Eclipse | RatioMatic RM Series | Installation guide | Eclipse RatioMatic RM Series Installation guide

Installation Guide
No.110 7/1/03
RatioMatic
Burners
RM Series
Version 3.10
COPYRIGHT
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, Inc., Rockford, Illinois, U.S.A.
DISCLAIMER NOTICE
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.
LIABILITY AND
WARRANTY
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.
2
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
About this manual
AUDIENCE
This manual has been written for people who are already
familiar with all aspects of a nozzle-mix burner and its add-on
components, also referred to as “the burner system.”
These aspects are:
• installation
• use
• maintenance.
The audience is expected to have had experience with this kind
of equipment.
RATIOMATIC
DOCUMENTS
Installation Guide No. 110
• This document
RatioMatic Data Sheets, Series 110
• Available for individual RM models
• Required to complete installation
Design Guide No. 110
Used with Data Sheet to design burner system
RatioMatic Price List No. 110
Used to order burners
RELATED DOCUMENTS
•
•
EFE 825 (Combustion Engineering Guide)
Eclipse Bulletins and Info Guides: 710, 732, 742, 760, 818,
832, 852, 854, 856, 610, 620, 630, 826, 820, 930, I-354.
Purpose
The purpose of this manual is to ensure the installation and
adjustment of a safe, effective and trouble-free combustion system.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
3
DOCUMENT
CONVENTIONS
There are several special symbols in this document. You must
know their meaning and importance.
The explanation of these symbols follows below. Please read it
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 pratices 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.
HOW TO GET HELP
4
If you need help, contact your local Eclipse Combustion
representative. You can also contact Eclipse Combustion at any
of the addresses listed on the back of this document.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Table of Contents
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . .
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RatioMatic Documents . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . .
How to Get Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
4
4
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
8
8
8
3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handling and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .
Approvals of Components . . . . . . . . . . . . . . . . . . . . . .
Pre-installation Checklist . . . . . . . . . . . . . . . . . . . . . . .
Burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check List After Installation . . . . . . . . . . . . . . . . . . . . .
9
9
9
11
11
13
15
4
Adjustment, Start & Stop . . . . . . . . . . . . . . . . . . . .
Step 1: Reset the system . . . . . . . . . . . . . . . . . . . . . . .
Step 2: Set low fire air . . . . . . . . . . . . . . . . . . . . . . . . .
Step 3: Ignite the burner . . . . . . . . . . . . . . . . . . . . . . .
Step 4: Set low fire gas (if required) . . . . . . . . . . . . . .
Step 5: Verify settings . . . . . . . . . . . . . . . . . . . . . . . . . .
16
16
18
19
24
26
Maintenance & Troubleshooting . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Monthly Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Yearly Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . .
27
27
27
28
29
5
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Key to System Schematics . . . . . . . . . . . . . . . . . . . . . . 33
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
5
Introduction
PRODUCT DESCRIPTION
1
The RatioMatic Version 3.10 is a nozzle-mix type burner
designed for direct air heating, indirect air heating, and oven
applications up to 1800° F. (1000° C.)
The burner package includes a combustion air blower and an
air:gas ratio regulator to fire over a wide gas turndown range
at a controlled ratio.
The burner is designed for:
• efficient ratio controlled combustion
• reliable burner operation
• simple burner adjustment
• direct spark ignition
• multiple fuel capability
A wide variety of options and configurations are available due
to the modular design of the burner.
The RatioMatic Burner
6
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Safety
INTRODUCTION
SAFETY
2
This section is provided as a guide for the safe operation of
the RatioMatic burner system. All involved personnel should
read this section carefully before operating this system.
Danger:
The RatioMatic burners, described herein, are
designed to mix fuel with air and burn the
resulting mixture. All fuel 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.
Warning:
The burner might have HOT surfaces. Always
wear protective clothing when approaching
the burner.
Note:
This manual provides information in the use of these
burners for their specific design purpose. Do not deviate
from any instructions or application limits described herein
without written advice from Eclipse Combustion.
Read the entire manual before attempting to start this
system. If you do not understand any part of the information
contained in this manual, contact your local Eclipse
representative or Eclipse Combustion before continuing.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
7
CAPABILITIES
8
Only qualified personnel, with good mechanical aptitude and
experience with combustion equipment, should adjust, maintain,
or troubleshoot any mechanical or electrical part of this system.
OPERATOR TRAINING
The best safety precaution is an alert and trained operator.
Train new operators thoroughly and have them demonstrate an
adequate understanding of the equipment and its operation.
A regular retraining schedule should be administered to ensure
operators maintain a high degree of proficiency.
REPLACEMENT PARTS
Order replacement parts from Eclipse Combustion only. All
Eclipse Combustion approved, customer supplied valves or
switches should carry UL, FM, CSA, CGA, and/or CE approval,
where applicable.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Installation
INTRODUCTION
HANDLING AND
STORAGE
3
In this chapter you will find information and instructions
needed to install the burner and system components.
