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Model 8682/8682-BAC SureFlow Adaptive Offset Controller

1. Network Modbus Communications 89 8682 BACnet MS TP Protocol Implementation Conformance Statement Date July 11 2007 Vendor Name TSI Inc Product Name SureFlow Adaptive Offset Controller Product Model Number 8682 BAC Applications Software Version 1 0 Firmware Revision 1 0 BACnet Protocol Revision 2 Product Description TSI SureFlow Room Pressure Controls are designed to maintain more exhaust from a laboratory than is supplied to it This negative air balance helps ensure that chemical vapors cannot diffuse outside the laboratory The SureFlow Model 8682 also controls the temperature of the laboratory space by modulating reheat and the supply air volume Optionally a room pressure sensor can be connected to the SureFlow Model 8682 controller to correct long term changes in the building dynamics This model controller is capable of acting as a stand alone device or as part of a building automation system via BACnet MS TP protocol BACnet Standardized Device Profile Annex L O BACnet Operator Workstation B OWS O BACnet Building Controller B BC O BACnet Advanced Application Controller B AAC M BACnet Application Specific Controller B ASC O BACnet Smart Sensor B SS O BACnet Smart Actuator B SA List all BACnet Interoperability Building Blocks Supported Annex K DS RP B DM DDB B DS WP B DM DOB B DS RPM B DM DCC B Segmentation Capability Segmented requests not supported Segmented responses
2. OM Hed DIAGNOSTICS MENU continued REHEAT VALVE CONTROL OUTPUT SENSOR CONTROL TEMP SENSOR COMMUNICATION STAT TEMPERATURE INPUT UNOCCUPY SET INPUT TEMP INPUT OCCUPANT SWT The CONTROL TEMP item manually changes the control output signal to the reheat valve When this item is entered a number between 0 OPEN and 100 OPEN will be shown on the display indicating the control output value Pressing the A V keys change the count on the display Pressing the A key increases the displayed value while pressing the W key decreases the displayed value The reheat valve position should change modulate as the number changes Depending on the actuator 0 OPEN or 100 OPEN is full open on valve Conversely 100 OPEN or 0 OPEN will be full closed A value of 50 OPEN should position the damper approximately 1 2 open The SENSOR STAT item verifies that the RS 485 communications between the pressure sensor and DIM is working correctly Pressure sensor error messages do not display on DIM except when SENSOR STAT item is selected This item displays NORMAL if communications are established correctly If problems exist one of four error messages will display COMM ERROR DIM cannot communicate with sensor Check all wiring and pressure sensor address Address must be 1 SENS ERROR Problem with sensor bridge Physical damage to pressure sensor or sensor circuitry Unit is not field repairable Send to TSI for repair CAL
3. If TEMP TR is set to 3 0 F and the TEMP SETP is set to 70 0 F the reheat valve will be fully open when the space temperature is 67 F Similarly the reheat valve will be fully closed when the space temperature is 73 0 F OM Hed CONTROL MENU continued TEMPERATURE TEMP TI INTEGRAL TIME END OF MENU 0 to 10 000 seconds 2400 seconds The TEMP TI item is used to read and change the temperature control integral time When this item is entered a value for the throttling range is indicated on the display in seconds The integral time is set based on the lag time of the temperature control process The purpose of integral control is to eliminate the offset associated with proportional control A longer integral time will result in a more stable but slower control system A shorter integral time will provide quicker reaction to changes in temperature but may result in an unstable system The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu uolodeS jeoIUyde ce SYSTEM FLOW MENU TOTAL SUPPLY AIR FLOW TOTAL EXHAUST AIR FLOW CONTROL OFFSET VALUE SUPPLY FLOW SET POINT CALCULATED TOT SUP FLOW TOT EXH FLOW OFFSET VALUE SUP SET POINT The TOT SUP FLOW menu item displays the current total measured supply flow into the laboratory This item calculates
4. The SENSOR SPAN item is used to match or calibrate the TSI pressure sensor velocity sensors to the average room pressure velocity as measured by a portable air velocity meter A sensor zero should be established prior to adjusting the sensor span if the sensor was cleaned with a liquid cleaner see Calibration section following menu item listing The ELEVATION item is used to enter the elevation of the building above sea level This item has a range of 0 10 000 feet in 1 000 foot increments The pressure value needs to be corrected due to changes in air density at different elevations The TEMP CAL item is used to match or calibrate the SureFlow controller temperature sensor to the actual space temperature as measured by a portable reference meter NONE Unit is factory calibrated No initial adjustment should be necessary O to 10 000 feet above sea level NONE uoldeS eoIuUYyde Ge CALIBRATION MENU continued CONTROL MENU SPEED END OF MENU SPEED The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu The SPEED item is used to select the control output speed supply and general exhaust When this item is selected a bar graph is shown on the display There are 10 bars each one representing 10 of speed Starting from the right side sign 10 bars displayed in
5. 0 001 H2O Temperature set point 72 F Value supplied by laboratory designer Room Pressure Control System 1 Model 8682 Adaptive Offset Control System mounted in the laboratory 2 A through the wall pressure sensor mounted between the corridor referenced space and laboratory controlled space 3 Damper pressure dependent VAV box or valve with actuator assembly mounted in supply air duct s 4 Damper pressure dependent VAV box or valve with actuator assembly mounted in exhaust air duct 5 Flow station mounted in supply air duct Required for non venturi valve applications only 6 Flow station mounted in general exhaust air duct Required for non venturi valve applications only 58 Part Two 7 Flow stations mounted in fume hood exhaust duct Required for non venturi valve applications only Temperature Control System 1 Temperature Sensor 1000 Platinum RTD mounted in the laboratory 2 Reheat coil mounted in supply air duct s Fume Hood Control System 1 Independent SureFlow VAV Face Velocity Control system Based on the preceding information and knowing duct sizes the following required menu items can be programmed MENU ITEM ITEM VALUE DESCRIPTION HD1 DCT AREA 0 78 ft 12 in round Fume hood 1 duct area HD2 DCT AREA 0 78 ft 12 in round Fume hood 2 duct area HD3 DCT AREA 0 78 ft 12 in round Fume hood 3 duct area HD4 DCT AREA 0 78 ft 12 in round Fume hood 4 du
6. December 2012 All rights reserved Part number 1980483 Revision F LIMITATION OF WARRANTY AND LIABILITY Seller warrants the goods sold hereunder under normal use and service as described in the operator s manual shall be free from defects in workmanship and material for 24 months or if less the length of time specified in the operator s manual from the date of shipment to the customer This warranty period is inclusive of any statutory warranty This limited warranty is subject to the following exclusions and exceptions a Hot wire or hot film sensors used with research anemometers and certain other components when indicated in specifications are warranted for 90 days from the date of shipment b Pumps are warranted for hours of operation as set forth in product or operator s manuals c Parts repaired or replaced as a result of repair services are warranted to be free from defects in workmanship and material under normal use for 90 days from the date of shipment d Seller does not provide any warranty on finished goods manufactured by others or on any fuses batteries or other consumable materials Only the original manufacturer s warranty applies e Unless specifically authorized in a separate writing by Seller Seller makes no warranty with respect to and shall have no liability in connection with goods which are incorporated into other products or equipment or which are modified by any person other than Seller The foreg
7. insert number of flow station you are performing a zero on 2 Point Flow Calibration Supply and General Exhaust Flow Calibration Enter menu that corresponds to flow calibration Supply Flow Exhaust Flow Select SP LOW SETP to enter a supply flow low calibration set point or Select EX LOW SETP to enter a general exhaust flow low calibration set point Technical Section 65 The DIM will display a value between 0 OPEN and 100 OPEN Press the A or V keys to adjust the value displayed and the damper position Using a voltmeter read the input voltage from the appropriate pressure transducer When the voltmeter reading is approximately 20 of the full flow reading 100 OPEN press the SELECT key to save the data then Select SP HIGH SETP to enter a supply flow low calibration set point or Select EX HIGH SETP to enter a general exhaust flow low calibration set point The DIM will display a value between 0 OPEN and 100 OPEN Press the A or VW keys to adjust the value displayed and the damper position Using a voltmeter read the input voltage from the appropriate pressure transducer When the voltmeter reading is approximately 80 of the full flow reading 100 OPEN press the SELECT key to save the data then Select SP LOW CAL to enter a supply flow low calibration value or Select EX LOW CAL to enter a general exhaust flow low calibration value The DIM will display two airflow values Press the A or W keys to adjust the
8. keys are used to scroll through the menus menu items and through the range of item values that can be selected Depending on the menu item selected the value may be numerical specific property on off or a bar graph NOTE When programming a menu item continuously pressing the arrow key will scroll through the values faster than if arrow key is pressed and released Keystroke Procedure The keystroke operation is consistent for all menus The sequence of keystrokes is the same regardless of the menu item being changed 1 2 8 9 Press the MENU key to access the main menu Use the A F keys to scroll through the menu choices The blinking cursor needs to be on the first letter of the menu you want to access Press the SELECT key to access chosen menu The menu selected is now displayed on line one and the first menu item is displayed on line 2 Use the A F keys to scroll through the menu items Scroll through the menu items until desired item is displayed NOTE If Enter Code is flashing the access code must be entered before you can enter the menu Access code is found in Appendix D Appendix D may have been removed from the manual for security reasons Press the SELECT key to access chosen item The top line of display shows menu item selected while the second line shows current item value Use the A V keys to change item value Save the new value by pressing the SELECT key pressing the MENU key will exit
9. value displayed on the right to match the actual measured airflow which is obtained with a duct traverse measurement or with a capture hood measurement Press SELECT key to save data then Select SP HIGH CAL to enter a supply flow high calibration value or Select EX HIGH CAL to enter a general exhaust flow high calibration value The DIM will display two airflow values Press the A or W keys to adjust the value displayed on the right to match the actual measured airflow which is obtained with a duct traverse measurement or with a capture hood measurement Press SELECT key to save data Hood Flow Calibration 66 Enter HOOD CAL menu Raise the fume hood sash of a previously calibrated fume hood from fully closed to an approximate height of 12 Select the corresponding HD LOW CAL menu item The DIM will display two airflow values Press the A or V keys to adjust the value displayed on the right to match the actual airflow which is obtained with a duct traverse measurement or by calculating the volumetric flow Calculated volumetric flow can be determined by multiplying on the current sash open area by the displayed face velocity Part Two Press SELECT key to save data then Raise the fume hood sash above the low flow calibration or to its sash stop approximately 18 Select the corresponding HD HIGH CAL menu item The DIM will display two airflow values Press the A or W keys to adjust the value displayed on
10. 3 4 to 20 mA analog outputs pressure differential DIM terminals 9 10 total supply flow TOT SUP FLOW and total exhaust flow TOT EXH FLOW AOC terminals 50 51 52 and 53 CONFIGURE MAX FLOW The MAX FLOW OUT item scales the flow analog outputs 1 000 5 000 10 000 10 000 MAXIMUM FLOW OUT pins 50 51 52 53 The value selected equates to 10 volts 20 000 30 000 CFM OUTPUT or 20 mA Zero volts or 4 mA equates to no flow This item affects two analog outputs TOT SUP FLOW and TOT 500 2 500 5 000 EXH FLOW 10 000 15 000 I s END OF The END OF MENU item informs you that the end of a MENU menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu The MAC ADDRESS Menu Item replaces the Network Address Menu Item on SureFlow controllers provided with the BACnet MSTP board uoldes eoIUYyde Sv BALANCER FLO MENU SUPPLY BALANCE SUP BALANCE The SUP BALANCE menu item sets a flow rate to allow 0 to 30 000 CFM the balancing of all supply diffusers 0 to 14100 I s Upon entering the SUP BALANCE menu item the controller will control the supply flow to a user programmed constant flow The supply air valve will modulate to maintain the programmed flow NOTE The controller will remain in the SUP BALANCE menu item unless the menu item is exited NOTE Supply flow calibration must be done prior to using the SUP BALANCE menu item to ensure ac
11. 92 APPENDIX G i ssececcisegsfecessSned vena cadet ots seecuseiacecas saci aaea Ne a Eaa A aaa Eae NENE aaas apoE NASAan an 95 Wiring iniormalioni redara T a E ie 95 adad DID e a E E E E E E E 99 ACCESS COUESTO EE e EOE E 99 How to Use This Manual The SureFlow Operation and Service Manual is divided into two parts Part One describes how the SureFlow unit functions and how to interface with the device This section should be read by users facilities staff and anyone who requires a basic understanding of how the SureFlow controller operates Part Two describes the technical aspects of the product which includes operation calibration configuration and maintenance Part Two should be read by personnel programming or maintaining the unit TSI recommends thoroughly reading this manual before changing any software items NOTE This operation and service manual assumes proper SureFlow controller installation Refer to the Installation Instructions to determine if the SureFlow controller has been properly installed PART ONE User Basics Part One provides a brief but thorough overview of the SureFlow product by maximizing information with minimal reading These few pages explain the purpose The Instrument and the operation Useful User Information Digital Interface Module Alarms of the unit Technical product information is available in Part Two of the manual The manual focuses on laboratory spaces however the information is accura
12. Closing switch initiates condition SPST N O Switch Closing switch initiates condition 0 to 10 VDC 10009 platinum RTD TC 385 0 100 C 0 to 10 VDC 0to 10 VDC 0 to 10 VDC or 4 to 20 mA 0 19500 to 0 19500 inches H2O 0 19500 to 0 19500 inches H2O SPST N O Max current 2A Max voltage 220 VDC Maximum power 60 W Contacts close in alarm condition O to 10 VDC Modbus RTU or N2 standard Optional Model 8682 BAC only 24 VAC 10 watts max 50 or 60 Hz 4 9 in x 4 9 in x 1 35 in 12 in x 16 in x 4 in 0 7 Ib 1 8 lbs 79 Pressure Sensor Temperature Compensation Range see adii 55 to 95 F Power Dissipation 0 cccceeesseeeeeeeeeeeeeeetteeeeeeee 0 16 watts at 0 inches H20 0 20 watts at 0 00088 inches H2O Dimensions DXH ceecccceeesccceeseeeceeeeeeeeeeeetees 5 58 in x 3 34 in x 1 94 in Went eeaeee e a a freer re 0 2 Ib Damper Actuator Types Of Actuator eeeccceeeeeeeeeeeeeeeteeeseaeeeeneeees Electric INPUt POWeP aae aa daaa aaia aaa eakas Electric 24 VAC 7 5 watts max Control Signal Input 0 volts damper closed 10 volts damper open Time for 90 Rotation 0 cccscccessseeeeessteeeeesaes Electric 1 5 seconds Appendix A Appendix B Network Communications Network communications are available on the Model 8682 The Model 8682 can communicate with a building management system through Modbus N2 or LonWorks protocols The Model 8682 BAC can communicate with a
13. HOOD EXHAUST 2 FUME HOOD EXHAUST 3 FUME HOOD EXHAUST 4 FUME HOOD EXHAUST 5 FUME HOOD EXHAUST 6 FUME HOOD EXHAUST 7 SENSOR SIGNAL IN AUX EXHAUST 1 AUX EXHAUST 2 SUPPLY 1 SUPPLY 2 TEMPERATURE RTD SUPPLY 4 CN fj ft a a SSI SS a P SENSOR P N 800326 SENSOR CABLE P N 800248 24 VAC IN 13 14 CON f CON RED alk RED Bk GRN WHT ORN Blu TACTSITACTS 24 VAC OUT SENSOR SENSOR RS485 ANALOG OUT PRESSURE SWITCH IN 23 24 25 26 CON J CON CON f CON ITACTSETACTSITACTSITACTS EMERGENCY LOW HIGH ALARM RELAY DIGITAL INTERFACE MODULE P N 800228 DIM COMM CABLE P N 800416 TRANSFORMER P N 800420 24 VAC 120 POWER 24VAC a a i B vac EARTH GND TRANSFORMER CABLE P N 800414 INTERFACE MODULE POWER 24 VAC a POWER 120 60 1 RS485 PORT l l D I M COMM 1 BACnet LONWORKS TRANSFORMER LONWORKS PORT COMM P N 800420 qp 24 VAC IN TRANSFORMER 24 VAC IN CABLE PIN 800414 24VDC OUT REHEAT CONTROL OUTPUT 24VDC OUT TS CONTROLLER SUPPLY CONTROL OUTPUT 0 10VDC CTRL SIG IN AUX EXHAUST CONTROL OUTPUT 0 10VDC CTRL SIG IN 1 10VDC FLOW OUT ANALOG OUTPUT 1 1 10VDC FLOW OUT VENTURI VALVE ONLY ANALOG OUTPUT 2 LOW DP FDBACK IN LOW DP FDBACK IN elelelelelolelolole DIGITAL ALARM OUTPUT 1 DIGITAL ALARM OUTPUT 2 ELECTRIC ACTUATOR P N 800380 DAMPER ACTUATOR WIRING PINS 4649 ADAPTIVE OF
14. building management system through BACnet MSTP protocol Please refer to the appropriate section below for more detailed information Modbus Communications Modbus communications are installed in the Model 8682 adaptive offset room pressure controllers This document provides the technical information needed to communicate between the host DDC system and the Model 8682 units This document assumes the programmer is familiar with Modbus protocol Further technical assistance is available from TSI if your question is related to TSI interfacing to a DDC system If you need further information regarding Modbus programming in general please contact Modicon Incorporated a division of Schneider Electric One High Street North Andover MA 01845 Phone 800 468 5342 The Modbus protocol utilizes the RTU format for data transfer and Error Checking Check the Modicon Modbus Protocol Reference Guide Pl Mbus 300 for more information on CRC generation and message structures The messages are sent at 9600 baud with 1 start bit 8 data bits and 2 stop bits Do not use the parity bit The system is set up as a master slave network The TSI units act as slaves and respond to messages when their correct address is polled Blocks of data can be written or read from each device Using a block format will speed up the time for the data transfer The size of the blocks is limited to 20 bytes This means the maximum message length that can be transferred is 20
