Table of Contents. General Safety Information

Transcription

1 Document Vektor Laboratory Exhaust with Variable Geometry zzle (VGN) Technology Electrical Controls Information Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Table of Contents VFD Controller General Safety Information Only qualified personnel should install this unit. Personnel should have a clear understanding of these instructions and should be aware of general safety precautions. Improper installation can result in electric shock, possible injury due to coming in contact with moving parts, as well as other potential hazards. Other considerations may be required if high winds or seismic activity are present. If more information is needed, contact a licensed professional engineer before moving forward. 1. Follow all local electrical and safety codes, as well as the National Electrical Code (NEC), the National Fire Protection Agency (NFPA), where applicable. Follow the Canadian Electrical Code (CEC) in Canada. 2. Do not allow the power cable to kink or come in contact with oil, grease, hot surfaces, or chemicals. Replace cord immediately if damaged. 3. Verify the power source is compatible with the equipment. DANGER zzle Controller Always disconnect power before working on or near a unit. Lock and tag the disconnect switch or breaker to prevent accidental power up. CAUTION When servicing the unit, variable frequency drives (VFD) may be hot enough to cause pain or injury. Allow motor to cool before servicing. General Safety Information....1 Receiving, Handling and Storage Component Checklist - Electrical System Components....3 Wiring Installation....3 Fan Operation - Single Fan Set Point and Minimum Variables....4 Defined Modes....4 VGN Technology Control Flow Chart....5 Fan Operation - Multiple Fans, Staging Set Point and Minimum Variables....6 Defined Modes VGN Technology Control Flow Chart....8 Fan Operation - Multiple Fans, With Staging Set Point and Minimum Variables....9 Defined Modes VGN Technology Control Flow Chart Factory-Supplied Variable Frequency Drive System Diagram Wiring Diagram Communication BACnet and LonWorks Protocol. 14 Start-Up Procedure - Electrical Controls System Test and Balance for VGN zzle Velocity Adjustment Customer-Supplied Variable Frequency Drive System Diagram Wiring Diagram VGN zzle Controller Intro. and Tutorial Communication Start-Up Procedure - Electrical Controls System Test and Balance for VGN zzle Velocity Adjustment Troubleshooting Maintenance Electrical Replacement Parts Our Commitment VGN Technology 1

2 General Electrical Controls Information Receiving Upon receiving the product, check to ensure all items are accounted for by referencing the delivery receipt or packing list. Inspect each crate or carton for shipping damage before accepting delivery. Alert the carrier of any damage detected. The customer will make a notation of damage (or shortage of items) on the delivery receipt and all copies of the bill of lading which is countersigned by the delivering carrier. If damaged, immediately contact your Greenheck Representative. Any physical damage to the unit after acceptance is not the responsibility of Greenheck Fan Corporation. Component Checklist - Electrical Check off the following system components to verify all components are received. ABB Eclipse Variable Frequency Drive (VFD) with bypass mode and internal wiring kit. (VGN with factory-supplied VFD) VGN nozzle controller (VGN customer-supplied VFD) Transducer/terminal enclosure with Sure Aire pressure transducer and system terminals in NEMA 3R enclosure 24 volt VGN nozzle with modulating actuator 0/2-10 VDC with feedback Unpacking Verify that all required parts and the correct quantity of each item have been received. If any items are missing; report shortages to your local representative to arrange for obtaining missing parts. Sometimes it is not possible that all items for the unit be shipped together due to availability of transportation and truck space. Confirmation of shipment(s) must be limited to only items on the bill of lading. Handling Handle in such a manner as to keep from scratching or chipping the coating. Damaged finish may reduce ability of unit to resist corrosion. Storage Units are protected against damage during shipment. If the unit cannot be installed and operated immediately, precautions need to be taken to prevent deterioration of the unit during storage. The user assumes responsibility of the unit and accessories while in storage. The manufacturer will not be responsible for damage during storage. These suggestions are provided solely as a convenience to the user. INDOOR - The ideal environment for the storage of units and accessories is indoors, above grade, in a low humidity atmosphere which is sealed to prevent the entry of blowing dust, rain, or snow. Temperatures should be evenly maintained between 30 F (-1 C) and 110 F (43 C) (wide temperature swings may cause condensation and sweating of metal parts). All accessories must be stored indoors in a clean, dry atmosphere. Remove any accumulations of dirt, water, ice, or snow and wipe dry before moving to indoor storage. To avoid sweating of metal parts, allow cold parts to reach room temperature. To dry parts and packages use a portable electric heater to eliminate any moisture build up. Leave coverings loose to permit air circulation and to allow for periodic inspection. The unit should be stored at least 3½ in. (89 mm) off the floor on wooden blocks covered with moisture proof paper or polyethylene sheathing. Aisles between parts and along all walls should be provided to permit air circulation and space for inspection. Inspection and Maintenance during Storage While in storage, inspect equipment once per month. Keep a record of inspection and maintenance performed. If moisture or dirt accumulations are found on parts, the source should be located and eliminated. Removed From Storage As units are removed from storage to be installed in their final location, they should be protected and maintained in a similar fashion, until the equipment goes into operation. Prior to installing the unit and system components, inspect the unit assembly to make sure it is in working order. 1. Check all fasteners, and accessories for tightness. 2 VGN Technology

