EBC 30 Modulating Pressure Control
Contents
1. NOTES PDOss 3s nus SS n Q1 SET EXHAUST ROG Q1 SET EXHAUST DN T SS n S 0 01 inWC 0 01 inWC n 0 012 In 0 506 NS D is 0 012 ALII S Uns n in S n in S n S 360 s nis S n S 360 s nis T SS n S n 0 012 rini 0 506 D is 0 012 ALTI S ins n in S n in S n S 360 s nOs S n S 360 s nOs AE ym Um PROG i 30 S S S ings Un ENERVEX VENTI2. 2 0 250V 8A 31 Override Input positive 0 250VAC DC 11 AUX2 Input Boiler 2 Thermostat Input 32 Override Input common 10 250VAC DC Load Pos 33 34 Alarm Relay Dry Contact Normally Open 12 AUX2 Input Boiler 2 Thermostat Input Close on Alarm Condition 0 250VAC 8A Common Neg 35 36 VFD1 Relay Dry Contact Normally Open 13 14 AUX3 Dry Contact Normally Open for Exhaust 0 250V Output to Appliance 3 0 250V 8A 37 Output to Exhaust VFD1 positive 0 10V 15 AUX3 input Boiler 3 Thermostat Input 38 Output to Exhaust VFD1 common 10 250VAC DC Load Pos 39 Power Supply to Exhaust Transducer 16 AUX3 Input Boiler 3 Thermostat Input positive 24VDC Common Neg 40 42 Output to Exhaust Transducer common 17 18 AUXA Dry Contact Normally Open 41 Input from Exhaust Transducer positive Output to Appliance 4 0 250V 8A 0 10V 19 AUXA Input Boiler 4 Thermostat Input 43 44 VFD2 Relay Dry Contact Normally Open 10 250VAC DC Load Pos for Intake 0 250V 20 AUXA Input Boiler 4 Thermostat Input 45 Output to Intake VFD positive 0 10V m EO EN iOpen 46 Output to Intake VFD common i A oe 47 Power Supply to Intake Transducer nput Boiler ermostat Inpu 10 250VAC DC Load Pos 48 50 Output to Intake Transducer common 49 Output to Intake Transducer positive 0 10V SUPPLY 120VAC IN
3. Switch or by a manually installed jumper before any appliances are allowed to operate 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 appliance will be permitted to operate normally The EBC 30 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 The AUX RELAY contacts will open for individual appliances if their AUX INPUT voltage is lost or open all AUX RELAYS if the draft is not met or no appliance calls for heat The EBC 30 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 O to 10VDC output signals at VFD1 amp VFD2 terminals where 10VDC is maximum speed The Fan Control Module sends 0 to 120VAC 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 EBC 30 draft reading is out of acceptable range 6496 deviation for 15 seconds
4. Systen 1 2 Shipping The EBC 30 contains the following EBC 30 control unit Relay board optional Pressure transducer XTP2 Triac board optional Silicone tubing e Stack probe User manual 1 3 Warranty Complete warranty conditions are available from ENERVEX Inc ENERVEX VENTING DESIGN SOLUTIONS 3002180 12 12 1 4 EBC 30 Control Components The EBC 30 control is built up around a main board that controls all basic functions In addition a Triac board and a relay board are available for special functions The main board controls draft exhaust and air supply intake functions It can provide 0 10VDC signals for Variable Frequency Drives VFDs an actuator or other devices accepting a 0 10VDC control signal It also allows interlock of up to 6 appliances for control circuit voltages between 12VAC and 240VAC 12VDC and 240 VDC 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 Fig 1 Main Board rear AR AR AR AN 5 2 E W E md ES a E Aa AA AA 2 R sia F a j gt See et ia CO gt B JE UE 4E 3C 3E C C KS at R F Li o 283 e grs 1 Mainboard 5 Quick connect socket to keypad and display 2 Relay Board or Triac Board optional 6 Quick connect socket to add on board 3 Terminals 7 Operating status indicators 4 Fuse protection for mainboard Two add on boards are available A Tr
