Lochinvar Harmony User's Manual
Contents
1. gt A This pointer shows the currently B selected item c The BACK button returns to a previous SNNAW ONISN BACK menu without changing the selection ADJUST me Pressing The ADJUST SELECT knob PRESS TO Saves the selection to memory SELECT 2Nd returns to a previous menu ADJUST F a Rotating The ADJUST SELECT knob PRESS TO Moves the pointer up and down SELECT selections Example CHANGING VALUES PURGE DELAY 1 0 min The Purge Delay is currently 1 minute The BACK button returns to a previous BACK menu without changing the value ADJUST Rotating K The ADJUST SELECT knob changes the value this is PRESS TO indicated by a pointer from the SELECT old value to a new value PURGE DELAY 1 0 min gt 2 0 min The screen shows the old and new value ADJUST Pressing eo The ADJUST SELECT knob saves the new value 2 0 min to PRESSTO memory and returns to a SELECT previous menu The BACK button returns to a previous BACK menu without changing the value 10 USING THE MENUS MENU TYPES System Startup Settings determines the type of system For example the system is a hot water heating system with 0 10V modulating motors If the Startup Settings are not correct the Harmony can not operate the system correctly Set Point Gain Lead Stage Settings These settings might need occasional adjustment by operating personnel These are the only settings which may require chang2. Lochinvar Loc KY High Efficiency Water Heaters And Boilers INSTALLATION amp OPERATION MANUAL HARMONY TABLE OF CONTENTS FUNCTION Chatt cceececcecececeeeeeeeeeeeeeeeeeeeeees pg 2 Harmony OVEerview cecceeeeeteeseeeeeeteees pg 3 Panel Installation c cecceeseeeeeeeeeeeeeeees pg 4 Using the MenuG cecceeeeeceeeeeeees pg 10 System Startup ceeeceeeeeeeeeeeeeeeeeeeeeeees pg 11 Operating SettingS ccceeceseeseeeees pg 14 System SettinGS eeeececceeeseseeeeeeeeeeeeeeeees pg 17 Stage SCUWINGS ncccnccccnncnneacdicententcenecnencns pg 22 Reset SettingS cescececeeceeeeeeeeeeetees pg 25 TrOUDIESNOOTING eeeeeeeeeeeeeeteeeeseeeeees pg 27 POCA aie raceteitce entebuceedncdelvadcdcdelvededmadete pg 28 09 See ene en nn ee eer eee eer mes pg 30 SPECICATION GS ccchiceta tic cttardecscseutidetantaestbodecaente pg 32 This manual attempted to be complete and accurate at the time of publication Additional upgrades and new features may change Harmony functions Upgrades to this manual may occur at any time Contact the factory for further details Harmony Function Chart Depress the knob to move forward through the menus and to accept changes rotate the knob to change a setting s value The digital display shows the system status set point lead stage lt in brackets gt and status of each stage To view and adjust settings press
3. Harmony EMS terminal marked Attach the side of the 4 20mA signal to the EMS terminal marked SIGNAL If the EMS or other signal sources the current provides the excitation voltage attach the side of the 4 20mA input to the Harmony EMS terminal marked SIGNAL Attach the side of the 4 20mA input to the EMS terminal marked SHIELD IRING THE SHUTDOWN This feature can be used whenever it is desirable to turn off the Harmony from a remote location or another controller A typical use for this feature would be to turn off all boiler stages when an EMS panel no longer requires heat in the system When the Shutdown feature is enabled by closing a dry contact all active stages will immediately modulate down to low They will remain in low for 45 seconds and then turn off If the System Output relay was active it will remain active until the System Delay is over then it will also turn off The Shutdown signal must be a dry contact only No voltage can be placed across the SHUTDOWN terminals Bring the two wires from the dry contact to the terminals marked SHUTDOWN A3 A4 IRING THE SYSTEM PROVE gt m m gt O ONIYIM LAdNI INPUTS A1 A2 A3 A4 A5 A6 A7 NETWORK W gt m m gt O A8 i ae a Dry Contact A9 I lt Soe System Prove A10 7 O A Signal WARNING The SYSTEM PROVE input can not be used as a safety
4. The Last Stage Hold prevents short cycling of the Lead Stage during low load conditions Even at 1 modulation most fully modulating units are outputting at least 20 of their maximum output Some units may be outputting significantly more In low load conditions the system might require only 5 of the output of one Stage When the Harmony brings on the Lead Stage this is 20 of the output The Set Point is quickly exceeded and the Harmony turns the Lead Stage off To prolong the run time during this type of condition use the Last Stage Hold setting The Harmony will allow the system temperature to exceed the Set Point by the number of degrees selected before the Lead Stage is turned off For example with a Set Point of 160 F and a Last Stage Hold setting of 20 F the Lead Stage boiler will remain on at low modulation until the Set Point reaches 180 F Avoiding Conflicting Boiler Limits The temperature limits set on the boilers MUST be set considerably higher than the Harmony s Set Point for the reasons detailed below The Harmony sensor is located in a common header some distance from the boilers As the water enters the header and travels to the sensor location energy is dissipated Therefore the temperature in the header will correctly be lower than that registered by sensors in the boilers In addition to the normal drop experienced between the boiler s internal reading and that read by the Harmony sensor the Last St
5. limit All equipment must have its own certified limit and safety con trols as required by local codes ONIYIM LAdNI BOILER ACTVE INPUTS B1 2 B2 Z B3 Dry Contact Active Signal B4 B5 B6 B7 B8 WARNING The BOILER ACTIVE IN PUTS can not be used as a safety limits All equipment must have its own certified limit and safety con trols as required by local codes The System Prove feature is provided to check system component operation A typical use of this feature is to check for flow before firing any boiler stages When there is a call for heat the System Output activates the system pump starter When the pump establishes flow a flow switch closes together the SYSTEM PROVE input Only then can the Harmony activate boilers and modulate them as required to hold the temperature set point If the SYSTEM PROVE input is open on a call the Harmony will enable only the System Output All Stage outputs will be off when the SYSTEM PROVE input is open A factory installed jumper provides the System Prove signal Do not remove the jumper unless it will be replaced by a System Prove signal The System Prove signal must be a dry contact only No voltage can be placed across the SYSTEM PROVE A9 A10 terminals Bring the two wires from the dry contact to the terminals marked SYSTEM PROVE A9 A10 IMPORTANT Do not remove the factory installed System Prove jumper unless it is
6. select PRESS TO SELECT Setback wuss Or turn Ss to scroll presstoseect OWN wus Press to EJ select resser EMS IMPORTANT Do not select EMS Control unless an appropriately configured signal from an EMS system is correctly wired into the Harmony For additional details see pg 5 for wiring and pg 28 for EMS Control setup OUTPUT TYPE A amp B gt 4 20ma 0 10v 0 5v OUTPUT TYPE A amp B 4 20ma gt 0 10v 0 5v OUTPUT TYPE A amp B 4 20ma gt 0 10v 0 5v OUTPUT TYPE C amp D gt 4 20ma 0 10v 0 5v MODULATING MODE gt NORMAL PARALLEL MODULATING MODE NORMAL gt PARALLEL MODULATING MODE NORMAL gt PARALLEL 12 mws Press to yes select presstosetect A OQMA wows Or turn LIN to scroll PRESS TO SELECT do wn mws Press to apes select mesos NEW Repeat process for Stages C amp D mws Press to IN select PRESS TO SELECT Normal ADJUST or turn apes Sto scroll esos QW mws Press to rye select PRESS TO SELECT Parallel EMS INPUT Default Setback Not available for Reset Sensor Types Setback e This default setting allows the Set Point to be adjusted either manually at the panel or by a Visual Gold upgrade for remote communications e If desired a dry contact switch can be wired across the EMS INPUT terminals SIGNAL and SHIELD to allow the panel to hold a lower temperature Se
7. ten minutes never backing down to even 99 before a lag stage could be activated e The Lag Delay is useful in installations where one unit should usually have enough output to hold the load unless it fails or load conditions become extreme e The Lag Delay overrides the value of the Modulation Point selected for each stage Regardless of that setting the previous stage must reach 100 and stay there before another Stage can be activated e The full Lag Delay must always elapse regardless of what happens to system temperature Therefore set the Lag Delay to 0 min if you want smooth set point control from multiple units SYSTEM SETTINGS 1 Lag Delay gt Standby Time System RunOn STANDBY DELAY Value gt New Value STANDBY DELAY Value gt New Value SYSTEM SETTINGS 1 Standby Time gt System RunOn lt More Settings gt SYSTEM RUN ON Value gt New Value SYSTEM RUN ON Value gt New Value SYSTEM SETTINGS 1 Standby Time System RunOn gt lt More Settings gt SYSTEM SETTINGS 2 gt Setback Rotate Time Last Stg Hold S SETBACK Value gt New Value SETBACK s Value gt New Value wuss Press to apes Sy show PRESS TO SELECT setting wus Turn to kpi Se adjust PRESS TO SELECT value wust Press to apes select mesos eW wus Press to LI EN Se show PRESS T
