14 ETS Installation and Operation Manual
General Piping Guidelines
• All piping must meet or exceed all applicable local, state, and/or federal guidelines, codes, regulations, and
laws.
• Support all piping using hangers. DO NOT support piping by the unit or its components.
• Use isolation valves (provided) to isolate the ETS assembly.
• Use unions (provided) to allow for servicing and, if required, removal of the valve and other components.
• Include drain valves (provided) to assist in servicing of the ETS assembly.
• Use a generous amount of pipe thread sealant. DO NOT use pipe thread tape. When using the valve in a
domestic water application, ensure the thread sealant is compliant with domestic water application and
meets NSF 61 requirements.
Drain
Valve
Figure 6: ETS Assembly (Rear View) Isolation Valves, Unions, and Drain Valves
059326‐00 Rev D
Isolation
Valves
Isolation
Valves
Unions
Drain
Valve
Unions
Heat‐Timer Corp.
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