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  5. Instruction Manual

A.O. Smith 130 Series Instruction Manual

Manual is about: POWER VENT/POWER DIRECT VENT GAS MODELS WITH DIRECT SPARK IGNITION

Summary of 130 Series

  • Page 1

    1 instruction manual printed 1213 326459-000 keep this manual in the pocket on heater for future reference whenever maintenance adjustment or service is required. Power vent/power direct vent gas models with direct spark ignition models gdhe-50/gdhe-75 series 130/131 all technical and warranty quest...

  • Page 2

    2 table of contents safe installation, use and service.................................3 approvals .................................................................................3 general safety information .............................................4 precautions ...................................

  • Page 3

    3 the proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. 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 potential injury hazard. Read and...

  • Page 4: Caution

    4 precautions do not use this water heater if any part has been under water. Immediately call a qualified service agency to inspect the water heater and to make a determination on what steps should be taken next. If the unit is exposed to the following, do not operate heater until all corrective ste...

  • Page 5

    5 general safety information.

  • Page 6: Caution

    6 fire hazard do not install water heater on carpeted floor. Do not operate water heater if flood damaged. For continued protection against risk of fire: fire or explosion hazard read instruction manual before installing, using or servicing water heater. Avoid all ignition sources if you smell gas. ...

  • Page 7

    7 thank you for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. Abbreviations used abbreviations found in this instruction manual include : • ansi - american national standards institute • asme - american society of mechanical engine...

  • Page 8

    8 dimensions and capacity data rough in dimensions: 50 gallon unit figure 1a: dimensions for 75 gallon unit rough in dimensions: 75 gallon unit figure 1: dimensions for 50 gallon unit table 1 – rough-in-dimensions units a b c d e f g h i 50g inches 66.75 49.25 22.00 15.75 3.00 8.00 8.00 62.00 65.00 ...

  • Page 9

    9 dimensions and capacity data table 2 – capacity, gas and electrical characteristics approximate capacity manifold pressure electrical characteristics u.S. Gals. Liters gas type “wc kpa volts/hz amperes 50 189 nat./lp 0 0 120/60 75 284 nat/lp 0 0 120/60 all models - maximum supply pressure: 14 inch...

  • Page 10

    10 * caution harness has 120 vac. In operation. ** see planning the vent system, installation of vent system and condensate piping for more information. Figure 1b: 50 gallon unit vacuum relief valve *install per local codes 50 gallon unit features and components 24 18 35 31 9 4 2 3 19 **29 20 22 23 ...

  • Page 11

    11 * caution harness has 120 vac. In operation. ** see planning the vent system, installation of vent system and condensate piping for more information. Vacuum relief valve *install per local codes 75 gallon unit features and components (cont.) 24 18 35 31 9 4 2 3 19 22 23 21 1 12 17 25 11 **29 5 18...

  • Page 12

    12 features and components (cont.) 1: control assembly 2: blocked intake switch 3: blocked outlet switch 4: blower prover switch 5: blower assembly 6: burner assembly 7: flame sensor 8: igniter assembly 9: junction box 10: gas control valve assembly 11: display board 12: top plastic enclosure 13: di...

  • Page 13

    13 controls and switches this model is provided with three pressure switches. These switches are essential to the safe and proper operation of the unit. All switches are wired in series. The controller is set up to shut the unit down whenever there is a failure of any of the switches. It is importan...

  • Page 14: Caution

    14 locating the water heater carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the water heater. Property damage hazard all water heaters eventually leak. • do not i...

  • Page 15

    15 minimum clearances between the water heater and combustible construction are 0 inch at the sides and rear, 5.5” (14.0 cm) from the front and 18” (45.7 cm) from the top. (standard clearance.) if clearances stated on the heater differ from standard clearances, install water heater according to clea...

  • Page 16

    16 unconfined space an unconfined space is one whose volume is not less than 50 cubic feet per 1,000 btu/hr (4.8 cubic meters per kw) of the total input rating of all appliances installed in the space. Rooms communicating directly with the space, in which the appliances are installed, through openin...

  • Page 17

    17 alternatively a single permanent opening, commencing within 12 inches (300 mm) of the top of the enclosure, shall be provided. See figure 6. The water heater shall have clearances of at least 1 inch (25 mm) from the sides and back and 6 inches (150 mm) from the front of the appliance. The opening...

  • Page 18

    18 installation requirements chemical vapor corrosion corrosion of the flueways and vent system may occur if air for combustion contains certain chemical vapors. Such corrosion may result in failure and risk of asphyxiation. Spray can propellants, cleaning solvents, refrigerator and air conditioning...

