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Model 8636 SUREFLOW Room Pressure Controller Operation

1. 3 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 A V Keys The A 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 to follow is the same regardless of the menu item being changed d 2 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 V 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 codes are found in Appendix D Press the SELECT key to access chosen item The top line of display shows menu item selected wh
2. SUREFLOW ROOM PRESSURE CONTROLLER MODELS 8636 8636 BAC OPERATION AND SERVICE MANUAL START SEEING TRE Beer S Lar 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 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 33 491 11 87 64 Singapore Tel 65 6595 6388 Germany Tel 49 241 523030 2012 TSI Incorporated Printed in U S A SUREFLOW ROOM PRESSURE CONTROLLER MODELS 8636 8636 BAC OPERATION AND SERVICE MANUAL P N 1980441 REVISION H FEBRUARY 2013 U S AND CANADA OTHER COUNTRIES Sales amp Customer Service Sales amp Customer Service 800 874 281 1 651 490 281 1 001 651 490 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 J Copyrigh
3. The calibration section explains how to calibrate the SureFlow pressure sensor including setting the proper elevation and how to zero a flow station NOTE The SureFlow 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 exists First check that the sensor is installed correctly usually only a problem on initial set up Second 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 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 5 VDC flow stations do not require a zero flow to be established Adjusting the SureFlow controller 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 e under the door middle of door edge of door 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
4. 19 20 Input Non powered switch input When input is closed this software item is enabled UNOCC SETP 21 22 0 to 10 VDC flow station signal supply duct 1 23 24 1000Q platinum RTD temperature input signal 25 26 0 to 10 VDC 4 to 20 mA temperature control signal to reheat valve 27 28 Input Communicatio O to 10 VDC flow station signal supply duct 2 ns Optional LonWorks communications to building management system Optional BACnet MSTP communications to building management system WE ke 21 22 23 24 25 26 NOTE Terminals 27 amp 28 are utilized for LonWorks communications when the LonWorks communication board option is included with the controller or BACnet MSTP communications for Model 8636 BAC For Model 8636 BAC or Model 8636 LN the controller can not accept a second supply flow input and all second supply flow menu items will be deleted from the menu structure 73 WIG SINGOW SOV4YSLNI IY LISIA O 2 SAWA O ii i zu OL NOISHJA LANOV XX9 98 N d T NOISHSA SMHHOMNOT XX9E98 N d Q XJ TIONLNOO 661008 N d x 297 LAdLNO YSATIONLNOO 08 008 N d YOLVNLOV OIYLOATA NI MOvVads dd MOTI NI MOVads dd MOT AINO SATWA IYNLNIA LNO MO1s OAGAOL 1 LNO MOTI DSGAOL L NI SIS THLD DAGAGL 0 NI SIS THLO OGAOL O YATIONLNOD ISL LNO SAA LNO DAA NI OWA pZ NI OWA F 027008 N d YAWYOASNVEL L NI INdNI MO14 NI A
5. COOLING FLOW set point to ensure that the COOLING FLOW air flow does not exceed the spaces exhaust air flow capabilities and therefore the controller s ability to maintain the space pressure set point SETPOINT NOTE A TSI flow station is required to make the flow measurement and enable this function The flow station and control damper must be mounted in the supply duct for this item to function properly 0 to 30 000 CFM 0 to 14100 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 0 to 14100 L s Linear based flow stations 0 to TOP VELOCITY times the duct area in square feet ft square meters m 9 SETPOINTS MENU continued TEMPERATUR TEMP SETIP The TEMP SETP item sets the temperature control 50 F to 85 F E SETPOINT setpoint The SureFlow controller will maintain the temperature setpoint under normal operating conditions UNOCCUPIED UNOCC TEMPERATUR TEMP E SETPOINT The UNOCC TEMP item sets the unoccupied mode 50 F to 85 F temperature control setpoint The SureFlow controller will maintain the temperature setpoint under normal operating OM Hed MINIMUM SUPPLY DAMPER POSITION MAXIMUM SUPPLY DAMPER POSITION MINIMUM EXHAUST DAMPER POSITION MAXIMUM EXHAUST DAMPER POSITION MIN SUP DAMP MAX SUP DAMP MIN EXH DAMP MAX EXH DAMP conditions The MIN SUP DAMP menu item sets the supply damp
6. O to 10 VDC 0 to 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 Modbus RTU standard N2 optional Optional Model 8636 BAC only 32 to 120 50 msec 24 VAC 5 watts max 50 or 60 Hz 24 VDC 50 or 60 Hz 4 9 in x 4 9 in x 1 35 in 59 Pressure Sensor Temperature Compensation Range 1111 55 to 95 F Power Dissipation EE 0 16 watts at 0 inches H20 0 20 watts at 0 00088 inches H2O Dimensions HWI 3 34 in x 5 58 in x 1 94 in Ke e EE 0 2 Ib Damper Actuator Type of Actuators easan n Electric DUD Ge EE Electric 24 VAC Time for 90 Rotation aati Electric 1 5 seconds 60 Appendix A Appendix B Network Communications Network communications are available on the Model 8636 and Model 8636 BAC The Model 8636 can communicate with a building management system through Modbus or LonWorks protocols The Model 8636 BAC can communicate with a building management system through BACnet MSTP Please refer to the appropriate section below for more detailed information Modbus Communications Modbus communications are installed in all Model 8636 laboratory room pressure controllers and monitors This document provides the technical information needed to communicate between the host DDC system and the Model 8636 units This document assumes the progra
7. The goods returned under warranty 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 BACnet is a registered trademark of ASHRAE LonWorks is a registered trademark of Echelon Corporation Microsoft is a registered trademark of Microsoft Corporation CONTENTS HOW TO USE THIS MANUAL A ccc eceeeeteeseteeeeeeeeceeeeceeeeceeeenaseenuseeenseneueenaeeenaeeenuseneneenes III PART el TE 1 SC AS CS E 1 Hoeser eege dee 1 Operator Panel E 3 Eden EE 5 Belore Galing TS EE 6 PART TWO E 7 E 19 191 ers Et ON 7 SOlware ProgramiMiNg E 8 Menu and Menu un E 12 CDO eaa nee en ne ene 41 Maintenance and Repair Parts ccccc
8. the DIM is in UNOCC SETP mode Supply Flow Input Menu Item SUP1 FLOW IN amp SUP2 FLOW IN The SUP FLOW IN item is used to read the input from the supply flow station 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 is changing which indicates the flow station is working correctly This item is a diagnostics tool used to compare the supply flow to a traverse of the duct work If flow error is greater than 10 calibrate the flow station This menu items does not appear on Model 8636 SureFlow controllers provided with the optional LonWorks communication board Temperature Input Menu Item TEMP INPUT The TEMP INPUT item is used to read the input from the sensor When this item is entered a temperature will be indicated on the display The exact temperature displayed is relatively unimportant It is more important that the temperature is changing which indicates the sensor is working correctly Technical Section eh Low Alarm Relay Menu Item ALARM RELAY 52 The ALARM RELAY item is used to change the state of the alarm relay When this item is entered the display will indicate either OPEN or CLOSED The A V keys are used to toggle the state of the relay The A key is used to OPEN the alarm contact The VW key is used to CLOSE the alarm contact When the contact is closed the ALARM RELAY should be in an alar
9. CFM The general exhaust damper will first be modulated closed in order to maintain the pressure differential Once the general exhaust damper is fully closed the supply air volume will then be increased to maintain the pressure differential The supply air volume will nominally be increased to 900 CFM The hood is shut after the experiments are loaded so the fume hood exhaust flow decreases to 250 CFM The supply flow will first be reduced to its minimum flow VENT MIN SET Once the supply flow reaches is minimum the general exhaust will be modulated to maintain pressure An oven is turned on and the laboratory is getting warm The rise in space temperature is measured by the space temperature sensor The controller will first close the reheat valve and begin a 3 minute time period If after the 3 minute time period the space temperature is still to warm the controller will gradually increase the supply flow to the COOLING FLOW set point This increases the supply air to 400 CFM The general exhaust air must also increase damper opens to maintain the pressure differential The control loop continuously keeps the room pressure and temperature control satisfied Technical Section 37 Checkout The controller should have the individual components checked prior to attempting control of the laboratory The checkout procedure outlined below will confirm all hardware is performing correctly The checkout procedure is not difficult and wi
10. E P interface Verify voltage on pins 1 and 2 of DIM is 24 to 30 VAC for pneumatic systems and VFDs or 24 to 40 VDC on electric actuators 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 Verify correct wiring see wiring diagram Appendix B DIM must be wired exactly as shown Verify supply control wiring pins 17 and 18 goes to supply damper and exhaust control wiring pins 9 and 10 goes to general exhaust damper 53 Control system is No control output not controlling signal continued Bad actuator or E P damper does not move Defective variable frequency drive VFD Damper rotating opposite direction 54 Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 and 225 will be displayed Pressing the A key increases the number Pressing the V key decreases the number Measure the DC voltage between pins 17 and 18 on the controller Change the CONTROL value about 100 numbers The voltage output should change approximately 4 volts Change the CONTROL value to 150 The voltage should read approximately 5 VDC If no change occurs disconnect control wires on pins 17 and 18 and repeat test If DIM still fails to change voltage output DIM is probably defective Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 and 255 wil
