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Installation and Service Instructions

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Midco® International Inc.
4140 West Victoria Street
Chicago, Illinois 60646
tel 

 866.705.0514

fax 

 866.580.8700

web 

 www.midcointernational.com

e-mail   [email protected]

AVOID ERROR IN PARTS SELECTION.  When ordering use 
complete MIDCO Part Number and Description. Furnish Burner Model 
Number, Bill of Material Number and Date Code (if available) from the 
specifi cation plate found on the product
IMPORTANT:  Availability of parts as well as specifi cations are subject 
to change without notice. Please consult factory for item availability.

Quality Designed for Proven Performance

Do not store or use gasoline or other fl ammable vapors and liquids in 
the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

• 

Do not try to light any appliance.

• 

Do not touch any electrical switch; do not use any    
phone in your building.

• 

Immediately phone your gas supplier from another    
building. Follow the gas supplier’s instructions. If  

 

you cannot reach your gas supplier call the fi re  

 

department.

Installation and service must be performed by a qualifi ed installer, 
service agency or the gas supplier.

SAFETY INFORMATION TERMS:

  The following terms are used to identify hazards, safety precaution of special 

notations and have standard meanings throughout this manual. They are printed in all capital letters using a bold 
type face as shown below, and preceded by the exclamation mark symbol. When you see the safety alert symbol and 
one of the safety information terms as shown below, be aware of the hazard potential.

DANGER:

 

Identifi es the most serious hazards which will result in severe personal injury or death.

WARNING:

 

Signifi es a hazard that could result in personal injury or death.

CAUTION: 

Identifi es unsafe practices which would result in minor personal injury or product and  

 

 

property damage.

!

BURNER MODEL:  ______________________________________

BILL OF MATERIAL
NUMBER: 

______________________________________

SERIAL NUMBER #: ______________________________________

WIRING DIAGRAM:  ______________________________________

FOR SERVICE CONTACT

Name: 

_______________________________________________

Address: _______________________________________________

 

_______________________________________________

Phone:  _______________________________________________

Date of Installation: ______________________________________

Printed in USA

MADE

 in the 

USA

!

            
              

 WARNING:  If the information in these instructions

       is not followed exactly, a fi re or explosion may result,
       causing property damage, personal injury or death.

• 

In the United States, installation must conform with local codes 
or in the absence of local codes, with the National Fuel Gas 
Code, ANSI Z223.1-latest edition available from American 
National Standard Institute. Further reference should be made 
to the recommendation of your fuel supplier.

• 

  WARNING:  Additions, changes, conversions and service 
must be performed by an authorized Midco representative, 
service agency or the fuel supplier. Use only MIDCO 
specifi ed and approved parts.

• 

INSTALLER:  Inform and demonstrate to the user the correct 
operation and maintenance of the gas utilization equipment. 
Inform the user of the hazards of storing fl ammable liquids 
and vapors in the vicinity of this gas utilization equipment 
and remove such hazards. Affi  x this manual and associated 
literature to the burner or equipment.

• 

CODE COMPLIANCE IS THE SOLE RESPONSIBILITY OF 
THE INSTALLER.

• 

USER:  Retain this manual for future reference. If other than 
routine service or maintenance as described in this manual 
and associated literature is required, contact a qualifi ed service 
agency. DO NOT ATTEMPT REPAIRS. An inadvertent service 
error could result in a dangerous condition.

LNB 500 &

LNB 1000 Series

Low NOx Burners

 

 

With Chamber

319

8471 91

!

LNB 1000

Summary of Contents for LNB 1000 Series

Page 1: ... result in minor personal injury or product and property damage BURNER MODEL ______________________________________ BILL OF MATERIAL NUMBER ______________________________________ SERIAL NUMBER ______________________________________ WIRING DIAGRAM ______________________________________ FOR SERVICE CONTACT Name _______________________________________________ Address _________________________________...

Page 2: ...et the changing emission requirements required today LNB With Chamber LNB 500 LNB 1000 MIN VELOCITY 1000 FPM 1000 FPM MAX VELOCITY 3500 FPM 3500 FPM COMBUSTION AIR 125 CFM 250 CFM MIN CHAMBER INSERTION DEPTH 4 5 4 5 MAX CHAMBER INSERTION DEPTH 25 0 25 0 FIRING RATE NATURAL 2 LNB 500 LNB 1000 Push Through Pull Through Push Through Pull Through MIN MBH 3 100 125 150 225 MAX MBH 3 500 500 1000 1000 G...

Page 3: ...hamber is more than 28 a bottom profile plate may be required 3 Any component for example motor blower baffle etc should be 18 away from the chamber 4 3 o clock arrangement is preferred 5 For more information or special requirement please contact our Midco sales engineering team I Installation Continued P MV 5 ENCIRCLED SPARK IGNITION CONTROLLER P TERMINAL ON RTC BOARD SOLID WIRING AND COMPONENTS ...

Page 4: ...pens in high fire P30 Prepurging P36 Actuator closes to ignition position P38 Preignition Sparking P40 Ignition Gas valve on P44 End of safety time oP Operation modulating operation oP Present output FL Flame current Loc Lockout BLOWER MOTOR SPEED CONTROL W BL R Y BLOWER MOTOR POWER SUPPLY G R BK M 4 P74 Post purging G 6 9 4 BK BL TEMPERATURE CONTROL 0 10 VDC BL 7 BL X10 06 1 2 3 X10 05 2 1 4 5 X4...

