Table of Contents
PART 1 GENERAL INFORMATION ........................................................................................................................... 1
1.0
OVERVIEW ................................................................................................................................................... 1
1.1
INTRODUCTION ........................................................................................................................................... 1
1.2
1.3
CHECKING EQUIPMENT ............................................................................................................................. 2
1.4
1.5
1.5.1
IGNITION PROCESS .................................................................................................................................... 3
1.5.2
HEAT TRANSFER PROCESS ...................................................................................................................... 3
1.5.3
END OF SEQUENCE .................................................................................................................................... 3
1.6
CODES .......................................................................................................................................................... 4
1.7
WARRANTY .................................................................................................................................................. 4
1.8
1.9
1.10
1.11
PART 2 VENTING ....................................................................................................................................................... 8
2.1
GENERAL VENTING GUIDE ........................................................................................................................ 8
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
APPROVED VENTING MATERIALS ............................................................................................................ 9
2.1.6
VENT TERMINATION CLEARANCES ......................................................................................................... 9
2.1.7
2.1.8
2.1.9
AIR INLET DAMPER ................................................................................................................................... 10
2.1.10
2.1.11
2.1.12
2.1.13
DRAIN TEE ................................................................................................................................................. 11
2.2
2.2.1
2.2.2
EXHAUST FANS ......................................................................................................................................... 12
2.3
OUTDOOR VENTING ................................................................................................................................. 12
2.4
THRUWALL VENTING ................................................................................................................................ 12
2.4.1
2.4.2
2.4.3
2.4.4
LENGTH OF AIR INLET PIPE .................................................................................................................... 13
PART 3 GAS CONNECTION .................................................................................................................................... 13
3.1
GAS CONNECTION ................................................................................................................................... 13
3.2
GAS PIPING ................................................................................................................................................ 14
3.3
INSTALL PIPING ........................................................................................................................................ 14
3.4
DIFFERENTIAL AIR PRESSURE ............................................................................................................... 14
3.5
3.6
3.7
3.8
GAS TRAIN AND CONTROLS ................................................................................................................... 16
3.9
RATIO GAS VALVE .................................................................................................................................... 16
3.10
3.11
BURNER ..................................................................................................................................................... 16
PART 4 WATER CONNECTION .............................................................................................................................. 17
4.1
FREEZE PROTECTION .............................................................................................................................. 17
4.2
4.3
4.4