Eclipse Linnox SP CCS-LS User manual

No. 159, 2/20/04
Installation Guide
Model CCS-LS
Version 1
Linnox SP
Burners

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
2
Copyright 2003 by Eclipse, Inc. All rights reserved worldwide.
This publication is protected by federal regulation and shall not
be copied, distributed, transmitted, transcribed or translated
into any human or computer language, in any form or by any
means, to any third parties, without the express written
consent of Eclipse Combustion, Inc., Rockford, Illinois, U.S.A.
We reserve the right to change the construction and/or
configuration of our products at any time without being obliged
to adjust earlier supplies accordingly.
The material in this manual is believed adequate for the
intended use of the product. If the product, or its individual
modules or procedures, are used for purposes other than those
specified herein, confirmation of their validity and suitability
must be obtained. Eclipse, Inc. warrants that the material itself
does not infringe any United States patents. No further
warranty is expressed or implied.
We have made every effort to make this manual as accurate and
complete as possible. Should you find errors or omissions,
please bring them to our attention so that we may correct
them. In this way we hope to improve our product
documentation for the benefit of our customers. Please send
your corrections and comments to our Documentation
Manager.
It must be understood that Eclipse’s liability for its products,
whether due to breach of warranty, negligence, strict liability, or
otherwise, is limited to the furnishing of such replacement parts
and Eclipse will not be liable for any other injury, loss, damage
or expenses, whether direct or consequential, including but not
limited to loss of use, income of or damage to material arising
in connection with the sale, installation, use of, inability to use
or the repair or replacement of Eclipse’s products.
Any operation expressly prohibited in this Guide, any
adjustment, or assembly procedures not recommended or
authorized in these instructions shall void the warranty.
COPYRIGHT
DISCLAIMER NOTICE
LIABILITY AND
WARRANTY

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 3
This manual has been written for personnel already familiar with
all aspects of pre-mix burners.
These aspects are:
•Installation
•Use
•Maintenance
•Safety
The audience is expected to be qualified and have experience of
this type of equipment and its working environment.
Installation Guide No. 159 IG
•This document
This document covers the basic standard Linnox® burner
configurations. Normally this document is part of the over-all
project documentation covering the complete burner system.
Data Sheets 159-1 and 159-2
•Appropriate data to be provided with this Guide
• EFE 825 (Combustion Engineering Guide)
• Eclipse bulletins and Info Guides:
610, 710, 720, 730, 742, 744, 760, 930
Purpose
The purpose of this manual is to make sure that you carry out the
installation of a safe, effective and trouble-free combustion system.
CCS-LS DOCUMENTS
RELATED DOCUMENTS
(ATTACHED IF APPLICABLE)
AUDIENCE
About this manual

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
4
There are several special symbols in this document. You must
know their meaning and importance.
Following is an explanation of the symbols. Please read
thoroughly.
Danger:
Indicates hazards or unsafe practices which
WILL result in severe personal injury or even
death. Only qualified and well trained personnel
are allowed to carry out these instructions or
procedures.
Act with great care and follow the instructions.
Warning:
Indicates hazards or unsafe practices which
could result in severe personal injury or damage.
Act with great care and follow the instructions.
Caution:
Indicates hazards or unsafe practices which could
result in damage to the machine or minor personal
injury.
Act carefully.
Note:
Indicates an important part of the text.
Read thoroughly.
If you need help, contact Eclipse Combustion or your local Eclipse
representative.
DOCUMENT CONVENTIONS
HOW TO GET HELP

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 5
Table of Contents
About this manual...........................................3
Audience............................................................3
CCS-LS Documents..............................................3
Related Documents...............................................3
Document Conventions..........................................4
How to Get Help..................................................4
Table of contents.............................................5
Introduction....................................................6
Product description...............................................6
Safety...............................................................7
Introduction.........................................................7
Safety.................................................................7
Capabilities..........................................................7
Installation.......................................................8
Introduction.........................................................8
Handling and storage.............................................8
Pre-installation Checklist.........................................8
Burner Mounting...................................................9
Gas Supply...........................................................9
Electrical Supply....................................................10
Checklist after installation.......................................10
Description of Burner Operation....................11
Description of Start up Sequence.............................. 11
Diagram (PID)......................................................12
Commissioning...............................................13
Introduction.........................................................13
Factory Settings....................................................13
Adjustments.........................................................13
Step.1:Preparation.................................................13
Step 2: Dry Run....................................................14
Step 3: Combustion Air Check..................................14
Step 4: Start Up....................................................15
Step 5: Operating Checks........................................17
Maintenance....................................................18
Introduction.........................................................18
Maintenance........................................................18
Troubleshooting...............................................20
Introduction........................................................20
Troubleshooting Procedures.....................................20
1
2
3
4
5
6
7

