Intewa RAINMASTER Eco-FS User manual

WATER,WE´REINOURELEMEN
T
www.intewa.com
RAINMASTER Eco-FS
Installationandusermanual

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Table of contents
1.Introduction and scope of application...................................................................................................................... 2
1.1Functionality.............................................................................................................................................................. 2
2.Safety tips............................................................................................................................................................................. 3
3.Scope of delivery............................................................................................................................................................... 3
4.Technical Data.................................................................................................................................................................... 4
5.Electrical connections and installation...................................................................................................................... 4
5.1Installation of display in Rainmaster Eco.................................................................................................................. 4
5.2Electrical connections in the RAINMASTER Eco............................................................................................ 5
5.3Electrical connections to the sensors ............................................................................................................... 6
5.4Installation of the sensors in rainwater storage tank ................................................................................. 7
6.Calibration ........................................................................................................................................................................... 8
7.Modes of operation.......................................................................................................................................................... 9
8.Trouble shooting in case of problems....................................................................................................................... 9
9.Maintenance......................................................................................................................................................................10
10.Replacements parts.........................................................................................................................................................10
11.Contact.................................................................................................................................................................................10

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1. Indroduction and scope of application
Congratulations on your purchase of the RAINMASTER ECO FS (RM Eco-FS) rainwater-level indicator,
which we developed especially for use in the (RM Eco) rainwater harvester.
1.1 Functionality
The rainwater-level indicator shows the water level in the tank by means of light-emitting diodes (LEDs)
as a percentage of the maximum water level. Contactless measurement of the water level is achieved by
a two-wire sensor cable. The capacitive measuring procedure permits the contactless recording of the
current water level between the two sensor cables.
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System overview: RAINMASTER Eco with RAINMASTER Eco-FS rainwater-level indicator
1. RAINMASTER Eco with RAINAMSTER Eco-FS
2. Mains water connection
3. Membran prusure vessel
4. Water delivery outlet
5. Floating rainwater level switch
6. Rainwater suction pipe connection
7. Emergency overflow
8. Rainwater filter PURAIN 100
9. Floating suction filter
10. Sensor cable for rainwater-level indicator RM Eco-FS
11. Calming pot
12. Empty cable duct for suction, float-actuated switch
cable, control cable, etc.
13. Rainwater intake pipe

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2. Safety tips
Before installing the device, please read the assembly and user instructions enclosed carefully. The
information in these instructions must be followed precisely; otherwise, all warranty claims will be
invalidated. The operator is responsible for observing the safety and installation requirements.
Installations on the drinking water supply network must only be performed by an approved installation
company.
3. Scope of delivery
[1] Display unit incl. front display
[2] Sensor socket with encapsulated sensor electronics
[3] Sensor cable (two-wire, length 3 m)
[4] Control cable (three-wire, length 20 m)
[5] Instructions for use (not illustrated)
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Two piece front panel at RM Eco
Remove left yellow front panel holder
4. Technical Data
Display:
Dimensions of front plate with board (HBD): 110 x 62 x 30 mm
Operating voltage: 24 V DC (Connection via flat cable to RM Eco)
Control cable: 20 m, 6 mm, 3 x 0.5 mm², up to 80 m extendable
Sensor unit:
Dimensions of sensorsocket (x H): 90 x 57 mm
Operating voltage: 15 V DC
Sensor cable: 2 x Ø 4mm
Length of sensor cable: 3 m (shorten up to 1.2m is permissible)
5. Electrical connections and installation
5.1 Installation of display in RAINMASTER Eco
The left front panel of the RAINMASTER Eco and the
associated yellow holders of front panel are removed.
The display panel is fitted with screw at this point. The
aluminium display is installed after connecting the display
panel with the basic panel of the RAINMASTER Eco by
means of ribbon cable (refer Chap. 5.1).

