초록 ▼

A control system for a fluid-fuel burner, such as a furnace for an HVAC system. The furnace has a variable flow of fuel into the burner. In addition, the circulating air blower is also variable. The furnace heat exchanger plenum is maintained at a substantially constant temperature, as a means for p

A control system for a fluid-fuel burner, such as a furnace for an HVAC system. The furnace has a variable flow of fuel into the burner. In addition, the circulating air blower is also variable. The furnace heat exchanger plenum is maintained at a substantially constant temperature, as a means for providing substantially constant temperature air to the spaces to be heated.

대표청구항 ▼

An apparatus for causing a circulating heat transfer medium to transfer heat and for delivering such heat to a space in response to a heating load being imposed on the space, comprising: a burner for fluid fuels, operably connected to a source of fluid fuel; means for modulating the flow of fluid fu

An apparatus for causing a circulating heat transfer medium to transfer heat and for delivering such heat to a space in response to a heating load being imposed on the space, comprising: a burner for fluid fuels, operably connected to a source of fluid fuel; means for modulating the flow of fluid fuel from the source to the burner; means for enabling the transfer of heat from the burner to the heat transfer medium, operably associated with the burner; means for circulating the heat transfer medium from the means for enabling transfer of heat, to a position remote from the burner, for transfer of at least some of the heat from the heat transfer medium, at the remote position, and for circulating the heat transfer medium back to the means for enabling transfer of heat; and means for modulating the operation of the means for circulating the heat transfer medium, for varying the amount of heat transferred from the heat transfer medium, the modulation of the fuel flow and the modulation of the circulation of the heat transfer medium each being of operably controlled by control means, between at least three respective rates of operation, other than a zero flow rate, the modulation of the fuel flow and the circulation of the heat transfer medium further being controlled so as to be capable of occurring during a single heating cycle towards a continuous balancing of heat being supplied to the space with heating loads being imposed on the space.