15. is followed Software and hardware problems are covered in the troubleshooting chart Pick the problem that most closely resembles your problem and review the possible symptoms and corrective action Software or system performance problems can and are affected by the supply air system exhaust air system or physical configuration of the room Separating TSI system problems from the HVAC system can sometimes be difficult TSI recommends confirming all hardware is operating correctly before troubleshooting software problems Technical Section 69 Hardware Test Three tests need to be performed in order to determine all hardware is functioning correctly The test are broken down into e Confirming wiring is correct e Confirming physical installation is correct e Verifying mechanical components Confirming wiring is correct The most common problem with installed hardware equipment is incorrect wiring This problem usually exists on initial installation or when modifications to the system take place The wiring should be very closely checked to verify it exactly matches the wiring diagram The TSI cables are all color coded to ensure proper wiring A wiring diagram is located in Appendix C of this manual Wiring associated with non TSI components should be closely checked for correct installation If non TSI components are installed consider disconnecting them for testing purposes Confirming physical installation is correct All of the
16. not supported 90 Appendix B Standard Object Types Supported Analog Input No No Analog Value No No Present_Value Real Binary Input No No Active_Text Inactive_Text Binary Value No No Active_Text Present_Value Inactive_Text Enumerated Multi state Input No No State_Text Multi state Value No No State_ Text Present_Value Unsigned Int Device Object No No Object Name Char String Max Master Unsigned Int Data Link Layer Options O BACnet IP Annex J O BACnet IP Annex J Foreign Device O ISO 8802 3 Ethernet Clause 7 O ANSI ATA 878 1 2 5 Mb ARCNET Clause 8 O ANSI ATA 878 1 RS 485 ARCNET Clause 8 baud rate s M MS TP master Clause 9 baud rate s 76 8k 38 4k 19 2k 9600 bps O MS TP slave Clause 9 baud rate s O Point To Point EIA 232 Clause 10 baud rate s O Point To Point modem Clause 10 baud rate s O LonTalk Clause 11 medium O Other Device Address Binding Is static device binding supported This is currently necessary for two way communication with MS TP slaves and certain other devices DYes M No Networking Options O Router Clause 6 List all routing configurations e g ARCNET Ethernet Ethernet MS TP etc O Annex H BACnet Tunneling Router over IP O BACnet IP Broadcast Management Device BBMD Character Sets Supported Indicating support for multiple character sets does not imply that they can all be supported simultane
17. point from a minimum ventilation rate when the space temperature is too warm If room pressure is not maintained the general exhaust damper modulates open until pressure set point is reached provided offset is between MIN OFFSET and MAX OFFSET WIRING This item requires a 1000 platinum RTD temperature sensor to be wired to the TEMPERATURE input AOC pins 29 and 30 The temperature sensor toggles the AOC between VENT MIN SET and COOLING FLOW 0 to 30 000 CFM 0 to 14 100 l s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m O OM Hed SET POINTS MENU continued UNOCCUPIED SUPPLY FLOW MINIMUM MAXIMUM SUPPLY FLOW SET POINT UNOCCUPY SET MAX SUP SET The UNOCCUPY SET item sets a minimum supply flow set point when the laboratory is unoccupied requires fewer air changes per hour When UNOCCUPY SET is active the VENT MIN SET and COOLING FLOW set points are turned off since only one minimum supply set point can be enabled The controller will not allow the supply air damper to be closed further than the UNOCCUPY SET set point If room pressure is not maintained at minimum supply flow the general exhaust damper modulates open until pressure set point is reached provided required offset is between MIN OFFSET and MAX OFFSET WIRING This item is enabled when the OCCUPANT SWT contact closure is closed pins 11 and 12 DIM or the RS 485 co
18. the SET POINT pressure set point If the display indicates closed the AOC uses the REM SET POINT pressure set point The relay menu items are used to change the state of a particular relay contact LOW HIGH LOW SUP HIGH SUP When an item is entered the display will indicate either OPEN or CLOSED The A keys are used to toggle the state of the relay Pressing the A key will OPEN the alarm contact Pressing the Vv key will CLOSE the alarm contact When the contact is closed the relay is in an alarm condition The PRESS AOUT item is used to verify the analog outputs are working When this item is entered the number shown on the display indicates the last analog output value The value displayed ranges from 0 to 255 The value 255 corresponds to 0 volts 4 mA output and 0 corresponds to 10 volts 20 mA output Pressing the A F keys change the count on the display Pressing the A key should increase the analog output Pressing the W key will decrease the analog output The PRESS AOUT function used in conjunction with a volt meter will verify the individual analog output is operating correctly The SUPPLY AOUT item is used to verify the analog outputs are working When this item is entered the number shown on the display indicates the last analog output value The value displayed ranges from 0 to 255 The value 255 corresponds to 0 volts 4 mA output and 0 corresponds to 10 volts 20 mA output Pressing the A V keys change the count on the d
19. the SureFlow system passes each of the tests the mechanical piece parts are all functioning correctly TEST Control output supply Enter CONTROL SUP menu item in diagnostics menu A number between 0 OPEN and 100 OPEN will be displayed Press the A V keys until either 0 OPEN or 100 OPEN shows on the display Note the position of the supply air control damper If display reads 0 OPEN press the A key until 100 OPEN is shown on display If display read 100 OPEN press W key until 0 OPEN is shown on display Note the position of the supply air damper The damper should have rotated either 45 or 90 degrees depending on actuator installed If not see the hardware section Control system is not controlling TEST Control output exhaust Enter CONTROL EXH menu item in diagnostics menu A number between 0 OPEN and 100 OPEN will be displayed Press the A V keys until either 0 OPEN or 100 OPEN shows on the display Note the position of the general exhaust control damper If display reads 0 OPEN press the A key until 100 OPEN is shown on display If display read 100 OPEN press key until 0 OPEN is shown on display Note the position of the general exhaust damper The damper should have rotated either 45 or 90 degrees depending on actuator installed If not see the hardware section Control system is not controlling TEST Control output temperature Enter CONTROL TEMP menu item in diagnostics menu A number between 0 OPEN a
20. the A key increases the number Pressing the W key decreases the number Change the CONTROL value to read 0 OPEN or 100 OPEN Note valve position Press an arrow key to change 0 OPEN to 100 OPEN or 100 OPEN to 0 OPEN Note position of valve Valve should have moved full stroke If Valve is full open when it should be closed or full closed when it should be open go into DIAGNOSTICS menu CONTROL TEMP menu item Change direct to reverse or reverse to direct to change control output direction Technical Section 77 78 This page intentionally left blank Part Two Appendix A Specifications Dim and AOC Module Display ACCUIAGCY anarian dies Resolution Display Update cceccccceeeeseseeeeeseeeeeeseeeeenees Inputs Outputs Switch in Unoccupied Switch in Remote Switch in Flow in Temperature In Outputs Supply Control Exhaust Control Reheat Control Low Alarm Range High Alarm Range Alarm Contacts ea eae General Operating Temperature Internal Scan Rate Input Power including sensor Dim DIMENSIONS cccccccccccceeeeeeeceeeeeeeeeeeeeneneeees AOC Dimensions Dim WeEIQN1 cceecceceeeeeeeeeeeeaeeeeeeeeseaeeeeaaeesenees AOC Weight eissis sinaia aaie 0 20000 to 0 20000 inches H2O 10 of reading 0 00001 inches H2O 5 of reading 0 5 sec See Wiring Information Appendix C for type SPST N O Switch Closing switch initiates condition SPST N O Switch
21. the right to match the actual airflow which is obtained with a duct traverse measurement or by calculating the volumetric flow Calculated volumetric flow can be determined by multiplying on the current sash open area by the displayed face velocity Press SELECT key to save data NOTE Insert number of flow calibration you are performing A low flow calibration must be performed before its associated high flow calibration is performed For example in a laboratory that has two separate supply flows SP1 LOW CAL must be completed before SP1 HIGH CAL SP2 LOW CAL must be completed before SP2 HIGH CAL It is acceptable to complete all low flow calibrations before completing their associated high flow calibrations To continue with the previous example SP1 LOW CAL and SP2 LOW CAL could both be completed before completing SP1 HIGH CAL and SP2 HIGH CAL Fume hood face velocity calibration must be completed before beginning fume hood flow calibration Maintenance and Repair Parts The Model 8682 SureFlow Room Pressure Controller requires minimal maintenance Periodic inspection of system components as well as an occasional pressure sensor cleaning are all that are needed to insure that the Model 8682 is operating properly System Component Inspection It is recommended that the pressure sensor be periodically inspected for accumulation of contaminants The frequency of these inspections is dependent upon the quality of the air being drawn ac
22. through the menus menu items and through the range of item values that can be selected Depending on the item type the values may be numerical specific properties on off or a bar graph Emergency Key Red with Black Letters EMERGENCY Key The red EMERGENCY key puts the controller into emergency mode If the room is under negative room pressure control the emergency mode will maximize the negative pressure Conversely if the room is under positive room pressure control the emergency mode will maximize the positive pressure Pressing the EMERGENCY key will cause the display to flash EMERGENCY the red alarm light to flash on and off and the audible alarm to beep intermittently To return to control mode press the EMERGENCY or RESET key Alarms SureFlow controller has visual red light and audible alarms to inform you of changing conditions The alarm levels set points are determined by administrative personnel Industrial Hygienists or the facilities group depending on the organization The alarms audible and visual will activate whenever the preset alarm level is reached Depending on the SureFlow controller items installed programmed alarms will activate when room pressure is low or inadequate when room pressure is high or too great or when the supply or general exhaust air flow is insufficient When the laboratory is operating safely no alarms will sound Example The low alarm is programmed to activate when the roo
23. AR is selected when a linear output flow station is installed 0 5 VDC Typically a thermal anemometer based flow station NONE PRESSURE or LINEAR PRESSURE oO OM Hed EXHAUST FLOW MENU continued MAXIMUM FLOW STATION VELOCITY EXHAUST FLOW LOW CALIBRATION SETTING EXHAUST FLOW HIGH CALIBRATION SETTING EXHAUST FLOW LOW CALIBRATION EXHAUST FLOW HIGH CALIBRATION TOP VELOCITY EX LOW SETP EX HIGH SETP EX1 LOW CAL EX2 LOW CAL EX1 HIGH CAL EX2 HIGH CAL velocity of a linear flow station output A TOP VELOCITY must be input for the linear flow station to operate NOTE This item is disabled if a pressure based flow station is installed damper position for general exhaust low flow calibration damper position for the general exhaust high flow calibration measured general exhaust flow rate and the calibrated value for that general exhaust flow The calibrated general exhaust can be adjusted using the A V keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data measured general exhaust flow rate and the calibrated value for that general exhaust flow The calibrated general exhaust flow can be adjusted using the A V keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data 0 to 5 000 ft min 0 to 25 4 m s 0 Open to 100 Open 0 Open to 100 Open The TOP VELOCITY item i
24. B HD5 FLOW IN LOW SUP REL TEMP TR HD6 FLOW IN HIGH EXH REL TEMP TI HD7 FLOW IN PRESS AOUT SUPPLY AOUT EXHAUST AOUT RESET TO DEF 12 Part Two INPUT CHECK SUP 1 SUP 2 SUP 3 SUP 4 EXH 1 EXH 2 HOOD 1 HOOD 2 HOOD 3 HOOD 4 HOOD 5 HOOD 6 HOOD 7 HOOD FLOW HD1 DCT AREA HD2 DCT AREA HD3 DCT AREA HD4 DCT AREA HD5 DCT AREA HD6 DCT AREA HD7 DCT AREA HD1 FLO ZERO HD2 FLO ZERO HD3 FLO ZERO HD4 FLO ZERO HD5 FLO ZERO HD6 FLO ZERO HD7 FLO ZERO FLO STA TYPE TOP VELOCITY INTERFACE NET PROTOCOL NET ADDRESS LON MAC ADDRESS MAC ID OUTPUT RANGE OUTPUT SIG MAX FLOW OUT HOOD CAL HD1 LOW CAL HD1 HIGH CAL HD2 LOW CAL HD2 HIGH CAL HD3 LOW CAL HD3 HIGH CAL HD4 LOW CAL HD4 HIGH CAL HD5 LOW CAL HD5 HIGH CAL HD6 LOW CAL HD6 HIGH CAL HD7 LOW CAL HD7 HIGH CAL MIN HD1 FLOW MIN HD2 FLOW MIN HD3 FLOW MIN HD4 FLOW MIN HD5 FLOW MIN HD6 FLOW MIN HD7 FLOW RESET CAL BALANCER FLO SUP BALANCE EXH BALANCE SUPPLY FLOW SP1 DCT AREA SP2 DCT AREA SP3 DCT AREA SP4 DCT AREA SP1 FLO ZERO SP2 FLO ZERO SP3 FLO ZERO SP4 FLO ZERO FLO STA TYPE TOP VELOCITY SP LOW SETP SP HIGH SETP SP1 LOW CAL SP1 HIGH CAL SP2 LOW CAL SP2 HIGH CAL SP3 LOW CAL SP3 HIGH CAL SP4 LOW CAL SP4 HIGH CAL RESET CAL EXHAUST FLOW EX1 DCT AREA EX2 DCT AREA EX1 FLO ZERO EX2 FLO ZERO FLO STA TYPE TOP VELOCITY EX LOW SETP EX HIGH SETP EX1 LOW CAL EX1 HIGH CAL EX2 LOW CAL EX2 HIGH CAL RESET CAL LON Menu Item or MAC ADDRESS Me
25. CAL EX1 DCT AREA EX2 DCT AREA EX1 FLO ZERO EX2 FLO ZERO FLO STA TYPE TOP VELOCITY EX LOW SETP EX HIGH SETP EX1 LOW CAL EX1 HIGH CAL EX2 LOW CAL EX12HIGH CAL HD1 DCT AREA through HD7 DCT AREA HD1 FLO ZERO through HD7 FLO ZERO FLO STA TYPE TOP VELOCITY EX1 LOW CAL EX1 HIGH CAL through EX7 LOW CAL EX7 HIGH CAL MIN OFFSET MAX OFFSET NOTE If temperature or pressure control is being maintained by the AOC the following menu items must also be programmed e Temperature The temperature cooling and heating values VENT MIN SET COOLING FLOW TEMP SETP e Pressure The pressure differential value SET POINT There are additional programmable software menu items to tailor the controller to your specific application or increase flexibility These menu items are not required to be programmed for the AOC to operate Technical Section 57 Programming Example The laboratory shown is Figure 7 is being initially setup The required HVAC information is below the figure Flow Station 6 places Damper Actuator 6 places Adaptive Offset Controller mounted above ceiling Pressure Sensor Digital Interface Module Figure 7 Laboratory Setup Example Laboratory design Laboratory size 18x30x10 5 400 ft 5 foot fume hood 4 250 CFM min 1 000 CFM max Flow offset 300 1000 CFM Ventilation set point 900 CFM ACPH 10 Supply Cooling Volume 1 200 CFM Pressure differential
26. CONTROL SIGNAL CONTROL The CONTROL SIG item switches both the supply and 4 to 20 mA or 0 to 10 VDC SIG exhaust control outputs from 0 to 10 VDC to 4 to 20 mA 0 to 10 VDC TSI actuators require a 0 to 10 VDC control signal SUPPLY SUP CONT The SUP CONT SIG item determines the supply control Direct or Reverse Direct CONTROL DIR signal s output direction As an example if the control DIRECTION system closes the supply damper instead of opening the damper this option will reverse the control signal to now open the damper EXHAUST EXH CONT The EXH CONT SIG item determines the exhaust control Direct or Reverse Direct CONTROL DIR signal s output direction As an example if the control DIRECTION system closes the exhaust damper instead of opening the damper this option will reverse the control signal to now open the damper TEMPERATURE TEMP DIR The TEMP CONT SIG item determines the temperature Direct or Reverse Direct CONTROL control signal s output direction As an example if the DIRECTION control system closes the reheat valve instead of opening the valve this option will reverse the control signal to now open the valve REHEAT REHEAT SIG The REHEAT SIG item switches the temperature control 4 to 20 mA or 0 to 10 VDC CONTROL SIGNAL output from 0 to 10 VDC to 4 to 20 mA 0 to 10 VDC OM Wed CONTROL MENU continued Kc 0 to 1000 Ti 0 to 1000 Ti 200 Ke VALUE Ke VALUE Ti VALUE Ti VALUE The range of values is
27. CT or MENU key to exit out of the menu uoloeS jeoIUYyde Lv INPUT CHECK MENU INDIVIDUAL SUP 1 When one of these items is entered a voltage NONE Read only NONE SUPPLY FLOW through representing the corresponding flow input will be value SIGNAL CHECK SUP 4 displayed If the voltage displayed is negative double check the polarity of the flow input wiring INDIVIDUAL EXH 1 When one of these items is entered a voltage NONE Read only NONE EXHAUST FLOW and representing the corresponding flow input will be value SIGNAL CHECK displayed If the voltage displayed is negative double EXH 2 a check the polarity of the flow input wiring INDIVIDUAL FUME HOOD 1 When one of these items is entered a voltage NONE Read only NONE HOOD EXAUST through representing the corresponding flow input will be value FLOW SIGNAL HOOD 7 displayed If the voltage displayed is negative double CHECK check the polarity of the flow input wiring END OF The END OF MENU item informs you that the end of a MENU menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu S INTERFACE MENU NETWORK NET The NET PROTOCOL item selects the communications MODBUS N2 MODBUS PROTOCOL PROTOCOL protocol used to interface with the building management system If LONWORK s interface is being used this menu item is deleted no selection is required NETWORK NET The NET ADDRESS item is used to selec
28. ERROR Calibration data lost Sensor must be returned to TSI to be calibrated DATA ERROR Problem with EEPROM field calibration or analog output calibration lost Check all data programmed and confirm unit is function correctly The TEMP INPUT item reads the input from the temperature sensor When this item is entered a voltage will be indicated on the display The exact voltage displayed is relatively unimportant It is more important that the voltage changes indicating the temperature sensor is working correctly The output range that can be read is resistance The OCCUPANT SWT item reads the input of the OCCUPANT SWT contact pins 11 and 12 DIM When this item is entered the display will indicate either open or closed If the display indicates open the AOC uses the VENT MIN SET or COOLING FLOW as the minimum supply flow set point If the display indicates closed the AOC uses UNOCCUPY SET as the minimum supply flow set point The AOC will use the SET POINT pressure set point in either case uoldeS eoIUYyde 6 DIAGNOSTICS MENU continued REM SET POINT INPUT RELAY OUTPUT PRESSURE ANALOG OUTPUT SUPPLY ANALOG OUTPUT REMOTE SWT LOW ALM REL HIGH ALM REL LOW SUP REL HIGH SUP REL PRESS AOUT SUPPLY AOUT The REMOTE SWT item reads the input of the REMOTE SWT contact pins 3 and 4 When this item is entered the display will indicate either open or closed If the display indicates open the AOC uses