8. 1 4 to 4 1 The Reset Ratio curves start at 70 F At 70 F the Harmony will require 100 F water Note that this is not the point where the Harmony will begin giving heat That point is determined by the Outdoor Cutoff next page Also note that this starting point can be changed by adjusting the Offset below For new installations with standard baseboard heating begin with a Reset Ratio of 1 1 For new installations with radiant heat begin with a Reset Ratio curve of 2 1 Adjust the Reset Ratio value in cold weather If the ambient indoor temperatures are cold in the cold weather pick the next higher Reset Ratio that is go from 1 1 to 1 1 25 If the ambient building tempera tures are warm in the cold weather pick the next lower Reset Ratio from 1 1 to 1 25 1 After adjusting the Reset Ratio curve wait at least 24 hours before making another adjustment To adjust the Reset Ratio from the main display press the ADJUST SELECT knob to obtain the Settings menu Select Set Point The Reset Ratio choices will now be shown The Offset value moves the starting point of the Reset Ratio curves see charts below Therefore any change made to the Offset will immediately change the value of the Harmony Set Point water temperature by the same amount For example if the calculated Set Point water temperature were 150 F based on the specific outdoor temperature and Reset Ratio then increasing the Offset from 0 F to 10 F would incr
9. XIGNdddV XIGNdddV MOVING AROUND THE STAGES MENUS e Pressing the STAGE button allows you to automatically scroll though the Stage A B C and D Settings Pressing the NEXT button automatically moves you through the adjustments for each stage For example after viewing the Ignition Point pressing the NEXT button will move you to the Modulation Start Pressing the NEXT button does NOT save the setting To save a new setting you MUST press the ADJUST SELECT knob Pressing the PREVIOUS button automatically returns you to the previous adjustment for a Stage without having to return to the Stage Settings menu MANUA CONVENTIONS Items on the panel knobs buttons terminals are referred to all in upper case letters and italics For example the power terminals are referred to as LINE and NEUTRAL Items on the display are referred to with an upper case first letter and italics For example the set up screen for the sensor type is referred to as Sensor Type The names of settings are referred to with an upper case first letter They will not be italicized unless specifically referring to itis when it is being displayed 29 XJqANI Symbols 4 20mA EMS Input See External Set Point 4 20mA Motors Wiring 9 B Baseboard applications 25 26 Cc Copy Settings 24 D Display Main 14 None or Garbled 27 OPN 27 SHT 27 E External Set Point 5 12 14 19 Setting the Range 28 G Gain Normal 15 Process 15 H HWR 19
10. capacity System Output is Active when Any Stage is Active This output can be used to activate a system pump combustion air damper or perform any other function that is required when any stage is active A System Prove input checks the status of components activated by the System output before stages can be activated Remote Communication Upgrade Available The Harmony can be upgraded to the Visual Gold system to monitor and control all Harmony functions from a remote location The Visual Gold upgrade also allows the Harmony to accept additional sensors to monitor their status and to provide alarms if the sensor values are not in the correct range Additional features include A purge timer a low fire adjustment a firing point setting for the next stage based on the firing rate of the current stage a lag stage timer a last stage hold adjustment and many others W gt m m gt O ONIYIM LAdNI a N Mounting Holes N os A X D X D Ny i SAFETY H GROUND 3 dl sys MUST BE a E CONNECTED 5 i Earth 120VAC Ground 60 Hz INPUTS m AI It To Temperature m TEMP Sensor Mounted in a2 KA o gt Common Header A3 C L SHUTDOWN A4 O o AG 7 S a7 A L NETWORK A8 A as CO system A10 A a ONG INSTALLATION MOUNTING THE ENCLOSU
11. for example only The Harmony will control the modulation in one percent increments based on the Set Point and Gain value PROCESS GAIN THROTTLING RANGE TABLE SYSTEM TEMPERATURE STAGES MODULATION 3 x Gain Setting Above Set Point All Stages OFF 2 5 x Gain Setting Above Set Point All Stages OFF 2 x Gain Above Set Point Lead Stage at 0 1 x Gain Above Set Point Lead Stage at 0 0 5 x Gain AboveSet Point Lead Stage at 50 At Set Point Lead Stage at 100 0 5 x Gain Below Set Point Lead Stage at 100 1 Lag at 50 1x Gain Below Set Point Lead and 1 Lag at 100 2 x Gain Below Set Point Lead and 2 Lag at 100 2 5 x Gain Below Set Point Lead and 2 Lag at 100 3 x Gain Below Set Point All Stages at 100 15 JOVLS QV SETTINGS Gain gt Lead Stage lt Stage Settings gt LEAD STAGE gt A B Cc LEAD STAGE A gt B Cc 16 wuss Press to pa Sy show PRESS TO SELECT setting ww Turn to adjust PRESS TO SELECT value wuss Press to rs uN select mesos eW LEAD STAGE Used to manually change the lead stage The Lead Stage is the first stage brought on when output is required The Lead Stage can be rotated manually or automatically The automatic rotation is recommended see pg 17 The current Lead Stage is shown in brackets on the main display Only Stages which are set to Auto Mode can be Lead Therefore not all the stages may be available when manually selecting a
12. replaced by a System Prove signal If the SYSTEM PROVE inputis not closed the Harmony will NOT activate stages WIRING THE BOILER ACTIVE INPUTS A closure across the BOILER ACTIVE terminals informs the Har mony that a boiler is running normally If the BOILER ACTIVE terminals open the Harmony registers that the Stage has encoun tered a safety limit and can not be restarted without a manual reset The Harmony will not reactivate or modulate a Stage which is not Active The Boiler Active signal is not a safety but use of these inputs will significantly improve the Harmony s set point control performance in the event of a Stage encountering a safety limit A pair of BOILER ACTIVE terminals is provided for each stage The Boiler Active signal must be a dry contact closure from the boiler controlled by that Stage s output For example the Boiler Active signal wired into terminals STAGE A Terminals B and B2 must come from the unit whose operating limits are connected to terminals OPERATING LIMIT OUTPUTS A Terminals 5 and 6 The BOILER ACTIVE terminals are dry contacts only No voltage can be placed across the them Wire the Boiler Active signals to their respective STAGE terminals STAGEA to Boiler Active Input terminals B7 amp B2 STAGE B to Boiler Active Input terminals B3 amp B4 STAGE C to Boiler Active Input terminals BS amp B6 STAGE D to Boiler Active Input terminals B7 amp B8 EMS INPUT Dry
13. the Adjust Select button Depress the button to go back through the menus or to view a setting value without changing it ey Waar Hirmirr imi Bie MENU FUNCTIONS SELECT enters menus or accepts changes ADJUST selects menu items or changes settings BACK returns to previous menu STAGE selects stage menus or next stage PREV NEXT steps through stage settings HELP PREV SYSTEM A sy rani ot Lochinvar FULL MODULATION SEQUENCING CONTROL HARMONY ini y DO NOTAPPLY ANY VOLTAGE TO SENSOR TERMINALS INPUTS ADJUST m A IT system I To Temp sensor mounted al Ol bo TEMP flin common header a3 PEO When closed all stages a4 o are turned off AS NETWORK f To network sensors system Checks status of system 5 PROVE components Tourvoor f Optional sensor enables io TEME outdoor reset BURNER ACTIVE eee B If input is not made B K EMS INPUT the Harmony will not consider it an active stage EPRE Provides remote set SYS LINE B c OPERATING LIMIT OUTPUTS D E m ed al CONNECTED NEUTRAL gt point adjustment with a 4 20mA signal MADE IN U S A MODULATION OUTPUTS A Green Ground System Output One output relay is required for screw must be controls pumps eac
14. the Offset value in mild weather If the ambient indoor temperatures are warm in the warm weather decrease the Offset If the ambient building temperatures are cold in the mild weather increase the Offset The rule of thumb for baseboard radiation is to change the Offset by 4 for every degree you wish to change the building temperatures For radiant heat applications change the Offset by 1 or 2 for every degree you wish to change the building temperature The Offset can be set from 50 to 50 F Default 64 F The Outdoor Cutoff sets at what outdoor temperature the Harmony will begin heating When the outdoor temperature is above the Outdoor Cutoff tem perature the Harmony will not activate stages The Set Point water temperature will read Off When the outdoor temperature drops to the Outdoor Cutoff tem perature the Harmony will activate the SYS relay compute the Set Point water temperature and sequence and modulate Stages to hold that Set Point The Outdoor Cutoff has a built in 2 F differential Once the SYS relay has been activated it will remain activated until the outdoor tempera ture rises to 2 F above the Outdoor Cutoff temperature If the building is too cold before the system starts raise the Outdoor Cutoff temperature The Outdoor Cutoff temperature can be set Off On or from 30 to TSE Setting the Outdoor Cutoff to Off may be used to disable the heating system during summer during maintenance or wheneve
