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EBC 31 Modulating Draft Control

1. AUX1 Dry Contact Normally Open Output to Appliance 10 0 250V 8A AUX10 input Boiler 10 Thermostat Input 10 250 V AC DC Load Pos AUX10 input Boiler 10 Thermostat Input Common Neg Power Supply L1 Phase 120 V AC Power Supply N Neutral PE Ground Fan Motor Supply L1 Phase Fan Motor Supply Nreg Neutral PE Ground If the optional TRIAC board add on is used the control can control fans operating at 1x120 V AC IMPORTANT If both exhaust and intake functions are used the triac board defaults to intake but the control can be programmed to operate the TRIAC board for the exhaust function as well Connect the multi plug from the add on board to the mainboard as shown in Fig 10 Connect the terminals as needed The terminal layout is shown in Fig 12 elepelete 67 68 Tf L1 N SUPPLY d Fig 12 3110073 EBC31 US 150602 13 4 4 Wiring of Ashcroft XTP sensor The Ashcroft XTP sensor is wired as shown below The wiring to the Ashcroft XTP sensor is always the same while the wir ing on the EBC31 control depends on whether it is to be wired for exhaust or intake operation Ashcroft XTP sensor 40 41 39 48 49 47 Exhaust Intake 4 5 Wiring of the control for priority operation The control features priority operation which is used only in case of a power failure or mecha
2. Exhaust VFD1 wn Intake VFDz 9 Damper OUT 9n Triac board 9 USB Data log USB User Intake Max Normal Normal Off Internal 144 User interface Language Units LCD backlight LCD contrast Alarm Reset 3110073 EBC31 US 150602 ENG inW C H 1a BOSS Automatic Save Configuration Up and Download of Configuration file Upload settings File Mo fille selected Current settings Upload Settings Remember to right click and choose Save destination as Link Download Config file Reset to factory data Factory Reset 3110073 EBC31 US 150602 25 5 7 5 Upload Firmware The Upload Firmware page lets the user upgrade the firmware using the Ethernet connection Further more the Reboot button can be used if the user wishes to reboot the controller remotely LO a CHIMNEY DRAFT TECHNOLOGY I O Status Configuration Upload Firmware Pressure Curves and Log Network Configuration a Gl ee Eee Firmware Update Gennemse Ingen fil valgt Upload firmware Reboot Copyright 2015 exodraft exodra 26 3110073 EBC31 US 150602 f 6 Settings and troubleshooting 6 1 Troubleshooting Most terminal connections are monitored for proper operation LED lights indicate operating status If a light is lit it indi cates everything is functioning properly while a light out indicates a problem on the circuit it monitors In additio
3. intake Outdoor Controller Pressure Sensor or copper tube Silicone tube ee Max 50 feet 13 m Control wire Max 300 feet 100 m and or exhaust Stack Probe 7 Control wire Silicone tube Max 300 feet 100 m or copper tube Max 6 feet 2 m Fig 3 3 2 Mounting of control The control can be mounted directly on a wall or similar The mounting holes are located inside the control as shown in Fig 4 The distance between the control and the transducer should not exceed three hundred 300 feet Mounting holes 3110073 EBC31 US 150602 9 3 3 Mounting of transducer Attention must be paid to the position and location of the transducer Fig 5 shows the required position Failure to follow this instruction may result in an inoperable system e An Ashcroft XTP sensor used for sensing draft should be mounted within six 6 feet of the stack probe An Ashcroft XTP sensor used for sensing room pressure should be mounted within fifty 50 feet of the Outdoor Pressure Probe Fig 5 3 4 Installation of stack probe if applicable The probe page 6 is inserted into the chimney or stack at the point where the draft should be kept constant This could be at the appliance outlet in the vent or similar Use a 1 4 drill bit to drill a hole in the sid
4. EBC31 US 150602 7 2 Specifications 2 1 Dimensions and capacities exodraft EBC31 control Power supply V 1x120VAC Max Amperage without A 1 6 TRIAC board 7 9 Max Amperage with TRIAC A board Esumg 0 8 Relay rated load AC1 8 A 250V AC AC3 370W AC15 3A 120V AC15 1 5A 240V DC1 8 A 24 V DC Output With TRIAC board VAC Terminal block wire cross sec AWG 14 to18 tion solid or multicore Number of wires per terminal C in mm 4 22 107 Weight Ibs kg 8 9 4 0 EMC standard Emission EN 50 081 1 EN 50 082 2 Immunity Ashcroft XTP sensor Power supply VDC 14 36 gt Amperage Output VDC Operating temperature F C Tolerance inWC Pa Dimensions D in mm 0 10 0 160 17 70 0 8 96 2 2 55 4 6 118 4 1 104 4 5 115 ius E in mm F in mm G in mm Weight Ibs kg Chimney probe Dimensions H in mm 4 25 108 lin mm 3 50 89 exOdraft 8 3110073 EBC31 US 150602 d 3 Mechanical installation 3 1 Location The control and the transducer must be installed inside preferably in the mechanical room boiler room The control does not need to be installed in an enclosure Fig 3 shows how the components are connected The transducer cannot be mounted inside an airtight enclosure It uses the boiler room pressure as reference pressure
5. The following terms are used throughout this manual to bring attention to the presence of potential hazards or to important information concerning the product DANGER CAUTION Indicates an imminent hazardous situation which Indicates an imminent hazardous situation which if not avoided will result in death serious injury or if not avoided may result in personal injury or substantial property damage property damage AN TO REDUCE THE RISK OF FIRE ELECTRICAL SHOCK OR INJURY TO PERSONS OBSERVE THE FOLLOWING 1 Use this unit in the manner intended by the manufacturer If Association NFPA and the American Society for Heating Refrig you have questions contact the manufacturer s distributor atthe eration and Air Conditioning Engineers ASHRAE and the local address or telephone number listed on the front of the manual code authorities 2 Before servicing or cleaning the unit switch off at service panel 5 This unit must be grounded and lock service panel to prevent power from being switched on accidentally How to use this manual This installation manual does not contain any system design 3 Installation work and electrical wiring must be done by a quali documentation System design documentation is available from fied person s in accordance with applicable codes and standards ENERVEX 4 Follow the appliance manufacturer s guidelines and safety Accessories and variable frequency drives are not covered by this standards such as thos
