Eclipse RatioMatic RM Series, RatioMatic RM1000, RatioMatic RM1250, RatioMatic RM2500, RatioMatic RM3000 Installation Manual

Installation Guide 110

12/3/2014

Eclipse RatioMatic

Burners

RM Series

Version 5

Copyright

Copyright 2010 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.

Disclaimer Notice

In accordance with the manufacturer’s policy of continual
product improvement, the product presented in this
brochure is subject to change without notice or obligation.

The material in this manual is believed adequate for the
intended use of the product. If the product is used for
purposes other than those specified herein, confirmation
of validity and suitability must be obtained. Eclipse
warrants that the product itself does not infringe upon any
United States patents. No further warranty is expressed or
implied.

Liability & Warranty

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
Technical Documentation Specialist.

It must be understood that Eclipse’s liability for its product,
whether due to breach of warranty, negligence, strict
liability, or otherwise is limited to the furnishing of
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, 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 manual, any
adjustment, or assembly procedures not recommended or
authorized in these instructions shall void the warranty.

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.

How To Get Help

If you need help, contact your local Eclipse
representative. You can also contact Eclipse at:

1665 Elmwood Rd.
Rockford, Illinois 61103 U.S.A.
Phone: [phone]
Fax: [phone]
http://www.eclipsenet.com

Please have the information on the product label available
when contacting the factory so we may better serve you.

www.eclipsenet.com

Product Name
Item #
S/N
DD MMM YYYY

This is the safety alert symbol. It is used to alert you to potential personal
injurt hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.

Indicates a hazardous situation which, if not avoided, will result in death
or serious injury.

WARNING

CAUTION

NOTICE

NOTE

2

Indicates a hazardous situation which, if not avoided, could result in
death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.

Is used to address practices not related to personal injury.

Indicates an important part of text. Read thoroughly.

Table of Contents

Introduction .............................................................................................. 4

Product Description....................................................................... 4

Audience ....................................................................................... 4

RatioMatic Documents .................................................................. 4

Purpose......................................................................................... 4

Safety ........................................................................................................ 5

Safety Warnings............................................................................ 5

Capabilities.................................................................................... 5

Operator Training .......................................................................... 5

Replacement Parts........................................................................ 5

Installation ................................................................................................ 6

Handling & Storage ....................................................................... 6

Approvals of Components............................................................. 6

Checklist Before Installation.......................................................... 7

Installing the Flame Sensor........................................................... 7

Burner Installation ......................................................................... 7

Refractory Block Curing Schedule ................................................ 9

Gas Piping..................................................................................... 9

Setting Ignitor Location (RM1000-RM3000).................................. 11

Checklist After Installation............................................................. 11

Adjustment, Start & Stop......................................................................... 12

Adjustment Procedure................................................................... 12

Step 1: Reset the System ............................................................. 12

Step 2: Set Low Fire Air ................................................................ 13

Step 3: Ignite the Burner (RM0050-RM0700 only)........................ 14

Step 4: Set Low Fire Gas (RM0050-RM0700 only)....................... 17

Step 5: Verify Settings (RM0050-RM0700 only) ........................... 18

Step 3: Ignite the Burner (RM1000-RM3000 only)........................ 19

Step 4: Set Low Fire Gas (RM1000-RM3000 only)....................... 19

Step 5: Verify Settings (RM1000-RM3000 only) ........................... 19

Maintenance & Troubleshooting ............................................................ 20

Monthly Checklist .......................................................................... 20

Yearly Checklist ............................................................................ 20

Troubleshooting ............................................................................ 21

Appendix................................................................................................... i

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

3

Introduction

Product Description

The RatioMatic is a nozzle-mix type burner designed for
direct and indirect air heating and oven applications up to
1900°F(1040°C).

The burner package includes a combustion air blower and
an air/gas ratio regulator to fire over a wide gas turndown
range with 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.

1

Figure 1.2. RatioMatic Burner (RM1000 - RM3000)

RatioMatic Documents

Installation Guide No. 110

• This document

Audience

This manual has been written for people who are already
familiar with all aspects of a nozzle-mix burner and its add­on components, also referred to as “the burner system”.

These aspects are:

• Installation

• Use

• Maintenance

The audience is expected to have previous experience
with this type of equipment.

Datasheet, Series 110

• Available for individual RM models

• Required to complete design and selection

Design Guide No. 110

• Used with Datasheet to complete installation

Related Documents

• EFE 825 (Combustion Engineering Guide)

• Eclipse Bulletins and Info Guides: 710, 732, 760,
818, 830, 832, 852, 854, 856, 610, 820, 902, 930

Purpose

The purpose of this manual is to ensure the installation
and adjustment of a safe, effective and trouble-free
combustion system.

