Lochinvar 1, 1.3 service manual

Contents

Main Service Manual Models: 1.0, 1.3, and 1.5 Hazard definitions DANGER WARNING CAUTION CAUTION NOTICE Contents Please read before proceeding Handling ceramic fiber materials REMOVAL OF COMBUSTION CHAMBER LINING NIOSH stated First Aid. When servicing boiler What is in this manual? Service Near boiler piping The SMART TOUCH display Control module inputs Near boiler piping Page LOW VOLTAGE CONNECTION BOARD SECONDARY SMART CONTROL MODULE PRIMARY SMART CONTROL MODULE Control inputs Page General Operation How the boiler operates How the control module operates Sequence of operation Access modes Sequence of operation Parameter table Table 1B This table lists the parameters and where to access them SET POINT PARAMETERS MENU DESCRIPTION SEE PAGE USER ACCESS INSTALLER ACCESS DISPLAY MODIFY DISPLAY MODIFY Table 1B (continued from previous page) This table lists the parameters and where to access them SETBACK PUMPS BMS Viewable and changeable control parameters Status Screen: Page Details Screen: Page Main Screen: Setup Screen: Service/Setup Parameters Screen: Page Set Point Parameters Screen: Outdoor Reset Parameters Screen: Page Night Setback Parameters Screen: Cascade Parameters Screen: Pumps Parameters Screen: 0 - 10Vdc BMS Parameters Screen: Page Cascade Screen: Page Temps Screen: Burners Screen: Graph Select Screen: History Screen: Service Mode Screen: Maintenance and annual startup Service technician Monthly Daily Address reported problems Inspect boiler area Check all piping for leaks Inspect boiler interior Clean condensate trap Flue vent system and air piping Check water system Check expansion tank Check boiler relief valve Inspect ignition and flame sense electrodes Check ignition ground wiring Check all boiler wiring Check control settings Perform start-up and checks Check flame signal Review with owner Cleaning boiler heat exchanger Test low water flow conditions NOTICE Test procedure Alarm Screen: Before troubleshooting: Check the following: Check control module fuses Table 3A Troubleshooting Chart - No Display FAULT CAUSE CORRECTIVE ACTION No Display No Burner Operation Unit Does Not Modulate Above 50% Checking temperature sensors Table 3E Troubleshooting Chart - Noisy System FAULT CAUSE CORRECTIVE ACTION Noisy Operation No Pump Operation - Boiler Pump System Pump or HW Pump Relief Valve Opening Table 3F Troubleshooting Chart - Fault Messages Displayed on Boiler Interface Flow Switch/ LWCO Condensate Drain Blocked Flame out of Sequence Gas Valve / Connection Burner Did Not Light (contd) Flame Lost While Running Flame Lost While Running (contd) Manual Reset High Limit Automatic Reset High Limit / HEX- Temp SW Blower RPMs Too Low Blower RPMs Too High Tank Open Sensor Open Sensor Shorted Flue Sensor Open / Removed Air Flow Too Low Flap Valve Stuck Open Too Many Resets - Try Later Voltage Too Low Internal Fault Writing to Memos CRC Parameters No Error Stored Flue Temp Shutdown Combustion Analysis Procedure Gas valve adjustment procedure Model 1.0 Models 1.3 - 1.5