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
6
1
Introduction
PRODUCT DESCRIPTION The Linnox burner is a pre-mix type burner, especially
designed for direct-air heating applications where the lowest
achievable NOx and CO levels are required.
The Linnox burner combustion is based on high excess air pre-
mix combustion to keep the flame temperatures low. At the
same time the burner geometry establishes an internal
recirculating flame pattern. These two factors result in both very
low NOx and CO emissions at a high turn-down rate while
maintaining extremely stable combustion.
The Linnoxe burner is designed for applications where a linear
heat distribution is required.
A special feature is the possibility to configure the burner for
different capacities along the burner length by choosing from a
wide range of exchangeable burner modules of 300 mm length.
The Linnox burner is designed to provide:
•Reliable operation
•Simple adjustments
•Direct spark ignition
•Exchangeable igniter and flame rod from outside of the
installation.
•Modulating control (Air and gas)
•Exchangeable burner modules varying from 24 to 720 kW
per 300 mm.

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 7
This section is provided as a guide for the safe operation of the
Eclipse Linnox burners. All involved personnel should read this
section thoroughly before operating this system.
Danger:
The burners covered by this Guide are designed to
mix gas with air and burn the resulting mixture.
All gas burning devices are capable of producing
fires and explosions if improperly applied,installed,
adjusted, controlled or maintained.
Do not bypass any safety feature! Fire or explosion
could result.
Never try to light a burner if it shows signs of
damage or malfunction.
Note:
Personal safety and the Safety of others is a direct result of
how equipment is installed, operated and maintained. Read
and understand this Guide before attempting to light the
burner. The Guide provides information for installing, operating
and maintaining the Eclipse burner within the limits of its
design specifications. Do not deviate from any instructions or
application limits without written advice from
Eclipse Combustion.
Only qualified personnel, with good mechanical / electrical apti-
tude and experience with combustion equipment, should adjust,
maintain or troubleshoot any mechanical or electrical part of this
system
2
Safety
INTRODUCTION
SAFETY
CAPABILITIES

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
8
This section provides guidance for correct installation of the
Eclipse Linnox burners.
Warning:
Only qualified competent personnel with
experience of combustion systems are allowed to
install, adjust or maintain the burner.
All installation work must be carried out in
compliance with current legislated standards.
Handling
Inspect the burner package, ensuring that all components are
clean and free from damage.
Use appropriate support and handling equipment when lifting the
burner.
Protect the burner from weather, damage, dirt and moisture.
Protect the burner package from excessive temperatures and
humidity.
Storage
When storing the burner for an extended period, Eclipse
recommends placing it in a cool, clean, dry room.
Air Supply
Provide an opening in the burner room of at least one square
inch per 4000 BTU/hr (6 cm2 per 1 kW) to supply the burner
intake with fresh, outdoor, combustion air.
Exhaust
Do not allow exhaust gases to accumulate in the work area.
Provide a means for exhausting these gases from the building.
3
Installation
INTRODUCTION
HANDLING AND STORAGE
PRE-INSTALLATION
CHECKLIST

