A.O. Smith FCG-100 Instruction Manual

Manual is about: RESIDENTIAL GAS WATER HEATERS

Summary of FCG-100

  • Page 1

    1 instruction manual printed in the u.S.A 0905 part no. 184165-003 keep this manual in the pocket on heater for future reference whenever maintenance adjustment or service is required. Not for use in manufactured (mobile) homes all technical and warranty questions: should be directed to the local de...

  • Page 2: Safe Inst

    2 safe inst safe inst safe inst safe inst safe installa alla alla alla allation tion tion tion tion, use and service , use and service , use and service , use and service , use and service your safety and the safety of others is extremely important in the installation, use and servicing of this wate...

  • Page 3: General Safety

    3 general safety general safety general safety general safety general safety.

  • Page 4: Introduction

    4 safe installation, use and service ............................... 2 general safety .................................................................. 3 table of contents .............................................................. 4 introduction ....................................................

  • Page 5: Typical Inst

    5 typical inst typical inst typical inst typical inst typical installa alla alla alla allation tion tion tion tion get to know your water heater - gas models a vent pipe b drafthood c anode d hot water outlet e outlet f insulation g gas supply h manual gas shut-off valve i ground joint union * insta...

  • Page 6: Typical Inst

    6 typical inst typical inst typical inst typical inst typical installa alla alla alla allation tion tion tion tion figure 2. Mixing valve usage this appliance has been design certified as complying with american national standard/csa standard for water heaters and is considered suitable for: water (...

  • Page 7: Llllloca

    7 facts to consider about the location carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. This water heater is not for use in manufactu...

  • Page 8

    8 figure 3. A gas water heater cannot operate properly without the correct amount of air for combustion. Do not install in a confined area such as a closet, unless you provide air as shown in the “locating the new water heater” section. Never obstruct the flow of ventilation air. If you have any dou...

  • Page 9

    9 unconfined space. The total input of all gas utilization equipment installed in the combined space shall be considered in making this determination. Each opening shall have a minimum free area of one square inch per 1,000 btu per hour (22 cm 2 /kw) of the total input rating of all gas utilization ...

  • Page 10: Inst

    10 water piping hotter water can scald: water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish washing, cleaning and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely t...

  • Page 11

    11 figure 9 shows the typical attachment of the water piping to the water heater. The water heater is equipped with 3/4 inch npt water connections. Note: if using copper tubing, solder tubing to an adapter before attaching the adapter to the cold water inlet connection. Do not solder the cold water ...

  • Page 12

    12 figure 10. Filling the water heater never use this water heater unless it is completely full of water. To prevent damage to the tank, the tank must be filled with water. Water must flow from the hot water faucet before turning “on” gas to the water heater. To fill the water heater with water: 1. ...

  • Page 13

    13 there must be a minimum of 6 inches (153 mm) clearance between single wall vent pipe and any combustible material. Fill and seal any clearance between single wall vent pipe and combustible material with mortar mix, cement, or other noncombustible substance. For other than single wall, follow vent...

  • Page 14

    14 use pipe joint compound or teflon tape marked as being resistant to the action of petroleum [propane (l.P.)] gases. The appliance and its gas connection must be leak tested before placing the appliance in operation. The appliance and its individual shut-off valve shall be disconnected from the ga...

  • Page 15

    15 for your safety read before lighting warning: if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. • if you cannot reach your gas supplier, call the fire department. C. Use only your hand to push in or turn the g...

  • Page 16: For Y

    16 for y for y for y for y for your informa our informa our informa our informa our information tion tion tion tion start up conditions draft hood operation check draft hood operation by performing a worst case depressurization of the building. With all doors and windows closed, and with all air han...

  • Page 17

    17 because of the suddenness and amount of water, condensation water may be diagnosed as a “tank leak”. After the water in the tank warms up (about 1-2 hours), the condition should disappear. Do not assume the water heater is leaking until there has been enough time for the water in the tank to warm...

  • Page 18: Periodic Maintenance

    18 venting system inspection at least once a year a visual inspection should be made of the venting system. You should look for: 1. Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. 2. Damage or deterioration which could cause improper v...

  • Page 19

    19 installed in suitable area: to insure sufficient ventilation and combustion air supply, proper clearances from the water heater must be maintained. See “locating the new water heater” section. Combustible materials such as clothing, cleaning materials, or flammable liquids, etc. Must not be place...

  • Page 20: Leakage Checkpoints

    20 leakage checkpoints leakage checkpoints leakage checkpoints leakage checkpoints leakage checkpoints read this manual first. Then before checking the water heater make sure the gas supply has been turned “off”, and never turn the gas “on” before the tank is completely full of water. Never use this...

  • Page 21: Rep

    21 rep rep rep rep repair p air p air p air p air parts list arts list arts list arts list arts list key no. Part description 1 burner assembly 2 burner head 3 burner orifice 4 burner tube 5 pilot assembly 6 inner door 7 inner door gasket 8 flue baffle 9 flue restrictor 10 drafthood 11 air intake sc...

  • Page 22: Troubleshooting Guidelines

    22 these guidelines should be utilized by a qualified service agent. When calling for service notify the service agent that this is a “flammable vapor ignition resistant” product. Troubleshooting guidelines troubleshooting guidelines troubleshooting guidelines troubleshooting guidelines troubleshoot...

  • Page 23: Notes:

    23 notes: notes: notes: notes: notes:.

  • Page 24

    24 ®.