11. 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 mode 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 When scrolling through the main menu pressing the MENU key will return the unit to standard operating mode When scrolling through the items on a menu pressing the MENU key will return you to the list of menus 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 8 Part Two 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 2 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
12. NORMAL mode EMERG_PURGE sets EMERGENCY mode Note all other commands set NORMAL mode nviControlMode OC_OCCUPIED Sets NORMAL mode OC_STANDBY Sets SETBACK mode OC UNOCCUPIED Sets SETBACK mode Note all other commands set NORMAL mode nviExhOverride NVO_OFF Clears override nviSupOverride NVO_POSITION Moves the damper valve 0 100 open nviRehtOverride NVO_MAXIMUM Moves damper valve to 100 open NVO_ MINIMUM Moves damper valve to 0 open Note all other commands set NORMAL mode 66 Appendix B object_request Network Modbus Communications 67 8636 BACnet MS TP Protocol Implementation Conformance Statement Date April 26 2007 Vendor Name TSI Inc Product Name Pressura Room Pressure Controller Product Model Number 8636 BAC Applications Software Version 1 0 Firmware Revision 1 0 BACnet Protocol Revision 2 Product Description TSI SureFlow Room Pressure Controls are designed to actually measure the room pressure differential used to prevent chemical vapors from escaping outside the lab This controller will modulate supply and general exhaust air flows to maintain laboratory ventilation and the room pressure differential to comply with standards such as NFPA45 2000 and ANSI Z9 5 2003 This controller also controls the temperature of the laboratory space by modulating the reheat and the supply air volume This model controller is capable of acting as a stand alone device or as part of a building aut
13. SP2 LOW CAL could both be completed before completing SP1 HIGH CAL and SP2 HIGH CAL Calibrating temperature sensor 44 NOTE Menu item is found in the CALIBRATION menu Enter the TEMP CAL item Use the A V keys to adjust the current measured temperature value Press SELECT key to save data Part Two Maintenance and Repair Parts The Model 8636 SureFlow Room Pressure Controller requires minimal maintenance Periodic inspection of system components as well as an occasional pressure sensor cleaning is all that is needed to ensure that the Model 8636 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 across 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 8 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 Cover Pressure Sensor Figure 8 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
14. TSI mechanical components are functioning correctly The hardware test requires the diagnostics menu items to be accessed If you are unfamiliar with the SureFlow controller menus see software Programming for keystroke procedure Troubleshooting the majority of problems Is usually quick if the hardware test 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 Hardware Test Three tests need to be performed in order to determine all hardware is functioning correctly The tests 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 dia
15. VAL is indicated on the display If the SureFlow controller is not controlling correctly the unit may have an inappropriate integral control coefficient Increasing TEMP Ti VAL will slow the control system which will increase stability Decreasing TEMP Ti VAL will speed up the control system which may cause system instability 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 UONIES BIIUYIE Lt SUPPLY FLOW MENU SUPPLY FLOW DUCT AREA SUPPLY FLOW ZERO FLOW STATION TYPE SP1 DCT AREA SP2 DCT AREA SP1 FLO ZERO SP2 FLO ZERO FLO STA TYPE The SP DCT AREA items are used to input the supply O to 10 square feet duct size The duct size is needed to compute the flow 0 to 0 9500 square into the room This item requires a flow station to be meters mounted in the supply duct When a duct area is programmed the display will automatically scroll the actual supply flow as part of the display sequence If a zero value is entered the supply flow value will not scroll on the display 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 The SP FLO ZERO items are used to establish the flow station zero flow point A zero or no flow point needs to be established prior to using the flow
16. 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 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 The DIM will display two airflow values Press the A or VW 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 then Select SP HIGH CAL to enter a supply flow high calibration value The DIM will display two airflow values Press the A or VW 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 Technical Section 43 Press SELECT key to save data NOTE 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 lt 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
17. built into the software that prevent users from programming conflicting alarm information These are as follows 1 Remote alarms The remote alarms are only active when the switch input pins 11 and 12 is closed which activates the remote or second setpoint When the remote or second setpoint are active the standard alarms are turned off The SureFlow controller is programmed not to allow the pressure alarms to be programmed within 20 ft min 0 00028 H20 at 0 001 H20 of the control setpoint Example The control SETPOINT is set at 0 001 H2O The LOW ALARM setpoint cannot be set higher than 0 00072 H20 Conversely if your control SETPOINT is set at 0 001 H2O the HIGH ALARM setpoint cannot be set lower than 0 00128 H20 The minimum flow alarms must be programmed to be at least 50 CFM ess than the minimum flow setpoint The alarms both standard and remote can be programmed for positive or negative pressure However both the low and high alarm must be set either positive or negative The DIM does not allow one positive alarm and one negative alarm Alarms do not terminate until the pressure or flow exceeds the alarm setpoint The alarm setpoint must be slightly exceeded before alarm will terminate 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 t
18. e no display on unit remote alarms do not function dampers do not modulate etc If problems still exist look for performance problems i e does not seem to read correctly display fluctuates etc The first step is to determine that the system is mechanically operating correctly followed by modifying the configuration to eliminate the performance problems Technical Section 7 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 lf programming through RS 485 communications use the host computer s procedure The changes take place immediately upon saving data in the instrument 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 W MUTE A TEST RESET SELECT Vv Figure 4 Programming Keys MENU
19. how the alarms terminate after the unit returns to control setpoint pressure or flow UNLATCHED alarm follow automatically resets the alarms when the unit reaches control setpoint LATCHED requires the staff to press the RESET key after the unit returns to control setpoint The ALARM RESET affects the audible alarm 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 The ALARM DELAY determines the length of time the alarm 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 The ALARM DELAY is enabled when the SWITCH INPUT contact closure pins 11 and 12 is open or the RS 485 communications sends a command ALARM MENU continued 0 to 30 000 CFM O to 14100 L s LATCHED UNLATCHED OR UNLATCHED ON or OFF 20 to 600 SECONDS 20 SECONDS UONIES ISOuU2et el ALARM MENU continued DOOR DELAY MUTE TIMEOUT DOOR DELAY MUTE TIMEOUT The DOOR DELAY item is an alarm delay used when the 20 to 600 SECONDS 20 SECONDS door will be open for an extended period of time The DOOR DELAY
20. mounted in exhaust air duct Temperature Control System Temperature Sensor 1000Q RTD mounted in the laboratory Reheat coil mounted in supply air duct s 1 2 36 Flow station mounted in supply air duct Required for non venturi valve applications only Part Two 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 SUP DCT AREA 1 0 ft 12 x 12 Supply duct area Additional menu items to program for temperature and pressure control VENT MIN SET 280 CFM 10 air changes per hour COOLING FLOW 400 CFM Required flow to cool laboratory TEMP SETP 72 F Laboratory temperature set point SETPOINT 0 001 H O Pressure differential set point 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 250 CFM Supply air is 280 CFM maintain ventilation General exhaust flow is not measured The general exhaust flow is modulated to maintain the pressure differential The fume hood is opened so that the chemists can load experiments into the hood The face velocity 100 ft min is maintained by the fume hood face velocity controllers by modulating the fume hood dampers The total fume hood flow is now 1 000
21. page intentionally left blank PART ONE User Basics Reading product manuals should not be a difficult and time consuming process This section 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 but the product information is accurate for any room pressure application The Instrument SureFlow controller measures and reports room pressure Proper room pressure can control airborne contaminants that can adversely affect experiments workers in the laboratory and people in the laboratory vicinity For example laboratories with fume hoods need 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 itself 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 When a pressure differential is created between two spaces air is forced to flow from the higher pressure space to the lower pressure space The direction of air flow is one component of proper room pressure The second component of roo
22. 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 When this item is entered a temperature via a 1000Q platinum RTD will be indicated on the display The exact temperature displayed is relatively unimportant It is more important that the temperature is changing which indicates the sensor is working correctly Technical Section 39 CHECK Supply Flow The SUP1 FLOW IN and SUP2 FLOW IN items list 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 adjust the corresponding DCT AREA until actual flow matches flow station reading If unit passed all checks the mechanical components are physically working 40 Part Two Calibration