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 9
Access
Install the burners so they may be easily accessed for inspection
and maintenance.
Environment
Be sure the burner operating environment matches the original
operating specifications. Check the following items:
•Voltage, frequency, and stability of power.
•Fuel type and supply pressure.
•Adequate fresh and clean combustion air.
•Humidity, altitude and temperature of the supply air.
•Presence of damaging corrosive gases in the air.
•Prevent direct exposure to water.
Because Linnox burners are tailor made for your application
please refer to the attached assembly drawing for information of
mounting plate dimensions and insulation thickness.
The burner mounting plate is provided with:
- sight glass for flame observation
- pressure tap for measuring process pressure
- with or without insulation box (refer to assembly drawing)
- with or without gasket between mounting plate and
installation. (refer to assembly drawing).
Caution:
The burner flame shields can reach a temperature of
1650°F (900°C) at 480°F (250°C) process temperature
before the burner. Measurements should be taken to prevent
excessive thermal load on the process ducting.
The burner should not be used as a support for the incoming gas
supply pipe work. Suitable brackets or hangers should be pro-
vided for this purpose. Care should be taken to ensure that the
incoming gas pipe is adequately sized for the necessary gas flow
and burner pressure (See appropriate data sheet for gas pressure
requirements).
Warning:
Gas inlet pressures must stay within the specified
range. Pressure above the specified range can
damage the ratio regulator.
Pressure below the specified range can impair the
ability of the ratio regulator to control the gas
flow.
BURNER MOUNTING
GAS SUPPLY

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
10
ELECTRICAL SUPPLY
CHECKLIST AFTER
INSTALLATION
The burner should be controlled via a sequence programmer,
approved according the local standards. For connections, please
refer to the related wiring diagrams.
Warning:
Wiring to the burner must be in accordance with
current wiring standards. It is vital that the live
and neutral wires are connected correctly as
reversal could present a hazard. Also the earth
bonding must be checked to ensure a good con-
nection. (Wiring diagrams are provided with this
Guide)
GAS PIPEWORK MUST NOT BE USED FOR
EARTHING PURPOSES.
If burner control signals are supplied via a flame
safeguard control panel provided by others,
Eclipse Combustion can not accept any respon-
sibility for incorrect interfacing.
To verify the system was properly installed, perform the
following checks:
1. Be sure there are no leaks in the gas lines.
2. Be sure all wiring is properly connected.
3. Be sure all interlocks are working properly.
4. Be sure correct air and gas pressures are available.
5. At systems with high negative or positive process pressures,
take care that pressure switches and pressure regulators
(purge air) are cross connected to the process pressure.

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 11
Description of Burner
Operation
The complete start-up sequence is controlled by the burner
programmer (This may be supplied with the burner or, it may be
installed in a separate control panel supplied by others).
The combustion chamber or ducting must be purged in
accordance with current standards prior to the burner start up
sequence.
After the start up signal to the burner, the combustion air blower
(3) will be energised. As soon as the combustion air pressure
switch (PA) is activated by sufficient combustion air pressure and
the micro switch in the control motor is closed, the burner
programmer starts to cycle.
The control motor will travel to its start position (20% of max.
capacity). Then the ignition transformer will be energised by the
burner programmer and a spark will be generated at the igniter
(9). The igniter is so called “gas supported” and is supplied
through a by-pass gas valve(13). To prevent condensation, both
flame rod or UV Cell and igniter are purged with combustion air,
branched after the first shut-off valve. To limit the purge air flow
a pressure regulator (12) is mounted in the purge air line.
At the same time that the igniter is energised, the first shut-off
valve (6) and the by-pass valve (13) open. A small support flame
will appear that will later help to ignite the main flame. The
support flame will extinguish after the main flame comes in.
The second safety shut-off valve (5) will next be energised. The
gas flows through both safety shut-off valves and the internal gas
ratio-regulator to the mixer unit, where it mixes with the com-
bustion air. The gas flow is controlled proportionally to the air
flow by the gas ratio-controller, which has been cross connected
to the air pressure and the mixture pressure to reach a stable
gas-air ratio, independent from process temperature and
pressure. The mixture is ignited at the burner base, after which
the flame is detected and monitored by a flame ionisation probe
or an ultra violet scanner (10).
DESCRIPTION OF
START UP SEQUENCE
4