Handling
Inspect the system, being sure the components are clean and
free of damage.
Use the appropriate support and handling equipment when
lifting the burner.
Protect all components on the system from weather, damage,
dirt and moisture.
Protect the system and its components from excessive
temperatures and humidity.
Storage
When storing the system for an extended period Eclipse
recommends placing it in a cool, clean, dry room.
Keep all the system components stored in their original
packaging as long as possible.
APPROVALS OF
COMPONENTS
Limit controls and safety equipment
All limit controls and safety equipment must comply with all
applicable local codes and/or standards, which may include:
• NFPA Standard 86
• NFPA Standard 86C
• UL
• FM
• CGA
• EN 746-2
Electrical wiring
All electrical wiring must comply with all applicable local codes
and/or standards, which may include:
• NFPA Standard 70
• ANSI-C11981
• EN 746-2
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
9
Gas piping
All gas piping must comply with all applicable local codes and/
or standards, which may include:
• NFPA Standard 54
• ANSI Z223
• EN 746-2
Where to get the standards
The NFPA Standards are available from:
National Fire Protection Agency
Batterymarch Park
Quincy, MA 02269
The ANSI Standards are available from:
American National Standard Institute
1430 Broadway
New York, NY 10018
The UL Standards are available from:
333 Pfingsten Road
Northbrook, IL 60062
The FM Standards are available from:
1151 Boston-Providence Turnpike
P.O. Box 9102
Norwood, MA 02062
The CGA Standards are available from:
55 Scarsdale Road
Toronto, Ontario
Canada M3B 2R3
Information on the EN standards, and where to get the
standards is available from:
Comité Européen de Normalisation
Strassartstraat 36
B-1050 Brussels
Comité Européen de Normalisation Electronique
Strassartstraat 36
B-1050 Brussels
10
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
PRE-INSTALLATION
CHECKLIST
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.
If there are corrosive fumes or materials in the surrounding air,
find an uncontaminated source to supply air to the burner.
Exhaust
Do not allow exhaust gases to accumulate in the work area.
Provide a means for exhausting these gases from the building.
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 electrical power
• fuel type and fuel supply pressure
• adequate fresh, clean, combustion air
• humidity, altitude, and temperature of the supply air
• presence of damaging corrosive gases in the air
• prevent direct exposure to water.
BURNER
Minimum 1/4" (6mm)
space per side
Combustor
Chamber Opening
Provide an opening in the chamber wall at least ½” (12mm)
larger in diameter than the outside diameter of the combustor, or
½” (12mm) larger in height and width than the refractory block.
(1/4” - 6mm per side)
Provide an accessible pressure tap on the chamber wall to
measure the pressure inside the firing chamber. The pressure
tap should be located near the burner.
Chamber wall
“C”
Mounting Pattern
Attach four mounting bolts to the chamber wall. Position these
bolts to match the clearance holes (C) on the burner mounting
flange. Refer to the appropriate RatioMatic data sheet.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
11
INSTALLATION
(CONTINUED)
4
NOZZLE
POSITION
45 Minimum
Chamber
insulation
2
Chamber Wall
Chamber Wall
Make sure the chamber wall o is strong enough to
support the weight of the burner q. If necessary,
reinforce the mounting area.
If the chamber insulation extends beyond the nozzle
position of the burner, taper the insulation around the
combustor at a minimum 45° angle. Refer to data sheets
to determine the position of the nozzle relative to the
chamber wall.
Burner Mounting
Mount burner to chamber wall using four (4) customer
supplied nuts and lock washers.
1
Both Alloy and Silicon Carbide (SiC) Combustor
1. Be sure gasket n is installed between burner q and
chamber wall o.
2. Pack fiber insulation around the combustor to a depth not
beyond the nozzle position, as illustrated.
NOZZLE
POSITION
4
Fiber insulation
Chamber
insulation
2
Alloy Combustor
Caution:
Placing insulation around the combustor beyond the burner
nozzle position will decrease combustor life.
3. No gasket is supplied or required between burner and
combustor.
1
Silicon Carbide (SiC) Combustor only
4
5
NOZZLE
POSITION
Caution:
SiC combustor 5 is fragile. Handle with care.
Fiber insulation
3
6
2
Chamber
insulation
Silicon Carbide (SiC)
Combustor
12
If the SiC combustor is not already attached to the burner,
be sure gasket p is installed between the SiC combustor r
and flange s. Tighten the screws which hold the flange s to
the burner 4 evenly. Do not over tighten.
Caution:
When replacing SiC combustor:
• be sure gasket p is installed
• tighten screws evenly
• do not use excessive force
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
7
11
1
NOZZLE
POSITION
4
Refractory Block
1. Be sure the gasket n is installed between the burner q
and the block holder t.
2. Be sure the gasket u is installed between the block holder
t and the chamber wall o.
3. Support the weight of the refractory block v with hard
brick work w. Fill space around the block v with soft
gasket material 11 .
