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HomeMy WebLinkAbout16420.pdf BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 1 SECTION 16420 - ENCLOSED CONTROLLERS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes ac, enclosed controllers rated 600 V and less, of the following types: 1. Across-the-line, manual and magnetic controllers. 2. Reduced-voltage controllers. B. Related Sections include the following: 1. Division 16 Section "Electrical Power Monitoring and Control" for interfacing communication and metering requirements. 2. Division 16 Section "Variable Frequency Controllers" for general-purpose, ac, adjustable-frequency, pulse-width-modulated controllers for use on constant torque loads in ranges up to 200 hp. 3. Division 16 Section "Transient Voltage Suppression" for low-voltage power, control, and communication surge suppressors. 1.3 SUBMITTALS A. Product Data: For each type of enclosed controller. Include dimensions and manufacturer's technical data on features, performance, electrical characteristics, ratings, and finishes. B. Shop Drawings: For each enclosed controller. 1. Include dimensioned plans, elevations, sections, and details, including required clearances and service space around equipment. Show tabulations of installed devices, equipment features, and ratings. Include the following: a. Each installed unit's type and details. b. Nameplate legends. c. Short-circuit current rating of integrated unit. d. Listed and labeled for series rating of overcurrent protective devices in combination controllers by an NRTL acceptable to authorities having jurisdiction. e. Features, characteristics, ratings, and factory settings of individual overcurrent protective devices in combination controllers. 2. Wiring Diagrams: Power, signal, and control wiring. BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 2 C. Coordination Drawings: Floor plans, drawn to scale, showing dimensioned layout, required working clearances, and required area above and around enclosed controllers where pipe and ducts are prohibited. Show enclosed controller layout and relationships between electrical components and adjacent structural and mechanical elements. Show support locations, type of support, and weight on each support. Indicate field measurements. D. Field quality-control test reports. E. Operation and Maintenance Data: For enclosed controllers to include in emergency, operation, and maintenance manuals. In addition to items specified in Division 1 Section "Operation and Maintenance Data," include the following: 1. Routine maintenance requirements for enclosed controllers and all installed components. 2. Manufacturer's written instructions for testing and adjusting overcurrent protective devices. F. Load-Current and Overload-Relay Heater List: Compile after motors have been installed and arrange to demonstrate that selection of heaters suits actual motor nameplate full-load currents. G. Load-Current and List of Settings of Adjustable Overload Relays: Compile after motors have been installed and arrange to demonstrate that dip switch settings for motor running overload protection suit actual motor to be protected. 1.4 QUALITY ASSURANCE A. Manufacturer Qualifications: A qualified manufacturer. Maintain, within 100 miles of Project site, a service center capable of providing training, parts, and emergency maintenance and repairs. B. Source Limitations: Obtain enclosed controllers of a single type through one source from a single manufacturer. C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. D. Comply with NFPA 70. E. Product Selection for Restricted Space: Drawings indicate maximum dimensions for enclosed controllers, minimum clearances between enclosed controllers, and for adjacent surfaces and other items. Comply with indicated maximum dimensions and clearances. 1.5 DELIVERY, STORAGE, AND HANDLING A. Store enclosed controllers indoors in clean, dry space with uniform temperature to prevent condensation. Protect enclosed controllers from exposure to dirt, fumes, water, corrosive substances, and physical damage. B. If stored in areas subject to weather, cover enclosed controllers to protect them from weather, dirt, dust, corrosive substances, and physical damage. Remove loose packing and flammable BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 3 materials from inside controllers; install electric heating of sufficient wattage to prevent condensation. 1.6 COORDINATION A. Coordinate layout and installation of enclosed controllers with other construction including conduit, piping, equipment, and adjacent surfaces. Maintain required workspace clearances and required clearances for equipment access doors and panels. B. Coordinate installation of roof curbs, equipment supports, and roof penetrations. These items are specified in Division 7 Section "Roof Accessories." C. Coordinate features of enclosed controllers and accessory devices with pilot devices and control circuits to which they connect. D. Coordinate features, accessories, and functions of each enclosed controller with ratings and characteristics of supply circuit, motor, required control sequence, and duty cycle of motor and load. 1.7 EXTRA MATERIALS A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. 1. Spare Fuses: Furnish one spare for every five installed, but no fewer than one set of three of each type and rating. 2. Indicating Lights: Two of each type installed. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Square D. 2.2 ACROSS-THE-LINE ENCLOSED CONTROLLERS A. Manual Controller: NEMA ICS 2, general purpose, Class A, with "quick-make, quick-break" toggle or pushbutton action, and marked to show whether unit is "OFF," "ON," or "TRIPPED." 