Westinghouse WGC055NG100 User Manuals

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

  8
• A. BEFORE LOCATING THE HEATER

  9
• B. LEVELING

  9
• 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

  27
• A. GENERAL

  27
• B. APPROVED MATERIALS FOR EXHAUST VENT AND INTAKE PIPE

  28
• C. REQUIREMENTS FOR INSTALLATION IN CANADA

  28
• D. EXHAUST VENT AND INTAKE PIPE LOCATION

  29
• E. EXHAUST VENT AND INTAKE PIPE SIZING

  30
• F. LONGER VENT RUNS

  30
• G. EXHAUST VENT AND INTAKE PIPE INSTALLATION

  31
• H. VENTING DRAWINGS

  32
• 1. DIRECT VENT INSTALLATION OF EXHAUST VENT AND INTAKE PIPE

  32
• 2. VENTING THROUGH AN EXISTING SYSTEM

  35
• 3. INDOOR COMBUSTION AIR INSTALLATION IN CONFINED OR UNCONFINED SPACE

  37
• I. CONDENSATE REMOVAL SYSTEM

  39
• PART 6 – WIRING

  39
• A. LINE VOLTAGE INPUT

  39
• B. LINE VOLTAGE CONDENSATE OUTPUT

  40
• C. LOW VOLTAGE OUTDOOR SENSOR INPUT

  40
• D. INTERNAL WIRING DIAGRAM

  41
• PART 7 – GAS CONNECTIONS

  43
• A. GAS PIPING

  43
• B. GAS TABLE

  43
• C. GAS VALVE

  44
• PART 8 – START-UP PROCEDURE

  45
• A. OPERATING INSTRUCTIONS

  45
• B. OVERALL WATER HEATER AND CONTROL OPERATION

  45
• C. STATUS MENU

  45
• D. OUTDOOR RESET

  46
• E. TEST MODE

  47
• F. MAINTENANCE

  47
• PART 9 – SHUTDOWN

  48
• A. SHUTDOWN PROCEDURE

  48
• B. VACATION PROCEDURE

  48
• C. FAILURE TO OPERATE

  48
• PART 10 – TROUBLESHOOTING

  48
• A. ERROR CODE

  48
• B. HEATER ERROR

  48
• C. LOCKOUT

  48
• PART 11 - MAINTENANCE

  53
• MAINTENANCE NOTES

  56
• CUSTOMER INSTALLATION RECORD FORM

  57
• Gas Fired Commercial Water Heater Limited Warranty

  58