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American Water Heater Residential Gas Water Heaters, VG6250T 110, VGD625T 100 DIRECT VENT DIAGRAM

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12” MINIMUM CLEARANCE ABOVE HIGHEST

ANTICIPATED SNOW LEVEL

12” MINIMUM CLEARANCE

ABOVE HIGHEST ANTICIPATED

SNOW LEVEL

24” MINIMUM SEPARATION. EXHAUST

MUST BE AT SAME LEVEL OR ABOVE

INTAKE TERMINAL.

Figure: 20

Figure: 22 Figure: 23

Figure: 21

DIRECT VENT DIAGRAM

Contents

Main Instruction Manual For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER. TABLE OF CONTENTS DANGER WARNING CAUTION CAUTION SAFE INSTALLATION, USE AND SERVICE APPROVALS PRECAUTIONS CAUTION GENERAL SAFETY INFORMATION GROUNDING INSTRUCTIONS HYDROGEN GAS FLAMMABLE Explosion Hazard Page Fire Hazard CAUTION GENERAL SAFETY INFORMATION Fire or Explosion Hazard Read instruction manual before installing, using or servicing water heater. Breathing Hazard - Carbon Monoxide Gas INTRODUCTION ABBREVIATIONS USED QUALIFICATIONS PREPARING FOR THE INSTALLATION DIMENSIONS AND CAPACITY DATA ROUGH IN DIMENSIONS: 50 GALLON UNIT ROUGH IN DIMENSIONS: 75 GALLON UNIT DIMENSIONS AND CAPACITY DATA Table 2 CAPACITY, GAS AND ELECTRICAL CHARACTERISTICS Table 3 RECOVERY CAPACITIES 50 GALLON UNIT Figure 1B: 50 GALLON UNIT FEATURES AND COMPONENTS 75 GALLON UNIT FEATURES AND COMPONENTS (CONT.) Figure 1C: 75 GALLON UNIT FEATURES AND COMPONENTS (CONT.) CONTROLS AND SWITCHES 50 GALLON UNIT 75 GALLON UNIT LOCATING THE WATER HEATER CAUTION INSTALLATION CONSIDERATIONS Property Damage Hazard All water heaters eventually leak. Do not install without adequate drainage. INSULATION BLANKETS COMBUSTION AIR AND VENTILATION Figure 4: COMBUSTION AIR AND VENTILATION UNCONFINED SPACE CONFINED SPACE Figure: 6 FRESH AIR OPENINGS FOR CONFINED SPACES OUTDOOR AIR THROUGH TWO OPENINGS OUTDOOR AIR THROUGH TWO HORIZONTAL DUCTS Figure: 7 AIR FROM OTHER INDOOR SPACES Figure: 8 INSTALLATION REQUIREMENTS CHEMICAL VAPOR CORROSION WATER PIPING POWER SUPPLY MIXING VALVES Table 4 GAS PIPING GAS SUPPLY SYSTEMS GAS PRESSURE REQUIREMENTS SUPPLY GAS REGULATOR SPACE HEATING AND POTABLE WATER SYSTEM Figure: 9 CLOSED WATER SYSTEMS THERMAL EXPANSION Figure: 10 CAUTION Temperature-Pressure Relief Valve discharge pipe must terminate at adequate drain. Burn hazard. Hot water discharge. Keep clear of Temperature- Pressure Relief Valve discharge outlet. TEMPERATURE-PRESSURE RELIEF VALVE Explosion Hazard CONDENSATE PIPING Figure: 11 HIGH ALTITUDE INSTALLATIONS FILLING THE WATER HEATER INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS VENTING INSTALLATION VENT INSTALLATION CONSIDERATIONS POLYPROPYLENE INSTALLATIONS Table 5 Table 6 INSTALLATION OF HORIZONTAL THROUGH THE WALL VENT SYSTEM Figure 12: VENT TERMINATION VENT PIPE TERMINATION PLANNING THE VENT SYSTEM Table 7 DIRECT VENT TERMINAL INSTALLATION Figure 13: AIR INTAKE SCREEN Figure: 13A INSTALLATION SEQUENCE Figure: 14 V X v v G CBB F V X v v G CBB F VERTICAL VENT TERMINAL INSTALLATION Figure: 19 Figure: 18 DIRECT VENT DIAGRAM CONCENTRIC VENT INSTALLATION Table 8 KIT COMPONENTS Figure: 27 SAFETY CONSIDERATIONS Figure: 24 CONCENTRIC TERMINATION FLAT ROOF CLEARANCE Figure: 27A INSTALLATION SIDE WALL TERMINATION Figure: 28 Figure: 29 MULTI-CONCENTRIC VENT TERMINATIONS Figure 30: CONCENTRIC VENT TERMINATIONS FOR HORIZONTAL DIRECT VENTING Figure 31: CONCENTRIC VENT TERMINATIONS FOR VERTICAL DIRECT VENTING THROUGH A ROOF LOW PROFILE TERMINATION INSTALLATION Figure: 32 Table 9 Table 10 Figure: 33 Page TEMPERATURE REGULATION Table 11 CONTROL SYSTEM OPERATION Operating Set Point 120F UIM (user interface module) Table 12 STATUS ICONS Icon Description Table 13 OPERATING STATES State Description Table 14 CONTROL SYSTEM MENUS Menu Description USER SETTINGS & CONTROL SYSTEM MENUS Operating Set Point 120F MENU HELP Temperatures Heater Status Display Settings Heater Information Current Fault Main Menu Operating Set Point 120F Operating Set Point 140F CHANGE BACK HELP Bottom of Menu Top of Menu Temperature Units F Backlight Delay 30s Contrast 60% CHANGE BACK HELP Bottom of Menu Display Settings Top of Menu Blocked Exhaust Fault History YES NO Restore Factory Defaults Are you sure you want to restore the system to factory defaults? -- FOR YOUR INFORMATION START UP CONDITIONS OPERATIONAL CONDITIONS PERIODIC MAINTENANCE VENTING SYSTEM INSPECTION ANODE ROD INSPECTION POWERED ANODE ROD (OPTIONAL MODELS) TEMPERATURE-PRESSURE RELIEF VALVE TEST Explosion Hazard DRAINING AND FLUSHING Burn harzard. Hot water discharge. Keep hands clear of drain valve discharge. Burn hazard. Hot water discharge. Keep clear of Temperature- Pressure Relief Valve discharge outlet. SERVICE LEAKAGE CHECKPOINTS Figure: 38 TROUBLESHOOTING SEQUENCE OF OPERATION INSTALLATION CHECKLIST SEQUENCE OF OPERATION FLOW CHART Figure: 39 OPERATIONAL PROBLEMS CAUTION Fire and Explosion Hazard Excessive gas pressure to gas valve can cause serious injury or death. Do not use water heater with any gas other than the gas shown on the rating plate. Burn Hazard FAULT AND ALERT CONDITIONS Electrical Shock Hazard POSSIBLE CAUSES - CHECK/REPAIR DISPLAYED FAULT/ALERT MESSAGE Ignition Failure Blocked Exhaust POSSIBLE CAUSES - CHECK/REPAIR DISPLAYED FAULT/ALERT MESSAGE Blower Prover Failure Blower Prover Open No Anode Voltage Blocked Air Intake Energy Cut Out (ECO) Page LIMITED RESIDENTIAL GAS WARRANTY CONDITIONS AND EXCEPTIONS SERVICE AND LABOR RESPONSIBILITY LIMITATION ON IMPLIED WARRANTIES CLAIM PROCEDURE