Table of Contents
Description
1 Introduction .......................................................................................................................................................... 8
1-1 Pre-Installation ............................................................................................................................................. 9
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
2-7 Gas Supply .................................................................................................................................................. 20
2-8 Pump Installation ........................................................................................................................................ 22
2-9 Electrical Connections ................................................................................................................................ 23
2-10.2 Central Heating Mode ....................................................................................................................... 25
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
2-13.3 Lead Lag Bus Wiring......................................................................................................................... 29
2-13.4 Enable Lead Lag Master .................................................................................................................... 29
2-13.7 Enable Lead Lag Slave ...................................................................................................................... 29
2-14 Suggested Piping ...................................................................................................................................... 30
3-1 Introduction ................................................................................................................................................ 37
3-2 Basic Panel Description .............................................................................................................................. 37
3-3 Operation .................................................................................................................................................... 37
3-4 User Mode .................................................................................................................................................. 38
3-5 Setup Mode ................................................................................................................................................. 39
2
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Rev 2.1