Lochinvar Sync Condensing Boiler 1.3 Bedienungsanleitung

Service ManualModels: 1.0, 1.3, and 1.5This manual must only be used by a qualified heating installer / service technician. Read all instructions, in

1 Service Sequence of operationTable 1A Sequence of operation - space heating and HWNote: This unit is equipped with two (2) independent, but synchr

Parameter tableTable 1B This table lists the parameters and where to access themMENU DESCRIPTIONSEE PAGEUSER ACCESS INSTALLER ACCESSDISPLAY MODIFY DIS

MENU DESCRIPTIONSEE PAGEUSER ACCESS INSTALLER ACCESSDISPLAY MODIFY DISPLAY MODIFYReset T Lo Out 22 Yes No Yes NoReset T Hi Out 22 Yes Yes Yes YesOut T

Viewable and changeable control parametersStatus Screen:When the ON/OFF switch is turned to the ON position, the first screen visible on the LCD displ

Boiler Configuration - This line shows the current configuration of the two control modules inside the unit.Outlet Water Temperature - This is a calcu

1 Service (continued) Details Screen:The Details Screen is accessed by pressing the DETAIL button on the Status Screen. This screen shows the statu

161 Service A blank message box is located on the Details Screen. This box will display various messages detailing the status of the control module.

17Main Screen:1 Service (continued)The Main Screen allows navigation to eight (8) additional screens which are used to set temperatures, operating co

Setup Screen:The Setup Screen allows access to seven (7) other screens for adjusting control parameters. These screens are as follows: • Service / S

Service/Setup Parameters Screen:1 Service (continued)The Service / Setup Screen allows access to 10 parameters. Those parameters are as follows: •

2Hazard definitionsThe following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or

1 Service • Maximum Service Time - Service Mode allows the installer to control the fan speed of the individual control modules for the pur

1 Service (continued)Set Point Parameters Screen:The Set Point Screen allows access to 12 parameters. Those parameters are as follows: • User Set

1 Service 22Outdoor Reset Parameters Screen:When the outdoor air sensor is installed, the control will calculate the water temperature set point base

1 Service (continued)23• Boost Increment - If a system heat call last longer than the programmed boost time setting and there have been no Hot W

1 Service 24Night Setback Parameters Screen:The Night Setback Screen allows access to 15 parameters. Those parameters are as follows:• Date and Tim

1 Service (continued)25Cascade Parameters Screen:Cascade OperationWhen multiple boilers are installed, they can be wired together in a cascade sequen

1 Service 26Pumps Parameters Screen:The Pumps Screen allows access to four (4) parameters. Those parameters are as follows: • Boiler Pump Delay - S

1 Service (continued)270 - 10Vdc BMS Parameters Screen:ModBus Timeout0-10Vdc OperationWhen the Demand Configuration parameter (see page 19) is set to

1 Service28 • BMS Modulation at Minimum Voltage - Determines the modulation rate of the unit or cascade when the BMS input voltage is at or

1 Service (continued)29Cascade Screen:The Cascade Screen provides the status of the cascade system. Items that can be viewed on the Cascade Screen a

3Handling ceramic fiber materialsREMOVAL OF COMBUSTION CHAMBER LININGThe combustion chamber insulation in this appliance contains ceramic fiber materi

1 Service 30 1 803455 On Modbus Address - This is the address of a specific SYNC boiler. This address is set by dip switches on the Modbus communic

1 Service (continued)Temps Screen:The Temps Screen displays the various temperatures as measured by sensors connected to each control module. Items

1 Service Burners Screen:This screen provides the status of the combustion air blowers and flame signals. Items that can be viewed on the Burners Sc

Graph Select Screen:The Graphs Screen consists of two (2) different screens. The first screen is the Parameter Selection Screen. By pressing the box

History Screen:1 Service The History Screen shows the status of various counters and faults for each control module. Selection of the control module

1 Service (continued)Service Mode Screen:The Service Mode Screen allows the individual control modules to override all other heat demands and operate

2 MaintenanceMaintenance and annual startupTable 2A Service and Maintenance SchedulesService technician(see the following pages for instructions)Gene

Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the boiler. Failure to perform th

Flue vent system and air piping1. Visually inspect the entire flue gas venting system and air piping for blockage, deterioration or leakage. Repair

Inspect ignition and flame sense electrodes1. Remove the ignition and flame sense electrodes from the boiler heat exchanger access cover.2. Remove a

What is in this manual?ServiceNear boiler piping• Typical system componentsThe SMART TOUCH display• Touch screen readout, buttons and their functionsC

Check flame signal1. At high fire the flame signal shown on the display should be at least 10 microamps.2. A lower flame signal may indicate a foule

412 Maintenance Test low water flow conditions NOTICEThis test is to be carried out once the SYNC boiler is completely piped in with adequate gas and

3 Troubleshooting42Alarm Screen:If a fault occurs which requires a Manual Reset, the unit will go into a lockout condition and the Alarm Screen will

3 Troubleshooting (continued)Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation

3 Troubleshooting44Table 3A Troubleshooting Chart - No DisplayFAULT CAUSE CORRECTIVE ACTIONNo Display- No 120 VAC supplied to unit. • Check exte

3 Troubleshooting (continued)45Table 3B - Inlet/Outlet System Sensor Resistance vs. TemperatureTemperature Resistance Temperature Resistance50 18,780

3 Troubleshooting46Table 3E Troubleshooting Chart - Noisy SystemFAULT CAUSE CORRECTIVE ACTIONNoisy Operation- Supply gas problem. Natural gas pressu

3 Troubleshooting (continued)Table 3F Troubleshooting Chart - Fault Messages Displayed on Boiler InterfaceFAULT DESCRIPTION CORRECTIVE ACTIONFlow Swi

3 Troubleshooting48Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DESCRIPTION COR

3 Troubleshooting (continued)49Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DES

1 ServiceISOLATION VALVE(TYPICAL)DRAIN (TYPICAL)SYSTEM SUPPLY SENSOR(NOTICE: A SYSTEM SUPPLYSENSOR MUST BE INSTALLED FORPROPER BOILER OPERATION.)Y-S

Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DESCRIPTION CORRECTIVE ACTIONAutoma

3 Troubleshooting (continued) Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DESC

Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DESCRIPTION CORRECTIVE ACTIONAir Fl

3 Troubleshooting (continued)53Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface FAULT DES

3 Troubleshooting Table 3G Troubleshooting Chart - Combustion LevelsPOSSIBLE CAUSE CORRECTIVE ACTIONVent/Air Intake Length or Obstruction• Refer to S

553 Troubleshooting (continued)Gas valve adjustment procedureIf adjustment of the gas valve is deemed necessary, use the following procedures: (Note:

Revision Notes: Revision A (ECO #C02428) initial release.Revision B (ECO #C03046) reflects changes made to the History, Details, and Graphs screen sh

1 Service The SYNC display6 Service Manual

PRIMARY/SECONDARYGAS PRESSURE SWITCHROOM THERMOSTAT /ZONE CONTROLFLOW SWITCHSYSTEM SENSOROUTDOOR SENSORSEQUENCER / BUILDINGMANAGMENT SYSTEMLOW VOLTAGE

LOW VOLTAGE CONNECTIONBOARDPRIMARYCONTROL MODULEALARM BELLRUN TIME CONTACTSSEQUENCER / BUILDINGMANAGEMENT SYSTEMHEAT EXCHANGER 1 /HEAT EXCHANGER 2 BOI

General OperationHow the boiler operatesThe SYNC uses two (2) advanced stainless steel heat exchangers and two (2) electronic control modules that all