Figure 1.1. RatioMatic Burner (RM0050 - RM0700)

4

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Safety

Important notices which help provide safe burner
operation will be found in this section. To avoid personal
injury and damage to the property or facility, the following
warnings must be observed. All involved personnel should
read this entire manual carefully before attempting to start
or operate this system. If any part of the information in this
manual is not understood, contact Eclipse before
continuing.

Safety Warnings

DANGER

■ The 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 and duct sections are likely to have
HOT surfaces. Always wear the appropriate
protective equipment when approaching the
burner.

2

NOTICE

■ This manual provides information regarding the
use of these burners for their specific design
purpose. Do not deviate from any instructions or
application limits described herein without written
approval from Eclipse.

Capabilities

Only qualified personnel, with sufficient mechanical
aptitude and experience with combustion equipment,
should adjust, maintain or troubleshoot any mechanical or
electrical part of this system. Contact Eclipse for any
needed commissioning assistance.

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. Contact Eclipse for any needed
site-specific training.

Replacement Parts

Order replacement parts from Eclipse only. All Eclipse
approved valves or switches should carry UL, FM, CSA,
CGA and/or CE approval where applicable.

■ Eclipse products are designed to minimize the use
of materials that contain crystalline silica.
Examples of these chemicals are: respirable
crystalline silica from bricks, cement or other
masonry products and respirable refractory
ceramic fibers from insulating blankets, boards, or
gaskets. Despite these efforts, dust created by
sanding, sawing, grinding, cutting and other
construction activities could release crystalline
silica. Crystalline silica is known to cause cancer,
and health risks from the exposure to these
chemicals vary depending on the frequency and
length of exposure to these chemicals. To reduce
the risk, limit exposure to these chemicals, work in
a well-ventilated area and wear approved personal
protective safety equipment for these chemicals.

5

Installation

3

In this section you will find information and instructions
needed to install the burner and system components.

Handling & Storage

Handling

• Make sure that the area is clean.

• Protect all components from weather, damage, dirt
and moisture.

• Protect the components from excessive
temperatures and humidity.

• Take care not to drop or damage components.

Storage

• Make sure the components are clean and free of
damage.

• Store the components in a cool, clean, dry room.

• After you have made sure everything is present and
in good condition, keep the components in their
original packaging as long as possible

Approval of Components

Limit Controls & Safety Equipment

All limit controls and safety equipment must comply with
all applicable local codes and/or standards and must be
listed for combustion safety by an independent testing
agency. Typical application examples include:

• American: NFPA 86 with listing marks from UL, FM,
CSA

• European: EN 746-2 with CE mark from TuV,
Gastec, Advantica

Electrical Wiring

All the electrical wiring must comply with all applicable
local codes and/or standards such as:

• NFPA Standard 70

• IEC60364

• CSA C22

• BS7671

Gas Piping

All the gas piping must comply with all applicable local
codes and/or standards such as:

• 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
www.nfpa.org

The ANSI Standards are available from:
American National Standard Institute
1430 Broadway
New York, NY 10018
www.ansi.org

The UL Standards are available from:
333 Pfingsten Road
Northbrook, IL 60062
www.ul.com

The FM Standards are available from:
1151 Boston-Providence Turnpike
PO Box 9102
Norwood, MA 02062
www.fmglobal.com/approvals

Information on the EN standards and where to get them is
available from:
Comité Européen de Normalisation

Stassartstraat 36

B-1050 Brussels
Phone: [phone]

Fax: [phone]

www.cen.eu

Comité Européen de Normalisation Electronique

Stassartstraat 36

B-1050 Brussels
Phone: [phone]

Fax: [phone]

www.cenelec.org

6

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Checklist Before Installation

Air Supply

Provide an opening in the burner room of at least one
square inch per 4000 BTU/hr (6 cm
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, or provide a sufficient air filtering system.

Exhaust

2

per 1 kW) to supply

Flame Rod

NOTE: Only specific burner sizes with alloy or silicon

carbide combustors can use a flamerod (see specific
burner datasheets).

For detailed information on how to install and connect a
flamerod, refer to Bulletin/Info guide 832.

Installing the Spark Plug

Install the spark plug into the opening in the rear cover.

Do not allow exhaust fumes to accumulate in the work
area. Provide some positive means for exhausting from
the furnace and the building.

Access

Make sure the burner is installed in such a way to allow
easy access for inspection and maintenance.