1. Overload Relay: Ambient-compensated type with inverse-time-current characteristics and NEMA ICS 2, Class 10 tripping characteristics. Relays shall have heaters and sensors in each phase, matched to nameplate, full-load current of specific motor to which they connect and shall have appropriate adjustment for duty cycle. BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 4 B. Magnetic Controller: NEMA ICS 2, Class A, full voltage, nonreversing, across the line, unless otherwise indicated. 1. Control Circuit: 120 V; obtained from integral control power transformer. 2. Adjustable Overload Relay: Dip switch selectable for motor running overload protection with NEMA ICS 2, Class 10 tripping characteristic, and selected to protect motor against voltage and current unbalance and single phasing. Provide relay with Class II ground- fault protection, with start and run delays to prevent nuisance trip on starting. C. Combination Magnetic Controller : 1. Provide unless otherwise noted for motor control. 2. Factory-assembled combination controller and disconnect switch. 3. Fusible Disconnecting Means: NEMA KS 1, heavy-duty, fusible switch with rejection- type fuse clips rated for fuses. Select and size fuses to provide Type 2 protection according to IEC 947-4-1, as certified by an NRTL. 4. Nonfusible Disconnecting Means: NEMA KS 1, heavy-duty, nonfusible switch. 5. Circuit-Breaker Disconnecting Means: NEMA AB 1, motor-circuit protector with field- adjustable, short-circuit trip coordinated with motor locked-rotor amperes. 2.3 ENCLOSURES A. Description: Flush- or surface-mounting cabinets as indicated. NEMA 250, Type 1, unless otherwise indicated to comply with environmental conditions at installed location. 1. Outdoor Locations: NEMA 250, Type 3R. 2. Kitchen Areas: NEMA 250, Type 4X, stainless steel. 3. Other Wet or Damp Indoor Locations: NEMA 250, Type 4. 4. Hazardous Areas Indicated on Drawings: NEMA 250, Type 7C. 2.4 ACCESSORIES A. Devices shall be factory installed in controller enclosure, unless otherwise indicated. B. Push-Button Stations, Pilot Lights, and Selector Switches: NEMA ICS 2, heavy-duty type. C. Stop and Lockout Push-Button Station: Momentary-break, push-button station with a factory- applied hasp arranged so padlock can be used to lock push button in depressed position with control circuit open. D. Control Relays: Auxiliary and adjustable time-delay relays. E. Elapsed Time Meters: Heavy duty with digital readout in hours. F. Phase-Failure and Undervoltage Relays: Solid-state sensing circuit with isolated output contacts for hard-wired connection. Provide adjustable undervoltage setting. BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 5 2.5 FACTORY FINISHES A. Finish: Manufacturer's standard paint applied to factory-assembled and -tested enclosed controllers before shipping. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine areas and surfaces to receive enclosed controllers for compliance with requirements, installation tolerances, and other conditions affecting performance. 1. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 APPLICATIONS A. Select features of each enclosed controller to coordinate with ratings and characteristics of supply circuit and motor; required control sequence; duty cycle of motor, controller, and load; and configuration of pilot device and control circuit affecting controller functions. B. Select horsepower rating of controllers to suit motor controlled. 3.3 INSTALLATION A. For control equipment at walls, bolt units to wall or mount on lightweight structural-steel channels bolted to wall. B. Install freestanding equipment on concrete bases. C. Enclosed Controller Fuses: Install fuses in each fusible switch. Comply with requirements in Division 16 Section "Fuses." 3.4 CONCRETE BASES A. Coordinate size and location of concrete bases. Verify structural requirements with structural engineer. 3.5 IDENTIFICATION A. Identify enclosed controller, components, and control wiring according to Division 16 Section "Electrical Identification." BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 6 3.6 CONTROL WIRING INSTALLATION A. Install wiring between enclosed controllers according to Division 16 Section "Conductors and Cables." B. Bundle, train, and support wiring in enclosures. C. Connect hand-off-automatic switch and other automatic-control devices where applicable. 1. Connect selector switches to bypass only manual- and automatic-control devices that have no safety functions when switch is in hand position. 2. Connect selector switches with enclosed controller circuit in both hand and automatic positions for safety-type control devices such as low- and high-pressure cutouts, high- temperature cutouts, and motor overload protectors. 3.7 CONNECTIONS A. Conduit installation requirements are specified in other Division 16 Sections. Drawings indicate general arrangement of conduit, fittings, and specialties. B. Ground equipment according to Division 16 Section "Grounding and Bonding." 3.8 FIELD QUALITY CONTROL A. Prepare for acceptance tests as follows: 1. Test insulation resistance for each enclosed controller element, bus, component, connecting supply, feeder, and control circuit. 2. Test continuity of each circuit. B. Perform the following field tests and inspections and prepare test reports: 1. Perform each electrical test and visual and mechanical inspection, except optional tests, stated in NETA ATS, "Motor Control - Motor Starters" Certify compliance with test parameters. 2. Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest. 3.9 ADJUSTING A. Set field-adjustable switches and circuit-breaker trip ranges. 3.10 DEMONSTRATION A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain enclosed controllers. Refer to Division 1 Section "Demonstration and Training." BICKFORD OF CARMEL, IN 12/12/2012 ENCLOSED CONTROLLERS 16420 - 7 END OF SECTION 16420