Multiple Concentric Termination Arrangements

The illustrations on this page show some of the installation arrangements for multiple concentric terminations that are allowed.

See Multiple Concentric Termination Clearances on page 30 for detailed information on clearances and additional arrangement options.

Note: When multiple concentric terminations are installed through a roof in the same location all termination caps must be at the same height measured from the ground.

Two Concentric Terminations

Two concentric terminations may be installed in close proximity as shown in Figure 37 or with standard clearances when this arrangement is not possible. See Figure 32 on page 30 for detailed information on clearances. See Figure 33 on page 30 when installing three concentric terminations.

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Figure 37

Four Concentric Terminations

Four concentric terminations may be installed in close proximity as shown in Figure 38. See Figure 34 and Figure 35 on page 30 for detailed information on clearances and additional arrangement options.

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Figure 38

Eight Concentric Terminations

Eight concentric terminations may be installed in two stacked groups of four, in close proximity, as shown in Figure 39. See Figure 36 on page 30 for detailed information on clearances.

Lateral groups of four as shown in Figure 35 on page 30 may be a more convenient installation arrangement for multiple groups depending on available space.

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Figure 39

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Image 31
American Water Heater HCG3 130T 300 Multiple Concentric Termination Arrangements, Two Concentric Terminations