8
2
9
10
Refractory Block
GAS PIPING
Burner Piping
The burner is factory assembled and shipped as ordered.
Note:
If it is necessary to redirect piping, be sure the:
• ratio regulator spring column n is pointing up.
• arrow on the ratio regulator points in the direction of
gas flow.
• integral fuel orifice and o-rings o are re-installed.
• same straight run of pipe p remains between the ratio
regulator and the burner .
Burner Piping
Supply Piping
Inlet pressure to the ratio regulator must stay within specified
limits. Refer to the appropriate RatioMatic data sheet.
• Locate the valve train close to the burner. The gas must
reach the burner during the fixed trial for ignition.
• Sufficiently size shut off valves in the valve train.
• Make sure piping is large enough.
• Minimize piping elbows.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
13
Main gas
shut-off
valve train
1
NC
2
NC
4
5
3
Bypass Start Gas Piping
Bracket
Pipe
Union
Bypass Start Gas Piping (optional)
Install the piping as shown in the schematics referred to in
Chapter 3 of the RatioMatic Design Guide No. 110 using the
following guidelines.
• Locate the start gas solenoids 1 close to the burner.
The gas must reach the burner during the trial for
ignition period.
• Minimize piping elbows.
• Install an adjustable limiting orifice (ALO) 2 for start gas
adjustment. Refer to Bulletin 728 and 730 for further
information.
• Include a straight run of pipe at least 8 inches long 3 before
(upstream from) the start gas orifice 5 (optional) and at least
4 inches long 4 after (downstream from) the start gas orifice.
Pipe Connections
• Installation of a pipe union in the gas line is recommended
to simplify burner removal.
• Use of flexible pipe is optional.
Note:
Flexible pipe causes higher pressure drops than standard
pipe. Consider this when sizing your gas lines.
Pipe Connections
Piping Support
Use brackets or hangers to support the gas piping. If you have
questions, consult your local gas company.
BV
Shaft
Set
Screws
Motor
Shaft
Control Motor
Install a control motor to modulate the air butterfly valve if not
previously installed on the burner.
Control
Motor
Washers
Coupling
Note:
Be sure the control motor shaft and air butterfly valve shaft
are aligned properly. If using an Eclipse Actuator Mounting
Parts Kit, the supplied washers may be used as shims
(stacked 0, 1, or 2 high) to ensure proper alignment.
Additionally, a flexible coupling can be used to handle
minor misalignment.
Control Motor
14
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
CHECK LIST AFTER
INSTALLATION
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 the components contained in the flame
monitoring and control system are properly installed. This
includes verifying that:
• all the switches are installed in the correct locations.
• all wiring, pressure, and impulse lines are properly
connected.
3. Be sure all components of the spark ignition system are
installed and functioning properly.
4. Be sure the blower rotates in the proper direction. If the
rotation is incorrect, have a qualified electrician rewire the
blower to rotate in the proper direction.
5. Be sure all valves are installed in the proper location and
correctly oriented relative to the flow direction.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
15
Adjustment, Start &
Stop
INTRODUCTION
4
In this chapter, you will find instructions on how to adjust,
start, and stop the burner system. Become familiar with
burner control methods before attempting to make
adjustments..
Danger:
The RatioMatic burners, described herein, are
designed to mix fuel with air and burn the
resulting mixture. All fuel 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.
ADJUSTMENT
Adjustment steps:
1. Reset the system
2. Set low fire air
3. Ignite the burner
4. Set low fire gas
5. Verify settings
Step 1: Reset the system
Reset procedure:
1. Set the low gas pressure switch to 20% below the “Main
gas inlet pressure” range as specified in the appropriate
data sheet.
2. Set the high gas pressure switch to 20% above the “Main
gas inlet pressure” range as specified in the appropriate
data sheet.
3. Close all the burner gas valves, manual and automatic.
4. Try to ignite the burner; be sure the flame monitoring
system indicates a flame failure.
16
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Step 1: Reset system
(continued)
5. Activate the pressure switches and other limit interlocks.
Be sure the switches fail as intended in the event of a
power failure.
Danger:
If simulated limits or simulated flame failures do
not shut down the fuel system within the
required failure response time, immediately
correct the problem before proceeding.
6. If the burner is firing into a duct or chamber with a
circulating fan, start the fan to produce a full process air
flow past the burner.
7. Adjust main gas inlet pressure to the ratio regulator within
the range specified in the appropriate data sheet.
Warning:
Gas inlet pressures must stay within the
specified range. Pressure above the specified
range can damage the ratio regulator.
back
Warning:
Pressure below the specified range can impair
the ability of the ratio regulator to control the
gas flow.
Operating the system outside the specified
range can cause excess fuel consumption and
the possible accumulation of unburned fuel in
the chamber.
In extreme cases, this accumulation of unburned
fuel may cause fires or explosions.
8. Verify that the actuator opens the air BV towards the back
of the burner as shown. If it doesn’t, refer to the
actuator’s literature for instructions on how to
reverse the direction.