3 General Electrical Controls Information System Components System Components (supplied by Greenheck) Quantity Description 1 transducer with adjustable pressure range and VDC signal 1 VFD with bypass mode and integrated controller (VGN with factory-supplied VFD) 1 VGN nozzle controller. (VGN, customer-supplied VFD) 1 to 4 Actuator motor(s) (nozzle) 24 volts, modulating VDC signal with feedback Varies Actuator motor (bypass damper), if provided by manufacturer Varies Actuator motor (isolation damper) 24 volts, open/close. Quantity will be zero if isolation damper actuator is supplied by others or if gravity style isolation damper is used. System Components (customer-supplied) Quantity Description Varies Wiring, conduit, miscellaneous fittings 1 Building control system with required communication wiring and shielding Varies transducer for duct pressure Varies Actuator motor (bypass damper) if provided by others 1 Actuator motor (isolation damper), if provided by others. Quantity will be zero if gravity style isolation damper is used. Varies 1/4 inch tubing. Connection from Sure-Aire termination plate mounted on fan to mounting location of transducer/terminal enclosure. 1 Fan motor VFD. (VGN, customer-supplied VFD) Wiring Installation NOTE All field installation and wiring of electrical equipment must be done to meet NEC and local codes. NOTE Be sure to use appropriately sized wire for the full load amp draw. The following items are a list of requirements necessary to install the controls for the VGN Technology system. 1. Mount variable frequency drive in the desired location; indoors or outdoors. Maximum distance from fan is 100 feet (30.5 meters). 2. Mount transducer/terminal enclosure at fan or bypass air plenum (BAP). 3. Run main power wiring from building breaker panel to variable frequency drive. By others. 4. Run motor power wiring from service disconnect switch to variable frequency drive. Wire length to be less than 100 feet. By others. 5. Connect control wiring pigtail (by factory) from VGN nozzle actuator(s) to transducer/terminal enclosure. (See wiring diagram). Optional: Connect wiring from isolation damper actuator(s) to transducer/terminal enclosure. By others. 6. Run control wiring from transducer/terminal enclosure to variable frequency drive or nozzle controller terminal strip. Wire length to be less than 100 feet (See wiring diagram). 7a. Run communication cable from variable frequency drive to Building Management System (BMS). See VFD manual for type and maximum length. By others. (VGN with factory-supplied VFD). 7b. Run VGN nozzle controller system wiring from main control panel to Building Management System (BMS). By others. (Customer-supplied VFD). 8. Run nozzle actuator feedback control wire from transducer/terminal enclosure at the fan to BMS controls. 9. Install 1/4 inch pressure tubing (by others) from transducer/terminal enclosure to Sure-Aire connection plate on fan. By others. 10. Install BMS with duct pressure control system. By others. 11. For specific device installation reference the appropriate component cut sheet or IOM. Also reference the following system and wiring diagrams on pages 4 and 7 for more detail. VGN Technology 3

4 General Electrical Controls Information Fan Operation - Single Fan Set point and minimum variables 1. System will maintain a minimum of 3000 fpm velocity (factory default) at the outlet of the fan, based on the airflow monitoring station. Building Management System (BMS) to monitor nozzle actuator feedback and keep fan speed above the minimum required set point to maintain velocity. 2. Fan to run at BMS defined operation for speed and bypass mode. Mode reference will be determined by minimum fan speed and by minimum nozzle actuator feedback. a. If the BMS speed is equal to the minimum specific fan speed and nozzle feedback is minimum for a set time period (user-defined) the BMS will begin to modulate the bypass damper open to assist with pressure control. b. If the bypass damper is at full closed for a set time period, the BMS will increase fan speed and the fan control will increase the nozzle area as required to assist with pressure control. c. The PID sequence to be programmed at the BMS for bypass damper operation. The BMS to provide fan enable and VFD speed reference. Definition of typical operation modes: Mode #1: Unoccupied. Defined as no one inside the lab(s), all lab hoods are closed. 1. Fan will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan. BMS to monitor nozzle actuator feedback and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper as required if system speed is equal to the minimum fan speed and nozzle actuator is at minimum for a time period. 4. VFD speed, duct pressure control and bypass damper operation is provided by the BMS system. Mode #2: Occupied; no lab hoods being used. Defined as people entering the lab(s), no work being done at the hoods. 1. Fan will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan. BMS to monitor nozzle actuator feedback and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper as required if system speed is equal to the minimum fan speed and nozzle actuator is at minimum for a time period (user-defined). 4. VFD speed, duct pressure control and bypass damper operation is provided by the BMS system. Mode #3: Occupied; some or all lab hoods being used. Defined as people in the lab(s), lab hood sashes being used. A. Sashes opening in the lab 1. Fan will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan. Typical system response should be to increase fan speed and increase nozzle open area. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. VFD speed, duct pressure control and bypass damper operation is provided by the BMS system. B. Sashes closing in the lab 1. Fan will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan. Typical system response should be to decrease fan speed and decrease nozzle open area. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper as required if system speed is equal to the minimum fan speed and nozzle actuator is at minimum for a time period (userdefined). 4. VFD speed, duct pressure control and bypass damper operation is provided by the BMS system. Mode #4: Fault mode. Defined as safety mode; the system has an issue and needs to default to VFD bypass. 1. VFD failure detected, automatically or manually put into VFD bypass if available, by operator or BMS. 2. zzle area to increase proportional to fan airflow which will increase as fan speed is at maximum. 3. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 4. Duct pressure control will modulate bypass damper as required if system is in alarm mode. Duct pressure control is provided and programmed by the BMS system. 5. System manually to be reset and placed back in VFD auto mode. 4 VGN Technology

