HTP PHE130-55 - General Safety Information; Precautions; Improper Combustion; Gas Safety

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TABLE OF CONTENTS

PART 1 – GENERAL SAFETY INFORMATION .......................................................................................... 7

A. PRECAUTIONS .................................................................................................................................... 7

B. IMPROPER COMBUSTION.................................................................................................................. 8

C. GAS ....................................................................................................................................................... 8

D. WHEN SERVICING THE HEATER ...................................................................................................... 8

E. HEATER WATER .................................................................................................................................. 8

PART 2 – HOW THE HEATER OPERATES ................................................................................................ 8

PART 3 – PREPARE WATER HEATER LOCATION ................................................................................ 10

A. BEFORE LOCATING THE HEATER .................................................................................................. 10

B. LEVELING ........................................................................................................................................... 10

C. CLEARANCES FOR SERVICE ACCESS .......................................................................................... 11

D. RESIDENTIAL GARAGE INSTALLATION ......................................................................................... 11

E. EXHAUST VENT AND INTAKE AIR VENT ........................................................................................ 11

1. DIRECT VENT INSTALLATION OF EXHAUST AND INTAKE ....................................................... 12

2. INDOOR COMBUSTION AIR INSTALLATION IN CONFINED OR UNCONFINED SPACE .......... 12

F. PREVENT COMBUSTION AIR CONTAMINATION ........................................................................... 13

G. REMOVING A HEATER FROM A COMMON VENT SYSTEM.......................................................... 13

H. WATER CHEMISTRY ......................................................................................................................... 14

PART 4: DOMESTIC WATER PIPING ....................................................................................................... 15

A. TEMPERATURE AND PRESSURE RELIEF VALVE FOR DHW ....................................................... 15

B. DOMESTIC HOT WATER EXPANSION TANK .................................................................................. 16

C. DOMESTIC WATER PIPING .............................................................................................................. 17

D. HEATER PIPING ................................................................................................................................ 17

E. MIXING VALVE INSTALLATION ........................................................................................................ 17

F. AUXILIARY PIPING ............................................................................................................................ 20

PART 5: HYDRONIC PIPING ..................................................................................................................... 20

A. HYDRONIC HEATING MODULE PIPING .......................................................................................... 20

B. PRESSURE RELIEF VALVE FOR THE HYDRONIC SYSTEM ......................................................... 21

C. HYDRONIC EXPANSION TANK AND MAKE UP WATER ................................................................ 21

D. HYDRONIC HEATING MODULE SYSTEM PIPING .......................................................................... 21

E. HYDRONIC HEATING MODULE OUTPUT ........................................................................................ 22

F. HYDRONIC PIPING ............................................................................................................................ 25

PART 6: FIELD WIRING ............................................................................................................................ 30

A. FIELD WIRING COMPLIANCE REQUIREMENTS ............................................................................ 30

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HTP PHE130-55 - General Safety Information; Precautions; Improper Combustion; Gas Safety

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