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Nu-Calgon Zerol 200TD is compatible with most mineral oils
it provides stable modulation without the risk of hunting
Always verify that your specific float and valve seals are rated for your system's peak operating temperature
ASME Section IV Certified: National Board capacity certified to ensure strict compliance with safety codes for hot water heating systems
Berko 3900-2002-506 Motor Els PW 17895 Nu-Calgon Zerol 200TD is compatibleThe Berko 3900 2002 506 is a specialized 208V 2 speed motor engineered specifically for compatibility with select Berko and QMark electric heater assemblies. Designed for heavy duty commercial and industrial air handling, this direct drive motor ensures consistent airflow across heating elements to maintain optimal heat exchange and prevent thermal overload cycles. Operating at 208 Volts, this OEM replacement component features a multi speed
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