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5.2 Electrical connections in the RAINMASTER Eco
Flat cable plug connection
Connection for control board RM ECO with fill level indicator RM Eco-FS via a flat cable plug
Connection to the control board RM Eco
Sensor 3: Control cable : brown (+ 15 V DC)
Sensor 2: Control cable: black (+ signal)
Sensor 1: Control cable: grey (GND)
A
A
B

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5.3 Electrical connections to the sensors
Sensor cable:
blue: Sensor cable, blue
black: Sensor cable ,black (GND)
Control cable:
S3: Control cable, brown ( +15 V DC)
S2: Control cable, black (+ signal)
S1: Control cable, grey (GND)
The laying of the control cable from RAINMASTER Eco to
rainwater storage is done in a shielded hose. If a cable extension
is required, then this cable should be water-proof. The total
length of the control cable must not exceed 80 m.
The polarity of the cable is to be observed at all times!

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S Bottom distance o
f
the weight (approx. 5-10 cm)
A Distance of the 0%-level from the sensor cable end
B Display range 0-100%
C Min. 20 cm safety distance from the max.
water level
D Safety distance from the inlet to the 0%
level of min. 10 cm
5.4 Installation of sensor in rain water storage tank
1. Determine the installation position of the sensor housing in the dome shaft or in the upper area of
the tank. The safety distance to the maximum water level is approx. 20 cm. The sensor cable hangs
freely in the tank over its entire length and is shortened accordingly. (Winding up the excess sensor
cable distorts the measuring result!)
2. Determine the sensor length from the lower cable gland of the sensor housing to the sensor cable
end. Shorten with a 7 cm addition (cable length inside the sensor socket). Length = A + B + C + 7 cm.
3. Determine the measuring range (B):
For the adjustment, make a mark at the 0% and 100% positions (e.g. insulating tape).
Minimum: At least 10 cm above the exhaust to avoid suction by air.
Maximum: The maximum level is generally the height of the tank emergency overflow.
4The sensor cables are pulled through the sealing plugs of the sensor housing and the cable ends are
stripped approx. 0.5 cm to crimp the enclosed wire end sleeves. Connect the sensor cable and the
control cable to the five-pin clamp. When doing so, observe the correct polarity. Carefully tighten the
cap nuts of the cable gland with an appropriate pair of pincers until the seal insert protrudes slightly
from the cap nut.

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6. Calibration
The sensor calibration is performed initially with the aid of a water bucket. The fine calibration can be
performed later, when the sensor system is hanging in the rainwater tank and the minimum and
maximum water levels actually exist.
Important: Calibrate the 0% point first, before calibrating the 100% rainwater-level indicator.
Submerge the sensor cable in water up to the 0% mark, at which point the cable should be stretched to
its full length. Then press the lower, submerged 0% calibration button (using a pen, etc.). The value has
been read when the display flashes briefly. The 100% calibration is performed similarly: Submerge the
sensor cable up to the 100% mark and then press the upper 100% calibration button.

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7. Modes of operation
Rainwater-level indicator
As the level of rainwater increases, all light emitting diodes light up till the current
level.
Note:
If the max. water level exceeds by approx. 10 %, then this is indicated by a flashing
100 % LED. (Rectify by pressing 100% calibration button)
8.Trouble shooting in case of problems
Description of error Cause Solution
0-100% LEDs all
flashing
simultaneously
a.) incomplete or reverse
polarized connection to
the sensor
b.) Sensor electronic circuit
is faulty
a.) Check connection and polarity at the sides of
controller and sensor
b.) Change sensor electronic circuits
0-10% and 90-100%
LEDs both flashing
simultaneously
This indicator is active if
the calibration is faulty,
i.e. the lower calibration
value is higher than the
above calibration value.
Calibrate a new value and / or recalibrate the
second value
When water touches
the sensor cable, the
display jumps up to
100%
a.) Incorrect polarity of the
sensor cable
b.)Damaged sensor cable
a.) Correct the sensor polarity
b.) .) Replace the sensor cable
No LED display The power supply is
interrupted
Check the switching power supply of the
RAINMASTER ECO