Criterion 6.3.5 High Temperature Control

Criterion text:
Means shall be provided to limit tank temperatures to a value not to exceed the tank supplier's specified high temperature limit. The pressure/temperature relief valve shall not be used for this purpose under normal operating conditions.

Comments:
Installers must set the high limit temperature limit correctly on the differential controller. (Figure 1)

Figure 1

In systems that do not use a differential controller, this requirement must be met by proper system design, i.e., using the correctly sized components. Installer must install only those components approved for a specific system.

Any actions required of the homeowner must be fully described in the operation manual.

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