5 General Electrical Controls Information VGN Technology Control Flow Chart - Single Fan Positive Fault Negative Fault BMS Control Drive Fault Alarm Drive Fault Bypass Mode Max. VFD Monitor Time Static Valve Static = Setpoint Fan at Full Speed Above Setpoint (more positive) Static Value Below Setpoint (more negative) zzle Feedback at Minimum Min. VFD Monitor Time Required zzle Area VFD at Full Speed VFD at Minimum Speed Increase Fan Speed Send to BMS Controller Met? Positive Alarm Reset at Fault CLR Met? BMS Control Bypass Damper PID Reset by BMS Decrease Fan Speed Static Value Above Setpoint (more positive) Static = Setpoint Static Value Below Setpoint (more negative) Close Bypass Damper Bypass Feedback = Mimimum VDC Open Bypass Damper Bypass Feedback = Maximum VDC Damper Position Monitor Time Met? Met? Reset at Fault CLR Reset by BMS Negative Alarm Send to BMS Controller VGN Technology 5

6 General Electrical Controls Information Fan Operation - Multiple Fans, Staging Set point and minimum variables 1. System will maintain a minimum of 3000 fpm velocity (factory default) at the outlet of each fan, based on the airflow monitoring station. Building Management System (BMS) to monitor each fan nozzle actuator feedback and keep fan speed above the minimum required set point to maintain velocity. 2. Each fan to run at BMS defined operation for fan on or off, and event timing, as required per system airflow requirements. BMS is also required to control fan speed for all fans. Bypass damper mode reference will be determined by the following scenario listed: A. All fans in system running at minimum. Minimum flow condition. a. BMS will control fan speed and monitor nozzle feedback as required to maintain system set point. b. Decreased flow condition from minimum speed. When the speed is equal to the minimum specific fan speed and nozzle feedback is at minimum for a set time period (user-defined), the BMS will begin to modulate the bypass damper(s) open to assist with pressure control. Increased flow condition from minimum speed. If the bypass damper(s) are at full closed for a set time period (user-defined), the BMS will increase fan speed and the fan control will increase the nozzle area as required to assist with pressure control. c. The PID sequence to be programmed at the BMS for the bypass damper(s) operation. The BMS to provide fan enable and VFD speed reference. B. rmal operation. Fan operation normal system flow. a. Flow requirement for system within reach of fan operation. Fans operating will float together from minimum speed to maximum speed to keep set point. b. If any of the fans run in the surge area for a set time period, the BMS will need to add the bypass damper(s). c. The PID sequence to be programmed at the BMS for the bypass damper(s) operation. The BMS to provide fan enable and VFD speed reference. Definition of typical operation modes: Mode #1: Unoccupied. Defined as no one inside the lab(s), all lab hoods are closed. 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan(s). BMS to monitor nozzle actuator feedback for each fan and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #2: Occupied; no lab hoods being used. Defined as people entering the lab(s), no work being done at the hoods. 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan(s). BMS to monitor nozzle actuator feedback for each fan and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #3: Occupied; some or all lab hoods being used. Defined as people in the lab(s), lab hood sashes being used. A. Sashes opening in the lab 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity. Typical system response should be to increase fan(s) speed and increase nozzle open area. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. 6 VGN Technology

7 General Electrical Controls Information B. Sashes closing in the lab 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity. Typical system response should be to decrease fan(s) speed and decrease nozzle open area. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #4: Fault Mode. Defined as safety mode; the system has an issue and needs to default to VFD bypass. 1. VFD failure detected, automatically or manually put into VFD bypass if available by operator or BMS. 2. zzle area to increase proportional to fan airflow which will increase as fan speed is at maximum. 3. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 4. Duct pressure control will modulate bypass damper(s) as required if system is in alarm mode. Duct pressure control is provided and programmed by the BMS system. 5. System manually to be reset and placed back in VFD auto mode. VGN Technology 7

8 General Electrical Controls Information VGN Technology Control Flow Chart - Multiple Fans, Staging Positive Fault Negative Fault BMS Control Drive Fault Alarm Drive Fault Bypass Mode Fan Stall Monitor Time Max. VFD Monitor Time Fan(s) in Stall Mode Time Period Reset by BMS Static Value Above Setpoint (more positive) Static = Setpoint Static Value Below Setpoint (more negative) Increase Fan(s) Speed VFD(S) at Full Speed Met? All zzle Feedback at Minimum VFD(S) Minimum Speed Min. VFD Monitor Time Fan Full Speed Required zzle Area Send to BMS Controller Positive Alarm Reset at Fault Clr Decrease Fan(s) Speed Time Period Met? BMS Control Bypass Damper PID Reset by BMS Static Value Above Setpoint (more positive) Static = Setpoint Static Value Below Setpoint (more negative) Close Bypass Damper Bypass Feedback = Min. VDC Open Bypass Damper Bypass Feedback = Max. VDC Damper Position Monitor Time Met? Met? Reset at Fault Clr Reset by BMS Negative Alarm Send to BMS Controller 8 VGN Technology