15. to control how much a GAIN eae a see modulation is changed when the system temperature is different from the Set Point P adjust vEluer New Vatus bed J e A Gain of 0 is a good starting point for all systems PRESSTOSELECT yo ue e If during normal load conditions the system temperature tends to a GAIN TES fluctuate significantly above and below the Set Point decrease the e Z a4 aL JJ O ar rm m pain Press to Gain by two numbers for example from 0 to 2 Wait for at least 15 Value gt New Value amp select minutes before evaluating how the change has affected the system mrss NEW e If during normal load conditions the system temperature tends to remain consistently below the Set Point or consistently above the Set Point increase the Gain by two numbers for example from 0 to 2 Wait for at least 15 minutes before evaluating how the change has affected the system OPERATING MODE PROCESS Default 1 0 e The Gain acts as a throttling range around the Set Point e When the actual temperature is equal to the Set Point the lead stage will be at 100 modulation e Each throttling range above or below the Set Point controls one stages modulation linearly from 0 to 100 e The Process Gain Table below shows the relationship between the Gain and stage modulation e The Process Gain Table does not show all the possible modulation values The table is
16. 29 Default OFF Auto Standby Manual Off On The Harmony only controls the modulation of Stages set to Auto or after a delay those set to Standby None of the other settings are recommended for output Stages connected to active units Any Stage without an active unit connected and or without an output relay must be set to Off The following list describes the MODE options Auto The Harmony will control the Stage s operation to maintain the Set Point Only Stages set to Auto can be Lead Stages Standby Standby Stages can only be activated when all Stages in Auto have been at 100 modulation for a selectable period of time see pg 14 Standby is generally used when an older or less efficient unit is available but is not desired to run except under extreme load conditions A Standby Stage CAN NOT be a Lead Stage Manual The Manual Mode should only be used when testing a Stage Manual overrides the System Prove input see pg 6 The exact percent of modulation for a Stage can be set with the Manual mode Once selected the unit will immediately turn on and be modulated to the selected percentage Off Any output Stage A through D without a relay or not con nected to a physical unit should be set to Off The Off Mode can also be used to disable units which are being serviced On The On Mode should only be used when testing a Stage The On Mode overrides the System Prove input see pg 6 Once selected as On the Stage will
17. Contact Setback Signal 2 NETWORK PROVE Z 0 A To Outdoor Sensor Mounted in Shade WIRING A SETBACK The Setback feature can be used to provide the Harmony with a lower temperature Set Point when less load is required e A typical use for Setback is to lower the system temperature during the night or on the weekends when a building is unoccupied but a minimum level of heat is still required e The Setback feature can not be used with External Set Point 4 20mA EMS control or Reset operation see Startup Settings pg 11 e To adjust the amount of Setback see pg 19 e The Setback signal is wired into the EMS terminals Terminals SIGNAL and SHIELD e The Setback signal must be a dry contact only No voltage can be placed across the EMS SIGNAL and SHIELD terminals e When the EMS SIGNAL and SHIELD are closed the Setback is enabled and the Harmony will hold the lower Set Point The lower Set Point will appear on the main display indicating this condition e When the closure is removed the Harmony will revert to the higher saved Set Point Note The Setback is not equivalent to the 4 20mA input even though both wire into the EMS terminals The 4 20mA input requires a 4 20mA source which changes the Set Point in one degree increments The Setback provides a single lower Set Point CONNECTING AN OUTDOOR SENSOR For Reset Operation e To enable the reset function see System Startup settings pg 11 For Outdoor Cutoff
18. ECT knob to select EMS Control The next screen is EMS 4ma Setpoint This screen allows you to set the desired Harmony Set Point when the EMS input is 4mA The temperature range of the selection is from 100 to 240 F Rotate the ADJUST SELECT knob until the desired value is selected and then press the knob The next screen is EMS 20ma Setpoint This screen allows you to set the desired Harmony Set Point when the EMS input is 20mA The range of the selection is from 100 to 240 F Rotate the ADJUST SELECT knob until the desired value is selected and then press the knob Operation 4 20mA Temperature Example e The Set Point will vary linearly with the 4 20mA signal from the EMS 4 20ma Input MOD 4 Set Point signal as shown by the example set points in the chart on the right 4ma adjustable setting 100 F e Either 4 or 20mA can be the bottom or top of the Set Point range 8ma 125 F e Ifthe signal from the EMS is not connected is less than 3 9mA or is 12ma 150 F greater than 20 1mA the Harmony Set Point will flash OFF and no 16ma 175 stages will be active This feature can be used as an external shut 20ma adjustable setting 300 down IMPORTANT If the Harmony is not wired to the EMS or if the signal 28 is less than 3 9mA or greater than 20 1mA the display will flash OFF This indicates the input signal from the EMS is not properly wired see pg 5 or the EMS system may not be correctly config ured
19. Normal e Most boilers run more efficiently as their modulation increases Therefore for most systems it is more energy efficient to run one boiler in high than several boilers at lower modulation If your system is of this type select Normal e There are some systems were it may be more energy efficient to run several units at lower modulation than one at high If that is the case select Parallel OPERATING MODE gt NORMAL PROCESS OPERATING MODE NORMAL gt PROCESS OPERATING MODE NORMAL gt PROCESS wuss Press to apes select PRESS TO SELECT Normal wus Or turn I EN amp to scroll PRESS TO SELECT do wn wust Press to kia amp select PRESS TO SELECT Process SELECTING THE OPERATING MODE Default Normal e Most heating applications do not experience rapid changes in system temperature For these systems it is best to adjust the modulation based on the rate of system rise or fall This PID type of algorithm will help to prevent short cycling of the stages reduce thermal stress on the system and maintain an accurate system temperature If your equipment is of this type select Normal e Systems that run for process may experience large changes in load almost instantaneously In Process mode the Harmony will react immediately to load changes Large load changes may cause stages to be short cycled as the Harmony can enable and disable stages within seconds After makin
20. O SELECT setting ww Turn to adjust PRESS TO SELECT value wus Press to rs uN amp select mesos NeW wust Press to pee Se show mesos MOTE susr Press to Py Sy show PRESS TO SELECT se tting wu Turn to Se adjust PRESS TO SELECT value wuss Press to kpi select estosse MEW SANDS TIME Default 10 min 10 Default 10 min The Standby Time only applies to Stages in Standby Mode A Standby Stage can only be activated after all the Stages in Auto Mode have run at 100 modulation for the full Standby Time Standby Stages are used for backup up or extreme load conditions only A Standby Stage can never be a Lead Stage The full Standby Time must always elapse regardless of what happens to system temperature Therefore shorter Standby Times will result in smoother set point operation in extreme conditions Longer Standby Times will result in more loss of load but may prevent a Standby Stage from firing if the other stages can eventu ally meet the load or if the load decreases FOTEN RUN ON Default 0 min SF TEATE The SYS output relay will energize whenever there is a call for output and the Shutdown feature is not active The SYS will remain energized while any Stage is active When the last Stage relay turns off the SYS output will remain energized for the period of time set by the System Run On If the System Run On is set to 0 the SYS output will turn off immediately when the last Stage
21. RE Select a location near the equipment to be controlled The surface should be flat and be sufficiently wide and strong to hold the Harmony Keep the Harmony panel away from extreme heat cold or humidity Ambient operating temperature is from 20 to 120 F Remove the panel from the metal enclosure by removing the top center screw and loosening the two bottom screws Lift the panel out Screw the enclosure to the surface through the mounting holes in the back of the enclosure Return the panel to the enclosure replace the top screw and tighten the bottom two screws WIRING THE POWER Bring the 120VAC 60Hz power wires through a bottom Knockout KO of the enclosure The left front KO is preferred Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage wiring Connect the hot line to terminal marked LINE Connect the neutral line to the terminal marked NEUT The green ground screw MUST be connected to earth ground INPUT WIRING CONNECTING THE SYSTEM SENSOR The Harmony is designed to be connected to a temperature sensor for immersion in a 3 8ID well Contact the factory for additional temperature sensor options Locate the sensor in a common header where it will register the output of all the stages in the flow and after all stages have fed the header If the sensor can not read the output of all the stages it will not be able to control the system properly Temperature sensor wire
