ensto ECOA903 Notice D'installation page 15

3
ECO900
Frost Protection Control
MENU
VALUE
ENTER
10
white grey green yellow brown
ECOA903
X2
10 11 12 13 14 15
11 12 13 14 15
ECOA901/ECOA903
-20 T 50
ECO900
L1
230 V AC
N
PE
RAK43 / 8.6.2021
ECOA904
20
82 kΩ
16 17 18 19 20 21
16 17 18 19
white grey yellow brown
ECOA902
ECOA904 blue brown
230 V ALARM
~
230 V / 2 A
NC
1 2 3 4 5 6 7 8 9
X1
1 2 3 4 5 6
82 kΩ
82 kΩ / ECOA904
21
X3
20 21
brown blue
ECOA904
or 82 kΩ
HEATER
230 V / 16 A
NC
7 8 9
15 / 16