9 General Electrical Controls Information Fan Operation - Multiple Fans, With Staging Set point and minimum variables 1. System will maintain a minimum of 3000 fpm velocity (factory default) at the outlet of each fan, based on the airflow monitoring station. Building Management System (BMS) to monitor each fan nozzle actuator feedback and keep fan speed above the minimum required set point to maintain velocity. 2. Each fan to run at BMS defined operation for fan staging, on or off, and event timing, as required per system airflow requirements. BMS is also required to control fan speed for all fans. Bypass damper mode reference will be determined by the following scenario listed: A. One fan in system running, all other fans off. Minimum flow condition. a. One fan in operation, BMS will control fan speed and monitor nozzle feedback as required to maintain system set point. b. Decreased flow condition from minimum speed. When the speed is equal to the minimum specific fan speed and nozzle feedback is at minimum for a set time period (user-defined), the BMS will begin to modulate the bypass damper(s) open to assist with pressure control. Increased flow condition from minimum speed. If the bypass damper(s) are at full closed for a set time period (user-defined), the BMS will increase fan speed and the fan control will increase the nozzle area as required to assist with pressure control. c. If one fan is at maximum speed for a set time period, another fan may be required to keep system set point. te section B for multiple fan operation. d. The PID sequence to be programmed at the BMS for the bypass damper(s) operation. The BMS to provide fan enable and VFD speed reference. B. Two or more fans running, normal operation. Fan operation normal system flow. a. Flow requirement for system within reach of fan operation. Fans operating will float together from minimum speed to maximum speed to keep set point. b. If all fans in operation are at maximum speed for a set time period (user-defined) and other fans are available, another fan can be added by the BMS as required. c. With additional fan added to the system, all fans in operation will decrease and match speed of new fan until set point is reached, then fans can float together between minimum to maximum speed. te section C if a dead band zone is created. d. When more than one fan is operating and all are at the minimum speed for a set time period and the pressure is still too negative, the BMS will need to subtract a fan. e. When more than one fan is in operation and any of the fans run in the surge area for a set time period, the BMS will need to subtract a fan or bypass damper(s) may need to be used. f. With the subtraction of a fan from the system, the BMS will need to increase speed of all remaining fans and they will float together until set point is reached. te section C if a dead band zone is created. g. The PID sequence to be programmed at the BMS for the bypass damper(s) operation. The BMS to provide fan enable and VFD speed reference. C. Dead band in system. Flow between fans cycle on/off. Flow requirement for system out of reach causing undesirable fan cycling on and off. If the fans in the system running at full speed is not enough air and adding an additional fan and running all fans at minimum is too much air, then the bypass damper mode may be necessary to settle these dead band zones. a. The BMS notices and counts cycling of fans to determine dead band zone. If a dead band is determined, the BMS will begin to modulate the bypass damper(s) open to assist with pressure control. b. If the bypass damper(s) are at full closed for a set time period, the BMS will increase fan speed and the fan control will increase the nozzle area as required to assist with pressure control. c. The PID sequence to be programmed at the BMS for the bypass damper(s) operation. The BMS to provide fan enable and VFD speed reference. VGN Technology 9

10 General Electrical Controls Information Fan Operation - Multiple Fans, With Staging - continued Definition of typical operation modes: Mode #1: Unoccupied. Defined as no one inside the lab(s), all lab hoods are closed. 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan(s). BMS to monitor nozzle actuator feedback for each fan and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #2: Occupied; no lab hoods being used. Defined as people entering the lab(s), no work being done at the hoods. 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity out the fan(s). BMS to monitor nozzle actuator feedback for each fan and keep fan speed above the minimum required to maintain velocity. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #3: Occupied; some or all lab hoods being used. Defined as people in the lab(s), lab hood sashes being used. A. Sashes opening in the lab 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity. Typical system response should be to increase fan speed and increase nozzle open area. Additional fans may be added as necessary. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. B. Sashes closing in the lab 1. Fan(s) will operate at BMS required speed and nozzle will modulate as necessary to achieve the required velocity. Typical system response should be to decrease fan speed and decrease nozzle open area. Removal of fans may be required as necessary. 2. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 3. Duct pressure control, by the BMS, will modulate bypass damper(s) as required. te: Follow bypass damper(s) operation depending on number of fans running. 4. VFD speed, duct pressure control and the bypass damper(s) operation is provided by the BMS system. Mode #4: Fault Mode. Defined as safety mode; the system has an issue and needs to default to VFD bypass. 1. VFD failure detected, automatically or manually put into VFD bypass if available by operator or BMS. 2. zzle area to increase proportional to fan airflow which will increase as fan speed is at maximum. 3. Sure-Aire will measure airflow of the fan. VFD or the nozzle controller for each fan will report this value to BMS. 4. Duct pressure control will modulate bypass damper(s) as required if system is in alarm mode. Duct pressure control is provided and programmed by the BMS system. 5. System manually to be reset and placed back in VFD auto mode. 10 VGN Technology

11 General Electrical Controls Information VGN Technology Control Flow Chart - Multiple Fans, With Staging Positive Fault Negative Fault BMS Control Drive Fault Alarm Deadband Range Fan On/Off Cycling Drive Fault Bypass Mode Fan Stall Monitor Time Max. VFD Monitor Time Fan(s) in Stall Mode Met? Reset by BMS Static Value Remove a fan Static = Setpoint Met Reset by BMS Above Setpoint (more positive) Static Value Below Setpoint (more negative) Fan Full Speed VFD(S) Full Speed Fan(s) available to add Met? Reset by BMS All zzle Feedback at Minimum Required zzle Area Increase Fan(s) Speed Send to BMS Controller Met? Positive Alarm Reset at Fault Clr Add a Fan Decrease Fan(s) Speed VFD(S) Minimum Speed Fan(s) Running = 1 Met? BMS Control Bypass Damper PID Met? Reset by BMS Reset by BMS Static Value Above Setpoint (more positive) Static = Setpoint Static Value Below Setpoint (more negative) Close Bypass Damper Open Bypass Damper Damper Position Monitor Time Bypass Feedback = Min. VDC Bypass Feedback = Max. VDC Met? Met? Reset at Fault Clr Reset by BMS Negative Alarm Send to BMS Controller VGN Technology 11