6. once every 24 hours in case the fan has not been operating during the previous 24 hour period EBC31 is tested and listed to the Standard for Industrial Control Equipment UL Standard 60947 and CSA C22 2 No 14 10 as well as UL378 Standard for Draft Equipment The EBC31 contains the following EBC31 control unit pressure transducer Ashcroft XTP relay board optional triac board optional MODS damper board Optional silicone tubing stack probe and user manual 1 3 Warranty Complete warranty conditions are available from ENERVEX 3110073 EBC31 US 150602 1 4 EBC31 control components The EBC31 control is built up around a main board that controls all basic functions The main board controls draft exhaust and air supply intake functions It can provide 0 10 V DC signals for Variable Frequency Drives VFDs an actuator or other devices accepting a 0 10 V DC control signal It also allows interlock of up to 6 appliances for control circuit voltages be tween 12 V AC and 240 V AC 12 V DC and 240 V DC and has an integrated Proven Draft Switch PDS function An external PDS is therefore not required The main board layout is shown below in fig 1 EBCS1 MODS ADD ON AG m aa E ibe orat 1 TS E un E RELAY 5 ionic areri Main Board D m DEN C yue E T gt za EE 1 Mainboard mEME 6 Quick connect socket to add on board 2 Relay Board or TRIAC Board optional 7 Ope
7. pressure it shows up as a positive value on the display The lowest possible value is 0 012 inWC Most applications require a setting in the range of 0 012 inWC to 0 100 inWC Atmospheric appliances Category lI are always in the low range while all other appliances can be anywhere The 96 value indicates the relative setting of the total range of the sensor The inWC units can be changed to Pa in the menu 512 There is no need to set this value if the control is used to control the supply of combustion air 3110073 EBC31 US 150602 17 Menu 12 EXHAUST OPERATING MODE The control can operate the fan s in either continuous or intermittent mode The mode can be changed via the displa in menu 12 and 22 Note Continuous mode only works if Priority mode is off menu 451 In continuous mode the fan operates continuously During times when the heating appliance s is not operating the fan will still operate although at its lowest capacity Some exhaust will be pulled through the appliance The chimney is always primed and there is no real need for pre and post purge functions The energy consumption in this mode is minimal In intermittent mode the fan only operates if at least one appliance is operating When no appliance s is operating the fan shuts down In this mode pre and post purge functions are very important and must be set This mode offers the lowest energy consumption If a heating system operates constantly or t
8. sensor Continuous or intermittent operation In intermittent continuous mode the exhaust fan runs only if one or more boiler intermittent inputs are active 1800 ariable or fixed speed 1800 Select variable if the post purge should be controlled Variable FIX 20 100 by the XTP sensor or have a fixed speed NI Un LO the set point Alarmdela Min voltage Max voltage N E UJ O 5 Q A Wm e C1 S xz ulm mluful gt ziz Z gt 2S Er N ressure type UJ intermittent Operation mode Pre purge _ PREPURGE 32 PEED MODE MI arible Postpurge POST PURGE IME 42 Operation mode 5 N NIN gt A UJ j Varible N _ _ 0 1800 _____ _ bo aibe 1 0 1800 o ANGE MIN XTP minimum pressure in Pa 500 500Pa OPa ANGE MAX ROPERTIES _ __ _ 5 _ Negative gt 50 64 267 Negative 300 96 267 Positive NIN Un Ca N Select the alarm limit of the draft The value is in of the set point Alarm limit draft N lf 267 Positive gt 150 300 LARM DELAY PEED MIN 6 5 26 Ti amp HNIAKET lntegralgain 0320 6 O A PAAR ae a Pn ee ee Sa eee I
9. 3110073 EBC31 US 150602 Installation and operation manual EBC31 j C US LISTED Intertek READ AND SAVE THESE INSTRUCTIONS Product information Chapters 1 2 Mechanical installation Chapter 3 Electrical installation Chapter 4 Start up and configuration Chapter 5 Maintenance and troubleshooting Chapter 6 Job name Installer Installation date Distributor contact information ENERVEX Inc T 800 255 2923 info enervex com s www enervex com exOdraft 2 3110073 EBC31 US 150602 Contents O 1 Product information f TIFUN 00T 71 T TU r 4 1 2 T OIG ee oe AE A eee eee bare kansas 4 1 4 EBC31 control components 5 226 can 4146 aie 9 aa baden e qo 6166 s a 44088 gsbsea 5 O f 2 Specifications 2 1 Dimensions and capacities RTT IET TM 7 d 3 Mechanical installation Delt LOCION e TTTC 8 S2MOUMING OP HD usxeuasct satsquekwddaquegdiqu eed qid adr dei a PUER R endear 8 3 3 Mounting OF transducer v21 1121926625661 t60iie94etglisoa ron Pda 9 3 4 Installation of stack probe if applicable _ 9 3 5 Installation of outdoor pressure probe if applicable 10 l 4 Electrical installation A l General erresire trr REETrr RAINERS S E ERRNEGONEES aT 0 2700 ca an cai 11 4 2 Relay board 001 REOR E ERE A ERR de VUE PURISER queue ad IR DURO d 12 4 3 TRIAC Doard CONNECHONS ssa aire cea i0n s0 g DODIY did
