Midco J121A-3 - Manual (Page 2)

SPECIFICATIONS 1
BURNER AIR DELIVERY (Approximate Air Delivery at Zero Draft)
J81A-3………………………………………....90 SCFM 2
J121A-3………………………………………..180 SCFM
MINIMUM GAS PRESSURE LISTED FOR PURPOSE OF
INPUT ADJUSTMENT
( Take Pressure at Inlet Tap of Main Automatic Va l v e )
N ATURAL………………………………………………..5.5" W. C .
P R O PANE……………………………………………….8.0" W. C .
BURNER FIRING RATE (NAT U R A L OR PROPA N E ) 3
All Ratings Based on 1000 BTU/cu. ft. NATURAL, 2500 BTU/cu. ft. PROPANE at Sea Level
M I N I M U M
J81A-3 or J121A-3…………………………………100 MBH 4
MAXIMUM (With Combustion Air From Burner Only)
J81A-3
20% Excess Air……………………………450 MBH
0% Excess Air (stoichiometric)…………..540 MBH
J121A-3
20% Excess Air……………………………900 MBH
0% Excess Air……………………………1080 MBH
MAXIMUM (With Combustion Air From Burner Blower and
Additional Air Available in Combustion Chamber.)
NATURAL Gas 5.5" W.C. or PROPANE Gas
at 11.0" W.C. Gas Pressure at Main Automatic Valve
J81A-3…………………………………………800 MBH
J121A-3……………………………………..1,200 MBH
ELECTRICAL SUPPLY
J81A-3………………………………...120/1/60; 3 a m p s
J121A-3………………………………..120/1/60; 4.5 amps
BURNER ON-OFF CONTROL……………Toggle Switch.
Optional 0 to 6 Hr. Manual Timer 5
FLAME SAFETY…………………...Electronic Flame Safety
with spark ignited ignitor (pilot) and 100% shut-off.
OPTIONAL WEATHERHOOD 5
ADJUSTABLE FIRING ANGLE…………...Mounting Flange
adjustable for horizontal or 10° down firing.
NOTE: Burner components are ULrecognized, CGA listed, CSA
certified and/or AGA design certified, mounted and wired. The
complete burner is fire tested.
1. Standard burners are shipped as NATURAL gas models. A kit is
available for field conversion to PROPANE gas.
2. SCFM = Standard Cubic Feet/Minute.
3.
NOTE: Firing rate with combustion air from burner blower only is
based on using standard air at sea level with zero draft over-fire.
Derate burner for altitudes over 2,000 feet by 4% for each 1000
feet above sea level.
4. 100 MBH = 100,000 BTU/Hr.
5. Kit is available for field installation.
PART 1 INSTALLATION
I PRIMARY CHAMBER FUEL INPUT
■ No. 1 Waste: Primarily dry material such as paper, rags
and wood. Burner normally required only for light-off.
■ No. 2 Waste: Consisting of approximately equal portions,
by weight of No. 1 and No. 3 waste; 70 lbs. per 100 MBH.
■ No. 3 Waste: Wet material such as garbage; 25lbs. per
100 MBH.
■ No. 4 Waste: Organic materials such as small carcasses
and waste from hospital operating rooms or pathological
laboratories; 13 lbs. per 100 MBH.
NOTE: The burner input required for the secondary
chamber must be determined from the heat required to
maintain the discharge temperature of the flue products as
specified by the EPA for the type of waste involved and the
location of the incinerator.
II INDOOR VENTILATION
Make sure that the incinerator room has suff i c i e n t
ventilation to provide the necessary combustion air for the
burner fuel, the waste material and any other appliance that
would draw its air from the same enclosed area.
WARNING: Under no condition should the access to
outside air be so restricted that the maximum possible
use of combustion air is inhibited. Pay particular
attention to exhaust fans that could draw air from the
area and create a negative pressure in the room.
III INSTALLATION
Install the INCINOMITE burner(s) in location(s) specified by
the incinerator manufacturer. It should be positioned
approximately level with the top of the highest normal load
and fire with or across the draft flow.
FIGURE 1 Typical Installation
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