Dear MIFCO Customer: We would like to thank and congratulate you on the purchase of the McEnglevan machine and accessories, and to share with you our confidence in the quality and reliability of our equipment. The enclosed Operating Manual and Warranty Registration Card are important to both of us for two reasons: l. Your Registration Card, with proper serial number, will be documented in our files and your written warranty will be forwarded to you upon the receipt of this card.
Index Model No. and Electrical Specifications .......................................................................... 3 Furnace Installation and Set-Up ....................................................................................... 4 Break In Procedure ............................................................................................................ 5 Start-Up Procedure.............................................................................................................
DO NOT REMOVE THIS PAGE This manual contains the Electrical Wiring schematic applicable to this particular equipment. If there are any questions, contact your distributor or the factory. Only licensed electricians or qualified factory representatives should trouble shoot the electrical system of this equipment. The electrical portion of this equipment is built in compliance with the National Electric Code in effect as of this date.
Furnace Installation and Set-Up 1. Cut all banding, remove shrink wrap and remove furnace from skid. Be sure to locate hearth plate in packing materials and set aside, if your furnace comes with one. (Models HTE-46, HTE-88, HTE1212, HTE-1210, HTE-1414, DU-614, DU-1020, DU-1224) 2. Set furnace in place, allowing at least 24 inches clearance around the unit on all sides. Larger units may require bolting the furnace shell to the floor.
New Furnace BREAK-IN Procedure • These instructions apply to the following MIFCO models: HTE46, HTE-88, HTE-1212, HTE-1414, HTE-2020, HTE-2424 - These instructions apply to the upper chambers of the following MIFCO models: DU-614, DU-1020, DU-1224, DU-2020 It is important for your new furnace to be slowly heated and dried before using. The high temperature cast insulation that helps make your MIFCO furnace energy efficient and fast heating contains moisture trapped during the casting process.
Electric Heat Treat Furnace Start-Up Procedure MIFCO Heat Treat Furnaces are very easy to operate. They have been thoroughly tested and calibrated at the factory. The following steps will get the furnace running and if you refer to the easy, one page start-up guides for your particular instrument, the setpoints and programs can be entered. Included in this manual are the instrument manuals for your particular furnace, from the manufacturer. Start-Up 1. Press the start button or flip the toggle switch to on.
ATTENTION: READ ME FIRST!!! Watlow F4 Temperature Controller Programming the Control Instrument First of all, the Watlow Control Instrument is pre-programmed here at the factory and has tuning parameters entered into it that have been arrived at by extensive testing. Everyone’s needs are different and the control parameters chosen were decided on for a mixture of speed, to get the load up to temperature as fast as possible, and to minimize overshoot of the setpoint.
(For special order units with the following controller.) Watlow Series 96 Temperature Controllers The HTE-46, E4-0, EM-46, and the EM-810 furnaces are equipped with the Watlow Series 96 Temperature controller. These are pre-tuned at the factory for optimum performance and the furnace is tested at two temperature setpoints. When you receive your unit, all you need to do is apply power, turn the toggle switch to the on position, and the unit will begin heating to one of the last setpoints from the factory.
(For special order units with the following controller.) Operation of the Watlow 942 and 945 Control Instrument This is intended as a quick reference guide and should not be substituted for reading the product manual! The purpose of this sheet is to get the furnace up and running quickly and simplify operation in the beginning. Your new furnace was tested at the factory prior to shipping and the instrument(s) were tuned for optimum performance. There should be no need for further adjustment in the field.
(For special order units with the following controller.) Operation of the Watlow 945 High Limit Instrument This is intended as a quick reference guide and should not be substituted for reading the product manual! The purpose of this sheet is to get the furnace up and running quickly and simplify operation in the beginning. Your new furnace was tested at the factory prior to shipping and the instrument(s) were tuned for optimum performance. There should be no need for further adjustment in the field.
(For special order units with the following controller.) OPERATION OF HONEYWELL UDC-2000 SERIES CONTROLLERS THIS IS INTENDED ASAQUICK REFERENCE GUIDE AND SHOULD NOT BE SUBSTITUTED FOR READING THE PRODUCT MANUAL. THE PURPOSE OF THIS SHEET IS TO GET YOUR FURNACE RUNNING AND SIMPLIFY OPERATION IN THE BEGINNING. Your instrument has been calibrated and tuned at the factory prior to shipping. There should be no need for further adjustment in the field. To begin with, the UDC-2000 is relatively simple to operate.
(For special order units with the following controller.) OPERATION OF HONEYWELL UDC-3000 SERIES CONTROLLERS Entering a Single SetPoint In order to set a single setpoint, the setpoint program must not be running. This would be indicated by an H in the upper display, to the left of the process temperature readout. To enter a setpoint, press the LOWR DISP button until SP is in the lower display. Press the up or down (arrow) buttons until the desired setpoint reads out in the lower display.
(For special order units with the following controller.) OPERATION OF THE HONEYWELL UDC-2000 HIGH LIMIT THIS IS INTENDED AS A QUICK REFERENCE GUIDE AND SHOULD NOT BE SUBSTITUTED FOR READING THE PRODUCT MANUAL. THE PURPOSE OF THIS SHEET IS TO GET YOUR FURNACE RUNNING AND SIMPLIFY OPERATION IN THE BEGINNING. INDUSTRIAL FURNACES WITH HIGH LIMIT Once you have started your furnace and entered a setpoint in the control instrument, you must also enter a setpoint value in the High Limit instrument.
RECORDING INSTRUMENT The recording instrument is powered by a toggle switch located next to the instrument or, in some units, will be wired to come on with the control instruments. The instrument can record one or both chamber’s processes. Input 1 is the upper chamber and input 2 is the lower chamber. To avoid a print-out on an unused chamber, the inputs can be disabled. All operating parameters have been entered here at the factory, but the time will have to be set upon arrival.
INSTRUMENTATION WITH AUDIBLE ALARM Programming for Honeywell Instruments A sample program is entered into the instrument memory at the factory to demonstrate how the audible alarm works. The sample program consists of 1 minute ramps and soaks. At the end of a soak segment, there is a 1 minute ramp used for the alarm segment. The audible alarm is a programmed “event” alarm. This means that at the beginning of the chosen alarm segment, the relay for the bell will close, and the bell will be energized.
ATMOSPHERE CONTROL OPTION Control of the furnace atmosphere has become increasingly critical to successful heat treating with precise metallurgical specifications. The prevention of surface oxidation or scaling when metals are exposed to elevated temperatures remains the most important function of the furnace atmosphere.
DUI020 parts Upper chamber: 402537 Upper door plug 008174 Upper door plug cement 402580 Upper door seal ring assembly 402568 Upper door seal ( 4 pcs.
DU1020 parts cont.
DU1224 parts Upper chamber: 401592 Upper door plug 008174 Upper door plug cement 402770 Upper door seal ring assembly 402779 Upper door seal (4 pcs.
DU 1224 parts cont.