5. o 1 0 0 lp 625 TRACBOARRD TRIACBOARD_____ 1 626 DRAFTINPUT__ DRAFT INPUT Rp 627 jOverideinpt OVERRIDEIN J _________ lp 628 AlamRelay ALARM OUTPUT J A pp 629 jAppliceion APPLICATION P ST Triac board TRIACBOARD INTAKE EXHAUST 64 OVERRIDE OVERRIDE Rp 641 jDratMode EXHAUST OFF NORMAL MAX MAX po 642 Intake Mode INTAKE JOFF NORMAL MAX NORMAL 643 AlrmMode ALARMMODE ON OFF OFF s jJOPTION jJOPTION 651 jPriortized Duty PRIORITY JON OFF L Lose pese eanne oae onio on A O CL CL EE c RR RN JFACTORYRESET FACTORY______ YES NO ENERVEX VENTING DESIGN SOLUTIONS 19 3002180 12 12 Resetting to Factory Defaults PROG Q1 SET EXHAUST 0 01 inWC 2 EXHAUST 61 VERSION 66 FACTORY 53 NO Q10 SERVICE MENU 66 FACTORY _ NO 66 FACTORY NOTES Press PROG key for 3 seconds to access menu Scroll to Q10 SERVICE MENU and press PROG Scroll to 6 SERVICE and press PROG Scroll to 66 FACTORY and press PROG Change NO to YES and press PROG Remove supply power to control Wait 30 seconds and reapply power Control is now reset to factory default User Settings Please record and keep the following information It will ea
6. 0 012 inWC Most applications require a setting of 0 012 inWC The value indicates the relative setting of the total range of the sensor There is no need to set this value if the control is used to control the draft or exhaust pressure Q6 INTAKE OPERATING MODE The control can operate the fan s in either continuous or intermittent mode The display only shows the chosen mode See also Q2 about the dipswitch which can be very beneficial for the supply of combustion air or make up air especially where there are chillers fans etc that consume air 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 In intermittent mode the supply fan only operates if at least one appliance is operating When no appliance s is operating 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 t
7. 3002180 12 12 EBC 30 Modulating Pressure Control 7 Product Information Mechanical Installation 4 Electrical Installation 22 Start Up and Configuration f Maintenance and Troubleshooting Intertek READ AND SAVE THESE INSTRUCTIONS P 770 587 3238 F 770 587 4731 T 800 255 2923 info enervex com www enervex com ENERVEX Inc 1685 Bluegrass Lakes Pkwy Alpharetta GA 30004 Installation amp Operating Manual Chapter 1 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Job Name Installer Installation Date ENERVEX VENTING DESIGN SOLUTIONS 3002180 12 12 1 Product Information UN elo 3 A NM eee euecceds 3 uo uU Rin EMEN Mm 3 1 4 EBC 30 Control Components ccccccseeeceeeeceeecseeceeeesseeseeesaes 9 2 Specifications 2 1 Dimensions e CapaciliGS ccoo pa Ux EU tee 5 3 Mechanical Installation k OCA OM eea A E E EE E 6 3 2 Mounting of COPI OL essiri iai 6 3 3 Mounting of Transducer scssccnconcessncscnsadesensaarnnseeinneedtienedanmsenasndtemesatonne T 3 4 Installation of Stack Probe if applicable ssssssessss 7 3 5 Installation of Outdoor Pressure Probe if applicable 8 4 Electrical Installation 4 1 Geperal escocia 9 4 2 Relay Board Connections occccooccnccnc
8. C motors directly and three phase 208 460VAC 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 e Controlling combustion air supply system Controlling the draft in mechanical draft system serving individual or multiple heating appliance systems Controlling the damper position in a Modulating Over Draft System to ensure proper draft is maintained in individual or multiple heating appliance systems Controlling the duct pressure in dryer venting systems Controlling the duct pressure in ventilation systems The EBC 30 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 Use of the control is not restricted to any type of fuel or type of heating appliance dryer or venting application The unit features Plug and 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 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 applianc
9. L SHOCK OR INJURY TO PERSONS OBSERVE THE FOLLOWING 1 Use this unit in the manner intended by the manufacturer If you have questions contact the manufacturer at the address or telephone number listed on the front of the manual 2 Before servicing or cleaning the unit switch off at service panel and lock service panel to prevent power from being switched on accidentally 3 Installation work and electrical wiring must be done by a qualified person s in accordance with applicable codes and standards 4 Follow the appliance manufacturer s guidelines and safety standards such as those published by the National Fire Protection Associations NFPA and the American Society for Heating Refrigeration and Air Conditioning Engineers ASHRAE and the local code authorities 5 This unit must be grounded ENERVEX Iu VENTING DESIGN SOLUTIONS How to use this manual This installation manual does not contain any system design documentation System design documentation is available from any authorized ENERVEX representative Accessories fans and variable frequency drives are not covered by this manual Please refer to these component s individual manuals 3002180 12 12 O f 1 Product Information 1 1 Function Use The EBC 30 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 control single phase 120VA
