Midco Economite RE4400B / RE4400BA - Manual (Page 2)

Part 1 Installation
Specifications 1
The ECONOMITE Models RE 4850BA, RE4700BA, RE4400B and RE4400BA burners
with intermittent spark ignited pilot are adaptable to most gas utilization equipment, including
gravity and forced circulation furnaces and boilers. They are particularly recommended for
firing horizontal or downdraft equipment since no draft is required to maintain a pilot. Power
burner design makes them perfectly suited for oil burner replacement, including rooftop and
industrial applications.
AIR DELIVERY (Approximate Air Delivery at Zero Draft)
RE 4850BA RE4700BA RE4400B & RE4400BA
180SCFM 2 14 6 SCFM 2 85SCFM 2
FIRING RATE (NATURAL OR PROPANE ) 3
RE 4850BA RE4700BA RE4400B RE4400BA
MAXIMUM MBH 4 850 700 400 400
MINIMUM MBH 280 230 132 132
GAS SUPPLY PRESSURE REQUIRED
NATURAL ............................................................. 7.0" to 14.0" W.C.
PROPANE ............................................................ 5.0" TO 14.0" W.C.
TUBE DIAMETER.................................................................. 4"
TUBE LENGTH...................................................................... 9"
RECOMMENDED COMBUSTION CHAMBER SIZE (AT MAX. BTU/HR)
RE 4850BA RE4700BA RE4400B RE4400BA
WIDTH 15" 15" 10" 10"
LENGTH 30" 25" 16.5" 16.5"
ELECTRICAL SUPPLY......................................120 VAC...........60 Hertz 5
IGNITION CONTROL MODULE VOLTAGE ....... 24 VAC
FLAME SAFETY....Electronic Flame Safety with Spark Ignited Pilot and 100% Shut-Off
6
TABLE 1: Burner Specifications
1. Standard burners are shipped as NATURAL gas models. Contact your Midco dealer for
PROPANE gas burners.
2. SCFM = Standard Cubic Feet / Minute.
3. 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.
4. 1 MBH = 1,000 BTU/hr.
5. For 50 Hertz applications the RE4850BA, RE4700BA, RE4400B and RE4400BA will be derated
by 20%. Contact the factory for details. NOTE: Burners rated for 50Hertz are not UL Listed.
6. See Section XII of Operational Sequence
CAUTION: The ECONOMITE Models RE4850BA, RE4700BA, RE4400B and
RE4400BA Burners are not intended for outdoor installation and must be protected
from excessive moisture. Provide adequate clearance for service and proper
operation.
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If the former automatic oil burner gave trouble-free operation, it is probable that the heating
plant area has sufficient infiltration of air for combustion and dilution of flue gases.
Nevertheless, the area must be checked.
Open basement or utility areas of normal construction, without storm windows or tight
doors, will generally allow sufficient air infiltration. However, if the heating plant is located in
a tight or separate room, ventilation to an open area as described above will be required.
Install two permanently open grills, each sized on the basis of one square inch free area per
1,000 BTU (but not less than 100 square inches) of the total input rating of all gas utilization
equipment in the combined space. One grille should be located within 12 inches of the
ceiling, the other within 12 inches of the floor.
If the heating plant is located in an area of unusually tight construction, or if an exhaust
fan, kitchen ventilation system, clothes dryer and/or fireplace is installed in the building,
provisions must be made for an outside air supply near the heating appliance area. Install
permanently open grills sized at not less than one square inch free area per 4,000 BTU of
burner input. When ventilating through horizontal ducts, grills should be sized at not less
than one square inch free area per 2,000 BTU of burner input. In any case, the minimum
dimension of rectangular air ducts shall not be less than 3 inches.
In Canada, for detailed ventilation requirements, refer to standard CAN 1-B149.1 or .2
and/or local codes.
Part 1
Installation
2
I Ventilation