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Line
Function
Electric immersion heater
484
Release outside temperature for electric immersion
heater buffer storage tank
---
Function deactivated
485
Selection of control sensor for electric immersion heater
of the buffer storage tank
0
Common flow sensor B10
1
Buffer storage tank sensor B4
Overtemperature protection
489
Differential of maximum storage tank temperature
(MSP) and buffer storage tank safety temperature
490
Hysteresis for buffer storage tank cooling function with
priority 1
491
Priority buffer storage tank cooling with heat transfer
pump
---
Function deactivated
1
Priority 1
2
Priority 2
492
Priority buffer storage tank cooling with collector pump
---
Function deactivated
1
Priority 1
2
Priority 2
493
Priority buffer storage tank cooling with heat source
pump
---
Function deactivated
1
Priority 1
2
Priority 2
494
Priority buffer storage tank cooling with overtempera-
ture protection output
---
Function deactivated
1
Priority 1
2
Priority 2
495
Priority buffer storage tank cooling by delivering heat for
space heating
---
Function deactivated
1
Priority 1
2
Priority 2
Storage tank temperature
Functions
520
D.h.w. heating with electric immersion heater K6
1
Frost protection for the storage tank
2
Only in summer operation
3
Always
521
Recharge control d.h.w. storage tank
0
With sensor B3 (switching differential)
1
With sensors B3 and B31 (start / stop)
2
D.h.w. heating like setting 0, legionella function like setting 1
522
Minimum d.h.w. storage tank level when charging with
collector (TBmin)
523
Maximum d.h.w. storage tank charging temperature
Heat transfer d.h.w. storage tank
530
Heat transfer with d.h.w. sensor
0
With sensor B3
1
With sensor B31
531
Automatic heat transfer from the buffer to the d.h.w.
storage tank
---
Function deactivated
1
With Q3
2
With Q11
532
Heat transfer strategy in the summer
0
Only for frost protection
1
According to d.h.w. release
2
Always
533
Heat transfer strategy in the winter
0
Only for frost protection
1
According to d.h.w. release
2
Always
18/28
19.08.2002
74 319 0312 0 a
Range
Unit
--- / –30...30
°C
0 / 1
–
1...50
K
1...20
°C
--- / 1...2
–
--- / 1...2
–
--- / 1...2
–
--- / 1...2
–
--- / 1...2
–
1...3
–
0...2
–
0...line 523
°C
Line 522...
°C
line 500
EXP
0 / 1
–
--- / 1...2
–
0...2
–
0...2
–
Siemens Building Technologies / HVAC Products
Resolution
Factory
setting
...... °C
–5
......
1
...... K
5
...... °C
5
......
- - -
......
- - -
......
- - -
......
- - -
......
- - -
......
2
......
0
...... °C
0
...... °C
80
......
0
......
1
......
2
......
2
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