10. NG DESIGN SOLUTIONS 17 3002180 12 12 f 6 Maintenance and Troubleshooting Most terminal connections are monitored for proper operation LED lights indicate operating status If a light is lit it indicates everything is functioning properly while a light out indicates a problem on the circuit it monitors In addition fault codes are shown on the display The fault codes are Display Explanation A1 Draft Exhaust Insufficient draft pressure Can be caused by Chimney fan does not have enough capacity Mechanical or electrical fan failure Blocked chimney Introduction of excessive dilution air XTP2 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 XTP2 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 XTP2 Sensor 6 Faulty controller Indicates that the control has not been able to release the heating A6 Error Start is appliance s within 15 minutes A7 Alarm
11. Override Indicates alarm has been ignored A8 Draft Input Missing signal from PDS function Indicates a faulty function Other fault possibilities are shown below Red alarm on main board is lit Indicates a malfunction Can be caused by 1 No communication between main board and display Make sure the cable is connected This error will shut down the appliances within 20 seconds Red alarm diode flashes Indicates the control operates the appliances in prioritized mode Yellow light UP is lit continuously Indicates the control is accelerating the fan speed If it stays on constantly it indicates a system fault This can be caused by 1 Wiring problems 2 Aclogged tube or probe 3 Aleaking chimney system 4 Inadequate fan capacity Yellow light DOWN is lit continuously Indicates a malfunction Can be caused by 1 If a Triac Board is installed this is an indication that the neutral connection is shared with other equipment It must be a dedicated line between the control and the fan ENERVEX Iu VENTING DESIGN SOLUTIONS 18 3002180 12 12 EBC 30 Factory Settings S25 EXHAUST EXHAUST amp h 3QP 5 pa Draft SetPoint SETEXHAUST X 396 9576 of sensor range P 22 jOboeraion Mode OPERATION jContinuous Intermittent Intermittent po 23 JPREPURGE PREPURGE _____ 0 1 231 Time O TIME oaeo 0 pT 232 Operation Mo
12. TAKE ENERVEX VENTING DESIGN SOLUTIONS 3002180 12 12 4 2 Relay Board Connections If the optional Relay Board is used the control can handle up to 10 appliances Connect the multi plug from the add on board to the mainboard as show below in Fig 10 Connect the terminals as needed The terminal layout is shown in Fig 11 Terminal Use 51 52 AUX7 Dry Contact Normally Open Output to Appliance 7 0 250V 8A b3 AUXT input Boiler 7 Thermostat Input 10 250VAC DC Load Pos 54 AUXT input Boiler 7 Thermostat Input Common Neg 55 56 AUX8 Dry Contact Normally Open Output to Appliance 8 0 250V 8A 57 AUX8 input Boiler 8 Thermostat Input 10 250VAC DC Load Pos 58 AUX8 input Boiler 8 Thermostat Input Common Neg 59 60 AUX9 Dry Contact Normally Open Output to Appliance 9 0 250V 8A 61 AUXO9 input Boiler 9 Thermostat input 10 250VAC DC Load Pos 62 AUXO input Boiler 9 Thermostat Input Common Neg 63 64 AUX1 Dry Contact Normally Open Output to Appliance 10 0 250V 8A 65 AUX10 input Boiler 10 Thermostat Input 10 250VAC DC Load Pos 66 AUX10 input Boiler 10 Thermostat Input Common Neg 4 3 Triac Board Connections If the optional Triac Board Add On is used the control can control fans operating at 1x120VAC IMPORTANT If both Exhaust and Intake functions are used the Triac Board defaults to Intake but the control can be programed to operate the Triac Board for th
