HVAC Communication Bus Decoders and Corresponding Methods
First Claim
1. An HVAC communication bus decoder comprising:
- a control circuit having an input for coupling to an HVAC communication bus; and
one or more relays each having an output for coupling to a legacy HVAC system monitoring component;
wherein the control circuit is configured to;
read one or more messages transmitted on the HVAC communication bus;
decode the one or more messages to determine a desired mode of operation called for by a thermostat connected to the HVAC communication bus; and
energize at least one of the one or more relays to emulate a corresponding HVAC legacy signal representing the mode of operation called for by the thermostat to be provided to the legacy HVAC system monitoring device.
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Accused Products
Abstract
In exemplary embodiments, HVAC communication bus decoders and corresponding methods are disclosed. In an exemplary embodiment, an HVAC communication bus decoder includes a control circuit having an input for coupling to an HVAC communication bus and one or more relays each having an output for coupling to a legacy HVAC system monitoring device. The control circuit is configured to read one or more messages transmitted on the HVAC communication bus, decode the one or more messages to determine a desired mode of operation called for by a thermostat connected to the HVAC communication bus, and energize at least one of the one or more relays to emulate a corresponding legacy HVAC signal representing the mode of operation called for by the thermostat to be provided to the legacy HVAC monitoring device.
47 Citations
20 Claims
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1. An HVAC communication bus decoder comprising:
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a control circuit having an input for coupling to an HVAC communication bus; and one or more relays each having an output for coupling to a legacy HVAC system monitoring component; wherein the control circuit is configured to; read one or more messages transmitted on the HVAC communication bus; decode the one or more messages to determine a desired mode of operation called for by a thermostat connected to the HVAC communication bus; and energize at least one of the one or more relays to emulate a corresponding HVAC legacy signal representing the mode of operation called for by the thermostat to be provided to the legacy HVAC system monitoring device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An HVAC system comprising:
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a communicating thermostat; an indoor unit; an outdoor unit; an HVAC communication bus coupled to the thermostat, the indoor unit, and the outdoor unit; a legacy HVAC system monitoring device; and a decoder coupled between the HVAC communication bus and the legacy HVAC system monitoring device, the decoder configured to; read one or more messages transmitted on the HVAC communication bus; decode the one or more messages to determine a desired mode of operation called for by the thermostat; and energize one or more relays to emulate a corresponding legacy HVAC signal representing the mode of operation called for by the thermostat to provide the emulated signal to the legacy HVAC system monitoring device. - View Dependent Claims (13, 14)
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15. A method of decoding an HVAC communication bus, the method comprising:
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reading one or more messages transmitted on the HVAC communication bus; decoding the one or more messages to determine a desired mode of operation called for by a thermostat connected to the HVAC communication bus; energizing one or more relays to emulate a corresponding legacy HVAC signal representing the mode of operation called for by the thermostat; and providing the emulated signal to a legacy HVAC system monitoring device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification