Midco Economite RE4400DS - Manual (Page 2)

Part 1 Installation
Specifications 1
The ECONOMITE Model RE 4400DS and RE4400DSA burners with direct spark ignition
are adaptable to most gas utilization equipment, including furnaces and boilers. Power
burner design makes them perfectly suited for oil burner replacement, including rooftop and
industrial applications.
AIR DELIVERY (Approximate Air Delivery at Zero Draft)
R E 4 4 0 0 D S a n d R E 4 4 0 0 D S A ..... 125 SCFM
2
FIRING RATE (NATURAL OR PROPANE )
3
RE4400DS & RE4400DSA
MAXIMUM MBH
4
400
MINIMUM MBH
4
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)
RE4400DS & RE4400DSA
WIDTH 10"
LENGTH 16.5"
ELECTRICAL SUPPLY......................................120 VAC...........60 Hertz
5
ELECTRONIC CONTROL VOLTAGE ................ 24 VAC
FLAME SAFETY....Direct Spark Ignition of Main Flame, Electronic Safety
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 and 2500 BTU/cu.ft PROPANE. 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 RE4400DS and RE4400DSA will be derated by 20%. Contact the
factory for details. NOTE: Burners rated for 50Hertz are not UL Listed.
____________________________
CAUTION: The ECONOMITE Model RE4400DS and RE4400DSA Burners are
not intended for outdoor installation and must be protected from excessive moisture.
Provide adequate clearance for service and proper operation.
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.
____________________________
? Clean the gas utilization equipment combustion chamber, heat exchanger interior, and flue
connections. Remove all adhering tars, scale, dirt and soot. Inspect for actual or potential
leaks.
? Cement all joints, including those in the heating appliance base and around the door
frames, to prevent leakage into, or out of the combustion chamber.
? The access or firing door should open easily to relieve pressure. If positive latches exist,
they should be modified to permit easy opening; a spring loaded door holder is
recommended.
? On all boilers, make certain the pressure relief safety valve is in good operating condition.
Part 1
Installation
2
I Ventilation
II Preparation of
the Gas Utilization
Equipment