29. F TEST PASSED if DIM electronics are good If unit displays DATA ERROR at the end of the test the electronics may be corrupted Check all software items to determine cause of DATA ERROR If SELF TEST PASSED was displayed proceed to check individual components Enter Diagnostics and Flow Check Menu to check the following e Control output supply if controlling supply air e Control output exhaust if controlling exhaust air e Sensor input if pressure sensor is installed e Sensor status if pressure sensor installed e Temperature input e General exhaust flow station s e Supply flow station s e Fume hood flow station s The menu items are explained in detail in the Menu and Menu Items section of the manual so their function is not reviewed here If the AOC system passes each of the checks the mechanical piece parts are all functioning correctly Technical Section 61 CHECK Control output supply Enter CONTROL SUP menu item in diagnostics menu A number between 0 and 100 will be displayed Press the A V keys until either 0 or 100 shows on the display Note the position of the supply air control damper If display reads 0 press the A key until 100 is shown on display If display reads 100 press Y key until 0 is shown on display Note the position of the supply air damper The damper should have rotated either 45 or 90 degrees depending on actuator installed CHECK Control output exhaust Ente
30. FSET CONTROLLER Wiring Information Figure 11 Wiring Diagram Electric 97 98 This page intentionally left blank Appendix C Appendix D Access Codes There is one access code for all menus If the access code is required to enter a menu pressing the key sequence below will allow access to the menu The access code must be entered within 40 seconds and each key must be pressed within 8 seconds An incorrect sequence will not allow access to the menu Key 1 2 ACCESS CODE Emergency Mute Mute Menu Aux 99 TSE UNDERSTANDING ACCELERATED TSI Incorporated Visit our website www tsi com for more information USA Tel 1 800 874 2811 India Tel 91 80 67877200 UK Tel 44 149 4 459200 China Tel 86 10 8251 6588 France Tel 33 4 91 11 87 64 Singapore Tel 65 6595 6388 Germany Tel 49 241 523030 P N 1980483 Rev F 2012 TSI Incorporated Printed in U S A
31. ND OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu The HD LOW CAL menu items display the currently measured fume hood flow rate and the calibrated value for that fume hood flow The calibrated hood flow can be adjusted using the A V keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data The HD HIGH CAL menu items display the currently measured fume hood flow rate and the calibrated value for that fume hood flow The calibrated hood flow can be adjusted using the A W keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data gl A OM Hed HOOD CAL MENU continued MINIMUM HOOD MIN HD1 FLOWS FLOW through MIN HD7 FLOW RESET RESET CAL CALIBRATION END OF MENU The MIN HD FLOW menu items adjust the minimum flow value for each fume hood input Use this menu item if the fume hood flow measurements are too low when the sash is closed The RESET CAL menu item restores the default calibration adjustments for the 7 hood flows When this menu item is entered the 8682 will prompt the user to verify that they want to do this by indicating NO Use the A V keys change the display to YES then press the SELECT key to reset the calibrations Pressing the MENU key before the SELECT key will exit out o
32. Normal 1 Unoccupied Setback Status Index 4 Status of SureFlow device 0 Normal 1 Dim Data Error 2 Alarm Low Pressure 3 Alarm High Pressure 4 Alarm Min Supply 5 Alarm Max Exhaust 6 Data Error 7 Cal Error 8 Emergency Mode Room Velocity 5 Velocity of room pressure Displayed in ft min Room Pressure 6 Room Pressure Displayed in inches H20 Host DDC system must divide by 100 000 to report pressure correctly Total Supply Flow 7 Total supply into laboratory Displayed in CFM Total Exhaust Flow 8 Total exhaust out of laboratory Displayed in CFM Offset Set point 9 Current offset set point Displayed in CFM Temperature 10 Current temperature value Displayed in F Fume Hood 1 Flow 11 Flow measured by flow station Displayed in CFM connected to hood input 1 Fume Hood 2 Flow 12 Flow measured by flow station Displayed in CFM connected to hood input 2 Fume Hood 3 Flow 13 Flow measured by flow station Displayed in CFM connected to hood input 3 Fume Hood 4 Flow 14 Flow measured by flow station Displayed in CFM connected to hood input 4 Fume Hood 5 Flow 15 Flow measured by flow station Displayed in CFM connected to hood input 5 Fume Hood 6 Flow 16 Flow measured by flow station Displayed in CFM connected to hood input 6 Fume Hood 7 Flow 17 Flow measured by flow station Displayed in CFM connected to hood input 7 Exhaust 1 Flow 18 Flow measured by flow station Displayed in CFM connected to general exhaust i
33. OPEN Note position of damper Damper should have rotated 45 or 90 degrees depending on actuator system installed If damper rotated 45 or 90 degrees actuator is installed and operating correctly If damper did not rotate check that e Jumper is installed correctly on actuator or E P Appendix e Damper is not physically stuck screws etc e Wiring is correct between actuators and controller Check that voltage varies between 0 and 10 volts on pins 6 and 7 on electric actuator or E P see No control output signal e Electric actuator is not over torqued The electric actuator has current limiting protection If damper is physically stuck or actuator is over current the actuator will shut down To restart either kill power to actuator or move damper in opposite direction it was trying to rotate CONTROL SUP or CONTROL EXH menu item Perform test described in Control system is not controlling f CONTROL OUT is functioning verify wiring to VFD by confirming CONTROL OUT voltage changes at VFD If voltage changes a problem with VFD exists See VFD manual for further troubleshooting If damper is full open when it should be closed or full closed when it should be open go into CONTROL menu CONTROL SIG menu item Change direct to reverse or reverse to direct to change control output direction The control sig changes the direction of both the supply and exhaust damper If only 1 damper rotates incorrectly change the jumper on th
34. SI flow station transducer The Maintenance and Repair Part section covers all routine maintenance of equipment along with a list of repair parts Software Programming Programming the SureFlow controller is quick and easy if the programming keys are understood and the proper keystroke procedure is followed The programming keys are defined first followed by the required keystroke procedure At the end of this section is a programming example NOTE The unit is always operating while programming unit except when checking the control outputs When a menu item value is changed the new value takes effect immediately after saving the change NOTE This section covers programming the instrument through the keypad and display If programming through RS 485 communications use the host computer s procedure The changes take place immediately upon saving data Technical Section 7 Programming Keys The four keys with blue characters refer to Figure 4 are used to program or configure the unit to fit your particular application Programming the instrument will change how the unit functions so thoroughly review the items to be changed ein MUTE A TEST RESET SELECT y Figure 4 Programming Keys MENU Key The MENU key has three functions 1 The MENU key is used to gain access to the menus when the unit is in the normal operating mode Pressing the key once will exit the normal operating mode and enter the programming mod
35. SUP ALM VELOCITY times the can be accessed Actual total supply air flow is supply duct area in found in TOT SUP FLOW menu item system flow square feet ft menu square meters m WIRING This item is disabled when the UNOCCUPY SET is enabled SWITCH INPUT contact closure is closed pins 11 and 12 DIM or the RS 485 communications sends a command MAXIMUM MAX EXH The MAX EXH ALM item sets the general exhaust duct s 0 to 30 000 CFM OFF EXHAUST ALM flow alarm set point A maximum flow alarm is defined as 0 to 14 100 I s FLOW ALARM when the general exhaust duct flow is greater than the MAX 6L EXH ALM set point NOTE General exhaust air duct size EX1 DCT AREA and or EX2 DCT AREA Exhaust Flow menu must be entered before MAX EXH ALM can be accessed Actual total exhaust air flow is found in TOT EXH FLOW menu item SYSTEM FLOW menu Linear based flow stations 0 to TOP VELOCITY times the supply duct area in square feet ft square meters m OM Hed ALARM MENU continued ALARM RESET ALARM RESET AUDIBLE AUDIBLE ALARM ALM ALARM DELAY ALARM DELAY The ALARM RESET item selects how the alarms terminate after the unit returns to control set point pressure or flow UNLATCHED alarm follow automatically resets the alarms when the unit reaches control set point LATCHED requires the staff to press the RESET key after the unit returns to control set point The ALARM RESET affects the audible alarm
36. SUREFLOW ADAPTIVE OFFSET CONTROLLER MODELS 8682 8682 BAC OPERATION AND SERVICE MANUAL START SEEING THE Beeri Ea GF REGISTERING TODAY Thank you for your TSI instrument purchase Occasionally TSI releases information on software updates product enhancements and new products By registering your instrument TSI will be able to send this important information to you http register tsi com As part of the registration process you will be asked for your comments on TSI products and services TSI s customer feedback program gives customers like you a way to tell us how we are doing UNDERSTANDING ACCELERATED TSI Incorporated Visit our website www tsi com for more information USA Tel 1 800 874 2811 India Tel 91 80 67877200 UK Tel 44 149 4 459200 China Tel 86 10 8251 6588 France Tel 33 491 11 87 64 Singapore Tel 65 6595 6388 Germany Tel 49 241523030 2012 TSI Incorporated Printed in U S A SUREFLOW ADAPTIVE OFFSET CONTROLLER MODELS 8682 8682 BAC OPERATION AND SERVICE MANUAL P N 1980483 Revision F December 2012 U S AND CANADA OTHER COUNTRIES Sales amp Customer Service Sales amp Customer Service 800 874 2811 651 490 2811 001 651 490 2811 651 490 3824 001 651 490 3824 SHIP MAIL TO E MAIL TSI Incorporated answers tsi com ATTN Customer Service 500 Cardigan Road WEB SITE Shoreview MN 55126 www tsi com USA v Copyright TSI Incorporated
37. age value If control direction for a given output is set to DIRECT the diagnostic value will be percent OPEN If control direction for a given output is set to REVERSE the diagnostic value will be percent CLOSED NOTE The greatest flow requirement dominates the supply flow If hood replacement air exceeds the ventilation or temperature flow minimums the replacement air requirement is maintained minimums are ignored 56 Part Two In summary understanding the AOC control algorithm is the key to getting the system functioning correctly The AOC control algorithm functions as follows General exhaust is closed or at minimum position except when supply air is at minimum position and pressure control cannot be maintained Independent control loop Programmed by fume hood controller by user User maintains face velocity programs Hood exhaust flow is minimum and monitored by AOC The maximum AOC does not control offset the fume hood Supply air is at minimum position unless additional replacement air is required fume hood or general exhaust Required Software Programming The following menu items must be programmed for the AOC to function See Menu and menu items section for information in individual menu items SP1 DCT AREA through SP4 DCT AREA SP1 FLO ZERO through SP4 FLO ZERO FLO STA TYPE TOP VELOCITY SP LOW SETP SP HIGH SETP SP1 LOW CAL SP1 HIGH CAL through SP4 LOW CAL SP4 HIGH
38. al 1 Low Flow Alarm Max Exhaust Flow Alarm 0O Normal 1 High Flow Alarm Emergency Mode 0 Normal 1 Emergency Unoccupied Mode 0 Normal Mode 1 Unoccupied Mode Data Error 0 Normal 1 ft min m s Control Set point in H2O Pa ft min m s Low Alarm Set point in H2O Pa ft min m s High Alarm Set point in H2O Pa Minimum Supply Volume Ventilation Set point Minimum Supply Volume Temperature Set point 6 CFM i s Minimum Supply Volume in Unoccupied Mode Minimum Supply Flow Alarm Set point I8 CFM I s___ Max Exhaust Flow Alarm Set point 9 CFM i s Minimum Offset Set point Maximum Offset Set point Maximum Supply Flow Set point Minimum Exhaust Flow Set point Temperature Set point Unoccupied Temperature Set point Units 0 Feet per minute 1 Meters per second 2 Inches of H2O 3 Pascals Units will correspond with choice in UNITS variable AO 14 Flow rates will either be CFM or I s based on whether UNITS variable is set for an English or metric unit type Temperatures will be either F or C depending on the UNITS variable These are the only binary units that can be remotely activated Network Modbus Communications 87 LonWorks Node Object Node Object Network variables nviRequest nvoStatus SNVT_obj_request SNVT_obj_status nviSetTime nvoAlarm SNVT_time_stamp SNVT_alarm SNVT_switch SNVT_char_ascii nvoStatusIndex SNVT_char_ascii Configuration properties nci 4 nciO
39. ater alcohol acetone or trichlorethane may be used as a solvent to remove other contaminants 68 Part Two Replacement Parts All components of the room pressure controller are field replaceable Contact TSI HVAC Control Products at 800 874 2811 U S and Canada or 001 651 490 2811 other countries or your nearest TSI Manufacturer s Representative for replacement part pricing and delivery Digital Interface Module 8682 BAC only Troubleshooting Section The SureFlow Room Pressure Controller is designed to be trouble free However installation problems or interaction with other HVAC components may cause system problems The SureFlow system is easy to troubleshoot if an organized approach to evaluate the system is taken Troubleshooting is broken down into hardware and software problems Hardware problems deal with the physical installation of the device Hardware problems include wiring problems incorrectly installed equipment and add ons or non TSI equipment Software problems include control problems configuration problems or interaction problems with the HVAC system The hardware test described in this section determines that all TSI mechanical components are functioning correctly The hardware test requires the diagnostics menu items to be accessed If you are unfamiliar with the SureFlow menus see Software Programming for keystroke procedure Troubleshooting the majority of problems is usually quick if the hardware test
40. ation When a volt meter is hooked to the flow station output a voltage should be displayed The exact voltage displayed is relatively unimportant It is more important that the voltage is changing which indicates the flow station is working correctly oO O OM Hed FLOW CHECK MENU continued INDIVIDUAL FUME HOOD EXHAUST FLOW HD1 FLOW IN through HD7 FLOW IN END OF MENU The HD FLOW IN menu item displays the current NONE exhaust flow from a fume hood This item is a diagnostics NONE Read only tool to compare the hood flow reading to a traverse of the value duct work If flow reading and traverse match within 10 no change is needed If flow error is greater than 10 calibrate the flow station When a volt meter is hooked to the flow station output a voltage should be displayed The exact voltage displayed is relatively unimportant It is more important that the voltage is changing which indicates the flow station is working correctly The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu uoldeS eoIUYde Ze DIAGNOSTICS MENU SUPPLY AIR CONTROL CONTROL SUP OUTPUT EXHAUST AIR CONTROL CONTROL EXH OUTPUT The CONTROL SUP item manually changes the control output signal to the supply air actuator damper or motor speed drive When this item is entered a value betw
41. ay will not indicate room pressure or room pressure status when no pressure sensor is installed The alarms can be programmed to indicate when low supply or exhaust flow is present User Basics 3 Keypad The keypad has six keys The gray keys with black letters are user information keys In normal operation these keys are active Additionally the red emergency key is active The gray keys with blue characters are used to program the unit A thorough description of each key is given on the next two pages User Keys Gray with Black Letters The four keys with black letters provide you information without changing the operation or the function of the unit TEST Key The TEST key initiates an instrument self test Pressing the TEST key activates a scrolling sequence on the display that shows the product model number software version and all set point and alarm values The unit then performs a self test that tests the display indicator lights audible alarm and internal electronics to ensure they are operating properly If a problem with the unit exists DATA ERROR will be displayed You should have qualified personnel determine the problem with the unit RESET Key The RESET key performs three functions 1 Resets the alarm light alarm contacts and audible alarm when in a latched or non automatic reset mode The DIM must return to the safe or normal range before the RESET key will operate 2 Resets the emergency function after the eme
42. built into the software that prevent users from programming conflicting alarm information These are as follows 1 The AOC does not allow the pressure alarms to be programmed within 20 ft min 0 00028 in H20 at 0 001 in H20 of the control set point Example The control SET POINT is set at 0 001 in H2O The LOW ALARM set point cannot be set higher than 0 00072 in H20 Conversely the HIGH ALARM set point cannot be set lower than 0 00128 in H2O 2 The minimum flow alarm MIN SUP ALM must be programmed to be at least 50 CFM less than the minimum flow set point 3 The pressure alarms LOW ALARM HIGH ALARM can be programmed for positive or negative pressure However both the low and high alarm must be set either positive or negative The AOC does not allow one positive alarm and one negative alarm 4 Alarms do not terminate until the pressure or flow slightly exceeds alarm set point 5 The ALARM RESET item selects how the alarms will terminate when controller returns to the safe range The pressure and flow alarms all terminate the same they are either latched or unlatched If unlatched is selected the alarms automatically turn off when the value slightly exceeds set point If latched is selected the alarms will not terminate until the controller returns to set point and the RESET key is pressed oo OM Hed There is a programmable ALARM DELAY that determines how long to delay before activating the alarms This delay affects all pr
