HTP Phoenix Series - General Safety Information; Precautions for Safe Operation

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LP-179 REV. 11.26.14
TABLE OF CONTENTS
PART 1 – GENERAL SAFETY INFORMATION .......................................................................................................................... 5
A. PRECAUTIONS .......................................................................................................................................................................... 5
B. IMPROPER COMBUSTION ........................................................................................................................................................ 6
C. GAS ............................................................................................................................................................................................ 6
D. WHEN SERVICING THE HEATER ............................................................................................................................................. 6
E. HEATER WATER........................................................................................................................................................................ 6
PART 2 – BEFORE YOU START ................................................................................................................................................ 7
A. WHAT’S IN THE BOX ................................................................................................................................................................. 7
B. HOW THE HEATER OPERATES ............................................................................................................................................... 7
C. OPTIONAL EQUIPMENT ........................................................................................................................................................... 8
PART 3 – PREPARE WATER HEATER LOCATION .................................................................................................................. 9
A. BEFORE LOCATING THE HEATER .......................................................................................................................................... 9
B. LEVELING ................................................................................................................................................................................ 10
C. CLEARANCES FOR SERVICE ACCESS ................................................................................................................................. 10
D. RESIDENTIAL GARAGE INSTALLATION ................................................................................................................................ 10
E. EXHAUST VENT AND INTAKE PIPE ....................................................................................................................................... 10
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 .................................................................................................................. 11
G. REMOVING A HEATER FROM A COMMON VENT SYSTEM................................................................................................. 12
H. WATER CHEMISTRY ............................................................................................................................................................... 13
PART 4 – HEATER PIPING ....................................................................................................................................................... 16
A. GENERAL PIPING INFORMATION .......................................................................................................................................... 16
B. SCALDING ................................................................................................................................................................................ 17
C. TEMPERATURE AND PRESSURE RELIEF VALVE................................................................................................................ 17
D. BACKFLOW PREVENTER ....................................................................................................................................................... 17
E. POTABLE EXPANSION TANK ................................................................................................................................................. 17
F. WATER PIPING ........................................................................................................................................................................ 18
G. AUXILIARY CONNECTIONS ................................................................................................................................................... 18
H. PIPING DIAGRAMS .................................................................................................................................................................. 19
PART 5 – VENTING, COMBUSTION AIR AND CONDENSATE REMOVAL............................................................................ 28
A. GENERAL ................................................................................................................................................................................. 28
B. APPROVED MATERIALS FOR EXHAUST VENT AND INTAKE PIPE .................................................................................... 29
C. REQUIREMENTS FOR INSTALLATION IN CANADA .............................................................................................................. 29
D. EXHAUST VENT AND INTAKE PIPE LOCATION.................................................................................................................... 30
E. EXHAUST VENT AND INTAKE PIPE SIZING .......................................................................................................................... 31
F. LONGER VENT RUNS ............................................................................................................................................................. 31
G. EXHAUST VENT AND INTAKE PIPE INSTALLATION ............................................................................................................ 32
H. VENTING DRAWINGS ............................................................................................................................................................. 33
1. DIRECT VENT INSTALLATION OF EXHAUST VENT AND INTAKE PIPE ......................................................................................................... 33