DEMAND CONTROL VENTILATION SYSTEM WITH COMMISSIONING AND CHECKOUT SEQUENCE CONTROL

• US 20110264275A1
• Filed: 07/01/2010
• Published: 10/27/2011
• Est. Priority Date: 04/21/2010
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Bokusky, Mark, Kreft, Todd, Thomle, Adrienne
• Granted Patent: US 9,255,720 B2
• Time in Patent Office: Days
• US Class Current: 700/276
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: F24F 11/49 ensuring correct operation, e.g. by trial operation or configuration checks
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/523 for displaying temperature data
• CPC Class Codes: F24F 11/526 giving audible indications
• CPC Class Codes: F24F 11/56 Remote control
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/64 using pre-stored data
• CPC Class Codes: F24F 11/70 Control systems characterised by their outputs; Constructional details thereof
• CPC Class Codes: F24F 12/006 using an air-to-air heat exchanger F24F12/002 takes precedence
• CPC Class Codes: F24F 2011/0006 using low temperature external supply air to assist cooling
• CPC Class Codes: F24F 2012/007 using a by-pass for bypassing the heat-exchanger
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 2219/23193 Memory stores lifetime, different settings, configurations of controlled device
• CPC Class Codes: G05B 2219/2614 HVAC, heating, ventillation, climate control
• CPC Class Codes: Y02B 30/56 Heat recovery units

Abstract

The disclosure relates to a Demand Control Ventilation (DCV) and/or Economizer system that is capable of drawing outside air into an HVAC air stream. In some instances, the DCV and/or Economizer system may be configured to help perform one or more system checks to help verify that the system is functioning properly. In some instances, the DCV and/or Economizer system may provide some level of manual control over certain hardware (e.g. dampers) to help commission the system. The DCV and/or Economizer system may store one or more settings and or parameters used during the commissioning process (either in the factory or in the field), so that these settings and/or parameters may be later accessed to verify that the DCV and/or Economizer system was commissioned and commissioned properly.

Claims

1. A Demand Control Ventilation (DCV) and/or Economizer system for a building, comprising:

a DCV and/or economizer unit having a damper and a controller;

a memory, the memory storing one or more parameters generated during the commissioning of the DCV and/or economizer unit; and

an interface for retrieving one or more of the stored parameters for display to a user.

2. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein one of the parameters includes a date of commissioning parameter.

3. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein one of the parameters includes a person or company parameter.

4. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein one of the parameters includes a minimum damper position parameter.

5. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein one of the parameters includes a maximum damper position parameter.

6. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein one of the parameters includes an airflow parameter.

7. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the memory is a non-volatile memory.

8. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the Demand Control Ventilation (DCV) and/or Economizer system is attached to a roof top HVAC system, and wherein the interface includes a local user interface.

9. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the Demand Control Ventilation (DCV) and/or Economizer system is attached to a roof top HVAC system, and wherein the interface includes a remote user interface.

10. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the Demand Control Ventilation (DCV) and/or Economizer system is attached to a roof top HVAC system, and wherein the interface includes a wired interface.

11. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the Demand Control Ventilation (DCV) and/or Economizer system is attached to a roof top HVAC system, and wherein the interface includes a wireless interface.

12. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the controller includes a test mode, wherein in the test mode, a user can independently control a position of the damper.

13. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the memory is part of the controller.

14. The Demand Control Ventilation (DCV) and/or Economizer system of claim 1, wherein the controller is programmed to perform one or more self-tests of the DCV and/or economizer unit.

15. A Demand Control Ventilation (DCV) and/or Economizer system for a building, comprising:

a roof top DCV and/or economizer unit having a damper and a controller;

the controller programmed to perform one or more self-tests of the DCV and/or economizer unit; and

an interface for outputting a result of the one or more self-tests.

16. The Demand Control Ventilation (DCV) system of claim 15, wherein the controller is configured to perform one or more self-tests at system start-up.

17. The Demand Control Ventilation (DCV) system of claim 15, wherein the controller is configured to perform one or more self-tests on demand by a user.

18. A Demand Control Ventilation (DCV) and/or Economizer system for a building, comprising:

an DCV and/or economizer unit having a damper and a controller, the damper having a range of damper positions for controlling a flow of outside air into the building, and the controller controlling the damper positions such that a desired flow of outside air is drawn through the damper and into the building; and

wherein the controller is configured to store and later confirm the commissioning of the DCV and/or economizer unit.

19. The Demand Control Ventilation (DCV) system of claim 18, wherein the controller is configured to store system commissioning data.

20. The Demand Control Ventilation (DCV) system of claim 19, wherein the system commissioning data is retrievable.