10. Fig 14 The keypad part names and functions are A UP KEY Used to move the cursor up or increase the value of a parameter Vf CONFIRM KEY Used to select a parameter or confirm a different setting v DOWN KEY Used to move the cursor down or increase the value of a parameter E3 ABORT KEY Used to exit a parameter or to manually reset an alarm ALARM INDICATOR When red light is lit it indicates an error that must be corrected ex6draft 16 3110073 EBC31 US 150602 5 4 Initiation of control When power is supplied to the control it will go through a start up procedure to detect and check all components and appliances installed During this procedure the display will show the following if a XTP sensor is connected on both Intake and Exhaust input EBC31 SOFTWARE VERSION 2 XX EXHAUST SENSOR INTAKE SENSOR ADD ON EXT TRIAC FOUND APPLICATION EXHAUST amp INTAKE EXHAUST ON or OFF INTAKE ON or OFF The control is ready 5 5 Basic control set up Once power is turned ON the control can be programmed Most parameters are programmed at the factory and do not need to be changed The most common parameters are shown below To enter the setup menu press the WV key for more than 5 seconds The password 3142 must be entered using the up and down buttons and after that press the v key Menu 11 SET EXHAUST For setting the draft or exhaust pressure Although the value when measured in the field is negative
11. P input x x V AUX XTP sensor input voltage po Pere m OFF Draft Input I O status lw aw Kp ON OFF IU oi onis NU o cs RR RR RR ON OFF 430 Application APPLICATION EXHAUST amp INTAKE During start up the presentence of XTP sensors and MODS board sets the application Possible systems 1 INTAKE 2 EXHAUST 3 EXHAUST amp INTAKE 4 EXHAUST amp INTAKE amp DAMPER TRIAC board configuration If only one XTP sensor is connected the Exhaust application will be selected If both XTP sensors is present the TRIAC board will be INTAKE EXHAUST 43 Triac board TRIAC BOARD CONNECTED TO EXHAUST tied to Intake Jaa Overide JovRID O EN AEN ANNE eee eee AMEEEEEEEEEEN can be selected BEBE LUENB 7 aedi ee NEN can be selected 443 Alarm mode ALARM MODE Select ON if alarm state should be activated if ON OFF OVERRIDE is selcted C 2 JOpios OIHION 0 o O 451 Prioritized duty PRIORITY If there has been a draft alarm the controller will ON OFF ON activate the first active boiler After 1 minute the next boiler will be activated etc A maximum of n 1 boilers will be activated If 5 boilers were active maximum 4 will be active The function will stop if all boilers are inactive or after 2 hours Lee em meme 00 HN fans if the boilers has not been active for 24 hours 453 Allow prime Selecting a number from 0 250 will enable the prime 0 250 s off Off fun
12. REPE ERR 6860011566 23K RUE acea 12 4 4 Wiring OF Ashcroft XTP sensor ven eo kk Yd opt EI RACER C I e ERRORS CORE a 13 4 5 Wiring of the control for priority operation_ 13 z 5 Startup and configuration 5 1 Sequence of operation cau ki e e BA thai a ERE ERG Eo pc 3 01 ORE DR wae 14 2 2 Pre operation inspection sauces Rees RAT oe EUG REP US IPRC CS FL EE KAEE BN ME 15 5 3 Key panel identification and operation 15 5 dTHnitlatlonJcbeohlfola 2o ERERHEETO RIS ESPRICERRICIUERPRER PERS RID EP IPOD 16 55 Basle COMMONS ClO c6 ev tun dada bowed e ER es banaue ce Ue orn Mew ne 16 5 6 Detailed control programming x2 etn n4 na POR RR RE ARCA NRI ORA 18 5 WODIBESN ACO cocina Cane adt Cn edt du REGE AANEREN HIER t o DTE A 19 5 7 1 Network configuration uestes Te doce EGRE I Va deett PUE TER RF 69 dd 20 Dold WO LIU MT M eee aes 21 5 7 3 Pressure Curves and LOG s sso dcin es 6i rop Ves eden a qa veu Ber TR ET FERE 04 44 22 DT A COMMOUN AVION est 1210 neci cnp Bee Ren CK delen pedro eb a p dele C 23 5 LA COMMOUIATION 262 9 99 9 ierre e IE ESI SRFIEODETOKELDERIU Ed ees 24 55d ploSO FMW B carentes para ud ooh GR RUE rur ade tt dans een dc dna 25 M 6 Settings and troubleshooting SNB Uere MT gai a09000100215 110 5 032004 0100g g1f64 ae ay paren mame ee EEPE auton 26 OZ Ua E e aac 1102207615 5 5e 27 3110073 EBC31 US 150602 3 Symbol legend
13. SEEMS 31 Alarm Status ERROR Hheerrorisshownhee Cd ____ 32 Alarmlog JERRORLOG ThelastiOalarmswillbesavedinthemenu f CS Selecting AUTO will automatic reset the alarm MAN AUTO AUTO after 15 seconds If MAN is selected the i has to be pressed SERVICE EMEN CL X Version no VERSION Software version is showed LLL O VIEW POSS AUX OUT XXX XXX In this menu the status of the boiler I O is shown By pressing v the AUX OUT relays can be activated by pressing up and down Multiple activations of the v button will move from relay 1 to 6 9g exodraft N N 6 6 N UJ UI ujziz ue Aa jwvimI v A KA r U gt rm zi Es m m gt 3 A z S O rn rn NIN A NIN w WW J m N m 421 UJ URNER I O AUX IN XXX XXX NI NI N 28 Menu Sub function menu di o Display RELAY OUT XXXX RELAY IN XXXX 3110073 EBC31 US 150602 Description Default If a Relay board is present the I O status is shown Otherwise Relay board not found is displayed By pressing v the AUX OUT relays can be activated by pressing up and down ultiple activations of the v button will move from relay 1 to 6 Ee uos meer T EXH VFD x xV OFF EERT m e INT VFD x xV OFF TRIAC board voltage status lf no TRIAC board is pre xxxV OFF sent TRIAC board not found is displayed 426 MODS BOARD AUX XT
14. Start Other fault possibilities are shown below Red alarm diode flashes Indicates the control operates the appliances in prioritized mode 3110073 EBC31 US 150602 27 6 2 Settings Menu Sub function Draft set point Operation mode Description Range Adjustment of exhaust setpoint 2 95 af sensor Continuous or intermittent operation In intermittent Continuous mode the exhaust fan runs only if one or more boiler Intermittent inputs are active D 5 XHAUST ET EXHAUST 796 Intermittent Pre purge PRE PURGE Pre purgesettings y IME 0 1800 UJ at UJ Un V4 S U m m g m o UO c 7 S S z m O UO m by the XTP sensor or have a fixed speed Postpurge POST PURGE o 41 Time IME fjPostpurgeseting o1800 o CS by the XTP sensor or have a fixed speed Sensor QO LLL ANGE MIN XTP minimum pressureinPa 500 500Pa Jo ANGE MAX 50 Pa ROPERTIES eS Alarm limit draft Select the alarm limit of the draft The value is in of If 167 Negative gt 50 64 167 Negative 80 96 144 96 167 Positive If 167 Positive gt 150 300 LARM DELAY 1205 PEED MIN MENU 164 PEED MAX Maksimum speed of the fan MENU 163 10096 XHAUST Xp XHAUSTTi Integralgain CC RESSURE MODE NTAKE ice een re ETE Intake set point ET INTAKE 2 95 af
