Invention Grant
- Patent Title: Thermostat system with software-repurposable wiring terminals adaptable for HVAC systems of different ranges of complexity
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Application No.: US14205159Application Date: 2014-03-11
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Publication No.: US09746859B2Publication Date: 2017-08-29
- Inventor: Brian J. Conner , Joseph E. Palmer , David Sloo
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: F23N5/20
- IPC: F23N5/20 ; G05D23/00 ; G05D23/275 ; F25D21/02 ; G05D23/19 ; F24F11/00

Abstract:
An auxiliary hardware box is described that can be installed at or near the HVAC system. The auxiliary box includes a large number of wiring terminals, for example 16 or more, for connecting to a relatively large number of HVAC control wires. The auxiliary box can include a “train map” type graphic display that is visible to the installer and provides a graphical indication as to which relays or switches are currently open and which are currently closed. A small sleek visually pleasing thermostat is also described that can be connected either directly to an HVAC system or to the auxiliary box, and can automatically detect an purpose the connected wires according to which it is connected to.
Public/Granted literature
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