Environment

Make sure the local environment matches the original
operating specifications. Check the following items:

• Voltage, frequency and stability of the electrical
power

• Fuel type and supply pressure of the fuel

• Availability of enough fresh, clean combustion air

• Humidity, altitude and temperature of air

• Presence of damaging corrosive gases in the air

• Prevent direct exposure to water

Installing the Flame Sensor

1. Install the flame sensor into the 1/2" NPT opening in the
rear cover.

NOTE: Do not apply any grease to the threads of the
spark plug or bad grounding of the spark plug may occur,
resulting in a weak spark.

NOTICE

■ Adjustments may vary from Eclipse published
values if the flame controls other than those
recommended in the Design Guide are used.
Consult with the engineer who specified the
alternate control for limitations.

Burner Installation

Chamber Opening

Minimum 1/4" (6mm)

space per side

Combustor

2. Make sure the flame sensor of a burner is connected to
the electrical circuit for that burner.

DANGER

■ If you connect the flame sensor of a burner to the

electrical circuit of the wrong burner, you can
cause fires and explosions.

There are two different types of flame sensors; UV
scanner and flamerod.

UV Scanner

The UV Scanner must be compatible to the flame
monitoring control that is used. Refer to the manual of
your selected control for proper selection of the scanner.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Chamber Wall

Figure 3.1.

Provide an opening in the chamber wall at least 1/2"
(12mm) larger in diameter than the outside diameter of the
combustor, or 1/2" (12mm) larger in height and width than
the square 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.

Mounting Pattern

Attach 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
datasheet.

7

“C”

“C”

1

4

RM0050 - RM0700

RM1000 - RM3000

Figure 3.2. Mounting Pattern

Chamber Wall

Make sure the chamber wall  is strong enough to
support the weight of the burner . 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 Datasheets
to determine the position of the nozzle relative to the
chamber wall.

4

45° Minimum

NOZZLE

POSITION

Chamber

2

Insulation

NOZZLE

POSITION

Fiber insulation

Chamber

2

insulation

Figure 3.4. 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 the burner

and combustor.

Silicon Carbide (SiC) Combustor Only

CAUTION

■ SiC combustor  is fragile. Handle with care.

Figure 3.3. Chamber Wall

Burner Mounting

Mount burner to chamber wall using four (4 or 8) customer
supplied nuts and lock washers, as required.

Both Alloy and Silicon Carbide (SiC) Combustor

1. Be sure gasket  is installed between burner  and
chamber wall .

2. Pack fiber insulation around the combustor to a depth
not beyond the nozzle position, as illustrated.

If the SiC combustor is not already attached to the burner,
be sure gasket  is installed between the SiC combustor

 and flange . Tighten the screws which hold the flange
 to the burner  evenly. Do not over tighten.

1

4

3

6

2

5

POSITION

Fiber insulation

Chamber
insulation

Figure 3.5. Silicon Carbide (SiC) Combustor

CAUTION

■ When replacing SiC combustor be sure gasket 

is installed, tighten screws evenly, and do not use
excessive force.

8

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Refractory Block

1. Ensure gasket  is installed between burner  and
block holder .

2. Ensure gasket  is installed between block holder 
and chamber wall .

• Cool or raise the operating temperature at a rate of
100°F (55°C) per hour.

NOTE: The correct insulation of burner combustion blocks
in furnaces results in longer block life and adds value by
reducing downtime and maintenance.

Block Holder Temperature

3. Support the weight of refractory block  with hard brick
work anchored to the furnace shell . Fill the 1/2"
space between block  and the three unsupported
sides with soft gasket material .

7

1

4

NOZZLE

8

2

9

3

POSITION

10

Figure 3.6. Refractory Block

Large Refractory Blocks

On sizes RM0300 through RM3000; the block must be
tightly surrounded by a collar made of brick, plastic
refractory, or a castable refractory of at least 4" (10 cm)
minimum thickness on all sides of the block. If the collar is
cast around the block, a thin plastic film (i.e. Saran Wrap
or Glad Wrap®) should be wrapped around the block to
keep moisture from leaching into it. The collar should be
anchored to the furnace shell with suitable anchors and
must be constructed to rest on a surface capable of
supporting its weight, such as a hearth or a solid refractory
or brick wall. For furnaces that are unable to support the
weight of the refractory block, a stainless steel shelf can be
welded to the shell to support the collar.

Excessive block holder temperatures can cause
problems. Overheating can be reduced by carefully
sealing the burner blocks in the wall to prevent the
leakage of hot gases back to the furnace shell.