  • Page 19

    19 mixing valves water temperature over 125°f (52°c) can cause severe burns instantly resulting in severe injury or death. Children, the elderly and the physically or mentally disabled are at highest risk for scald injury. Feel water before bathing or showering. Temperature limiting devices such as ...

  • Page 20

    20 gas supply systems low pressure building gas supply systems are defined as those systems that cannot under any circumstances exceed 14” w.C. (1/2 psi gauge). These systems do not require pressure regulation. Measurements should be taken to insure that gas pressures are stable and fall within the ...

  • Page 21

    21 space heating and potable water system your water heater is equipped with inlet/outlet connections for use in space heating applications (see figure 9). If this water heater is to be used to supply both space heating and potable (drinking) water, the instructions listed below must be followed: • ...

  • Page 22: Caution

    22 water damage hazard temperature-pressure relief valve discharge pipe must terminate at adequate drain. • caution t&p valve discharge pipe requirements: • shall not be smaller in size than the outlet pipe size of the valve, or have any reducing couplings or other restrictions. • shall not be plugg...

  • Page 23

    23 condensate piping this water heater is a condensing unit and requires a drain to be located in close proximity to allow the condensate to drain safely. The condensate drains from the unit at the exhaust tee located at the bottom of the unit (see figure 11). Condensate from this water heater is mi...

  • Page 24

    24 for all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the commonwealth and where the side ...

  • Page 25

    25 vent installation considerations this water heater can be vented using room air for intake combustion air, or direct vented so that all intake air for combustion comes from the outside through a sealed pipe. This water heater may be installed in 4 separate orientations depending on the requiremen...

  • Page 26

    26 polypropylene installations the water heater has been approved to be installed with polypropylene vent material as shown in table 5 and table 6. The approved application of single wall, non-flexible, non-concentric polypropylene vent material is offered by two specific manufacturers (centrotherm ...

  • Page 27

    27 installation of horizontal through the wall vent system if you are installing your system so that it vents through roof, please refer to section titled vertical vent terminal installation. Vent terminal installation, sidewall 1. Install the vent terminal by using the cover plate as a template to ...

  • Page 28

    28 direct vent terminal installation the air intake provided on the unit contains an air intake screen to prevent large particles from entering the unit. Figure 13: air intake screen when the unit is to be setup as a direct vent, the air intake screen must be removed. The air intake pipe may then be...

  • Page 29

    29 termination clearances sidewall power vent v x vent terminal air supply inlet area where terminal is not permitted v v a g v fixed closed fixed closed operable operable v c b b b b f b v v a j v h m x x v v k b e d l power vent (using room air for combustion) exterior clearances for sidewall vent...

  • Page 30

    30 termination clearances sidewall direct vent v x vent terminal air supply inlet area where terminal is not permitted v v a g v fixed closed fixed closed operable operable v c b b b b f b v v a j v h m x x v v k b e d l direct vent (using outdoor air for combustion) exterior clearances for sidewall...

  • Page 31

    31 vertical vent terminal installation when terminating through a roof, the following specifications pertaining to terminal location must be followed. 1. Proper support must be provided for all pipe protruding through the roof. 2. The vertical roof terminations should be sealed with a plumbing roof ...

  • Page 32

    32 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.

  • Page 33

    33 concentric vent installation this water heater is certified for concentric venting with concentric vent kit #9006328005. Follow instructions below for proper installations. Table 8 – kit components field supplied pipe and fittings are required to complete the installation. This concentric vent te...

  • Page 34

    34 note: do not allow insulation or other materials to accumulate inside pipe assembly when installing through hole. 5. Secure assembly to roof structure as shown in “figure: 27” using field supplied metal strapping or equivalent support material. Note: ensure termination height is above the roof su...

  • Page 35

    35 5. Install rain cap and small diameter pipe assembly in y concentric fitting and large pipe assembly. Ensure small diameter pipe is bottomed and cemented in y concentric fitting. 6. Secure assembly to structure as shown in “figure: 28” using field-supplied metal strapping or equivalent support ma...

  • Page 36

    36 low profile termination installation this water heater is certified for sidewall direct venting with ipex system 636 low profile vent kit. Follow instructions below for proper installations. All termination kits must be located and installed in accordance with local codes or the current editions ...

  • Page 37

    37 lighting and operation labels.

  • Page 38

    38 valves for reducing the point-of-use temperature by mixing cold and hot water are available. Also available are inexpensive devices that attach to faucets to limit hot water temperatures. Contact a licensed plumber or the local plumbing authority. The table below shows the approximate time-to-bur...