12 Electrical Controls Information for Factory-Supplied Variable Frequency Drive System Diagram ALL GFC PROVIDED CONTROL DEVICES ARE 24V POWER VEKTOR ROOF EXHAUST FAN STATIC PRESSURE TRANSDUCER AND TERMINAL BOX SHIPPED LOOSE (INSTALLED BY OTHERS) 1/4 INCH PRESSURE TUBING ISOLATION DAMPER WITH OPEN/CLOSE ACTUATOR BYPASS DAMPER ACTUATOR (MODULATING) (CONTROLLED BY BMS) EXHAUST DUCT VGN NOZZLE WITH MODULATING ACTUATOR(S) VFD IN A NEMA 3R UL LISTED ENCLOSURE WITH BYPASS AND INTEGRATED CONTROLLER (SHIPPED LOOSE; FIELD MOUNTED) COMMUNICATION WIRING SERVICE DISCONNECT SWITCH DRIVE BMS COMMUNICATIONS - BACNET (STANDARD) - ANALOG SIGNAL(S) (STANDARD) - LONWORKS (OPTIONAL) TO BMS CONTROL SYSTEM POWER WIRING MOTOR WIRING CONTROL WIRING ROOF LINE NOZZLE FEEDBACK DUCT PRESSURE CONTROL STATIC PRESSURE TRANSDUCER BOX EQUIPMENT BY GFC WIRING BY GFC EQUIPMENT BY OTHERS WIRING BY OTHERS 1/4 INCH PRESSURE TUBING STATIC PRESSURE PROBE NOTES: - All wiring in rigid metal conduit or flexible metal conduit and liquid tight. - All tubing and conduit to be UV resistant for outdoor use. 12 VGN Technology

13 Electrical Controls Information for Factory-Supplied Variable Frequency Drive Wiring Diagram ABB ECLIPSE DRIVE WITH VGN TECHNOLOGY ABB BYPASS MODULE CBL#3 (ORANGE) 1 DRIVE DISCONNECT LOAD SIDE GND CBL#3 (ORANGE) 5 CBL#3 (BLACK) CBL#3 (RED) 14 DIGITAL RELAY OUT CLOSE WHEN FAN ON 16 SET DIP SWITCHES SHIELD ABB DRIVE MODULE U I 1 ANALOG INPUT 2 SIGNAL SWITCH SGND T1 OUTGOING POWER - TO FAN MOTOR CBL#1 (BLACK) CBL#1 (WHITE) CBL#2 (WHITE) CBL#2 (BLACK) AI1 SURE AIRE AGND AO1 VARIABLE N. T2 T3 GND VGN PCB TB1 zzle VDC Sure-Aire VCD Isolation Power Manual Switch 1 Manual Switch Volts +24 Volts +24 Volts Common Common Common FUSE COMM BMS SYSTEM SUPPLIED BY OTHERS R1 BMS COMMUNICATIONS (STD) - BACNET (STANDARD) - LONWORKS (OPTIONAL) TB2 Power Supply + Common AI1 AGND AO1 POWER SUPPLY REQUIRED WIRING: -DIGITAL ON/OFF (THRU COMM) -SPEED REFERENCE (THRU COMM) -NOZZLE FEEDBACK (HARDWIRE) -ALARM (THRU COMM) -FAN FLOW (THRU COMM) TRANSDUCER ACTUATOR DUCT PRESSURE SIGNAL COMPONENT BY OTHERS 5 BYPASS DAMPER COMPONENT BY OTHERS TRANSDUCER/TERMINAL ENCLOSURE - AT THE FAN NOZZLE POSITION FEEDBACK TO BMS TRANSDUCER 2 + SURE-AIRE SIGNAL DC +24DC +24DC COM COM COM SURAIR ISOPWR NOZVDC NOZFB1 NOZFB2 GND GND NOZZLE ACTUATOR FEEDBACK RECOMMEND 1 PER SHAFT MAY BE MULTIPLE ACTUATORS PER NOZZLE BLADE SHAFT FAN PRESSURE (LOW&HIGH) TO SURE-AIRE CONNECTION PLATE ON FAN - + ACTUATOR 1 ISOLATION DAMPER FACTORY WIRING FIELD WIRING ACTUATOR 2 NOZZLE ACTUATOR 1 ACTUATOR 3,4,5 ADDITIONAL NOZZLE ACTUATORS QTY. DEPENDENT ON UNIT SIZE VGN Technology 13