In high temperature (>1,400°F, 760°C) fiber-wall furnace
installations, the length of the metallic wrapper should
extend no farther than the point in the wall where the
interface temperature is higher than 1800°F (760°C).

Vertical Down Firing Blocks (Figure 3.6)

1. Down firing blocks may be suspended by customer
supplied hangers attached to the burner body mounting
bolts.

2. Hangers should be attached to structural support.

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  is pointing up.

• arrow on the ratio regulator points in the direction of
gas flow.

®

• integral fuel orifice and o-rings  are re-installed in
the same orientation with respect to the fuel flow.

• same straight run of pipe  remains between the
ratio regulator and the burner.

Refractory Block Curing Schedule

The refractory block was cured at the factory up to a
temperature of 650°F (345°C). Final curing should be
done after installation.
The recommended curing schedule is:

• Ambient to 600°F (315°C) at 100°F (55°C) per hour.

• 600 °F (315°C) to 1000°F (540°C) at 25°F (14°C) per
hour.

• Hold the refractory block at 1000°F (540°C) for 12
hours.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014







Figure 3.7. Burner Piping

9

Supply Piping

Pilot Valve Trains (RM1000-RM3000)

Inlet pressure to the ratio regulator must stay within
specified limits. Refer to the appropriate RatioMatic
datasheet.

• Locate the valve train close to the burner. The gas
must reach the burner during the fixed trial for
ignition.

• Appropriately size shut off valves in the valve train.

• Make sure piping is large enough to accommodate
flow required to meet burner input.

• Minimize piping elbows.

• If a reducing nipple is necessary, install it at the inlet
to the burner proportionator. Do not use a reducing
bushing in the proportionator inlet.

Bypass Start Gas Piping (Optional for RM0050­RM0700 Only)

Install the piping as shown in the schematics using the
following guidelines:

• Locate the bypass start gas solenoids  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)  for start
gas adjustment. Refer to Bulletin 728 and 730 for
further information.

• Include a straight run of pipe at least 8" (192mm)
long  before (upstream from) the start gas orifice
 (optional) and at least 4" (96mm) long  after
(downstream from) the start gas orifice.

The pilot gas valve train should be connected as close as
possible to the pilot adjusting cock.

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.

Bracket

Pipe Union

Figure 3.9. Piping Connections

Piping Support

Use brackets or hangers to support the gas piping. If you
have questions, consult your local gas company.

Main gas

shut-off



NC



Figure 3.8. Bypass Start Gas Piping

valve train

NC







NOTICE

■ Please verify that piping complies with all
applicable codes and/or standards.

Packaged Blower Motor Support (RM1000 ­RM3000)

Install a control motor to modulate the air butterfly valve if
not previously installed on the burner.

For RatioMatic models RM1000 through RM3000, the
packaged blower motor requires additional support, which
must be supplied by the customer.

NOTE: Be sure the control motor shaft and air butterfly
valve shaft are aligned properly. In some cases 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.

10

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Motor

BV

Shaft

Shaft

Set

Screws

Control

Motor

Coupling

Figure 3.10. Control Motor Mounting

Checklist 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.

Setting Ignitor Location (RM1000-RM3000)

For RatioMatic models RM1000 through RM3000, set the
ignitor location using the self-tightening compression
fitting. The distance required is shown in Figure 3.11.

A

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.

Figure 3.11. Spark Rod Distance

RM Model

Dimension A,

mm (inches)

RM1000 82 (3.2)

RM1250 82 (3.2)

RM1500 95 (3.7)

RM2000 95 (3.7)

RM2500 95 (3.7)

RM3000 95 (3.7)

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

11

Adjustment, Start &
Stop

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 features. This can cause
fires and explosions.

■ Never try to light a burner if it shows signs of
damage or malfunction.

Adjustment Procedure

If you are adjusting the burner system for the first time,
then you must follow these steps:

Step 1: Reset the System

1. Set the low gas pressure switch to 20% below the

“Main Gas Inlet Pressure” range as specified in the
appropriate datasheet.

2. Set the high gas pressure switch to 20% above the

“Main Gas Inlet Pressure” range as specified in the
appropriate datasheet.

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.

5. Activate the pressure switches and other limit

interlocks. Be sure the switches fail as intended in the
event of a power failure.

DANGER

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
datasheet.

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.

■ 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 in Figure 4.1. If it doesn’t,
refer to the actuator’s literature for instructions on how
to reverse the direction.

Back

Closed

Open in this

direction only

■ If simulated limits or simulated flame failure do not
shut down the fuel system within the required
failure response time, immediately correct the
problem before proceeding.

