Lochinvar operation manual Harmony Specifications, Lead Stage Rotation, 4-20mAExternal Input

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HARMONY SPECIFICATIONS

Input Voltage	120VAC
Power Consumption	30VA
Lead Stage Rotation
Manual
First On/First Off
Automatically	Every hour to every 7 days
Output Types	4-20mA, or
Voltage	0-5V, 0-10V, 1-5V, or 2-10V
Stage Modes	Off, Auto, On, Standby, Manual
Output Contacts	5 SPST
Output Rating	6A resistive, 1/3HP
Operating Ambient Temperature	20 to 120°F
Enclosure	NEMA -1
Dimensions	12-3/4” x 12-3/4” x 4-5/8"
Temperature Accuracy	± 1°F (1°C)
Temperature Display	Field select °F or °C
Temperature Range	-30 to 250°F (-35 to 120°C)
Ignition Start Point	1 to 50%
Modulation Start Point	50 to 100%
Operating Mode	Normal or Process
Purge Delay	1.0 to 10.0 minutes
Lag Stage Delay	0 to 60 minutes
System Run On Delay	0 to 30 minutes
Standby Time	0 to 60 minutes
Setback	0 to 75°F (0 to 42°C)
Last Stage Hold	0 to 30°F (0 to 30°C)
Shutdown Input	Dry Contact Only
System Prove Input	Dry Contact Only
Boiler Active Inputs	Dry Contact Only
4-20mA External Input

Only Available on Temperature Units

Harmony can source or sink current

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Contents HARMONY TABLE OF CONTENTSLochinvar Harmony Function Chart HARMONYFULL MODULATION SEQUENCING CONTROLHarmony Overview INSTALLATION INPUT WIRINGINPUT WIRING WIRING THE POWERINSTALLATION INPUT WIRING WIRING THE SHUTDOWNWIRING THE SYSTEM PROVE EMS Sourcing CurrentWIRING THE BOILER ACTIVE INPUTS SignalDry Contact System ProveOUTPUT WIRING WIRING A SETBACKCONNECTING AN OUTDOOR SENSOR EMS INPUTWIRING THE SYSTEM OUTPUT WIRING THE STAGE OUTPUTSSystem Output Operation in Reset Mode Wiring the SYS OutputOUTPUT WIRING WIRING TO 4-20MA MODULATING MOTORSWIRING TO VOLTAGE MODULATING MOTORS INSTALLATIONUSING THE MENUS USING MENUSCHANGING SETTINGS MAKING SELECTIONSSYSTEM STARTUP STARTUP SEQUENCESELECTING THE SENSOR TYPE Default - FEMS INPUT Default - Setback SELECTING THE MODULATING MODE Default - NormalSELECTING THE OUTPUT TYPE Not available for Reset Sensor TypesSELECTING THE OPERATING MODE Default - Normal SYSTEM STARTUPPress to select Normal or turn to scroll down Press to select ProcessOPERATING SETTINGS RESET F AND RESET CSET POINT THE MAIN DISPLAYDefault = THROTTLEGAIN/THROTTLE PROCESS GAIN/THROTTLING RANGE TABLEUsed to manually change the lead stage LEAD STAGELEAD STAGE SYSTEM SETTINGS SETTINGSSYSTEM SETTINGS THE SYSTEM SETTINGS MENUPURGE DELAY Default - 1.0 min Default - 0 minLAG DELAY SYSTEM SETTINGSSTANDBY TIME Default - 10 min SYSTEM RUN-ONDefault - 0 minDefault SETBACKDefault 24hr DefaultROTATE TIME LAST STAGE HOLDPASSWORD Default DisabledSET TIME SYSTEM SETTINGSSTAGE SETTINGS INDIVIDUAL STAGE ADJUSTMENTS THE STAGE MENUDefault - OFF MODEIGNITION POINT Default - 1% MODULATION START Default - 75%STAGE SETTINGS Press to show setting Turn to adjust valueModulating Mode - PARALLEL COPY SETTINGS - STAGE A ONLYSTAGE SETTINGS RESET SETTINGS RESET RATIODefault OFFSET DefaultRESET Default 64FMINIMUM WATER TEMPERATURE Default 70F OUTDOOR CUTOFFTROUBLESHOOTING TROUBLESHOOTINGTEMPERATURE INPUTS STAGE OUTPUTSAPPENDIX SYSTEM STARTUP MENUEXTERNAL SET POINT 4-20MA EMS-CONTROLRANGE APPENDIXAPPENDIX MOVING AROUND THE STAGES MENUSMANUAL CONVENTIONS Index SymbolsINDEX INDEX 4-20mAExternal Input HARMONY SPECIFICATIONSLead Stage Rotation