Guide Specification for SmartVFD HVAC VFDs (English)



Honeywell Variable Frequency DriveHoneywell SmartVFD HVAC Drives:The variable frequency drives (VFD’s) shall be designed for use in variable torque HVAC applications to control the speed of HVAC motors in order to maximize energy efficiency of standard and high efficiency induction motors by varying the output voltage and frequency. The VFD shall be integrated with two PID Controllers to maintain constant air pressure or water flow for HVAC systems. The VFD shall include built-in dual 5% DC choke to minimize harmonics from the device. The VFD efficiency shall be 98.5% or better at full load. The VFD shall have built-in communications for BACnet?, N2 and Modbus, for communications with the building management system.VFD’s shall be available with an optional fused disconnect.Honeywell SmartVFD HVAC Drives with Bypass: The variable frequency drives (VFD’s) with integral Bypass option shall be designed for use in HVAC applications to support uninterruptible power to the motor in case of any failure of the VFD.SECTION 26 29 23VARIABLE FREQUENCY DRIVE MOTOR CONTROLLERSGENERALSUMMARYThis 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 SECTIONSSection 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.REFERENCESNFPA 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.SUBMITTALSProduct 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.QUALITY ASSURANCEThe VFD manufacturer shall be reputable and able to provide specialized support and consultation related to control strategies and related field device component operations common to the HVAC, with a minimum of 10 years of documented experience, specializing in VFD for HVAC applications.Source Limitations: VFDs of a single type shall be from a single manufacturer.All VFDs shall be listed and classified by Underwriters Laboratories (cUL), in accordance with the standard EN 61800-5-1 (2007) and meet with the CE requirements and receive a CE label in the body.All VFDs shall be 100% tested at the factory including with a motor load connected prior to shipment. All VFDs shall be functionally tested to ensure proper operation and a factory test report shall be provided.The manufacturer shall adhere to ISO 9001 International Quality Control Standards, regularly reviewed and audited by a third party registrar.ENVIRONMENT CONDITIONSStorage and Protection: The VFD shall be stored indoors with protection from the weather, humidity, dirt, dust or other contaminants. The VFD must be designed to support a storage temperature between -40°F to 158°F.Operating Temperature: The VFD shall be designed to operate in an ambient temperature between 14°F to 104°F.Relative humidity: The VFD shall be designed to operate in a relative humidity between 0 to 95% RH, non-condensing, non-corrosive.Vibration: The VFD shall be suitable for operation at 1 mm (peak) at 5 until 15.8Hz / 1G at 15.8 until 150 Hz.Mechanical Shock: UPS Drop Test (for applicable weights), Storage and shipping: Max 15 G, 11 ms (in package) Altitude: The VFD shall be suitable for operation at altitudes up to 3,280ft with no de-rating. Maximum altitude allowable 14,764ft with appropriate de-rating for size selectionAir Quality: Chemical vapors - IEC 60721-3-3, unit in operation, Class 3C2. Mechanical particles - IEC 60721-3-3, unit in operation, Class 3S2Enclosure class: NEMA 1 standard, NEMA 12 or NEMA 3R optional as specified on the drawings. WARRANTYThe VFD components, parts and assemblies, and workmanship shall be warranted by the manufacturer against defects for a period of 36 months from date of shipment.During the contract warranty period, any perceived defects in the operation of the VFD shall be reported by direct phone contact to the manufacturer from an on-site operator (owner/contractor) for VFD evaluation and warranty consideration.MAINTENANCEMaintenance Service: Manufacturer must maintain a nationwide coverage network of authorized product distributors and authorized maintenance service, including at least one close to the project site capable of providing training, maintenance and parts. Remote Service Support: The manufacturer shall provide a phone support service for immediate remote service assistance which shall be available a minimum of 8 hours per day during non-holiday weekdays.PRODUCTSACCEPATBLE MANUFACTURERSApproved manufacturers are allowed on condition of meeting the specified conditions herein. Manufacturer must meet or exceed all requirements and conditions stated herein. The basis-of-design for this specification is Honeywell SmartVFD HVAC?, models HVFDS.All drives shall be Honeywell SmartVFD HVAC?. No substitutions will be allowed without prior written approval. Substitution requests must be submitted in writing at least 2 weeks prior to bid date and will not be considered without a complete list of deviations from this specification.VARIABLE FREQUENCY DRIVES FOR HVACThe VFD shall be 0-320Hz, designed specifically for use in HVAC applications in which speed control of the motor can be applied and shall include a software Wizard for easy setup of Pumps and Fans through answering questions in the Wizard.The VFD shall include a Real Time Clock, (RTC) with automatic daylight savings time and calendar, able to provide three time channels programmed to perform different functions (start/stop and