MUFLA Serie 3050 Thermo Scientific

8/10/2019 MUFLA Serie 3050 Thermo Scientific

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LT2042X2 4/8/09 Serial Number________________________

Precision Premium Ovens3050 Series

Operation Manual & Parts List

Gravity Models Forced Air ModelsOV700G (Small) OV700F (Small)PR305045G, 40G & 40GCN PR305045M, 40M & 40MCN

OV701G (Medium) OV701F (Medium)PR305055G, 50G & 50GCN PR305055M, 50M & 50MCN

OV702G (Large) OV702F (Large)

PR305065G, 60G & 60GCN PR305065M, 60M & 60MCN


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Introduction ........................................................................................................................................................ 3Specifications ......................................................................................................................................................5

Performance Characteristics ........................................................................................................................5Electrical Requirements................................................................................................................................6Power Requirements ....................................................................................................................................6Chamber Volumes ........................................................................................................................................6Chamber Dimensions ..................................................................................................................................6

Installation ..........................................................................................................................................................7Selecting a Location ....................................................................................................................................7Unpacking ....................................................................................................................................................7Preparing the Oven ......................................................................................................................................8

Power Switch ................................................................................................................................................8Controls ..............................................................................................................................................................9

Display ..........................................................................................................................................................9Keypad........................................................................................................................................................10

Operation ..........................................................................................................................................................11Safety Precautions......................................................................................................................................11Limit Alarms ................................................................................................................................................12Display Offsets............................................................................................................................................13

Service ..............................................................................................................................................................14Replacing the Door Gasket ........................................................................................................................14Replacing the Door Handle ........................................................................................................................15Adjusting the Door Cam ............................................................................................................................16Accessing the Electronics Compartment....................................................................................................16Replacing the Heater ..................................................................................................................................17Replacing the Cooling Fan ........................................................................................................................18Replacing the Circulating Fan Motor ..........................................................................................................18Replacing the Controller ............................................................................................................................19Replacing the Solid State Relay ................................................................................................................20Replacing the Safety Relay ........................................................................................................................20Replacing the Control Thermocouple ........................................................................................................21

Troubleshooting ................................................................................................................................................22Replacement Parts............................................................................................................................................23Schematic..........................................................................................................................................................24Warranty............................................................................................................................................................28

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Table of Contents


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Thermo Scientific Precision 3050 Series premium ovensare available in three sizes: small (OV700F andOV700G), medium (OV701F and OV701G) and large(OV702F and OV702G). All ovens provide PIDMicroprocessor control at operating temperatures rangingfrom 50C (122F) to 275C (527F).

The forced air models provide improved temperature uni-formity and control, as well as faster drying. In these mod-els, fresh air enters through an air intake on the bottom ofthe oven, then is heated in a plenum below the chamber.

A blower circulates the heated air into the wall plenumsand the oven chamber itself in uniform flow patterns.Exhaust air is vented through a port at the top of theoven.

Gravity flow models inlet air through a port located underthe oven floor. Heat generated convection then gentlymoves the air in a vertical circulation pattern. Exhaust airis vented through a port at the oven top.

Temperature readouts and control parameters are shownon red LEDs. Three additional LEDs indicate when heaterpower is being applied, an error condition is encountered,or the temperature is being set.

The OV700F and OV700G ovens accommodate a maxi-mum of five shelves. The OV701F and OV701G holdeight shelves, while the OV702F and OV702G each holdeleven.

Precision ovens incorporate a variety of safety features. Asafety backup is built into the controller software: if theprimary heater control fails, the backup will maintain con-trol at 5C above the set point. An alarm LED then indi-cates that the backup controller is operating the oven. Acircuit breaker protects the oven from power surges. If pri-mary backup heater controls fail, an independent OverTemperature Device will disengage heater operation.

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Introduction

WarningWarnings alert you to a possibility of per-sonal injury.

CautionCautions alert you to a possibility ofdamage to the equipment.

NoteNotes alert you to pertinent facts andconditions.

Hot SurfaceHot surfaces alert you to a possibility ofpersonal injury if you come in contactwith a surface during use or for a periodof time after use.

