User guide

ManualsBrandsMidco ManualsEquipment400B-33

SAFETY INFORMATION TERMS: The following terms are used to identify hazards, safety precautions or special notations 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 hazards that could result in personal injury or death.

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

INSTALLATION AND

SERVICE INSTRUCTIONS

ECONOMITE MODEL 400B-33

Gas Conversion Burner

The ECONOMITE 400B-33 conversion burner with intermittent spark ignited pilot is adaptable to most gas utilization equipment,

including gravity and forced circulation furnaces and boilers. It is particularly recommended for firing horizontal or downdraft equipment

since it needs no draft to maintain a pilot. Power burner design makes it perfectly suited for oil burner replacement, including rooftop

and industrial applications.

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 Z21.8b-1993, and National

Fuel Gas Code, ANSI Z223.1-1992, or 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 appliance to satisfactorily meet the application needs

must be made by a MIDCO distributor (or other qualified agency)

using factory specified 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/CGA1-B149.1 or 2. When the conversion burner is used

on a Forced air Central Furnace, the two yellow and black

warning labels in the literature envelope shall be attached 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

appliance. Inform the user of the hazards of

storing flammable liquids and vapors in the

vicinity of this appliance and remove such

hazards. Affix this manual adjacent to the

conversion burner.

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 is required, contact a

qualified service agency. DO NOT ATTEMPT

REPAIRS. An inadvertent service error could

result in a dangerous condition.

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.

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 fire department.

Installation and service must be

performed by a qualified installer,

service agency or the gas supplier.

PRINTED IN U.S.A.

598

8470-97

MIDCO International Inc.

4140 WEST VICTORIA STREET ¥ CHICAGO, ILLINOIS 60646 ¥ (773) 604-8700 FAX: (773) 604-4070 ¥ http://www.midco-intl.com

Summary of content (9 pages)

PAGE 1
INSTALLATION AND SERVICE INSTRUCTIONS ECONOMITE MODEL 400B-33 Gas Conversion Burner The ECONOMITE 400B-33 conversion burner with intermittent spark ignited pilot is adaptable to most gas utilization equipment, including gravity and forced circulation furnaces and boilers. It is particularly recommended for firing horizontal or downdraft equipment since it needs no draft to maintain a pilot.
PAGE 2
SPECIFICATIONS Standard burners are shipped as NATURAL gas models. A kit is available for field conversion to PROPANE gas. AIR DELIVERY (Approximate Air Delivery at Zero Draft Maximum Firing)ÉÉÉÉÉÉ.....84 SCFM1 MAXIMUM FIRING RATE2ÉÉÉÉÉÉÉÉÉÉÉ400 MBH3 MINIMUM FIRING RATE2ÉÉÉÉÉÉÉÉÉÉÉ.185 MBH3 GAS PRESSURE REQUIRED NATURALÉÉÉÉÉÉÉÉÉÉÉÉÉ5.0" to 14.0" W.C. PROPANEÉÉÉÉÉÉÉÉÉÉÉÉ.11.0" to 14.0" W.C. TUBE DIAMETERÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ.4" TUBE LENGTHÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ.
PAGE 3
III COMBUSTION CHAMBER A combustion chamber liner is normally required to protect non-heat transfer surfaces and to provide a radiant bed for rapid heat transfer to the primary surfaces of the heat exchanger. In most cases the existing combustion chamber liner formerly used for oil burner can be used, if in good condition.
PAGE 4
FIGURE 4 Location for Barometric Draft Regulators Figure 3 and 4: Copyright by the American Gas Association. Used by permission of the copyright holder. V ELECTRICAL Installation wiring and grounding to the burner must conform to local codes, or, in their absence in the United States to National Electric Code, ANSI/NFPA No. 701990, or latest edition; in Canada, to Canadian Electrical Code Part 1, CSA Standard C22.1. ■ Use copper wire not less than 14 gage for line voltage wiring.
PAGE 5
3. To purge the gas utilization equipment and chimney of any accumulated gases, turn Manual Gas Cock Knob on Combination Valve to OFF, close Pilot Manual Shut-Off Valve, turn burner power on, and set operating control to ON or thermostat to call for heat. Let the blower run long enough to accomplish four air changes, but not less than five minutes. 4.
PAGE 6
flame length has been set wide open for average conditions. Decrease the combustion air if a longer, softer flame is desired. 12. Check the operation of the burner; start and stop it several times with the thermostat or operating control. 13. With the burner running, check the operation of all limit and associated controls. 14. PERFORM THE FOLLOWING FINAL ADJUSTMENTS for combustion and flue gas temperature. Take the flue gas samples and temperature immediately ahead of the draft control. A.
PAGE 7
X MOTOR, BLOWER INTERLOCK & CENTRIFUGAL ACTUATOR NOTE: BEFORE SERVICING, mark with a scribe line or measure opening of primary air controlling shutter, so that it can be reset to its original position following servicing. ■ Cleaning of the blower wheel is usually the only service required. Need for cleaning is indicated if the character of the flame indicates a deficiency of air. Motor cooling air vents if present should also be cleaned at this time.
PAGE 8
combination valve is 14.0" W.C. maximum during standby, and 5.0" W.C. minimum for NATURAL gas (11.0" W.C. for PROPANE gas), with the main flame on, the regulator portion of the valve is defective and the entire valve must be replaced. ■ If, on a call for heat, flame ignition does not occur, refer to the TROUBLE CHART for further information. ■ If leakage through the valve occurs, as evidenced by the presence of flame on standby, the entire valve must be replaced.
PAGE 9
CONSUMER INSTRUCTIONS MAINTENANCE LIGHTING INSTRUCTIONS ■ Keep the area around the burner clear and free of combustible material, gasoline or other flammable liquids or vapors. Do not obstruct burner air openings or ventilation grilles for combustion air. ■ The motor features permanently lubricated ball bearings and requires no routing oiling maintenance. CAUTION: Check the burner flame periodically. A proper NATURAL gas flame will appear blue at the burner face with orange and yellow tips.