Assessments - 2, GPA: 4.5 ( )

Fabricante : American International Arquivo Tamanho: 5.08 mb Arquivo Nome : Língua de Ensino:

The air inlet must be located with respect to the exhaust outlet as shown in figure 7A (bottom). Install a drain tee assembly and trap in the inlet vent as close to the water heater as possible. This is to drain any water that may be in the combustion air pipe and prevent it from entering the blower. Connect the trap drain line to a suitable drain or downstream of the condensate trap of the water heater. Note: See “Venting Additional Polaris® Units” on Page 10 for correct terminations if installing more than one Polaris® gas water heater. Alternative Horizontal Termination The combustion air and exhaust terminations may be raised up to 24 inches above the wall penetrations if required for anticipated snow levels (see figure 8A). The two elbows shown in figure 8A are considered part of the termination and should not be included when determining the maximum allowable vent pipe length. Note: See “Venting Additional Polaris® Units” on Page 10 for correct terminations if installing more than one Polaris® gas water heater. Figure 7A: Standard Horizontal Termination (100,000 - 150,000 BTU/Hr Models) Figure 8A: Alternate Horizontal Termination (100,000 - 150,000 BTU/Hr Input Models) 10 VERTICAL TERMINATIONS (100,000 - 150,000 BTU/HR) When 3 inch pipe is used between the water heater and the roof, reduce it to 2 inch pipe before penetrating the roof. A maximum of 18 inches of 2 inch pipe may be used between the 3 inch transition and the inside of the roof. The vertical inlet air termination requires a return bend or two short or long sweep radius 90 elbows to keep the inlet downward and prevent entry of rain. These elbows are considered part of the termination and should not be included when calculating the maximum allowable vent pipe length. Refer to figure 9A for the proper location of the air inlet with respect to the exhaust outlet termination. The vertical exhaust outlet termination is a 2 inch pipe which terminates at least 12 inches above the inlet air termination. The air inlet and exhaust outlet terminations must be at least 12 inches above the roof line or anticipated snow levels. See figure 9A below. Note: See “Venting Additional Polaris® Units” below if installing more than one Polaris® gas water heater. Venting Additional Polaris® Units (100,000 - 150,000 BTU/hr Models) When using two (2) Polaris® units, install vent terminations using either Method A or Method B below: When using three or more Polaris® units, install vent terminations per Method C or Method D: Figure 9A: Vertical Termination (100,000 - 150,000 BTU/Hr Models) 11 CONCENTRIC VENT TERMINATIONS (100,000 - 150,000 BTU/HR) For new installations, install 2” Concentric vent kit model KGAVT0501CVT, part number 6910542. See Manufacturer’s instructions for complete installation or call customer service at 1-800-456-9805 for assistance. For planning purposes, see figures 10A-13A below for vent terminal specifications. Note: For replacement installations, previously installed American Water Heater Company supplied concentric vent kits are acceptable for use on 100,000-130,000 BTU/Hr models only. Figure 10A: 2 Inch Concentric Vent Figure 11A: Through the Wall Termination Figure 12A: Through the Roof Termination Figure 13A: Through the Wall Termination Note: For concentric venting terminations (all models), see “Concentric Venting Multiple Water Heaters” on Page 14. 12 INLET/OUTLET VENT TERMINATIONS (175,000+ BTU/HR) Figure 8B: Alternative Horizontal Termination (175,000+ BTU/Hr or greater input models) Figure 7B: Standard Horizontal Termination (175,000+ BTU/Hr models) Standard Horizontal Termination The standard horizontal air inlet termination is a 3 inch pipe which terminates at the exterior wall and utilizes a coupling to prevent the pipe from being pushed back into the structure. The standard horizontal exhaust outlet termination is a 3 inch pipe which terminates 12 inches from the outside wall. The air inlet must be located with respect to the exhaust outlet as shown in figure 7B (bottom). Install a 3 inch coupling at the outside wall on both the inlet and exhaust to prevent the terminations from being pushed inward. Install a drain tee assembly and trap in the inlet vent as close to the water heater as possible. This is to drain any water that may be in the combustion air pipe and prevent it from entering the blower. Connect the trap drain line to a suitable drain or downstream of the condensate trap of the water heater. Note: See “Venting Additional Polaris® Units” on Page 13 for correct terminations if installing more than one Polaris® gas water heater. Alternative Horizontal Termination The combustion air and exhaust terminations may be raised up to 24 inches above the wall penetrations if required for anticipated snow levels (see figure 8B). The two elbows shown in figure 8B are considered part of the termination and should not be included when determining the maximum allowable vent pipe length. Note: See “Venting Additional Polaris® Units...

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