preset frequencies) based on time and sleep function to minimize downtime energy.The VFD shall have built in 2 stand-alone PID control loops to control HVAC (Pumps and Fans) stand-alone, the PID Controller must allow:Two different feedback signals (minimum and maximum control).Two set point sources for the PID control (selectable with digital input).External PID controller (control of an external final control element).Single input control (analog signal rising edge starts VFD).Run interlock input (Damper interlock) VFD will not start before input is activated.Direct or reverse acting regulation.Feed forward control (faster response to process changes).The integral controller functionality shall provide control of up to 4 motors.The integral controller shall maintain set point by regulating one motor and disconnecting the other motors to/from the mains, by means of digital output relay controlled contactors.The integral controller shall define order/priority in which the motors are started to equalize motor runtime. The VFD shall be in compliance with 100KA SCCR (Short Circuit Current Requirement), EMC harmonics EN 61000-3-12, EMC radio frequencies EN 61800-3, RoHS compliant (no electrolytic capacitors, no lead in the circuit boards), American Recovery and Reinvestment Act (ARRA) and with UL508C Safety. The VFD efficiency shall be 98.5% or better at full load. Displacement power factor rating shall be 98% or better at all speeds and loads.The VFD shall include built-in dual 5% DC choke to minimize harmonic (THD) from the device.The VFD shall have built-in serial communication RS485 for ModBus RTU, BACnet and N2; and Ethernet communication for Modbus TCP and BACnet IP, and allow reading monitored values and reading/writing configuration parameters from the Build Management System. LonWorks communication shall be included if specified on the drawings.The VFD shall provide a removable operator High Resolution Graphics LCD Display with keypad on the front of the VFD which can optionally be remotely mounted. Providing ability to save and write VFD configurations to keypads and exchange keypads with other VFDs of same model type, with a minimum of 4 different languages (Portuguese, Spanish, French and English). The display shall provide the following operator features:START push button.STOP push button.LOCAL/REM push button.BACK/RESET push button.ARROWS UP/DOWN/RIGHT/LEFT push buttons.Indication of RUN, READY, FAULT Status and Operations.Indication of drive rotation directionLive monitoring of up to nine selectable values simultaneously selectable from parameters, including outputs, operating parameters, temperature, drive status, last active fault, fire mode status and application status. The following values shall be monitored as initial set-up:Frequency Reference (Hz)Output Frequency (Hz)Motor Speed (RPM)Motor Current (A)Motor Torque (Nm)Motor Voltage (V)DC-Link Voltage (V)Unit Temperature (°C)Motor Temperature (°C)The menu driven display shall provide the minimum, maximum, and actual values for all parameters, uploading and downloading of parameters, and multiple help functions including integral parameter descriptions available at the parameter on the VFD keypad display. All information shall be full description, no reference codes, to minimize the need for manual reference for setup, commissioning and maintenance.Diagnostic Screen: The display Diagnostic Screen shall provide a description for every fault, as well as the actual values and references stored at the instant of the fault event. The display shall blink the name of the fault when a fault appears. The last 40 faults with time and date stamps shall be stored in VFD history log.System Performance Monitor: The display shall collect and present operational and energy data values:Cumulative amount of energy consumed.Control unit operating time.Motor running time.Amount of time the unit has been powered.Start command count.Fire Mode WizardTechnical Requirements:Main Connection:Input Voltage Uin: 208-240 Vac; 380-480 Vac (-10%, +10%)Input Frequency: 47-66 HzMotor Connection:Output Voltage: 0-UinContinuous output current: IL: Ambient temperature max. +104°F, overload 1.1 x IL (1 min./ 10min.)Starting current: Is for 2 sec. every 20 sec.Output frequency: 0-320 Hz (standard)Frequency resolution: 0.01Hz Control Characteristics:Control Method: Frequency Control U/fSwitching Frequency: 1.5-10 kHzAutomatic switching frequency de-rating in case of overheating.Frequency Reference: Analog Input Resolution 0.1% (10-bit) ±1%, Panel Reference Resolution 0.01 Hz Field Weakening Point: 8-320 HzAcceleration Time: 0.1-3000 sec.Deceleration Time: 0.1-3000 sec.Control Connections:Analog Inputs: (2) inputs as standard for mA or V. Resolution 0.1%, accuracy ±1%, short-circuit protected.Digital Inputs: (6) inputs as standard with positive or negative logic: 0-5 V = “0”, 15-30 V = “1”, Ri = min. 5 k?Motor Thermistor Input: RTrip = 4.7 k? (PTC), measuring voltage 3.5VAux. DC-voltage Input: 24 Vdc, ±10%; can be used for power backup of the control unit.Analog Output: (1) output as standard selection for mA or V. Resolution 0.1%, Accuracy ±2%, short-circuit protected.Digital Outputs: (2) programmable relay outputs (NO/NC) as standard. Max. switching load: 24Vdc / 8 A, 250Vac / 8A or 125 Vdc / 0.4 A. Min. switching load: 5 V / 10 mA.24V Aux. Voltage