water under the air vent) and
start the pump by plugging in the mains power.
The motorised ball valve will move into the “rainwater“ intake
position.
Let the water run from the air vent into the water bucket until
there is no more sign of bubbles (a clear stream), so that all the air
is removed from the suction line.
4.) Close the air vent.
5.) Open the pressure shut-off valve and release the air from the
(house) line (e.g. by pressing the toilet flush several times).
Close the pressure shut off valve (house line). The pump will
automatically switch off when the maximum system pressure is
reached.
RAINMASTER Eco manual Vers.1.4f
25
7.3
Modes of operation and display
7.3.1 Automatic mode (Switch position I)
I
II
Automatic mode is the normal operating mode, and is selected by
Switch position I. This is indicated by the upper LED. In this mode,
the unit automatically switches from rain water to mains water, if
the float switch detects the rainwater tank is empty.
Two operating modes can be used according to the two positions
of the float switch, both of which are indicated by the lower LED:
 Rainwater mode, if this light is OFF it
indicates that the rainwater tank is full
Automatic mode
„Rainwater mode“
I
II
 Mains water mode, if this light is ON it
indicates that the rainwater tank is empty
Automatic mode
„Mains water mode“
7.3.2 Maintenance mode (Switch position II)
I
II
The maintenance mode is selected by Switch position II. This mode is
selected only when maintenance is to be performed in the tank. The
RM Eco then operates in continuous mains water mode independent of
the floating switch.
Maintenance mode
„Mains water mode“
RAINMASTER Eco manual Vers.1.4f
26
8. Trouble shooting in case of problems
Description of error
Cause
The pump is not starting and The pump has shut down after
running non-stop (2 hours
all LEDs are flashing
continuous operation) due to:
a) Anti-dry running protection
- Air in intake line, as float
switch has not registered an
empty tank and did not
switch to mains water mode
- Air in intake line because of a
leakage
I
II
Solution
a)
- Check the functioning and position
of the floating switch (see
section 6.3.4). After this restart
- Seal connection points and the
intake line and restart
b) Avoid continuous use of more than
two hours
b) Continuous use by
connected fixture
Restart from an Emergency Stop:
-
RESET by pulling out the mains plug for at least 5 seconds until all the LEDs have gone out.
-
Plug in the mains plug.
(Should there no longer be water in the line and/or no pressure is built-up, then air has
entered the intake line. The air must be evacuated from the air vent as described in
section 7.2.
Description of error
Cause
Solution
Pump does not start and no
LED is shining
No power
Check mains supply
Pump does not start but LED a) Temperature protection
display is o.k.
switch, pump is overloaded
due to continuous use or
pulsating working modus
Pump does not turn off
Pump is ticking
a) The pump will automatically restart
if motor is cooled. Find out the
reason for overload and fix it
b) Defective pressure sensor
b) Change pressure sensor
c) Carbon brushes have worn
out or are defective
c) Change pump
a) Power- off pressure is not
obtained (< 3 bar) because
of air in the system
a) Evacuate air from the pipeline
system (see section 7.2)
b) Power- off pressure has
exceeded ( > 6,0 bar/90psi)
as pressure switch is
defective
b) Exchange pressure switch.
a) non-sealed leaky fixture
a) Fix leakage
b) withdrawal of water is too
low from the fixture
b) Check fixture
RAINMASTER Eco manual Vers.1.4f
27
Description of error
Cause
Pump ticks and the green
LED light flashes ON/OFF
regularly
The power consumption of the
pump is too high (protection
switching of the power supply is
activated), because
a) Change pressure switch
a) the pressure switch is
(see chapter 5.2)
defective
(pressure > 6 bar/90psi)
b) Change pump
b) Pumping motor is blocked
Pump does not attain the
maximum pressure of 3 Bar
Air in the system
Solution
Evacuate air from the line system
(see chapter 7.2)
In Rainwater mode, the flow a) The intake filter is clogged
rate is too low or pump does b) The intake hose is bent
not feed any water
c) The suction line or the lines
are not sealed
d) no switchover to mains water
since float switch is
incorrectly positioned or is
defective
a) Clean intake filter
b) Check intake line
c) Check intake line and connections
In mains water mode, the
flow rate is too low or the
pump does not feed any
water
a) Check pre-pressure of mains water,
clean filter sieve in the entry of
supplemental supply valve (see
chapter 5.4)
b) Change 3/2-Way ball valve
a) Not enough or no water in
the units supplemental
supply tank
b) 3/2-way ball valve does not
switch over to mains water
mode
System does not
a) Float switch is not correctly
automatically switch from
positioned
rainwater to mains water and
vice versa.
b) Float switch is defective
c) 3/2-Way ball valve does not
switch over in spite of the
float switch signal
a.)