13. ariable FIX20 100 35 SENSOR SENSO 07 lp 351 Min Pressure RANGEMIN 0 500 50Ppa o0 lp 352 Max Pressure RANGEMAX 0 100Pa 150Pa 36 PARAMETERS PROPERTIES o gt Z 1 1 1 361 Alarm Limit Draft ALARMLIMIT 100 3005 300 362 Alarm Delay l ALARMDELAY 0 120s 15s 363 Min Voltage SPEEDMIN J0 MENU364 1096 364 Max Voltage SPEEDMAX MENU363 100 100 1 36 Xxp A NTAKEXp 030 1 1 1 15 1 1 39 jr J NTAKETi JOo30 1 8 367 Pressure Type PRESSUREMOD J or Negative A AS ISLAN DEE eS SSS NNI 1 41 j Langage LANGUAGE Eng Fr Sp English po 422 Units 9 JQ UNT Pa liwc inWC ll 943 Display Lights LIGHT CON OFF ON os JALARM UMEN KAMEN AN 1 51 jAarmmsetus ERROR ll 52 JAamlg J ERRORLOG J J 53 RESET RESET MAN AUT A AUT 6 SERVICE J SERVCE 5 5 o per Version Now VERSION RI AAA OA IRE er RE Rp 621 JBURNERVO JAUXOUTXXXXXX J pT 622 RELAYBOARDb RELAY OUTXXXX pp 1 623 JEXHAUSTI O JEXHXTPxxVOFF J o 1 8624 NTAKEUO INTXTPxxVOFF
14. cncnnncnnnnncnnnonnnnnnnncnnnnncnnnnnrononanenos 10 4 3 Triac Board CONNEctiONS cccccocccccoconccocnncononnnononononanonononnnnnncnnonanenes 10 4 4 Wiring of XTP2 SO ISOE soeiict ctae a enr rus MES eePu e QU bpcte p PLACE tote cadere rs tes 11 4 5 Wiring of the Control for Priority Operation sssssssss 11 5 Startup and Configuration 5 1 Sequence of Operation occooccccoccccnccccnonccncncincnnencnnonnnronnncnonaninnnns 12 5 2 Pre Operation Inspection sees 13 5 3 Key Panel Identification and Operation essssssssse 13 5 4 Initiation OF Control sessions medicion 14 5 5 srcex nyo bel 14 5 6 Detailed Control ProgrammMing ccccoccncccocncccocnnncnannnonannncnnnnononanononos 16 5 7 Programming Sequence occccoccccccconnconccncncnoncononnnnnnannnonannnnnnnnnnnnananenos 17 6 Maintenance and Troubleshooting 18 Symbol Legend 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 Indicates an imminent hazardous situation which if not avoided will result in death serious injury or substantial property damage Caution Indicates an imminent hazardous situation which if not avoided may result in personal injury or property damage TO REDUCE THE RISK OF FIRE ELECTRICA
15. de SPEED MODE Variable FIX20 100 FIX100 pa POST PURGE jPOSTPURGE 1 241 Time TIME 0180 O A 242 Operation Mode SPEED MODE Variable FIX 20 100 Variable SENSOR SENSORS Rp 251 Min Pressure RANGEMN 500 508 amp 1 0 Ap 252 Max Pressure RANGEMAX 0 100Pa 150Pa PARAMETERS JPROPERTES o 1 261 Alarm Limit Draft ALARMLIMIT 50 8059 64 262 AlrmDely ALARMDELAY jJ0 12200 415 263 Min Voltage SPEEDMN JO MENU264 15 Ap 264 Max Voltage SPEEDMAX MENU263 1005 10096 S 26 Xp EXHAUST Xp Joso 15 1 26 mi EXHAUST Ti oso 4 267 jPresure Type PRESSUREMOD Wor __________ Negative 3 A J NTAKE J NTAKE 31 ItakeSetPoit SET INTAKE 396 9596 of sensor range 32 jOperaion Mode OPERATION jContinuous Intermitent Intermittent 33 J PREPURGE PREPURGE o o 331 Time TIME jOo180 o 1 1 o P 332 Operation Mode SPEED MODE Variable FIX20 100 a jPOST PURGE POSTPURGE gt 1 341 Time TIME o 0 J0180 o Po 342 Operation Mode 1 SPEED MODE _ V
16. e 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 Terminal Use 67 Power Supply L1 Phase 120VAC 68 Power Supply N Neutral 69 PE Ground 70 Fan Motor Supply L1 Phase 71 Fan Motor Supply Nreg Neutral f 1 J 4d 72 PE Ground ed PE Fan output is regulating on the neutral side SUPPLY MOTOR A O and cannot be connected to other circuits 10 ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 4 4 Wiring of XTP2 Sensor The XTP2 sensor is wired as shown below The wiring to the XTP2 sensor is always the same while the wiring on the EBC 30 control depends on whether it is to be wired for exhaust or intake operation Terminal connections XTP2 Sensor when used for 4 Note Wire terminals 7 amp 8 in series with terminals 29 amp 30 on the EBC30 eloelg when using 2 XTP2 sensors COM ae XIP2 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 mechanical failure at the fan location 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 O
17. en 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 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 supply of combustion air If used with a damper actuator set for continuous operation Q3 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 Q4 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 appliance 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 Q5 SET INTAKE For setting the room pressure The lowest possible value is
