Table of Contents
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100343237_2000600598_Rev A
w/RealTime O2 Trim
TM
Service Manual
Models:
1000 - 6000
Series: 100
C o m b u s t i o n
T e c h n o l o g y
⚠ WARNING
This manual must only be
used by a qualified heating
installer / service technician.
Read
all
instructions,
including this manual and
the Crest Installation and
Operation Manual, before
installing. Perform steps in
the order given. Failure to
comply could result in severe
personal injury, death, or
substantial property damage.
Save this manual for future reference.
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Table of Contents
Related Manuals for Lochinvar 1000
Summarization of Contents
1 Service
Please read before proceeding
Important safety and installation instructions before starting.
Handling ceramic fiber materials
Safety precautions for working with ceramic fiber insulation.
Boiler operation
Explains the basic principles of boiler operation.
Boiler water
Guidelines and warnings related to boiler water quality and maintenance.
Freeze protection fluids
Recommendations for using freeze protection fluids in hydronic systems.
Boiler piping
Piping schemes for proper boiler operation and control.
SMART TOUCH Interface
Overview of the SMART TOUCH display and its sections.
General Operation
How the boiler and control modules function.
Access modes
User and installer access levels and password information.
Control inputs
Diagram illustrating inputs to the SMART CONTROL MODULE.
Control outputs
Diagram illustrating outputs from the SMART CONTROL MODULE.
Sequence of operation
Detailed steps of the boiler's operational sequence.
Initial Setup Screen
Settings for clock, date, and temperature units.
Set Point Screens
Screens for adjusting temperature set points and related parameters.
Outdoor Reset Screen
Configuration of outdoor reset curves for optimal heating control.
Ramp Delay Screen
Settings for controlling heating demand ramp-up times.
BMS Screens
Interface for managing Building Management System integration.
BMS / BAS Parameters
Details on parameters for BMS and BAS control and monitoring.
BAS
Information on controlling the boiler via Building Automation Systems (BAS).
Advanced Setup Screen
Screen for advanced parameters like freeze protection and anti-cycling.
Night Setback Screen
Settings for programming night setback schedules for energy saving.
Pump Screen
Configuration options for boiler, system, and DHW pumps.
Cascade Screens
Setup screens for configuring multiple boilers in a cascade.
Service Screens
Interface for manual control and testing of boiler functions.
Graph Screens
Tools for visualizing and analyzing historical data.
History Screen
View lockout faults and runtime history for diagnostics.
2 Maintenance
Maintenance and annual startup
Schedules and procedures for routine maintenance and annual startup.
Address reported problems
Steps for diagnosing and correcting issues reported by the owner.
Check all piping for leaks
Procedure to inspect and verify all piping for leaks.
Flue vent system and air piping
Inspecting the flue gas venting and air intake systems.
Check water system
Verifying system components and water pressure.
Check expansion tank
Inspecting the expansion tank for proper function.
Test boiler water
Testing boiler water and cleaning if necessary.
Check boiler relief valve
Inspecting and testing the boiler's safety relief valve.
Inspect ignition and flame sense electrodes
Checking and cleaning ignition and flame sense electrodes.
Check control settings
Verifying and adjusting control module settings.
Check burner flame
Inspecting the burner flame for proper operation.
Handling ceramic fiber materials
Safety guidelines for handling ceramic fiber materials.
Test low water flow conditions
Procedure to test the boiler's response to low water flow.
3 Troubleshooting
Check control module fuses
Procedure for checking and replacing control module fuses.
Before troubleshooting
Essential items and checks required before starting troubleshooting.
Troubleshooting Chart - No Display
Guide for diagnosing and resolving "No Display" issues.
Checking temperature sensors
Procedures for checking temperature sensor resistance values.
Troubleshooting Chart - Noisy System
Guide for diagnosing and resolving noisy system operation.
Troubleshooting Chart - Fault Messages Displayed on Boiler Interface
Guide for interpreting and resolving fault messages.
Combustion Analysis Procedure
Steps for performing combustion analysis on the boiler.
Troubleshooting Chart - Combustion Levels
Guide for diagnosing issues related to combustion levels.
Gas valve adjustment procedure
Procedure for adjusting the gas valve regulator.
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