Criterion 6.1.1.9 Thermal Shock Protection

Criterion text:
The system shall be able to withstand any thermal shock caused by an electric power failure.

Comments:
This criterion is evaluated during SRCC system review.

Installers must follow the manufacturer's SRCC approved installation instructions and system design.

This requirement addresses system components as well as unanticipated occurrences such as power failures and their effects on the overall system.

Numerous components and loss of power situations affect this criteria. These situations can include loss of power to the circulating pump (Figure 1) and system controller. The impact of thermal shock on various system valves as well as the actual overall system design are evaluated during the initial SRCC review.

Although the intent of this criterion is evaluated separately, various other SRCC criteria impact how the total system design will affect this criterion's requirement. Also, please see 6.3.4.

Figure 1

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