43. bytes The typical response time of the device is around 0 05 seconds with a maximum of 0 1 seconds Unique to TSI The list of variable addresses shown below skips some numbers in the sequence due to internal Model 8682 functions This information is not useful to the DDC system and is therefore deleted Skipping numbers in the sequence will not cause any communication problems All variables are outputted in English units ft min CFM or inches H20 The room pressure control set points and alarms are stored in ft min The DDC system must convert the value to inches of water if that is desired The equation is given below Pressure in Inches H20 6 2 10 Velocity in ft min 836 Modbus Variables These variables can be read using Modbus command 03 Read Holding Registers They can be written to using Modbus command 16 Preset Multiple Regs Many of these variables are the same menu items that are configured from the SureFlow keypad The calibration and control items are not accessible from the DDC system This is for safety reasons since each room is individually setup for maximum performance 81 8682 Modbus Variable List Software Version 0 Current Software Version 1 00 100 Controller Type 1 Controller Model Number 8682 Emergency Mode 2 Emergency Mode Control 0 Leave emergency mode 1 Enter emergency mode Control Mode 3 Control mode of device 0
44. ck CRC 8E 1000 CFM 04 BO 1200 CFM Appendix B N2 Communications Description of Variables NPT Network Point Type Variables are defined as analog inputs binary inputs and analog outputs Analog inputs are current control parameters and items that the controller is measuring Binary inputs represent controller states Analog outputs are the programmable set points for the isolation room pressure controller and monitor These set points can be changed through the keypad or by overriding the current set point NPA Network Point Address Address of the desired point Change of Status COS Room Pressure Analog Input The 8682 has the ability to change control set points locally The alarm set points need to be based on the controller s control set point AO 1 For example the set point could go from 0 002 in H2O to 0 001 in H20 If the COS alarm set points are not changed to accommodate you could get low alarm or low warning messages when the unit is working correctly If these alarm points are set outside of the negative and positive set point values incorrect alarm messages can be prevented Override Analog Input Command Analog Input values can be set using the override command These values will be reset to the correct items when the Override is released There is not a time out on the override command Override Binary Input Command Overriding a 1 to Emergency binary inputs enables that mode To release the contr
45. ct area EX1 DCT AREA 1 0 ft 12 x 12 General exhaust duct area SP1 DCT AREA 3 33 ft 24 x 20 Supply duct area MIN OFFSET 300 CFM Minimum offset MAX OFFSET 1 000 CFM Maximum offset EXH CONFIG UNGANGED Default value Additional menu items to program for temperature and pressure control VENT MIN SET 900 CFM 10 air changes per hour COOLING FLOW 1 200 CFM Required flow to cool laboratory TEMP SETP 72 F Temperature sensor switches from VENT MIN SET to COOLING FLOW SET POINT 0 001 in HO Pressure differential set point Technical Section 59 Sequence Of Operation Beginning scenario Laboratory is maintaining pressure control 0 001 H20 Temperature requirement is satisfied Fume hood sashes are down total hood exhaust is 1 000 CFM Supply air is 900 CFM maintain ventilation General exhaust 200 CFM calculated from below Fume hoods General exhaust Offset Supply air 1 000 300 900 Two fume hoods are opened so that the chemists can load experiments into the hood The face velocity 100 ft min is maintained by modulating the fume hood dampers The total fume hood flow is now 2 500 CFM 1 000 1 000 250 250 Fume hoods General exhaust Offset Supply air 2 500 0 300 2 200 The supply air volume changes to 2 200 CFM 2 500 CFM hood exhaust 300 CFM offset The general exhaust is closed since no additional exhaust is needed for temperature or ventilation However the Digita
46. curate balancing EXHAUST BALANCE EXH BALANCE The EXH BALANCE menu item sets a flow rate to allow 0 to 30 000 CFM the balancing of all exhaust diffusers 0 to 14100 I s Upon entering the EXH BALANCE menu item the controller will control the exhaust flow to a user programmed constant flow The exhaust air valve will modulate to maintain the programmed flow NOTE The controller will remain in the EXH BALANCE menu item unless the menu item is exited NOTE Exhaust flow calibration must be done prior to using the EXH BALANCE menu item to ensure accurate balancing The BALANCER FLO menu is only available on the TSI Model 8682 BAC Adaptive Offset Controller O OM Hed SUPPLY FLOW MENU SUPPLY AIR DUCT SP1 DCT SIZES SUPPLY FLOW STATION ZERO FLOW STATION TYPE AREA through SP4 DCT AREA SP1 FLO ZERO through SP4 FLO ZERO FLO STA TYPE The SP DCT AREA item inputs the supply air exhaust 0 to 10 square feet 0 duct size The duct size is needed to compute the supply 0 to 0 9500 square air flow into the laboratory This item requires a flow meters station to be mounted in each supply duct The DIM does not If the DIM displays English units area must be entered in compute duct area square feet If metric units are displayed area must be The area must be first entered in square meters calculated and then entered into the unit The SP FLO ZERO item establishes the flow station NONE ze
47. d 1 Unoccupied Binary Value 2 Remote Mode 0 Normal Mode 1 Remote Mode Multi State Status Index 1 Normal Input 2 Dim Data Error 3 Low Press Alarm 4 High Press Alarm 1 5 Min Supply Alarm 6 Max Exhaust Alarm 7 Data Error 8 Cal Error 9 Emergency Multi State Emergency Mode 1 Exit Emergency Value 2 Mode 2 Enter Emergency Mode Multi State Units Value 1 ft min Value 3 2 m s 3 in HO 4 Pa Device 868001 TS18682 The units are based on the value of the Units Value object When the Units Value is set to 1 or 3 the units are in English form When the Units Value is set to 2 or 4 the units are metric English is the default value The device instance is 868000 summed with the MAC address of the device Network Modbus Communications 93 94 This page intentionally left blank Appendix B Appendix C Wiring Information Back Panel Wiring 1 2 Input 24 VAC to power Digital Interface Module DIM NOTE 24 VAC becomes polarized when connected to DIM 24 VAC power for Pressure Sensor 0 to 10 VDC pressure sensor signal Communications RS 485 communications between DIM and pressure sensor See menu item OUTPUT SIG See menu item UNOCCUPY SET 13 14 Output Low alarm relay N O closes in low alarm condition See menu item LOW ALARM 15 16 RS 485 communications DIM to Adaptive Offset Controller AOC 17 22 23 24 Input Non powered switch input N O contacts for Emergency input NOTE Clos
48. dicates maximum speed This is the fastest the controller will operate 1 bar is the slowest the controller will operate The more bars displayed the faster the control output 1 to 10 bars 5 bars O OM Hed CONTROL MENU continued SENSITIVITY SENSITIVITY The SENSITIVITY item is used to select the integral dead band The integral dead band determines when the controller uses integral control slow control and when the controller enters PID control fast control When this item is selected a bar graph will be shown on the display There are 10 bars total with each one representing 50 CFM Starting from the right side sign 10 bars displayed indicates no dead band so the controller is always in PID control mode Each bar missing represents 50 CFM of integral dead band The less bars displayed the larger the integral dead band For example with 8 bars displayed 2 bars missing and an offset of 500 CFM the integral dead band is between 400 and 600 CFM When the measured offset is within this range integral or slow control is used However when the flow offset falls below 400 CFM or rises above 600 CFM PID control is enabled until the unit returns within the dead band The SENSITIVITY item has a unique feature that when zero bars are displayed the unit never goes into PID control The control output is always a slow control signal 0 to 10 bars 5 bars uoldeS jeoIUYyde Le CONTROL MENU continued
49. dulating the reheat coil The Model 8682 continuously compares the temperature set point to the actual space temperature If set point is being maintained no changes are made If set point is not being maintained and the space temperature is rising the controller will first modulate the reheat valve closed Once the reheat valve is fully closed the controller will begin a 3 minute time period If after the 3 minute time period the reheat valve is still fully closed the Model 8682 will then gradually begin increasing the supply volume by 1 CFM second up to the COOLING FLOW set point The controller when controlling supply flow for cooling will not increase the supply flow above the COOLING FLOW ventilation rate If the space temperature decreases below the set point the controller will first reduce the supply volume Once the supply volume reaches its minimum VENT MIN SET the controller will then start a 3 minute time period If after 3 minutes the supply flow is still at the VENT MIN SET flow rate the controller will begin modulating the reheat coil open to meet the heating demand If the general exhaust is in the closed position and fume hood loads require additional replacement air the Model 8682 will override ventilation or temperature set points to modulate supply for pressurization control Temperature will then be controlled by the reheat valve in this sequence The control output items in the DIAGNOSTICS menu will show a percent
50. e When the MENU key is first pressed the first two menus are listed 2 When the unit is being programmed the MENU key acts like an escape key e When scrolling through the main menu pressing the MENU key will return the unit to standard operating mode e When scrolling through the items on a menu pressing the MENU key will return you to the list of menus e When changing data in a menu item pressing the MENU key will escape out of the item without saving changes 3 When programming is complete pressing the MENU key will return the unit to normal operating mode SELECT Key The SELECT key has three functions 1 The SELECT key is used to gain access to specific menus To access a menu scroll through the menus using arrow keys and place the flashing cursor on the desired menu Press the SELECT key to select the menu The first line on the display will now be the selected menu and the second line will show the first menu item The SELECT key is used to gain access to specific menu items To access a menu item scroll through the menu items until item appears Press the SELECT key and the menu item will now appear on the first line of the display and the second line will show the item value Pressing the SELECT key when finished changing an item will save the data and exit back to the menu items An audible tone 3 beeps and visual display saving data gives confirmation data is being saved Part Two A V Keys The A
51. e E P or electric actuator 74 Part Two Control system is not controlling continued Damper is full open or full closed won t move Actuator jumper is missing or loose Verify jumper is installed correctly Control wires are loose Check wires and verify control output is working see no control output signal If control output test passes verify damper is rotating correct direction see damper rotating opposite direction lf damper is rotating correctly and set point cannot be reached DIM will fully rotate damper to get as close to set point as possible Air balance needs to be adjusted Sensor does not calibrate Sensor communications not working Check SENSOR STAT item in diagnostics menu If NORMAL is displayed sensor is okay if COMM ERROR is displayed check wiring pressure sensor address and that DIP switch 1 amp 2 are ON Figure 10 Incorrect pressure sensor address OFF OFF For Reference Space ON for Controlled Space ON For Address 1 OFF For Address 1 OFF OFF OFF OFF OFF OFF Pressure Sensor Figure 10 Pressure Sensor DIP Switch Pressure sensor must have address of 1 Check pressure sensor DIP switches 5 amp 6 and verify address 1 is correct 7 12 must be OFF Pressure sensor red LED is blinking Figure 8 Problem with sensor slow uniform blink Communication fast burst of non uniform blinking Red LED is con
52. e changes CHECK Flow station The Flow Check menu lists all the flow stations that can be installed Check each flow station menu item that has a flow station attached Enter __ FLOW IN menu item and the actual flow will be displayed If the flow is correct no changes need to be made If flow is incorrect recalibrate until actual flow matches flow station reading If unit passed all checks the mechanical components are physically working 62 Part Two Calibration The calibration section explains how to calibrate and set the elevation for the AOC pressure sensor and how to calibrate a flow station NOTE The pressure sensor is factory calibrated and normally does not need to be adjusted However inaccurate readings may be detected if pressure sensor is not installed correctly or problems with the sensor exist Before calibrating check that the sensor is installed correctly usually only a problem on initial set up In addition go into DIAGNOSTICS menu SENSOR STAT item If NORMAL is displayed calibration can be adjusted If an error code is displayed eliminate error code and then verify pressure sensor needs adjustment Adjusting the SureFlow pressure sensor calibration may be required to eliminate errors due to convection currents HVAC configuration or equipment used to make the measurement TSI recommends always taking the comparison measurement in the exact same location i e under the door middle of door edge of door
53. een 0 OPEN and 100 OPEN will be shown on the display indicating the control output value Pressing the A V keys change the count on the display Pressing the A key increases the displayed value while pressing the W key decreases the displayed value The supply air damper or VAV box should change modulate as the number changes Depending on the actuator s jumper position 0 OPEN or 100 OPEN is full open on damper Conversely 100 OPEN or 0 OPEN will be full closed A value of 50 OPEN should position the damper approximately 1 2 open On units controlling variable frequency drives fan speed should increase or decrease as numbers change The CONTROL EXH item manually changes the control output signal to the exhaust air actuator damper or motor speed drive When this item is entered a number between 0 OPEN and 100 OPEN will be shown on the display indicating the control output value Pressing the A V keys change the count on the display Pressing the A key increases the displayed value while pressing the W key decreases the displayed value The exhaust air damper or VAV box should change modulate as the number changes Depending on the actuator s jumper location 0 OPEN or 100 OPEN is full open on damper Conversely 100 OPEN or 0 OPEN will be full closed A value of 50 OPEN should position the damper approximately 1 2 open On units controlling variable frequency drives fan speed should increase or decrease as numbers change wo
54. ess on 1 to 127 1 ADDRESS the MS TP BACnet network This address must be unique for each device on the BACnet network MAC ID MAC ID The MAC ID menu item sets the first 3 digits of the 0 to 999 868 BACnet device number The BACnet device number is the MAC ID combined with the MAC address For example if the MAC ID is 868 and the MAC address is 003 the device number is 868003 ANALOG OUTPUT The OUTPUT RANGE item selects the resolution range of LOW or HIGH HIGH PRESSURE RANGE the linear analog pressure signal output menu item SIGNAL OUTPUT PRESS AOUT There are 2 choices RANGE LOW 0 01000 to 0 01000 in H20 or 500 to 500 FPM or 2 5 to 2 5 m s or 25 to 25 Pa HIGH 0 10000 to 0 10000 in H20 or 1000 to 1000 FPM or 5 0 to 5 0 m s or 50 to 50 Pa 0 volt 4 mA represents maximum negative pressure differential 5 volts 12 mA represents a 0 room pressure differential 10 volts 20 mA represents maximum positive pressure differential If the actual pressure exceeds the range the output remains at maximum or minimum depending on direction of flow The AOC updates the analog output every 0 1 second NOTE The units displayed for OUTPUT RANGE values are determined by the UNITS menu item in the CONFIGURE MENU aN AK OM Wed INTERFACE MENU continued OUTPUT SIGNAL OUTPUT SIG The OUTPUT SIG item selects the type of analog output 0 to 10 VDC or 0 to 10 VDC signal either 0 10 VDC or 4 20 mA This item changes
55. essure remote and flow alarms The MUTE TIMEOUT item sets the length of time the audible alarm is off for all pressure and flow alarms 8 The display can only show one alarm message Therefore the controller has an alarm priority system with the highest priority alarm being displayed If multiple alarms exist the lower priority alarms will not display until after the highest priority alarm has been eliminated The alarm priority is as follows Pressure sensor low alarm Pressure sensor high alarm Low supply flow alarm Low exhaust flow alarm Data error The low and high pressure alarms are absolute values The chart below shows how the values must be programmed in order to operate correctly 0 2 inches HO 0 0 2 inches H2O maximum negative maximum positive High Negative Low Zero Low Positive High Negative Setpoint Negative Positive Setpoint Positive Alarm Alarm Alarm Alarm The value of each set point or alarm is unimportant except for small dead band in graph above It is important to understand that the negative positive low alarm must be between zero 0 pressure and the negative positive set point and that the high alarm is a greater negative positive value than set point uoldeS eoIUYyde ee CONFIGURE MENU DISPLAY UNITS UNITS GENERAL EXH EXHAUST DUCT CONFIG CONFIGURATION ACCESS CODES The UNITS item selects the unit of measure that the DIM FT MIN m s in H20 displays all values e
56. et 0 to 0 19000 in H2O point The SureFlow controller will maintain the room or pressure at the alternate set point when this item is 0 to 0 19000 in H2O enabled This item is enabled when the REMOTE SWT contact closure pins 3 and 4 is closed or the RS 485 communications sends a command NOTE The REM SET POINT disables the ALARM DELAY 0 00100 H20 uoldeS jedIUYydE Sl SET POINTS MENU continued VENTILATION MINIMUM SUPPLY FLOW SET POINT VENT MIN SET The VENT MIN SET item sets the ventilation supply airflow set point This item provides a minimum supply air flow to meet the ventilation requirement by preventing the supply flow from going below the preset minimum flow The controller will not allow the supply air damper to be closed further than the VENT MIN SET set point If room pressure is not maintained at minimum supply flow the general exhaust damper modulates open until pressure set point is reached provided offset is between MIN OFFSET and MAX OFFSET 0 to 30 000 CFM 0 to 14 100 l s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m SPACE COOLING SUPPLY FLOW SET POINT COOLING FLOW The COOLING FLOW item sets the space cooling supply airflow set point CFM This item defines a supply air flow intended to meet the space s cooling requirements by allowing the supply flow to increase gradually to the COOLING FLOW set