18. es as possible to operate without fan assistance provided the operation is considered safe by the integrated safety system The EBC 30 has six 6 heating appliance interlock circuits as standard but can be expanded in multiples of four 4 with the use of an additional relay board or the ES 12 Relay Control The control utilizes a high precision pressure transducer which has a self auditing feature that will also assure the heating appliance will shut down in case of transducer failure See Chapter 5 1 for the control s sequence of operation The control can be operated with a manual reset function reset button or an automatic reset function A self diagnostic panel with LED s monitors all connection terminals for easy service and troubleshooting The EBC 30 can also operate in manual mode where the user sets the constant speed Provided the integrated safety system is satisfied interlocked heating appliances are allowed to operate A Bearing Cycle Activation function rotates the fan motor s once every 24 hours in case the fan has not been operating during the previous 24 hour period Listings The EBC 30 is tested and listed to the Standard for Industrial Control Equipment UL Standard 508 17th Ed and CSA C22 2 No 14 95 as well as UL378 Standard for Draft Equipment It is listed as part of an ENERVEX CASV Chimney Automation System MCAS Modulating Combustion Air Supply System MODS Modulating Over Draft System and a MDVS Mechanical Dryer Venting
19. he control is used to control the draft or exhaust pressure ENERVEX VENTING DESIGN SOLUTIONS 15 3002180 12 12 Q7 SET INTAKE 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 supply 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 draft or exhaust pressure Q8 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 appliance 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 Q9 ROTATION CHECK There are two values available ON or OFF In the ON mode the control will activate all fans connected to the control when turned on and operate them at a very low speed so proper rotation can be easily verified when 3 phase motors are used If improper rotation is experienced appropriate action can be taken Once proper operation has been verified press the RESET button to accept all settings The above procedure is only required during the i
20. his could be at the appliance outlet in the vent or similar Use a 1 4 drill bit to drill a hole in the side of the chimney for the probe Acceptable positions are shown below If possible the distance A should be equal to 3 times the diameter of the chimney This will improve accuracy ENERVEX VENTING DESIGN SOLUTIONS 3002180 12 12 Connect the stack probe to the transducer using the silicone tube Make sure the tube is connected to the proper transducer port as shown in Fig 7 Stack Probe XTP2 Sensor Exhaust XTP2 Fitting Connect tubing for stack probe here Fitting Leave open for room pressure 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 attached 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 location 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 thu
21. iac board is available so the control can operate a 1x120V fan or ventilator without 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 EBC 30 and use an ES 12 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 O Relay Board 1 Terminals 4 Quick connect plug 2 Fuse protection 5 Operating status indicators 3 Spare fuse ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 7 2 Specifications 2 1 Dimensions amp Capacities Range of Operation inWC Pa 0 0 6 0 150 ENSE Tolerance inWC Pa 0 01 3 10 Sie oe V Control Signal mA max 10 Control Relay Max 120 VAC 8A Output VAC 10 120 Weight Ibs kg 8 9 4 0 C EMC Standard Emission EN 50 081 1 E VD O OO C Weight Ibs kg O LI oO ENERVEX VENTING DESIGN SOLUTIONS 3002180 12 12 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 transd