Eclipse Linnox Model CCS-LS, Installation Guide 159, 12/18/03
12
DIAGRAM ( PID )
After the flame detection device is satisfied that a stable flame
has been established, the burner programmer releases the burner
for control by the temperature controller (supplied by others).
The air control motor will be positioned to satisfy the set point
of the temperature controlling instrument. The air valve opens
which results in an increased air pressure at the burner. The gas
ratio-controller supplies a gas flow corresponding to the amount
of combustion air.
The high fire gas flow is limited by an adjusting valve, that has to
be adjusted for the specified gas type at the location of
operation.
1. Burner
2. Gas / air mixer
3. Blower
4. Control motor
5. Gas ratio regulator
6. Shut-off valve
7. Adjustment valve max. capacity
8. Manual isolating ball valve
9. Igniter
10. Flame supervision
11. Adjustment valve, by-pass gas
12. Purge air pressure regulator
13. By-pass gas shut-off valve
14. Pressure switch, air
15. Pressure switch, gas
Pg. Gas pressure at mixer inlet
Pa. Air pressure at mixture inlet
Pm. Mixture pressure
Pp. Process pressure
Pgv. Gas pressure at valve train inlet

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 13
This section describes how to start up and adjust the
Eclipse Linnox burners.
Danger:
The burners covered by this Guide are designed to
mix gas with air and burn the resulting mixture.
All gas burning devices are capable of producing
fires and explosions if improperly applied,installed,
adjusted, controlled or maintained.
Do not bypass any safety feature! Fire or explosion
could result.
Never try to light a burner if it shows signs of
damage or malfunction.
All pressure switches are factory adjusted.
The mixer gas nozzles are sized for the correct gas type.
Adjustment steps:
1. Preparation
2. Dry run
3. Combustion air check
4. Start-up and low fire adjustment
5. Operating checks
1. Ensure all installation work has been completed in
compliance with current legislated standards.
2. Ensure that all gas supply pipework has been purged of air in
compliance with current legislated standards.
3. Ensure that all required services are available.
4. Ensure that all pre-checks have been completed in
compliance with current legislated standards.
5. Ensure that the following instruments are available
- digital or “U”- tube manometer for pressure adjustments.
- µA - meter to measure flame signal strengths.
Commissioning
INTRODUCTION
FACTORY SETTINGS
5
ADJUSTMENT
Step 1: Preparation

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
14
6. Check the setting of the maximum gas pressure switch and
the minimum air pressure switch. The maximum gas pressure
switch is adjusted 20% higher than the maximum gas pressure
on the burner. The minimum air pressure switch is adjusted to
approx. 20% of the maximum air pressure.
The air pressure depends on the selected combustion air
blower. Please refer to the related project documentation.
1. Ensure that the process air blower is running.
2. Ensure that the manual isolating ball valve is closed.
3. Initiate the electrical supply to start the operating sequence.
The combustion air blower will start running. If the sequence
is operating correctly, the programmer will run through to
the point of ignition, the safety shut-off valves will open and,
in absence of a flame, will proceed to a lockout condition.
Danger:
If simulated limits or simulated flame failures do
not shut down the fuel system within the required
response time, immediately correct the problem
before proceeding.
Note:
On multiple burner systems with a central combustion air
blower, one should remember that the combustion air pressure
will change, depending on the total air demand.
If one burner is adjusted, it is advised to set the combustion
air of all other burners to at least 50% of the maximum
capacity if not in operation. This will prevent flame failures or
inability to reach the high fire capacity when the installation is
switched to normal operation.
Low fire air adjustment procedure:
1. Start the combustion air blower.
2. Drive control motor to low fire position (activate the manual
switch or lock first).
3. Measure air differential pressure between tap (Pa) and the
process tap (Pp).
4.Adjust low fire air if necessary.
Note:
The slot at the end of the BV (air damper) shaft indicates the
position of the BV. The BV is closed when the shaft slot is
perpendicular to the direction of air flow through the BV.
For adjustment of the BV, adjust the lever mechanism.
Step 2: Dry run
Step 3: Combustion air check

