Midco Economite RE4400DS HTD - Manual (Page 2)

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