23. provides room pressure information to the DIM The DIM continuously reports the room pressure and activates the alarms when necessary SureFlow controller is a continuous measuring system providing instant information on the 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 al 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 Part One Operator Panel The DIM in Figure 3 shows the location of the digital display Keypad and ligh
24. recognize 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 9 Press TEST key The individual alarm setpoints will display If all alarm setpoints 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 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 does not respond relay is defective may be caused by incompatible device Replace DIM All data may be lost or changed Review all configuration parameters DATA ERROR is removed by pressing the RESET key Go into CONTROL menu SPEED item Turn speed down until hunting is eliminated If soeed is too slow review CONTROL menu items and adjust accordingly to eliminate hunting Part Two Displayed pressure wildly fluctuating Temperature not controlling Control system is unstable Exhaust system unstable Supply
25. station Enter SUP FLOW IN menu item in diagnostics menu A voltage between 0 and 10 volts DC will be displayed The exact voltage displayed is not important as long as the voltage varies as flow changes Zero volts equals no flow while 10 volts is maximum flow After calibration the signal establishes a correlation between flow and voltage 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 temperature 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 Diagnostics Menu The items in the diagnostic menu aid in identifying problems the staff may encounter The items in this menu temporarily change the function by pressing the A V keys No permanent change occurs with these menu items Items are exited by pressing the MENU key When an item is exited the SureFlow controller returns to its normal state Supply Air Control Output Menu item CONTROL SUP The CONTROL SUP item is used to change the control output signal to the supply air actuator damper or motor speed drive When this item is entered a number will be shown on the display indicating the last control output value The range of values displayed is 0 255 Pressing the A V keys change the
26. test the electronics may be corrupted Check all software items to determine cause of DATA ERROR Pressing RESET will cleat the DATA ERROR from the controller If SELF TEST PASSED was displayed proceed to check individual components Enter Diagnostics and Flow Check Menu to check the following Control output supply if controlling supply air Control output exhaust if controlling exhaust air Control output reheat if controlling reheat valve Sensor input if pressure sensor is installed Sensor status if pressure sensor installed Temperature input Supply flow station 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 Model 8636 system passes each of the checks the mechanical piece parts are all functioning correctly 38 Part Two CHECK 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 reads 100 OPEN press VW 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 contr
27. times the duct area in square feet ft square meters m UONIES ISOuU2et Gl SETPOINTS MENU continued VENTILATION VENT MIN SUPPLY FLOW SET SETPOINT SPACE COOLING COOLING FLOW SUPPLY FLOW SETPOINT The VENT MIN SET item sets the ventilation supply flow setpoint CFM This item provides supply air flow adequate to meet the ventilation requirement by preventing the supply flow from going below a preset minimum CFM The controller will not allow the supply air damper to be closed further than the VENT MIN SET setpoint If room pressure is not maintained at minimum supply flow the general exhaust damper modulates open until pressure setpoint is reached NOTE A TSI flow station is required to make the flow measurement and enable this function The flow station and control damper must be mounted in the supply duct for this item to function properly The COOLING FLOW item sets the space cooling supply flow setpoint 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 setpoint from a minimum ventilation rate when the space temperature is too warm If room pressure is not maintained the supply flow gradually increases which occurs in response to a warm space the general exhaust damper modulates open until the space pressure setpoint is reached WARNING Care must be taken when programming the
28. 0 8251 6588 France Tel 33 4 91 11 87 64 Singapore Tel 65 6595 6388 Germany Tel 49 241 523030 P N 1980441 Rev H 2013 TSI Incorporated Printed in U S A
29. 1 Unoccupied 70 Appendix B Normal Low Press Alarm High Press Alarm Min Supply Alarm Data Error Multi State Status Index Input Emergency Exit Emergency Mode Multi State Enter Emergency vee 2 Emergency Mode Mode 3 Normal 1 ft min Multi State 2 m s Valie 3 Units Value 3 HO 4 Pa 863001 TSI8636 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 1 2 3 4 5 6 1 2 The device instance is 863000 summed with the MAC address of the device Network Modbus Communications 71 72 This page intentionally left blank Appendix B Appendix C Wiring Information Back Panel Wiring C 1 2 Input 24 VAC to power Digital Interface Module DIM and sensor NOTE 24 VAC becomes polarized when connected to DIM 24 VAC power for Pressure Sensor 0 to 10 VDC pressure sensor signal RS 485 communications between DIM and pressure sensor 9 0 to 10 VDC general exhaust control signal 11 12 Non powered switch input When input is closed these software items are enabled DOOR LOW ALM DOOR HIGH ALM and DOOR DELAY 13 14 Alarm relay N O closes in alarm condition See menu items ALARM amp DOOR ALARM 15 16 RS 485 communications between DIM and host building automation system 17 18 Output O to 10 VDC supply air control signal
30. AMP set point position An optional alarm will trigger to inform the user pressure differential is not being maintained The Model 8636 continuously monitors and displays pressure differential between the laboratory and corridor reference space When the pressure differential is adequate a green light indicates a safe pressure differential is being maintained Room pressure alarm set points configured into the controller activate a red light and audible alarm when the room pressure becomes insufficient or too great In addition to a local indication of room pressure alarm contacts and RS 485 communications may be used to provide extensive information to a building management system Temperature Control Sequence The 8636 receives a temperature input from a temperature sensor 1000 Q Platinum RTD The Model 8636 controller maintains temperature control by 1 Controlling supply and general exhaust for ventilation and cooling 2 Controlling the reheat coil for heating The Model 8636 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 8636
31. E If temperature control is being maintained by the Model 8636 the following menu items must also be programmed Temperature The temperature cooling and heating values VENT MIN SET COOLING FLOW and TEMP SETP 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 Model 8638 to operate Technical Section 35 Programming Example The laboratory shown is Figure 6 is being initially setup The required HVAC information is below the figure Flow Station 3 places Damper Actuator 3 places Digital Interface Module Figure 6 Laboratory Setup Example Laboratory design Laboratory size 5 foot fume hood Flow offset Ventilation set point Supply Cooling Volume Pressure differential Temperature setpoint 12 x 14 10 1 680 ft 250 CFM min 1 000 CFM max 100 500 CFM 280 CFM ACPH 10 400 CFM 0 001 Ha 72 F Value supplied by laboratory designer Room Pressure Control System Model 8636 Direct Pressure Control System mounted in the laboratory A through the wall pressure sensor mounted between the corridor referenced space and laboratory controlled space Damper pressure dependent VAV box or venturi valve with actuator assembly mounted in supply air duct s Damper pressure dependent VAV box or venturi valve with actuator assembly
32. FF OFF OFF OFF OFF OFF Figure 9 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 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 55 DIM always displays 0 200 inches H20 DIM does not respond to RS 485 communications DIM displays opposite pressure signal Alarm relays do not work DATA ERROR flashing on display Actuator hunting Display indicates steady pressure 56 Incorrect pressure sensor output Network protocol is incorrect Incorrect network address Incompatible software Sensor direction is incorrect Alarms are turned off Incorrect wiring Relay may be defective DIM was hit by electrical disturbance Control system is unstable Pressure sensor must be set for 0 10 volt output not 4 20 mA Check pressure sensor DIP switch 3 and make sure it is OFF see Figure 9 Go into INTERFACE menu NET PROTOCOL item The 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
33. I 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 Model number of unit 8636 _ Software revision level Facility where unit is installed First two 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 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 E MAIL TSI Incorporated answers tsi com ATTN Customer Service 500 Cardigan Road WEB SITE Shoreview MN 55126 www tsi com USA 6 Part One PART TWO Technical Section The SureFlow controller is ready to use after being properly installed The pressure sensor is factory calibrated prior to shipping and should not need adjustment The Digital Interface Module DIM is programmed with a default configuration that can be easily modified to fit your application The Technical section is separated into five par