12

Open

Figure 4.1. Air Butterfly Valve

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Step 2: Set Low Fire Air

1. Start combustion air blower.

2. Drive control motor to low fire position.

3. Measure air differential pressure between tap “C” and
combustion chamber. See the appropriate series 110,
datasheet.

To Chamber

When firing into a positive chamber pressure,
rotate the air butterfly valve from the closed position
in the direction of actuator travel to obtain a
minimum

0.3" w.c. (0,8 mbar) air differential pressure.

d. For air control actuators that have a coupling with

set screws, as shown in Figure 4.3, hold the
butterfly valve firmly in place and tighten the set
screw .

For air control actuators that have a keyed or
pinned coupling, as shown in Figure 4.4, hold the
butterfly valve firmly in place and re-engage the
cam’s low or off starting position.

• For T500 series Trilogy Actuators, see Instruction
Manual 902 or Quick Guide 902.

e. High fire air adjustment is not required if the 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 negative chamber. Contact Eclipse for
further information.

Figure 4.2.

NOTE (RM0050-RM0700): 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. For air control actuators that have a coupling with

set screws, as shown in Figure 4.3, loosen the set
screw  on the burner side of the coupling .

For air controlled actuators that have a keyed or
pinned coupling, as shown in Figure 4.4, please
refer to the cam adjustment section of the
actuator’s installation literature for instructions on
releasing the cam’s low or off start position.

• For T500 series Trilogy Actuators, see Instruction
Manual 902 or Quick Guide 902.

b. There is a slot in the end of the butterfly valve shaft

that is parallel to the air damper. This slot is used
for visual indication of the butterfly valve position.
The butterfly valve is closed when the shaft slot is
perpendicular to the direction of air flow through
the butterfly valve. See Figure 4.5

c. Rotate the air butterfly valve shaft to a fully closed

position. (Holes in the butterfly valve will supply
low fire air.)

Figure 4.3. Actuator with Flexible Coupling

Figure 4.4. Actuator with Keyed Coupling

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 approximate datasheet chart “Air p vs. Input”.
If high fire air is insufficient, refer to section 5,
“Troubleshooting & Maintenance”, in this
document.

6. Return the control motor to the low fire position.

7. Close the pressure taps.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

13

BV shaft shown in

closed position

Figure 4.5. Air Butterfly Valve Shaft

NOTE: Steps 3-5 RM0050-RM0700 Only (see page 20 for

RM1000-RM3000)

Step 3: Ignite the Burner (RM0050-RM0700
only)

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”.

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”.

Low fire start with high turndown option Procedure “B”.

Ratio regulator

with bypass

adjusting screw

Main gas

shut-off

valve train

NOTE: The RatioMatic burner with high turn down option
includes a ratio regulator with internal bypass adjustment.

Bypass start gas with fuel orifice meter Procedure “D”.

Main gas

shut-o

valve train

NC

NC

14

Main gas

shut-o

valve train

NC

NC

Figure 4.6.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Procedure A: Low fire start without high turndown
option

Main gas

shut-off

valve train

Figure 4.7. Procedure A

1. Drive control motor to low fire.

2. Be sure combustion air blower is running.

3. Verify bias adjusting screw  on ratio-regulator spring
column is six full clockwise turns (360° x 6) down from
the top (initial setting).

8. Flame signal strength: Adjust gas flow with bias
adjusting screw  for lowest gas flow that maintains
a stable flame signal:

• clockwise, for more fuel

• counterclockwise, for less fuel

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.

Procedure B: Low fire start with high turndown option

Ratio regulator

with bypass

adjusting screw

Main gas

shut-off

valve train

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Figure 4.8. Ratio Regulator

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  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.

Figure 4.9. Procedure B

NOTE: The RatioMatic burner with high turndown option

includes a ratio regulator with internal bypass adjustment.

1. Drive control motor to low fire.

2. Be sure combustion air blower is running.

3. Verify bias adjusting screw  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.

CW for

more gas

1

Bias

adjusting

screw

CCW for

more gas

2

Internal bypass

adjusting screw

Figure 4.10. Ratio Regulator with Internal

Bypass Adjusting Screw

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

15

5. Close internal bypass adjusting screw  by turning it

A

clockwise to closed position.

6. Set system control to stay at low fire during and after

1. Drive control motor to low fire.

2. Be sure combustion air blower is running.

3. Be sure main gas manual shut off valves are closed.

ignition sequence.