14 Electrical Controls Information for Factory-Supplied Variable Frequency Drive Communication The VGN Technology variable frequency drive (VFD) has an embedded fieldbus as standard and optional fieldbus adapter(s) that can be purchased. Greenheck offers and supports BACnet MS/TP as our standard communication protocol and also LonWorks as an optional communication. The VFD does have other languages available, but are not supported by Greenheck, however, it may be supported by the VFD manufacturer. Please contact the VFD factory support if you have alternate communication requirements. The following information is a guide to summarize the set up of the VFD to a BMS system. The guide is a general overview and it is suggested the controls contractor and BMS group reference the VFD manual for detailed installation and setup of the VFD communications. It is also suggested to follow the manufacturers recommendations for communication cable type and maximum lead length. The recommended cable is different for each protocol. The following is only a general checklist and does not specify exact parameters. NOTE All parameters are to be modified at the bypass keypad, which is the lower keypad on the enclosure. BACnet MS/TP Protocol (standard) Connect the communication wiring from the appropriate VFD terminations to the BMS control system. Reference the VFD manual for terminal location and approved wiring type. Apply power to the VFD. Enable BACnet MS/TP as the desired Protocol. Place the BACnet MS/TP channel in the reset mode, this is required to set up all the remaining parameters. Define the system baud rate being used. Define the Device object instance. Define a unique object ID. Confirm the communication. Configure the device name. Take the VFD out of reset mode. Cycle power to the VFD to save all changes. For a list of BMS points available for BACnet MS/TP communication, see the manufacturer s point listing chart(s) in the manual. LonWorks Protocol (optional) The LonWorks communication requires an optional plug-in module that is added to the bypass module of the VFD. The module needs to be specified at time of ordering of the fan and control system. It is also suggested to follow the manufacturers recommendations for communication cable type and maximum lead length for LonWorks. The recommended cable is different for each protocol. Verify mounting of plug-in module that nothing was loosened in shipping. Connect the communication wiring from the appropriate VFD terminations to the BMS control system. Reference the VFD manual for terminal location and approved wiring type. Apply power to the VFD. Activate the field buss adaptor port. Verify the HOST LED is lit to a solid green color. Program the system enable control. Program the bypass fault reset if required to reset VFD from BMS. Program the system VFD speed control. Program the VFD fault reset if required to reset VFD from BMS. Cycle power to the VFD to save all changes. For a list of BMS points available for LonWorks communication, see the manufacturer s point listing chart(s) in the manual. 14 VGN Technology

15 Electrical Controls Information for Factory-Supplied Variable Frequency Drive Start-Up Procedure - Electrical Controls The following start-up procedure is to be completed in order to verify that the fan is in working order. It does not cover the details for test and balance, VFD programming, commissioning, or system troubleshooting which is covered in other parts of the Installation, Operation and Maintenance Manual. Mechanical Component System Verification For detailed descriptions to complete these operations, see equipment Installation, Operation and Maintenance Manual (IOM). Fan assembly and installation completed. Check all fasteners for tightness, as they may loosen during shipping. All pressure tubing lines installed as required. All control enclosures and devices mounted in the appropriate locations. Verify fan wheel alignment. Electrical Control Components System Verification For detailed descriptions to complete these operations, see equipment Installation, Operation and Maintenance Manual, National Electrical Code and local electrical code. Service feeder(s) to all controls completed. Control wiring to all devices completed. All field electrical connections tested and torqued. Communication wiring to Building Management System completed. Electrical System Start-Up for VGN Use appropriate electrical safety gear as required. Make sure disconnect switch at the VFD is in the OFF position. Verify each power phase at the VFD disconnect is not shorted to ground using a voltmeter. Turn on the breaker that feeds the fan VFD. Verify the voltage is correct from phase to phase using a voltmeter at the VFD disconnect. Apply power to the VFD by turning on the disconnect switch that is interlocked to the door. Verify that the VFD is in the OFF mode at the VFD keypad. Check control voltage at drive terminals to verify the control voltage is correct. Turn on the service disconnect switch at the fan. Open all lab hoods inside the building and verify duct control is operational. te the fan speed at the VFD keypad; it should be at full speed. Increase fan speed if required using the VFD keypad up and down arrows. Press the HAND button at the VFD keypad. The isolation damper will start to open. The fan speed will start to accelerate to full speed. As the fan speed increases the nozzle will open to maintain constant velocity. Verify fan wheel rotation. Verify it matches labeled direction and IOM. If the fan wheel is rotating in the wrong direction, turn off fan, disconnect power, and lockout main feeder. Reverse two of the motor wiring leads to change wheel direction. Reapply power and press HAND mode once again at the VFD keypad. Verify fan wheel rotation, verify it matches labeled direction and fan Installation, Operation and Maintenance Manual. Use the up and down arrows at VFD keypad, change the speed to verify nozzle reaction. - As speed increases the nozzle will open. - As speed decreases the nozzle will close. VGN Technology 15

