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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Contents
18.10.2002
4.138
Flow / return temperature differential at –10 °C.....................................181
4.139
Compensation of mixing valve boost .....................................................182
4.140
Frost protection for the plant acting on the heat pump circulator ..........182
4.141
Additional pump kick for water / brine pump..........................................183
4.142
Control of the heat pump circulators......................................................183
Diagnosis...............................................................................................................184
4.143
Functional test of the heat pump............................................................184
Buffer storage tank ................................................................................................185
Setpoints / actual values .......................................................................................185
4.144
Actual values of buffer storage tank temperature sensors B4, B41, B42
and B43 185
4.145
Maximum value of buffer storage tank sensor B4 .................................186
4.146
Display of actual value of return temperature B73.................................186
4.147
Display of setpoint of the buffer storage tank temperature....................186
Functions ...............................................................................................................187
4.148
Buffer storage tank charging with the wood-fired boiler.........................187
4.149
Minimum buffer storage tank temperature level when charging with the
collectors (TPmin)..................................................................................................188
4.150
Maximum buffer storage tank charging temperature .............................189
4.151
Automatic heat generation lock..............................................................189
4.152
Δ
T Differential between buffer storage tank temperature and heat
demand from the heating circuit ............................................................................190
4.153
Forced buffer storage tank charging with heat pump ............................190
Return diversion ....................................................................................................192
4.154
Return diversion temperature differential ON (ZuFu1) ..........................192
4.155
Return diversion temperature differential OFF (ZuFu1).........................192
4.156
Operating action of the return diversion (ZuFu1)...................................193
4.157
Storage tank sensor for the return diversion (ZuFu1)............................193
Electric immersion heater......................................................................................194
4.158
Release outside temperature for electric immersion heater in the buffer
storage tank...........................................................................................................194
4.159
Selection of control sensor for electric immersion heater in the buffer
storage tank...........................................................................................................194
Buffer storage tank overtemperature.....................................................................195
4.160
Functioning.............................................................................................195
4.161
Difference between the maximum storage tank temperature (MSP) and
the buffer storage tank safety temperature ...........................................................196
4.162
Hysteresis for buffer storage tank cooling function with priority 1 .........196
4.163
Priority of buffer storage tank cooling with the transfer pump ...............197
4.164
Priority of buffer storage tank cooling with the collector pump ..............197
4.165
Priority of buffer storage tank cooling with the heat source pump.........198
4.166
Priority of buffer storage tank cooling with overtemperature protection
output K11 .............................................................................................................198
