发明名称 |
HVAC SYSTEMS AND METHODS WITH IMPROVED HEATING ELEMENT CONTROL |
摘要 |
Systems, tools, and methods are presented that enable a circuit to introduce a random time delay before actuating a relay to start or stop a supply of electrical power to a heating element of a heating, ventilating, and air conditioning (HVAC) system. In one instance, the circuit includes a time-delay switch electrically connected to the relay. The time-delay switch has a random time delay before entering a closed state or open state. The relay is operable to start and stop a supply of electrical power to the heating element in response to the switch entering, respectively, the closed state and the open state. Other systems, tools and methods are presented. |
申请公布号 |
US2016040907(A1) |
申请公布日期 |
2016.02.11 |
申请号 |
US201414453565 |
申请日期 |
2014.08.06 |
申请人 |
Lennox Industries Inc. |
发明人 |
Powell Joe;Nelson Lee;Boyd Hermon Alan |
分类号 |
F24H9/20;F24H3/04 |
主分类号 |
F24H9/20 |
代理机构 |
|
代理人 |
|
主权项 |
1. An HVAC system, the HVAC system comprising:
at least one source of alternating current for providing electrical power; a circuit corresponding to the at least one source of alternating current and electrically coupled thereto, the circuit comprising: a heating element, a relay electrically connected to the heating element, a time-delay switch electrically connected to the relay and having a random time delay before entering a closed state or an open state, and wherein the relay is configured to start and stop a supply of electrical power to the heating element in response to the time-delay switch entering, respectively, the closed state and the open state; and a thermostat electrically coupled to the time-delay switch, the thermostat configured to trigger a state of the time-delay switch in response to a difference between a measured temperature and a reference temperature. |
地址 |
Richardson TX US |