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The 

ECONOMITE Models 400B-02

and 

400B-02P

conversion burners are adaptable to most common central gas utilization

equipment, including up-draft gravity and forced circulation furnaces and boilers. Power burner design makes it perfectly suited
for oil burner replacement. For horizontal and downdraft gas utilization equipment, 

ECONOMITE Model DS45B

conversion burn-

er with direct spark ignition is recommended.

In  the  United  States

,  installation  must  conform with local

codes  or, in the absence of local codes, with 

Installation

of Domestic  Gas  Conversion  Burners

,  

ANSI Z21.8a

-

latest edition  and  

National  Fuel Gas Code

ANSI 

Z223.1

-latest edition(s)   available   from   American   

National   Standard Institute.  Further   reference  should  

be  made  to the recommendation of your fuel supplier.

Note

: Any additions,  changes or conversions required in 

order for  the  gas  utilization  equipment to satisfactorily 
meet the application needs must be made by a MIDCO dis
tributor (or other qualified agency) using factory specified 
and approved parts.

In Canada

,  installation  must  conform with local codes or, in

the absence of local codes, with 

Installation Codes for 

Gas Burning   Appliances   and   Equipment,  CGA
Standard CAN/CGA 1-B149.1 or 2

.  When  the conver-

sion burner is used  on  Forced  Air  Central  Furnace, the
two yellow and black warning labels in the literature  enve
lope  shall be at tached in accordance with 

Installation 

Code, CGA Standard CAN /CGA 1-B149,Clause  5.4.4.4.

Further reference should be made to the recommendation
of your fuel supplier.

INSTALLER:  

Inform and demonstrate to the user

the  correct operation and maintenance of this gas
utilization equipment.  Inform  the  user of the haz-
ards of   storing    flammable   liquids  and  vapors in
the vicinity of this gas utilization equipment and
remove  such  hazards.  Affix this manual  adjacent
to the conversion burner.
CODE COMPLIANCE IS THE SOLE RESPONSIBILITY
OF THE INSTALLER. 

WARNING: If the information in

these instructions is not followed
exactly, a fire or explosion may result,
causing property damage, personal
injury or death.

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

Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.

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 call your gas 
supplier from a neighbor's 
phone. Follow the gas suppliers' 
instructions.

If you cannot reach your gas 
supplier, call the fire department.

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

SAFETY INFORMATION  TERMS

: The following terms are used to identify hazards, safety precautions or special nota-

tions and have standard meanings throughout this manual. When you see the safety alert symbol and one of the safety
information terms as shown below, be aware of the hazard potential.

DANGER: Identifies the most serious hazards which 

will

result in severe personal injury or death.

WARNING: Signifies a hazard that 

could

result in personal injury or death.

CAUTION: Identifies unsafe practices which would result in minor personal injury or product and property damage.

ANSI    Z21.17

$

CSA 2.7

CONVERSION BURNERS

Installation and Service Instructions 

M i d c o   I n t e r n a t i o n a l   I n c .

4140 West Victoria Street    Chicago, Illinois 60646
tel 773.604.8700    fax 773.604.4070    web www.midco-intl.com

201

8470-75

Printed in U.S.A.

Economite 400B-02

Conversion Burners

Summary of Contents for Economite 400B-02 Series

Page 1: ...tion equipment and remove such hazards Affix this manual adjacent to the conversion burner CODE COMPLIANCE IS THE SOLE RESPONSIBILITY OF THE INSTALLER WARNING If the information in these instructions...

Page 2: ...g provision must be made for an outside air supply near the gas utilization equipment area Install permanently open grilles sized at not less than one square inch free area per 4 000 BTU of burner inp...

Page 3: ...NG Burner cabinet must be mounted in orientation shown in figures 1 and 2 Any other mountings may cause a dangerous condition and will void burner warranty and agency approvals Non standard arrangemen...

Page 4: ...rsely affect burner operation or if flue gas spillage might introduce a hazard If such a device is used it shall be of the listed type and installed and adjusted by a qual ified service technician in...

Page 5: ...of 5 0 W C pressure 11 0 W C PROPANE to the inlet of the Combination Valve when the burner and all other gas utilization equipment are on Note If there is more than 1 0 W C differential in the inlet p...

Page 6: ...and install the spud with the correct orifice size stamped with inch diameter from the SPUD KIT bag If the required firing rate is at the minimum of a capacity range select the next lower range spud...

Page 7: ...ustment 8 Turn operating control to ON or set thermostat above room temperature Main flame should come on when the motor reaches operating speed If not refer to Trouble Chart To make a preliminary set...

Page 8: ...C for NATUR AL gas 8 0 W C for PROPANE 1 Standby gas pressure inches W C 2 The efficiency of the thermocouple and the pilotstat safety control can be determined by timing the safety shut off With the...

Page 9: ...te and electrical interlock switch so as to prevent the burner from firing if the Blower Wheel is not running at its operat ing speed When the motor is off the actuator spring forces the disk against...

Page 10: ...u 5 for the method of isolating the problem If on a call for heat the main burner fails to operate even though the pilot is burning and the motor is running failure of the electric valve operator s ma...

Page 11: ...t flame gas pressure See Section IX Venturi Casting and Pilot E Clogged pilot orifice s See Section IX Venturi Casting and Pilot F Defective ignitor ignitor wires spark rod or improper spark gap See F...

Page 12: ...ent closed too far D Dirty Blower Wheel A Electric Valve Operator s of Combination Valve is defective and entire valve must be replaced Normal low voltage Motor running 24V minimum Combination Valve e...

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