22. To change a selection rotate the ADJUST SELECT knob Rotating the knob will cause a pointer to appear Both the old and new value will be displayed e The BACK button will return you to the previous screen without saving any changes made e When the new value the one being pointed to is correct press the ADJUST SELECT knob This will save the selection to memory and return you to the previous menu Self Test Test Passed Initializing Lochinvar Harmony v X XX Initialization Please wait INITIALIZING PERMANENT STORAGE AREA Please wait SYSTEM STARTUP SELECT to continue gt oF C SENSOR TYPE SENSOR TYPE SENSOR TYPE oF c SENSOR TYPE Reset F Reset C mws Press to yes select PRESS TO SELECT F wus Or turn Sto scroll down PRESS TO SELECT wu Press to Ss select aii HOW All Sensor Type options SYSTEM STARTUP STARTUP SEQUENCE The series of initialization screens appears on the left The Harmony will automatically step through the screens When powered the Harmony performs a self test on its compo nents After the self test diagnostics have been successfully completed the Harmony will initialize the panel On the first powerup the System Startup screen will appear after the initialization is complete If it doesn t the Harmony has already been configured To check the configuration or
23. age Hold setting must be accounted for The boiler limit must be set above the Set Point PLUS the Last Stage Hold PLUS the normal drop experienced in the piping Using the previous example of a Harmony Last Stage Hold with a 20 F Set Point the boilers limits must be set enough over 180 F to prevent the boilers internal limits being reached In this situation the boiler high limit should be set at approximately 195 F to prevent the difference in boiler temperature vs header temperature causing erratic operation LOGIN Enter password M LOGIN Enter password M LOGIN Enter password MM CHANGE PASSWORD No gt Yes NEW PASSWORD Enter password M LOGIN Enter password M After setting all letters NEW PASSWORD RE enter password M After setting all letters success Password changed SET PRESENT TIME 2 00pm SET PRESENT TIME 11 am SET PRESENT TIME 11 00am SET PRESENT TIME 11 45am wwsr Turn to ye i adjust messrosasc otter 1 wwe Press to sma x select messrosasc otter 1 wx Turn to sae i Sy adjust messrosnect etter 2 wuss Press to ry uN select PRESS TO SELECT Yes wos Turn to adjust messtossct otter wows Press to ama x select estos otter ADJUST Press to
24. ate Time gt Lst Stg Hold Password LAST STAGE HOLD Value gt New Value LAST Value STAGE HOLD gt New Value Press to yg eX Sy show PRESS TO SELECT setting ADJUST Turn to adjust PRESS TO SELECT value ADJUST Press to kph select mesos eW ADJUST Press to kpi Sy show PRESS TO SELECT se tting ADJUST Turn to adjust PRESS TO SELECT value ADJUST Press to kpi select mesos eW ADJUST IMPORTANT The temperature limits set on the boilers must be higher than the Harmony Set Point Read the section at right for details that will prevent erratic system operation 20 ROTATE TIME LAST STAGE HOLD Default 24hr The Rotate Time only takes effect if the Auto Rotate type is Time see pg 17 The default value is 24 hours and is appropriate for most systems With 24 hour rotation at 2 am every morning the Lead Stage will change to the next stage in Auto Mode Note If you do not set the system time see pg 21 the Harmony will assume it was installed at 2pm The Rotate Time is adjustable in one hour increments from 1 hour to 168 hours 7 days If the Rotate Time is not 24 the Lead Stage will change to the next stage in Auto Mode every time the Rotate Time has elapsed For example with a 12 hour Rotate Time the Lead Stage will rotate from A to B after the first 12 hours of operation and then from B to C after the next 12 hours and so on
25. ation start point prevent unnecessary Stages from being activated Also as most units run more effi ciently at higher modulation a higher setting can result in fuel savings e Some general guidelines follow Less than 50 not recommended in the Normal mode 50 70 These lower settings might be used in an application which has wide load swings such as an industrial plant or a hospital This allows an additional boiler to be brought on line before the previous boiler has begun to reach its capacity The next boiler will now be available for fast high demands 70 90 This range is recommended for most applications When there are several Stages of relatively equal capacity and all can be used to hold the load this allows some degree of overlap without activating unnecessary Stages 90 100 Recommended when one Stage can almost always handle the load and other Stages are mainly for backup 23 W gt e m W m e N W gt A m W m 4 e N 24 Modulating Mode PARALLEL e The Modulation Point should be set to the value where the unit runs most efficiently e Contact the manufacturer to determine the appropriate setting COPY SETTINGS STAGE A ONLY e Ifall the active Stages will have the same Ignition Start Point and Modulation Point they can be set for Stage A and then copied to the other Stages e Itis still required to select the Mode for all other Stages Th
26. e Mode will not be copied IMPORTANT The Mode MUST beset for each stage The Copy Settings command will not set the Mode for Stages B C and D RESET RATIOS 1 2 1 4 1 3 220 Water Temperature in F 130 bE A DAK 120 H 110 100 A E Besa en oe j 10 0 70 60 50 40 30 2 i 131 25 1 251 15 1 2 4 10 2 Outdoor Temperature in F Temp lt A gt B C D OFF OFF OFF OFF SETTIN mm jis 2 gt wuss Press to gt Set Point ace yy show Lead Stage rsrsr Settings RESET RATIO 1 00 OD 1 25 Sys a sed J gt 1 00 0D 1 00 Sys SGIGCI 1 25 0D 1 00 Sys Set Point RESET RATIO 1 00 OD 1 50 Sys Turn to gt 1 r 00 OD 1 25 3 Sys PRESS TO SELECT scroll 1 00 OD 1 00 Sys RESET RATIO Breads 1 00 0D 1 50 sys 2 Press 0 gt 1 00 0D 1 25 Sys select 1 00 0D 1 00 sys new o S130 138 1 1 w 2 2120 He 8 110 4 1 100 70 60 50 40 Outdoor Temperature With a 0 Offset the ratio curves begin at 100 Water Temperature RESET RATIO O FFSET RESET SETTINGS The Reset Ratio controls how much heat will be added based on outdoor temperature The Reset Ratios are shown as Outdoor Temperature Water Temperature A 1 1 Reset Ratio signifies for each degree it gets colder outside the Calculated water temperature will raise 1 degree The other Reset Ratios are adjustable from
27. e The Harmony will disable all stages when the outdoor temperature is above the adjustable Outdoor Cutoff temperature e This feature will automatically be activated when an outdoor sensor is connected e To adjust the Outdoor Cutoff temperature see pg 26 Installing the sensor e For outdoor sensor use the outdoor sensor e Locate the sensor in the shade on the north side of the building e Be sure the location is out of direct sunlight and away from doors windows exhaust fans vents or other possible heat sources e The sensor should be mounted at least 4 inches away from the building wall and approximately 10 feet above ground level e The sensor wires can be extended up to 500 using shielded 2 conductor cable Belden 8760 or equivalent e Do notrun sensor wires in conduit with line voltage wiring e Temperature sensors have no polarity Connect either wire from the outdoor sensor to one of the Harmony terminals marked OUTDOOR Terminals A771 amp A 2 e Connect the other sensor wire to the other OUTDOOR terminal e Connect the shield to the circled terminal OUTDOOR Terminal A 2 with one of the sensor wires OUTPUT WIRING j gt m m gt j O ONIYIM LAdNI NOILVIIVLSNI O C j U c 2 G kekkkkekekl J bH jhe he SYS LINE NEUTRAL N O contacts to activate a pump valve or other system component WIRING THE SYSTEM OUTPUT System Output Operati
28. ease the Set Point water temperature to 160 F Zito 1 3 1 1 L 150 133 1 1 w w a a 100 140 o o 2 90 2 130 iw 4 1 4 1 80 120 70 60 50 40 70 60 50 40 Outdoor Temperature Outdoor Temperature With a 20 Offset the ratio curves With a 20 Offset the ratio curves begin at 80 Water Temperature begin at 120 Water Temperature 25 J m U m j U m G J m W m V m j Z G RESET RATIO 1 00 OD 1 50 Sys gt 1 00 OD 1 25 Sys 1 00 OD 1 00 Sys OFFSET Value OFFSET Value gt New Value OFFSET Value gt New Value OUTDOOR CUTOFF Value OUTDOOR CUTOFF Value gt New Value OUTDOOR CUTOFF Value gt New Value MINIMUM WATER TEMP Value MINIMUM WATER TEMP Value gt New Value 26 ww After S selecting Ratio PRESS TO SELECT ww Turn to ys adjust mesos Offset wust Press to kph select mesos MQW w After EJ selecting PRESS TO SELECT Offset ww Turn to S adjust PRESS TO SELECT Cuto ff wus Press to select PRESS TO SELECT new pus After kia i selecting PRESS TO SELECT Cuto ff ww Turn to adjust PRESS TO see iNnimum wuss Press to rs uN amp select mesos eW OUTDOOR CUTOFF In a new installation start with an Offset value of 0 Adjust
