Assortment / System Description

6 | 275 A6V10866237_en--_b_08
19.8 Start of air volume flow by heating demand .............................................. 160
19.9 Actuators......................................................................................................... 160
19.10 Valve protection ............................................................................................. 161
19.11 Determination of heating/cooling state...................................................... 161
19.12 Heating/cooling demand .............................................................................. 161
19.13 Preheating ...................................................................................................... 162
19.14 Emergency mode ........................................................................................... 162
19.15 Reset setpoint ................................................................................................ 162
19.16 Free inputs/outputs ...................................................................................... 162
19.17 Centrally override valves ............................................................................... 162
19.18 Electric reheater ............................................................................................ 163
19.19 Night cooling .................................................................................................. 163
19.20 Presence control ............................................................................................ 164
19.21 Application examples .................................................................................... 164
19.21.1 Fan powered box ........................................................................... 164
20 Heat pump application ........................................................................ 165
20.1 Serial or parallel control strategy ................................................................ 165
20.2 Air volume flow in the dead zone................................................................. 167
20.3 Control of staged fan..................................................................................... 168
20.4 Control of modulating fan ............................................................................. 169
20.5 Heat pump control ......................................................................................... 170
20.6 Speed-controlled heat pump with reversing valve control ....................... 173
20.7 1-stage heat pump with reversing valve control ....................................... 174
20.8 2-stage heat pump with reversing valve control ....................................... 175
20.9 2-stage heat pump with reversing valve control and hot gas reheater .. 176
20.10 2-stage heat pump with internal reversing valve control ......................... 177
20.11 2-stage heat pump with internal reversing valve control and hot gas
reheater ........................................................................................................... 178
20.12 Actuators......................................................................................................... 179
20.13 Valve protection ............................................................................................. 179
20.14 Determination of heating/cooling state...................................................... 179
20.15 Heating/cooling demand .............................................................................. 179
20.16 Source demand .............................................................................................. 180
20.17 Preheating ...................................................................................................... 180
20.18 Emergency mode ........................................................................................... 180
20.19 Night cooling .................................................................................................. 180
20.20 Free cooling .................................................................................................... 181
20.21 Reset setpoint ................................................................................................ 181
20.22 Free inputs/outputs ...................................................................................... 181
20.23 Centrally override valves ............................................................................... 181
20.24 Central override of heat pump source enable............................................ 181
20.25 Electric reheater ............................................................................................ 182
20.26 Room supply air cascade .............................................................................. 184
20.27 Air quality control........................................................................................... 184
20.28 Dehumidification control .............................................................................. 184
20.29 Outside air damper control ........................................................................... 185
20.30 Presence control ............................................................................................ 187
20.31 Application examples .................................................................................... 187