Siemens Albatros2 AVS37 User Manual Page 118
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Siemens Switzerland Basic units RVS61.843 and RVS41.813 CE1U2355en_02
HVAC Products Contents 3. Juli 2008
SD
Tx
Tw
0
S1
1
0
S2
1
2864
T
t
TW Flow or return temperature setpoint
Tx Actual value of flow or return
temperature
SD Switching differential
S1 Heat pump stage 1
S2 Heat pump stage 2
2864 Reset integral stage 2
t Temperature
t Time
If both stages together deliver too much heat, the second stage is immediately switched
off when the switch-off point or, latest, the reduced maximum switch-off temperature is
reached (2844 and 2845).
Automatic changeover of the compressors ensures that both compressors operate
pretty much the same number of hours.
If the difference of operating hours between the first and the second compressor
exceeds the limit (h) set here, the order of startup changes as soon as both
compressors are switched off. This means that compressor 1 becomes compressor 2,
and vice versa. The current compressor sequence appears on operating line 8446.
Electric immersion heater in the flow
Relays K25 and K26 are intended for using an electric immersion heater in the flow.
They are controlled by 2 appropriately configured multifunctional relay outputs QX1 –
QX6.
If both relays are present, the electric immersion heater is controlled in 3 stages (1st
stage K25, 2nd stage K26, and 3rd stage K25 and K26).
If a flow temperature sensor (B21) is connected, it is used for control to the flow
temperature setpoint. The switching differential is 1 °C.
If the flow temperature sensor is missing, but a common flow temperature sensor (B10)
is available, that sensor is used for conrol.
If no flow temperature sensor is present, the electric immersion heater is controlled
based on the return temperature (B71) and the return temperature setpoint. The
switching differential is set with parameter “Switching diff return temp” (2840).
Line no. Operating line
2880 Use electric flow
2881 Locking time electric flow
2882 Release integr electric flow
2883 Reset integr electric flow
2884 Release el flow below OT
Control of the electric immersion heater is dependent on the selected kind of use.
Substitute
The electric immersion heater is only used in emergency operation (7141 and 7142).
When activating emergency operation (manually or automatically), the electric
immersion heater is immediately released to ensure control to the current setpoint. No
consideration is given to “Locking time electric flow” (2881) and to “Release electric
flow below OT” (2884).
If there is no control sensor (B21, B10, B71), the electric immersion heater is switched
on in emergency operation when there is a valid temperature request. In the case of a
Compr sequence
changeover
Use electric flow
- Siemens Switzerland Ltd 1
- HVAC Products 1
- Contents 3
- 1 Summary 9
- Wireless 10
- (optionally with additional 11
- 2 Safety notes 12
- 3 Mounting and installation 13
- Dimensions in mm 14
- 15/235 15
- 17/235 17
- B84/B9 2 18
- 19/235 19
- X50 of the basic unit 20
- AVS82.491/109 21
- 3.4 Operator unit AVS37.294 22
- 235 4M01 23
- 3.6 Room unit QAA55… 24
- 3.7 Room unit QAA75… 25
- Dimensions and drilling plan 26
- 3.8 RF components 27
- Operator section 29
- Testmode 29
- Removing the 31
- Batterie 31
- 3.8.4 RF repeater AVS14.390 33
- 4 Commissioning 35
- 5 Handling 36
- Xxxxxxxxxxxxxxxxxxxxxxxxxxx 37
- Raumtemperatur 39
- Text3 Text4 40
- 30:Flow sensor 1 40
- 41/235 41
- Room temperature 42
- 5.1.3 User levels 43
- Commissioning 44
- − − − / 8 30 °C 47
- − − − / -10 10 °C 47
- − − − / 1 100 % 47
- − − − / 0.5 4 °C 47
- − − − − − − / 0 20 °C 47
- − − − / 10 360 min 51
- − − − / -20 30 °C 52
- − − − / -30 50 °C 52
- − − − / -30 30 52
- − − − / 10 1000 52
- − − − / 10 600 min 54
- − − − − − − / 1 55
- − − − − − − / 0 100 % 68
- 5.2 QAA55 74
- 5.2.2 Programming 75
- 6 The settings in detail 77
- 40 Used as 78
- 79/235 79
- Heating circuits 1 and P 79
- All heating circuits 79
- 6.3 Radio links 80
- 6.4 Time programs 81
- 6.5 Holidays 81
- 6.6 Heating circuits 82
- Heating curve 83
- Heating curve slope 83
- HC1 HC2 HC3P 84
- 85/235 85
- Room temperature limitation 87
- Boost heating 87