29. eeeeeeeteees 0 to 30 minutes Standby Time 0 cccccccceeeeeeeeeeeeeeeeeeeeeneeeete 0 to 60 minutes Setback ainos isd ie eee 0 to 75 F 0 to 42 C Last Stage Hold ee 0 to 30 F 0 to 30 C Shutdown Input 0 ccc ee eeeeeeeeeneeeeeteeeeeeeees Dry Contact Only System Prove Input cceeceessceeeeeeeeeeeeaeees Dry Contact Only Boiler Active Inputs 000 cc cceeeeeeeeeeeeeeeeee Dry Contact Only 4 20mA External Input Only Available on Temperature Units Harmony can source or sink current
30. er of how they were added For instance if the stages were added in the sequence A B and C then they will be turned off in the sequence C B and finally A 17 lt m s m G a W lt m s m Z G m SYSTEM SETTINGS 1 Auto Rotate gt Purge Delay Lag Delay PURGE DELAY Value gt New Value PURGE DELAY Value gt New Value SYSTEM SETTINGS 1 Purge Delay gt Lag Delay Standby Time LAG DELAY Value gt New Value LAG DELAY Value gt New Value 18 wuss Press to rs uN Se show PRESS TO SELECT setting ww Turn to adjust PRESS TO SELECT value wuss Press to select PRESS TO SELECT new wuss Press to show PRESS TO SELECT se tting ww Turn to adjust PRESS TO SELECT value wuss Press to select PRESS TO SELECT new Lst on e On power up or any time the Harmony loses power the Lead Stage will be the lowest stage in Auto Mode that is A first then B C or D e The Lead Stage will always be the first stage brought on and modulated when there is a call for output As more output is needed additional stages are added e When less output is needed the Lead Stage will be the first stage turned off The bracket indicating lead stage will then switch to the next available stage in Auto Mode For instance if the stages w
31. ere added in the sequence A B and C then they will be turned off in the sequence A B and finally C The lead stage will now be D when more output is needed PURGE DELAY Default 1 0 min Most fully modulating units must go through a purge cycle before they are brought on line and can begin generating heating e After activating a new Stage the Harmony does not adjust its modulation until the Purge Delay is over This allows the unit to fully come on line and to begin producing output Once the Purge Delay is over the Harmony can begin adjusting its modulation to hold the set point e The Purge Delay helps to prevent short cycling of a newly activated Stage Once a Stage is activated it MUST run through the entire Purge Delay period e The minimum Purge Delay setting MUST be the time required for the unit s purge cycle e The actual Purge Delay should be set to the amount of time between when a Stage is activated and when the Harmony sensor begins to see a change in output This can be several minutes longer than the actual purge time of the unit Bog DELAY Default 0 min Set the Lag Delay to 0 min when two or more Stages will generally be needed to hold the load e The Lag Delay requires the previous stage to remain at 100 modulation for the full period of the Lag Delay before another Stage can be activated For example if the Lag Delay is set to 10 minutes the Lead Stage would need to remain at 100 modulation for a full
32. es after the Harmony has been successfully initialized for your specific type of system Stage Settings determine how the individual Stage outputs are controlled When installing the panel each Stage must be set correctly or the Harmony either will not control the Stage or will control them erratically System Settings determine how the system will operate These are general settings which affect all Stages The default settings will generally work in most applications but adjustments should be made to fine tune the performance of your system M ENU BASICS The menus are in English and will guide you through the settings e To change a selection rotate the black knob marked ADJUST and PRESS TO SELECT ADJUST SELECT Rotating the knob clock wise will move down the list of possible selections Rotating the knob counterclockwise will move up the list e A pointer in front of a menu line indicates that it is the one currently selected e When the pointer is on the same line as the item to be selected press the black ADJUST SELECT knob This will either save the selection or bring up a new screen to make further changes to that menu item e The BACK button will return you to the previous screen without saving any changes made GPANGING SETTINGS Some settings require a number such as time or temperature to be adjusted e These screens will be indicated with the title on top and then the current numerical value for that setting e
33. f all System Settings The Harmony s 80 character alphanumeric digital display names each system parameter in plain English and shows its precise value The easy to follow menu system allows users to quickly make changes to any system setting without having to learn any specialized codes or keyboard commands Password protection is available to prevent unauthorized users from making adjustments to control settings Automatic Rotation among Stages Rotating the first stage to be activated on a call for output promotes even wear on each stage The Harmony has three modes of rotation Manual First ON First OFF or automatically each time period which can be adjusted from every hour to every 7 days Outdoor Reset Control The Harmony has an optional stand alone hydronic outdoor temperature reset function Connects to Energy Management Systems The Harmony can accept a 4 20 mA input signal from an EMS to adjust the temperature set point according to outdoor temperature system requirements or other factors In addition Harmony can be disabled by an Energy Management System EMS or other controller when there is no output requirement Monitors Stage Status The Harmony is designed to accept a lockout signal from each stage If any stage requires a manual reset the Harmony will automatically skip it when adding more capacity If a stage goes into lockout during normal operation the next stage will be activated immediately to maintain the desired output
34. g this selection the main display screen will be displayed 13 V lt W m z W ur gt JJ ar C v INIOd LAS Temperature lt A gt B c D OFF OFF OFF SETTINGS gt Set Point Gain Lead Stage SET POINT Value SET POINT Value gt New Value SET POINT Value gt New Value wust Press to I uN Sy show PRESS TO SELECT Se ttings sus Press to kaha Sy show press ro setect O of Point wuss Turn to pes Sy adjust PRESS TO SELECT value ADJUST EJ PRESS TO SELECT If the optional Outdoor Sensor is installed OUTDOOR CUTOFF Value gt New Value OUTDOOR CUTOFF Value gt New Value 14 was Turn to kpi adjust PRESS TO SELECT value mws Press to pes select mesos EW OPERATING SETTINGS CHANGE SET POINT GAIN LEAD STAGE THE MAIN DISPLAY e The main display screen may have different values in the top two lines depending on the application e The third line shows the four stages The Lead Stage will be in brackets For example the Lead Stage shown at left is lt A gt e The last line shows the status of each stage The stages may be Off or the actual percent modulation will be displayed e To reach the Settings menu press the ADJUST SELECT knob and release it SET POINT SET POINT DISPLAY e The Set Point is the temperature value the Harmony will use to control the system e The Harmon
35. h stage connected to valves or other system Earth Ground components 120VAC Each N O output is Power wired in series with each unit s limit circuit DRY CONTACTS ONLY Only available with the Remote Communications package The modulation outputs can be 0 5V 0 10V 1 5V 2 10V or 4 20ma Different output boards mount on the back of the Harmony and determine the type of output Harmony Overview Sequences up to 4 Fully Modulating Stages The Harmony is the perfect control whenever multiple fully modulating stages are required The Harmony controls the on off and the modulation of each stage to maintain precise set point control PID Type Logic The Harmony s control algorithms allow it to look at the rate of change in the system If the system temperature is changing quickly the Harmony will react quickly to adjust the modulating stages output If the system temperature changes slowly the Harmony will make slow and gradual adjustments Therefore the Harmony adapts to specific system requirements and minimizes fluctuations around the set point Controls 0 5 V 0 10 V 1 5V 2 10V or 4 20 mA modulating motors The Harmony is designed to accurately control the output from 0 to 100 of modulation for each of these different types of motors One Harmony can even control two different types of motors Only One Sensor The Harmony requires only one sensor located in the common output header of all stages Digital Display o
