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Function
Collector pump protection
310
Evaporation temperature of heat conducting medium
---
Function deactivated
311
Switching differential to evaporation temperature of
heat conducting medium
Wood-fired boiler EXP
351
Protective boiler startup
0
No
1
Yes
Minimum limitation of the return temperature
380
Minimum limitation of the boiler return temperature
381
P-band of minimum limitation of the return temperature
382
Integral action time of minimum limitation of the return
temperature
383
Running time of actuator for minimum limitation of the
return temperature
Heat pump EXP
400
Maximum switch-off temperature
401
Minimum switch-on temperature
---
Function deactivated
410
Prerun time heat pump pump and water / brine pump
411
Overrun time heat pump pump and water / brine pump
413
Minimum compressor running time
414
Minimum compressor off time
415
Automatic switch-on attempt after heat pump errors 135
and 137
0
No
1
Yes
416
Compensation of surplus heat / heat deficit due to run-
ning time
0
Inactive
1
Active
Second heat pump stage
420
Locking time heat pump stage 2
421
Release limit heat pump stage 2
422
Reset limit heat pump stage 2
423
Changeover of stage sequence
---
Function deactivated
10...990
Automatic changeover based on hours
Water / brine temperature
425
Minimum water / brine temperature
---
Function deactivated
426
Switchung differential for min. water / brine temperature
Buffer storage tank EXP
450
Buffer storage tank safety temperature
D.h.w. storage tank EXP
500
D.h.w. storage tank safety temperature
Heating circuit EXP
700
Boost of flow temperature setpoint mixing valve (UEM)
701
Gain factor of room influence (KORR)
702
Constant for quick setback (KON)
(without room sensor)
703
Boost of the room temperature setpoint
(with boost heating)
705
Control mode of mixing valve
0
2-position
1
3-position
26/28
19.08.2002
74 319 0312 0 a
Range
Unit
--- /
°C
80...350
1...50
K
0 / 1
–
8...140
°C
1...100
K
10...873
s
30...873
s
20...140
°C
--- / 8...95
°C
5...240
s
5...240
s
0...60
min
0...60
min
0 / 1
–
0 / 1
–
1...60
min.
0...500
K*min
0...500
K*min
--- /
h
10...990
--- / –
°C
20...20
1...10
K
20...95
°C
20...95
°C
0...50
K
0...20
–
0...20
–
0...20
K
0 / 1
–
Siemens Building Technologies / HVAC Products
Resolution
Factory
setting
...... °C
---
...... K
15
......
0
...... °C
60
...... K
24
...... s
90
...... s
120
...... °C
55
...... °C
- - -
...... s
15
...... s
15
...... min
15
...... min
15
......
1
......
1
...... min
10
......
50
K*min
......
10
K*min
...... h
- - -
...... °C
3
...... K
3
...... °C
90
...... °C
90
...... K
10
......
4
......
2
...... K
5
......
1
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