Appendix F Division 23.pdf

23 09 23 BACnet Direct Digital Control Systems for HVAC

All Direct Digital Control project engineers, managers, designers, installers and operators shall understand and comply not only with this section of CSI 360-95-3, but must understand, design, install and implement the Direct Digital Controls in unison with the products and requirements outlined in CSI 360-95-3 Division 25.

New and Legacy Direct Digital Control Systems

Legacy systems are systems that were installed prior to June 2012. These systems are to be maintained and repaired by the original equipment manufacturer utilizing best industry practices for the installed systems The materials outlined in the Direct

Digital Control Specifications(CSI 360-95-3, 23 09 23) are permitted to serve as a basis for materials in legacy systems when component or device replacement is required.

The requirements outlined in this section of CSI 360-95-3 pertain specifically to new Direct Digital Control systems as well as the repair of systems that already comply with CSI 360-95-3 23 09 23(dated June 2012) and Division 25 (dated June 2012).

Persons working on a Direct Digital Control system are encouraged to clarify through the contracting office if the contracted work is a legacy system.

Compliance with DOD instruction 8500.2

The products, configurations and materials outlined in CSI 360-95-3 23 09 23 and Division 25 are in the process of being tested for compliance with DOD instruction 8500.2. Deviations from the products, configurations, installation requirements or materials listed in CSI 360-95-3 23 09 23 and Division 25 are not permitted without written approval from the Chief of Facilities Engineering (ES521). Acceptance of a proposal by the government that does not clearly indicated the materials, products, installation methods and configurations used to develop the proposal does not relinquish the bidder from compliance with CSI 360-95-3 23 09 23 and Division 25.

Notice to Direct Digital Control Designers

Designers of Direct Digital Controls shall utilize DISA ES521 specification 23 09 23 located in CSI 360-95-3 as the base specification for their controls design. The Designer must modify the specification as necessary to accommodate the requirements of the project and their contract. At no time shall the designer directly substitute the specifications located in CSI 23 09 23 without project specific modification to the specifications. The designer shall provide clear indication during each design submittal review what words, sections, materials, products, installation requirements were modified in the Direct Digital Control specification CSI 360-95-3 23 09 23.

Notice to Direct Digital Control Operators

Operators of Direct Digital Control systems within DISA’s Enterprise Services Directorate shall:

1. Become familiar with the specifications outlined in the Direct Digital Controls Specification located in CSI 360-95-3 23 09 23

2. Shall comply with the security requirements outlined in section 1.7 the Direct Digital Controls Specification located in

CSI 360-95-3 23 09 23

3. Comply with the training requirements outlined in CSI 360-95-3 Division 25.

Direct Digital Controls Enterprise Contract

ES521 shall maintain a contract that affords the DISA Enterprise Services Directorate the ability to maintain, repair and install

Direct Digital Controls. The contract shall have the ability to deliver Direct Digital Control services to any of the DISA Enterprise Services Directorate facilities.

The ES521 Direct Digital Controls contract management representative shall work closely with the ES521 TIM contract management representative to ensure that the two contracts do not duplicate efforts are create contractual conflicts or disputes.

Direct Digital Controls Specification 23 09 23

Insert the specifications here or attach to CSI 360-95-3 as appropriate. Ensure that clear direction to the location of the specifications is noted in this section.