Closed
Open
Open in this
direction only
Air BV
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
17
Step2: Set low fire air
To Chamber
Tap C
Low fire air adjustment procedure:
1. Start combustion air blower.
2. Drive control motor to low fire position.
3. Measure air differential pressure between tap (C ) and
combustion chamber.
Note:
The pressure tap is in the open position when the screw
inside the tap is unscrewed approximately 1/2 turn. Do not
remove screw. Be sure to tighten pressure tap screw
clockwise to the closed position after pressure
measurements have been taken.
4. Set low fire air.
a. Loosen the set screw n on burner side of coupling o.
Air Differential Pressure
Note:
There is a slot in the end of the BV shaft that is parallel to
the air damper. This slot is used for visual indication of the
BV position. The BV is closed when the shaft slot is
perpendicular to the direction of air flow through the BV.
b. Rotate air BV shaft to fully closed position. (Holes in
BV damper will supply low fire air.)
1
2
Air BV Adjustment
Note
When firing into a positive chamber pressure, rotate the air
BV from closed position in the direction of actuator travel to
obtain a minimum 0.2” w.c. (0,5 mbar) air differential
pressure.
c. Hold BV shaft firmly in place and tighten set screw 1 .
Note:
High fire air adjustment is not required if burner is firing
into a neutral pressure chamber and a 90° travel control
motor is used.
It may be necessary to limit control motor stroke to less
than 90° if firing into a large positive or negative chamber.
Contact your Eclipse Combustion representative for further
information.
BV shaft shown in
closed position
Air BV Shaft
18
5. Verify high fire air
a. Drive control motor to high fire, full open.
b. Compare the high fire air differential pressure between
tap (C) and the combustion chamber to the appropriate
data sheet chart “Air ∆P vs. Air Flow.” If high fire air is
insufficient, refer to Section 5, Troubleshooting and
Maintenance, in this document.
6. Return the control motor to the low fire position.
7. Close the pressure taps.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Step3: Ignite the burner
Ignition procedure:
Warning:
This procedure is written with the assumption the burner has a flame monitoring
control system installed and operating. A proper purge cycle must be part of the
system and purge timing should not be bypassed.
Determine system layout and use the applicable ignition procedure.
Low fire start without high turndown option.
Procedure “A”, page 20
Low fire start with high turndown option.
Procedure “B”, page 21
Ratio regulator
with bypass
adjusting screw
Main gas
shut-off
valve train
Main gas
shut-off
valve train
Note:
The ratio regulator is factory set. Use Procedure
“A” only if burner does not ignite or requires
further adjustment.
Bypass start gas without fuel orifice meter
Procedure “C”, page 22
Note:
The RatioMatic burner with high turndown
option includes a ratio regulator with internal
bypass adjustment.
Bypass start gas with fuel orifice meter
Procedure “D”, page 23
Main gas
shut-off
valvetrain
NC
NC
Main gas
shut-off
valve train
NC
NC
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
19
Step3: Ignite the burner
Procedure A:
Low fire start without high
turndown option.
Low fire start without high turndown option:
Main gas
shut-off
valve train
CW for
more gas
Bias
Adjusting
Screw
Ratio Regulator
1. Drive control motor to low fire.
2. Be sure combustion air blower is running.
3. Verify bias adjusting screw 1 on ratio-regulator spring
column is six full clockwise turns (360° x 6) down from the
top (initial setting).
4. Open main gas manual shut off valves.
5. Set system control to stay at low fire during and after
ignition sequence.
6. Attempt to ignite burner.
7. If burner does not ignite:
a. Attempt to ignite burner again to purge air from the
gas piping.
b. If burner still does not ignite, turn bias adjusting screw
1 a half turn clockwise to increase gas flow.
c. Attempt to ignite burner.
d. Repeat steps b and c until burner ignites. If necessary,
refer to Chapter 5 for troubleshooting tips.
8. Flame signal strength:
Adjust gas flow with bias adjusting screw 1 for lowest gas
flow that maintains a stable flame signal:
• clockwise, for more fuel
• counterclockwise, for less fuel.
Note:
If viewing the flame, it should be blue with flashes of yellow.
The flame should be completely within the combustion tube.
When firing propane or butane, a proper low fire flame may
have sustained flashes of yellow.
9. Verify low fire flame:
a. Shut off gas. When chamber temperature is below 250°F
(121°C), shut off combustion air blower.
b. Restart combustion air blower and ignite burner.
c . Verify repeatability of ignition and low fire flame
signal.
20
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Step3: Ignite the burner
Procedure B:
Low fire start with high
turndown option.
Low fire start with high turndown option:
Ratio regulator
with bypass
adjusting screw
Main gas
shut-off
valve train
1.
2.
3.
CW for
more gas
Bias
1 adjusting
screw
CCW for
more gas
2
Internal bypass
adjusting screw
Ratio Regulator
(with internal bypass
adjusting screw)
Drive control motor to low fire.