22. isplay 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 are always in the low range while all other appliances can be anywhere The value indicates the relative setting of the total range of the sensor There is no need to set this value if the control is used to control the supply of combustion air ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 Q2 EXHAUST OPERATING MODE The control can operate the fan s in either continuous or intermittent mode The mode can be changed via the display The display only shows the chosen mode The mode can be overridden by the dipswitches inside the cover on the print board If switches are all in ON positions the control will act as there were a call for heat for all appliance at all times This will disable pre purge post purge and prime functions This is a function that is beneficial for MODS MCAS operations and for testing troubleshooting 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 Wh
23. n 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 appliances when wiring to the control List appliance priority here Priority Appliance Type or Number Connects to terminals 1 AUX1 Input Relay 2 AUX2 Input Relay 3 AUX3 Input Relay 4 AUX4 Input Relay 5 AUXS 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 ENERVEX VENTING DESIGN SOLUTIONS 11 3002180 12 12 by 5 Startup and Configuration 5 1 Sequence of Operation The EBC 30 initializes when 120VAC 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 The software version is displayed on the LED screen The control checks for intake and exhaust application by sensing current drawn by an Intake or Exhaust XTP properly connected It then displays Found or Not Found for Exhaust and Intake modes The control checks for any add on modules and displays Relay Found Triac Found or Nothing Found The EBC 30 system application is displayed as Intake Only Exhaust Only or Intake and Exhaust The differential press
24. nitial installation or if a motor or variable frequency drive has been replaced If a power failure has occurred there is no need to check rotation and the RESET button can be pressed In the OFF mode the control does not activate all fans in low speed mode but will let them operate at any speed setting OFF mode can be used after the initial installation To access the Quick Menu press the PROG key for 3 seconds The figure on page 16 shows the sequence of programming 5 6 Detailed Control Programming The EBC 30 control has a detailed sub menu for individual parameter settings See page 19 for more details on parameters and programming To view current alarm description inside service menu press PROG and it goes to parameter 51 current alarm if alarm condition is present Must go to 5 alarm to exit ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 5 7 Programming Sequence PROG Q4 SET EXH POST PURGE 60s QU INTPOST PURGE 60s QU ROTATION CHECK
25. s Also used to accept programming RESET changes and exit the programming mode DOWN KEY Used to decrease the value of a parameter UP KEY Used to increase the value of a parameter DECELERATION INDICATOR When yellow light is lit it indicates decreasing fan speed O DOWN e ACCELERATION INDICATOR When yellow light is lit it indicates increasing fan speed ALARM INDICATOR When red light is lit it indicates an error that must be corrected e ALARM ENERVEX VENTING DESIGN SOLUTIONS 13 3002180 12 12 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 SOFTWARE VERSION 2 12 EXHAUST SENSOR INTAKE SENSOR ADD ON EXT TRIAC FOUND APPLICATION EXH ONLY or INT ONLY EXH ON or OFF INT OFF or ON The control is ready The major functions can now be programmed using the Quick menu 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 There are 9 parameters that can be programmed set prior to operation and they can be accessed through the Quick Menu Q1 SET EXHAUST For setting the draft or exhaust pressure Although the value when measured in the field is negative pressure it shows up as a positive value on the d
