Direct Venting for GPV Models | State Industries 540A, 650A, 740A

FIGURE 6.

DIRECT VENTING - FOR GPV MODELS

All exhaust vent terminal, flue reducer, and intake vent terminal are supplied with any unit intended for direct venting. These parts must be installed without alteration.

This heater is category III appliance when used in a direct vent application. All national and local codes pertaining to the installation of such an appliance must be followed.

Horizontal portions of the exhaust vent system must be installed with a minimum upward slope of 1/4” (6.35 mm) per foot of length.

Selkirk metalbestos model PS or G vent is approved for use as exhaust venting on these models. Model PS is a double-wall vent with a 1” (25.4 mm) air space between pipes. Model G is a single-wall variation of model PS for use where combustible clearance is not a concern, see Table 4.

TABLE 4.

Selkirk Metalbestos Model PS

Clearance to Combustibles

Interior	6” (152.4 mm)
Exterior	6” (152.4 mm)

8” diameter PVC or galvanized pipe is approved for use as intake venting on these models. Class 63, 100, 125, 200, and schedule 40 pipe may be used for PVC pipe. Intake venting must be adequately supported to avoid unnecessary stress on vent hood, venting, or burner.

See Table 5 limitations on venting system design for direct vent installations.

TABLE 5.

Dimension in		GPV
Inches (mm)		540A -740A
Flue Outlet Dia.		9	(229)
Flue Reducer Dimension		9 x		8
(Supplied)		(229 x		203)
Min. Exhaust Vent Dia. Inch (mm)		8	(203)
Min. Intake Vent Dia. Inch (mm)		8	(203)
Maximum Number Of	90°		4
Elbows, Intake	45°		8
Maximum Number Of	90°		4
Elbows, Exhaust	45°		8
Total Intake Vent	Max.	75	(23 m)
Length, Equiv. Ft.	Min.	3	(1 m)
Total Exhaust Vent	Max.	75	(23 m)
Length, Equiv. Ft.	Min.	6 (1.8)

Note: Barometric draft control is not used in direct vent installations as the venting system must be sealed.

When calculating the equivalent length of a venting system each 90 elbow is equivalent to 10 feet of straight pipe. Each 45 elbow is equivalent to 5 feet (1.5 m) of straight pipe. Do not exceed the maximum number of elbows as shown in Table 5. In no case may the sum of the straight pipe lengths and the equivalent lengths of the elbows exceed the valves in Table 5.

VENT TERMINAL LOCATIONS-EXHAUST

See “Horizontal Venting” in this manual for acceptable locations for exhaust hoods.

VENT TERMINAL LOCATIONS-INTAKE

When considering locations for the intake terminal, bear in mind that the terminal:

740A, 540A, 650A specifications

State Industries is well-known for its high-quality water heating solutions, and among its product lineup, the 650A, 540A, and 740A models stand out for their advanced features and technology. Each of these models cater to different needs, making them versatile choices for both residential and commercial applications.

The State Industries 650A model is designed for efficient hot water delivery, featuring a powerful heating element that ensures rapid heating of water. It has an impressive recovery rate, which is crucial for homes with higher hot water demands. The 650A also integrates a robust insulation system that minimizes heat loss, ensuring energy efficiency. With a capacity of 65 gallons, it is perfectly suited for larger households or small commercial setups.

Next in the lineup is the 540A model, which strikes a balance between performance and size. With a capacity of 54 gallons, this model is ideal for medium-sized homes. It employs advanced heating technology that significantly reduces energy consumption while providing consistent hot water supply. The 540A is also equipped with a user-friendly digital interface that allows homeowners to monitor temperatures and set preferences with ease. Additionally, it features durable construction materials, promoting longevity and reliability in everyday use.

Finally, the 740A model offers the highest capacity of the three, boasting an extensive 74-gallon storage tank. This model is particularly advantageous for larger families or businesses that require substantial hot water availability. Similar to the 650A, the 740A employs advanced insulation techniques, ensuring that energy loss is minimized. It's also equipped with smart technology that allows for remote monitoring and adjustment, providing convenience for busy homeowners.

All three models utilize high-efficiency heating elements and are designed for easy installation and maintenance. They incorporate safety features such as temperature and pressure relief valves to ensure safe operation. Moreover, these units are built to meet or exceed industry standards, making them a reliable choice for anyone looking to invest in a hot water solution. Overall, State Industries continues to lead the market with innovative products like the 650A, 540A, and 740A, catering to diverse hot water needs with efficiency and reliability.

State Industries 540A, 650A, 740A Direct Venting for GPV Models, Vent Terminal LOCATIONS-INTAKE

Models: 740A 540A 650A