- Quick setback 88
- Optimum start / stop control 88
- Raising the Reduced setpoint 89
- 830 1130 Mixing valve boost 90
- 832 1132 Actuator type 90
- 91/235 91
- 861 1161 1461 93
- 6.7 Cooling circuit 1 94
- 901 Operating mode 95
- 902 Comfort setpoint 95
- 907 Release 96
- 908 Flow setp at OT 25°C 96
- 909 Flow setp at OT 35°C 96
- 912 Cooling limit at OT 97
- 918 Summer comp start at OT 97
- 919 Summer comp end at OT 97
- 928 Room influence 98
- TRKw-SDR 99
- Mixing valve control 100
- Dewpoint supervision 100
- (dT TVKw) 101
- 6.8 Domestic hot water 102
- 1620 Release 103
- 1630 Charging priority 104
- Legionella function 105
- • Periodically 105
- • Fixed weekday 105
- 6.9 Hx pumps 106
- 107/235 107
- 6.10 Swimming pool 108
- 6.12 Heat pump 109
- 2801 Control cond pump 110
- 2802 Prerun time cond pump 110
- 2803 Overrun time cond pump 110
- Temperature request 111
- Source pump 111
- Line no. Operating line 112
- Compressor settings 114
- Compressor 2 116
- 2862 2862 117
- 2880 Use electric flow 118
- 119/235 119
- 2882 2882 120
- General parameters 121
- 2355_169aZ01 122
- Released 123
- 124/235 124
- 125/235 125
- Frost protection for 126
- 127/235 127
- 128/235 128
- 6.13 Cascade 130
- Heat source sequence 131
- Auto source seq exclusion 132
- Operating mode 133
- Overtemperature protection 133
- Control 133
- 6.15 Solar 135
- Priority 136
- DHW storage tank 136
- Buffer sensor 136
- Start function 137
- Collector frost protection 137
- Speed control 138
- Yield measurement 138
- 6.16 Buffer sensor 139
- 4720 Auto generation lock 140
- 4722 Temp diff buffer/HC 140
- Schichtschutz 141
- Always: 141
- 6.17 DHW storage tank 143
- 5055 Recooling temp 144
- 5056 Recooling heat gen/HCs 144
- 5057 Recooling collector 144
- 0 6121824 145
- DHW release 146
- External thermostat 146
- DHW sensor 146
- Excess heat draw 146
- Plant hydraulics 146
- 5101 Pump speed min 147
- 5102 Pump speed max 147
- Transfer strategy 148
- RVS61.843) 149
- 6.19 Configuration 150
- 5710 Heating circuit 1 151
- 5711 Cooling circuit 1 151
- 5712 Use of mixing valve 1 151
- Off ¦ On 152
- 5800 Heat source 153
- 5807 Refrigeration 153
- Output relay QX 155
- Line no 156
- Operating line 156
- 157/235 157
- 158/235 158
- 159/235 159
- Only RVS61 161
- Only RVS41 161
- 162/235 162
- Pressure measurement 10V 163
- Rel room humidity 10V 163
- Room temp 10V 163
- Release swimming pool 163
- 164/235 164
- 1/U1 and F2/U2) 165
- 167/235 167
- 170/235 170
- BX extension module 171
- H2 extension module 172
- 10V output UX 172
- Pt 1000 173
- 24h / day 174
- Time program HC 174
- Time program 5 174
- 176/235 176
- 177/235 177
- 6.20 LPB 178
- 6.21 Errors 181
- 229: Niederdruck 182
- Maintenance functions 185
- 186/235 186
- 187/235 187
- Manually 188
- Automatically 188
- 6.23 Input / output test 189
- Input test sensors 190
- Input test E 191
- enabling 191
- Input test H1, H2, H3 191
- 6.24 State 192
- State cooling circuit 193
- State heat pump 193
- State solar 194
- State buffer 194
- 6.25 Diagnostics cascade 196
- Time / start counter 198
- Heat pump air 198
- 6.27 Diagnostics consumers 200
- Heating circuits 1, 2, P 201
- Cooling circuit 1 201
- Domestic hot water 202
- Swimming pool 202
- Primary controller 202
- Common flow 202
- Input H1 203
- Water pressure 203
- 6.28 Pump kick 204
- 7 Plant diagrams 205
- Plant diagram 2: 206
- Plant diagram 3: 206
- Plant diagram 4: 207
- Plant diagram 5: 207
- Plant diagram 6: 208
- Plant diagram 7: 208
- Plant diagram 8: 209
- Plant diagram 9: 210
- Plant diagram 10: 210
- Plant diagram 11: 211
- Plant diagram 12: 211
- Plant diagram 13: 212
- Plant diagram 14: 212
- Plant diagram 15: 213
- Plant diagram 16: 214
- Plant diagram 17: 214
- Plant diagram 18: 215
- Plant diagram 19: 216
- Plant diagram 20: 216
- Plant diagram 21: 217
- Plant diagram 22: 218
- Plant diagram 23: 218
- Plant diagram 24: 219
- 220/235 220
- 8 Technical data 221
- Class 1K3, temp. -20…65 °C 222
- 0.5 0.75 1.0 1.5 mm 223
- 40 60 80 120 m 223
- Without packaging 224
- 8.7 Sensor characteristics 227
- 228/235 228
- 229/235 229
- 230/235 230
- 231/235 231
- 232/235 232
- 233/235 233
- 234/235 234
- 235/235 235
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