  • Page 39

    39 the desktop screen during normal operation the control system will display the desktop screen on the lcd which is the default screen. The control system will return to the desktop screen when there are no active fault or alert conditions or when there has been no user input for several minutes. •...

  • Page 40

    40 status icons the status icons are displayed on the desktop screen and convey operational and diagnostic information. The icons are described in the table below. Table 12 – status icons icon description water temperature in the tank has fallen. Shaded area of the animated thermometer icon will ris...

  • Page 41

    41 operating states the current operational state of the water heater is displayed on the desktop screen as the status. The common operational states are described in the table below. Table 13 – operating states state description standby the water heater is not in an active heating cycle. Ie: the ta...

  • Page 42

    42 user settings & control system menus temperatures operating set point and differential adjustment the operating set point is adjustable from 90°f (42°c) to 160°f (71°c). The factory setting is 120°f (49°c). The differential is adjustable from 2° to 20°. The factory setting is 8°. These user setti...

  • Page 43

    43 temperatures (cont) description/action display • tank probe offset - adjustable user setting, range -5° to +5°f (factory setting 0°f). The tank probe offset is used to calibrate control system temperature sensing. This offsets to more effectively read point of use temperature in the tank. This fe...

  • Page 44

    44 display settings description/action display select display settings from the main menu and press the operational button under "select" to enter this menu. This menu contains adjustable display options for viewing information on the lcd screen. Use the up & down buttons to navigate the menu. • tem...

  • Page 45

    45 current fault description/action display select current fault from the main menu and press the operational button under "select" to enter this menu. This menu contains non adjustable operational information. Use the up & down buttons to navigate the menu. This menu contains the current fault or a...

  • Page 46

    46 service contact information the control system has a discrete menu that installing contractors and/or qualified service technician can access to enter contact information for their customers. This contact information will be displayed with all fault and alert messages. Description/action display ...

  • Page 47

    47 start up conditions smoke/odor it is not uncommon to experience a small amount of smoke and odor during the initial start-up. This is due to burning off of oil from metal parts, and will disappear in a short while. Thermal expansion water supply systems may, because of such events as high line pr...

  • Page 48

    48 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 49

    49 powered anode rod (optional models) to insure a long, trouble-free operating life, certain models of water heaters covered in this manual are factory equipped with a powered anode system. The anode rod is of a permanent design and does not need replacing unless damaged. Inspection and cleaning sh...

  • Page 50

    50 to drain the water heater storage tank: 1. Turn off the electrical supply to the water heater. 2. Turn off the gas supply at the main gas shutoff valve if the water heater is going to be shut down for an extended period. 3. Ensure the cold water inlet valve is open. 4. Open a nearby hot water fau...

  • Page 51

    51 never use this water heater unless it is completely filled with 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. A *condensation may be seen on pipes in humid weather or pipe connection...

  • Page 52

    52 troubleshooting sequence of operation read the sequence of operation below before attempting to correct any operational problems. See the sequence of operation flow chart. 1. When the control system is first powered, during boot up, the blower will run momentarily and stop, and the control system...

  • Page 53

    53 sequence of operation flow chart yes no water is heated to set point 24 v gas valve de-energized 60 second inter-purge cycle 24 v gas valve de-energized retries up to two more times 60 second post-purge cycle control system locks out “ignition failure” fault msg is displayed water heater goes int...

  • Page 54: Caution

    54 if the main burner ignites momentarily but does not sustain ignition allow the water heater to try to ignite up to two more times until control system locks out and the ignition failure fault message is displayed on the control system's lcd. If the water heater is experiencing rough starts - see ...

  • Page 55

    55 only qualified service technician, as defined in qualifications using appropriate test equipment, should perform any service procedures on the water heater. Note: if you are not qualified and licensed or certified as required by the authority having jurisdiction to perform a given task do not att...

  • Page 56

    56 fault and alert messages call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service technician in your area. Possible causes - check/repair displayed fault/alert message • the control system has failed to ignite the main burn...

  • Page 57

    57 fault and alert messages (cont) call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service technician in your area. Possible causes - check/repair displayed fault/alert message • the control system has detected the blower pro...

  • Page 58

    58 caution label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Figure: 40 power vent wiring schematic wiring diagram.

  • Page 59

    59 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 60

    60 www.Hotwater.Com 500 tennessee waltz parkway, ashland city, tn 37015 tech support: 800-527-1953 parts: 800-433-2545 copyright © 2013 a. O. Smith corporation, all rights reserved..