ensto ECOA904 Instructions D'opération page 5

1 Air temperature sensor ECOA904
2 Sensor ECOA904 clamp
3 Rainwater gutter
4 Sensor ECOA903 clamp
5 Snow and ice sensor ECOA903
6 Heating cables
7 Direction of water flow
CONNECTION OF SENSOR
Components for frost protection of rainwater systems
• ECO900 frost protection control unit
• ECOA903 snow and ice sensor with a heating resistor (5 leads)
• ECOA904 temperature sensor for temperature measurement (2 leads)
Lead colors in connection diagrams
Version 1 (figure 3): WH / va = white, GY / ha = grey, GN / vi = green, YE / ke = yellow,
BN / ru = brown, BU / si = blue
Version 2 (figure 4): white, grey, green, yellow, brown, blue
The ECO900 frost protection control unit is supplied with an 82 kΩ resistor but the air temperature sensor
ECOA904 can be connected instead. In this case the air temperature is also shown on basic display mode
in addition to the ground/gutter temperature and humidity. If the air temperature drops rapidly, predicting
the probable start of rain, the heating will switch on for one hour below temperatures of +7 °C.
TECHNICAL DATA
The temperature sensor is composed of a cable with an insulated NTC resistor (figure
Connection lead
Ambient temperature
NTC resistor, brown and blue wires
°C
-15 -10
kΩ 11,4
ECOA904 TEMPERATUURIANDUR
EST
ÜLDINE
ECOA904 on õhutemperatuuri mõõtev andur, mis ühendatakse ECO900 jäätumiskaitse termostaadi
külge.
Vihmaveesüsteemide kaitsmiseks külmumise eest kasutatakse andurit vihmavee rennide temperatuuri
mõõtmiseks.
Andurit võib kasutada ka lisatarvikuna nii välialade kui ka vihmavee rennide jäätumiskaitse süsteemides.
ECO900 jäätumiskaitse termostaadil on mudelid 1 ja 2.
MUDEL 1
ECO900
Frost Protection Control
Sulanapitosäädin
MENU
VALIKKO ARVO
2 x 0,5 mm; 4 m PVC
-30...+80 °C (-22...+176 °F)
-5 0
8,9 7 5,6
VALUE ENTER
VALITSE
RAK44 / © Ensto 2017
+5 +10 +15
4,5 3,6 2,9
MUDEL 2
ECO900
Frost Protection Control
1).
+20 +25 +30
2,4 2 1,6
MENU
VALUE
ENTER
5