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 15
5. Verify high fire air
a. Drive control motor to high fire, fully open.
b. If high fire air is insufficient, refer to Section 7,
“Trouble-shooting”.
6. Return the control motor to low fire position.
7. Close the pressure taps.
Start-up procedure:
1. Check the pre-setting of the adjustment valves.
2. Switch the control motor to “automatic”.
3. Open the manual isolating ball valve.
4. Initiate the burner management system to start the operating
sequence. The control motor will be controlled to the start
position after which the ignition will take place.
The ignition support flame should appear approx. 2”-8” (5 - 20
cm) beyond the flame shields in a mixed blue and yellow colour.
If flame is too weak or too big, adjust the support flame with
adjusting valve (7). Support flame appearance also depends on
the start position of the combustion air valve.
After the pre-ignition time (2 sec. according EN 746-2) the 2nd
shut-off valve will open and the Linnox burner will be ignited. A
clear blue line flame will appear at the burner base.The appear-
ance will vary for the different capacity ratings of the burner
elements.
If the burner does not light the first time it will be necessary to
reset the burner programmer and follow this procedure again.
5. If the the burner did not ignite:
a. Attempt to ignite the burner again after purging air
from the gas piping.
b. If the support flame does not appear, open the
adjusting valve (11) 1 turn.
c. If the flame appears at ignition, but the main burner does
not light, turn the bias adjusting screw of the gas ratio
regulator (5) one turn clockwise to increase gas flow and
try to ignite the burner again.
d. Repeat steps b and c until burner ignites. If the burner
does not ignite, follow guidelines in Section 7 “Trouble-
shooting”.
Step 4: Start-up

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
16
6. Set system control to stay at low fire during and after ignition
sequence or set control motor to manual.
7. Adjust gas flow with the low-fire bias adjustment screw
for lowest gas flow that maintains a stable flame signal:
- clockwise, for more fuel
- counter-clockwise, for less fuel
With ionisation flame safe guarding adjust until a stable flame
signal of min. 15 µA at cold recirculation air conditions or 20
µA at hot recirculation air conditions>390°F (>200°C).
With UV flame safe guarding, ensure that lowest flame signals
are stable and significantly higher than the switch off.
At low fire the gas diffential pressure across the mixer will be
too low, approximately .08”w.c. (0,2 mbar) for a reliable
adjustment.
Eventually, the static gas pressure at the mixer can be used as
a pre-setting of the burner.
Note:
A visual check of the flame is important to ensure the correct
burner adjustment.
If the recirculating process air is cold >212°F (<100°C), the
burner elements will not glow or just partly start to glow.
If the recirculating process air is hot >390°F (>200°C), the
burner elements will partly glow.
The visual appearance of the low-fire flame is clear blue, with
some glowing parts of the burner elements.
8. Set the burner to high fire:
a. Check the differential air pressure.
b. Adjust the corresponding gas pressure with the
adjustment valve (7).
Fasten the lock screw at the adjustment valve after
finishing adjustment.
Note:
A visual check of the flame is important to ensure the correct
burner adjustment. The flame will be sharp blue-white with a
slightly orange glowing tip. The length of this tip depends on
the burner capacity rating.
If the flame tip is dominantly orange, the burner may be set
too gas rich. Refer to Section 7 for trouble-shooting tips.
The burner flame shields are allowed to glow red hot,
depending on the burner capacity rating and the process
temperatures.
Low fire settings
High fire settings

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 17
Step 5: Operating checks
9. If the setting of adjustment valve (7) has been changed, repeat
step 6and 7again to check and re-adjust the low fire setting.
Caution:
Adjusting the burner too gas-rich will shorten the life time of
the burner elements and flame shields. Therefore, have a
qualified Eclipse engineer adjust and regularly check the
burner settings.
1. Simulate a flame out condition by closing the manual inlet ball
valve. Run the ignition cycle again.
2. Check high gas pressure switch for correct operation by
reducing the set point until it trips. The burner must be at
high fire. Re-set to the original setting and run the ignition
cycle again.
3. Check the combustion air pressure switch for correct
operation by increasing the set point until it trips. Re-set to
the original setting and run the ignition cycle again.
4. Measure and record the gas and air differential pressure and
flame signal at low and high fire for future reference.
Danger:
If simulated limits or simulated flame failures do
not shut down the fuel system within the required
response time, immediately correct the problem
before proceeding.
Caution:
Do not turn the combustion air blower off until the chamber
temperature is below 250°F (120°C). This will prevent hot
gases from flowing back through the burner and the blower
and causing damage to the burner.

