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Function
224
Maximum limitation of the flue gas temperature
--.-
Function deactivated
225
Switch-on temperature flue gas sensor function
(ZuFu10)
226
Switch-off temperature flue gas sensor function
(ZuFu10)
Oil- / gas-fired boiler
Setpoints / actual values
250
Display of the boiler temperature setpoint (TKw)
(internal or external PPS-BMU)
---
No values available
251
Actual value of the boiler temperature (TKx)
B2 or external PPS-BMU
---
No values available
252
Setpoint minimum limitation of the return temperature
253
Actual value of the return temperatur B7
---
No value present
Burner hours run counter / start counter
256
Burner operating hours stage 1 or PPS-BMU
Output K4 or PPS
To make a reset to 0, press the - / + buttons simultaneously for 3 s
257
Burner operating hours stage 2
Output K5
To make a reset to 0, press the - / + buttons simultaneously for 3 s
258
Number of burner starts stage 1
Output K4
To make a reset to 0, press the - / + buttons simultaneously for 3 s
259
Number of burner starts stage 2
Output K5
To make a reset to 0, press the - / + buttons simultaneously for 3 s
Functions
270
Minimum limitation of the boiler temperature (TKmin)
271
Frost protection for the plant with the boiler pump
0
General frost protection for the plant does not act on this pump
1
General frost protection for the plant acts on this pump
Diagnosis
295
Display of BMU error code
296
Function test oil- / gas-fired boiler
---
No test
0
Everything OFF
1
Boiler pump ON (Q1)
2
In addition, burner stage 1 ON (Q1+K4)
3
In addition, burner stage 2 ON (Q1+K4+K5)
4
Maintained boiler return temperaturre fixed ON
(Q1+K4+K5+Q12/Y7)
5
Maintained boiler return temperature fixed OFF
(Q1+K4+K5+Q12+Y8)
Solar collectors
Setpoints / actual values
300
Actual value of collector temperature B6
---
No value available
301
Actual value of collector temperature B61
---
No value available
302
Actual value of collector flow temperature B62
---
No value available
303
Maximum value of collector temperature 1 (B6)
To make a reset to the actual value, press the + / - buttons simulta-
neously for 3 s
304
Maximum value of collector temperature 2 (B61)
To make a reset to the actual value, press the + / - buttons simulta-
neously for 3 s
Siemens Building Technologies / HVAC Products
Range
Unit
--.- / 0...350
°C
0...350
°C
0...350
°C
0...140
°C
–50...350
°C
Line 280
°C
EXP
...95
–50...350
°C
0...999'999
h
0...999'999
h
0...999'999
–
0...999'999
–
250
...
°C
EXP
251
EXP
(max. 95°C)
0 / 1
–
0...255
–
--- / 0...5
–
–50...350
°C
–50...350
°C
–50...350
°C
–50...350
°C
–50...350
°C
74 319 0312 0 a
Resolution
Factory
setting
...... °C
--.-
...... °C
60
...... °C
40
–
–
–
–
......
8
–
–
–
0
–
0
–
0
–
0
......°C
40
......
1
–
–
–
- - -
–
–
–
–
–
–
–
0
–
0
19.08.2002
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