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Function
Overtemperature protection d.h.w. storage tank
539
Difference between maximum storage tank temperature
(MSB) and d.h.w. storage tank safety temperature
540
Hysteresis for the d.h.w. cooling function with priority 1
541
Priority of d.h.w. storage tank cooling with the heat
transfer pump
---
Function OFF
1
Priority 1
2
Priority 2
542
Priority of d.h.w. storage tank cooling with the collector
pump
---
Function OFF
1
Priority 1
2
Priority 2
544
Priority of d.h.w. storage tank cooling with overtem-
perature protection output K11
---
Function OFF
1
Priority 1
2
Priority 2
Diagnosis
545
Functional test of the d.h.w. storage tank
---
No test
0
Everything OFF
1
Charging pump ON (Q3)
2
In addition, diverting valve ON (Q3 + Y3)
3
Transfer pump ON (Q11)
Combi storage tank
570
B4 delivers the temperature signal for the B31 functionality
0
No
1
Yes
Bivalent operation
Heat source sequence
620
Lead heat source
2
Oil- / gas-fired boiler
3
Heat pump
4
Wood-fired boiler
621
Delayed switching on of lag heat source
622
Release integral for lag heat source
623
Reset integral for lag heat source
Release depending on the outside temperature
630
Release of oil- / gas-fired boiler below the outside tem-
perature threshold
---
Boiler always released
631
Release of heat pump above the outside temperature
threshold
---
Heat pump always released
632
Released of wood-fired boiler below the outside tem-
perature threshold
---
Boiler always released
D.h.w. heating
640
Heat source strategy for d.h.w. heating:
1
D.h.w. according to the current heat source sequence
2
D.h.w. with lag heat source, lead heat source controls to space
heating setpoint during d.h.w. heating
3
D.h.w. with lag heat source, lead heat source during d.h.w.
heating OFF
4
D.h.w. with lag heat source if released, lead heat source controls
d.h.w. heating to space heating setpoint
5
D.h.w. heating with lag heat source if released, lead heat source
during d.h.w. heating OFF
44/348
Siemens Building Technologies
HVAC Products
Basic Documentation RVP540 / RVP550
Handling
Range
Unit
1...50
K
1...20
°C
--- / 1...2
–
--- / 1...2
–
--- / 1...2
–
--- / 0...3
–
0 / 1
–
1...3
–
1...255
min
0...500
K*min
0...500
K*min
--- / –30...30
°C
--- / –30...30
°C
--- / –30...30
°C
1...5
–
Resolution
Factory
setting
1
5
–
5
1
- - -
1
- - -
1
- - -
1
- - -
1
0
1
–
1
10
1
200
1
50
1
- - -
1
- - -
1
- - -
1
1
CE1P2488en
18.10.2002
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