34. L TEMP item is used to change the control output signal to the reheat valve actuator When this item is entered a number will be shown on the display indicating the last control output value The range of values displayed is 0 255 Pressing the A V keys change the count on the display Pressing the A key should increase the displayed value while pressing the V key will decrease the displayed value The reheat valve actuator should change modulate as the number changes Depending on the actuator 0 or 255 is full open on damper Conversely 255 or O will be full closed A count of 150 should position the valve approximately 1 2 open Sensor Input Menu item SENSOR INPUT The SENSOR INPUT item is used to verify that the DIM or controller electronics is receiving a signal from the 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 is changing which indicates the sensor is working correctly 0 volts represents a negative pressure of 0 2 inches H20 5 volts represents 0 pressure 10 volts represents a positive pressure of 0 2 inches HO 50 Part Two Sensor Communications Menu Item SENSOR STAT The SENSOR STAT item verifies that the RS 485 communications between the pressure sensor and DIM is working correctly Sensor error messages do not display on DIM except when SENSOR STAT item is selected The item will dis
35. NSOR SPAN NET ADDRESS ELEVATION LON TEMP CAL MAC ADDRESS ACCESS CODES SUPPLY FLOW SP1 DCT AREA SP2 DCT AREA SP1 FLO ZERO SP2 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 RESET CAL Menu item description located in Troubleshooting section LON Menu Item will only appear as a menu option for a Model 8636 Room Pressure Controller that includes an optional LonWorks board MAC ADDRESS Menu Item will only appear as a menu option for a Model 8636 BAC Room Pressure Controller which includes a BACnet MSTP board The Menu Item NET ADDRESS will be deleted as a menu option on the Model 8636 Room Pressure Controllers that include the optional LonWorks board or BACnet MSTP board These menu items do not appear as options when the controller includes the LonWorks or BACnet MSTP communication options Figure 5 Menu Items Model 8636 8636 BAC Controller LonWorks is a registered trademark of Echelon Corporation Technical Section Pl OM Hed SETPOINTS MENU PRESSURE SETPOINT SETPOINT DOOR MODE OR ALTERNATE PRESSURE SETPOINT DOOR SETP UNOCCUPIED UNOCC SUPPLY FLOW SETP SETPOINT The SETPOINT item sets the pressure control setpoint The SureFlow controller will maintain the room pressure negative or positive under normal operating conditions This item is enabled when the SWITCH INPUT contact closure pi
36. OL MENU continued TEMPERATUR TEMP TR The TEMP TR item determines the controller s 2 0 F to 20 0 F E SETPOINT temperature control throttling range which is defined as THROTTLING the temperature range for the controller to fully open and RANGE fully close the reheat valve 3 F Throttling Range 68 69 70 71 72 73 Temperature F 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 UC OM Hed CONTROL MENU continued TEMPERATUR TEMP Ti VAL E SETPONT INTEGRAL VALUE WARNING The TEMP Ti VAL item provides you with 1 to 10000 sec 2400 sec the ability to manually change the temperature control PI integral control loop variable DO NOT CHANGE THIS VALUE UNLESS YOU HAVE A THOROUGH UNDERSTANDING OF PI CONTROL LOOPS CONTACT TSI FOR ASSISTANCE PRIOR TO CHANGING ANY VALUES Contact TSI for assistance in determining your control problem and for instructions on how to change a value Incorrectly changing a value will result in poor or nonexistent control Suggestion Before changing TEMP Ti VAL adjust the TEMP DB or adjust the TEMP TR to try to eliminate the problem The TEMP Ti VAL item is used to read and change the integral control coefficient When this item is entered a value for TEMP Ti
37. Pressure based flow station 42 Disconnect tubing between pressure transducer and flow station Enter Supply Flow menu Select SP FLO ZERO to take a supply 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 Part Two Linear flow station 1 to 10 VDC output Remove flow station from duct or cutoff flow in duct Flow station must have no flow going past the sensor Enter Supply Flow menu Select SP FLO ZERO to take a supply 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 insert number of flow station you are performing a zero on 2 Point Flow Calibration Supply Flow Calibration Enter Supply Flow menu Select SP LOW SETP to enter a supply flow low calibration setpoint 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 high calibration setpoint The DIM will display
38. arm 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 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 p
39. 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 Technical Section 45 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 Pressure Sensor Pressure Sensor __ o 46 Part Two 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 trouble shoot 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
40. ccccseseeeeseeeeeseeseeesseeeeessaseeenaees 45 Troubleshooting SECTION cceccccecceeeeceeecaeeeeceeeeaeeeceeeeseeeeeeeesaaeeeeeeeeas 47 APPENDIX A MEN 59 PECES a A 59 APPENDIX B oaan et nS aa aa a eee Aa On Aa eee 61 Network COMMUNICATIONS cceeceeeceecceeceeeceeceeececeueeneeeaeeneesaeeaeeeaeeaeeens 61 Modbus Communications cee cecceeeceeceeececceeeeeceueeeeeceeeneeeaeeaeeeeesaeeens 61 LonWorks Node Oblect 65 LonWorks Obiect 66 8636 BACnet MS TP Protocol Implementation Conformance SELE EEN 68 Model 8636 BAC BACnet MS TP Object Sei 70 ENEE 73 Wiring Information 73 APPENDIX D EE 75 Access e TEEN 75 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 maintenance and troubleshooting 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 This
41. count on the display Pressing the A key should increase the displayed value while pressing the VW key will decrease the displayed value The supply control device should change modulate as the number changes Depending on the jumper location on the actuator 0 or 255 is full open on damper Conversely 255 or 0 will be full closed A count of 150 should position the damper approximately 1 2 open On units controlling variable frequency drives fan speed should increase or decrease as numbers change Technical Section 49 Exhaust Air Control Output Menu item CONTROL EXH The CONTROL EXH item is used to change the control output signal to the exhaust supply air actuator damper or motor speed drive When this item is entered a number will be shown on the display indicating the last control output value The range of values displayed is 0 255 Pressing the A V keys change the count on the display Pressing the A key should increase the displayed value while pressing the V key will decrease the displayed value The exhaust control device should change modulate as the number changes Depending on the jumper location on the actuator 0 or 255 is full open on damper Conversely 255 or 0 will be full closed A count of 150 should position the damper approximately 1 2 open On units controlling variable frequency drives fan speed should increase or decrease as numbers change Temperature Control Output Menu item CONTROL TEMP The CONTRO
42. de 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 percentage 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 In summary understanding the Model 8636 control algorithm is the key to getting the system functioning correctly Required Software Programming The following menu items must be programmed for the Model 8636 to function See Menu and Menu Items section for information in individual menu items SP1 DCT AREA SETPOINT SP2 DCT AREA DOOR SETP SP1 FLO ZERO UNOCC SETP SP2 FLO ZERO VENT MIN SET FLO STA TYPE COOLING FLOW TOP VELOCITY TEMP SETP SP LOW SETP SP HIGH SETP SP1 LOW CAL SP1 HIGH CAL SP2 LOW CAL SP2 HIGH CAL i Required only if the lab has two supply VAV flow requirements Required only if the controller is to control space temperature Required only if the sequence of operations utilizes an Unoccupied Mode flow set point i e has an Unoccupied Mode NOT
43. e alarms turn off when set to unlatched when the unit returns to the safe range that is defined as negative pressure greater than 0 001 inches H3O 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 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 User Basics 5 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 either 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 TS
44. ection breaks the sequence down into sub sequences which simplifies the total system Theory of Operation The Model 8636 control system requires the following measurement inputs to function correctly e Supply air flow measured with a flow station e Temperature measured with a temperature sensor a 1000 Q Platinum RTD if temperature is incorporated into sequence e Pressure differential with a TSI pressure sensor Laboratory air balance Laboratory air balance is maintained by measuring the pressure difference between the lab and the reference space and modulating the general exhaust to maintain the required pressure differential The supply air flow is measured to allow the Model 8636 to adequately ventilate the lab space provide a minimum ACPH Additionally supply flow measurement is required to allow the Model 8636 to increase supply air flow to cool the lab if temperature control is incorporated into the control sequence The general exhaust modulates to maintain the pressure differential Pressure Control Sequence The Model 8636 receives the pressure differential signal from the pressure sensor If pressure is at set point the control algorithm maintains supply and general exhaust control outputs If pressure is not at set point the exhaust and or supply control output is changed until pressure is maintained or the minimum or maximum damper positions are reached If the pressure is below set point too negative or not p