Be sure combustion air blower is running.
Verify bias adjusting screw 1 on ratio-regulator spring column is
six full clockwise turns (360° x 6) down from top (initial setting).
4. Open main gas manual shut off valves.
5. Close internal bypass adjusting screw 2 by turning it
clockwise to closed position.
6. Set system control to stay at low fire during and after ignition
sequence.
7. Attempt to ignite burner.
8. If burner does not ignite:
a. Attempt to ignite burner again to purge air from the gas
piping.
b. If burner still does not ignite, turn bias adjusting screw 1 a
half turn clockwise to increase gas flow.
c. Attempt to ignite burner.
d. Repeat steps b and c until burner ignites. If necessary, refer
to Chapter 5 for troubleshooting tips.
9. After burner ignites, slowly decrease gas flow with bias adjusting
screw 1. Decrease gas flow until the flame signal becomes
erratic. (Refer to flame monitoring relay literature for a
description of an erratic flame signal.)
10. If burner has gone out:
Repeat ignition sequence. Turn internal bypass adjusting screw 2
a half turn counterclockwise to increase gas flow at each attempt
until burner lights.
11. Flame signal strength:
Adjust gas flow with internal bypass adjusting screw 2 for lowest
gas flow that maintains a stable flame signal:
• counterclockwise, for more fuel
• clockwise, for less fuel.
Note:
If viewing the flame, it should be blue with flashes of yellow. The
flame should be completely within the combustion tube. When
firing propane or butane, a proper low fire flame may have
sustained flashes of yellow.
12. Verify low fire flame:
a. Shut off gas. When chamber temperature is below 250°F
(121°C), shut off combustion air blower.
b. Restart combustion air blower and ignite burner.
c. Verify repeatability of ignition and low fire flame signal.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
21
Step3: Ignite the burner
Procedure C:
Bypass start gas without fuel
orifice meter.
Bypass start gas without fuel orifice meter:
3
Main gas
shut-off
valvetrain
2
NC
NC
1
1.
2.
3.
4.
5.
6.
ALO 3
Adjusting
Screw
CCW for
more gas
Cap
Adjustable Limiting Orifice
(ALO)
Drive control motor to low fire.
Be sure combustion air blower is running.
Be sure main gas manual shut off valves are closed.
Open manual shut off valve 1 in the bypass.
Set the system to operate on bypass gas only.
Attempt to ignite burner by energizing spark and bypass
gas solenoid valves 2.
7. If burner does not ignite:
a. Attempt to ignite burner again to purge air from the
gas piping.
b. If burner still does not ignite, turn ALO adjusting
screw 3 a half turn counterclockwise to increase gas
flow.
c. Attempt to ignite burner.
d. Repeat steps b and c until burner ignites. If necessary,
refer to Chapter 5 for troubleshooting tips.
8. Flame signal strength:
Adjust bypass gas flow with ALO adjusting screw 3 for
lowest gas flow that maintains a stable flame signal:
• counterclockwise, for more fuel
• clockwise, for less fuel.
Note:
If viewing the flame, it should be blue with flashes of yellow.
The flame should be completely within the combustion tube.
When firing propane or butane, a proper low fire flame may
have sustained flashes of yellow.
9. Verify bypass flame:
a. Shut off gas. When chamber temperature is below
250°F (121°C), shut off combustion air blower.
b. Restart combustion air blower and ignite burner.
c. Verify repeatability of ignition and low fire flame signal.
22
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Step3: Ignite the burner
Procedure D:
Bypass start gas with fuel orifice
meter
Bypass start gas with fuel orifice meter:
Main gas
shut-off
valve train
3
1.
2.
3.
4.
5.
6.
7.
8.
9.
Adjustable Limiting Orifice
(ALO)
NC
2
NC
4
1
Drive control motor to low fire.
Be sure combustion air blower is running.
Be sure main gas manual shut off valves are closed.
Prepare to measure bypass gas flow at the fuel orifice
meter 4.
Open manual shut off valve 1 in the bypass.
Set the system to operate on bypass gas only.
Attempt to ignite burner by energizing spark and bypass
gas solenoid valves 2.
If burner does not ignite:
a. Attempt to ignite burner again to purge air from the
gas piping.
b. If burner still does not ignite, turn ALO adjusting screw
3 a half turn counterclockwise to increase gas flow.
c. Attempt to ignite burner.
d. Repeat steps b and c until burner ignites. If necessary,
refer to Chapter 5 for troubleshooting tips.
Adjust bypass gas flow with ALO adjusting screw 3 to
achieve the low fire gas flow indicated on data sheet.
Refer to the fuel orifice meter literature for instructions
on flow measurement.
Note:
When firing into negative or fluctuating chamber pressures,
a higher bypass gas flow may be necessary.
Note:
If viewing the flame, it should be blue with flashes of yellow.
The flame should be completely within the combustion tube.