Alert Signals


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The silicon rubber gasket supplied with the oven is goodfor continuous use up to 250C and intermittent use to275C. This gasket provides a better seal than the hightemperature gasket and is supplied with is supplied withthe unit. An optional high temperature braided gasket isavailable for customers using the oven frequently above250C. The part numbers of the supplied and optionalgasket are listed below:

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INTRODUCTION

Oven Silicon Rubber Gasket Part # Braided Gasket Part #(Supplied with Oven) (High Temp Gasket Optional)

OV700F, OV700G SPN 101908 SPN 95782OV701F, OV701G SPN 101909 SPN 95783OV702F, OV702G SPN 101910 SPN 95784


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5

Performance CharacteristicsOperating Range 50 to 275Average Uniformity @ 200*

Forced Air Models +/-3CGravity Models +/-4C

Control Resolution 1C

Control Sensitivity +/-0.5C

Recovery Time @ 200C**OV700F 1.0 minutes

OV700G 2.0 minutesOV701F 2.0 minutesOV701G 3.0 minutesOV702F 2.5 minutesOV702G 4.0 minutes

Rise Time to 275COV700F 70 minutesOV700G 40 minutesOV701F 80 minutesOV701G 80 minutesOV702F 80 minutesOV702G 100 minutes

Air Exchanges per Hour*OV700F 43OV700G 24OV701F 29OV701G 16OV702F 22OV702G 12

BTU/hr Output @100C @200COV700F 1125 2750OV700G 470 1325OV701F 1325 2925OV701G 1040 2025OV702F 1325 3095OV702G 1150 2040

*as per ASTM E145 **door open one minute

Specifications


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Electrical RequirementsOV700F

PR305045M 120 V, 11.5A, 1380W, 60 Hz

PR305040M 240 V, 5.8A, 1392W, 50/60 HzPR305040MCN 240 V, 5.8A, 1392W, 50/60 Hz

OV700GPR305045G 120 V, 11A, 1320W, 60HzPR305040G 240 V, 5.5A, 1320W, 50/60HzPR305040GCN 240 V, 5.5A, 1320W, 50/60Hz

OV701FPR305055M 120 V, 15.5A, 1860W, 60 HzPR305050M 240 V, 7.8A, 1870W, 50/60 HzPR305050MCN 240 V, 7.8A, 1870W, 50/60 Hz

OV701GPR305055G 120 V, 15A, 1800W, 60HzPR305050G 240 V 7.5A, 1800W, 50/60HzPR305050GCN 240 V 7.5A, 1800W, 50/60Hz

OV702FPR305065M 120 V, 15.5A, 1860W, 60 HzPR305060M 240 V, 7.8A, 1872W, 50/60 HzPR305060MCN 240 V, 7.8A, 1872W, 50/60 Hz

OV702GPR305065G 120 V, 15A, 1800W, 60HzPR305060G 240 V, 7.5A, 1800W, 50/60HzPR305060GCN 240 V, 7.5A, 1800W, 50/60Hz

Chamber VolumesOV700F & OV700G 2.5 cu ftOV701F & OV701G 3.8 cu ftOV702F & OV702G 5.0 cu ft

Chamber Dimensions (W x D x H)OV700F & OV700G 18 x 18 x 13.5 inOV701F & OV701G 18 x 18 x 20 inOV702F & OV702G 18 x 18 x 26.5 in

Environmental ConditionsOperating: 17C to 27C; 20% to 80% relative humidity,

non-condensing.Installation category II (overvoltage) in accor-dance with IEC 664.Pollution degree 2 in accordance wth IEC 664.Altitude Limit: 2,000 meters.

Storage: -25C to 65C 10% to 85% relative humidity

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S PECIFICATIONS


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7

Selecting a LocationThe oven requires an area approximately 2 ft. x 2 ft. Thebench selected must be capable of supporting at least120 lbs. for the OV700F and OV700G ovens, 130 lbs. forthe OV701F and OV701G ovens, or 135 lbs. for theOV702F and OV702G. Proper electrical power must beavailable. Locate the oven such that no extension cord isrequired. The oven shall have a 2 air clearance on allsides (6 if combustible materials) and a minimum of 24air clearance on top to allow heat dissipation and prevent

temperature build ups.