36. h the boiler manufacturer if you are in doubt about the minimum position of the fuel valve for ignition MODULATION START Default 75 When Does the Next Stage Turn On e The Modulation Start determines at what percent modulation of the current Stage the next Stage in the sequence will be activated e For example if the Modulation Start for Stage A is set to 75 then when Stage A reaches 75 modulation Stage B if Stage B is in Auto Mode and is not already on will be brought on in low fire e When modulation is decreasing the lag unit will remain on in low modulation until the previous stage reaches 40 of its Modulation Start point or 2 above the Ignition Point whichever is higher e Using the same example as the load decreased Stage B would modulate down to low Stage A would then modulate down to 30 Only then would Stage B turn off e Ifthe Lag Delay see pg 18 is set to anything other than 0 a Stage must always go up to 100 modulation before the next stage is activated However the Modulation Start should still be set correctly because it will be valid when modulation is decreasing e The Modulation Start point will generally be set differently based on the Modulating Mode selected see pg 12 moguiaung Mode NORMAL Lower settings of the modulation start point allow the next boiler in the sequence to be activated and warmed up generally allowing more even set point control e Higher settings of the modul
37. immediately turn on and be modu lated to 100 STAGE Mode gt Ignition Mod Start SETTINGS STAGE IGNITION POINT Value gt New Value STAGE IGNITION POINT Value gt New Value STAGE Mode Ignition gt Mod Start SETTINGS STAGE MODULATION START Value gt New Value STAGE MODULATION START Value gt New Value wus Press to yas Sy show PRESS TO SELECT setting ww Turn to SS adjust PRESS TO SELECT value wust Press to kph select mesos MQW wuss Press to apes Sy show PRESS TO SELECT setting wus Turn to rs EN Sy adjust PRESS TO SELECT value wus Press to LI EN amp select mesos eW When does the lag stage turn OFF At 40 of the Previous Stage Mod Point Or 2 Above the Ignition Point Whichever is higher Example Stage A Lead Ignition Point 1 Mod Start 75 When does Stage B turn OFF At 40 of Stage A s Mod Point 75 x 40 100 30 Stage B will turn off when A s modulation reaches 30 IGNITION POINT Default 1 When Can a Stage Begin Modulating e The Ignition Point is the percent modulation which must be attained before the unit can be activated e For most boilers the Ignition Point should be set at 1 e Older units or atmospheric units may require the modulating fuel valve to be open from 20 50 before proper ignition can be attained Check wit
38. isplay shows OPN 25 19939 Check the System Startup settings pg 11 to be sure the Harmony is 30 17264 configured correctly to read the temperature input Then check a 35 14985 sensor is connected and the wires are continuous to the Harmony 40 13040 Finally follow the procedure for Incorrect Temperature Display 45 11374 Display shows SHT 50 9944 The Harmony sees a short across the sensor input terminals 55 8714 Remove the wires from either the SYSTEM TEMP or OUT TEMP 60 7653 terminals whichever is reading SHT The display should change to read OPN If it doesn t the Harmony may be damaged ay 22a Display shows an Incorrect Temperature Display 80 4649 Remove the wires from either the SYSTEM TEMP or OUT TEMP 90 3667 terminals whichever is reading incorrectly The display should 100 2914 change to read OPN If it doesn t the Harmony may be damaged 110 2332 Take an ohm reading across the detached sensor wires The ohm 120 1879 reading should correspond to the side chart If it doesn t the sensor 130 1524 may be damaged 140 1243 150 1021 STAGE OUTPUTS Hee 812 When the unit s Mode is set to ON the unit does not come 170 699 on 180 583 To set the Mode to ON see pg 22 Remove any wires attached to the 190 489 Harmony output Check for continuity across the stage s N O 200 412 contacts If there is continuity the Harmony output is working correctly Check the wiring and the unit being energized to determine why
39. it Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage wiring MAING TO 4 20 MA MODULATING MOTORS The Harmony can be equipped to operate up to four 4 20 mA modulating motors To program the control for 4 20 mA output see System Startup settings pg 12 Apply the supplied label marked 4 20 mA below the output termi nals The output boards are connected on the rear of the panel The pair of outputs A and B are controlled by a one output board The pair of outputs C and D are controlled by a second output board The Harmony sources 24VDC excitation voltage for the 4 20mA signal Wire as shown below Common mA Source Stage A C1 C2 Harmony Stage B C4 C5 Sources Current Stage C C7 c8 Stage D C10 C11 WIRING TO VOLTAGE MODULATING MOTORS The Harmony can be equipped to operate up to four 0 5 V 0 10V 1 5V or 2 10V modulating motors Apply the supplied label marked Voltage below the output terminals The output boards are connected on the rear of the panel To select the range 0 5V 0 10V 1 5V or 1 10V see pg 12 The pair of outputs A and B are controlled by a one output board The pair of outputs C and D are controlled by another output board Wire as shown below GND V Stage A C1 C3 Stage B C4 C6 Stage C C7 c9 Stage D C10 C12 NOILVTIVLSNI O an U am zj 2 Z G MAKING SELECTIONS
40. it is not operating Red stage light is lit but the unit is not on The Harmony is calling for this unit to be on Follow the procedure above Red stage light is not lit but the unit is on The Harmony is not calling for this unit to be active Remove any wires attached to the Harmony output Check for continuity across the N O contacts If there is no continuity the Harmony output is working correctly Check the unit for any other operating controls which may be causing it to energize SYSTEM OUTPUT Output is required but the SYSTEM component does not come on Check the display to see if the temperature is above the Set Point or if the Outdoor Cutoff is active Red SYSTEM light is lit but the SYSTEM component is not on The Harmony is calling for the unit Check for continuity across the N O SYS contacts If there is continuity the Harmony is working correctly Check the wiring and the component being energized to determine why it is not operating Red stage light is not lit but the SYSTEM component is on The Harmony is not calling for the component to run Remove any wires attached to the Harmony s SYS terminals Check the N O terminals are open If they are check the unit for any other operating controls which may be causing it to energize 27 J O Cc u m m Ww L O O G APPENDIX Svein STARTUP MENU On the initial start up the Harmony will automatically step through the System Startup After that it mus
41. kd finish PRESS TO SELECT ws Turn to rg N Sy adjust PRESS TO SELECT ho ur must Press to Apes select PRESS TO SELECT h our wows Turn to Se adjust PRESS TO SELECT min utes aus Press to ry ey select PRESS TO SELECT min utes PASSWORD Default Disabled The Password is provided to prevent unauthorized users from making changes to the Harmony settings Setting up the Password feature is not recommended as it slows down access makes servicing more difficult and can disable the system if management or ownership should change The Password feature is not active unless a user enables it If you choose to enable the Password DO NOT forget the Pass word Write it down and store it in a safe location known to at least one other authorized user When the Password is enabled none of the settings can be changed without entering the Password Once the Password is entered you can make multiple changes The Password will expire 15 minutes after the last change has been made Using the Default Password The Harmony has a built in default Password MMOD Enabling the default Password will prevent most unauthorized users from adjusting the settings but will not prevent Lochinvar service personnel or anyone else with access to this manual from adjusting the panel To enable the default Password enter the System Settings 2 menu select Password and follow the prompts to enable the Password At the Login screen you
42. l Ignition Point 23 L Lag Delay 18 23 Last Stage Hold 20 Lead 14 15 16 17 18 19 20 22 Loading Mode See Modulation Loading Mode Lockout Inputs 6 30 Index Menu Basics 10 Changing Settings 10 Stage 22 Moving around 29 System Settings 17 System Startup 28 Types 10 Minimum Water Temperature 26 Modulation Loading Mode 12 23 Modulation Start 23 Motor Selecting Type 12 N Normal Loading 12 23 O Offset 25 Operating Mode 13 Normal Gain 15 Process Throttle 15 OPN 27 Outdoor Cutoff 7 14 26 Outdoor Reset See Reset Outdoor Sensor 7 P Parallel Loading 12 24 Password 21 Process Operation 13 15 Purge Delay 18 R Radiant applications 25 26 Relays 8 Reset 7 8 11 14 19 Minimum Water Setting 26 Offset Setting 25 Outdoor Cutoff 26 Ratio 25 Rotation Set Auto Time 20 Set System Time 21 Types 17 S Sensor Outdoor 7 Selecting Type 11 System 4 Temperature See Temperature sensor Set Point 14 Setback 7 19 SHT 27 Shutdown 5 19 Stage Ignition Point 23 Mode 22 Modulation Start 23 Testing 27 Standby Time 19 Startup Getting the Menu 28 Sequence 11 System Output 8 Testing 27 System Prove 6 8 22 System Run on 19 T Temperature Display Mode 11 Testing sensor 27 Time Setting 21 Troubleshooting 27 V Voltage Motors Selecting the Range 12 Wiring 9 W Wiring 4 20mA Motors 9 External Setpoint 5 Inputs 4 Lockout Inputs 6 Outdoor Sensor 7 Outputs 8 P
