Wagner & Co RATIOfresh 250 Technical Information Installation Instructions page 12

at rest
activated
Hot-/cold water sensors
Hot water sensor (blue)
Mass (brown)
Circulation / cold water
sensor (blue)
Primary circuit sensors
Buffer cyl. sensor (blue)
Mass (brown)
Primary flow sensor (blue)
Single jet meter
Mass (brown
Impulse (green)
not used
not used
Optional data cable
Plus 5V (yellow)
TxData (white)
RxData (green)
Mass (brown)
Figure 9 Controller connection
3 Socket flat data cable; 4/5 Mains (plug/socket); 6/7 Circulation pump (plug/socket); 8/9 Primary circuit sensor (plug/socket); 10/11 Meter (plug/
socket); 12/13 Data cable (plug/socket); 14/15 External switching output for heating circuit control (plug/socket); 16 Micro-fuse, 250V/T6,3 A;
17 Micro-fuse, 250V/T400 mA; 18/19 Secondary sensor hot/cold water (plug/socket); 20/21 Primary pump (plug/socket).
12
Low voltage area
14
15
18
19
9
8
10
11
13
12
+5V
+15V
22
3
230 V
6
Optional circulation pump
7
Grounding (yellow/green)
Zero (blue)
Phase (black or brown)
21
20
Primary pump cable
Grounding (yellow/green)
Zero (blue)
Phase (black or brown)
16
17
4
5
Mains connection
Grounding (yellow/green)
Zero (blue)
Phase (black or brown)
EN-RATIOfresh-250-400_TI-MA-0809-11214900