57. etc A thermal air velocity meter is needed to make the comparison measurement Normally the velocity is checked at the crack under the doorway or the door is opened 1 to allow alignment of the air velocity probe making the measurement If the crack under the door is not large enough use the 1 open door technique All pressure transducer based flow stations and 1 to 5 VDC linear flow stations must be zeroed upon initial system set up Linear 0 to 10 VDC flow stations do not require a zero flow to be established Calibrating Pressure Sensor Enter calibration menu see Software Programming if not familiar with keystroke procedure Access code is turned on so enter access code All menu items described below are found in CALIBRATION menu Elevation The ELEVATION item eliminates pressure sensor error due to elevation of building See ELEVATION item in Menu and Menu items section for further information Enter the ELEVATION menu item Scroll through the elevation list and select the one closest to the building s elevation Press the SELECT key to save the data and exit back to the calibration menu Pressure Sensor Figure 8 Pressure Sensor Door Slid Open Technical Section 63 Sensor span Perform a smoke test to determine pressure direction Select SENSOR SPAN item Position thermal air velocity meter in door opening to obtain velocity reading Press A keys until pressure direction and sensor spa
58. f the menu item The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu 0 to 10 000 CFM Setup Checkout The AOC is easy to program and setup This section covers the theory of operation required software programming a programming example and how to verify checkout that the components are functioning correctly The AOC uses a unique control sequence that combines flow and pressure differential measurements to maintain air balance and laboratory pressure while interfacing with a temperature sensor to maintain laboratory temperature The overall AOC control sequence seems quite complicated initially but the Theory of Operation section breaks the sequence into sub sequences which simplifies the total system Theory of Operation The AOC control system requires the following measurement inputs to function correctly e General exhaust flow s measured with a flow station s if general exhaust is installed e Fume hood exhaust flow measured with a flow station total hood s flow is required e Supply air flow s measured with a flow station s e Temperature measured with a thermostat if temperature is incorporated into sequence e Pressure differential with a TSI pressure sensor if pressure is incorporated into sequence Laboratory air balance Laboratory air balance is maintained by measur
59. g maintained the AOC modulates the supply or exhaust air until pressure is maintained I T ne 2 lt 3 5 lt lt Room Room Negative Positive Figure 1 Room Pressure Negative room pressure is present when air flows from a hallway into the laboratory If air flows from the laboratory into the hallway the room is under positive pressure Figure 1 gives a graphic example of positive and negative room pressure An example of negative pressure is a bathroom with an exhaust fan When the fan is turned on air is exhausted out of the bathroom creating a slight negative pressure when compared to the hallway This pressure differential forces air to flow from the hallway into the bathroom The SureFlow device informs the laboratory users when the laboratory is under proper pressure and provides alarms when the room pressure is inadequate If the room pressure is in the safe range a green light is on If the pressure is inadequate a red alarm light and audible alarm turn on The SureFlow controller consists of three pieces pressure sensor Digital Interface Module DIM and Adaptive Offset Controller AOC The components are typically located as follows pressure sensor above the laboratory entrance DIM is mounted close to laboratory entrance and the AOC in the ceiling space near the laboratory entrance The pressure sensor continuously measures the room pressure and provides room pressure informa
60. hardware components need to be installed properly Review the installation instructions and verify components are installed properly at the correct location This is easily done when the wiring is checked Verifying mechanical components Verifying all TSI components are operating correctly requires following a simple procedure The fastest procedure to confirm all equipment is operating is to first test the DIM and then go into the diagnostic menu to test each component NOTE These tests require power to the units so if unit has no power refer to hardware troubleshooting chart to eliminate power problem TEST DIM Press TEST key to verify Digital Interface Module DIM electronics are functioning correctly At the end of the self test the display will show SELF TEST PASSED if all DIM electronics are good If unit displays DATA ERROR at the end of the test the electronics may be corrupted Check all software items to determine cause of DATA ERROR If SELF TEST PASSED is displayed proceed to test individual components Enter Diagnostics Menu and check the following e Control output supply e Control output exhaust e Control output temperature e Sensor input e Sensor status e Temperature input NOTE Skip any test that does not have option installed 70 Part Two These diagnostic menu items are explained in detail in the next section Diagnostics Menu of the manual so their function is not reviewed here If
61. ill confirm all hardware is performing correctly The checkout procedure is not difficult and will catch any hardware problems The steps are as follows Confirm wiring is correct The most common problem with installed hardware equipment is incorrect wiring This problem usually exists on initial installation or when modifications to the system takes place The wiring should be very closely checked to verify it exactly matches the wiring diagram Polarity must be observed for system to operate correctly The TSI provided cables are all color coded to ensure proper wiring A wiring diagram is located in Appendix C of this manual Wiring associated with non TSI components should be closely checked for correct installation Confirming physical installation is correct All of the hardware components need to be installed properly Review the installation instructions and verify components are installed properly at the correct location This can be easily confirmed when checking the wiring Verifying individual components Verifying all TSI components are operating correctly requires following a simple procedure The fastest procedure involves first checking the DIM and then confirming all component parts are functioning NOTE These checks require power to the AOC and all components CHECK DIM Press TEST key to verify Digital Interface Module DIM electronics are functioning correctly At the end of the self test the display will show SEL
62. ing the total fume hood exhaust or other exhaust subtracting an offset flow from the fume hood total and then setting the supply air damper s to maintain the offset between supply air and fume hood exhaust The general exhaust damper is normally closed except when room pressure cannot be maintained This may occur when the fume hood sashes are all down and the supply air is at a minimum position The general exhaust damper opens to maintain the required offset and pressure differential Pressure control The pressure differential signal is sent to the AOC assumption laboratory is under negative pressure If pressure is at set point the control algorithm does nothing If pressure is not at set point the offset value is changed until pressure is maintained or the minimum or maximum offset value is reached If the offset value increases the supply air is reduced until one of three events occur e Pressure set point is reached The AOC maintains the new offset e The offset range is exceeded The offset will be at maximum attempting to reach pressure set point An alarm will trigger to inform you pressure differential is not being maintained e Supply air minimum is reached The general exhaust begins to open was closed to maintain pressure differential decreases the supply air increases until one of three events occur e Pressure set point is reached The AOC maintains the new offset e The offset range is exceeded The offset wil
63. ing these contacts puts the unit into Emergency Mode Set points will not be maintained in Emergency Mode 25 26 Output High alarm relay N O closes in high alarm condition See menu item HIGH ALARM See menu item REM SET POINT 24 VAC to power Adaptive Offset Controller AOC NOTE 24 VAC becomes polarized when connected to AOC 38 39 RS 485 communications AOC to building management system Modbus or N2 40 41 RS 485 communications AOC to DIM 42 43 Communications LonWorks communications to building management system optional BACnet MSTP communications to building management system 8682 BAC 95 44 45 Output 0 10 VDC reheat valve control signal 10 VDC open n o damper See menu item REHEAT SIG 46 47 Output 0 10 VDC supply air control signal 10 VDC open n o damper See menu item CONTROL SIG 48 49 Output 0 10 VDC general exhaust control signal 10 VDC open n o damper See menu item CONTROL SIG See menu item OUTPUT SIG See menu item OUTPUT SIG See menu item MIN SUP ALM High exhaust flow alarm relay N O closes in low flow condition See menu item MAX EXH ALM 96 Appendix C FLOW STATION WIRING PINS 5 18 amp 21 28 TRANSFORMER P N 800420 INPUT POWER 120 60 1 PRESSURE TRANSDUCER P N 804139 24 VAC OUT TRANSFORMER CABLE P N 800414 ie i CONTROL OUTPUT CABLE P N 800199 SUPPLY 3 DIGITAL INPUT 1 FUME HOOD EX 1 FUME
64. isplay Pressing the A key should increase the analog output Pressing the W key will decrease the analog output The SUPPLY AOUT function used in conjunction with a volt meter will verify the individual analog output is operating correctly A e OM Hed DIAGNOSTICS MENU continued EXHAUST EXHAUST ANALOG OUTPUT AOUT RESET THE RESET TO CONTROLLER TO DEF FACTORY DEFAULT SETTINGS END OF MENU The EXHAUST AOUT item is used to verify the analog outputs are working When this item is entered the number shown on the display indicates the last analog output value The value displayed ranges from 0 to 255 The value 255 corresponds to 0 volts 4 mA output and 0 corresponds to 10 volts 20 mA output Pressing the A V keys change the count on the display Pressing the A key should increase the analog output Pressing the W key will decrease the analog output The EXHAUST AOUT function used in conjunction with a volt meter will verify the individual analog output is operating correctly When this menu item is entered the 8682 will prompt the user to verify that they want to do this by indicating NO Use the A keys change the display to YES then press the SELECT key to reset the controller to its factory defaults Pressing the MENU key before the SELECT key will exit out of the menu item The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELE
65. ither automatically turn off when the unit returns to the safe range or to stay in alarm until the RESET key is pressed See ALARM RESET Before Calling TSI This manual should answer most questions and resolve most problems you may encounter If you need assistance or further explanation contact your local TSI representative or TSI TSI is committed to providing high quality products backed by outstanding service Please have the following information available prior to contacting your authorized TSI Manufacturer s Representative or TSI e Model number of unit 8682 e Software revision levels e Facility where unit is installed First three items that scroll when TEST key is pressed Due to the different SureFlow models available the above information is needed to accurately answer your questions For the name of your local TSI representative or to talk to TSI service personnel please call TSI at 800 874 2811 U S and Canada or 001 651 490 2811 other countries Prior to shipping any components to TSI for service or repair please utilize our convenient Return Material Authorization RMA Form which is available online at http service tsi com 6 Part One PART TWO Technical Section The AOC is ready to use after being properly installed The pressure sensor is factory calibrated prior to shipping and should not need adjustment The flow stations must be calibrated prior to using them The Digital Interface Mod
66. l Interface Module indicates the laboratory is now 0 0002 in H2O not negative enough The AOC algorithm slowly changes the offset until pressure control is maintained In this case the offset changes to 400 CFM which decreases the supply volume by 100 CFM The additional offset maintains the pressure differential at 0 001 in H2O set point Fume hoods General exhaust Offset Supply air 2 500 0 400 2 100 The hoods are shut after the experiments are loaded so the initial conditions prevail Fume hoods General exhaust Offset Supply air 1 000 200 300 900 An oven is turned on and the laboratory is getting warm The temperature sensor sends the AOC a signal to switch to temperature minimum ventilation COOLING FLOW This increases the supply air to 1 200 CFM The general exhaust air must also increase damper opens to maintain flow balance Fume hoods General exhaust Offset Supply air 1 000 500 300 1 200 Three fume hoods are opened so the fume hood flow is now 3 250 CFM In order to maintain air balance the general exhaust and supply air change to Fume hoods General exhaust Offset Supply air 3 250 0 300 2 950 The control loop continuously keeps the room balance room pressure and temperature control satisfied 60 Part Two Checkout The AOC controller should have the individual components checked prior to attempting control of the laboratory The checkout procedure outlined below w
67. l Without With Ack Message Any Change Of Status Is Returned Read Analog Input Command Variable Value Read Binary Input Command Variable Value Read Analog Output Command Variable Value Write Analog Input Acknowledge Write Binary Input Acknowledge Write Analog Output Acknowledge Override Analog Input Command Acknowledge Override Binary Input Command Acknowledge Override Analog Output Command Acknowledge Override Release Request Acknowledge Identify Device Type Command Returns 0x10h Note Poll Without With Ack Message will need to be sent twice in order to receive all of the possible change of status variables Variable Map Al 1 ft min m s Room Pressure Value in H2O Pa 2 Al 2 Current Offset Al Current Temperature Al Minimum Supply Set point Al Total Hood Exhaust Al l6 CFM V s__ Total Auxiliary Exhaust Al Total Supply Al 8 CFM I s_ Total Exhaust Al 9 CFM Vs_ Hood 1 Flow Al Hood 2 Flow Al Hood 3 Flow Al Hood 4 Flow Al Hood 5 Flow Al Hood 6 Flow Al Hood 7 Flow Al Auxiliary Exhaust 1 Flow Al Auxiliary Exhaust 2 Flow Al Supply 1 Flow Al Supply 2 Flow Al Supply 3 Flow Al Supply 4 Flow Al Supply Control Output Al Exhaust Control Output Al Temp Control Output BI 1 Low Pressure Alarm 0 Normal 1 Low Alarm 86 Appendix B AO AO AO AO AO AO AO AO AO AO AO AO AO AO AO 2 High Pressure Alarm 0 Normal 1 High Alarm 3 Min Supply Flow Alarm 0 Norm
68. l be at minimum attempting to reach pressure set point An alarm will trigger to inform you pressure differential is not being maintained Technical Section 55 e Supply air maximum is reached The alarm will trigger to inform you pressure differential is not being maintained NOTE The pressure differential is a slow secondary control loop The system initially starts with a calculated offset value and then slowly adjusts the offset value to maintain pressure differential Temperature control The Model 8682 receives a temperature input from a temperature sensor 1000 Q Platinum RTD The Model 8682 controller maintains temperature control by 1 Controlling supply and general exhaust for ventilation and cooling 2 Controlling the reheat coil for heating The Model 8682 has three supply flow minimum set points The ventilation set point VENT MIN SET is the minimum flow volume required to meet ventilation needs of the laboratory ACPH The temperature supply set point COOLING FLOW is the theoretical minimum flow required to meet cooling flow needs of the laboratory The unoccupied set point UNOCC SETP is the minimum flow required when the lab is not occupied All of these set points are configurable If the Model 8682 is in the Unoccupied Mode the controller will control the supply air flow to the UNOCCUPY SET ventilation rate the supply flow will not be modulated for space cooling space temperature control will be maintained by mo
69. larm set point to 0 003 inches H20 Press the SELECT key to save the new negative high alarm set point Three short beeps will sound indicating that the data is being saved Immediately after the data is saved the SureFlow controller returns to the menu level displaying the menu title on the top line of the display and the menu item on the bottom line goes to step 4 PRESSURE 00100 H2O MENU SET POINTS ALARM TEST SELECT ALARM LOW ALARM RESET ALARM HIGH ALARM HE TEST SELECT HIGH ALARM 00200 H2O RESET HIGH ALARM 00300 H20 E TEST SELECT HIGH ALARM Saving Data ALARM HIGH ALARM Part Two Press the MENU key once to return to the menu level sie ALARM CONFIGURE Press the MENU key a second time to return to the normal operating level MENU Unit is now back in normal operation PRESSURE 00100 H2O Technical Section Menu and Menu Items The SureFlow controller is a very versatile device which can be configured to meet your specific application This section describes all of the menu items available to program and change Changing any item is accomplished by using the keypad or if communications are installed through the RS 485 Communications port If you are unfamiliar with the keystroke procedure see Programming Software for a detailed explanation This section provides the following information Complete list of menu and all menu item
