Common venting system for heating, cooling and domestic hot water systems
Assignee1236220 B.C. Ltd.
InventorKeith Richard White
Life of this patent
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Abstract
A common vent application and an independent fan coil are disclosed for improved heating, cooling and water making in a building. The independent fan coil obviates the common boilers and chillers in addition to all the common heating and cooling distribution piping used in known systems. Instead, the fan coils contain all the hydronic heating components and all the components needed to provide AC without the use of common boilers and chilled water systems. The fan coils utilize common vent shaft ducting to exhaust the products of combustion generated for the independent tankless water heater. In addition, the common vent shaft may utilize a negative static pressure environment to exhaust the heat of rejection from the AC portion of the fan coil unit.
Claims22
A system for installation in a structure comprising plural individual suites, the system comprising:
- a common vent shaft arranged to provide air flow from two or more of the suites to the exterior of the structure;
- and
- an independent fan coil system installed in at least one of the suites, the independent fan coil system coupled to the common vent shaft and including:
- a heating section to receive return air from the suite, warm the return air, and deliver the warmed return air to a plenum for distribution into the suite;
- connections coupling the heating section to a source of hydronic heating fluid for said warming the return air;
- and
- a cooling section to cool the return air and supply it to the plenum.
A common venting system for a structure housing multiple suites, the venting system comprising:
- a rigid common venting pipe mounted in the structure, the common venting pipe having a plurality of exhaust gas inlet ports, each inlet port each arranged to receive exhaust gases generated by a corresponding water heater unit located in a respective one of the suites;
- an exit port coupled to the venting pipe and arranged to exhaust gases from the venting pipe to the atmosphere exterior of the structure;
- and
- a pressure means coupled to the common venting pipe for maintaining a preset static pressure in the common venting pipe to draw the exhaust gases, in operation, through the common venting pipe toward the exit port.
An independent fan coil system comprising:
- a controller arranged to receive input signals from a thermostat and generate control signals responsive, at least in part, to the input signals;
- a heating section arranged to receive return air, warm the return air, and deliver the warmed return air to a plenum responsive to control signals generated by the controller;
- the heating section including a hydronic coil coupled to receive hydronic heating fluid for said warming the return air;
- and
- a cooling section to cool the return air and supply it to a plenum for distribution, the cooling section including a heat pump system for removing heat from the return air and or from incoming air from a separate air supply duct.
Dependencies are inferred from the claim text.