16 Electrical Controls Information for Factory-Supplied Variable Frequency Drive System Test and Balance for VGN The VGN Technology control system needs to be set up at a desired fixed fan speed and nozzle area. If the following is not done, it will be difficult to do the test and balance of the building as the fan will continually be adjusting during changes in the building lab airflow. The following steps listed are necessary to create a stable fan system for the test and balance setup of a building. The fan speed can be set at a fixed speed by two different options: Option #1 is by selecting the bypass mode; this will put the fan at full speed. Option #2 is put the VFD in HAND mode; this will give you speed adjustment from minimum speed to full speed. The nozzle area can by set to a fixed position by doing the following. 1. Minimum zzle Actuator Signal is adjusted by the VFD parameter #1504 at the VFD keypad. te the factory default setting from Greenheck prior to adjusting. Use the following table to record for your reference. 2. Maximum zzle Actuator Signal is adjusted by the VFD parameter #1505 at the VFD keypad. te the factory default setting from Greenheck prior to adjusting. Use the following table to record for your reference. 3. To create a fixed nozzle location, the Test and Balance personnel can set the parameter #1504 and #1505 to the same value within Greenheck range and it will keep the nozzle fixed to a specific location. For example, if the maximum value is 15 ma, do not go over that maximum value. By setting the value to the same number, the outlet velocity and airflow of the fan can be set to a desired reading for balancing the building. Parameter & Description Minimum zzle Actuator Signal Parameter 1504 Maximum zzle Actuator Signal Parameter 1505 Value (Set at Factory) New User Set Point After testing is completed, VFD parameters need to be set back to Greenheck factory default numbers for the nozzle to modulate. The fan can be put back into the desired mode (off, hand, or auto). For more information on the keypad details and how to access the following parameters, see the VFD manufacturer user s guide. zzle Velocity Adjustment The VGN control system is shipped from the factory to output an average minimum 3000 fpm nozzle velocity. The VFD for the system will have a given cfm range that is programmed into the parameter set. The following parameters can be set as required if the desired velocity is required to be higher than the factory default setting. The following steps can be done to adjust the nozzle velocity range of the fan. Setting the minimum range parameter of the system: 1. Minimum air volume range is adjusted by the VFD parameter #1502 at the VFD keypad. The factory default setting from Greenheck is specific to every fan; note the parameter setting prior to changing the value and record below for future reference. 2. To change the minimum value, follow the following guidelines. Example: 3,500 fpm (desired) New VFD Reading = Current VFD Reading x (3,500/3000) Setting the minimum speed parameter of the system: 1. Minimum fan speed is adjusted by the VFD parameter #2007 at the VFD keypad. te the parameter setting prior to changing the value and record below for future reference. 2. The minimum fan speed may be increase from the factory value if a higher nozzle velocity is required. It is not required to increase the minimum fan speed but once the nozzle is at the minimum area the velocity may potentially go lower than the desired velocity. It is suggested by Greenheck however that the value not be lower then the factory preset minimum value set at time of shipment. Adjust Fan RPM for velocity increase: 1. The fan may also need the pulley changed to adjust the fan RPM. It is suggested to consult the factory to size accordingly. After completing the velocity changes, the fan can be put into the desired mode (off, hand, or auto). Parameter & Description Minimum Range Value Parameter 1502 Minimum Speed Value Parameter 2007 Value (Set at Factory) New User Set Point For more information on the keypad details and how to access the following parameters, see the VFD manufacture user s guide. 16 VGN Technology

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18 Electrical Controls Information for Customer-Supplied Variable Frequency Drive System Diagram ALL GFC PROVIDED CONTROL DEVICES ARE 24V POWER VEKTOR ROOF EXHAUST FAN STATIC PRESSURE TRANSDUCER AND TERMINAL BOX SHIPPED LOOSE (INSTALLED BY OTHERS) 1/4 INCH PRESSURE TUBING ISOLATION DAMPER WITH OPEN/CLOSE ACTUATOR BYPASS DAMPER ACTUATOR (MODULATING) (CONTROLLER BY BMS) EXHAUST DUCT VGN NOZZLE WITH MODULATING ACTUATOR(S) NOZZLE CONTROLLER ANALOG SIGNAL(S) VFD COMMUNICATION TO BMS CONTROL SERVICE DISCONNECT SWITCH VFD PROVIDED AND PROGRAMMED BY OTHERS CONTROLLER POWER WIRING VFD POWER WIRING FAN RUNNING STATUS CONTACT MOTOR WIRING ISOLATION DAMPER WIRING TO VFD BY OTHERS ROOF LINE NOZZLE FEEDBACK DUCT PRESSURE CONTROL STATIC PRESSURE TRANSDUCER BOX EQUIPMENT BY GFC WIRING BY GFC EQUIPMENT BY OTHERS WIRING BY OTHERS 1/4 INCH PRESSURE TUBING STATIC PRESSURE PROBE NOTES: - All wiring in rigid metal conduit or flexible metal conduit and liquid tight. - All tubing and conduit to be UV resistant for outdoor use. 18 VGN Technology

19 Electrical Controls Information for Customer-Supplied Variable Frequency Drive Wiring Diagram NOZZLE CONTROLLER ID2 GND Y2 Y4 GND TRANSFORMERS NOZZLE CONTROLLER G GO B1 GND C1 NO1 L1 L1 N NGND GND FAN RUN CONTACT(S) FROM VFD BY OTHERS BMS SYSTEM SUPPLIED BY OTHERS BMS COMMUNICATIONS (STD) - ANALOG SIGNAL(S) - ON/OFF CONTACT(S) +24V +24V +24V +24V +24V COM COM COM COM COM SURAIR FNRUN NOZVDC CFM1 ALM GND GND GND GND FNRUN ALM CFM1 COM MEASURE 0-10VDC +24V NOZFB1 NOZFB2 ISOPWR REQUIRED WIRING: -DIGITAL ON/OFF (HARDWIRE) -NOZZLE FEEDBACK (HARDWIRE) -ALARM (HARDWIRE) -FAN FLOW (HARDWIRE) -ISOLATION DAMPER CONTACT (HARDWIRE) MEASURE 2-10VDC TRANSDUCER TERMINAL ENCLOSURE - AT THE FAN INCOMING POWER 120/1PH. 20 AMP CIRCUIT TRANSDUCER DUCT PRESSURE SIGNAL COMPONENT BY OTHERS - ACTUATOR BYPASS DAMPER COMPONENT BY OTHERS ISOLATION DAMPER TRANSDUCER V +24V +24V COM COM COM SURAIR ISOPWR NOZVDC NOZFB1 NOZFB2 GND GND NOZZLE POSITION FEEDBACK TO BMS FAN FLOW (LOW&HIGH) TO FAN CONNECTION PLATE - + ACTUATOR 1 ISOLATION DAMPER ACTUATOR 2 NOZZLE (REQUIRED) FACTORY WIRING FIELD WIRING ACTUATOR 3,4,5 ADDITIONAL NOZZLE ACTUATORS QTY. DEPENDENT ON UNIT SIZE VGN Technology 19

