INSTRUCTION MANUAL FOR Horizontal Air Flow Clear Room Oven CR1-2 PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION 3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 mrc@mrclab.com MRC.VER.01-06.
TABLE OF CONTENTS SECTION 1.0 RECEIVING AND INSPECTION SECTION 2.0 GRAPHIC SYMBOLS SECTION 3.0 INSTALLATION SECTION 4.0 CONTROL OVERVIEW SECTION 5.0 PRECAUTIONS SECTION 6.0 CLEAN ROOM READY INSTRUCTIONS SECTION 7.0 OPERATION SECTION 8.0 MAINTENCE SECTION 9.0 TROUBLESHOOTING AND SERVICE SECTION 10.0 PARTS LIST UNIT SPECIFICATIONS SCHEMATICS REV.
Section RECEIVING AND INSPECTION 1 Your satisfaction and safety require a complete understanding of this unit. Read the instructions thoroughly and be sure all operators are given adequate training before attempting to put the unit in service. NOTE: This equipment must be used only for its intended application; any alterations or modifications will void your warranty. 1.1 Inspection: The carrier, when accepting shipment, also accepts responsibility for safe delivery and is liable for loss or damage.
Section GRAPHIC SYMBOLS 2 Your oven has been provided with a display of graphic symbols which is designed to help in identifying the use and function of the available user, adjustable components. 2.1 Indicates that you should consult your manual for further description or discussion of a control or user item. 2.2 Indicates “Adjustable Temperature”. 2.3 Indicates “AC Power ON”. 2.4 Indicates “High Limit Safety”. 2.5 Indicates “Manual Control”. 2.
Section INSTALLATION 3 Local city, county or other ordinances may govern the use of this equipment. If you have any questions about local requirements, please contact the appropriate local agency. Installation of the CR1-2 requires hard wiring and should be performed by a qualified electrical technician.
3.4 Leveling: The unit must sit level and solidly. Leveling feet are supplied and must be installed in the four holes in the bottom corners of the unit. With the feet installed and the unit standing upright, each foot can be raised by turning it in a counterclockwise direction. Adjust the foot at each corner until the unit stands level and solid without rocking. If the unit must be moved, turn the leveling feet all the way clockwise to prevent damage while moving. 3.
Section CONTROL PANEL OVERVIEW 4 4.1 Power Switch: The main power I/O (on/off) switch controls all power to the unit and must be in the I/ON position before any systems are operational. 4.2 High Limit Safety Thermostat: The High Limit Safety is an independent temperature control that must be adjusted by a flat-head screw driver. It prevents temperature runaway in the event that the Main Temperature controller fails.
Section PRECAUTIONS 5 5.1 The bottom surface of the chamber should not be used as a work surface. 5.2 This unit has been designed with a dampered vent(s) from the chamber. In order to work effectively and safely, some precautions will need to be taken by the operator. a. In most applications, the exhaust damper will need to be open during drying or degassing for best results. b. THIS OVEN IS NOT DESIGNED TO HANDLE COMBUSTIBLE GASSES, AND IS NOT AN EXPLOSION PROOF UNIT.
Section 6 MODEL CR1-2 CLEAN ROOM READY INSTRUCTIONS This oven has been designed to operate at class 100 standards. It is not shipped clean room ready and the instructions below must be followed for proper installation. See Figure 2 6.1 BURN-IN OF THE HEPA FILTER Before using this oven, it is important that the filter be burnt-in properly. During burn-in, the Hepa filter will off gas. Because of this the intake and exhaust ports must be open, with the exhaust ports being ducted outside.
compartment temperature and maintain Class 100 integrity. If you are unable to exhaust the minimum 30 CFM from the control compartment, then you must limit the maximum operating temperature to 200°C. Operation of the unit above 200°C, without moving the required 30 CFM through the control compartments exhaust, will result in control degradation and process failure.