4. Open main gas manual shut off valve  in the bypass.

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  a half turn clockwise to increase gas flow.

c. Attempt to ignite burner.

d. Repeat steps b and c until burner ignites. If

ALO



djusting
Screw

CCW for

more gas

necessary, refer to Chapter 5 for troubleshooting
tips.

9. After burner ignites, slowly decrease gas flow with

Cap

bias adjusting screw . 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  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  for lowest gas flow that
maintains a stable flame signal:

• clockwise, for more fuel

• counterclockwise, for less fuel

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.

Procedure C: Bypass start gas without fuel orifice
meter

Figure 4.12. Adjusting Limiting Orifice (ALO)

5. Set the system to operate on bypass gas only.

6. Attempt to ignite burner by energizing spark and
bypass gas solenoid valves .

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  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 gas flow ALO adjusting
screw  for lowest gas flow that maintains a stable
flame signal:

• counterclockwise, for more fuel

• clockwise, for less fuel

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

Main gas

shut-o

valve train



NC

NC





signal.

Figure 4.11. Procedure C

16

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Procedure D: Bypass start gas with fuel orifice meter

Main gas

shut-o

valve train

NC

NC



1. Drive control motor to low fire.

2. Be sure combustion air blower is running.

3. Be sure main gas manual shut off valves are closed.

4. Prepare to measure bypass gas flow at the fuel orifice
meter .

5. Open manual shut off valve  in the bypass.

6. Set the system to operate on bypass gas only.

7. Attempt to ignite burner by energizing spark and
bypass gas solenoid valves .



Figure 4.13. Procedure D



NOTE: When firing into negative or fluctuating chamber
pressures, a higher bypass gas flow may be necessary.

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.

Step 4: Set Low Fire Gas (RM0050-RM0700
only)

(Only required if Bypass Start is Used)

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:

Bypass Start Gas with Standard Turndown Ratio
Regulator

Figure 4.14. Adjusting Limiting Orifice (ALO)

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 ALO adjusting

screw  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.

9. Adjust bypass gas flow with ALO adjusting screw  to
achieve the low fire gas flow indicated on datasheet.
Refer to the fuel orifice meter literature for instructions
on flow measurement.

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Figure 4.15. Ratio Regulator

1. Verify bias adjusting screw  on ratio regulator spring
column in 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.

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Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

17

5. If burner goes out due to main gas flame failure, turn

r

bias adjusting screw  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  for lowest gas flow that maintains
a stable flame signal:

• clockwise, for more fuel

• counterclockwise, for less fuel

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 flow and stable flame signal
are repeated.

Bypass Start Gas with High Turndown Option

CW for

more gas

8. If burner has gone out, repeat ignition sequence. Turn
internal bypass adjusting screw  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  for lowest gas flow that
maintains a stable flame signal:

• counterclockwise, for more fuel

• clockwise, for less fuel

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.

Step 5: Verify Air Settings (RM0050-RM0700
only)

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.

1

Bias

adjusting

screw

CCW for

more gas

2

Internal bypass

adjusting screw

Figure 4.16. Ratio Regulator with
Internal Bypass Adjusting Screw

1. Verify bias adjusting screw  on ratio regulator spring
column in 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  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  a half turn clockwise to
increase gas flow. Repeat ignition sequence until
burner lights.

7. Slowly decrease gas flow with bias adjusting screw .
Decrease gas flow until the flame signal becomes
erratic. (Refer to flame monitoring relay literature for a
description of an erratic flame signal.)

Tap C

Chambe

Tap D

Tap B

Figure 4.17. Setting Verification

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”. this to the “Fuel Orifice P vs.
Input” graph on the datasheet.

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 datasheet.

5. Drive the control motor to low fire and verify low fire
flame signal and flame appearance (if viewing).

18

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

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
expected. If necessary refer to Chapter 5,
Maintenance & Troubleshooting.

8. Record all setup data as an aid for future
troubleshooting and setup operations.

9. Stop the burner.

NOTE: Steps 3-5 RM1000-RM3000 Only (see page 15 for
RM0050-RM0700)

Step 3: Adjust Pilot (RM1000-RM3000 only)

1. Drive the control motor to low fire and set the system
to operate on pilot only

2. Turn the handle of the pilot adjusting cock open to
light the pilot.

3. Turn the internal screw (Figure 4.18)
counterclockwise to increase flow, clockwise to
decrease flow, until the pilot gives reliable ignition and
a steady flame signal with minimum pilot gas flow.

CAUTION

■ Do not turn the blower off until the chamber
temperature is below 250°F (121°C). This will
prevent hot gases from flowing back through the
burner and blower and damaging them.