70. m The EXH SET POINT is a diagnostic value item used to compare the actual EX1 FLOW IN and EX2 FLOW IN to the calculated flow they should match within 10 This is a system information only menu item no programming is possible The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu uoldeS eoIUYydE Ge FLOW CHECK MENU INDIVIDUAL SP1 FLOW SUPPLY AIR IN FLOW SP2 FLOW IN SP3 FLOW IN SP4 FLOW IN INDIVIDUAL EX1 FLOW GENERAL IN EXHAUST FLOW EX2 FLOW IN The SP FLOW IN menu item displays the current supply NONE air flow This item is a diagnostics tool used to compare NONE Read only the supply flow to a traverse of the duct work If flow error value is greater than 10 calibrate the flow station In addition summing SP1 FLOW IN through SP4 FLOW IN should equal TOT SUP FLOW When a volt meter is hooked to the flow station output a voltage should be displayed The exact voltage displayed is relatively unimportant It is more important that the voltage is changing which indicates the flow station is working correctly The EX FLOW IN menu item displays the current NONE exhaust flow from a general exhaust This item is a NONE Read only diagnostics tool used to compare the general exhaust flow value to a traverse of the duct work If flow error is greater than 10 calibrate the flow st
71. m pressure reaches 0 001 inches H2O When the room pressure drops below 0 001 inches H2O gets closer to zero the audible and visual alarms activate The alarms turn off when set to unlatched when the unit returns to the safe range which is defined as negative pressure greater than 0 001 inches H20 Visual Alarm Operation The red light on the front of the unit indicates an alarm condition The red light is on for all alarm conditions low alarms high alarms and emergency The light is on continuously in a low or high alarm condition and flashes in an emergency condition User Basics 5 Audible Alarm Operation EMERGENCY key When the EMERGENCY key is pressed the audible alarm beeps intermittently until the EMERGENCY or RESET key is pressed terminating the emergency alarm The emergency alarm cannot be silenced by pressing the MUTE key Audible Alarms All Except Emergency The audible alarm is continuously on in all low and high alarm conditions The audible alarm can be temporarily silenced by pressing the MUTE key The alarm will be silent for a period of time see MUTE TIMEOUT to program time period When the time out period ends the audible alarm turns back on if the alarm condition is still present You can program the audible alarm to be permanently turned off see AUDIBLE ALM The red alarm light will still turn on in alarm conditions when audible alarm is turned off The audible and visual alarms can be programmed to e
72. m sets the high pressure alarm set point A high alarm condition is defined as when the room pressure rises above the HIGH ALARM set point The REM LOW ALM item sets a remote or second low pressure alarm set point A remote low alarm condition is defined as when the room pressure falls below or goes in the opposite direction of the REM LOW ALM set point This item is enabled when the REMOTE SWT contact closure pins 3 and 4 is closed or the RS 485 communications sends a command OFF 0 to 0 18500 in HzO 0 to 0 18500 in H2O OFF 0 to 0 18500 in HzO 0 to 0 18500 in H2O OFF 0 to 0 18500 in HzO 0 to 0 18500 in H2O ALARM MENU continued uoldeS edIUYde REMOTE OR REM HIGH The REM HIGH ALM item sets a remote or second high OFF OFF ALTERNATE ALM pressure alarm set point A high alarm condition is defined 0 to 0 18500 in H2O HIGH as when the room pressure rises above the REM HIGH 0 to 0 18500 in PRESSURE ALM set point H20 ALARM This item is enabled when the REMOTE SWT contact closure pins 3 and 4 is closed or the RS 485 communications sends a command MINIMUM MIN SUP The MIN SUP ALM item sets the supply flow alarm set 0 to 29 950 CFM OFF SUPPLY FLOW ALM point A minimum flow alarm is defined as when the supply 0 to 14 125 l s ALARM duct flow is less than the MIN SUP ALM set point Linear based flow NOTE Supply air duct size s SP DCT AREA Supply stations 0 to TOP Flow menu must be entered before MIN
73. mmunications sends a command When switch input is open VENT MIN SET and COOLING FLOW are enabled and UNOCCUPY SET is disabled The MAX SUP SET item sets the maximum supply air flow into the laboratory The controller will not allow the supply air damper to open further than the MAX SUP SET flow set point NOTE The laboratory may not hold pressure set point when supply air is limited 0 to 30 000 CFM 0 0 to 14 100 l s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m 0 to 30 000 CFM OFF 0 to 14 100 l s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m uoldes edIUYyde ZI SET POINTS MENU continued MINIMUM EXHAUST FLOW SET POINT MINIMUM FLOW OFFSET MAXIMUM FLOW OFFSET TEMPERATURE SET POINT UNOCCUPIED TEMPERATURE SET POINT MIN EXH SET MIN OFFSET MAX OFFSET TEMP SETP UNOCC TEMP The MIN EXH SET item sets the minimum general exhaust air flow out of the laboratory The controller will not allow the general exhaust air damper to close further than the MIN EXH SET flow set point NOTE The laboratory may not hold pressure set point when general exhaust air is constrained The MIN OFFSET item sets the minimum air flow offset between total exhaust flow fume hood general exhaust other exhaust and total supply flow The MAX OFFSET item sets the maximum air flo
74. n either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu uoloeS eoIUYyde 6t EXHAUST FLOW MENU GENERAL EXHAUST DUCT SIZES EX1 DCT AREA EX2 DCT AREA The EX DCT AREA item inputs the general exhaust duct size The duct size is needed to compute the total general exhaust flow out of the laboratory This item requires a flow station to be mounted in each general exhaust duct If the DIM displays English units area must be entered in square feet If metric units are displayed area must be entered in square meters 0 to 10 square feet 0 to 0 9500 square meters The DIM does not compute duct area The area must be first calculated and then entered into the unit EXHAUST FLOW STATION ZERO FLOW STATION TYPE EX1 FLO ZERO EX2 FLO ZERO FLO STA TYPE The EX FLO ZERO item establishes the flow station zero flow point A zero or no flow point needs to be established in order to obtain a correct flow measurement output see Calibration section All pressure based flow stations need to have an EX FLO ZERO established on initial set up Linear flow stations with a 1 5 VDC output also need to have an EX FLO ZERO established Linear flow stations with a 0 5 VDC output do not need a EX FLO ZERO The FLO STA TYPE item is used to select the flow station input signal PRESSURE is selected when TSI flow stations with pressure transducers are installed LINE
75. n match thermal air velocity meter and smoke test Press SELECT key to save sensor span Exit menu calibration is complete continued on next page 64 Part Two Flow Station Pressure Transducer Zero NOTE Not required for linear flow stations with 0 to 10 VDC output Pressure based flow station Disconnect tubing between pressure transducer and flow station Enter menu that corresponds to flow station Supply Flow Exhaust Flow or Hood Flow Select SP FLO ZERO to take a supply flow station zero Select EX FLO ZERO to take a general exhaust flow station zero Select HD FLO ZERO to take a fume hood flow station zero Press SELECT key Flow zero procedure which takes 10 seconds is automatic Press SELECT key to save data Connect tubing between pressure transducer and flow station NOTE insert number of flow station you are performing a zero on Linear flow station 1 5 VDC output Remove flow station from duct or cutoff flow in duct Flow station must have no flow going past the sensor Enter menu that corresponds to flow station location Supply Flow Exhaust Flow or Hood Flow Select SP FLO ZERO to take a supply flow station zero Select EX FLO ZERO to take a general exhaust flow station zero Select HD FLO ZERO to take a fume hood flow station zero Press SELECT key Flow zero procedure which takes 10 seconds is automatic Press SELECT key to save data Install flow station back in duct NOTE
76. nd 100 OPEN will be displayed Press the A F keys until either 0 OPEN or 100 OPEN shows on the display Note the position of the reheat valve If display reads 0 OPEN press the A key until 100 OPEN is shown on display If display read 100 OPEN press key until 0 OPEN is shown on display Note the position of the reheat valve The damper should have moved through its full stroke If not see hardware section Control system is not controlling Reheat valves typically move slowly so you may have to wait to see the full motion TEST Sensor input Enter SENSOR INPUT menu item in diagnostics menu A voltage between 0 and 10 volts DC will be displayed It is not important what the exact voltage is to pass this test Tape over the pressure sensor slide pressure sensor door open and voltage should read approximately 5 volts zero pressure Remove tape and blow on sensor Displayed value should change If voltage changes the unit passes If voltage doesn t change proceed to TEST Sensor status TEST Sensor status Enter SENSOR STAT menu item in diagnostics menu If NORMAL is displayed the unit passes test If an error message is displayed go to diagnostics menu section of the manual SENSOR STAT menu item for explanation of error message Technical Section 71 TEST Temp input Enter TEMP INPUT menu item in diagnostics menu A temperature will be displayed The exact temperature displayed is not important as long as the tempera
77. nput 1 Exhaust 2 Flow 19 Flow measured by flow station Displayed in CFM connected to general exhaust input 2 Supply 1 Flow 20 Flow measured by flow station Displayed in CFM connected to supply flow input 1 Supply 2 Flow 21 Flow measured by flow station Displayed in CFM connected to supply flow input 2 82 Appendix B Supply 3 Flow 22 Flow measured by flow station Displayed in CFM connected to supply flow input 3 Supply 4 Flow 23 Flow measured by flow station Displayed in CFM connected to supply flow input 4 Pressure Set point 24 Pressure control set point Displayed in ft min Min Vent Set point 25 Minimum flow set point for Displayed in CFM ventilation Cooling Flow 26 Minimum flow set point for Displayed in CFM temperature control Unoccupied Min 27 Unoccupied Setback minimum flow Displayed in CFM Set point set point Low Alarm 28 Low pressure alarm set point Displayed in ft min High Alarm 29 High pressure alarm set point Displayed in ft min Min Supply Alarm 30 Minimum supply flow alarm Displayed in CFM Max Exhaust Alarm 31 Maximum general exhaust alarm Displayed in CFM Min Offset Set point 32 Minimum offset set point Displayed in CFM Max Offset Set 33 Maximum offset set point Displayed in CFM point Max Supply Set 34 Maximum supply set point Displayed in CFM point Min Exhaust Set 35 Minimum exhaust set point Displayed in CFM p
78. nu Item will only appear as a menu option for the Model 8682 Adaptive Offset Controller that includes an optional Lon Works or BACnet board The Menu Items NET PROTOCOL and NET ADDRESS will be deleted as menu options on Model 8682 Adaptive Offset Controllers that include either the optional Lon Works or BACnet board The BALANCER FLO menu is only available on the TSI Model 8682 BAC Adaptive Offset Controller Technical Section Figure 5 Menu Items Model 8682 Controller A OM Hed SET POINTS MENU PRESSURE SET POINT REMOTE OR ALTERNATE PRESSURE SET POINT SET POINT REM SET POINT The SET POINT item sets the pressure control set point 0 to 0 19000 in HzO The SureFlow controller will maintain this set point or negative or positive under normal operating conditions 0 to 0 19000 H2O Pressure differential is not maintained by direct pressure control i e modulating dampers in response to pressure changes The pressure signal is an AOC input that is used to calculate the required air flow offset value The calculated offset value changes the supply or exhaust flow volume which changes the pressure differential When the calculated offset value is between the MIN OFFSET and MAX OFFSET room pressure control can be maintained If the offset required to maintain pressure is less than the MIN OFFSET or greater than MAX OFFSET pressure control will not be maintained The REM SET POINT item sets an alternate control s
79. nu items and adjust accordingly until performance is adequate Turn DIM to emergency If pressure stabilizes this is not the problem Verify reference pressure is not fluctuating Check location of supply air diffusers and exhaust grilles They should be as far from pressure sensor as is realistic 6 feet preferred 2 1 2 feet minimum Supply diffuser terminal throw velocity must be less than 10 ft min at the sensor Relocate supply or exhaust as needed Temperature not controlling Incorrect wiring No control output signal Bad actuator valve doesn t move Valve rotating opposite direction Verify correct wiring see wiring diagram Appendix C DIM and AOC panel must be wired exactly as shown Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 OPEN and 100 OPEN will be displayed Pressing the A key increases the number Pressing the W key decreases the number Measure the DC voltage between pins 44 and 45 46 and 47 for exhaust on the AOC panel Change the CONTROL value about 40 The voltage output should change approximately 4 volts Change the CONTROL value to 60 OPEN The voltage should read approximately 5 VDC If no change occurs disconnect control wires on pins 25 and 26 and repeat test If DIM still fails to change voltage output DIM is probably defective Go into DIAGNOSTICS menu CONTROL TEMP A number between 0 OPEN and 100 OPEN will be displayed Pressing
80. oing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE WITH RESPECT TO SELLER S BREACH OF THE IMPLIED WARRANTY AGAINST INFRINGEMENT SAID WARRANTY IS LIMITED TO CLAIMS OF DIRECT INFRINGEMENT AND EXCLUDES CLAIMS OF CONTRIBUTORY OR INDUCED INFRINGEMENTS BUYER S EXCLUSIVE REMEDY SHALL BE THE RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR AND TEAR OR AT SELLER S OPTION REPLACEMENT OF THE GOODS WITH NON INFRINGING GOODS TO THE EXTENT PERMITTED BY LAW THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE LIMIT OF SELLER S LIABILITY FOR ANY AND ALL LOSSES INJURIES OR DAMAGES CONCERNING THE GOODS INCLUDING CLAIMS BASED ON CONTRACT NEGLIGENCE TORT STRICT LIABILITY OR OTHERWISE SHALL BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE PRICE OR AT THE OPTION OF SELLER THE REPAIR OR REPLACEMENT OF THE GOODS IN THE CASE OF SOFTWARE SELLER WILL REPAIR OR REPLACE DEFECTIVE SOFTWARE OR IF UNABLE TO DO SO WILL REFUND THE PURCHASE PRICE OF THE SOFTWARE IN NO EVENT SHALL SELLER BE LIABLE FOR LOST PROFITS OR ANY SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION DISMANTLING OR REINSTALLATION COSTS OR CHARGES No Action regardless of form may be brought against Seller more than 12 months after a cause of action has accrued The goods returned under warrant
81. oint Temp Set point 36 Temperature set point Displayed in F Unoccupied Temp 55 Unoccupied Setback temperature Displayed in F Set point set point Supply Damper 64 Current damper position for supply 0 to 100 Position control Exhaust Damper 65 Current damper position for exhaust 0 to 100 Position control Reheat Valve 66 Current valve position for 0 to 100 Position temperature control Units 106 Current pressure units displayed Feet per minute meters per second 0 1 2 inches of H2O 3 Pascal Note Items in italics are read only variables Network Modbus Communications 83 EXAMPLE of 16 10 Hex Preset Multiple Regs function format This example changes the minimum ventilation set point to 1000 CFM QUERY Field Name Slave Address Function Starting Address Hi Starting Address Lo No Of Registers Hi No Of Registers Lo Data Value High Data Value Low Error Check CRC RESPONSE Field Name Slave Address Function Starting Address Hi Starting Address Lo No of Registers Hi No of Registers Lo Error Check CRC Example of 03 Read Holding Registers function format This example reads the total supply and total exhaust QUERY Field Name Slave Address Function Starting Address Hi Starting Address Lo No Of Registers Hi No Of Registers Lo Error Check CRC 84 RESPONSE Field Name Slave Address Function Byte Count Data Hi Data Lo Data Hi Data Lo Error Che
82. oints are zero alarm relay is not active so relay will not be required to change state Check the wiring from SureFlow controller relay s output to the device that is connected to the relays Disconnect the DIM wiring from relay contact pins 13 and 14 for low alarm relay and pins 25 and 26 for high alarm relay Go into DIAGNOSTICS menu LOW ALM REL or HIGH ALM REL Connect an ohmmeter to relay terminals to verify contact open and closes Press the A V keys to manually trip the relay If relay responds contact opens and closes the device connected is incompatible or defective If relay doesn t respond relay is defective may be caused by incompatible device Replace DIM DATA ERROR flashing on display DIM was hit by electrical disturbance All data may be lost or changed Review all configuration parameters DATA ERROR is removed by pressing the RESET key Actuator hunting Display indicates steady pressure Control system is unstable Go into CONTROL menu SPEED item Turn speed down until hunting is eliminated If speed is too slow review CONTROL menu items and adjust accordingly to eliminate hunting 76 Part Two Displayed pressure wildly fluctuating Control system is unstable Exhaust system unstable Supply or exhaust air is affecting the sensor Go into CONTROL menu SPEED item turn speed down until fluctuation is eliminated If speed is too slow review CONTROL me
83. oller from emergency state override a 0 to the Emergency input or press either the emergency or reset key Releasing the override will return the controller to the Normal state The alarm and data error variables can be overridden but this will not affect the controller Overriding the low alarm variable will result in a change of status but will not put the controller into low alarm mode The local alarm modes can only be controlled locally Only override these variables for diagnostic purposes and release them for normal operation Binary Input Data Error Data Error binary inputs are used to indicate if something has gone wrong with the controller Data Error indicates when some of the data stored on the device has been corrupted The calibration and set point values should be checked on the controller Override Analog Output Command The analog output variables can be overridden to change their values The overridden value will be checked for validity If invalid the override command will be ignored and the value will not change The override flag will not be set when the value is ignored The override command will be cleared when the variable is reset in the menus The variable will not reset with the release command Network Modbus Communications 85 Supported Commands Request Device ID Returns 0x10 Synchronize Time Command Acknowledged There Is No Internal Clock To Synchronize Pol
