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Knight 100 Series User Manual

Knight 100 Series
52 pages
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Service Manual
Models: 55 - 399
Series 100 & 101
This manual must only be used
by a qualified heating installer
/ service technician. Read all
instructions, including this
manual and the Knight Fire Tube
Boiler 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.
100305187_2000558071_Rev B
WARNING
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Knight 100 Series Specifications

General IconGeneral
Aspect Ratio16:9
Viewing Angle178° (H) / 178° (V)
Video InputHDMI, VGA
Panel TypeIPS
VESA Mount100 x 100 mm
Resolution1920 x 1080
Contrast Ratio1000:1
Power Supply100-240V AC, 50/60Hz
Response Time5ms
Input Ports1 x HDMI, 1 x VGA

Summary

Service

Please read before proceeding

Read all instructions before installing the boiler and follow safety guidelines.

Handling ceramic fiber materials

Information on handling ceramic fiber materials, including safety precautions and disposal.

Control System Inputs

Low Voltage Connection Board Inputs

Diagram showing various sensors and switches connected to the low voltage connection board.

Smart Control Module Inputs

Illustrates inputs connected to the Smart Control Module for boiler operation.

Control System Outputs

Low Voltage Connection Board Outputs

Diagram showing outputs controlled via the low voltage connection board.

Smart Control Module Outputs

Illustrates outputs controlled by the Smart Control Module for boiler functions.

Boiler Control Functions and Wiring

Temperature Control and Protection

Details how the control module manages temperature, including limits and protection features.

Freeze Protection and Field Wiring

Covers freeze protection features and various field wiring connections for sensors and controls.

Boiler Operation and Configuration

System Operation and Parameter Management

Explains sequence of operation, parameter access modes, setup wizard, and parameter saving.

Boiler Sequence of Operation

Boiler Sequence of Operation (Continued)

Display Panel Menu Access

Accessing Installer Menu

Step-by-step guide to access the installer menu using the display panel buttons and navigation.

Parameter Access and Temperature Settings

SMART SYSTEM Parameter Table - General and Temperature

SMART SYSTEM Parameter Table - DHW and Outdoor Reset

SMART SYSTEM Parameter Table - Control Modes and BMS

SMART SYSTEM Parameter Table - Pumps and Notifications

Temperature and System Settings

Space Heating Temperature Parameters

Details SH Set Points, Minimum/Maximum Set Points, Offset, and Differential settings.

DHW and Outdoor Reset Configuration

DHW Management and Outdoor Reset Details

Outdoor Reset Curve Configuration

Cascade and Control Mode Configuration

Cascade Operation Parameters

Covers Cascade Address, Set Point, Offset, Differential, and Type for multi-boiler systems.

Advanced Cascade and BMS Configuration

Building Management System (BMS) Integration

Explains BMS activation, type selection, and control modes for system integration.

BMS Control Parameters

Circulation Pump Configuration

Maintenance and Annual Startup

Service Technician Maintenance Tasks

Lists maintenance tasks for service technicians, including annual startup procedures.

Boiler Inspection and Cleaning Procedures

Leak Checks and System Verification

Ignition, Wiring, and Burner Checks

Flame Signal, Owner Review, and Heat Exchanger Cleaning

Low Water Flow and High Limit Tests

Low Water Cutoff (LWCO) Test Procedure

Procedure to test the low water cutoff function by simulating low flow conditions.

Manual Reset High Limit (MRHL) Test

Procedure to test the manual reset high limit by adjusting its set point.

Troubleshooting - Control Module Fuses

Fuse Checks and Replacement

Instructions for checking and replacing control module fuses.

Troubleshooting Display and Operation Issues

No Display Faults

Troubleshooting steps for when the boiler display shows no information.

Burner Operation and Modulation Faults

Addresses issues with no burner operation and units not modulating above 50%.

Troubleshooting - System Noise and Pump Issues

Troubleshooting - Fault Messages and Safety Switches

Troubleshooting - Anti-cycling and Ignition Faults

Flame Failure Ignition Faults

Procedure for diagnosing and correcting flame failure during ignition attempts.

Troubleshooting - Flame Sequence and High Limit Faults

Outlet High Limit Faults (ARHL)

Addresses faults related to automatic and manual reset high limit temperature exceedances.

Troubleshooting - Fan Speed and Sensor Faults

Inlet, Outlet, or Flue Sensor Faults

Diagnosing faults related to disconnected or shorted temperature sensors.

Troubleshooting - Temperature Rise and Outlet Limit Faults

Combustion Analysis and Troubleshooting

Combustion Analysis Procedure

Step-by-step guide for performing a combustion analysis on the boiler.

Combustion Level Troubleshooting

Troubleshooting chart for common combustion level issues.

Gas Valve Adjustment Procedure

High Fire Gas Valve Adjustment

Procedure for adjusting the gas valve for high fire settings to optimize CO2 levels.

Low Fire Gas Valve Adjustment

Procedure for adjusting the gas valve for low fire settings to optimize CO2 levels.