Section OPERATION 7 All control functions are covered in the Jumo Manual. This is a simplified version. Check power supply against unit serial plate. They must match. On ovens that need to be hard wire, must be done by a qualified electrical technician. 7.1 Push the power switch to the I/ON position, turn the high limit thermostat to its maximum position clockwise using a flat-head screw driver. The main temperature controller should be illuminated.
2. After you reach “CONF”, push the PGM Button again and use Up and Down Arrows to navigate until you reach “PRO” in the bottom display and push the “PGM” button again. 3. The display should now read “FNCT” in the bottom display and “2” in the top display. You will need to change the “2” to “0”. To do that, push the “PGM” button once and the “FNCT” should start flashing. While it is flashing, use the Down Arrow to change the “2” to “0”.
and a RAMP/PROGRAM symbol will appear in the lower right side of the display. This indicates the program is running. To stop the program, push the up arrow again and the RAMP/PROGRAM symbol will disappear and the program will end. After program ends, control returns to previous Set Point (starting Set Point). This is explained in Section 6.5 Paragraph 4. OFFSET CALIBRATION This is used to match the process temperature to an independent thermometer.
Section MAINTENANCE 8.1 8 Cleaning: The unit chamber should be cleaned and disinfected on a regular basis. Remove shelving & shelving supports then clean thoroughly, including all corners using a suitable disinfectant that is appropriate to your application. Regular periodic cleaning is required. Special care should be taken when cleaning around sensing heads to prevent damage. DO NOT use chlorine based bleaches or abrasive cleaners as this will damage the stainless steel interior.
Section TROUBLESHOOTING 9 TEMPERATURE Temperature too high 1/ controller set too high-see your Jumo users manual 2/ controller failed on – call Customer Service 3/ wiring error – call Customer Service Display reads "HI" or "400"+ Probe is unplugged, is broken or wire to sensor is broken – trace wire from display to probe; move wire and watch display to see intermittent problems Chamber temp spikes over set point and then settles to set point Recalibrate – see Jumo users manual Temperature too low 1/
Unit will heat up at all 1/ verify that controller is asking for heat by looking for controller light – if controller light is not on, there is a problem with the controller 2/check amperage – amperage should be virtually at maximum rated (data plate) amperage 3/ do all controller functions work? 4/ is the High Limit set high enough? – for diagnostics, should be fully clockwise with the pilot light never on 5/ has the fuse/circuit breaker blown? Indicated chamber temperature unstable 1/ ±0.
MECHANICAL Door not sealing 1/ check physical condition of gasket 2/ assure that gasket is in original location Motor doesn't move 1/ if shaft spins freely: check connections to motor and check voltage to motor 2/ if shaft rubs or is frozen, relieve binding and retest Motor makes noise 1) Make sure that the fan or blower wheel is not contacting its housing. Adjust the motor mounting bracket position to re-center the fan or blower wheel, if necessary.
SERVICE If this product should require service, contact your service representative. For information on where to reach customer service please see the front cover of this manual. Should return of this product be necessary a return Authorization number must be obtained and the product shipped according to your representatives instructions to the indicated service center. If a return authorization number is not obtained then the product will be returned back to the sender.
Section PARTS LIST 10 Units are 220 Volt. Description Part No.
UNIT SPECIFICATIONS These units are 240 VAC. See the individual data plate of the unit for specific ratings. Weight Shipping Net CR1-2 425 lbs. 325 lbs. Dimensions Exterior WxDxH Interior WxDxH (in) (in) CR1-2 35 x 30.25 x 38 Capacity Cubic Feet CR1-2 4.0 Temperature CR1-2 POWER CR1-2 CR1-2 Range Uniformity Control 40 to 200°C +1.0° @ 110°C 0.1°C VOLTAGE 220V Recovery Time 17 x 20 x 20.125 AMPERAGE WATTAGE HERTZ 11.
WIRE DIAGRAM 21