15. amp VFD2 terminals where 10 V DC is maximum speed The Fan Control Module sends 0 to 120 V AC to control single phase fans when they are used The FCM defaults to control the Intake fan when both Intake and Exhaust applications are used If the EBC31 draft reading is out of acceptable range 64 96 deviation for 15 seconds the control will go into Alarm status and open all of the AUX RELAY contacts that shut down the appliances When draft is met again it will function as stated above 3110073 EBC31 US 150602 15 Continuous operation For continuous operation change the parameter in menu 12 and 22 to continuous and make sure that Priority mode is set to off in menu 451 AUX INPUT connections are not used since the Control always attempts to maintain the pressure set point regardless of appliance status The AUX INPUT LEDs remain lit in Continuous operation and all other EBC31 functions remain the same as in Intermittent Operation 5 2 Pre operation inspection After mounting and wiring has been completed check the control for the following items before applying power e check for wiring errors e verify that there are no wiring chips screws etc remaining inside the controller check that all screws and terminal connections are tight e verify that no exposed wire ends are touching other terminals 5 3 Key panel identification and operation When AC power is applied to the control the keypad panel display will show the following
16. ction This allows the boilers to be activated even though no sufficient draft is present pese FACTORY If YES is selected a factory reset will be per YES NO m formed 47 Manuel mode MANUEL MODE Manual mode gives the user a tool to check if the fans works correctly or not The function will stop after 6 hours or by pressing the X button No boilers will be activated if the draft is not suf ficient 471 VFD1 manual service EXHAUST VFD1 Manual service of the VFD1 The function is time lim 0 100 BE ited and therefore it has no min max limits Selecting 0 2 OFF other than 0 will enable the function 472 VFD2 manual service INTAKE VFD2 Manual service of the VFD2 board The function is 0 10096 BENE time limited and therefore it has no min max limits T MEM Selecting other than 0 will enable the function 473 Triac manual service TRIAC BOARD Manual service of the TRIAC board The function is 0 10096 BE time limited and therefore it has no min max limits T MEN Selecting other than 0 will enable the function 48 Newok NETWORK Tp 44i DHCP bHCP Selecting YES sets the controller to DHCP manuall 483 ICPpot TCPPORT SelecteitherlCPport80or8080 1 80 8000 80 O 434 WEB WEBSURVEILANCE Notimplemented YES NO NO O 485 Current settings CURRENT SETTINGS ShowstheCurrentlPa
17. ddressandsubnetmask O 486 Subnet Mask Subnet Mask Subnet Mask of the network with DHCP Off nam xu 3110073 EBC31 US 150602 29 Menu Sub function Display Description menu 48 Gateway Gateway Gateway of the network with DHCP Off 49 USB configuration USB CONFIG S O BM ee oe Selecting YES will format the USB flash drive YES NO Notice All data will erased 492 Data Log DATA LOG USB Selecting USB will store the alarm log on the USB INTERNAL flash drive INT will store the log in the internal memory E eee E Slecting YES provides the possibility to select con YES NO FILE fiqurationfiles stored on the USB flash drive pe eem FILE tion to the USB flash drive BB dona il 7 mil NN WARE firmware by means of a USB Stick 5 Userlnterfae USERINTERFACE fd 51 Display JDiPLAY OP J il Language LANGUAGE Language NG FRA ESP O Z g MD h y c er O O z p Nn z D O 512 Presureunts UNTS Pat or inWC units a inWC 513 LCD backlight LCD BACKLIGHT LCD backlight turned on or not The USE parameter 8 OES will cause the backligt to be turned on if a button is pressed BACNET MODULE Only applicable with future version 3 xx software MODS MENU 621 Alarm limit ALARM LIMIT If the damper cannot reduce the draft there will be 500 an alarm 0 100 Minimum opening of the damper 62 Maximu
18. e of the chimney for the probe Acceptable positions are shown below ae iu If possible the distance A should be equal to 3 times the diameter of the chimney This will improve accuracy Fig 6 Connect the stack probe to the transducer using the silicone tube Make sure the tube is connected to the proper transducer port as show in Fig 7 XTP Sensor Exhaust Stack Probe m Fitting LO Connect tubing for stack probe here Fitting HI Leave open for room pressure Fig 7 exodraft 10 3110073 EBC31 US 150602 3 5 Installation of outdoor pressure probe if applicable The outdoor pressure probe should be mounted in a location as free as possible from rooftop obstructions The choice of location should also consider routing of silicone tubing into the building to minimize tubing run on the roof Install the probe on an existing structure like a pole radio or TV antenna mast Alternately the L shaped bracket can be at tached directly to any wall or rooftop It is recommended that the full length of tubing 50 feet be used Excess tubing should be coiled at some convenient loca tion rather than be cut off Longer lengths are available Obstructions such as trees chimneys signs and buildings can cause turbulence which result in abnormal and thus inaccurate static pressure Position the probe as far from the sources of The Ashcroft XTP sensor is connected to the outdoor pressure probe as shown below
