SECTION 26 29 23 VARIABLE FREQUENCY DRIVE MOTOR CONTROLLERS GENERAL SUMMARY This section describes general requirements for three phase Variable Frequency Drives (VFD’s) used within heating, ventilating, and air conditioning (HVAC) systems, as specified herein for operation and speed control of electric motors, designed to NEMA Type Design B standards for electrical induction motors and permanent magnet motors. This section includes requirements for VFD’s applied specifically in variable torque HVAC applications, such as fans or pumps which require operation and speed control, including application with manual and automatic bypass. RELATED SECTIONS Section 23 00 00 Heating, Ventilating, and Air Conditioning (HVAC). – Section 23 05 00 Common Work Results for HVAC. – Section 26 00 00 Electrical. – Section 26 05 00 Common Work Results for Electrical. – REFERENCES NFPA 70 National Electric Code (NEC). – UL 508A Standard for Industrial Control Panels. – UL 508C Power Conversion Equipment. – UL 50 / NEMA 250 Standard for Enclosures of Electrical Equipment. – NEMA ICS 7-2014 Adjustable Speed Drives. – NEMA ICS 61800 Adjustable Speed Electrical Power Drive Systems. – SUBMITTALS Product Data: Shall be provided by the manufacturer: a technical product data sheet including installation details, features, performance and electrical ratings, dimensions, weights, mounting arrangements, conduit entry locations, wiring and schematic diagrams and terminal designations. Operating and Maintenance: Shall be provided by the manufacturer: a manual with a standard procedure for safely operating, including procedure of emergency shutdown and any special instructions for maintaining the warranty.
SECTION 26 29 23 VARIABLE FREQUENCY DRIVE MOTOR CONTROLLERS GENERAL SUMMARY This section describes general requirements for three phase Variable Frequency Drives (VFD’s) used within heating, ventilating, and air conditioning (HVAC) systems, as specified herein for operation and speed control of electric motors, designed to NEMA Type Design B standards for electrical induction motors and permanent magnet motors. This section includes requirements for VFD’s applied specifically in variable torque HVAC applications, such as fans or pumps which require operation and speed control, including application with manual and automatic bypass. RELATED SECTIONS Section 23 00 00 – Heating, Ventilating, and Air Conditioning (HVAC). Section 23 05 00 – Common Work Results for HVAC. Section 26 00 00 – Electrical. Section 26 05 00 – Common Work Results for Electrical. REFERENCES NFPA 70 – National Electric Code (NEC). UL 508A – Standard for Industrial Control Panels. UL 508C – Power Conversion Equipment. UL 50 / NEMA 250 – Standard for Enclosures of Electrical Equipment. NEMA ICS 7-2014 – Adjustable Speed Drives. NEMA ICS 61800 – Adjustable Speed Electrical Power Drive Systems. SUBMITTALS Product Data: Shall be provided by the manufacturer: a technical product data sheet including installation details, features, performance and electrical ratings, dimensions, weights, mounting arrangements, conduit entry locations, wiring and schematic diagrams and terminal designations. Operating and Maintenance: Shall be provided by the manufacturer: a manual with a standard procedure for safely operating, including procedure of emergency shutdown and any special instructions for maintaining the warranty.
SmartVFD_HVAC_Guide_Specification.docx