Lochinvar 399 - 800 Parameter table

1 Service

16

Service Manual

1 Service

Parameter table (continued)

Table 1D (continued from previous page) This table lists SMART SYSTEM control module parameters and

where to access them

The parameters for Building Management System operation are not listed in this table. They are only

accessible using the PC interface software. See separate documentation for access information. See page

21 of this manual for a brief discussion.

NOTICE

MENU SUB ITEM DESCRIPTION SEE

PAGE

USER ACCESS INSTALLER ACCESS

DISPLAY MODIFY DISPLAY MODIFY

G

1Anti-cycling Time 20 No No Yes Yes

2Return Temperature Differential

for Ending Anti-Cycling 20 No No Yes Yes

3Ramp Delay On/Off 20 No No Ye s Yes

ANTI-CYCLING

H

1SH Controlling Sensor

(Outlet/System, Inlet) 21 No No Yes Yes

2SH Source (Thermostat, BMS,

and Cascade) 21 No No Ye s Yes

3Boiler Cascade Address 21 No No Ye s Yes

4Max. Cascade Set Point 21 No No Yes Ye s

5Cascade Offset 22 No No Ye s Yes

6Cascade Differential 22 No No Ye s Yes

CONTROL

MODES

I

1System Pump Delay 22 No No Yes Yes

2SH Pump Delay 22 No No Ye s Yes

3DHW Pump Delay 22 No No Ye s Yes

CIRCULATION

PUMPS

J

1Service Notification in Month 22 No No Ye s Yes

2Service Notification Running

Hours 22 No No Ye s Yes

3Service Notification Boiler Cycles 22 No No Ye s Yes

4Reset Service Notification Counter 22 No No Yes Ye s

SERVICE

NOTIFICATION

Contents

Main Service Manual Models: 399 - 800 Hazard definitions Contents DANGER WARNING CAUTION CAUTION NOTICE Please read before proceeding Handling ceramic fiber materials REMOVAL OF COMBUSTION CHAMBER LINING NIOSH stated First Aid. Please read before proceeding When servicing boiler Boiler operation Boiler water Freeze protection fluids What is in this manual? Service Near boiler piping The Knight XL display Control module inputs Near boiler piping The Knight XL display LOW VOLTAGE CONNECTION BOARD SMART CONTROL MODULE Control inputs LOW VOLTAGE CONNECTION BOARD SMART CONTROL MODULE Control outputs General Operation How the boiler operates How the control module operates Sequence of operation Saving parameters Sequence of operation Sequence of operation Display panel menu access Table 1B Use this procedure to access menus from the display panel Display panel parameter access Parameter table Table 1D This table lists SMART SYSTEM control module parameters and where to access them OUTDOOR AIR RESET TEMPERATURE F Parameter table Viewable and changeable control parameters A: General B: Temperature settings NOTICE C: Data logging D: Functions E: DHW settings F: Outdoor air reset WATER TEMPERATURE SET POINT OUTDOOR TEMPERATURE G: Anti-cycling H: Control modes Cascade offset I: Circulation pumps J: Service Notification Maintenance and annual startup Service technician Owner maintenance Address reported problems Inspect boiler area Check all piping for leaks Inspect boiler interior Clean condensate trap 2 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 2 Check flame signal Review with owner Cleaning boiler heat exchanger 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 FAULT CAUSE CORRECTIVE ACTION Table 3F Troubleshooting Chart - Fault Messages Displayed on Boiler Interface Gas Pressure SW Flow Switch/LWCO Blocked Drain SW Flame Sequence Anti-cycling No Flame Ign No Flame Running Adjustable High Limit w/Manual Reset Fan Low OR Fan Speed Low Fan High OR Fan Speed High Tank Open Sensor Open Sensor Shorted Aux. Proving Temp O/Shoot Temp O/Shoot (continued) Rem Ctrl Flt Parameters Progr APS Open Service Blk No Error Stored CRC Parameters Watch Dog Error Low 24 VAC Combustion Analysis Procedure POSSIBLE CAUSE CORRECTIVE ACTION Gas valve adjustment procedure Model 500 Model 399 Models 600 - 800