19. e period from when there is a call for heat until the control allows the appliance to start assuming the supply fan is operating at the proper capacity The set ting can be anywhere from 0 to 1800 seconds There is no need to set this value if the control is used to control the draft or exhaust pressure Menu 24 SET INTAKE POST PURGE When operating in intermittent mode it is important to set the post purge Post purge is the period from when the appli ance shuts down until the control allows the fan to shut down assuming there are no more products of combustion in the chimney system The setting can be anywhere from 0 to 1800 seconds There is no need to set this value if the control is used to control the draft or exhaust pressure 5 6 Detailed control programming Menu 492 USB logging The EBC31 can be set to log on a USB momory stick if the menu 492 is set to USB If this is done two files will be created one with the alarm log and one with the values of the XTP sensors and 0 10V The files are CSV files The output format is Unix time Exhaust XTP 0 1024 Intake XTP 0 1024 Exhaust VFD 0 1024 Intake VFD 0 1024 Damper Out 0 1024 MODS XTP 0 1024 The value between 0 1024 is a fraction of 10V meaning that a value of 423 equals 4 13 V Menu 495 Firmware upgrade The EBC31 can be firmware upgraded using a USB memory stick Can also be done using the web interface on a PC see page 24 Insert the USB memory stic
20. e published by the National Fire Protection manual Please refer to these component s individual manuals exodraft 3110073 EBC31 US 150602 7 1 Product information 1 1 Function Use Listings 1 2 Shipping The exodraft EBC31 is a true PID based fan speed control used to maintain a constant pressure or draft in a venting system It can be used with RSV RSIF RSIB IPVB BESF BESB and SFTA models to con trol single phase 120 V AC motors directly and three phase 208 460 V AC motors indirectly via a VFD variable frequency drive that adjusts the motor speed The intended use of the control includes but is not limited to controlling the e combustion air supply system e draft in mechanical draft system serving individual or multiple heating appliance systems e damper position in a modulating over draft system to ensure proper draft is maintained in individual or multiple heating appliance systems duct pressure in dryer venting systems e duct pressure in ventilation systems Use of the control is not restricted to any type of fuel or type of heating appliance dryer or venting application The EBC31 can simultaneously control an exhaust fan an intake fan or a draft damper Any two of these can be controlled simultaneously or they can be controlled individually Adding an optional MODS damper Board provides the possibility to control an exhaust fan an intake fan and a draft damper simultaneously The unit features plug a
21. e room and send a 0 10 V DC signal back to the XTP1 exhaust or XTP2 intake terminals e The current pressure reading is displayed on the EBC31 It displays INT or EXH then the pressure reading or both if the application is Intake and Exhaust e The DRAFT INPUT terminals must be closed by an external Proven Draft Switch or by a manually installed jumper before any appliances are allowed to operate e The AUX RELAY contacts will close only for the appliances that are calling for heat when draft set point pressure is met and DRAFT INPUT is closed When the AUX RELAY closes the LED between the terminals will light and the appli ance will be permitted to operate normally The EBC31 will individually close the AUX RELAY contacts for other appliances as they call for heat via their AUX INPUT connections while proper draft is maintained e The AUX RELAY contacts will open for individual appliances if their AUX INPUT voltage is lost or open all AUX RE LAYS if the draft is not met or no appliance calls for heat The EBC31 modulates draft pressures by increasing or decreasing the fan speed in response to changing pressure signals The pressure shown on the display is always in inches of water column of relative vacuum draft The exhaust fan increases speed to increase the draft felt by the appliances The intake fan increases speed to decrease the draft read on intake only systems Fan speed is controlled by the 0 to 10 V DC output signals at VFD1
22. en displays Found or Not Found for Exhaust and Intake modes e The control checks for any add on modules and displays Relay Found Triac Found or Nothing Found e The EBC31 system application is displayed as intake only exhaust only or intake and exhaust e The differential pressure reading will be or in reference to the type of pressure being maintained The pressure reading will be displayed to the hundredths decimal place The display reads NOT USED when an XTP sensor is not connected Intermittent operation In intermittent operation both AUX INPUT and AUX RELAY connections are made between each appliance and the EBC31 This allows the control to start and stop the fan when an appliance is attempting to fire and to prevent the appliances from operating if proper draft is not met The EBC31 initiates pressure control when a voltage signal from any of the six appliances is sensed at the AUX INPUT terminals No electrical path connects the AUX INPUT terminals so no current passes between them The LED be tween the AUX INPUT terminals lights when a call for heat voltage is sensed The Control sends a 100 96 output to the controlled fans in the system via the fan control module for 120 V AC fans or the VFD1 exhaust or VFD2 intake 0 10 V DC outputs for 3 phase fans controlled by Variable Frequency Drives The Ashcroft XTP pressure transducers sense the draft between the exhaust stack and the room or between the outsideair and th
23. er monitor the values of the XTP sensors and the VFD outputs in real time Furthermore the Alarm Log can read on this page O d ra ft CHIMNEY DRAFT TECHNOLOGY Network Configuration I O Status Pressure Curves and Log Configuration Upload Firmware E 1 ale exodraft EBC31 Pressure Log W Red XTP1 Value V Blue XTP2 V Green VFD1 100 v Purple VFD2 Yellow 2 DAMPER 80 UJ Maroon AUX XTP Teal Triac 60 9 20 0 18 23 29 18 23 39 18 23 49 18 23 59 16 24 09 16 24 19 16 24 29 16 24 39 6 23 34 16 23 44 16 23 54 16 24 04 16 24 14 16 24 24 16 24 34 Time h m s Log LOADED Alarm Log e 7 5 2015 15 20 25 POWER FAULT e 7 5 2015 14 51 03 POWER FAULT Copyright 2015 exodraft 3110073 EBC31 US 150602 23 5 7 4 Configuration The Configuration page lets the user change all the parameters of the EBC31 as well as down uploading configuration files to the controller draft eC C ra CHIMNEY DRAFT TECHNOLOGY Network Configuration I O Status Pressure Curves and Log Configuration Upload Firmware a 8 SS m System Configuration This page allows the configuration of the system settings Save Configuration Exhaust Intake Set exhaust 9o 17 Set intake 9 3 Setpoint range 2 to 95 Current Setpoint absolute Current Setpoint absolute 0 102 inWC 0 018 inWC Exhaust mode Intermittent v Inta