45. em name Press the SELECT key to access the high alarm setpoint The item name HIGH ALARM will now be displayed on line 1 and the item s current value will be displayed on line 2 SELECT Item Name HIGH ALARM Current Value 00200 H O Press the A key to change the high alarm setpoint to 0 003 inches H20 HIGH ALARM 00300 H2O Press the SELECT key to save the new i SELECT negative low alarm setpoint I E O 2 S gt gt gt SR JJ lt 10 Part Two Three short beeps will sound HIGH ALARM indicating that the data is being Saving Data saved Immediately after the data is saved ALARM the SureFlow controller will return to HIGH ALARM 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 3 Press the MENU key once to return to the menu level CONFIGURE Press the MENU key a second time to return to the normal operating level Unit is now back in normal PRESSURE operation 00085 H2O Oc Technical Section 11 Menu and Menu Items The SureFlow controller is a very versatile device that can be configured to meet your specific application This section describes all of the menu items available to program and change except diagnostics menu Changing any item is accomplished by using the keypad or if communications are installed through the RS 485 Communications port If you are unfamiliar wi
46. en the SWITCH INPUT contact closure pins 11 and 12 is open or the RS 485 communications sends a command The DOOR LOW ALM item sets a remote or second low pressure alarm setpoint A remote low alarm condition is defined as when the room pressure falls below or goes in the opposite direction of the DOOR LOW ALM setpoint This item is enabled when the SWITCH INPUT contact closure pins 11 and 12 is closed or the RS 485 communications sends a command The DOOR HI ALM item sets a remote or second high pressure alarm setpoint A high alarm condition is defined as when the room pressure rises above the DOOR HI ALM setpoint This item is enabled when the SWITCH INPUT contact closure pins 11 and 12 is closed or the RS 485 communications sends a command OFF 0 to 0 19500 H2O 0 to 0 19500 H2O OFF 0 to 0 19500 H2O 0 to 0 19500 H2O OFF 0 to 0 19500 H2O 0 to 0 19500 H2O OFF 0 to 0 19500 H2O 0 to 0 19500 H2O GI OM Hed MINIMUM MIN SUP SUPPLY FLOW ALM ALARM ALARM RESET AUDIBLE AUDIBLE ALARM ALM ALARM DELAY The MIN SUP ALM item sets the supply duct s flow alarm setpoint A minimum flow alarm is defined as when the supply duct flow is less than the MIN SUP ALM setpoint The MIN SUP ALM item must be less than the VENT MIN SET item NOTE Supply air duct size SUP DCT AREA configure menu must be entered before MIN SUP ALM can be accessed The ALARM RESET item selects
47. enough use the 1 open door technique Calibrating Pressure Sensor Enter calibration menu see Software Programming if not familiar with key stroke procedure Access code is turned on so enter proper access code All menu items described below are found in SUPPLY FLOW 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 Technical Section 41 Cover Pressure Sensor Figure 7 Pressure Sensor Door Slid Open Sensor span NOTE A smoke test and a comparison measurement by an air velocity meter are required to calibrate the pressure sensor The air velocity meter only gives a velocity reading so a smoke test must be performed to determine pressure direction 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 V keys until pressure direction and sensor span match thermal air velocity meter and smoke test Press SELECT key to save sensor span Exit menu calibration is complete Flow Station Pressure Transducer Zero NOTE Not required for linear flow stations with 0 to 10 VDC output
48. er minimum opening The damper will not close more than this setpoint The MAX SUP DAMP menu item sets the supply damper maximum opening The damper will not open more than this setpoint The MIN EXH DAMP menu item sets the exhaust damper minimum opening The damper will not close more than this setpoint The MAX EXH DAMP menu item sets the exhaust damper maximum opening The damper will not open more than this setpoint 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 OPEN to 100 OPEN 0 OPEN to 100 OPEN 0 OPEN to 100 OPEN 0 OPEN to 100 OPEN 0 OPEN 100 OPEN 0 OPEN 100 OPEN UONIES ISOuU2et Zi ALARM MENU LOW LOW ALARM PRESSURE ALARM HIGH PRESSURE ALARM DOOR OR DOOR LOW SECOND LOW ALM ALARM DOOR OR DOOR HI SECOND HIGH ALM ALARM The LOW ALARM item sets the low pressure alarm setpoint A low alarm condition is defined as when of the room pressure falls below or goes in the opposite direction of the LOW ALARM setpoint This item is enabled when the SWITCH INPUT contact closure pins 11 and 12 is open or the RS 485 communications sends a command The HIGH ALARM item sets the high pressure alarm setpoint A high alarm condition is defined as when of the room pressure rises above the HIGH ALARM setpoint This item is enabled wh
49. es OYes 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 simultaneously Kl 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 69 Model 8636 BAC BACnet MS TP Object Set ft min m s HO Pa Room Pressure Analog Input 1 Analog Input Supply Flow Rate Analog Input Supply Flow Setpoint Analog input 4 Temperature o Supply Damper o Exhaust Damper Analog Input Reheat Valve Position Analog Value E E ie MAC Address 1 to 127 ft min m s Room Pressure 0 19500 to 0 19500 HO Pa Setpoint H2O HO Pa Setpoint H2O KEE uote SC H20 Pa Alarm HO H20 Pa Alarm 0 19500 H2O0 Analog Value 8 JI mis vert Min Setpoint Oto 30 000 cfm Analog Value 9 mis _ Cooling Flow Setpoint O to 30 000 cfm 5 Min Sup Damp 0 to 100 o Max Sup Damp 0 to 100 o Min Exh Damp 0 to 100 o Max Exh Damp O to 100 Binary Val 1 Control Mode arom inary Value 1 Door Mode Binary Value 2 Occ Unocc Mode wigan ake
50. g on actuator installed If not see the hardware section Control system is not controlling TEST Control output temperature 48 Enter CONTROL TEMP menu item in diagnostics menu A number between 0 and 255 will be displayed Press the A V keys until either 0 or 255 shows on the display Note the position of the reheat valve If display reads 0 press the A key until 255 is shown on display If display reads 255 press W key until O 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 Part Two 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 does not 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 TEST Supply flow
51. gram is located in Appendix B of this manual Wiring associated with non TSI components should be closely checked for correct installation If non TS I components are installed consider disconnecting them for testing purposes 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 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 Technical Section 47 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 lf SELF TEST PASSED is displayed proceed to test individual components Enter Diagnostics Menu and check the following e Control output supply Control output exhaust Control
52. he alarms automatically turn off when the value slightly exceeds the control setpoint If latched is selected the alarms will not terminate until the controller returns to setpoint and the RESET key is pressed There is a programmable ALARM DELAY and optional DOOR DELAY that determines how long to delay before activating the alarms This delay affects all pressure and flow alarms The MUTE TIMEOUT item temporarily turns the audible alarm off for all pressure and flow alarms UONIES BIIUYIE lo 10 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 Flow station minimum supply flow Data error The low and high 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 HO 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 setpoint 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 nega
53. iate integral control coefficient Increasing Ti will slow the control system which will increase stability Decreasing Ti will increase the control system which may Cause system instability Kc 0 to 1000 Kc 100 Ti 0 to 1000 Ti 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 8c OM Hed CONTROL MENU continued REHEAT CONTROL SIGNAL REHEAT CONTROL DIRECTION TEMPERATUR E SETPOINT DEAD BAND REHEAT SIG The REHEAT SIG item switches the temperature control output from O to 10 VDC to 4 to 20 mA REHEAT DIR The REHEAT DIR item determines the temperature control signal s output direction As an example if the control system closes the reheat valve instead of opening the valve this option will reverse the control signal to now open the valve 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 H Be gt E Be o Q E 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 4 to 20 mA or 0 to 10 VDC Direct or Reverse 0 0 F to 1 0 F 0 to 10 VDC Direct UONIES ISOuU2et 6c CONTR
54. ilation Supply Flow Setpoint Minimum supply flow control setpoint Displayed in CFM in normal mode Cooling Flow 7 Minimum supply flow control setpoint Displayed in CFM Supply Flow in temperature mode Setpoint Temperature Setpoint Space temperature setpoint Displayed in F Host DDC system must divide value by 10 to report temperature correctly Unoccupied Temperature Setpoint Space temperature setpoint Displayed in F Host DDC system must divide value by 10 to report temperature correctly Low Alarm Setpoint 10 Low pressure alarm setpoint Displayed in feet per minute 11 Lk Setpoint setpoint Remote High Alarm 13 Displayed in feet per minute Setpoint setpoint 14 Alarm Mode Latched or Unlatched alarms 0 Unlatched 1 Latched Audible Alarm 16 Audible alarm indication 0 Off 1 On Network Modbus Communications 63 8636 Laboratory Room Pressure Controller XRAM Variable List continued Alarm Delay Door Delay 20 to 600 seconds Host DDC system must divide value by 10 to report alarm delay correctly 20 to 600 seconds Host DDC system must divide value by 10 to report alarm delay correctly 300 to 1800 seconds Host DDC system must divide value by 600 to report alarm delay correcily 0 Feet per minute 1 meters per second 2 inches of H2O 3 Pascal Time delay before activation of audible alarm after entering alarm condition Length of time alarm is muted when mute key
55. ile 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 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 Technical Section Programming Example The following example demonstrates the keystroke sequence explained above In this example the high alarm setpoint will be changed from 0 002 inches H20 to 0 003 inches H20 Unit is in normal operation scrolling PRESSURE room pressure flows etc Pressure is 00085 H2O shown in this case Press the MENU key to gain access to the menus The first 2 menu choices SETPOINTS are displayed ALARM Press the V key once Blinking cursor should be on A of Alarm Press the SELECT key to access the ALARM menu SELECT NOTE Blinking cursor must be on A in Alarm Line 1 shows menu selected ALARM Line 2 shows first menu item Press the V key until HIGH ALARM is shown on display Menu selected ALARM It
