Alfa Laval Micro Instructions D'installation, D'entretien Et D'utilisation page 6

Alfa Laval Micro
Installation, service and operating instruction
8 Running the room thermostat CM737 and CM721 ............................................................ 30
8.1 Choosing the operating mode ................................................................................................................ 30
8.2 During normal operation ......................................................................................................................... 30
Programming the room thermostat – efficient daily use ......................................................................... 30
8.3
8.3.1 The Built-in Heating Program ............................................................................................................ 30
8.4 Reviewing the Heating Program............................................................................................................. 31
8.5 Modifying the heating program in the CM737 ........................................................................................ 31
8.6 Modifying the heating program in the room thermostat CM721 ............................................................. 32
8.7 Disabling/enabling time periods ............................................................................................................. 32
8.8 Adjusting the Time .................................................................................................................................. 32
9 Special functions for the CM737 ........................................................................................ 33
9.1 OTC heating curve ................................................................................................................................. 33
9.2 Parallel adjustment of heating curve ...................................................................................................... 33
9.3 Holiday function ...................................................................................................................................... 33
10 Basic operation of the system CM721 ............................................................................... 34
10.1 Setting one temperature for the whole day ............................................................................................ 34
10.2 Automatic operation ............................................................................................................................... 34
10.3 Temporary manual override ................................................................................................................... 34
10.4 Communications loss ............................................................................................................................. 34
11 Special functions for CM721 .............................................................................................. 35
11.1 Service indicator ..................................................................................................................................... 35
11.2 BDR91 relay box fail safe mode setup ................................................................................................... 35
11.3 Automatic Summer/Winter Time Change ............................................................................................... 35
11.4 Optimum Start ........................................................................................................................................ 35
12 Activation of installer parameters...................................................................................... 36
12.1 Entering the installer set-up mode ......................................................................................................... 36
12.2 CM737-Installer parameters table .......................................................................................................... 37
12.2.1 CM737-Category 1: Room Thermostat Settings ............................................................................... 37
12.2.2 CM737-Category 2: System Settings ................................................................................................ 38
12.2.3 CM737-Category 3: Boiler Settings ................................................................................................... 38
12.2.4 CM737-Category 4: Transparent Boiler Parameter .......................................................................... 39
12.2.5 CM737-Category 5: Fault History ...................................................................................................... 39
12.3 CM721– Installer parameters table ........................................................................................................ 40
12.3.1 CM721- Category 1: Room Thermostat Settings .............................................................................. 40
12.3.2 CM721- Category 2: System Settings ............................................................................................... 41
12.3.3 Using the room thermostat for specific applications ......................................................................... 41
13 Troubleshooting the CM737 ............................................................................................... 42
13.1 Fault Codes on the CM737 .................................................................................................................... 43
14 Troubleshooting the CM721 ............................................................................................... 44
14.1 Diagnostic mode, CM721 ....................................................................................................................... 45
15 Differential pressure control valve, DPC ........................................................................... 46
15.1 Setting the DPC valve ............................................................................................................................ 46
15.2 Flow rate graph of the DPC .................................................................................................................... 46
16 Pump settings and pump performance ............................................................................. 47
16.1 Grundfos Alpha2L settings ..................................................................................................................... 47
16.2 Pump curve ............................................................................................................................................ 48
17 Electrical circuit diagram ................................................................................................... 49
17.1 Micro RTC .............................................................................................................................................. 49
17.2 Micro STC and Micro STC2 ................................................................................................................... 50
18 Schematic diagram, main components ............................................................................. 51
18.1 AquaMicro .............................................................................................................................................. 51
18.2 Micro DPC .............................................................................................................................................. 51
18.3 Micro RTC .............................................................................................................................................. 52
18.4 Micro STC ............................................................................................................................................... 52
18.5 Micro STC2 ............................................................................................................................................. 53
18.6 Micro HTC .............................................................................................................................................. 53
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