84. ously M ANSI X3 4 O IBM Microsoft DBCS O ISO 8859 1 O ISO 10646 UCS 2 O ISO 10646 UCS 4 O JIS C 6226 If this product is a communication gateway describe the types of non BACnet equipment networks s that the gateway supports Not Applicable Network Modbus Communications 91 Model 8682 BAC BACnet MS TP Object Set Analog Input 1 ft min m s Room Pressure in H20 Pa Analog Input 2 cfm l s Total Supply Flow Analog Input 3 cfm l s Total General Exhaust Flow Analog Input 4 cfm l s Total Hood Flow Analog Input 5 cfm I s Total Exhaust Flow Analog Input 6 cfm l s Supply 1 Flow Rate Analog Input 7 cfm l s Supply 2 Flow Rate Analog Input 8 cfm l s Supply 3 Flow Rate Analog Input 9 cfm l s Supply 4 Flow Rate Analog Input 10 cfm l s Exhaust 1 Flow Rate Analog Input 11 cfm l s Exhaust 2 Flow Rate Analog Input 12 cfm l s Hood 1 Flow Rate Analog Input 13 cfm I s Hood 2 Flow Rate Analog Input 14 cfm l s Hood 3 Flow Rate Analog Input 15 cfm l s Hood 4 Flow Rate Analog Input 16 cfm l s Hood 5 Flow Rate Analog Input 17 cfm l s Hood 6 Flow Rate Analog Input 18 cfm l s Hood 7 Flow Rate Analog Input 19 cfm l s Supply Flow Set Point Analog Input 20 cfm V s Sa Exhaust Flow Set Analog Input 21 cfm l s Current Flow Offset Analog Input 22 F C Temperature Analog Input 23 Open Su
85. out of menu function without saving data Press the MENU key to exit current menu and return to main menu Press the MENU key again to return to normal instrument operation If more than one item is to be changed skip steps 8 and 9 until all changes are complete If more items in the same menu are to be changed scroll to them after saving the data step 7 If other menus need to be accessed press the MENU key once to access list of menus The instrument is now at step 2 of the keystroke sequence Programming Example The following example demonstrates the keystroke sequence explained above In this example the high alarm set point will be changed from 0 002 inches H20 to 0 003 inches H20 Technical Section Unit is in normal operation scrolling room pressure flows etc Pressure is shown in this case Press the MENU key to gain access to the menus The first two menu choices are displayed Press the W key once Blinking cursor should be on A in Alarm Press the SELECT key to access the ALARM menu NOTE Blinking cursor must be on A in Alarm Line 1 shows menu selected Line 2 shows first menu item Press the W key once HIGH ALARM will be shown on display Menu selected Item name Press the SELECT key to access the high alarm set point The item name HIGH ALARM will now be displayed on line 1 and the item s current value will be displayed on line 2 Item Name Current Value Press the W key to change the high a
86. ply control wiring pins 44 and 45 goes to supply damper and exhaust control wiring pins 46 and 47 goes to general exhaust damper Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 OPEN and 100 OPEN will be displayed Pressing the A key increases the number Pressing the W key decreases the number To check the supply control output measure the DC voltage between pins 44 and 45 on the AOC panel To check the general exhaust control output measure the DC voltage between pins 46 and 47 on the AOC panel Change the CONTROL value about 40 The voltage output should change approximately 4 volts Change the CONTROL value to 59 OPEN The voltage should read approximately 5 VDC If no change occurs disconnect control wires on pins 44 and 45 or 46 and 47 and repeat test If AOC panel still fails to change voltage output AOC panel is probably defective Technical Section 73 Control system is not controlling continued Bad actuator or E P damper doesn t move Defective variable frequency drive VFD Damper rotating opposite direction Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 OPEN and 100 OPEN will be displayed Pressing the A key increases the number Pressing the W key decreases the number Change the CONTROL value to read 0 OPEN or 100 OPEN Note damper position Press an arrow key to change 0 OPEN to 100 OPEN or 100 OPEN to 0
87. pply Damper Position Analog Input 24 Open Exhaust Damper Position Analog Input 25 Open Reheat Valve Position Analog Value 1 MAC Address 1 to 127 Analog Value 2 ft min m s Room Pressure Set Point 0 19500 to 0 19500 in H2O Pa in H2O Analog Value 3 ft min m s Remote Pressure Set Point 0 19500 to 0 19500 in H2O Pa in H2O Analog Value 4 ft min m s Low Pressure Alarm 0 19500 to 0 19500 in H2O Pa in H2O Analog Value 5 ft min m s High Pressure Alarm 0 19500 to 0 19500 in H2O Pa in H2O Analog Value ft min m s Remote Low Pressure Alarm 0 19500 to 0 19500 6 in H2O Pa in H2O Analog Value ft min m s Remote High Pressure Alarm 0 19500 to 0 19500 7 in H2O Pa in H2O Analog Value 8 cfm l s Vent Min Set Point 0 to 30 000 cfm Analog Value 9 cfm l s Cooling Flow Set Point 0 to 30 000 cfm Analog Value 10 cfm l s Unocc Flow Set Point 0 to 30 000 cfm Analog Value 11 cfm l s Min Offset 0 to 30 000 cfm Analog Value 12 cfm l s Max Offset 0 to 30 000 cfm Analog Value 13 cfm l s Max Supply Set Point 0 to 30 000 cfm Analog Value 14 cfm l s Min Exhaust Set Point 0 to 30 000 cfm 92 Appendix B Analog Value 15 cfm l s Min Supply Alarm 0 to 30 000 cfm Analog Value 16 cfm l s Max Exhaust Alarm 0 to 30 000 cfm Analog Value 17 F C Temperature Set Point 50 to 85 F Analog Value 18 F C Unocc Temp Set Point 50 to 85 F Binary Value 1 Occ Unocc Mode 0 Occupie
88. pply low flow calibration 100 Open The SP HIGH SETP menu item sets the supply damper 0 Open to 100 OPEN position for the supply high flow calibration 100 Open The SP LOW CAL menu items display the currently measured supply flow rate and the calibrated value for that supply flow The supply dampers will move to the SP LOW SETP damper position for the low calibration The calibrated supply flow can be adjusted using the A V keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data The SP HIGH CAL menu items display the currently measured supply flow rate and the calibrated value for that supply flow The supply dampers will move to the SP HIGH SETP damper position for the low calibration The calibrated supply flow can be adjusted using the A V keys to make it match a reference measurement Pressing the SELECT key will save the new calibration data OM Hed SUPPLY FLOW MENU continued RESET CALIBRATION RESET CAL END OF MENU The RESET CAL menu item restores the default calibration for the 4 supply flows When this menu item is entered the 8682 will prompt the user to verify that they want to do this by indicating NO Use the A W keys change the display to YES then press the SELECT key to reset the calibrations Pressing the MENU key before the SELECT key will exit out of the menu item The END OF MENU item informs you that the end of a menu has been reached You ca
89. r CONTROL EXH menu item in diagnostics menu A number between 0 and 100 will be displayed Press the A V keys until either 0 or 100 shows on the display Note the position of the general exhaust control damper If display reads 0 press the A key until 100 is shown on display If display reads 100 press key until 0 is shown on display Note the position of the general exhaust damper The damper should have rotated either 45 or 90 degrees depending on actuator installed CHECK Sensor input Enter SENSOR INPUT menu item in diagnostics menu A voltage between 0 and 10 volts DC will be displayed It is not important what the exact voltage is to pass this test Tape over the pressure sensor slide pressure sensor door open and voltage should read approximately 5 volts zero pressure Remove tape and blow on sensor Displayed value should change If voltage changes the sensor is functioning correctly If voltage does not change proceed to CHECK Sensor status CHECK Sensor status Enter SENSOR STAT menu item in diagnostics menu If NORMAL is displayed the unit passes test If an error message is displayed go to diagnostics menu section of the manual SENSOR STAT menu item for explanation of error message CHECK Temperature sensor input Enter TEMP INPUT menu item in diagnostics menu A temperature value will be displayed The exact temperature displayed is not important as long as the temperature changes when space temperatur
90. r tas oneestaatactiinetpuethatecitens 1 Operator Panel D E E E TAT A T 3 Alans Ae ae e re nE a E a a a a S AE 5 Bef r Callng TS li aitai ie e ie a ei a aa aiae 6 PART TWO E E E A T E E 7 Technical SECON ie eena eTA RE EER A E Ta eE AEE E S eE 7 Software Programming i mereen eta aet ees vt tap ari iSS Ea ieee 7 Menu and Menu Items cccccececeeeeeeeneeeceeeeeceeeeaaeaeeeeeeesesaaaeaeeeeeeeseescnieeeeeeeess 12 teiar A G Teo i A EA AE E AAT 55 EIE EI ola N E E E E E E D E E reece rrrre 63 Maintenance and Repair Parts ieres ieii e e ta e Raa 67 Troubleshooting S CtiON cceeececeeeceeeeeeceeeeseeeeeeeeseaeeeeaaeeeeaaeseeeeeseaeeetiaeeseeeeeaes 69 APPENDIX A arer aan eoeonioe sgeanan aa ennas ansie aoine a aa Eue e aa Ka e SEA aaia dae aaas E Ra Soetta se oa E ASANA RAEN raS 79 Species eiaeia r a Nerd cette a a t 79 APPENDIX E a E E E E E ihce hose ceded cts seuss ede 81 Network Communications ccccscceeeestececeeeeeeseeeaeeeceeaaeeeseesaeeeeseaaeeeesetateseneaaes 81 Modbus Communications ccccccccceccessececseseeeceeeeeesseaeeeseeaeeessenaeeeeeeneeseseaes 81 N2 Communications Description of Variables cccccecceseeeeeeeeeeeeeeeeteeeeneeee 85 LONWOrkS Objecte aea eaa ra aan dba eae a aanrada a ASEE a taa aara AERA 89 8682 BACnet MS TP Protocol Implementation Conformance SaleMe Nhs t iis a e aa a icra oth cat 90 Model 8682 BAC BACnet MS TP Object Set ccccccceeeeseeeeeeeeeeneeeseeeteneeee
91. re meters calculated and then entered into the unit FUME HOOD HD1 FLO The HD FLO ZERO item establishes the flow station NONE FLOW STATION ZERO zero flow point A zero or no flow point needs to be ZERO established in order to obtain a correct flow through measurement output see Calibration section HD7 FLO ZERO All pressure based flow stations need to have a HD FLO ZERO established on initial set up Linear flow stations with a 1 5 VDC output also need to have a HD FLO ZERO established Linear flow stations with a 0 5 VDC output do not need a HD FLO ZERO FLOW STATION FLO STA The FLO STA TYPE item is used to select the flow PRESSURE or PRESSURE TYPE TYPE station input signal PRESSURE is selected when TSI LINEAR flow stations with pressure transducers are installed LINEAR is selected when a linear output flow station is installed 0 5 VDC Typically a thermal anemometer based flow station uoldeS eoIUYyde eS HOOD FLOW MENU continued MAXIMUM FLOW TOP STATION VELOCITY VELOCITY END OF MENU HOOD CAL MENU HOOD LOW HD1 LOW CALIBRATION CAL POINTS through HD7 LOW CAL HOOD HIGH HD1 HIGH CALIBRATION CAL POINTS through HD7 HIGH CAL The TOP VELOCITY item is used to input the maximum 0 to 5 000 ft min velocity of a linear flow station output A TOP VELOCITY 0 to 25 4 m s must be input for the linear flow station to operate NOTE This item is disabled if a pressure based flow station is installed The E
92. ressure control loop is very slow when compared to the primary flow control loop This menu item should not be changed unless problems with the pressure control loop can be established confirm problem is not with primary flow control loop When this item is entered a value for Kc is indicated on the display Decreasing Kc will slow the pressure control loop down while increasing Kc will increase the pressure control loop speed oO OM Hed CONTROL MENU continued TEMPERATURE SENSITIVITY TEMP DB The TEMP DB item determines the controller s temperature control deadband which is defined as the temperature range above and below the temperature set point TEMP SETP where the controller will not take corrective action Time If TEMP DB is set to 1 0 F and the TEMP SETP is set to 70 0 F the controller will not take corrective action unless the space temperature is below 69 0 F or above 71 0 F 0 0 F to 1 0 F 0 3 F uoldeS eoIUYyde Le CONTROL MENU continued TEMPERATURE THROTTLING RANGE TEMP TR The TEMP TR item determines the controllers 2 0 F to 20 0 F 6 0 F temperature control throttling range which is defined as the temperature range for the controller to fully open and fully close the reheat valve 6F Throttling Range lt 100 N 90 Open 64 65 66 67 68 69 70 74 72 73 74 75 76 Temperature F
93. rgency key has been pressed see EMERGENCY key 3 Clears any displayed error messages MUTE Key The MUTE key temporarily silences the audible alarm The time the alarm is temporarily silenced is programmable by you see MUTE TIMEOUT When the mute period ends the audible alarm turns back on if the alarm condition is still present NOTE You can program the audible alarm to be permanently turned off see AUDIBLE ALM AUX Key The AUX key is active only in specialty applications and is not used on the standard SureFlow controller If the AUX key is used a separate manual supplement will explain the AUX key function Programming Keys Gray with Blue Characters The four keys with blue print are used to program or configure the unit to fit a particular application MENU Key The MENU key performs three functions 1 Provides access to the menus when in the normal operating mode 2 When the unit is being programmed the MENU key acts as an escape key to remove you from an item or menu without saving data 3 Returns the unit to the normal operating mode The MENU key is further described in the Software Programming section of this manual 4 Part One SELECT Key The SELECT key performs three functions 1 Provides access to specific menus 2 Provides access to menu items 3 Saves data Pressing the key when finished with a menu item will save the data and exit you out of the menu item A V Keys The A keys are used to scroll
94. ro flow point A zero or no flow point needs to be established in order to obtain a correct flow measurement output see Calibration section All pressure based flow stations need to have a SP FLO ZERO established on initial set up Linear flow stations with a 1 5 VDC output also need to have a SP FLO ZERO established Linear flow sup stations with a 0 5 VDC output do not need a SP FLO ZERO The FLO STA TYPE item is used to select the flow station PRESSURE or PRESSURE input signal PRESSURE is selected when TSI flow LINEAR stations with pressure transducers are installed LINEAR is selected when a linear output flow station is installed 0 to 5 VDC Typically a thermal anemometer based flow station uoldeS jeoIUYyde Lv SUPPLY FLOW MENU continued MAXIMUM FLOW STATION VELOCITY SUPPLY FLOW LOW CALIBRATION SETTING SUPPLY FLOW HIGH CALIBRATION SETTING SUPPLY FLOW LOW CALIBRATION SUPPLY FLOW HIGH CALIBRATION TOP VELOCITY SP LOW SETP SP HIGH SETP SP1 LOW CAL through SP4 LOW CAL SP1 HIGH CAL through SP4 HIGH CAL The TOP VELOCITY item is used to input the maximum velocity of a linear flow station output A TOP VELOCITY must be input for the linear flow station to operate 0 to 5 000 ft min 0 0 to 25 4 m s NOTE This item is disabled if a pressure based flow station is installed The SP LOW SETP menu item sets the supply damper 0 Open to 0 OPEN position for su
95. ross the sensor Quite simply if the air is dirty the sensors will require more frequent inspection and cleaning Visually inspect the pressure sensor by sliding open the sensor housing door Figure 9 The air flow orifice should be free of obstructions The small ceramic coated sensors protruding from the orifice wall should be white and free of accumulated debris Technical Section 67 Pressure Sensor Figure 9 Pressure Sensor Door Slid Open Periodically inspect the other system components for proper performance and physical signs of excessive wear Pressure Sensor Cleaning Accumulations of dust or dirt can be removed with a dry soft bristled brush such as an artist s brush If necessary water alcohol acetone or trichlorethane may be used as a solvent to remove other contaminants Use extreme care when cleaning the velocity sensors The ceramic sensor may break if excessive pressure is applied if sensor is scraped to remove contaminants or if the cleaning apparatus abruptly impacts the sensor Flow Station Inspection Cleaning The flow station can be inspected by removing mounting screws and visually examining probe Pressure based flow stations can be cleaned by blowing compressed air into the low and high pressure taps flow station does not need to be removed from duct Linear flow stations thermal anemometer type can be cleaned with a dry soft bristled brush such as an artist s brush If necessary w
96. rt One Operator Panel The DIM in Figure 3 shows the location of the digital display keypad and lights An explanation of the operator panel follows the figure 2 Line Digital Display Keys Figure 3 SUREFLOW Operator Panel Open Green Red Light The green light is on when all the conditions for proper room pressure are adequate This light indicates the laboratory is operating safely If any of the room pressure conditions cannot be satisfied the green light turns off and the red alarm light turns on Operator Panel A cover hides the operator panel Sliding the door panel to the right exposes the operator panel Figure 2 Digital Display The alphanumeric digital display is a two line display that indicates actual room pressure positive or negative alarm status menu options and error messages In normal operation green light is on the display indicates information about room pressure If an alarm condition occurs the display will change from STANDARD STANDARD NORMAL to read ALARM will state type of alarm low pressure high pressure flow When programming the unit the display will change and now show menus menu items and current value of the item depending on the specific programming function being performed NOTE The AOC system will control room pressure without a pressure sensor installed However verification that room pressure is being maintained is not possible The displ
97. s Gives the menu or programming name Defines each menu item s function what it does how it does it etc Gives the range of values that can be programmed Gives default item value how it shipped from factory The menus covered in this section are divided into groups of related items to ease programming As an example all set points are in one menu alarm information in another etc The manual follows the menus as programmed in the controller The menu items are always grouped by menu and then listed in menu item order not alphabetical order Figure 5 shows a chart of all the Model 8682 controller menu items SET POINTS ALARM CONFIGURE CALIBRATION SET POINT LOW ALARM UNITS SENSOR SPAN REM SET POINT HIGH ALARM EXH CONFIG ELEVATION VENT MIN SET REM LOW ALM ACCESS CODES TEMP CAL COOLING FLOW REM HIGH ALM UNOCCUPY SET MIN SUP ALM MAX SUP SET MAX EXH ALM MIN EXH SET ALARM RESET MIN OFFSET AUDIBLE ALM MAX OFFSET ALARM DELAY TEMP SETP MUTE TIMEOUT UNOCC TEMP CONTROL SYSTEM FLOW FLOW CHECK DIAGNOSTICS SPEED TOT SUP FLOW SP1 FLOW IN CONTROL SUP SENSITIVITY TOT EXH FLOW SP2 FLOW IN CONTROL EXH CONTROL SIG OFFSET VALUE SP3 FLOW IN CONTROL TEMP SUP CONT DIR SUP SET POINT SP4 FLOW IN SENSOR INPUT EXH CONT DIR EXH SET POINT EX1 FLOW IN SENSOR STAT TEMP DIR EX2 FLOW IN TEMP INPUT REHEAT SIG HD1 FLOW IN OCCUPANT SWT KC VALUE HD2 FLOW IN REMOTE SWT TI VALUE HD3 FLOW IN LOW ALM REL KC OFFSET HD4 FLOW IN HIGH ALM REL TEMP D
