A.O. Smith 185363-001 Instruction Manual

Manual is about: POWER VENTED GAS MODELS W/HOT SURFACE IGNITION

Summary of 185363-001

  • Page 1

    1 instruction manual printed in the u.S.A 0905 part no. 185363-001 keep this manual in the pocket on heater for future reference whenever maintenance adjustment or service is required. Power vented gas models w/hot surface ignition not for use in manufactured (mobile) homes all technical and warrant...

  • Page 2

    2 safe installation, use and service your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a poten...

  • Page 3: General Safety

    3 general safety.

  • Page 4: Introduction

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

  • Page 5: Typical Installation

    5 typical installation get to know your water heater - gas models a vent pipe–exhaust b vent terminal c vent adapter-rubber boot d blower assembly e cold water inlet f inlet water shut-off valve g union h inlet dip tube j anode** figure 1. K hot water outlet l outlet receptacle (115 vac) m temperatu...

  • Page 6: Typical Installation

    6 typical installation 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 (potable) heating and space heating: all models are considered suitable for water (potable) h...

  • Page 7

    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 and 12" (30.5 cm) from the top. (standard clearance.) if clearances stated on the heater differ from standard clearances, install water heater according to clearances stated on the heater. Adequate clearance for servicing this appliance should be considered before installation, such as changing th...

  • Page 9

    9 chemical vapor corrosion of the flue, blower assembly and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and p...

  • Page 10

    10 the water within the water heater tank expands as it is heated and increases the pressure of the water system. If the relieving point of the water heater’s temperature-pressure relief valve is reached, the valve will relieve the excess pressure. The temperature-pressure relief valve is not intend...

  • Page 11

    11 figure 10 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 gas piping make sure the gas supplied is the same type listed on the model rating plate. The inlet gas pressure must not exceed 14 inch water column (3.5 kpa) for natural and propane gas (l.P.). The minimum inlet gas pressure shown on the rating plate is that which will permit firing at rated inp...

  • Page 13

    13 sediment traps a sediment trap shall be installed as close to the inlet of the water heater as practical at the time of water heater installation. The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet or other device recognized as an effective sediment trap. If...

  • Page 14

    14 vent connections to blower assembly figure 15 shows the optimal placement of the 2" to 3" or 3" to 4" reducer; however, the vent can be reduced at any point in the vent system as long as the maximum and minimum vent length requirements are met. Figure 15. Venting and installation plan the layout ...

  • Page 15

    15 the unit may be vented horizontally through a wall or vertically through the roof. Pipe runs must be adequately supported along both vertical and horizontal runs as follows: • for schedule 40, 2" pvc, abs, coex cellular core vent pipe: every 3 feet (0.9 m). • for schedule 40, 3" pvc, abs, coex ce...

  • Page 16

    16 for 4" venting, the maximum equivalent feet of pipe allowed is 160 feet (48.8 m). This does not include the vent termination (supplied locally) for the water heater. For the 4" venting, one 90° elbow is approximately equal to 8 feet (2.4 m). One 45° elbow is approximately equal to 4 feet (1.2 m)....

  • Page 17

    17 figure 16. This unit can vent through 2", 3" or 4" nonmetallic pipe and fittings. The vent pipe installation can be started from either the blower discharge or the termination wall. Keep in mind the total vent system (pipe and elbows) when installing the vent system, see venting and installation,...

  • Page 18

    18 vent pipe preparation 1. Initial preparation a. Make sure the solvent cement you are planning to use is designed for the specific application you are attempting. B. Know the physical and chemical characteristics and limitations of the pvc and cpvc piping materials that you are about to use. C. Kn...

  • Page 19

    19 b. Deburring use a knife, plastic pipe deburring tool, or file to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°- 15° should be added to the end to permit easier inserti...

  • Page 20

    20 for your safety read before operating warning: if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the b...

  • Page 21: Temperature Regulation

    21 due to the nature of the typical gas water heater, the water temperature in certain situations may vary up to 30°f (16.7°c) higher or lower at the point of use such as, bathtubs, showers, sink, etc. Any water heater’s intended purpose is to heat water. Hot water is needed for cleansing, cleaning,...

  • Page 22: For Your Information

    22 for your information start up conditions condensate whenever the water heater is filled with cold water, some condensate will form while the burner is on. A water heater may appear to be leaking when in fact the water is condensate. This usually happens when: a. A new water heater is filled with ...

  • Page 23: Periodic Maintenance

    23 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 24

    24 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 25: Leakage Checkpoints

    25 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 water heater unless it is completely filled with water. To prevent damage to th...

  • Page 26: Repair Parts List

    26 key no. Part description 1 burner assembly 2 burner head 3 burner orifice 4 burner tube 5 hsi ignition assembly 6 inner door 7 inner door gasket 8 flue baffle 9 flue restrictor 10 blower assembly 11 air intake screen - base pan 12 inlet tube 13 gas control valve 14 drain valve 15 drain valve wash...

  • Page 27: Troubleshooting Guidelines

    27 troubleshooting guidelines troubleshooting guidelines trouble shooting please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the general safety information section first. Problem solution an open earth ground circuit ...

  • Page 28: Troubleshooting Guidelines

    28 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.

  • Page 29: Notes:

    29 notes:.

  • Page 30: Notes:

    30 notes:.

  • Page 31

    31 this warranty is applicable to the original owner only. If the glass lined tank in this water heater shall prove upon examination by (the warrantor) to have leaked during the warranty period in normal residential use, due to natural corrosion from potable water therein, the warrantor will furnish...

  • Page 32

    32 5621 w. 115th street, alsip, il 60803 phone: 1-800-433-2545 fax: 1-800-433-2515 w w w.Hotwater.Com e-mail: parts@hotwater.Com.