WARNING

CONDENSATE ALSO DRAINS FROM TWO LOCATIONS ON THE BLOWER ASSEMBLY AS SHOWN IN FIGURE 5. A CONDENSATE HOSE MUST BE SECURED TO FORM A "TRAP" AS SHOWN IN FIGURE 5 FOR THESE CONDENSATE DRAIN CONNECTIONS. THESE TWO HOSES MAY BE CONNECTED TOGETHER. THE HOSE(S) SHOULD BE ROUTED TO A SUITABLE DRAIN. A fitting that may be used to join the two hoses from the blower assembly is included in a supplied kit.

FIGURE 5

3.Make sure that plastic tubing is still attached to the pressure switch and fan housing. Also make sure that wiring connector from motor to control box is securely attached.

4.Do not plug in power cord until vent system is completely installed. The Power Vent operates on 110-120 Vac. therefore a grounded outlet must be within reach of the 6 foot flexible power cord supplied with the vent (see fig.1). The power cord supplied may be used on a unit only where local codes permit. If local codes do not permit use of flexible power supply cord:

A.Make sure the unit is unplugged from the wall outlet. Remove the plastic top cap. Remove screws and open panel on the front of the control box on the blower.

B.Cut the flexible power cord, leaving enough to be able to make connections. Remove the strain relief fitting from the box.

C.Install a suitable conduit fitting inside the enclosure.

D.Splice field wiring into existing wiring using code authorized method (wire nuts, etc).

E.Be certain that neutral and line connections are not reversed when making these connections.

F.Ground heater properly. This water heater must be grounded in accordance with the National Electrical Code NFPA 70 and/or local codes. These must be followed in all cases.

The water heater must be connected to a grounded metal, permanent wiring system; or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal or lead on the water heater, see Figure 7.

G.Close the panel on the control box. Make sure that the access panel is secured shut.

5.The blower discharge boot is made to accept only straight sections of 2" pipe. To start off with an elbow, a short section of the furnished pipe, a minimum of 2 inches, must be cut and glued into the end of the elbow that will mount on the discharge boot.

INSTALLATION OF VENT SYSTEM

Before beginning installation of piping system thoroughly read the section of this manual VENT PIPE PREPARATION.

If you are installing your system so that it vents through roof, please refer to section titled INSTALLATION OF VERTICAL VENT SYSTEM.

VENT TERMINAL INSTALLATION, SIDEWALL

1.Install the vent terminal by using the cover plate as a template to mark the hole for the vent pipe to pass through the wall.

BEWARE OF CONCEALED WIRING AND PIPING INSIDE THE WALL.

2.If the Vent Terminal is being installed on the outside of a finished wall, it may be easier to mark both the inside and outside wall. Align the holes by drilling a hole through the center of the template from the inside through to the outside. The template can now be positioned on the outside wall using the drilled hole as a centering point for the template.

3.A) MASONRY SIDE WALLS

Chisel an opening approximately one half inch larger than the marked circle.

B) WOODEN SIDE WALLS

Drill a pilot hole approximately one quarter inch outside of the marked circle. This pilot hole is used as a starting point for a saws-all or sabre saw blade. Cut around the marked circle staying approximately one quarter inch outside of the line. (This will allow the vent to easily slide through the opening. The resulting gap will be covered up by the Vent Terminal cover plate.) Repeat this step on inside wall if necessary.

SEQUENCE OF INSTALLATIONS, FIGURE 6

Cut a length of PVC pipe about 3.5 inches longer than the wall thickness at the opening. Glue the vent terminal to this section of pipe. Slide the wall plate over the pipe to stop against the vent terminal. Place a bead of caulking (not supplied) around the gap between the pipe and cover plate. Apply enough to fill some of the gap between the pipe and wall. Place some of the caulking on the back of the plate to hold it against the wall after installation. If the vent pipe is installed up to the wall, with a coupling on the end against the wall opening, the pipe with the vent terminal can be prepared for gluing before inserting through the wall. Slide the pipe through the wall and insert into the coupling on the other side of the wall, making sure that the vent terminal ends up pointed in the correct position, see Figure 6.

VENT TERMINATION - FIGURE 6

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A.O. Smith BTX-80 warranty Installation of Vent System, Vent Terminal INSTALLATION, Sidewall, Vent Termination Figure
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BTX-80 specifications

The A.O. Smith BTX-80 is a high-efficiency water heater designed to meet the needs of both residential and light commercial applications. Engineered with the latest technology, this unit promises reliability and superior performance, making it a standout choice for those seeking an efficient hot water solution.

One of the primary features of the BTX-80 is its energy efficiency. With a high Energy Factor (EF) rating, this water heater is designed to minimize energy consumption while delivering reliable hot water. This feature not only helps owners save on utility bills but also contributes to a more sustainable living environment.

The BTX-80 utilizes advanced condensing technology, allowing it to extract heat from exhaust gases that would typically be expelled. This process enhances its efficiency and reduces the amount of fuel needed to heat water, ensuring that users benefit from lower operating costs. The unit comes equipped with a built-in power vent system, which allows for flexible installation options and an easy, straightforward setup.

Another notable characteristic of the A.O. Smith BTX-80 is its robust build quality. Designed with durable materials, it features a glass-lined tank that helps prevent rust and corrosion, extending the lifespan of the unit. The BTX-80 is also equipped with advanced insulation, which ensures minimal heat loss and improved energy retention.

Safety features are paramount when it comes to water heating, and the BTX-80 does not disappoint. It includes a fully integrated safety system that protects against overheating and excessive pressure, ensuring peace of mind for homeowners and business operators alike.

Additionally, the BTX-80 has a user-friendly digital display and diagnostic control system, allowing users to easily monitor and adjust settings. It also features multiple installation configurations to adapt to various space requirements.

In summary, the A.O. Smith BTX-80 water heater combines high energy efficiency, advanced condensing technology, robust construction, and user-friendly features. Ideal for those seeking a reliable and sustainable hot water solution, this model is a testament to A.O. Smith's commitment to innovation and quality in the water heating industry.
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