56. inches H20 The room pressure control setpoints 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 H2O 6 2 10 Velocity in ft min 836 RAM Variables RAM variables use the Modbus command 04 Read Input Registers RAM variables are read only variables that correspond to what is shown on the Digital Interface Module DIM display TSI offers a number of different models so if a feature is not available on a unit the variable is set to 0 61 8636 Laboratory Room Pressure Controller RAM Variable List Velocity D Velocity of room pressure Displayed in feet per minute Pressure 1 Room pressure Displayed in inches H2O Host DDC system must divide value by 100 000 to report pressure correctly Total Supply 2 Total flow CFM measured by Displayed in CFM Flow Rate the Supply 1 and Supply 2 duct a TEF Flow Rate sph 1 e flow station Flow Rate Hh 2 C flow station Setpoint 5 Current control setpoint Displayed in feet per minute Status Index Status of SureFlow device 0 Normal 1 Low Alarm 2 High Alarm 4 Min Sup Alm 7 Data Error 8 Emergency Control Mode 7 Control mode device is in 0 Main 1 Door Current Current space temperature Displayed in F Temperature Host DDC system must divide value by 10 to report temperature correctly Signal Signal Control Signal EXAMPLE of 04 Read Input Registers functio
57. ion being performed 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 below User Basics 3 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 setpoint 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 nonautomatic reset mode The room pressure must be in the safe or normal range before the RESET key will operate 2 Resets the emergency function after the emergency 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 al
58. 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 modulating the reheat coil The Model 8636 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 8636 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 Part Two If the general exhaust is in the closed position and fume hood loads require additional replacement air the Model 8636 will overri
59. is pressed Mute Delay Units Value EXAMPLE of 16 10 Hex Preset Multiple Regs function format This example changes the remote setpoint to 100 ft min Current pressure units displayed QUERY RESPONSE Field Name Hex Field Name Hex Slave Address 01 Slave Address 01 Function 10 Function 10 Starting Address Hi 00 Starting Address Hi 00 Starting Address Lo 04 Starting Address Lo 04 No Of Registers Hi 00 No of Registers Hi 00 No Of Registers Lo 01 No of Registers Lo 01 Data Value High 00 Error Check CRC Data Value Low 64 Error Check CRC Example of 03 Read Holding Registers function format This example reads the minimum ventilation setpoint and the minimum temperature setpoint QUERY RESPONSE Field Name Hex Field Name Hex Slave Address 01 Slave Address 01 Function 03 Function 03 Starting Address Hi 00 Byte Count 04 Starting Address Lo 05 Data Hi 03 No Of Registers Hi 00 Data Lo 8E 1000 CFM No Of Registers Lo 02 Data Hi 04 Error Check CRC Data Lo BO 1200 CFM Error Check CRC 64 Appendix B LonWorks Node Object a SS nviStatus E KE KE Standard E LI Unoccupied NN ZIL Remote Setpoint NN Lmo tatuslnden DI o NN REENEN NN 3 High Alarm NN Al ooo Minimum Supply Alarm IT Second Sensor Low P ee Second Sensor High pS er aA NN SS NN SE Ne E SSS SSS NO e Normal Low Alarm GN A Ol 7 Data Error Emergency LON Override nciDevice
60. is usually set for a longer period of time than the ALARM DELAY This delay affects the visual alarm audible alarm and relay outputs The DOOR DELAY prevents nuisance alarms from people leaving the doors open to move equipment into or out of the laboratory or when a large group will be entering or leaving the laboratory The DOOR DELAY is enabled when the SWITCH INPUT contact closure pins 11 and 12 is closed or the RS 485 communications sends a command NOTE When the switch input is closed the remote setpoint and remote alarms are activated and the standard setpoint alarms and alarm delay are turned off Set the REMOTE SETPOINT and remote alarms equal to the standard SETPOINT and alarms if the same pressure control is required The MUTE TIMEOUT determines the length of time the 5 to 30 MINUTES 5 MINUTES 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 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 Hed ALARM CONSTRAINTS There are a number of constraints
61. l system closes the exhaust damper instead of opening the damper this option will reverse the control signal to now open the damper UONIES ISOuU2et Ze CONTROL MENU continued Ke VALUE Ti VALUE Ke VALUE Ti VALUE WARNING The Kc VALUE and Ti VALUE items provides you with the ability to manually change the PID control loop variables DO NOT CHANGE THESE VALUES UNLESS YOU HAVE A THOROUGH UNDERSTANDING OF PID CONTROL LOOPS CONTACT TSI FOR ASSISTANCE PRIOR TO CHANGING ANY VALUES Contact TSI for assistance in determining your control problem and for instructions on how to change a value Incorrectly changing a value will result in poor or nonexistent control Suggestion Before changing Kc or Ti change the speed or adjust the sensitivity to try to eliminate the problem The Kc VALUE item is used to read and change the gain control coefficient When this item is entered a value for Kc is indicated on the display If the SureFlow controller 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 is used to read and change the integral control coefficient When this item is entered a value for Ti is indicated on the display If the SureFlow controller is not controlling correctly the unit may have an inappropr
62. l be displayed Pressing the A key increases the number Pressing the V key decreases the number Change the CONTROL value to read 0 or 255 Note damper position Press an arrow key to change 0 to 255 or 255 to 0 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 Jumper is installed correctly on actuator or E P Appendix B Damper is not physically stuck Screws etc 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 contro output signal 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 H 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 reve
63. ld be established prior to adjusting the sensor span 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 temperature sensor to the actual space temperature as measured by a portable meter 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 O to 10 000 feet above sea level Unit is factory calibrated No initial adjustment should be necessary UONIES ISOuU2et Ge CONTROL MENU SENSITIVITY SENSITIVITY The SPEED item is used to select the control output speed 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 indicates maximum speed This is the fastest the controller will operate 1 bar is the slowest the control output will move The more bars shown the faster the control output 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 contr
64. lddns JOONN open S LAN Geng S G Yy gt e S A s gz Ze 92 sz ve ez Li o SL oO mo set JONLNOD 10HLNO9 i lt dl Aldals Av RES WYV 1 NI JOYNLNOO S8rSy NI Ino Lu HOLIMS 1SNYHXI YOSNSS UYOSNAS OVA HZ Ze SLOVLISLOVI A G LHM Sen Gd Ges le Ces E NO2 N09 T pl e gt V NI 08 008 N d o YOLYNL Y OINLOATS d E bd om E A e l W NI 2902 da MOI Ow Oz uwen aa mor O 6 AINO JATIYA IYNLNSA 4 ino morsoanor s O e a ae LNO MO14 OGAOI 1 of el s J NI SIS THLO 904014 0 9 O c W NI DIS THLO DGAOI 0 SCH KS e YATIONLNOO ISL LNO DAA Er Oz S 1 zone O e 5 Ae MER NI OWA bZ Oz Le Lu onal WE ov N ovaz O 1 TE o e EE Ze D o D me vlLv008 N d 318VO YSWHOASNVYL D Dr 027008 N d YINWHYOJSNY HL q D E Ge Ges II L 09 0Z L OVA pZ YOSNJS NNOD 9 L 09 0Z L OVA vz YaMOd JYNSSIHd J18Y9 YIMOd INdNI YOSNAS INdNI 74 Appendix D Access Codes This is the access code to all of the menus of the SureFlow controller When an access code is required pressing the following key sequence will provide access to the required menu Key Setpoints EMERGENCY oR Wh lt C m 19 76 This page intentionally left blank Appendix D 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 1
65. ll 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 take 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 B 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 controller 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 SELF TEST PASSED if DIM electronics are good If unit displays DATA ERROR at the end of the
66. lndex nciFirmwareVer 6 E E Es 7 E LS Kg a SS po E NN Ke E 8 8 nciOutInnt Ss Network Modbus Communications 65 LonWorks Object _ nviSpaceTemp CC SNVT_temp pp _ _ _ nviControIMode ST SNVT_occupancy _ nviEmergMode Ir La hvac emeg nviExhOverride Ir La hvac overid mviSupOverride LST hvac overid nviRehtOverride Ir SNVT_fvac_overrid _ nviDoorSwitth SNVT switch _ nviSpaceTempSet_ CT SNVT_temp pp _ 9 mviRmPressSet CE SNVT_press f 10 nvoRoomPress Ci SNe ff 11 nvoSpaceTemp CSE SNVT_temp_p _ 14 mvoTotSupFlo SNV fow S 15 nvoSupDamperPos LoNVI lev percent 16 nvoExhDamperPos LoNVI lev percent 17 nvoRehtValvePos LoNVI lev percent 18 mvoRmPressSet_ LoNVI pressf 19 nvoMinSupFloSet TI SNVT_flow S 21 nvoUnOccFloSet Ir O SNVT io 24 nvoCoolSupFlo SNV io 25 nvoDoorPressSet LoNVI pressf 33 Lmotofresshim LoNVIoeest 34 nvoHhiPressAim SNVT pressf JL nciMinSendTime II JL nciSndDeltaFlow J o oo S naiSndDeltaPress II LL nciSndDeltaTemp o o SSS o i nciSndDeltaPos Pressure values must be multiplied by 1000 when writing to nviRmPressSet For example write 2 50 for a pressure value of 00250 in H20 Description of LON SNVTs nviEmergMode EMERG_NORMAL sets
67. m condition Part Two Troubleshooting Chart Display is blank Fuse is blown No power to DIM DIM is defective Control system is Incorrect wiring not controlling Supply and exhaust control wiring reversed Technical Section Measure voltage at pins 1 and 2 on DIM The voltage should nominally be 24 to 40 VDC when using TSI electric actuators 24 to 30 VAC when using TSI pneumatic actuators 24 to 30 VAC when using motor speed drives 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 approximately 5 volts is measured the fuse in the electric actuator or E P is blown Disconnect power to the electric actuator or E P for two minutes to reset fuse Disconnecting power requires either shutting off circuit breaker or disconnecting the wires on pins 1 and 2 on the electric actuator or E P lf 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 actuator or E P interface is receiving 24 to 30 volts between pins 1 and 2 Verify 24 to 40 VDC is found between pins 3 and 4 of the electric actuator Verify 24 to 30 VAC between pins 3 and 4 of the
