Appendix
38
Installation and maintenance instructions ecoTEC plus 0020214491_01
X13
X11
Fan
230 V~
N
L
N
L
gr
e
y
N
L
blue
gr
een
X18
5
4
3
N
L
9
8
7
+
2
FB
AF
RF
DCF
0
0
1
-
tu
rquois
e
viole
t
whit
e
re
d
blue
S
upply v
o
lt
age
Extr
a-lo
w v
olt
age
E
d
ge c
onnect
or
X1
X41
X22
6
1
X6
pink
N
L
Option: Ext. controller/room thermostat 3-4
(Contact)
Option: Ext. controller/room thermostat 7-8-9
(continuous, analogue)
Option: Bus connection (controller/digital room therm.)
Option: Contact thermostat
Mains input
Internal pump
Plug for controller accessory
VRC 4xx or ZP control system
Circulation pump remote control
External sensor
Low loss header sensor
DCF connection
Earth
Earth
PWM signal: Internal pump
2
4
V
2
3
0
V~
Fan
Auxiliary relay (can be adjusted under D.26)
Cylinder
charging pump