43. new Lead Stage Temp lt A gt B Cc D OFF OFF OFF OFF SETTINGS gt Set Point Gain Lead Stage SETTINGS Gain Lead Stage gt lt System Settings gt SYSTEM SETTINGS 1 gt Auto Rotate Purge Delay Lag Delay SYSTEM SETTINGS 1 gt Auto Rotate Purge Delay Lag Delay LEAD AUTO ROTATE gt Manual Time Lst on LEAD STAGE Manual gt Time Lst on wuss Press to ayes Sy show PRESS TO SELECT Settings ww Turn to yas scroll PRESS TO SELECT do wn apuust Press ro tN for menu PRESS TO SELECT wuss Press to apes Sy show PRESS TO SELECT setting wou Turn to scroll PRESS TO SELECT do wn rust Press to kpi select piii pay SYSTEM SETTINGS TIE SYSTEM SETTINGS MENU AUTO ROTATE These are general settings which affect all Stages and overall operation The Harmony will generally operate satisfactorily with the default settings However it is recommended that each of these settings be checked on Startup to tune the Harmony to the particular system From the main display press the ADJUST SELECT knob and release it to reach the Settings display Scroll down to lt System Settings gt and select it The System Settings 1 menu will be shown SYSTEM SETTINGS 1 Default Time The Lead Stage will always be the first stage activated when there is a call for output Automatically rotating the Lead among the active s
44. on in Set Point Mode The SYS output relay will energize whenever there is a call for output and the Shutdown feature is not active Until the SYSTEM PROVE input is shorted no Stages will be activated If a Prove is not required the factory installed jumper should remain The SYS will remain energized while any Stage is active When the last Stage relay turns off the SYS output can remain energized for the period of time set by the System Run On see pg 19 A typical use of the SYS output is to activate a system pump starter The pump can run whenever there is a call for heat When heat is no longer required the pump will stay active for a few more minutes to remove the residual heat from the boilers System Output Operation in Reset Mode The SYS output relay will energize whenever the outdoor tempera ture is below the Outdoor Cutoff The SYS will remain constantly energized while the outdoor tempera ture is below the Outdoor Cutoff When the outdoor temperature rises 2 F above the Outdoor Cutoff the SYS output will remain energized for the period of time set by the System Run On see pg 19 Wiring the SYS Output The SYS output has one Normally Open N O relay contact The N O contacts are dry contacts only They do not source any voltage Class 1 voltages must enter the enclosure through a different opening from any Class 2 voltage wiring Each N O contact is capable of switching 6A resistive at 120VAC Total outp
45. ower 4 Setback 7 Shutdown 5 Stage Outputs 8 System Output 8 System Prove 6 System Sensor 4 Voltage Motors 9 31 XJCNI 32 HARMONY SPECIFICATIONS Input Voltage 0 eect eee e reese eeeeaaaeeeeeeeeeeeaaeaenae ees 120VAC Power COMSUMPTiON cccccccccceeeceeceeeeeeeeeeeeeeeeeeeeeeeeeeteas 30VA Lead Stage Rotation Manual First On First Off Automatically a Every hour to every 7 days Quiput Types h2 nena ei 4 20mA or Voltage 0 5V 0 10V 1 5V or 2 10V Stage Modes cceceeee Off Auto On Standby Manual Output Contacts 0 c ccc ccc ee eee ceeeeeeeeeeaaeeeeeeeeaeaaeneeees 5 SPST Output Rating eeren 6A resistive 1 3HP Operating Ambient Temperature 0 008 20 to 120 F Enclosure i24sac4 iat Medd Gaeta NEMA 1 Dimensions 12 3 4 x 12 3 4 x 4 5 8 Temperature Accuracy eeeeeeerrreeesreererrnnnnn 1 F 1 Temperature Display cccceeeeeeeeees Field select F or C Temperature Range 30 to 250 F 35 to 120 C Ignition Start Point 1 to 50 Modulation Start Point 00 cccccceceeeeeeeeeeeeeeeeeeeneeees 50 to 100 Operating Mode cccccceceeeeeeeeeesteeeeeeee Normal or Process Purge Delay cccccecececeeeeeeeeeeeeeteeneeeeeeeees 1 0 to 10 0 minutes Lag Stage Delay cccccccecceeseeeeeeeeeeeteetaeeees 0 to 60 minutes System Run On Delay 0 ccccceeeeeee
46. r no heat is required for a prolonged period of time regardless of outdoor temperature Setting the Outdoor Cutoff to On means the heating system will run regardless of outdoor temperature In mild weather the lowest calculated Set Point will be determined by the Minimum Water Temperature next MINIMUM WATER TEMPERATURE Default 70 F Most boilers require a minimum temperature for the water returning from the system to the boiler The Harmony controls the system temperature which is measured at the sensor location Depending on the piping configuration and sensor location the return temperature may vary significantly from that measured by the Harmony Check with the manufacturer for the appropriate Minimum Water Temperature setting at the Harmony s sensor to meet the boiler s requirements The Harmony will use the Minimum Water Temperature as the Set Point whenever it is higher than the calculated value determined by the outdoor temperature Reset Ratio and Offset The Minimum Water Temperature can be set from 70 to 180 F IMPORTANT If the Minimum Water Temperature is not set correctly boiler life may be significantly shortened TROUBLESHOOTING i i TEMPERATURE Value No Display or Garbled Display in degrees F in Ohms Check the 120VAC power input to the Harmony Turn power to the 0 42683 Harmony off and back on 10 31215 TEMPERATURE INPUTS e a D
47. s can be extended up to 500 by splicing with 18 gauge shielded wire Belden 8760 or equivalent Do not run sensor wire in conduit with line voltage Temperature sensors have no polarity Connect the wires from the sensor to the Harmony terminals marked TEMP A1 A2 Connect the shield to the circled terminal TEMP A2 with one of the sensor wires Note Cut the shield wire at the sensor end Harmony Sources Current 24VDC Excitation Voltage EMS INPUT alae p i 5 bate SHIELD i p EMS Sourcing Current EMS INPUT SSS SE EMS ate a Input INPUTS Dry Contact Shutdown Signal NETWORK SYSTEM PROVE 0 CONNECTING AN EXTERNAL SET POINT W WwW 4 20mA EMS CONTROL The Harmony can take a 4 20mA signal from an Energy Manage ment System EMS or other signal source to change the set point remotely see pg 28 for additional details The signal must be a two wire 4 20mA A system sensor must be installed as described in the previous section The External Set Point must be set up correctly see pg 12 These settings will allow the Harmony to read and monitor the system temperature and also monitor the 4 20mA input to remotely adjust the Harmony set point to the desired value The Harmony can source the current for the 4 20mA input It provides an excitation voltage of 24VDC If using the Harmony to source the power attach the side of the 4 20mA input to the
48. t Mode Ignition Mod Start IMPORTANT When initializing the panel the MODE for all four Stages MUST BE SET STAGE SETTINGS P gt Mode wos Press to Ignition 2 show Mod Start mesos Mode STAGE MODE P Manual pans ress to Pore select On PRESS TO SELECT Off STAGE MODE r gt Auto ee or turn Standby to scroll Manual PRESS TO SELECT d own STAGE MODE P gt Auto sos Press to Standby select Manual PRESS TO SELECT new STAGE MODE Auto Standby All Mode Manual Options Off On 22 T MODE STAGE SETTINGS INDIVIDUAL STAGE ADJUSTMENTS HE STAGE MENU In most installations all Stage adjustments are the same but each of the four output Stages can be configured differently if desired If the stages are not set up properly the Harmony operation may appear to be erratic From the main display press the STAGE button and release it The Stage A Settings menu will be shown Make all the appropriate settings for Stage A as described below and on the following two pages After completing all the settings for Stage A you have the option of copying these settings to all other Stages Everything but the Mode Auto Standby Manual Off On will be copied Then press the STAGE button to bring up the Stage B Settings menu and make all the settings Continue until all four stages have been set To move around the Stage Menus more easily see pg
49. t Point when less load is required To adjust the amount of Setback see pg 19 e When selecting Setback there is no requirement for any wiring across the EMS INPUT terminals DO NOT select EMS Control unless your system meets the requirements below External Set Point 4 20mA EMS Control e For this option an EMS system must provide a 4 20mA signal to automatically change the Set Point based on pre programmed system parameters e An active signal must be wired into the EMS Harmony terminals If the Harmony does not receive a signal between 3 9mA and 20 1mA it will NOT activate any stages e If your system meets the above two criteria see pg 28 to complete the EMS control setup SELECTING THE OUTPUT TYPE e The Harmony has two output cards one for stages A amp B and one for stages C amp D e Both output cards must be programmed for the appropriate mode of operation e Outputs can be configured for 4 20mA operation current or the voltage range can be selected 0 SV 0 10V 1 SV 2 10V e Check the modulating motor to determine its control requirements e Select the appropriate Output Type for stages A amp B The Harmony will then automatically bring up the screen for stages C amp D e Select the appropriate Output Type for stages C amp D e If different types of burners are being used stages C amp D can be selected to have a different Output Type than stages A amp B SELECTING THE MODULATING MODE Default