68. m pressure is the speed or how fast is the air moving between the two spaces The SureFlow controller provides both pieces of information by measuring whether the air is flowing into or out of a laboratory and the speed of the air 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 gt gt Room Room Negative Positive Figure 1 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 User Basics 1 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 two pieces a pressure sensor and a Digital Interface Module DIM The pressure sensor is mounted above the doorway entrance to the laboratory Usually the DIM is mounted close to the entrance to the laboratory The pressure sensor continuously measures the room pressure and
69. measurement output see Calibration section following menu item listing 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 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 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 typically thermal anemometer based is installed These menu items do not appear on Model 8636 BAC or Model 8636 LN CE SUPPLY FLOW MENU continued 0 to 5 000 FT MIN 0 to 25 4 m s MAXIMUM FLOW TOP STATION VELOCITY The TOP VELOCITY item is used to input the maximum velocity of a linear flow station output A TOP VELOCITY OM Hed VELOCTIY LOW CALIBRATION DAMPER POSITION HIGH CALIBRATION DAMPER POSITION SUPPLY LOW FLOW CALIBRATION SUPPLY HIGH FLOW CALIBRATION RESET CALIBRATION SP LOW SETP SP HIGH SETP SP1 LOW CAL SP2 LOW CAL SP1 HIGH CAL SP2 HIGH CAL RESET CAL must be input for the linear flow station to operate NOTE This item is disabled if a pressure based flow Station is installed The SP LOW SETP menu item sets the supply damper position for supply low flow calibration The SP HIGH SETP menu item sets the
70. mmer 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 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 there correct address is polled Blocks of data can be written or read from each device Using a block format will soeed 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 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 8636 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
71. n format This example read variable addresses 0 and 1 Velocity and Pressure from 8636 QUERY RESPONSE Field Name Hex Field Name Hex Slave Address 01 Slave Address 01 Function 04 Function 04 Starting Address Hi 00 Byte Count 04 Starting Address Lo 00 Data Hi Addr0 00 No Of Points Hi 00 Data Lo Addr0O 64 100 ft min No Of Points Lo 02 Data Hi Addr1 00 Error Check CRC Data Lo Addr1 59 00089 H20 Error Check CRC 62 Appendix B XRAM 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 controller 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 TSI offers a number of different models so if a feature is not available on a unit the variable is set to 0 8636 Laboratory Room Pressure Controller XRAM Variable List Software Version Current software version Host DDC system must divide read only ii value by 100 to report software version correctly Control Device 1 SureFlow Model 6 Lab Controller read only Emergency Mode 2 Emergency Mode Control 0 Leave emergency mode Value will return a 2 when read Setpoint O1 Remote Setpoint i Unoccupied mode Setpoint Minimum i i Vent
72. ns 11 and 12 is open or the RS 485 communications sends a command The DOOR SETP item sets an alternate control setpoint The SureFlow controller will maintain the room pressure at the alternate setpoint when this item is enabled This item is enabled when the SWITCH INPUT contact closure pins 11 and 12 is closed or the RS 485 communications sends a command NOTE The DOOR SETP also enables the DOOR DELAY and disables the ALARM DELAY The UNOCC SETP item sets the unoccupied mode minimum supply flow setpoint CFM This item provides supply air flow adequate to meet the unoccupied ventilation requirement by preventing the supply flow from going below a preset minimum CFM This item is enabled when the UNOCC IN contact closure pins 19 and 20 is closed or the RS 485 communications sends a command The controller will not allow the supply air damper to be closed further than the UNOCC SETP setpoint If room pressure is not maintained at minimum ventilation flow the general exhaust damper modulates open until pressure setpoint is reached NOTE A TSI flow station is required to make the flow measurement and enable this function The flow station and control damper must be mounted in the supply duct for this item to function properly 0 to 0 19500 H20 or 0 00100 O to 0 19500 H2O H20 0 to 0 19500 H20 or 0 to 0 19500 H2O 0 to 30 000 CFM 0 to 14100 L s Linear based flow stations 0 to TOP VELOCITY
73. oller enters PID control fast control When this item is selected a bar graph will be shown on the display There are 10 bars each representing 10 ft min Starting from the right side sign 10 bars displayed indicates no dead band so the controller will always be in PID control mode The less bars displayed the larger the integral dead band For example with 8 bars displayed and an operating setpoint of 100 ft min the integral dead band is between 80 and 120 ft min When the measured room pressure velocity is within this range integral or slow control is used However when the room pressure velocity falls below 80 ft min or rises above 120 ft min 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 a slow control signal 1 to 10 bars 0 to 10 bars 5 bars 9 OM Hed CONTROL MENU continued SUPPLY SUP CONT CONTROL DIR DIRECTION EXAUST EXH CONT CONTROL DIR DIRECTION The SUP CONT SIG item determines the supply control Direct or Reverse Direct signal s output direction As an example if the control system closes the supply damper instead of opening the damper this option will reverse the control signal to now open the damper The EXH CONT SIG item determines the exhaust control Direct or Reverse Direct Signal e output direction As an example if the contro
74. olling CHECK 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 reads 100 OPEN press W 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 CHECK Control output temperature Enter CONTROL TEMP 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 reheat valve If display reads 0 OPEN press the A key until 100 OPEN is shown on display If display reads 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 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
75. omation 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 not supported 68 Appendix B Standard Object Types Supported No No Keng Value be raume SE es Ui Inactive Text o e Je ee Inactive Text Eremit State_Text No No State _ Text Se Unsigned Int 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 devic
76. or exhaust air is affecting the sensor Incorrect wiring No control output signal Bad actuator valve does not move Valve rotating opposite direction Technical Section Go into CONTROL menu SPEED item turn speed down until fluctuation is eliminated If speed is too slow review CONTROL menu 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 Verify correct wiring See wiring diagram Appendix B DIM must be wired exactly as shown Go into DIAGNOSTICS menu CONTROL SUP or CONTROL EXH item A number between 0 and 225 will be displayed Pressing the A key increases the number Pressing the V key decreases the number Measure the DC voltage between pins 25 and 26 on the controller Change the CONTROL value about 100 numbers The voltage output should change approximately 4 volts Change the CONTROL value to 150 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 in
77. ositive enough The controller will first decrease the general exhaust until one of the following events occur e Pressure set point is reached The Model 8636 maintains the new control outputs e The general exhaust damper position reaches the MIN EXH DAMP set point position An optional alarm will trigger to inform the user pressure differential is not being maintained e Ifthe general exhaust is fully closed as determined by either the MIN EXH DAMP set point or the physical position of the damper the supply will be increased until the room pressure set point is reached or until the supply flow reaches MAX SUP SETP flow set point position If the controller has fully closed the general exhaust and is modulating the supply flow to control space pressure and there is a rapid reduction in pressure for instance a fume hood is closed the controller will quickly react by closing the supply The supply flow will not be allowed to drop below the VENT MIN SET Once the supply flow reaches the VENT MIN SET flow rate Technical Section 33 34 the controller will then immediately control the general exhaust to maintain pressure If the pressure is above set point too positive or not negative enough The controller will first increase the general exhaust until one of the following events occur e Pressure set point is reached The Model 8636 maintains the new control outputs e The general exhaust damper position reaches the MAX EXH D
78. output temperature Sensor input Sensor status Supply flow stations Temperature input NOTE Skip any test that does not have option installed 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 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 and 255 will be displayed Press the A V keys until either 0 or 255 shows on the display Note the position of the supply air control damper If display reads 0 press the A key until 255 is shown on display If display reads 255 press VW 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 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 and 255 will be displayed Press the A V keys until either 0 or 255 shows on the display Note the position of the general exhaust control damper If display reads 0 press the A key until 255 is shown on display If display reads 255 press V key until O is shown on display Note the position of the general exhaust damper The damper should have rotated either 45 or 90 degrees dependin