24. he time between cycles is very short less than 5 10 minutes continuous mode should be considered Otherwise intermittent mode should be selected There is no need to set this value if the control is used to control the supply of combustion air If used with a damper actuator set for continuous operation Menu 13 SET EXHAUST PRE PURGE When operating in intermittent mode it is important to set the pre purge Pre purge is the period from when there is a call for heat until the control allows the appliance to start assuming the fan is operating at the proper capacity The setting can be anywhere from 0 to 1800 seconds There is no need to set this value if the control is used to control the supply of combustion air Menu 14 SET EXHAUST POST PURGE When operating in intermittent mode it is important to set the post purge Post purge is the period from when the appli ance shuts down until the control allows the fan to shut down assuming there are no more products of combustion in the chimney system The setting can be anywhere from 0 to 1800 seconds There is no need to set this value if the control is used to control the supply of combustion air Menu 21 SET INTAKE For setting the room pressure The lowest possible value is 0 012 inWC Most applications require a setting of 0 012 inWC The 96 value indicates the relative setting of the total range of the sensor The inWC units can be changed to Pa in the men
25. hermostat Input 10 250 V AC DC Load Pos AUX4 Input Boiler 4 Thermostat Input Common Neg AUX5 Dry Contact Normally Open Output to Appliance 5 0 250 V 8 A av NPUT Fan output Nreg MOTOR is regulating on the neutral side and cannot be connected to other circuits Ai E an AUX2 AUX3 INPUT 23 24 25 26 27 28 29 30 3 32 33 34 35 36 37 38 39 40 42 41 43 44 45 46 47 48 50 49 N a ES AUX5 AUX6 INPUT INPUT AUX4 INPUT H N OVERR AUX5 Input Boiler 5 Thermostat Input 10 250 V AC DC Load Pos AUX5 Input Boiler 5 Thermostat Input Common Neg AUX6 Dry Contact Normally Open Output to Appliance 6 0 250 V 8 A AUX6 Input Boiler 6 Thermostat Input 10 250 V AC DC Load Pos AUX6 Input Boiler 6 Thermostat Input Common Neg Draft Input Supply to EXTERN AL switch 24 V DC Draft Input Return from EXTERN AL switch 24 V DC Override Input positive 0 250 V AC DC Override Input common Alarm Relay Dry Contact Normally Open Close on Alarm Condition 0 250 V AC 8 A VFD1 Relay Dry Contact Normally Open for Exhaust 0 250 V Output to Exhaust VFDI positive 0 10 V Output to Exhaust VFD1 common Power Supply to Exhaust Transducer positive 24 V DC Output to Exhaust Transducer common Input from Exhaust Transducer positive 0 10 V VFD2 Relay Dry Contact Normally Open f
26. iguration Pressure Curves and Log Configuration Upload Firmware sh i ZS exodraft EBC31 Board Configuration This page allows the configuration of the board s network settings CAUTION Incorrect settings may cause the board to lose network connectivity Recovery options will be provided on the next page Enter the new settings for the board below Copyright 2015 exodraft Host Name EXODRAFT Enable DHCP v IP Address 169 254 010 010 Gateway 169 254 001 00 1 Subnet Mask 255 255 000 000 Port 80 x Username admin Password IITIIIT Confirm Password IITITIT save Config 3110073 EBC31 US 150602 21 5 7 2 1 O Status The I O status page lets the user monitor all the I O of the EBC31 including XTP sensor readings in Volt 0 10V d ft a CHIMNEY DRAFT TECHNOLOGY Network Configuration I O Status Pressure Curves and Log Configuration Upload Firmware a Fl mm exodraft EBC31 Status I O view Burner I O AUX OUT 010000 AUX IN 010000 Relay board RELAY OUT 0000 RELAY IN 0000 Exhaust I O EXHAUST XTP 1 6V On EXHAUST VFD 1 5V On Intake I O INTAKE XTP 0 0V On INTAKE VFD 1 5V On Triac board TRIAC BOARD Not Found Damper 1 7V 1 5V Draft input Override in Alarm output On Off Off Software version Version 2 00 Build date May 19 2015 13 14 21 USB USB Status Not present _ od a m ma o a Fa exOdraft 22 3110073 EBC31 US 150602 5 7 3 Pressure Curves and Log The Pressure Curves and Log page lets the us
27. in Fig 8 XTP Sensor Intake Outdoor Pressure Sensor Fitting HI Connect tubing for outdoor pressure sensor here Fitting LO Leave open for room pressure Fig 8 3110073 EBC31 US 150602 7 4 Electrical installation 4 1 General A DANGER 11 Turn off electrical power before servicing Contact with live electric components can cause shock or death NOTE EBC31 is designed for 1 x 120 V AC power supply only Fan output is regulating on the neutral side and cannot be connected to other circuits The terminals are connected as shown for additional information go to chapter 5 1 Terminal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Use Power Supply L1 Phase Power Supply N Neutral Ground AUX1 Dry Contact Normally Open Output to Appliance 1 0 250 V 8 A AUX1 Input Boiler 1 Thermostat Input 10 250 V AC DC Load Pos AUX1 Input Boiler 1 Thermostat Input Common Neg AUX2 Dry Contact Normally Open Output to Appliance 2 0 250 V 8 A AUX2 Input Boiler 2 Thermostat Input 10 250 V AC DC Load Pos AUX2 Input Boiler 2 Thermostat Input Common Neg AUX3 Dry Contact Normally Open Output to Appliance 3 0 250 V 8 A AUX3 input Boiler 3 Thermostat Input 10 250 V AC DC Load Pos AUX3 Input Boiler 3 Thermostat Input Common Neg AUX4 Dry Contact Normally Open Output to Appliance 4 0 250 V 8 A AUX4 Input Boiler 4 T
