DIFFERENTIAL PRESSURE SWITCHES Provide for each fan or pump specified, or shown on point list. Provide shutoff valves at piping takeoff points. Readjust pressure and/or differential setpoints for proper operation after final balancing is completed. CURRENT STATUS SWITCHES Provide for each fan or pump specified, or shown on point list. Set threshold adjustment to indicate belt or coupling loss. Readjust threshold for proper operation after final balancing is completed. Use the variable frequency drive (VFD) integrated relay output for motor status, if provided on the VFD, in lieu of a discrete current switch. A separate current switch provided under this Section shall be wired in parallel with the VFD motor status relay when a bypass starter is provided on the VFD to prove motor status in the bypass mode. CONSTRUCTION VERIFICATION Contractor is responsible for utilizing the construction verification checklists supplied under specification Section 23 08 00 in accordance with the procedures defined for construction verification in Section 01 91 01 or 01 91 02. AGENCY TRAINING All training provided for agency shall comply with the format, general content requirements and submission guidelines specified under Section 01 91 01 or 01 91 02. Delete the paragraph below and specify training hours under 23 09 23 section if the DDC controls are open bid (not negotiated by DFD). The required amount of training will vary with each facility. Videotaping of training must be reviewed for each project. This may not be required or could be reduced. Coordinate this with the owner agency and DFD during development of the project. Contractor to provide factory authorized representative and/or field personnel knowledgeable with the operations, maintenance and troubleshooting of the system and/or components defined within this section for a minimum period of [XX] hours. END OF SECTION
DIFFERENTIAL PRESSURE SWITCHES Provide for each fan or pump specified, or shown on point list. Provide shutoff valves at piping takeoff points. Readjust pressure and/or differential setpoints for proper operation after final balancing is completed. CURRENT STATUS SWITCHES Provide for each fan or pump specified, or shown on point list. Set threshold adjustment to indicate belt or coupling loss. Readjust threshold for proper operation after final balancing is completed. Use the variable frequency drive (VFD) integrated relay output for motor status, if provided on the VFD, in lieu of a discrete current switch. A separate current switch provided under this Section shall be wired in parallel with the VFD motor status relay when a bypass starter is provided on the VFD to prove motor status in the bypass mode. CONSTRUCTION VERIFICATION Contractor is responsible for utilizing the construction verification checklists supplied under specification Section 23 08 00 in accordance with the procedures defined for construction verification in Section 01 91 01 or 01 91 02. AGENCY TRAINING All training provided for agency shall comply with the format, general content requirements and submission guidelines specified under Section 01 91 01 or 01 91 02. Delete the paragraph below and specify training hours under 23 09 23 section if the DDC controls are open bid (not negotiated by DFD). The required amount of training will vary with each facility. Videotaping of training must be reviewed for each project. This may not be required or could be reduced. Coordinate this with the owner agency and DFD during development of the project. Contractor to provide factory authorized representative and/or field personnel knowledgeable with the operations, maintenance and troubleshooting of the system and/or components defined within this section for a minimum period of [XX] hours. END OF SECTION
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