Contents
1.0 Overview of the controller 5
1.1 Controller's menu screens 6
1.2 Who is the manual for? 7
1.3 Power-up sequence and operational states/cycles 7
1.4 Getting to know the controller’s interface 8
2.0 Operating concepts 17
2.1 Domestic hot water (DHW) 17
2.1.1 DHW opt out in a multiple boiler network 17
2.2.1 Standard reset heating (default) 19
2.2.2 Advanced reset heating 21
2.6 Setting load priority 24
2.7.1 Basic mode load combining (default) - recommended 26
2.7.2 Full mode load combining 27
2.8 Setting the supply differential in heating modes 29
2.9 Operational settings in the Setup menu: temperature ranges and defaults 30
2.10 Operational settings in the Advanced Setup menu: temperature ranges and defaults 32
3.3 Load pumps or valves 41
3.7 Multiple boilers: wiring and networking 43
3.7.1 Methods for networking a group of boilers 43