20 Electrical Controls Information for Customer-Supplied Variable Frequency Drive VGN zzle Controller Controller Introduction and Tutorial The VGN zzle Controller is located in the main control panel. The controller has factory set points that can be modified to configure the system for job specific functions. The controller introduction and directions for the setup screens are shown in this section. The face of the controller has six buttons, allowing the user to view unit conditions and alter parameters. The controller is pre-programmed with easy to use menus. Keypad Navigation Escape Up Down Allows the user to exit the current menu, jumping to the Main Menu. The arrow buttons allow the user to scroll through different screens and adjust parameters.! Alarm Button will blink red, indicating an alarm condition. Press to review current alarms. To review previous alarms, access the DATA LOGGER through the main menu. Enter A. In screens with adjustable parameters, pressing the Enter button moves the cursor from the upper left corner of the screen to the parameter. The arrow buttons can then be used to adjust the parameter. B. To move to the next parameter on the same screen, press the Enter button. C. To save the change, press the Enter button until the cursor moves back to the upper left corner of the screen. Program Pressing the Program button allows the user to enter the Main Program Menu. Example of Parameter Adjustment GREENHECK VGN SYSTEM SETTINGS H FAN SIZE 36 FLOW MEASURE INLET UNITS ENGLISH ELEVATION OUTLET VELOCITY 3000 The cursor always begins in the upper left corner of the display and will be blinking. Press the button to move the cursor down for parameter adjustment. GREENHECK VGN SYSTEM SETTINGS H FAN SIZE 36 FLOW MEASURE INLET UNITS ENGLISH ELEVATION OUTLET VELOCITY 3000 Once the cursor has reached the desired parameter, press the adjust the value. buttons to GREENHECK VGN SYSTEM SETTINGS H FAN SIZE 36 FLOW MEASURE INLET UNITS ENGLISH ELEVATION OUTLET VELOCITY 3000 When satisfied with the adjustment, press the button to save the parameter. When finished, make certain the cursor is in the upper left corner. If the cursor is not in the upper left corner, the changes will not be saved. The cursor must be in the upper left corner to enable screen advancement. 20 VGN Technology

21 Electrical Controls Information for Customer-Supplied Variable Frequency Drive Controller Menu Screens The nozzle controller consists of five menu screens to operate the VGN system. The following information describes the menu screens in detail. GREENHECK VGN AIR FLOW FLOW xxxxx FLOW VDC X.X VDC LOW SCALE 0 TO XXXXX NOZZLE OPEN XXX % The following value ranges are specific to the Air Flow menu screen. Flow Active reading calculated by the Sure-Aire system. English = CFM; Metric = m 3 /hr Flow VDC Scaled voltage output specific to the flow scale. 0 VDC = no flow; 10 VDC = maximum flow Flow Scale Flow range specific to VGN fan. English = CFM; Metric = m 3 /hr. zzle Open Active reading stating the % open of the VGN nozzle. 0% = nozzle closed; 100% = nozzle open The values in this menu are not user-editable and are locked by the controller program. GREENHECK VGN SYSTEM STATUS FAN STATUS XXX VELOCITY XXX FAN FLOW XXX ALARM CONTACT XXX GREENHECK VGN SYSTEM SETTINGS H FAN SIZE XX FLOW MEASURE XXXXX UNITS XXXXXX ELEVATION XXXXX OUTLET VELOCITY XXXX The following value ranges are specific to the System Status menu screen. Fan Status Shows the status of the fan. On or Off Velocity Determines if outlet velocity is acceptable per system setting. OK or Low Fan Flow Determines if fan flow is acceptable per required nozzle area and velocity. OK or Low Alarm Contact Alarm and contact closure for the following. Alarm list: a. Velocity is below the required preset system value. b. Fan is shown as running but no flow is being created. The values in this menu are not user-editable and are locked by the controller program. The following value ranges are specific to the System Settings menu screen. H / M / C Fan Size Factory set for system fan size. Selects the correct fan variables for the control. Flow Measure Sets the location of the airflow monitor location. Inlet or outlet condition Units Sets up the control screen variables for the system. English or Metric Elevation Location above sea level the system is located to set air density. 0 to 10,000 feet Outlet Velocity Required velocity at the VGN zzle outlet. 3,000 to 4,000 FPM; 912 to 1216 MPM. All the values in this menu can be changed by the user. te factory settings prior to making adjustments. GREENHECK VGN TEST AND BALANCE T&B BALANCING NOZZLE % OPEN FLOW CORRECT XXX XXX XXXX The following value ranges are specific to the Test and Balance menu screen. T&B Balancing Used to start the balancing process of the system. or. zzle % Open Gives Test and Balance personnel complete control of nozzle regardless of fan flow. 0% = closed; 100% = open Flow Correct K factor for Test and Balance personnel to measure and adjust airflow. te that K value is not CFM, but subtracts or adds to the flow calculation within the program to All the values in this menu can be changed by the user. te factory settings prior to making adjustments. VGN Technology 21