LOCHINVAR, LLC Patent applications |
Patent application number | Title | Published |
20150354809 | Modulating Burner With Venturi Damper - A modulating burner apparatus includes a burner and a blower placed upstream of the burner. A venturi is placed upstream of the blower. A damper valve is placed upstream of the venturi. The damper valve has an open position and a restricted position. A smaller gas valve and a larger gas valve are communicated with the venturi. A controller is operably associated with the system to select a position of the damper valve and to select the appropriate one of the gas valves so as to provide a low output operation mode and a high output operation mode, which in combination provide an overall turndown ratio of at least 25:1. | 12-10-2015 |
20130126627 | Control System For A Boiler Assembly - A control system for managing and interfacing a plurality of water heaters, e.g. boilers. The control system includes a first boiler unit controlled by a first boiler control unit and a second boiler unit controlled by a second boiler control unit. The first boiler control unit is operable to coordinate the operation of the first and second boiler units in response to changes in output demand. The flues of the first and second boiler units are connected to a common flue. The control system further includes an interface and an interface control system. The interface control system communicates requests from the interface, to report and/or alter the operating parameters of the first and second boiler units, to the first and second boiler control units and communicates the request outcome(s) back to the interface. | 05-23-2013 |
20130014708 | Gas Fired Modulating Water Heating Appliance With Dual Combustion Air Premix Blowers - A water heating apparatus includes a burner having first and second zones. First and second blowers provide premixed fuel and air to the first and second zones, respectively. An automated control system controls the two blowers. | 01-17-2013 |
20120204816 | Control System For Modulating Water Heater - A control system is provided for a modulated heating system including a plurality of modulating water heaters, which may be modulating boilers. A deadband control scheme provides for reduced cycling of the modulating heater when total system heat demand falls between the maximum output of one heater and the sum of the maximum output of that one point and the minimum firing point of the next subsequent heater. | 08-16-2012 |