Silencer is not working in the
The pump can be heard
expansion tank
through the walls of the
building
b) Pump connection or piping is
touching the unit cover
Separation chamber is
Mains water valve is calcified
blocked (water spills into the
overflow)
RAINMASTER Eco manual Vers.1.4f
d) Check the functioning and position
of the float switch (see
section 6.3.4), then restart
a) Check the functioning and position
of the float switch (see
section 6.3.4), then restart or
change float switch
b) Change float switch
c) Change 3/2-way ball valve
a) Reset the expansion tank‘s primary
pressure to 2.0 bar (see section 5.5)
b) avoid allowing contact between the
unit cover and the pump and
piping
Decalcify mains water valve for 24 hrs.
(see section 9)
28
9. Maintenance
Description
Expansion vessel pre-pressure:
Maintenance interval
6 months
For description of inspection and preparation of
the pre-pressure, see section 5.4
Supplemental supply valve:
6 months
If the mains water valve continuously drips, then
this must be decalcified. Therefore, remove the
entire valve from the tank and place it in a
decalcifying solution (citric acid) so that the inlet
and outlet are fully submerged. Move the floating
arm several times so that the decalcifying solution
penetrates the valve diaphragm chamber as well
(24 hours exposure time). If the dripping
continues after maintenance, then the valve must
be replaced.
Cleaning the intake filter:
6 months
- Clean the sieve manually
Cleaning the charging pump (if provided):
6 months
- Take off cap and clean filter foam
- Twist the pump to open, remove rotor and clean.
Specific details in RM-Eco-LP manual
RAINMASTER Eco manual Vers.1.4f
29
10. Spare parts
Description of article
Diaphragm pump RM Eco 10, inclusive pressure switch
Pressure switch
Line fitting set (Intake side / Pressure side)
Switching power supply 24 VDC, 4 A for RM Eco 10
3/2-way ball valve
Supplemental supply container
Floating valve for supplemental supply container
Basic controller
Expansion tank RM Eco 10 (1 litre)
Floating switch 15m
Figure no.
(see page 5)
[1]+[2]
[2]
[3]
[4]
[5]
[6]
[3] s. p. 11
[8]
[10]
Order name
RM ECO P10
RM ECO PD
RM ECO TS
RM ECO N10
RM ECO KH
RM ECO B
RM ECO NSP
RM ECO BPL
RM ECO AG1
RM ECO SCHW15
11. Optional accessories
RM ECO-FS, Art. No.: 220090
The RAINMASTER ECO-FS is a separate fill level indicator for installation in the RM Eco unit. By using this,
you will always have the fill status of the tank in view.
The RM-ECO-FS contains the display module, the sensor system and the control line for the tank. The
display module is simply installed in place of the blank panel on the front cover of the RM Eco. The
connection to the RM Eco main board is done via a ribbon cable.
RAINMASTER Eco manual Vers.1.4f
30
RM ECO-LP, Art. No.: 220097
The RAINMASTER Eco-LP is a separate charging pump for boosting the water intake line pressure from
higher intake depths or longer intake lengths.
The RM ECO-LP contains the submersible pump the intake filter, non-return valve and the floating ball.
The connection to the RM Eco main board is done via a ribbon cable.
12. Guarantee
INTEWA GmbH guarantees this unit for 24 months from the date of purchase. Kindly keep the sales
receipt as proof of this date.
Within the guarantee period, INTEWA GmbH reserves the right to either repair or replace faulty parts at its
own discretion.
The warranty does not cover any damage due to improper use, wear and tear, or intervention by third
parties. The warranty does not cover any defects which may only minutely affect the value or usability of
the device.
RAINMASTER Eco manual Vers.1.4f
31
13. Contact / Device number
For customers in Germany:
For any queries, ordering of spare parts, as well as in case of service, kindly contact INTEWA GmbH
directly, quoting your product‘s model and identification numbers and the purchase invoice details, at:
INTEWA GmbH
Jülicher Straße 336
52070 Aachen
Tel.: 0049-241-96605-0
Fax: 0049-241-96605-10
Email: info@intewa.de
Internet: www.intewa.de
For customers in other countries:
For any queries, ordering of spare parts, as well as in case of service, kindly contact your installer or the
authorised importer, quoting your product‘s model and identification numbers, and the purchase
invoice details.
Your RAINMASTER Eco’s identification number is displayed on the right hand top side of the back
mounting plate. The unit’s main housing must be removed to see this.
RAINMASTER Eco manual Vers.1.4f
32