Output: (1) output: +24 Vdc, ±10%, max. load 250 mA, short-circuit protected.10V ref. Voltage Output: +10 Vdc, +3%, max. load 10 mA Protections:Over voltage.Under voltage.Ground fault.Mains phase supervision.Motor phase supervision.Over current protection.Unit over temperature.Motor overload.Motor stall protection.Motor under load protection.Short-circuit protection of +24V and +10V ref. voltages.Operational Extra Functionality Required:Motor Switch Ride-through: The VFD shall provide trip-free operation when an output switch interrupts power between the VFD and the motor.Ramp Time Optimizer: The VFD shall automatically increase the deceleration time based on controller overvoltage during deceleration or the acceleration time based on current limit during acceleration. Over Temperature Ride-through: The VFD shall automatically adjust switching frequency and speed of the motor to adapt to unusual increase in ambient.Power Ride-through: The VFD shall automatically lower motor speed to adapt to sudden voltage drop or power loss.Configurable Automatic Reset: The VFD shall automatically reset allowed faults and keep resetting during the set trial time period. The VFD shall generate a permanent fault if the number of faults during the trial time period exceeds the value of the fault parameter.Flux Optimization: The VFD shall automatically optimize the voltage/frequency curve to minimize energy consumption.Flying Start: The VFD shall provide trip-free operation and the ability to get an already spinning fan under control.Automatic Torque Boost: The VFD shall automatically increase initial voltage to start high inertia fans; enabling smooth starts and avoiding trips.Resonance Reduction using Prohibited frequency ranges: The VFD shall be configurable to override up to 3 ranges of critical frequencies for the purpose of minimizing mechanical system resonances.Motor Pre-heat: The VFD shall automatically provide DC current for pre-heating of motor and VFD in stop state, activated by digital input or by heat sink temperature limit.Sleep Mode: The VFD shall automatically disable and enable the run request with the start command remaining on, based on frequency sleep limits.Fire Mode: The VFD shall have the ability to initiate an emergency mode which ignores all faults and commands to operate the motor in forward or reverse, according to one of the following:Preset frequency 1, 2 or 3Keypad frequencyFieldbus frequencyAI1, AI2 or AI1 + AI2PID1 ReferenceMotor Pot ReferenceTemperature-controlled Cooling Fans: The VFD shall automatically stop cooling fan when not needed. Additional cooling fan options shall also be available.BYPASS VARIABLE FREQUENCY DRIVE When specified in the drawings, the VFD shall be designed for use in applications to support uninterruptible power to the motor in case of any failure of the VFD. VFD supplier shall be able to provide Bypass in 3 different options, 2 Contactor Bypass, 3 Contactor Bypass and Automatic Bypass. For Bypass only, these features must to be included:Status lamps: VFD Run, Bypass RunMode selection switch: Bypass, Off, Test, and VFDFused disconnectFreeze /Fire /Smoke interlockIsolation of VFD from power with motor running.TEST position provides power to the VFD without powering the motor.Automatic Bypass shall allow any VFD fault to automatically send the VFD into bypass mode, dry contacts shall indicate when the bypass is in bypass mode, alerting the building management system. For Automatic Bypass, these features must to be included:VFD fault shall automatically send the bypass to BYPASS Mode.Contact closure sends bypass to BYPASS Mode.Dry contacts indicate when the bypass is in BYPASS Mode, alerting the Facility Management and Control System. EXECUTIONINSTALLATIONInstall system and materials shall be as detailed in the VFD manufacturer’ installation manual and as detailed on the project drawing set.Coordinate layout and installation of VFDs with other construction including conduit, piping, equipment, and adjacent surfaces. Maintain required workspace clearances and operational clearances, i.e. heat dissipation, for the equipment and its access doors and panels. Coordinate features, accessories and functions of each VFD ratings and characteristics of supply circuit, motor, required control sequence, and duty cycle of motor and load.All power wiring shall be installed by the electrical contractor.FIELD QUALITY CONTROLAcceptance Testing: Upon completion of physical installation, the contractor shall configure and start-up the VFD, if certified by the manufacturer to perform the start-up service. The contractor shall perform all necessary configuration, calibration and perform a test of all required operational checks to ensure that the VFD is functioning in full accordance with these specifications.Satisfactory: The contractor has performed successfully all the required testing to show performance compliance with the requirements of these specifications.DEMONSTRATION Operator Instruction and Training: The contractor shall provide on-site operator instruction to the owner's operating personnel. Operator instruction shall be done during normal working hours and shall be performed by a competent representative familiar with the VFD hardware, software and accessories.END OF SECTION ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download