Viessmann Vitoflex 300-UF 530 Installation And Operating Instructions Manual page 39

Vitoflex 300-UF Installation & Operating
Electrical Components
M High voltage
Y Low voltage
High Voltage
Number Designation
1 M1
2 M11
3 M13
4 M14
5 M15
6 M16
7 M20
Low Voltage
8 Y20
9 Y71
10 Y72
11 Y73
12 Y74
13 Y75
14 Y76
15 Y77
16 Y78
17 Y79
18 Y80
19 Y81
20 Y82
Temperature sensors
21 B1
22 B20
23 B20.1
24 B27
Light barriers
25 B1G/1
26 B1G/2
27 B2/1
28 B2/2
29 B14/1
30 B14/2
Sensors
31 B26
32 U26
33 N25
34 N21
35 U1
36 N23
37 S1
38 B70
39 N70
(continued)
B sensors
S Switches
Device tag Description
-3M1 Flue gas exhaust blower (not shown)
-9M11 Grate drive
-13M13 Secondary air blower (not shown)
-14M14 De-ashing auger
-15M15 De-ashing ascending conveyor auger (not shown)
-16M16 Igniter (not shown)
-17M20 Boiler pump (not shown)
-18Y20 Mixing valve actuator (not shown)
-20Y71 Solenoid valve 1
-20Y72 Solenoid valve 2
-20Y73 Solenoid valve 3
-20Y74 Solenoid valve 4
-20Y75 Solenoid valve 5
-20Y76 Solenoid valve 6
-20Y77 Solenoid valve 7
-20Y78 Solenoid valve 8
-20Y79 Solenoid valve 9
-20Y80 Solenoid valve 10
-20Y81 Solenoid valve 11
-20Y82 Solenoid valve 12
-107B1 Flue gas temperature sensor (not shown)
-107B20 Boiler supply temperature sensor
-107B20.1 Boiler return temperature sensor
-73B27 Combustion chamber temperature sensor (not shown)
-61B1G/1 Light barrier embers (Transmitter) (not shown)
-61B1G/2 Light barrier embers (Receiver) (not shown)
-61B2/1 Light barrier in-feed auger (Transmitter)
-61B2/2 Light barrier in-feed auger (Receiver)
-61B14/1 Light barrier de-ashing auger (Transmitter)
-61B14/2 Light barrier de-ashing auger (Receiver)
-91B26 Oxygen sensor (not shown)
-91U26 Oxygen sensor transducer (not shown)
-69N25 Floater switch for fire extinguishing water container (not shown)
-72N21 Fixed high limit (not shown)
-17U1 Low water cut-off (not shown)
-72N23 Water safety pressure switch (not shown)
-60S1 Limit switch for the combustion chamber door
-67B70 Differential pressure transmitter for the combustion chamber (not shown)
-72N70 Pressure switch for the combustion chamber RAK (not shown)
N Sensors
Electrical
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