28. k with the firmware in the USB connector on the front of the control Go to the 492 menu and select the correct file to be programmed Press the v button to start the update The update takes approx two minutes Note If the programming fails power off the control Press the x button and power up the control again Doing this will reupload the latest working firmware The EBC31 control has a detailed sub menu for individual parameter settings See page 28 for more details on parameters and programming 3110073 EBC31 US 150602 19 5 7 Webinterface To enter the web server on the EBC31 the controller must be connected to a ethernet network or directly to a PC The con troller has DHCP enabled as factory setting In menu 485 the current IP address is shown and this address must be entered in the web browser to access the EBC31 The username is admin and the password is exodraft AN NOTE The EBC31 shall be protected behind a firewall if connected to the Internet The webinterface can be used to monitor the operation of the EBC31 changing the configuration upgrading the firmware uploading download configuration files etc exOdraft 20 3110073 EBC31 US 150602 5 7 1 Network configuration The Network Configuration page lets the user change the different network parameters as well as the username pass word The password only applies to the webinterface draft I O Status CHIMNEY DRAFT TECHNOLOGY Network Conf
29. ke mode Intermittent v Pre purge Pre purge Time s 01 Time s o Speed mode Fix 100 Speed mode Variable Post purge Post purge Time s o Time s Oo Speed mode Variable Speed mode Variable _ v Purge times range 0 to 1800s Sensor Sensor Range min Pa 0 Range min Pa 0 2 Range min limits 500 to 500Pa Range max Pa 150 Range max Pa 150 Range max limits O to 1000Pa Properties Properties Alarm limit 645 Alarm limit 144 100 Setpoint 100 Setpoint Alarm limit range 50 to 80 of setpoint for Exhaust in Negative mode and Intake in Positive mode 100 to 300 of setpoint for Exhaust in Positive mode and Intake in Negative mode Alarm delay s 15 Alarm delay s 15 Alarm delay range 0 to 120s Speed min 15 Speed min 15 Speed max 100 Speed max 100 Speed min max ranges 0 100 Exhaust Xp 15 4 Intake Xp 152 Exhaust Ti 8c Intake Ti 8 Xp Ti range 0 to 30 Pressure mode Negative Pressure mode Negative v Will be continuned on the next page exodraft 24 5 7 4 Configuration Copyright ii 2015 exodraft MODS Damper Alarm limit 100 Setpoint Alarm delay s Output min 9 9 Output max 50 Damper Xp Damper Ti Hysteresis Reaction Delay Service Service mode Triac board Override Exhaust Intake Damper Alarm mode Option Priority Bearing cycle Prime s Manual mode
30. m opening of the damper Proportional gain 1 l e6 i MODSI Integral gain 627 Hysteresis HYSTERESIS MODS hysteresis 628 Reactiondelay J REACTION DELAY MODS reaction dela 63 Economizermodule ECONONOMIZER w JFuture release 300 sec Menu 624 enu 623 100 96 5 sec 5 96 00 96 NI I I1 ae N TI TT Al rri fo C1 exOdraft 30 3110073 EBC31 US 150602 User Settings Please record and keep the following information It will ease servicing the control after installation Q1 EXHAUST setting Q2 EXHAUST Operating Mode Q3 EXHAUST Pre purge Q4 EXHAUST Post purge Q5 INTAKE setting Q6 INTAKE Operating Mode Continuous Intermittent circle one Q7 INTAKE Pre purge seconds Q8 INTAKE Post purge seconds Q9 ROTATION CHECK Yes No circle one 3110073 EBC31 US 150602 31 exOdraft Distributor in USA amp Canada ENERVEX VENTING DESIGN SOLUTIONS ENERVEX Inc P 770 587 3238 1685 Bluegrass Lake Parkway F 770 587 4731 Alpharetta T 800 255 2923 GA 30004 info enervex com www enervex com _ exOdraft
31. n fault codes are shown on the display The fault codes are A1 Draft Exhaust Insufficient draft pressure Can be caused by 1 Chimney fan does not have enough capacity 2 Mechanical or electrical fan failure 3 Blocked chimney 4 Introduction of excessive dilution air 5 XTP sensor not responding correctly A2 Draft Intake Insufficient intake air supply Can be caused by 1 Supply fan does not have enough capacity 2 Mechanical or electrical fan failure 3 Blocked air inlet our louver 4 Excessive exhaust from exhaust fans located in mechanical room A3 Power Fault Indicates there has been a power fault A4 XTP Exhaust Indicates a disconnected signal from the XTP Sensor on the exhaust side to the control Can be caused by 1 Loose connections 2 Faulty XTP sensor 3 Faulty controller A5 XTP Intake Indicates a disconnected signal from the XTP sensor on the intake side to the control Can be caused by 4 Loose connections 5 Faulty XTP Sensor 6 Faulty controller Indicates that the control has not been able to release the heating appliance s within 15 min utes A7 Alarm Override ndicates alarm has been ignored A8 Draft Input issing signal from PDS function Indicates a faulty function A9 RS485 error No communication between EBC31 and BACnet network A10 Hardware error No communication between relay board or MODS board A11 Priority he draft has been insufficient and therefore the control has gone into Priority mode A6 Error
32. nd play to automatically monitor all terminals and register components attached to the control during initial start up It comes pre programmed from the factory but can be further programmed in the field if needed The control will allow continuous or intermittent operation of a mechanical draft fan The EBC31 can be configured either by using the LCD dot display and buttons or by using the ethernet interface and a webbrowser on a computer 1RS485 port can be used to interface a BACnet network using MSTP Requires version 3 xx software The control has an integrated safety system to assure the heating appliance will shut down in case of fan failure or control failure A unique priority operation function will probe the operating conditions and allow as many appliances as possible to operate without fan assistance provided the operation is considered safe by the integrated safety system The EBC31 has six 6 heating appliance interlock cir cuits as standard but can be expanded in multiples of four 4 with the use of an additional relay board or the ES12 relay control The control can be operated with a manual reset function reset button or an automatic reset func tion A self diagnostic panel with LED s monitors all connection terminals for easy service and trouble shooting Provided the integrated safety system is satisfied interlocked heating appliances are allowed to operate A bearing cycle activation function rotates the fan motor s