When firing propane or butane, a proper low fire flame may
have sustained flashes of yellow.
10. Verify the bypass gas flame:
a. Shut off gas. When chamber temperature is below
250°F (121°C), shut off combustion air blower.
b. Restart combustion air blower and ignite burner.
c. Verify repeatability of ignition and low fire flame signal.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
23
Step 4: Set low fire gas
(Only required if bypass start
is used.)
Set low fire gas procedure:
Warning:
This procedure is written with the assumption
the burner has a flame monitoring control
system installed and operating. A proper purge
cycle must be part of the system control and
purge timing should not be bypassed.
This step is only necessary when bypass start gas is used.
Determine the piping method (low fire or bypass) and ratio
regulator installed (standard or high turndown), and proceed
with the applicable procedure:
CW for
more gas
Bias
Adjusting
Screw
Bypass start gas with standard turndown ratio regulator:
1. Verify bias adjusting screw 1 on ratio regulator spring
column is six full clockwise turns (360° x 6) down from the
top (initial setting).
2. Open all manual gas shut off valves.
3. Set system control to stay at low fire during and after
ignition sequence.
4. Ignite the burner.
5. If burner goes out due to main gas flame failure:
Turn bias adjusting screw 1 a half turn clockwise to
increase gas flow. Repeat ignition sequence until burner
lights.
6. Flame signal strength:
Adjust gas flow with bias adjusting screw 1 for lowest gas
flow that maintains a stable flame signal:
• clockwise, for more fuel
• counterclockwise, for less fuel
Note:
If viewing the flame, it should be blue with flashes of yellow.
The flame should be completely within the combustion tube.
When firing propane or butane, a proper low fire flame may
have sustained flashes of yellow.
Ratio Regulator
24
7. Verify low fire flame .
a. Drive control motor from low fire and back. Verify
low fire and stable flame signal are repeated.
b. Turn the burner off and repeat the ignition sequence.
Verify low fire and stable flame signal are repeated.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Step4: Set low fire gas
(continued)
1
Bias
adjusting
screw
CW for
more gas
CCW for
more gas
2
Internal bypass
adjusting screw
Ratio Regulator
(with internal bypass
adjusting screw)
Bypass start gas with high turndown option:
1. Verify bias adjusting screw 1 on ratio regulator spring
column is six full clockwise turns (360° x 6) down from the
top (initial setting).
2. Open all manual shut off valves.
3. Close internal bypass adjusting screw 2 by turning it
clockwise to closed position.
4. Set system control to stay at low fire during and after
ignition sequence.
5. Ignite the burner.
6. If burner goes out due to main gas flame failure:
Turn bias adjusting screw 1 a half turn clockwise to
increase gas flow. Repeat ignition sequence until burner
lights.
7. Slowly decrease gas flow with bias adjusting screw 1.
Decrease gas flow until the flame signal becomes erratic.
(Refer to flame monitoring relay literature for a description
of an erratic flame signal.)
8. If burner has gone out:
Repeat ignition sequence. Turn internal bypass adjusting
screw 2 a half turn counterclockwise to increase gas flow
at each attempt until burner lights.
9. Flame signal strength:
Adjust gas flow with internal bypass adjusting screw 2 for
lowest gas flow that maintains a stable flame signal:
• counterclockwise, for more fuel
• clockwise, for less fuel.
Note:
If viewing the flame, it should be blue with flashes of yellow.
The flame should be completely within the combustion tube.
When firing propane or butane, a proper low fire flame may
have sustained flashes of yellow.
10. Verify low fire flame.
a. Drive the control motor from low fire and back.
Verify low fire and stable flame signal are repeated.
b. Turn the burner off and repeat the ignition sequence.
Verify low fire and stable flame signal are repeated.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
25
Step5: Verify Settings
Setting verification:
Note:
There are no high fire gas adjustments or air adjustments when
firing into a neutral chamber. However, air and gas
pressures can be used to verify the burner system is
properly adjusted.
Tap C
Chamber
Tap D
Tap B
1. With burner lit, drive control motor to high fire.
2. Wait for the chamber to reach normal operating
conditions (e.g. chamber temperature, process flows, etc.).
3. Measure high fire fuel differential pressure between tap (B)
and tap (D). Compare this to the “Fuel Orifice ∆P vs.
Input” graph on the data sheet.
4. Measure high fire air differential pressure between tap (C)
and the chamber. Compare this pressure to the “ Air ∆P vs.
Air Flow” graph on the data sheet.
5. Drive the control motor to low fire and verify low fire
flame signal and flame appearance (if viewing).
Note:
Gas pressure at low fire will be too low to measure and
verify the fuel settings.
6. Cycle burner from high to low several times to check
repeatability of settings.
7. Readjust burner if the settings do not repeat as excepted. If
necessary, refer to Chapter 5, Maintenance & Troubleshooting.
8. Record all setup data as an aid for future troubleshooting
and setup operations.
