Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar 1.3 Control inputs, Secondary Smart Control Module Primary, Service Manual

Models: 1.3 1

1 56

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Page 7

Control inputs

Service Manual

1 Service (continued)

Control inputs

LOW VOLTAGE

CONNECTION

BOARD

SEQUENCER / BUILDING

MANAGMENT SYSTEM

OUTDOOR SENSOR

HW TANK SENSOR

SYSTEM SENSOR

FLOW SWITCH

HW THERMOSTAT

ROOM THERMOSTAT /

ZONE CONTROL

SECONDARY

SMART CONTROL

MODULE

PRIMARY

SMART CONTROL

MODULE

			O-TEMP
			HEAT EXCHANGER SWITCH
			PRIMARY/SECONDARY INLET
			TEMPERATURE SENSOR
		O-TEMP
	HEAT EXCHANGER SWITCH		PRIMARY/SECONDARY OUTLET
			PRIMARY/SECONDARY OUTLET
			TEMPERATURE SENSOR
	BLOCKED DRAIN SWITCH		PRIMARY/SECONDARY
			PRIMARY/SECONDARY
				FLUE GAS SENSOR
	LOW WATER CUTOFF
		TOUCH PANEL	PRIMARY/SECONDARY
		TOUCH PANEL	GAS PRESSURE SWITCH
	TOUCH DISPLAY	INTERFACE	GAS PRESSURE SWITCH
	TOUCH DISPLAY	INTERFACE
			PRIMARY/SECONDARY
				HIGH LIMIT SENSOR
			PRIMARY/SECONDARY
		MODBUS COMMUNICATION		FLAME SENSOR
		MODBUS COMMUNICATION
	PC INTERFACE		BOARD
	PC INTERFACE

IMG00004

7

Image 7

Lochinvar 1.3 service manual Control inputs, Secondary Smart Control Module Primary, Service Manual

Contents

Models: 1.0, 1.3, and Service ManualNOTICE Hazard definitionsPlease read before proceeding DANGERBoiler operation – When servicing boiler –Handling ceramic fiber materials Boiler water –Troubleshooting What is in this manual?Service MaintenanceNear boiler piping 1 ServiceService Manual 1 Service The SYNC displayService Manual SMART CONTROL MODULE Control inputsService Manual SECONDARY SMART CONTROL MODULE PRIMARYSECONDARY SMART TOUCH CONTROL MODULE PRIMARY Control outputs1 Service Service ManualInstaller General OperationService Manual Access modes1 Service Sequence of operationService Manual INSTALLER ACCESS Parameter tableService Manual USER ACCESSINSTALLER ACCESS 1 ServiceOUTDOOR RESET USER ACCESSService Manual Viewable and changeable control parametersStatus Screen Service Manual 1 Service2 heat exchangers Details Screen Service ManualService Manual 1 ServiceDisplayed items are as follows Main Screen Service ManualSetup Screen 1 ServiceService/Setup Parameters Screen Service ManualService Manual 1 Service•Maximum Service Time - Service Mode allows the installer to control the fan speed of the individual control modules for the purposes of combustion analysis Set Point Parameters Screen Service ManualService Manual 1 ServiceOutdoor Reset Parameters Screen •Boost Increment - If a system heat call last longer than the programmed boost time setting and there have been no Hot Water Generation calls, the control will increase the water temperature set point by the amount in this parameter. If the system heat call continues through another time period, the set point will be increased again. This will continue until either the system heat call ends, a maximum of 20 increases has occurred, or the maximum set point has been reached. Once the system heat call has been satisfied the set point will revert back to its calculated setting. This parameter can be changed by the user or the installer. The temperature range of this parameter is 0 to 45F. The default value is 0F. This feature will be active if this parameter is set to anything other than 0F Service ManualService Manual 1 ServiceNight Setback Parameters Screen Cascade Parameters Screen Service ManualCascade Operation Service Manual 1 ServicePumps Parameters Screen 0-10VdcOperation Service ManualModBus Timeout 0 - 10Vdc BMS Parameters Screen•BMS Modulation at Minimum Voltage - Determines the modulation rate of the unit or cascade when the BMS input voltage is at or below the setting of the BMS Voltage at Minimum Modulation parameter. This parameter is only active when the BMS Type is set to modulation rate. This parameter can only be changed by the installer. The range of this parameter is 0% to 100%. The default value is 14.5% 1 ServiceService Manual ModBus TimeoutCascade Screen Service ManualService Manual 1 Service1 On 34 80 Temps Screen Service ManualService Manual 1 ServiceBurners Screen Graph Select Screen Service ManualService Manual 1 ServiceHistory Screen Service Mode Screen Service Manualsee the following pages for instructions 2 Maintenance Maintenance and annual startupService technician Owner maintenanceInspect boiler area 2 Maintenance continuedAddress reported problems Clean condensate trapCheck expansion tank 2 MaintenanceFlue vent system and air piping Check water systemInspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settings2 Maintenance continued Check flame signalCleaning boiler heat exchanger Review with ownerService Manual Test low water flow conditions2 Maintenance Test procedureService Manual 3 TroubleshootingAlarm Screen Check control module fuses 3 Troubleshooting continuedBefore troubleshooting Check the following3 Troubleshooting FAULTCAUSE CORRECTIVE ACTION3 Troubleshooting continued Checking temperature sensorsService Manual Table 3E Troubleshooting Chart - Noisy System 3 TroubleshootingFAULT Service ManualCORRECTIVE ACTION DESCRIPTION3 Troubleshooting continued FAULTDESCRIPTION 3 TroubleshootingFAULT Service Manual3 Troubleshooting continued FAULTDESCRIPTION CORRECTIVE ACTIONDESCRIPTION 3 TroubleshootingFAULT Automatic Reset High LimitDESCRIPTION 3 Troubleshooting continuedFAULT Service ManualDESCRIPTION 3 TroubleshootingFAULT Service ManualDESCRIPTION 3 Troubleshooting continuedFAULT Service ManualCORRECTIVE ACTION Combustion Analysis ProcedurePOSSIBLE CAUSE 3 TroubleshootingFigure 3-2 Gas Valve Adjustment: Model Gas valve adjustment procedure3 Troubleshooting continued Service ManualSYNC-SERRev H 01/12