4
LP-314 REV. 3.24.14
The latest version of the National Electrical Code, NFPA No. 70. NOTE: The gas manifold and controls met safe lighting and other performance criteria when undergoing tests specified in ANSI Z21.10.3
– latest edition.
TABLE OF CONTENTS
PART 1
– GENERAL SAFETY INFORMATION .......................................................................................................................... 6
A. PRECAUTIONS .......................................................................................................................................................................... 6
B. IMPROPER COMBUSTION ........................................................................................................................................................ 6
C. GAS ............................................................................................................................................................................................ 6
D. WHEN SERVICING THE APPLIANCE ....................................................................................................................................... 7
E. APPLIANCE WATER .................................................................................................................................................................. 7
PART 2
– BEFORE YOU START ................................................................................................................................................ 7
A. WHAT’S IN THE BOX ................................................................................................................................................................. 7
B. HOW THE APPLIANCE OPERATES .......................................................................................................................................... 7
C. OPTIONAL EQUIPMENT ........................................................................................................................................................... 9
PART 3
– PREPARE APPLIANCE LOCATION .......................................................................................................................... 9
A. BEFORE LOCATING THE APPLIANCE ..................................................................................................................................... 9
B. LEVELING ................................................................................................................................................................................ 10
C. CLEARANCES FOR SERVICE ACCESS ................................................................................................................................. 10
D. RESIDENTIAL GARAGE INSTALLATION ................................................................................................................................ 11
E. EXHAUST VENT AND INTAKE PIPE ....................................................................................................................................... 11
1. DIRECT VENT INSTALLATION OF EXHAUST VENT AND INTAKE PIPE ................................................................................. 11
2. INDOOR COMBUSTION AIR INSTALLATION IN CONFINED OR UNCONFINED SPACE ........................................................ 11
F. PREVENT COMBUSTION AIR CONTAMINATION .................................................................................................................. 12
G. REMOVING AN APPLIANCE FROM A COMMON VENT SYSTEM ........................................................................................ 12
H. WATER CHEMISTRY ............................................................................................................................................................... 13
PART 4 - DOMESTIC WATER PIPING ..................................................................................................................................... 16
A. TEMPERATURE AND PRESSURE RELIEF VALVE FOR DHW .............................................................................................. 16
B. DOMESTIC HOT WATER EXPANSION TANK ........................................................................................................................ 16
C. DOMESTIC WATER PIPING .................................................................................................................................................... 17
D. APPLIANCE PIPING ................................................................................................................................................................. 17
E. MIXING VALVE INSTALLATION .............................................................................................................................................. 17
F. AUXILIARY PIPING .................................................................................................................................................................. 19
PART 5 - HYDRONIC PIPING ................................................................................................................................................... 20
A. HYDRONIC HEATING MODULE PIPING ................................................................................................................................. 20
B. PRESSURE RELIEF VALVE FOR THE HYDRONIC SYSTEM ................................................................................................ 20
C. HYDRONIC EXPANSION TANK AND MAKE UP WATER ....................................................................................................... 20
D. HYDRONIC HEATING MODULE SYSTEM PIPING ................................................................................................................. 20
E. HYDRONIC HEATING MODULE OUTPUT .............................................................................................................................. 21
F. HYDRONIC PIPING .................................................................................................................................................................. 24