79. play 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 the 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 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 Switch Input Menu Item SWITCH INPUT The SWITCH INPUT item reads the input of the SWITCH IN contact pins 11 and 12 When this item is entered the display will indicate either open or closed If the display indicates open the DIM is in SETPOINT and ALARM DELAY mode If the display indicates closed the DIM is in REM SETPOINT and DOOR DELAY mode SWITCH INPUT changes both pressure setpoint and alarm delay when closed If the same setpoint or alarm delay is required set both setpoints or alarm delay to same value Unoccupied switch Input Menu Item UNOCC INPUT The UNOCC INPUT item reads the input of the UNOCC IN contact pins 19 and 20 When this item is entered the display will indicate either open or closed If the display indicates open the DIM is in VENT MIN SET and TEMP MIN SET mode If the display indicates closed
80. roperties 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 key or the RESET key Alarms SureFlow controller has visual red light and audible alarms to inform you of changing conditions The alarm levels setpoints 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 exhaust air flow is insufficient When the laboratory is operating safely no alarms will sound Example The low alarm is preset to activate when the room 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 Th
81. rse 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 the E P or electric actuator Part Two Control system is not controlling continued Sensor does not calibrate Pressure sensor red LED is blinking Figure 9 Damper is full open or full closed will not move Sensor communications not working DIP 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 f control output test passes verify damper is rotating correct direction see damper rotating opposite direction If damper is rotating correctly and setpoint cannot be reached DIM will fully rotate damper to get as close to setpoint as possible Air balance needs to be adjusted 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 9 ON ON OFF Switch Pressure OFF FOR REFERENCE SPACE ON FOR CONTROLLED SPACE ON FOR ADDRESS 1 Sensor OFF FOR ADDRESS 1 Incorrect pressure sensor address Problem with sensor slow uniform blink Communication fast burst of non uniform blinking Red LED is constantly on Technical Section O
82. rson other than Seller The foregoing 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
83. supply damper position for supply high flow calibration The SP LOW CAL menu items are used to obtain a correct flow measurement output see Calibration section All flow stations need to have a SP LOW CAL established on initial set up The SP HIGH CAL menu items are used to obtain a correct flow measurement output see Calibration section All flow stations need to have a SP HIGH CAL established on initial set up The RESET CAL menu item is used to clear the field calibration of both supply flow stations The END OF MENU item informs the user that the end of a menu has been reached The user can either scroll back up the menu to make changes or press the SELECT or MENU key to exit out of the menu These menu items do not appear on Mode 8636 BAC or Model 8636 8636 LN 0 to 255 0 to 255 0 to 30 000 CEM 0 to 14100 L S 0 to 30 000 CEM 0 to 14100 L S Setup Checkout The Model 8636 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 Model 8636 uses a unique control sequence that combines flow and pressure differential measurements to maintain air balance and laboratory pressure while interfacing with a thermostat to maintain laboratory temperature The overall Model 8636 control sequence seems quite complicated initially but the Theory of Operation s
84. t TSI Incorporated 2011 2013 All rights reserved Part Number 1980441 Revision H LIMITATION OF WARRANTY AND LIABILITY effective June 2011 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 pe
85. th the keystroke procedure please see Software Programming for a detailed explanation This section provides the following information e Complete list of menu and all menu items e Gives the menu or programming name e Defines each menu item s function what it does how it does it etc e Gives the range of values that can be programmed e 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 setpoints 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 8636 controller menu items continued on next page 40 Part Two SETPOINTS SETPOINT DOOR SETP UNOCC SETP VENT MIN SET COOLING FLOW TEMP SETP UNOCC TEMP MIN SUP DAMP MAX UP DAMP MIN EXH DAMP MAX EXH DAMP CONTROL SPEED SENSITIVITY SUP CONT DIR EXH CONT DIR KC VALUE TI VALUE REHEAT SIG REHEAT DIR TEMP DB TEMP TR TEMP Ti ALARM LOW ALARM HIGH ALARM DOOR LOW ALM DOOR HI ALM MIN SUP ALM ALARM RESET AUDIBLE ALM ALARM DELAY DOOR DELAY MUTE TIMEOUT DIAGNOSTICS CONTROL SUP CONTROL EXH CONTROL TEMP SENSOR INPUT SENSOR STAT DOOR SWITCH UNOCC SWITCH SUP1 FLOW IN SUP2 FLOW IN TEMP INPUT ALARM RELAY CONFIGURE CALIBRATION UNITS SE
86. thentication The Model 8636 s owner will then be unable to reclaim the Model 8636 over the network The LON Menu Item will replace the Network Address Menu Item on SureFlow controllers provided with the LonWorks board UONIES ISOuU2et L CONFIGURE MENU continued MAC Address MAC ADDRESS ACCESS CODES ACCESS CODES END OF MENU The MAC ADDRESS assigns the device an address on 1 to 127 the MS TP BACnet network This address must be unique for each device on the BACnet network The ACCESS CODE item selects whether an access ON or OFF code pass code is required to enter any menu The ACCESS CODE item prevents unauthorized access to all menus If the ACCESS CODE is ON a code is required before the menu can be entered Conversely if the ACCESS CODE is OFF no code is required to enter the menu 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 MAC ADDRESS Menu Item will replace the Network Address Menu Item on SureFlow controllers provided with the BACnet MSTP board Pc OM Hed CALIBRATION MENU SENSOR SPAN SENSOR SPAN ELEVATION ELEVATION TEMP TEMP CAL CALIBRATION The SENSOR SPAN item is used to match or calibrate the SureFlow velocity sensors to the average room pressure velocity as measured by a portable air velocity meter A sensor zero shou
87. tive positive setpoint and that the high alarm is a greater negative positive value than setpoint CC OM Hed CONFIGURE MENU NETWORK ADDRESS NET ADDRESS The UNITS item selects the unit of measure that the FT MIN m s H2O controller displays all values except calibration span Pa These units display for all menu items setpoints alarms flows etc The NET ADDRESS item is used to select the Modbus 1 to 247 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 items The RS 485 network can initiate a change at any time When the SERVICE PIN option is selected the Model SERVICE PIN 8636 sends a broadcast message containing its Neuron or ID and program ID This is required to install the Model GO UNCONFIGURED 8636 on the LonWorks network or to reinstall the Model 8636 after using the GO UNCONFIGURED command Selecting the GO UNCONFIGURED option resets the Model 8636 s authentication key This is required in the event a foreign network tool inadvertently acquires a Model 8636 and installs it with network management au
88. to DIAGNOSTICS menu CONTROL TEMP A number between 0 and 255 will be displayed Pressing the A key increases the number Pressing the W key decreases the number Change the CONTROL value to read 0 or 255 Note valve position Press an arrow key to change 0 to 255 or 255 to 0 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 CONTROL menu TEMP CONTROL menu item Change direct to reverse or reverse to direct to change control output direction 57 58 This page intentionally left blank Part Two Appendix A Specifications Room Pressure Module Display FANGS EEN PIC CUIAGCY enea E a EN RESONON EE Display Update cccccsseecececesseeeeeceeseeeeeseeeaees Inputs SWOR RN a Unoccupied SWITCH wm FOWA regeert Temperature In Outputs SUDDIY CONTO Neesi a iea Exhaust Contolera a Reheat Control LOW Alarm Range ccccsseeeeeeeeeeeeeeeeeeeseeeeeeens High Alarm Range ccccsssseeecseseeeeeeeeeeseeeeesens Alana GOMAC EE General Operating Temperature cccceeeeeeceeeeeeeeeeeeees Internal Scan Hate PUL e EEN 0 20000 to 0 20000 inches H2O 10 of reading 0 00001 inches H2O 5 of reading 0 5 sec SPST N O Switch Closing switch initiates condition SPST N O Switch Closing switch initiates condition 0 to 10 VDC 10002 platinum RTD TC 385 0 100 C
89. ts An explanation of the operator panel follows the figure Red 2 Line Alarm Digital Display Light Green Keys Safe Light Figure 3 SureFlow Controller 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 continuously scrolls information about room pressure and other variables programmed flow air changes per hour etc The variables that scroll depend on the options installed As an example if an alarm condition occurs the variable that normally scrolls STANDARD STANDARD NORMAL will change to read ALARM will state type of alarm low pressure high pressure flow NOTE When switch input pins 11 amp 12 is closed the word standard is replaced with door on display 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 funct
90. ts 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 setpoints are in one menu alarm items in another etc The menu items and all related information is listed in table format and includes programming name description of menu of item range of programmable values and how the unit shipped from the factory default values 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 TSI flow station transducer The Maintenance and Repair Part section covers all routine maintenance of equipment along with a list of repair parts The Troubleshooting section is split into two areas mechanical operation of the unit and system performance Many external variables will affect how the unit functions so it is critical to first determine if the unit is having mechanical problems i

Model 8636 SUREFLOW Room Pressure Controller Operation

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