Caution:
Do not turn the combustion air blower off until the chamber
temperature is below 250°F (121°C). This will prevent hot
gases from back flowing into the burner and blower causing
damage to the burner.
9. Stop the burner.
26
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Maintenance &
Troubleshooting
INTRODUCTION
5
This chapter is divided into two sections:
• Maintenance procedures
• Troubleshooting guide
Preventive maintenance is the key to a reliable, safe and
efficient system. The core of any preventive maintenance
system is a list of periodic tasks.
MAINTENANCE
Monthly Checklist
Note:
These are guidelines only. The customer should make the
final determination on maintenance intervals and tasks to
be performed while considering the working environment.
1. Inspect the flame sensing devices for good condition and
cleanliness.
2. Check for proper air/gas pressures (Refer to the
RatioMatic Data Sheets, Series 110).
3. Test all the system alarms for proper response signals.
4. Check and clean igniter electrodes.
5. Check the air control valve for smooth, trouble free
operation and adjustment.
6. Check for the proper operation of ventilating equipment.
7. Test the interlock sequence on all safety equipment.
Manually force each interlock to intentionally fail while at
the same time noting if related equipment closes or stops
as specified by the manufacturer. Test the flame safeguard
by manually shutting off the gas to the burner.
8. Test the manual gas shut off cocks for proper operation.
9. Clean and/or replace the combustion air blower filter.
10. Inspect and clean the combustion air blower rotor.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
27
Yearly Checklist
1
4


28
Ž
1. Leak test the safety shut-off valves for tightness of closure.
2. Test the pressure switch settings by checking the switch
movements against pressure settings and comparing these
with the actual impulse pressure.
3. Visually check igniter cable and connectors.
4. Inspect impulse piping for leaks.
5. Remove, clean, and inspect all burners.
6. Remove and clean the orifice plate 4 .
7. Be sure the following components are not damaged or
distorted:
• the burner nozzle.
• the igniter.
• the flame sensors.
• the combustion tube or block.
The nozzle and combustion tube/block can be inspected
without removing the burner from the chamber wall or
entering the chamber. Perform the following:
a. Shut the burner off and manually close the main gas
shut off cocks.
b. Allow the chamber temperature to cool down to
250°F (121°C).
c. Disconnect the gas piping at a union or the gas inlet
flange 1 provided on the burner.
d. Remove the four bolts 2.
e. Remove the rear cover 3 from the burner housing 4.
f. To re-assemble, follow this sequence in the reverse
order.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
TROUBLESHOOTING
PROCEDURES
PROBLEM
Start-up sequence runs but
burner does not light.
POSSIBLE CAUSE
SOLUTION
No ignition:
• There is no power to the
ignition transformer.
No ignition:
• Open circuit between the
ignition transformer and the
igniter.
No ignition:
• The igniter needs cleaning.
No ignition:
• The igniter is not correctly
grounded to the burner.
Restore the power to the
ignition transformer.
No ignition:
• Igniter insulator is broken.
Igniter is grounding out.
Not enough gas:
• The gas pressure going into the
ratio regulator is too low.
Not enough gas:
• The impulse line to the ratio
regulator is leaking.
Not enough gas:
• The pilot adjusting valve or
bypass valve is not open far
enough.
Not enough gas:
• Start gas solenoid valve does
not open.
Not enough gas:
• Gas valve does not open.
Inspect the igniter. Replace if
broken.
Not enough gas:
• Ratio regulator is incorrectly
set.
Adjust the ratio regulator to the
proper setting.
Repair or replace the wiring to
the igniter.
Clean the igniter.
Clean the threads on the igniter
and the burner. NOTE: Do not
apply grease to the threads on
the igniter.
Check the start-up settings.
Measure the gas pressures and
adjust where necessary.
Repair any leaks.
Adjust bypass or low fire gas.
Check the solenoid valve coil
for proper operation. Replace it
if necessary.
Check the wiring to the
automatic gas shut-off valve.
Check the output from the
flame safeguard.
Open manual gas cock.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
29
PROBLEM
Start-up sequence runs but
burner does not light.
(continued)
The low fire flame is weak or
unstable.
The burner goes out when it
cycles to high fire.
30
POSSIBLE CAUSE
SOLUTION
No flame signal:
•Broken flamerod
•Dirty UV scanner lens
Inspect and clean sensor
Replace if necessary
No flame signal:
• Spark plug and flamerod reversed
Exchange spark plug/flamerod
or their wiring
Too much gas:
• Wrong or missing burner fuel
orifice.
Check RatioMatic Data Sheets,
Series 110 for fuel orifice and
the given fuel.
•
Not enough gas flowing to the
burner.
Adjust the ratio regulator to
increase the gas flow.
•
Not enough air.
Check for proper blower
rotation.
Check air filter for blockage.
Compensate for chamber by
opening the low fire air butterfly
valve position.
•
Not enough gas pressure into
the ratio regulator.
•
Loading line to the ratio
regulator is leaking.