Pilot

Valve

Figure 4.18. Pilot Valve Adjustment

t

Step 4: Set High Fire Gas (RM1000-RM3000
only)

1. With the pilot lit and the control motor in the low fire
position, open the main gas shut-off valve. The main
flame should light.

2. Drive the control motor to its high fire position.

3. Measure the gas differential pressure as shown in
Figure 4.19.

4. If necessary, adjust the gas flow with the butterfly
valve. The flame should be clear blue. If the flame is
yellow, see Troubleshooting, page 22.

Step 5: Adjust Low Fire Flame (RM1000­RM3000 only)

1. Return the control motor to the low fire position.

2. Check the combustion air differential pressure as
discussed in Step 2.

3. Gas pressure drop across the burner will be too low to
read reliably, but the flame should be clear blue,
entirely within the firing tube, and tight on the burner
head.

4. If necessary, adjust the ratio regulator bias screw as
shown in Figure 4.20 to obtain the proper low fire
flame. If the flame cannot be viewed, adjust the bias
screw to produce the minimum gas flow that will
generate a steady flame detector signal of sufficient
strength.

5. After adjusting the low fire flame, return to high fire
and check gas differential pressure as described in
Step 4.

Measure differential

pressure between here

and tap in chamber wall

Figure 4.19. High Fire Differential

Gas Pressure

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Figure 4.20. Ratio Regulator

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Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

19

Maintenance &
Troubleshooting

5

This section is divided into two parts. The first part
describes the maintenance procedures, and the second
part helps you to identify problems that may occur and
gives advice on how to solve these problems.

Preventative maintenance is the key to a reliable, safe
and efficient system. The following are suggested
guidelines for periodic maintenance. Burners in severe
environments or operational conditions should be
checked more frequently.

NOTE: The monthly and yearly lists are an average
interval. If your environment is dirty, then the intervals may
be shorter. Check with local authorities having jurisdiction
on their recommended maintenance schedules.

Monthly Checklist

1. Inspect flame-sensing devices for good condition and
cleanliness.

2. Check for proper air/gas pressures (refer to the
RatioMatic Datasheets, 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.

3. Visually check ignition cable and connectors.

4. Inspect impulse piping for leaks.

5. Clean and inspect all burners.

6. Remove and clean the orifice plate , see Figure 5.1.

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. See Figure 5.1. 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  provided on the burner.
d. Remove the rear cover bolts .
e. Remove the rear cover  from the burner

housing .
f. To re-assemble, follow this sequence in the

reverse order.

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.

Yearly Checklist

1. Test (leak test) safety shut-off valves for tightness of
closure.

2. Test pressure switch settings by checking switch
movements against pressure settings and comparing
these with the actual impulse pressure.

20









Figure 5.1.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014



Troubleshooting

Problem Possible Cause Solution

Start-up sequence runs but
burner does not light.

The low fire flame is weak or
unstable.

No ignition: There is no power to the ignition
transformer.

No ignition: Open circuit between the
ignition transformer and the igniter.

Restore the power to the ignition
transformer.

Repair or replace the wiring of the igniter.

No ignition: The igniter needs cleaning. Clean the igniter.

Clean the threads on the igniter and the
No ignition: The igniter is not correctly
grounded to the burner.

burner.

NOTE: Do not apply grease to the threads

on the igniter.

No ignition: Igniter insulation is broken.
Igniter is grounding out.

Inspect the igniter, replace if broken.

Not enough gas: The gas pressure going
into the ratio regulator (RM0050-RM0700)
or pilot regulator (RM1000-RM3000) is too

Check the start-up settings. Measure the

gas pressures and adjust where necessary.
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.

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 shut­off valve.

Not enough gas: Gas valve does not open.

Check the output from the flame safeguard.

Open manual gas cock.

Not enough gas: Ratio regulator is
incorrectly set.

No flame signal: Broken flamerod or dirty
UV scanner lens.

No flame signal: Spark plug and flamerod
reversed.

Too much gas: Wrong or missing burner
fuel orifice.

Not enough gas flowing to the burner.

Adjust the ratio regulator to the proper
setting.

Inspect and clean sensor. Replace if
necessary.

Exchange spark plug / flamerod or their
wiring.

Check RatioMatic Datasheets, Series 110
for fuel orifice and given fuel.

Adjust the ratio regulator to increase the
gas flow.

Check for proper blower rotation.

Not enough air.

Check air filter for blockage.

Compensate for chamber by opening the
low fire air butterfly valve position.

Flamerod is directly beneath the
combustion air inlet.

Swap the flamerod with the spark rod so
that the flamerod is 180° from the
combustion air inlet.

