Midco RE4400DS HTD Service Manual

Installation and Service Instructions

608

8471 50

Printed in U.S.A.

Economite

RE4400DS HTD

Gas Burner

Midco®International Inc.

4140 West Victoria St. - Chicago, Illinois 60646
tel [phone] fax [phone]

web www.midcointernational.com e-mail [e-mail]

Quality Designed for Proven Performance

In the United States, Installation must conform

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

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 1B-149. 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 specified 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
flammable liquids and vapors in the vicinity of this gas
utilization equipment and remove such hazards. Affix
this manual and associated literature adjacent to the
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 and associated literature is required, contact a
qualified service agency. DO NOT ATTEMPT REPAIRS.
An inadvertent service error could result in a dangerous
condition.

FOR SERVICE CONTACT:

Name

Address

Phone

Date of Installation

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.

WARNING: If the information in these instructions

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

Burner Model

Bill of Material #

Serial Number

Wiring Diagram

AVERTISSEMENT. Assurez-vous de bien suivre

les instructions données dans cette notice pour
réduire au minimum le risque d’incendie ou
d’explosion pouvant entraîner des dommages
matériels, des blessures ou la mort.

S A F E T Y I N F O R M A T I O N T E R M S : 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: 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.



Ne pas entreposer ni utiliser d’essence ni d’autres

vapeurs ou liquides inflammables à proximité de cet

appareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucun interrupteur. Ne pas vous servir des
téléphones se trouvant dans le bâtimentoù vous êtes.

• Appelez immédiatement votre fournisseur de gaz depuis
un voisin. Suivez les instructions du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incendies.

L’installation et l’entretien doivent être assurés par un
installateur ou un service d’entretien qualifié ou par le
fournisseur de gaz.

Part 1 Installation

Specifications

The ECONOMITE Model RE 4400DS HTD (High Turn Down) burners with direct spark
ignition are adaptable to most gas utilization equipment.

AIR DELIVERY (Approximate Air Delivery at Zero Draft)

RE4400DS HTD ..... 87 SCFM

1

FIRING RATE (NATURAL )2 (Based on 0 draft over fire pressure)

MAXIMUM MBH

3

400

MINIMUM MBH

3

20

GAS SUPPLY PRESSURE REQUIRED Min Max

250 MBH ................................................... 7.0" to 14.0" W.C

350 MBH ................................................... 7.0" to 14.0" W.C

400 MBH ................................................... 7.0" to 14.0" W.C

TUBE DIAMETER ........................................................... 4"

RECOMMENDED COMBUSTION CHAMBER SIZE (AT MAX. BTU/HR)

WIDTH 10"
LENGTH 16.5"

ELECTRICAL SUPPLY

4

.....................................120/208/230 VAC...........60 Hertz

ELECTRONIC CONTROL VOLTAGE ................ 24 VAC

FLAME SAFETY....Direct Spark Ignition of Main Flame, Electronic Safety

TABLE 1: Burner Specifications

1. SCFM = Standard Cubic Feet / Minute.

2. All Ratings Based on 1000 BTU/Cu. Ft. NATURAL Derate burner for altitude over 2,000 feet by

4% for each 1,000 feet above sea level.

3. 1 MBH = 1,000 BTU/hr.

4. Burners available in 115V, 208V or 230V power supply. Consult burner name plate for correct

power supply, or as recommended by the equipment manufacturer.

____________________________

 The burner tube, or the stainless steel sleeve that is included with the burner, must be
sealed air tight into the combustion chamber opening with refractory material. The sleeve is
preferred as it is designed to properly locate the end of the tube relative to the inside wall of
the combustion chamber, and to permit burner removal

or as recommended by the equipment

manufacturer

.

CAUTION: In no case should the burner tube be allowed to extend into the
chamber because high combustion chamber temperatures will cause premature
electrode, burner tube and sleeve deterioration.

____________________________

CAUTION: Refer to wiring diagram in Figure 1 or located on the burner
housing.

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. 70 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. Hook up to a dedicated line
with an on-off disconnect switch and a minimum 10 Amp breaker, or as required by
equipment manufacturer.
 The frame of the burner should be well grounded. A ground lug is located in control box
for positive grounding where insulated pipe couplings are used or where any doubt exists
regarding grounding sufficiency.
 Confirm that the polarity is correct—hot wire to strip terminal L1, neutral L2—and that the
neutral line is not subject to induced low voltage (check L2 to earth ground) from other
equipment, as that can cause the Electronic Control to malfunction.
 Each installation must include suitable limit control(s).

CAUTION: Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation. Verify proper operation
after servicing.

Part 1

Installation

2

I Combustion

Chamber

II Electrical

____________________________

CAUTION: The available gas pressure should be within the limits shown in
Table 1 - SPECIFICATIONS section. Excessive pressure may damage electric valves,
regulators and manual valves. If the supply pressure exceeds the 14.0"W.C. maximum,
a suitable high pressure regulator must be installed between the Main Manual
Shut-Off Valve and burner combination valve.

 The burner gas supply piping should branch off from the main line as close to the gas
meter as possible. Do not connect to the bottom of a horizontal section. Use new black pipe
and malleable fittings free of cutting and threading burrs or defects.

 Piping must also comply with your local codes.
 To obtain the maximum firing rate of the burner, the gas supply piping must be sized to

provide a minimum pressure of 7.0"W.C. (Natural) for 400 MBH to the inlet of the combination
redundant valve when the burner and all other gas utilization equipment are on refer to table
# 3 for 350 MBH and 250MBH gas pressure requirements. The main regulator, if equipped,
should be mounted upright and in a horizontal run of pipe, refer to regulator manufacturer’s
installation instructions.

CAUTION: Because it is difficult to accurately control pressure during supply
pipe leak testing, it is recommended that all low pressure 1/2 PSIG (14.0"W.C. max.)
components be disconnected during testing. Exposing low pressure regulators and
valves, including manual valves, to pressures over 1/2 PSIG (14.0"W.C.) will cause
damage and void all warranties.

3

Part 1

Part 1 Installation

Figure 1: Wiring Diagrams

II Electrical

Continued

III Piping