50. t be reached through the menu system DO NOT make changes to the System Startup unless you have carefully checked the installation An incorrect setting in the System Startup menus may cause the Harmony to be unable to read the sensor unable to output or generally just not operate the system DO NOT make changes to the System Startup unless you have copied all other settings and are prepared to restore them Some changes in the System Startup may cause Operating Stage and System settings to revert to their default values From the main display press the ADJUST SELECT knob and release it to reach the Settings display Scroll down to lt System Startup gt and select it The screen will show System Startup and Select to continue Read and follow the prompts until Sensor Type is displayed Follow the directions starting on pg 11 to set each item correctly WARNING DO NOT make changes to the System Startup Menu without first carefully read ing the preceding section Making changes to the System Startup may cause the Harmony to no longer control the system or to control the system erratically EXTERNAL SET POINT 4 20MA EMS CONTROL RANGE Set Up The 4 20mA option is not available when using the Reset Function It is only available for systems where the Sensor Type is Temperature see pg 11 The 4 20mA range adjustment can only be reached through the System Startup menu system see above In the EMS INPUT menu press the ADJUST SEL
51. tages promotes more even wear on the Stages and can help prolong the life of each unit The Lead Stage is shown on the main display in brackets The Harmony has three selections for rotating the Lead Stage Each is described below Manual If Manual is selected the Lead Stage will not automatically rotate In Manual whichever stage is presently the Lead Stage will remain the Lead Stage until there is a power failure Then the Harmony will revert back to the lowest Stage in Auto Mode that is A first then B C or D Time On power up or any time the Harmony loses power the Lead Stage will be the lowest stage in Auto Mode that is A first then B C or D If the default 24 hour rotation is used at 2 am every morning the Lead Stage will change to the next stage in Auto Mode Note If you do not set the system time see pg 21 the Harmony will assume it was installed at 2 pm If the Rotate Time is changed see pg 20 the Lead Stage will change to the next stage in Auto Mode every time the Rotate Time has elapsed For example with a 12 hour Rotate Time the Lead Stage will rotate from A to B after the first 12 hours of operation and then from B to C after the next 12 hours and so on The Lead Stage will always be the first stage brought on and modulated when there is a call for output As more output is needed additional Stages are added When less output is needed the additional Stages are turned off in the reverse ord
52. to make changes follow the procedure on pg 28 to bring up the System Startup screens The System Startup menu determines the sensors the type of output the operating mode and the modulating mode Press the ADJUST SELECT knob once to begin setting up the panel SELECTING THE SENSOR TYPE Check the installation and which sensor was installed Temperature Set Point Mode Default F The same temperature sensor can display either in F or C If F is selected all temperatures and settings will be displayed in degrees Fahrenheit If C is selected all temperatures and settings will be displayed in degrees Celsius Reset Mode Reset F or Reset C Reset mode is only available if an outdoor sensor is connected to terminals A77 and A12 DO NOT select Reset F or Reset C without an outdoor sensor The same outdoor sensor can display either in F or C If Reset F is selected all temperatures and settings will be dis played in degrees Fahrenheit If Reset C is selected all temperatures and settings will be dis played in degrees Celsius For information on how to configure the Reset see pg 25 11 ea lt Ca m s 2 i gt JJ ar v V lt W m s W j gt JJ ar C U EMS INPUT gt Setback EMS Control EMS INPUT gt Setback EMS Control EMS INPUT Setback gt EMS Control wust Press to rs ey
53. turns off A common use of the SYS output is to control a system pump in a heating system After the last Stage is turned off it is often desirable to run the system pump for an additional period of time to transfer the residual heat from the boilers to the heating system SYSTEM SETTINGS 2 Setback is not available in the Reset or 4 20mA EMS Control mode The Setback feature can be used to provide the Harmony with a lower temperature Set Point when less load is required The lower Set Point will appear on the main display indicating this condition A typical use for Setback is to providea lower system temperature to a factory during the night or on the weekends when product is not being manufactured but heat is still required The Setback will not be activated unless a signal is wired into the Harmony EMS terminals See pg 7 for wiring The amount of Setback selected is subtracted from the Set Point when a Setback signal is received For aexample if the Set Point is 180 F and the Setback is 20 F then when the EMS SIGNAL and SHIELD terminals are closed the Harmony will hold a Set Point of 160 F 19 eg lt W j m S Ww m mr 2 Z G W N ea lt WN j m s W m 3 Z G V N SYSTEM SETTINGS 2 Setback gt Rotate Time Last Stg Hold Value AUTO ROTATE PERIOD gt New Value Value AUTO ROTATE PERIOD gt New Value SYSTEM SETTINGS 2 Rot
54. ut SYS and the OPERATING LIMIT OUTPUTS must not exceed 15A WIRING THE STAGE OUTPUTS Installing the Output Relays Each output stage A through D which is to be used must have a relay installed in the socket The SYS relay is included with the Harmony To install a relay orient the pins and then press it gently into the appropriate socket Any stage output which does not have a relay must have its Mode set to Off see Stage Settings pg 22 Beeeeeeece Gi hH LH LH LH 10 11 12 SYS OPERATING LIMIT OUTPUTS ES A Limit Circuit Typical for each stage 4 20 mA MODULATION OUTPUTS Common Common mA mA Common Common ne in C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 N SIMIMIN INMAIM i B c D 4 20mA Motor Voltage MODULATION OUTPUTS V V V V GND he ne GND Ci C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 NE 0 5V 0 5V 0 5V 0 5V or or or or 0 10V 0 10V 0 10V 0 10V Motor Motor Motor Motor A B C D Wiring the Stage Outputs Each Stage output A through D has one Normally Open N O relay contact The N O contacts are dry contacts only They do not source any voltage Each N O contact is capable of switching 6A resistive at 120VAC Total output of all stages including the SYS must not exceed 15A Wire the N O relay contacts in series with the boiler s limit circu
55. will have to enter the Password Turn the ADJUST SELECT knob until the desired letter is shown Then select the letter to move on Enter MMOD into the Login screen as shown top left When completed select No to the prompt Change Password Changing the Password Follow the instructions to use the default Password but select Yes to the prompt Change Password Enter your new Password in the New Password screen Turn the ADJUST SELECT knob until the desired letter is shown Then select the letter to move on Reenter the same new password when prompted If the password is correctly entered the Success screen will appear If you made a mistake the procedure will need to be repeated SET TIME Setting the system time will set the default 24 hour rotation to occur at 2 am every morning To set the Time enter the System Settings 2 menu select Set Time Turn the ADJUST SELECT knob until the correct hour is shown Be sure that am or pm is set correctly Then select the hour Turn the ADJUST SELECT knob until the correct number of minutes is shown Then select the minutes 21 W lt W m s W m j Z Q W N Sa gt A m W m e a Temp lt A gt B c D OFF OFF OFF OFF Press STAGE STAGE A SETTINGS gt Mode Ignition Mod Start After completing all settings for Stage A Select Stages B C and D Press STAGE STAGE B SETTINGS g
56. y will either increase the amount of modulation decrease the amount of modulation or maintain the same amount of modulation to maintain the system temperature around the Set Point e The Set Point is the target temperature the Harmony will maintain The system can be expected to fluctuate above and below the Set Point The size of the fluctuation depends on the number of stages the system load and the Operating Mode selected see pg 13 Outdoor Cutoff Temperature e If the outdoor sensor is installed see pg 7 the Outdoor Cutoff screen will automatically appear after the Set Point has been selected e When the outdoor temperature falls to the adjustable Outdoor Cutoff temperature the Harmony will control and modulate stages to hold the temperature Set Point e When the outdoor temperature rises to the Outdoor Cutoff tempera ture plus a 2 F differential the Harmony will disable the system RESET F AND RESET C e The Set Point is based on the Reset Ratio Offset and Outdoor Cutoff To make these settings see pg 25 EXTERNAL SET POINT 4 20mA EMS CONTROL e The Set Point value can only be changed by adjusting the 4 20mA input wired into the Harmony see pg 28 e Rotating the ADJUST SELECT button will have no impact on the Set Point value Set Panne com Press to GAIN THROTTLE apes h gt Gain show Lead Stage sose Setting OPERATING MODE NORMAL Default 0 The Gain adjusts the PID logic in the Harmony
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