33. nical failure at the fan loca tion The feature will automatically evaluate if one or more appliance s can operate safely without mechanical draft This function is constantly monitored by the PDS function and only if the min draft point is satisfied will operation be allowed On a call for heat the control will first probe the appliance connected to the AUX1 input AUX1 relay terminals secondly the appliance connected to the AUX2 input AUX2 relay terminals and so on Consider the operating priority of the appli ances when wiring to the control List appliance priority here Priority Appliance type or number Connects to terminals 1 AUXT input relay 2 AUX2 input relay 3 AUX3 input relay 4 AUX4 input relay 5 AUX5 input relay 6 AUX6 input relay In case the highest priority appliance is not operating and a low priority appliance calls for heat the control will allow the low priority appliance to operate exOdraft 14 3110073 EBC31 US 150602 UF 5 Startup and configuration 5 1 Sequence of operation The exodraft EBC31 initializes when 120 V AC power is supplied It checks for the presence of integrated components such as add on boards and pressure sensors The control does not detect variable frequency drives or damper actuators e The software version is displayed on the LED screen e The control checks for intake and exhaust application by sensing current drawn by an intake or exhaust XTP prop erly connected e tth
34. or Intake 0 250 V Output to Intake VFD positive 0 10 V Output to Intake VFD common Power Supply to Intake Transducer positive 24 V DC Output to Intake Transducer common Output to Intake Transducer positive 0 10 V ALARM rmm 27 04 RELAY VFD 2 I RELAY l gt lo I i 2 dcs any deron DE n d t a a malay G XHAUST exOdra 12 4 2 Relay board connections If the optional Relay Board is used the control can handle up to 10 appliances 3110073 EBC31 US 150602 Connect the connector from the add on board to the main board as show below in Fig 10 Fig 10 Connect the terminals as needed The terminal layout is shown in Fig 11 51 52 53 54 55 56 57 58 59 60 61 62 Fig 11 4 3 TRIAC board connections Terminal Use AUX7 Dry Contact Normally Open Output to Appliance 7 0 250V 8A AUX7 input Boiler 7 Thermostat Input 10 250 V AC DC Load Pos AUX7 input Boiler 7 Thermostat Input Common Neg AUX8 Dry Contact Normally Open Output to Appliance 8 0 250V 8A AUX8 input Boiler 8 Thermostat Input 10 250 V AC DC Load Pos AUX8 input Boiler 8 Thermostat Input Common Neg AUX9 Dry Contact Normally Open Output to Appliance 9 0 250V 8A AUXO input Boiler 9 Thermostat input 10 250 V AC DC Load Pos AUXO input Boiler 9 Thermostat Input Common Neg 63 64 65 66 67 68 69 70 71 72
35. rating status indicators 3 Terminals 8 Ethernet port 4 Fuse protection for mainboard 9 RS485 port 5 Quick connect socket to keypad and display 10 Expansion board optional 11 BACnet RS485 optional Three add on boards are available A TRIAC board is available so the control can operate a 1 x 120 V fan or ventilator with out the need for an external drive A Relay Board is available for applications with more than 6 appliances The control can only accept a single add on board at a time If there is a need for using the TRIAC board as well as the Relay board install the TRIAC in the EBC31 and use an ES12 Relay Box in lieu of the Relay Board Board layouts for the TRIAC and the Relay Boards are shown below in fig 2 Triac Board 1a gt t ng EBC31 RELAY ADD ONw e Relay Board O7 9107810100 MAINBQARD A LE AT f ANX10 s120YAC J 60Hz ne MD VES 1 INPUT INPUT C 1 Terminals 4 Quick connect plug 2 Fuse protection 5 Operating status indicators 3 Spare fuse exodraft 3110073 EBC31 US 150602 A MODS add on board can be used to control a damper in a CASV MODS MODS system It provides a 0 10V signal out and can also be used to monitor pressure using the MODS XTP input During start up the EBC31 will detect the board if installed BC51 MODS ADD ON 7107880100 HR amp MODS Board 1 OPS Terminals 3 0 10V Output 2 XTP Input Terminals 4 C NO NC Relay Output 3110073
36. u 512 There is no need to set this value if the control is used to control the draft or exhaust pressure Menu 22 INTAKE OPERATING MODE The control can operate the fan s in either continuous or intermittent mode The display only shows the chosen mode In continuous mode the supply fan operates continuously During times when the heating appliance s is not operating the supply fan will still operate although at its lowest capacity Some pressurization of the mechanical room may occur The room is always primed and there is no real need for pre and post purge functions The energy consumption in this mode is minimal Note Continuous mode only works if Priority mode is off menu 451 In intermittent mode the supply fan only operates if at least one appliance is operating When no appliance s is operat ing the supply fan shuts down In this mode pre and post purge functions are very important and must be set This mode offers the lowest energy consumption If a heating system operates constantly or the time between cycles is very short less than 5 10 minutes continuous mode should be considered Otherwise intermittent mode should be selected There is no need to set this value if the control is used to control the draft or exhaust pressure exOdraft 18 3110073 EBC31 US 150602 Menu 23 SET INTAKE PRE PURGE When operating in intermittent mode it is important to set the pre purge Pre purge is th

EBC 31 Modulating Draft Control

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