Midco J121-DS - Manual (Page 2)

Part 1 Installation
Specifications 1
Part 1
Installation
BURNER AIR DELIVERY
Approximate Air Delivery at Zero Draft….....180 SCFM 2
MINIMUM GAS PRESSURE LISTED FOR PURPOSE OF
INPUT ADJUSTMENT (Take Pressure at Inlet Tap of Main Automatic Valve)
NATURAL………………………………………………..5.5" W.C.
PROPANE……………………………………………….8.0" W.C.
BURNER FIRING RATE (NATURAL OR PROPANE) 3
All Ratings Based on 1000 BTU/cu. ft. NATURAL, 2500 BTU/cu. ft. PROPANE at Sea Level
MINIMUM……………………………………………...100 MBH 4
MAXIMUM (With Combustion Air From Burner Only)
20% Excess Air……………………………900 MBH
0% Excess Air (stoichiometric)……..….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……….1,200 MBH
ELECTRICAL SUPPLY……………………120/1/60; 4.5 amps
BURNER ON-OFF CONTROL……………Toggle Switch.
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 UL recognized, 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. De-rate burner for altitudes over 2,000 feet by 4% for each 1000 feet of
additional elevation.
4. 100 MBH = 100,000 BTU/Hr.
5. Kit is available for field installation.
2
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.
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Make sure that the incinerator room has sufficient 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.
I Primary Chamber Fuel Input
II Indoor Ventilation