Page 5: ...MADE in the USA Part 1 Installation 8471 91 Midco International Inc 5 Chart 1 Siemens Control Lock Codes Error Code List Siemens Control Lock Codes II Wiring Continued ...

Page 6: ...6 Midco International Inc 8471 91 MADE in the USA Part 1 Installation Chart 2 Siemens Control Display of Flame Current Siemens Control Display of Flame Current II Wiring Continued ...

Page 7: ... International Inc 8471 91 MADE in the USA Part 1 Installation __________________________________________ Chart 3 Siemens Control Sequence of Operation Siemens Control Sequence of Operation II Wiring Continued ...

Page 8: ...ner Startup section V for operating instructions III Piping Figure 4A Piping LNB 500 Standard PRE ASSEMBLED SECTION EBM RG175 2000 3633 BLOWER 8435 30 BLOWER INLET KIT 8416 22 DUNGS 3 4 RATIO GOVERNOR 8416 21 1 UNION 8493 06 3 4 QUICK ACTUATED BALL VALVE 8404 37 3 4 x 2 NIPPLE 8488 02 3 4 x 3 NIPPLE WITH ORIFICE 5246 85 3 4 x 2 NIPPLE 8488 02 3 4 SOLENOID VALVE 24 V 8402 35 3 4 x 2 NIPPLE 8488 02 ...

Page 9: ...E 600 0 MANOMETER EBM G1G170 AB05 20 BLOWER 8435 23 BLOWER INLET KIT 8416 18 DUNGS 1 RATIO REGULATOR ZERO GOVERNOR 8416 04 1 UNION 8493 06 1 x 3 NIPPLE 5246 64 1 x 2 NIPPLE 8488 52 1 SOLENOID VALVE 24 V 8402 36 1 x 2 NIPPLE 8488 52 1 T HAND MAIN MANUAL GAS BALL VALVE 8404 29 1 REGULATOR RV61 8416 33 1 SOLENOID VALVE 24 V 8402 36 1 x 4 NIPPLE WITH PRESSURE TAP 5243 46 1 x 3 NIPPLE 8488 61 FUEL GAS ...

Page 10: ...e inlet of first solenoid gas valve 27 Inlet pressure to side inlet of first solenoid gas valve at high fire should be 5 WC 28 Readjust main gas pressure regulator if required 29 Check differential gas pressure at barb fittings 30 Differential gas pressure should be 1 8 WC for high fire 31 To adjust high fire final setting the manual valve downstream of Dungs valve can be closed slightly LNB with Fenwal Co...

Page 11: ... barb fitting in order to hook up the required tubing to the differential gas pressure manometer Set temperature control below booth temperature so burner will light and stay lit at low fire or remove DCV wiring from RTC board Energize burner power switch The burner blower will be energized and start sequence will begin Once the main flame is established the burner will start at low fire The gas pressu...

Page 12: ...M blower ignition and flame sensing assembly burner chamber and burner head should be inspected Turn off the main gas manual valve and main panel disconnect to insure unit will not start Remove the flame sensor wire spark cable and wiring harness attached to the EBM blower To inspect the blower inlet loosen the union between the Ratio Regulator Zero Governor valve and blower Loosen the four 4 bolts a...

Page 13: ...ly 1 1 2 1 15 32 SIDE VIEW 13 Inside Collar 14 Figure 5 Direct Spark Ignitor Assembly FRONT VIEW NOTE Flame rod tip angled to the side FROM TIP TO TIP 5 32 0 01 GAP 6 5 4 3 2 11 10 9 8 7 12 1 Item Part Description Qty 1 Hardware 8 32 X 5 16 Socket Head Cap Screw 4 2 5246 45 Ignition Assembly Weldment Spk 1 3 8432 21 O Ring 1 2 X 11 16 X 3 32 1 4 5246 22 Ignition Flame Assembly Plate 1 5 5246 48 Ig...

Page 14: ... tag b Protected from shipping damage c Received transportation pre paid at Midco International Inc Return Goods Dept 4140 West Victoria Street Chicago Illinois 60646 6727 d Found by Midco s inspection to be defective in workmanship or materials under normal use and service e Handled in accordance with one of the two following procedures as specified by the customer making the return 1 Credit Proce...

Page 15: ... scrapped repaired or replaced as instructed by the customer Products returned to the customer will be sent shipping charges collect Call factory for information 866 705 0514 Fill out form and fax to 866 580 8700 or copy and mail to Midco International Inc 4140 West Victoria Street Chicago Illinois 60646 Date of Purchase End User Name Company Name Street Apt No City State Zip E mail Address Web Ad...

Page 16: ...inted in USA 8471 91 As an ISO 9001 certified company we proudly design manufacture and assemble our products in Chicago Illinois USA Midco International Inc 4140 West Victoria Street Chicago Illinois 60646 toll free 866 705 05148478 tel 773 604 8700 fax 866 580 8700 web www midcointernational com e mail sales midcointernational com 319 ...

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