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
18
Interval
Subject Action
Adjustments ·Check and compare burner adjustments with the
original recorded settings. Correct the settings if
they are outside the specified tolerance range.
xx
Combustion air
filter
·Check and clean or replace the combustion air
filter if necessary.
x
Air control
valve
·Check for correct operation. x
Gas filter ·Check and clean or replace the gas filter if
necessary.
xx
Gas
components
·
·
·
Check all components for damage (visually).
Leak test shut-off valves.
Check manual shut-off valve for correct operation.
x
x
x
Cables and
connectors
·Visually check all cables and connectors for
damage and tightness.
x
Gas piping ·
·
Check all gas piping and connections for leakage.
Leakages must be cured immediately.
Check tightness of all bolted / screwed joints.
x
x
x
x
Burner /
mixture duct
·
·
·
·
Check burner and mixer unit for leakage, damage
or deterioration. Especially those parts in contact
with the process environment, must be inspected
thoroughly.
Check the flame shields, burner elements and all
joints for wear or damage.
Check if the burner element fixing nuts are tight.
Clean the burner. Flame shields must not be
covered with dust or dirt.
x
x
x
x
x
x
x
1 month after
commissioning
3 months
6 months
12 months
As per supplier's
instructions
Depending on
circumstances
Maintenance 6
INTRODUCTION
MAINTENANCE
Preventative maintenance is the key to a reliable, safe and efficient
system.The core of any preventative maintenance
programme is a list of periodic tasks. Preventative maintenance is
the key to a reliable, safe and efficient system.The core of any
preventative maintenance programme is a list of periodic tasks.
Note:
These are guidelines only.The customer should make
the final judgement on maintenance intervals and
tasks to be performed while considering the working
environment.

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04 19
MAINTENANCE (CONTINUED)
Flame safety ·
·
Check the interlocks by simulating fault conditions.
Resolve all flame safety problems before re-
starting the burner.
Replace the UV sensor within the time frame as
specified by the supplier.
x
x
Igniter /
flame rod
·Check and clean or replace the igniter / flame rod x
Thermal
overlaod
·Check the direct burner surroundings for signs of
excessive corrosion or deformation due to
thermal overload. Repair or replace insulation or
thermal protection shields if necessary.
xx

Eclipse Linnox Model CCS-LS, Installation Guide 159, 2/20/04
20
Troubleshooting
Trouble shooting of electrical circuits should be done by quali-
fied plant electricians, technicians or engineers experienced in all
facets of this type of combustion equipments.
7
INTRODUCTION
TROUBLESHOOTING PROCEDURES
PROBLEM POSSIBLE CAUSE SOLUTION
Cannot initiate a start up
sequence. ·Combustion air pressure switch has not made "No Air" contact. Check air pressure switch adjustment (See para. 5 step 1).
Check air filter if fitted.
Check blower rotation.
Check outlet pressure from
blower.
·External interlock failure. Check all external interlocks.
·High gas pressure switch has
activated. Check pressure switch settings (See para. 5 step 1).
·
·
Malfunction of the burner
programmer.
No power supply to the burner
programmer.
Have a qualified electrician
troubleshoot and correct the
problem.
Burner sequence starts but
locks out before ignition. Combustion air fault:
·
·
·
·
Blower failure.
Blocked blower inlet or filter.
Pressure switch failure.
3 way solenoid valve failure.
Check blower and remedy
fault.
Clean inlet. Clean or replace
filter.
Check pressure switch and
replace if necessary.
Check solenoid valve. Replace
coil if necessary.
Burner start up sequence
runs but does not light. No ignition:
·
·
·
·
·
No power to the ignition
transformer.
Open circuit between the ignition
transformer and the ignition
electrode.
Ignition electrode needs cleaning.
The ignition electrode is not
properly grounded to the burner.
Ignition electrode insulator is
broken.
Restore power to the ignition
transformer.
Repair or replace wiring to the
ignition electrode.
Clean the ignition electrode.
Clean the threads on the
ignition electrode and burner.
Inspect the ignition electrode
and replace if broken.
Not enough gas:
·
·
The support gas valve is not opening.
The support gas flow is adjusted too
low.
Check wiring to the support
gas valve.
Check the output from the
burner programmer.
Open adjusting valve 1 turn.