Wall mountable connector with built in jumper functionality
View Patent ↗A wall mountable connector for securing a thermostat to a wall is disclosed. The wall mountable connector may include built in jumper functionality. In some cases, the wall mountable connector may include a plurality of wiring terminals as well as structure enabling an installer or other person to easily electrically connect (e.g. jumper) one or more of the wiring terminals in order to accommodate different equipment installations. For example, in some cases there may be a desire to electrically connect (e.g. jumper) or disconnect certain wiring terminals that correspond to transformer input terminals, which in some equipment installations are intended to be independently powered while in others they are not.
1. A wall mountable connector for securing a thermostat to a wall, the wall mountable connector comprising:
a housing configured to be mounted to a vertical surface;
the housing defining a field wire aperture through the back side of the housing, the field wire aperture configured to accommodate one or more field wires;
a plurality of wiring terminals each for electrically connecting to one or more of the field wires, the plurality of wiring terminals including an R wiring terminal for electrically connecting a wire from a heat transformer, an R C wiring terminal for electrically connecting a wire from a cool and/or fan transformer, and a U wiring terminal for electrically connecting a wire from an accessory transformer;
an R switch manually moveable between a closed position in which the R switch electrically connects the R wiring terminal and the R C wiring terminal, and an open position in which the R switch electrically disconnects the R wiring terminal and the R C wiring terminal; and
a U switch manually moveable between a closed position in which the U switch electrically connects the R C wiring terminal and the U wiring terminal, and an open position in which the U switch electrically disconnects the R C wiring terminal and the U wiring terminal.
2. The wall mountable connector of claim 1 , wherein the plurality of wiring terminals comprise:
a first column of wiring terminals disposed on a first side of the field wire aperture, the first column of wiring terminals including the U wiring terminal;
a second column of wiring terminals disposed on a second opposing side of the field wire aperture, the second column of wiring terminals including the R wiring terminal and the R C wiring terminal; and
the U switch located adjacent the U wiring terminal and the R switch located adjacent to the R wiring terminal and the R C wiring terminal.
3. The wall mountable connector of claim 1 , further comprising a door movable between an open position in which the first column of wiring terminals and the second column of wiring terminals are visible and a closed position in which the first column of wiring terminals and the second column of wiring terminals are hidden from view.
4. The wall mountable connector of claim 3 , wherein the R switch and the U switch are hidden behind the door when the door is in the closed position.
5. The wall mountable connector of claim 1 , wherein the R switch includes an R switch slider for moving the R switch between its closed position and its open position.
6. The wall mountable connector of claim 5 , further comprising a label disposed on the housing indicating a direction for moving the R switch slider in order to close the R switch.
7. The wall mountable connector of claim 1 , wherein the U switch includes a U switch slider for moving the U switch between its closed position and its open position.
8. The wall mountable connector of claim 7 , further comprising a label disposed on the housing indicating a direction for moving the U switch slider in order to close the U switch.
9. A wall mountable connector for securing a thermostat to a wall, the wall mountable connector comprising:
a housing configured to be mounted to a vertical surface;
the housing defining a field wire aperture through the back side of the housing, the field wire aperture configured to accommodate one or more field wires;
a plurality of wiring terminals each for electrically connecting to one or more of the field wires, the plurality of wiring terminals including an R wiring terminal for electrically connecting a wire from a heat transformer, an R C wiring terminal for electrically connecting a wire from a cool and/or fan transformer, and a U wiring terminal for electrically connecting a wire from an accessory transformer;
a conductive switch member that includes an R leg, an R C leg and a U leg, the R leg, R C leg and a U leg are all electrically connected together;
the R leg is moveable between a closed position in which the R leg is electrically coupled with the R wiring terminal and an open position in which the R leg is electrically disconnected from the R wiring terminal;
the R C leg is electrically coupled with the R C wiring terminal; and
the U leg is moveable between a closed position in which the U leg is electrically coupled with the U wiring terminal and an open position in which the U leg is electrically disconnected from the U wiring terminal;
an R slider that is actuatable to move the R leg between the closed position and the open position; and
a U slider that is actuatable to move the U leg between the closed position and the open position.
10. The wall mountable connector of claim 9 , wherein the R slider includes a cam that lifts the R leg out of contact with the R wiring terminal when the R leg is in the open position.
11. The wall mountable connector of claim 9 , wherein the U slider includes a cam that lifts the U leg out of contact with the U wiring terminal when the U leg is in the open position.
12. The wall mountable connector of claim 9 , further comprising a door movable between an open position in which the plurality of wiring terminals are visible and a closed position in which the plurality of wiring terminals are hidden from view.
13. The wall mountable connector of claim 12 , wherein the R slider switch and the U slider switch are hidden behind the door when the door is in the closed position.
14. The wall mountable connector of claim 9 , wherein the plurality of wiring terminals comprise:
a first column of wiring terminals disposed on a first side of the field wire aperture, the first column of wiring terminals including the U wiring terminal;
a second column of wiring terminals disposed on a second opposing side of the field wire aperture, the second column of wiring terminals including the R wiring terminal and the R C wiring terminal.
15. The wall mountable connector of claim 14 , wherein the U wiring terminal is a lowermost terminal of the first column of wiring terminals.
16. The wall mountable connector of claim 15 , wherein the R wiring terminal and the R C wiring terminal are the lowermost two terminals of the second column of wiring terminals.
17. A method of wiring a wall mountable connector that includes an R switch that selectively electrically couples an R wiring terminal to an R C wiring terminal and a U switch that selectively couples the R C wiring terminal to a U wiring terminal, the method comprising:
determining the presence or absence of a heat transformer, a cooling or fan transformer and an accessory transformer; and
setting the R switch and the U switch in accordance with the presence or absence of a heat transformer, a cooling or fan transformer and an accessory transformer.
18. The method of claim 17 , wherein setting the R switch and the U switch comprises closing the R switch if there is a single HVAC transformer for heating and cooling, and one side of the single HVAC transformer is wired to the R wiring terminal.
19. The method of claim 17 , wherein setting the R switch and the U switch comprises opening the R switch if there is a heating transformer for heating and a separate cooling transformer for cooling, and one side of the heating transformer is wired to the R wiring terminal and one side of the cooling transformer is wired to the R C wiring terminal.
20. The method of claim 17 , wherein setting the R switch and the U switch comprises opening the U switch if an accessory uses its own transformer, and one side of the accessory transformer is wired to the U wiring terminal.