2
Rev 2.1
Table of Contents
Description Page #
1 Introduction .......................................................................................................................................................... 8
1-1 Pre-Installation ............................................................................................................................................. 9
1-2 Boiler Nameplate and Model Number ....................................................................................................... 10
1-3 Rating and Certifications ............................................................................................................................ 11
1-4 Connection Information .............................................................................................................................. 11
1-5 General Safety ............................................................................................................................................ 11
2 Installation.......................................................................................................................................................... 13
2-1 Installation Codes ....................................................................................................................................... 13
2-2 Equipment Base .......................................................................................................................................... 13
2-3 Determining Unit Location ......................................................................................................................... 13
2-4 Combustion and Ventilation Air ................................................................................................................ 14
2-5 Conventional Combustion Air Supply ....................................................................................................... 16
2-6 Conventional Exhaust Venting ................................................................................................................... 17
2-7 Gas Supply .................................................................................................................................................. 20
2-8 Pump Installation ........................................................................................................................................ 22
2-9 Electrical Connections ................................................................................................................................ 23
2-10 DHW/CH Installation and Programming ................................................................................................. 25
2-10.1 Domestic Hot Water Mode ................................................................................................................ 25
2-10.2 Central Heating Mode ....................................................................................................................... 25
2-10.3 4–20 mA Remote Setpoint .............................................................................................................. 26
2-11 Lead Lag Installation and Programming .................................................................................................. 26
2-11.1 Sensor Wiring .................................................................................................................................... 26
2-12 Lead Lag Operation .................................................................................................................................. 26
2-12.1 Sequencing ......................................................................................................................................... 26
2-12.2 Rate Allocation Control ..................................................................................................................... 26
2-12.3 Add Stage Method ............................................................................................................................. 27
2-12.4 Drop Stage Method ............................................................................................................................ 27
2-13 System Integrator Display Wiring and Lead Lag Bus Wiring ................................................................. 27
2-13.1 System Integrator Display Wiring ..................................................................................................... 27
2-13.2 Modbus Address Programming ......................................................................................................... 29
2-13.3 Lead Lag Bus Wiring......................................................................................................................... 29
2-13.4 Enable Lead Lag Master .................................................................................................................... 29
2-13.5 Enable Lead Lag Master Using Basic Panel...................................................................................... 29
2-13.6 Enable Lead Lag Master Using Enhanced or System Operator Interface Panel ............................... 29
2-13.7 Enable Lead Lag Slave ...................................................................................................................... 29
2-13.8 Enable Lead Lag Slave Using Basic Panel ........................................................................................ 29
2-13.9 Enable Lead Lag Slave Using Enhanced or System Operator Interface Panel ................................. 29
2-14 Suggested Piping ...................................................................................................................................... 30
2-14.1 Suggested Domestic Hot Water Piping Diagrams ............................................................................. 30
2-14.2 Suggested Central Heating Piping Diagrams .................................................................................... 35
3 Basic Panel Operating Procedures ..................................................................................................................... 37
3-1 Introduction ................................................................................................................................................ 37
3-2 Basic Panel Description .............................................................................................................................. 37
3-3 Operation .................................................................................................................................................... 37
3-4 User Mode .................................................................................................................................................. 38
3-5 Setup Mode ................................................................................................................................................. 39
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