98. s used to input the maximum The EX LOW SETP menu item sets the general exhaust 0 OPEN 100 OPEN The EX HIGH SETP menu item sets the general exhaust The EX LOW CAL menu items display the currently The EX HIGH CAL menu items display the currently uOl deS eoIUYdE LS EXHAUST FLOW MENU continued RESET CALIBRATION RESET CAL END OF MENU The RESET CAL menu item restores the default calibration for the 2 exhaust flows When this menu item is entered the 8682 will prompt the user to verify that they want to do this by indicating NO Use the A V keys change the display to YES then press the SELECT key to reset the calibrations Pressing the MENU key before the SELECT key will exit out of the menu item The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu OM Wed HOOD FLOW MENU FUME HOOD HD1 DCT The HD DCT AREA item inputs the fume hood 0 to 10 square feet 0 EXHAUST DUCT AREA exhaust duct size The duct size is needed to compute 0 to 0 9500 square SIZE eatih the flow out of the fume hood This item requires a flow meters g station to be mounted in each fume hood exhaust duct HD7 DCT The DIM does not AREA If the DIM displays English units area must be entered compute duct area in square feet If metric units are displayed area must The area must be first be entered in squa
99. stantly on Check SENSOR STAT and confirm NORMAL is displayed If ERROR is displayed correct error Unit is communicating with DIM This is normal This is normal when no problems exist or when no communication is occurring Technical Section 75 DIM always Incorrect pressure Pressure sensor must be set for 0 to 10 volt output not 4 to displays 0 200 sensor output 20 mA Check pressure sensor DIP switch 3 and make sure it is inches H20 OFF see Figure 10 DIM does not Network protocol is Go into INTERFACE menu NET PROTOCOL item The respond to RS 485 communications incorrect Incorrect network address Incompatible software protocol must match host system Select correct interface The network address at the building automation system and at the DIM must match The network address must be unique for each DIM Data sent to DIM may be in form that the SureFlow controller cannot recognize DIM displays opposite pressure signal Sensor direction is incorrect Pressure sensor must have DIP switch correctly set for proper sign display Verify DIP switch 4 is ON when sensor is mounted in the laboratory controlled space and OFF when sensor is mounted in corridor reference space See Figure 8 Alarm relays don t work Alarms are turned off Incorrect wiring Relay may be defective Press TEST key The individual alarm set points will display If all alarm set p
100. t the main 1 to 247 1 ADDRESS ADDRESS network address of the individual room pressure device Each unit on the network must have its own unique address The values range from 1 247 If RS 485 communications are being used then a unique NET ADDRESS must be entered into the unit There is no priority between the RS 485 and keypad The most recent signal by either RS 485 or keypad will initiate a change RS 485 communications allows you access to all menu items except calibration and control items The RS 485 network can initiate a change at any time LON LON When the SERVICE PIN option is selected the Model SERVICE PIN 8682 sends a broadcast message containing its Neuron or ID and program ID This is required to install the Model GO 8682 on the LonWorks network or to reinstall the Model UNCONFIGURED 8682 after using the GO UNCONFIGURED command Selecting the GO UNCONFIGURED option resets the Model 8682 s authentication key This is required in the event a foreign network tool inadvertently acquires a Model 8682 and installs it with network management authentication The Model 8682 s owner will then be unable to reclaim the Model 8682 over the network The LON Menu Item will replace the Network Protocol and Network Address Menu Item on SureFlow controllers provided with the LonWorks board OM Hed uoloeS eoIUYyde ev INTERFACE MENU continued MAC ADDRESS MAC The MAC ADDRESS assigns the device an addr
101. te for any room pressure application The Instrument The SureFlow Adaptive Offset Controller AOC maintains laboratory pressure and air balance The AOC measures and controls all air flow into and out of the laboratory and measures the pressure differential Proper laboratory pressure differential provides safety by controlling airborne contaminants that can adversely affect workers in the laboratory people in the laboratory vicinity and experiments For example laboratories with fume hoods have negative room pressure air flowing into the room to minimize exposure to people outside the laboratory The fume hood is the first level of containment and the laboratory space is the second level of containment Room pressure or pressure differential is created when one space hallway is at a different pressure than an adjoining space laboratory The Adaptive Offset Controller AOC creates a pressure differential by modulating supply air into and exhaust air out of the laboratory hallway space is a constant volume system The theory is that if more air is exhausted out than is supplied the laboratory will be negative compared to the hallway A set offset may not maintain an adequate pressure differential under all conditions The AOC compensates for the unknown pressure differential by mounting a pressure differential sensor between the hallway and laboratory that confirms correct pressure differential is being maintained If pressure is not bein
102. tion to the DIM and AOC The DIM continuously reports the room pressure and activates the alarms when necessary The AOC controls the supply and exhaust dampers to maintain the pressure differential The AOC is a closed loop controller that is continuously measuring reporting and controlling room pressure Useful User Information The DIM has a green light and red light to indicate room pressure status The green light is on when the room has proper room pressure The red light comes on when an alarm condition exists Sliding the door panel to the right reveals a digital display and keypad Figure 2 The display shows detailed information about room pressure alarms etc The keypad allows you to test the device put the device into emergency mode and program or change the device parameters Figure 2 Digital Interface Module DIM SUREFLOW controller has two levels of user information 1 SureFlow controller has a red light and green light to provide continuous information on room pressure status 2 SureFlow controller has a hidden operator panel providing detailed room status information self testing capabilities and access to the software programming functions NOTE The unit provides continuous room pressure status through the red and green light The operator panel is normally closed unless further information on room pressure status is needed or software programming is required 2 Pa
103. total supply by summing SP1 FLOW IN though SP4 FLOW IN This is a system information only menu item no programming is possible The TOT EXH FLOW menu item displays the current total measured exhaust flow out of the laboratory This item calculates total exhaust by summing EX1 FLOW IN EX2 FLOW IN and HD1 FLOW IN through HD7 FLOW IN This is a system information only menu item no programming is possible The OFFSET VALUE menu item displays the actual flow offset being used to control the laboratory The OFFSET VALUE is calculated by the AOC control algorithm which uses the MIN OFFSET MAX OFFSET and SET POINT items to calculate required offset This is a system information only menu item no programming is possible The SUP SET POINT menu item displays the supply flow set point which is calculated by the AOC control algorithm The calculated SUP SET POINT is a diagnostic item used to compare the actual TOT SUP FLOW to the calculated flow they should match within 10 This is a system information only menu item no programming is possible NONE Read only value NONE Read only value NONE Read only value NONE Read only value NONE NONE NONE NONE OM Wed SYSTEM FLOW MENU continued GENERAL EXHAUST FLOW SET POINT CALCULATED EXH SET POINT END OF MENU The EXH SET POINT menu item displays the general NONE exhaust flow set point which is calculated by the AOC NONE Read only control algorith
104. ture changes when the RTD signal changes If unit passed all tests the mechanical components are physically working If problems still exist go to troubleshooting chart for additional information on both hardware and software symptoms continued on next page 72 Part Two Troubleshooting Chart Display is blank Fuse is blown No power to DIM DIM is defective Measure voltage at pins 33 and 34 on AOC The voltage should nominally be 24 to 30 VAC If correct voltage is measured internal DIM fuse is probably blown Unplug 14 pin connector from DIM for 2 minutes The internal fuse will automatically reset Plug unit back in and check display If display is still blank check all wiring etc If no problems are found replace DIM If zero volts are measured see No power to DIM Verify circuit breaker is on Verify transformer primary measures 110 VAC Verify transformer secondary measures 24 to 30 VAC Verify electric AOC panel is receiving 24 to 30 volts between pins 33 and 34 If proper voltage is found between pins 1 and 2 of the DIM all wiring has been checked fuses have been reset and screen is still blank the DIM is probably defective Replace DIM Control system is not controlling Incorrect wiring Supply and exhaust control wiring reversed No control output signal Verify correct wiring see wiring diagram Appendix C DIM and AOC must be wired exactly as shown Verify sup
105. ule DIM is programmed with a default configuration that can be easily modified to fit your application The Technical section is separated into five parts that cover all aspects of the unit Each section is written as independently as possible to minimize flipping back and forth through the manual for an answer The Software Programming section explains the programming keys on the DIM In addition the programming sequence is described which is the same regardless of the menu item being changed At the end of this section is an example of how to program the DIM The Menu and Menu Item section lists all of the software items available to program and change The items are grouped by menu which means all set points are in one menu alarm items in another etc The menu items and all related information is listed in table format and includes menu item name description of menu item range of programmable values and how the unit shipped from the factory default values The Setup Checkout section explains the AOC controller theory of operation lists the menu items that need to be programmed for the system to operate provides a programming example and provides information to confirm system is operating correctly The Calibration section describes the required technique to compare the pressure sensor reading to a thermal anemometer and how to adjust the zero and span to obtain an accurate calibration This section also describes how to zero a T
106. utInht nci 165 nciDevicelndex nci 166 nciFirmwareVer LON Works Room Controller Status Definitions 88 nvoControlStatus 0 Standard nvoStatusindex 0 Nomli i O Error 5 Maximum Exhaust 4 LON Override Alarm po ata Error S a Minimum Supply Alarm Appendix B Adaptive Offset Controller Object LonWorks Object nvoFlowOffset SNVT flow f nvoTotExhFlo SNVT_flow nvoTotSupFlo SNVT_flow Dm nviSpaceTemp nvoSpaceTemp SNVT temp p SNVT temp p SNVT_occupanc SNVT press f Dm nviEmergMode gt m nvoTotGenExhFlo SNVT hvac emerg SNVT flow Dm nviExhOverride gt m nvoTotHoodExhFlo SNVT hvac overid SNVT flow Dm nvoSupOverride D ma nvoSupDamperPos SNVT hvac overid SNVT lev percent nviSpaceTempSet Yms nvoExhDamperPos SNVT temp p SNVT lev percent gt me nvoRehtValvePos SNVT lev percent gt w nvoMinOffsetSet SNVT flow f gt ms nvoMaxOffsetSet SNVT_flow_f gt mo nvoMinSupFloSet SNVT flow gt na nvoMaxSupFloSet SNVT_flow gt var nvoUnOccSupFlo SNVT_flow gt na nvoMinExhFloSet SNVT flow gt nz nvoLoSupFloAlm SNVT_flow gt aves nvoHiExhFloAlm SNVT_flow gt wa nvoCoolSupFlo SNVT_flow gt war nvoRmPressSet SNVT press f gt mas nvoLoRmPressAlm SNVT press f gt wa nvoHiRmPressAlm SNVT press f Configuration properties nci 49 nciMaxSendTime nci 27 nciSndDeltaPress nci 52 nciMinSendTime nci64 nciSndDeltaTemp nci 47 nciSndDeltaFlow nci 27 nciSndDeltaPos
107. very large Poor control will occur if values are more than twice or less than 1 2 the default value Suggestion Before changing Kc or Ti change the SPEED or adjust the SENSITIVITY to try to eliminate the problem The Kc VALUE item changes the gain control coefficient of the primary control loop flow tracking loop When this item is entered a value for Kc is indicated on the display If the AOC is not controlling correctly the Kc gain control coefficient may need adjusting Decreasing Kc will slow the control system down which will increase stability Increasing Kc will increase the control system which may cause system instability The Ti VALUE item changes the integral control coefficient of the primary control loop flow tracking loop When this item is entered a value for Ti is indicated on the display If the AOC is not controlling correctly the unit may have an inappropriate integral control coefficient Increasing Ti will slow the control system which will increase stability Decreasing Ti will increase the control system speed which may cause system instability uono 9 jeoIUYyde 6z CONTROL MENU continued Kc OFFSET Kc OFFSET Kc 0 1000 Kc 200 The range of values is very large Poor control will occur if values are more than twice or less than 1 2 the default value The Kc OFFSET item changes the gain control coefficient of the secondary control loop pressure control loop The p
108. visual alarm and relay output which means all are latched or unlatched The AUDIBLE ALM item selects whether the audible alarm is turned ON or OFF Selecting ON requires the staff to press the MUTE key to silence the audible alarm Selecting OFF permanently mutes all audible alarms except when the EMERGENCY key is pressed LATCHED UNLATCHED OR UNLATCHED ON or OFF ON The ALARM DELAY determines the length of time the alarm 20 to 600 SECONDS 20 SECONDS is delayed after an alarm condition has been detected This delay affects the visual alarm audible alarm and relay outputs An ALARM DELAY prevents nuisance alarms from people entering and leaving the laboratory uoldes jeoIuYyde Le ALARM MENU continued MUTE TIMEOUT MUTE The MUTE TIMEOUT determines the length of time the 5 to 30 MINUTES 5 MINUTES TIMEOUT audible alarm is silenced after the MUTE key is pressed This delay temporarily mutes the audible alarm NOTE If the DIM is in alarm when MUTE TIMEOUT expires the audible alarm turns on When the pressure returns to the safe range the MUTE TIMEOUT is canceled If the room goes back into an alarm condition the MUTE key must be pressed again to mute the audible alarm END OF The END OF MENU item informs you that the end of a MENU menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu ALARM CONSTRAINTS There are a number of constraints
109. w offset between total exhaust flow fume hood general exhaust other exhaust and total supply flow The TEMP SETP item sets the temperature control set point The SureFlow controller will maintain the temperature set point under normal operating conditions The UNOCC TEMP item sets the temperature control set point while the room is in unoccupied mode WIRING This item is enabled when the OCCUPANT SWT contact closure is closed pins 11 and 12 DIM or the RS 485 communications sends a command When switch input is open TEMP SETP is enabled and UNOCC TEMP is disabled 0 to 30 000 CFM 0 to 14 100 l s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m 10 000 to 10 000 CFM 10 000 to 10 000 CFM 50 F to 85 F 50 F to 85 F OFF 68 F 68 F OM Hed SET POINTS MENU continued ALARM MENU LOW PRESSURE ALARM HIGH PRESSURE ALARM REMOTE OR ALTERNATE LOW PRESSURE ALARM END OF MENU LOW ALARM HIGH ALARM REM LOW ALM The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu The LOW ALARM item sets the low pressure alarm set point A low alarm condition is defined as when the room pressure falls below or goes in the opposite direction of the LOW ALARM set point The HIGH ALARM ite
110. xcept calibration span These units H20 Pa display for all menu items set points alarms flows etc The EXH CONFIG menu item determines the exhaust UNGANGED or UNGANGED configuration If the general exhaust duct is separate from GANGED the total exhaust select UNGANGED left side of Figure 6 If the general exhaust duct is part of the total exhaust select GANGED right side of Figure 6 The correct configuration is required for the control algorithm to function correctly Airflow Airflow Fume Hood Flow General General General Exhaust Station Exhaust 4 places Exhaust Flow Figure 6 Exhaust Configuration NOTE In either the GANGED or UNGANGED configuration a general exhaust flow measurement is required The ACCESS CODES item selects whether an access ON or OFF OFF code pass code is required to enter any menu The ACCESS CODES item prevents unauthorized access to a menu If ACCESS CODES is ON a code is required before the menu can be entered Conversely if ACCESS CODES is OFF no code is required to enter the menu ie A OM Hed CONFIGURE MENU continued END OF MENU CALIBRATION MENU SENSOR SPAN ALTITUDE TEMPERATURE CALIBRATION SENSOR SPAN ELEVATION TEMP CAL The END OF MENU item informs you that the end of a menu has been reached You can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu
111. y to Seller s factory shall be at Buyer s risk of loss and will be returned if at all at Seller s risk of loss Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY which contains the complete and exclusive limited warranty of Seller This LIMITATION OF WARRANTY AND LIABILITY may not be amended modified or its terms waived except by writing signed by an Officer of Seller SERVICE POLICY Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers our service policy is designed to give prompt attention to any problems If any malfunction is discovered please contact your nearest sales office or representative or call TSI s Customer Service department at 800 874 2811 TRADEMARKS TSI and TSI logo are registered trademarks of TSI Incorporated SureFlow is a trademark of TSI Incorporated LonWorks is a registered trademark of Echelon Corporation BACnet is a registered trademark of ASHRAE Microsoft is a registered trademark of Microsoft Corporation CONTENTS HOW TO USE THIS MANUAL cccccsseeeeeeee sete ee seeeneeeeeeeeesaaeeeneeeeneeeesaesaseeesaeeeeeeneeeseaeseaneneneeees IV PART ONE oeiicss cfecevcsnccseccecacceesescessacectuadesvnecdeccecdeguass s2cueacecduadccesadieduecdicusce socava sects eaecesdebegsacdedescssodaezse 1 User BasiGS re iit thatthe atta onthe athe aa 1 TM IMSIHUIME Nets eeyazt aaa attics eet aseeent cae yetatatactliuecaeutt ane

Model 8682/8682-BAC SureFlow Adaptive Offset Controller

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