primary circuit definition
primary circuit means an assembly of water fittings in which water circulates between a boiler or other source of heat and a primary heat exchange inside a hot water storage vessel, and includes any space heating system;
primary circuit means the circuit defined as the primary circuit in the Order Form for a User Site;
primary circuit means an assembly of pipes and fittings in which water circulates between a boiler or other water heater and the primary heater inside a hot water storage vessel;
More Definitions of primary circuit
primary circuit means the Access Circuit carrying a SIP Trunk and Channels, selected by default as the main circuit in a configuration that includes a Backup circuit;