Check the start-up settings.
Measure the gas pressures and
adjust them where necessary.
Check for valve train pressure
loss.
Repair the leak in the loading
line.
The burner is erratic and does
not respond to adjustment.
Internal damage to the burner:
• Some parts inside the burner
are loose, dirty, or burned out.
Contact your Eclipse
representative or Eclipse
Combustion for further
information.
The burner is unstable or
produces soot, smoke, or
excessive carbon monoxide.
•
The air/gas ratio is out of
adjustment.
Measure all the gas pressures
and air pressures. Compare
these pressures to the
documented initial start-up
settings and adjust them where
necessary.
The burner cannot achieve full
capacity.
•
Air filter is blocked.
Clean or replace the air filter.
•
Gas pressure going into the
ratio regulator is too low.
Adjust the gas pressure.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
PROBLEM
Cannot initiate a start
sequence.
POSSIBLE CAUSE
SOLUTION
•
Air pressure switch has not
made contact.
Check air pressure switch
adjustment.
Check air filter.
Check blower rotation.
Check outlet pressure from
blower.
•
High gas pressure switch has
activated.
•
Low gas pressure switch has
activated.
Check incoming gas pressure.
Adjust gas pressure if
necessary.
Check pressure switch setting
and operation.
•
•
Malfunction of the flame
safeguard system (e.g., shortedout flame sensor or electrical
noise in the sensor line).
No power to the control unit.
•
Main power is off.
Have a qualified electrician
troubleshoot and correct the
problem.
Be sure the main power to the
system is switched to the “on”
position.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
31
Appendix
CONVERSION
FACTORS
Metric to English.
From
To
3
Multiply By
3
cubic meter (m )
cubic foot (ft )
35.31
cubic meter/hour (m /h)
cubic foot/hour (cfh)
35.31
degrees Celsuis (ºC)
degrees Fahrenheit (ºF)
(ºC x 1.8) + 32
kilogram (kg)
pound (lb)
2.205
kilowatt (kW)
BTU/hr
3414
meter (m)
foot (ft)
3.28
millibar (mbar)
inches water column (“w.c.)
0.401
millibar (mbar)
pounds/sq in (psi)
14.5 x 10-3
millimeter (mm)
inch (in)
3.94 x 10-2
MJ/m3 (normal)
BTU/ft3 (standard)
2.491 x 10-2
kiloPascals (kPa)
millibar (mbar)
10
meter (m)
millimeter (mm)
1000
millibar (mbar)
kiloPascals (kPa)
0.1
millimeter (mm)
meter (m)
0.001
From
To
Mulitply By
BTU/hr
kilowatt (kW)
0.293 x 10-3
cubic foot (ft3)
cubic meter (m3)
2.832 x 10-2
degrees Fahrenheit (ºF)
degrees Celsius (ºC)
(ºF – 32) ÷ 1.8
foot (ft)
meter (m)
0.3048
inches (in)
millimeter (mm)
25.4
inches water column (“wc)
millibar (mbar)
2.49
pound (lb)
kilogram (kg)
0.454
pounds/sq in (psi)
millibar (mbar)
68.95
BTU/ft3 (standard)
MJ/m3 (normal)
40.14
3
Metric to Metric.
English to Metric.
32
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
KEY TO SYSTEM
SCHEMATICS
Symbol
Appearance
These are the symbols used in the schematics.
Name
Remarks
Bulletin/
Info Guide
RatioMatic
NC
Main Gas Shutoff
Valve Train
Eclipse Combustion, Inc.
strongly endorses NFPA as a
minimum
Gas Cock
Gas cocks are used to
manually shut off the gas
supply on both sides of the
main gas shut-off valve train.
710
Solenoid Valve
(normally closed)
Solenoid valves are used to
automatically shut off the gas
supply on a bypass gas system
or on small capacity burners.
760
Fuel Orifice Meter
Fuel orifice meters are used
to measure gas flow.
Adjustable Limiting
Orifice
Adjustable limiting orifices are
used for fine adjustment of
gas flow.
Pressure Regulator
A pressure regulator reduces
gas pressure to a stable,
usable pressure.
Ratio Regulator
A ratio regulator is used to
control the air/gas ratio. The
ratio regulator is a sealed unit
that adjusts the gas flow in ratio
with the air flow. To do this, it
measures the air pressure with
a pressure sensing line, the
impulse line. This impulse line
is connected between the top
of the ratio regulator and the
burner body.
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
756
910
684
742
33
KEY TO SYSTEM
SCHEMATICS (CONTINUED)
Symbol
Appearance
Name
Remarks
Pressure Taps
Impulse Line
34
Eclipse RatioMatic v3.10 - Installation Guide No. 110, 7/1/03
Bulletin/
Info Guide
Offered By:
Burnerparts.com
2011 Williamsburg Road
Richmond, Virginia 23231
Phone (804) 236-3881
Fax (804) 236-3882
www.burnerparts.com
Download PDF