A.O. Smith GPDH, GPDX Location of Heater, Water Connections, Water Potable Heating Space Heating

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Canadian Standards Association, 8501 East Pleasant Valley Road, Cleveland, OH 44131, and both documents are available from the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.

The appliance, when installed, must be electrically grounded in accordance with local codes or in the absence of local codes with the current edition of the National Electrical Code, ANSI/NFPA 70.

LOCATION OF HEATER

The heater is design certified by the Canadian Standards Association for installation with the following minimum clearances between the water heater and combustible and non- combustible construction are: 0 inches from side, 0 inches from back, 6 inches (152 mm) from front of jacket to closet door and 12 inches (30.5 cm) from top of jacket to combustible and non-combustible material. Minimum vent clearance: 0 inches. Provide 24 inches (61 cm) front clearance for servicing and adequate clearance between the jacket top and ceiling for servicing the flue area. Also see clearance for venting on pages 6 & 7.

WARNING

FAILURE TO HAVE REQUIRED CLEARANCES BETWEEN WATER HEATER AND COMBUSTIBLE MATERIAL WILL RESULT IN A FIRE HAZARD.

Adequate clearance for servicing this appliance should be considered before installation, such as changing the anodes, etc.

Installation:

at least 18" above the floor. This

Do not install water heater

where flammable products will

will reduce, but not eliminate, the

be stored or used unless the

risk of vapors being ignited by the

main burner and pilot flames are

main burner or pilot flame.

When installing the heater, consideration must be given to proper location. Location selected should be as close to the wall as practicable and as centralized with the water piping system as possible.

CAUTION

In cold climates provide protection against freeze-up.

THE HEATER SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE OF THE TANK OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE AREA ADJACENT TO THE HEATER OR TO LOWER FLOORS OF THE STRUCTURE.

When such locations cannot be avoided, a suitable drain pan should be installed under the heater, see Figure 1. The pan should have a minimum length and width of at least 2 inches (51mm) greater than the diameter of the heater and should be piped to an adequate drain. Drain pans suitable for these heaters are available from your dealer or A. O. Smith Water Products Company, 5621 W. 115th Street, Alsip, Illinois 60803.

WARNING

DO NOT INSTALL THIS WATER HEATER DIRECTLY ON A CARPETED FLOOR. A FIRE HAZARD MAY RESULT. Instead the water heater must be placed on a metal or wood panel extending beyond the full width and depth by at least 3 inches (76.2mm) in any direction. If the heater is installed in a carpeted alcove or closet, the entire floor shall be covered by the panel. Also, see DRAINING.

WATER CONNECTIONS

Refer to Figure 1 for typical installation. A suitable pipe thread sealant must be used to prevent leakage.

WATER (POTABLE) HEATING AND

SPACE HEATING

1.All piping components connected to this unit for space heating applications shall be suitable for use with potable water.

2.Toxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system.

3.This unit may NEVER be connected to any existing heating system or component(s) previously used with a non-potable water heating appliance.

4.When the system requires water for space heating at temperatures higher than required for domestic water purposes, a tempering valve must be installed. Please refer to Figure 2 for suggested piping arrangement.

FIGURE 2.

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Contents Residential With HOT Surface Ignition Replacement Parts and Deliming ProductsGAS Model External Damage Chemical Vapor CorrosionExtended NON-USE Periods Insulation BlanketsWater Connections Location of HeaterWater Potable Heating Space Heating GAS Connections Closed Water SystemVenting Combustion AIR and Exhaust Venting Through an Outside Wall ClearancesVenting Through AN Outside Wall Wire FenceVenting Through Roof Clearances Vent piping can be installed as follows Venting System Example Installation For ALL ModelsDIA. Vents Number of 90 DEG Approximate Setting Time for 2-1/2 to 4 Pipe Joints Vent Pipe SeparationCementing PVC, ABS or Cpvc Pipe and Fittings Movement Complete Joint SETWiring Connecting Vent to BlowerVenting Through a Roof ElbowsOptional Field Installed Wiring What to do if YOU Smell GAS Do not TRY to Light the Burner by HandTemperature Regulation FillingHigh Altitude Installation Venting Manual Reset SwitchWater Heating Ignition Sequence Control Sequence HOT Surface Direct IgnitionHigh Temperature Limit Switch Power Venter MaintenanceMain Burner Venting SystemService and Repair Thermostat and GAS Supply CheckTrouble Shooting Water Heater Control LED Status Problem SolutionHOT Water Vent Pipe TOO HOTYellow Flame CondensationLimited Residential GAS Warranty Southeast Parkway FRANKLIN, TN

GPDT, GPDH, GPDX specifications

A.O. Smith is a renowned leader in the manufacturing of water heating solutions, and its series of gas water heaters, including the GPDT, GPDH, and GPDX models, are emblematic of the company’s commitment to innovation, efficiency, and reliability.

The A.O. Smith GPDT series is characterized by its high energy efficiency and robust design. With a 40-gallon capacity, it utilizes a 0.67 energy factor, making it an ideal choice for both residential and light commercial applications. This model features a unique combustion system that minimizes emissions while maximizing hot water output. Equipped with a powered draft system, the GPDT series effectively vents combustion gases, improving air quality and lowering operational costs.

In contrast, the GPDH series is particularly notable for its compatibility with high-efficiency gas appliances. It employs a direct vent system, allowing for versatile installation options. The GPDH models also include advanced diagnostics and a LED display that simplifies monitoring and maintenance. With an enhanced insulation design, these heaters minimize heat loss, effectively optimizing performance and energy savings.

The GPDX series capitalizes on cutting-edge technologies to provide superior performance. With capacities ranging from 30 to 50 gallons, these water heaters are designed to meet varying needs. The GPDX is equipped with a dual-purpose valve that offers superior temperature control and safety features, ensuring user convenience and peace of mind. Its intuitive interface allows users to easily set their desired water temperature and monitor performance metrics.

One of the key characteristics that unify the GPDT, GPDH, and GPDX models is their commitment to durability. A.O. Smith incorporates high-quality materials and innovative engineering processes to enhance the longevity of their products. Each model features an impressive warranty, demonstrating the company’s confidence in their craftsmanship.

In conclusion, A.O. Smith's GPDT, GPDH, and GPDX gas water heater series offer a blend of efficiency, performance, and innovation. These models are equipped with advanced technologies designed to provide users with reliable hot water solutions while minimizing energy consumption. With their robust build, user-friendly features, and impressive warranties, A.O. Smith continues to be a top choice for those seeking dependable gas water heating solutions.
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