26. s inaccurate static pressure Position the probe as far from the sources of turbulence as possible The XTP2 sensor is connected to the outdoor pressure probe as shown below in Fig 8 XTP2 Sensor Outdoor Intake OE Pressure Sensor Fitting Connect tubing for outdoor pressure sensor here Fitting Leave open for room pressure ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 o 4 Electrical Installation 4 1 General Danger Turn off electrical power before servicing Contact with live electric components can cause shock or death EBC 30 is designed for 1x120VAC 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 Use 1 Power Supply L1 Phase 24 AUX5 Input Boiler 5 Thermostat Input 2 Power Supply N Neutral Common Neg 3 d Ground 25 26 e el eee an 5 6 AUX1 Dry Contact Normally Open UND Xa o AM Output to Appliance 1 0 250V 8A as mor Lp 7 AUX1 Input Boiler 1 Thermostat Input do 10 250VAC DC Load Pos 28 pees T Boiler 6 Thermostat Input 8 AUX1 Input Boiler 1 Thermostat Input e Aeg Common Neg 29 Draft Input Supply to EXTERNAL Suiten 24 VDC 9 10 AUX2 Dry Contact Normally Open 30 Draft Input Return from EXTERNAL switch 24 VDC Output to Appliance
27. se servicing the control after installation Q1 EXHAUST setting EXHAUST Operating Mode EXHAUST Pre purge EXHAUST Post purge INTAKE setting INTAKE Operating Mode INTAKE Pre purge INTAKE Post purge ROTATION CHECK ENERVEX Inc 1685 Bluegrass Lakes Pkwy Alpharetta GA 30004 P 770 587 3238 F 770 587 4731 T 600 255 2923 info enervex com www enervex com Continuous Intermittent circle one seconds seconds NS Continuous Intermittent circle one seconds seconds Yes No circle one ENERVEX VENTING DESIGN SOLUTIONS
28. 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 The control will also go into alarm immediately when the XTP150G detects an internal failure ENERVEX VENTING DESIGN SOLUTIONS Iu 12 3002180 12 12 Continuous Operation For Continuous Operation Dip Switch 1 amp 2 on the back of the display card on the EBC 30 door must be in the Up On position 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 EBC 30 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 Verify that there are no wiring chips screws etc remaining inside the controller e 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 EXH OFF INT OFF The keypad part names and functions are PROGRAM KEY Used to access the menu press for 3 seconds to get to the Quick menu RESET KEY Key used for resetting control and fault code
29. ucer cannot be mounted inside an airtight enclosure It uses the boiler room pressure as reference pressure XTP2 Sensor Intake Outdoor Controller Pressure Sensor XTP2 Silicone tube or copper tube Max 50 feet 13 m Control wire Max 300 feet 100 m and or XTP2 Sensor Exhaust OO Stack Probe 3 Control wire Silicone tube Max 300 feet 100 m or copper tube Max 6 feet 2 m 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 ENERVEX Iu VENTING DESIGN SOLUTIONS 3002180 12 12 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 An XTP2 Sensor used for sensing draft should be mounted within six 6 feet of the stack probe An XTP2 Sensor used for sensing room pressure should be mounted within fifty 50 feet of the Outdoor Pressure Probe 3 4 Installation of Stack Probe if applicable The probe page 5 is inserted into the chimney or stack at the point where the draft should be kept constant T
30. ure 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 XTP2 Sensor is not connected Intermittent Operation In Intermittent Operation both AUX Input and AUX RELAY connections are made between each appliance and the EBC 30 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 EBC 30 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 between the AUX INPUT terminals lights when a call for heat voltage is sensed The Control sends a 100 output to the controlled fans in the system via the Fan Control Module for 120VAC fans or the VFD1 exhaust or VFD2 intake 0 10VDC outputs for 3 phase fans controlled by Variable Frequency Drives The XTP2 senses the draft between the exhaust stack and the room or between the outsideair and the room and send a 0 10VDC signal back to the XTP1 exhaust or XTP2 intake terminals The current pressure reading is displayed on the EBC 30 It displays INT or EXH then the pressure reading or both if the application is Intake and Exhaust The DRAFT INPUT terminals must be closed by an external Proven Draft
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