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

21

Problem Possible Cause Solution

The burner goes out when it
cycles to high fire.

The burner is erratic and
does not respond to
adjustment.

The burner is unstable or
produces soot, smoke, or
excessive carbon monoxide.

The burner cannot achieve
full capacity.

Cannot initiate a start
sequence.

Main flame too long and
yellow at high fire.

Main flame too short at high
fire.

Low fire (pilot) flame is too
long, soft or yellow.

Check the start-up settings.

Not enough gas pressure into the ratio
regulator.

Measure the gas pressures and adjust
them where necessary.

Check for valve train pressure loss.

Loading line to the ratio regulator is leaking. Repair the leak in the loading line.

Pilot set too lean, becoming unstable as air
increases.

Increase pressure into the pilot regulator.

Main gas adjusting valve not open enough. Increase valve opening.

Suction or back pressure in chamber
fluctuates, upsetting pilot stability.

Cross-connect pilot regulator vent to the
combustion chamber, but not via the burner
air pressure tap.

Internal damage to the burner: Some parts
inside the burner are loose, dirty, or burned

Contact Eclipse for further information.

out.

Measure all the gas pressures and air

The air/gas ratio is out of adjustment.

pressures. Compare these pressures to the
documented initial start-up settings and
adjust them where necessary.

Air filter is blocked. Clean or replace the air filter.

Gas pressure going into the ratio regulator
is too low.

Adjust the gas pressure.

Check air pressure switch adjustment.

Check air filter.

Air pressure switch has not made contact.

Check blower rotation.

Check outlet pressure from blower.

Check incoming gas pressure.

High gas pressure switch has activated.

Adjust gas pressure if necessary.

Check pressure switch setting and
operation.

Check incoming gas pressure.

Low gas pressure switch has activated.

Adjust gas pressure if necessary.

Check pressure switch setting and
operation.

Malfunction of the flame safeguard system
(e.g. shorted out flame sensor or electrical
noise in the sensor line).

No power to the control unit.

Main power is off.

Gas flame is too high.

Gas flow is too low.

Have a qualified electrician troubleshoot
and correct the problem.

Have a qualified electrician troubleshoot
and correct the problem.

Be sure the main power to the system is
switched to the “on” position.

Gas butterfly valve is open too far or main
gas regulator spring is screwed in too far.

Gas butterfly valve is closed too far, or main
gas regulator spring is screwed out too far.

Main gas proportionator spring is set for too
much flow, or pilot gas cock adjustment is

Too much gas flow.

open too far.

Insufficient air flow due to dirty blow filter or
impeller.

22

Eclipse RatioMatic Burners, RM Series, V5, Installation Guide 110, 12/3/2014

Conversion Factors

Metric to English

Metric to Metric

English to Metric

From To Multiply By

actual cubic meter/h (am³/h) actual cubic foot/h (acfh) 35.31

normal cubic meter/h (Nm³/h) standard cubic foot /h (scfh) 38.04

degrees Celsius (°C) degrees Fahrenheit (°F) (°C x 9/5) + 32

kilogram (kg) pound (lb) 2.205

kilowatt (kW) Btu/h 3415

meter (m) foot (ft) 3.281

millibar (mbar) inches water column (“w.c.) 0.402

millibar (mbar) pounds/sq in (psi)

14.5 x 10

-3

millimeter (mm) inch (in) 3.94 x 10

-2

MJ/Nm³ Btu/ft³ (standard) 26.86

From To Multiply By

kiloPascals (kPa) millibar (mbar) 10

meter (m) millimeter (mm) 1000

millibar (mbar) kiloPascals (kPa) 0.1

millimeter (mm) meter (m) 0.001

From To Multiply By

actual cubic foot/h (acfh) actual cubic meter/h (am³/h) 2.832 x 10

-2

standard cubic foot /h (scfh) normal cubic meter/h (Nm³/h) 2.629 x 10

-2

degrees Fahrenheit (°F) degrees Celsius (°C) (°F - 32) x 5/9

pound (lb) kilogram (kg) 0.454

Btu/h kilowatt (kW) 0.293 x 10

-3

foot (ft) meter (m) 0.3048

inches water column (“w.c.) millibar (mbar) 2.489

pounds/sq in (psi) millibar (mbar) 68.95

inch (in) millimeter (mm) 25.4

Btu/ft³ (standard) MJ/Nm³ 37.2 x 10-3

Appendix

Offered By:

Power Equipment Company
2

011 Williamsburg Road Richmond, Virginia 23231

Tel: [phone] Fax: [phone] www.peconet.com