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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Handling
18.10.2002
Line Function
Range
Unit
Resolution Factory
setting
Buffer storage tank
Setpoints / actual values
450 Actual value B4 of the buffer storage tank temperature
at the top.
--- No
value
available
-50...350 °C 1 –
451 Actual value B41 of the buffer storage tank temperature
at the bottom.
--- No
value
available
-50...350 °C 1 –
452 Actual value B42 of the buffer storage tank temperature
at the center.
--- No
value
available
-50...350 °C 1 –
453 Actual value B43 of the buffer storage tank temperature
for partial charging.
--- No
value
available
-50...350 °C 1 –
454 Maximum value of the buffer storage tank temperature B4
To reset to the actual value, press the + / - buttons simultaneously for
3 seconds
-50...350 °C 1 0
455 Display of the actual value of return temperature B73
--- No
value
available
-50...350 °C 1 –
456 Display of the setpoint of the buffer storage tank tem-
perature
To set the setpoint of the buffer storage tank temperature (slave
pointer) to the current temperature demand, press the + / - buttons si-
multaneously for 3 seconds.
0...140 °C 1 0
Functions
470 Recharge control buffer storage tank with the wood-fired
boiler
0
With sensor B4 (switching differential)
1
With sensors B4 + B41/B42 (start / stop)
0 / 1
–
1
0
471 Minimum buffer storage tank temperature level when
charging with the collectors (TPmin)
0…line 472
°C
1
0
472 Maximum buffer storage tank charging temperature
Line 471
Line 450
EXP
°C 1 80
473 Automatic heat generation lock
--- OFF
0 With
B4
1
With B4 and B41 / B42
--- / 0...1
–
1
0
474
Δ
Temperature differential of buffer storage tank tem-
perature and heat demand from the heating circuit (for
aut. heat generation lock)
-20...20 K 1 -2
475 Forced charging of buffer storage tank with heat pump
0 None
2 B4
3
Slave pointer / B41 or B42
3
Maximum buffer storage tank charging temperature / B4
4
Maximum buffer storage tank charging temperature / B41 or B42
0...4 –
1
0
Return diversion (ZuFu1)
480 Return diversion temperature differential ON
Line 481…40
K
1
10
481 Return diversion temperature differential OFF
0…line 480
K
1
5
482 Operating action of return diversion
1
As return temperature setback
2
As return temperature lift
1...2 – 1
1
483 Storage tank sensor for the return diversion
1 Sensor
B4
2 Sensor
B41
3 Sensor
B42
1...3 – 1
2
Electrical immersion heater
484 Release of outside temperature for electric immersion
heater buffer storage tank
---
Function deactivated
--- / –30...30
°C
1
–5
