2.8.1 Single Servomotor with VSD............................................................................................. 61
2.8.2 Digital Fan Adapter............................................................................................................ 63
2.8.3 No Air Servomotor............................................................................................................. 64
2.9 Mk8 MM External 4-20mA Servomotor................................................................................. 65
2.9.1 Overview ........................................................................................................................... 65
2.9.2 External 4-20mA Servomotor Requirements .................................................................... 65
2.9.3 Wiring ................................................................................................................................ 66
2.9.4 Settings ............................................................................................................................. 67
2.9.5 Commissioning.................................................................................................................. 67
3HAND, LOW FLAME HOLD AND AUTO..................................................................................... 68
3.1Hand Operation ..................................................................................................................... 68
3.2 Low Flame Hold .................................................................................................................... 68
3.3 Auto Operation ...................................................................................................................... 68
4PID CONTROL.............................................................................................................................. 69
4.1 Proportional Band ................................................................................................................. 69
4.2 Integral Control...................................................................................................................... 70
4.3 Derivative Control.................................................................................................................. 71
5INTELLIGENT BOILER SEQUENCING....................................................................................... 72
5.1 Sequencing Schematics........................................................................................................ 73
5.1.1 Sequencing Connection Diagram ..................................................................................... 73
5.1.2 DTI Connection Diagram................................................................................................... 74
5.1.3 Hot Water Example ........................................................................................................... 75
5.1.4 Single/ Multi-Burner Examples.......................................................................................... 76
5.1.5 IBS Communications......................................................................................................... 77
5.2 Sequencing Options and Parameters ................................................................................... 78
5.3 Hot Water Sequencing .......................................................................................................... 79
5.3.1 Implementing Hot Water Sequencing ............................................................................... 79
5.3.2 Two Port Valve Operation ................................................................................................. 80
5.4 Steam Sequencing................................................................................................................ 81
5.4.1 Warming Steam Boilers .................................................................................................... 81
5.4.2 Implementing Steam Sequencing ..................................................................................... 81
5.4.3 Low Pressure Steam Sequencing..................................................................................... 82
5.5 Troubleshooting – Sequencing ............................................................................................. 83
6MULTI-BURNER OPERATION – MK8 MM .................................................................................84
6.1 Multi-Burner Overview........................................................................................................... 84
6.2 Configuring Multi-Burner Operation ...................................................................................... 85
6.2.1 Wiring ................................................................................................................................ 85
6.2.2 Options and Parameters ................................................................................................... 86
6.2.3Commissioning in Multi-Burner Operation ........................................................................ 86
6.2.4 Fuel Flow Metering in Multi-Burner Operation .................................................................. 86