UnpackingThermo Scientific Precision ovens are shipped in a singlecarton. After unpacking, locate each item shown in the listbelow. Report any missing items, by name and part num-ber, to your Thermo Scientific branch. In the event ofshipping damage, retain the shipping material and file aclaim with the final carrier.

ItemOven Assembly

OV700F & OV700G (small)120 V, 50/60 Hz240 V, 50/60 Hz

OV701F & OV701G (medium)120 V, 50/60 Hz240 V, 50/60 Hz

OV702F & OV702G120 V, 50/60 Hz240 V, 50/60 Hz

ShelvesOV700F, OV700G, OV701F, OV701G(one provided)OV702F, OV702G (two provided)

Shelf SupportsOV700F, OV700G, OV701F, OV701G(two provided)OV702F, OV702G (four provided)

Instruction Manual

Installation

NoteIf the equipment is used in a mannernot specified by the manufacturer,the protection provided by the equip-ment may be impaired.

Hot SurfaceOven vent and exiting air are hot.Keep hands away.

WarningDo not use top of oven as a shelf.

Do not cover oven vent hole.

Keep combustible materials awayfrom oven vent hole.


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Preparing the OvenTo prepare the oven for operation, perform the followingprocedures:

1. Install the shelf.

2. Make certain all packing material has beenremoved from oven chamber.

3. Connect the line cord to an appropriate electri-cal outlet.

4. The oven is now ready for operation. No prelimi-nary adjustments or calibrations are required.Depending on the customer application and cus-tomer laboratory procedures an initial calibrationmay be done at this point. (See Display Off-sets )

Power SwitchThe 3050 Series ovens feature a front panel mountedpower switch which is a Switch combination power switchand circuit breaker, eliminating the need for separatefusing. The circuit breaker will interrupt power in the eventof an oven heater malfunction. Press the I (upper) half ofthe rocker-type power switch to the in position to turn theoven on. Press the 0 (lower) half to the in position to turnoff oven power. To reset the breaker, first place the switchto the off position, then return it to the on position.

INSTALLATION

CautionSee data plate on oven for voltage,current and line frequency specifica-tions. Check that the power require-ments of the oven will not overload thecircuit to which it will be connected.


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The following sections briefly describe the locations andfunctions of various display fields and keypad controls.More detailed descriptions are provided, when required,in the operating sections of the manual.

DisplayThe 3050 Series controller features a bright, one-half inchLED numeric display which reads out the oven tempera-ture. Three smaller LEDs indicate, respectively, an alarm

condition, that power is being applied to the oven heatersor that the control temperature is being set. Each displayfield is discussed separately below.

Controls

Figure 1: Display Fields

Temperature Display In the normal operating mode, shows the current oventemperature. During programming, indicates the oven settemperature target.

Heat Indicator Lights when power is being supplied to the oven heater.

Alarm Indicator Lights if the actual oven temperature exceeds the alarmtemperature. The alarm temperature is factory-adjustedto be 5C above the set temperature.

Program Indicator Lights when the control temperature is being set.


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KeypadThe 3050 Series incorporates a four-key, tactile keypad.The function of each key is discussed individually below.

CONTROLS

Figure 2: The Keypad

Pressing MENU while holding down the SET key decreases the oven set temper-ature, as indicated on the temperature display.

Pressing INCREASE while holding down the SET key increases the oven settemperature, as indicated on the temperature display.

Pressing DECREASE while holding down the SET key decreases the oven settemperature, as indicated on the temperature display.

Pressing SET causes the display to show the set temperature. Used withINCREASE and DECREASE to change the set temperature. With MENU toaccess entry of a temperature display offset.


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The 3050 Series ovens maintain a set temperature until thatset temperature is changed. To set a temperature, performthe following:

1. Place the power switch in the ON position. All 8s willflash as a test of the display.

2. Press and hold the SET.

3. Observe the set temperature in the display window.

4. To decrease the set temperature, press DECREASEwhile holding SET.

5. To increase the set temperature, press INCREASEwhile holding SET.

6. When the desired set temperature is shown, releasethe INCREASE or DECREASE keys. Finally, releasethe SET key. The oven automatically begins to con-trol at the set temperature.

Safety Precautions This unit is not explosion proof. Do not use in the

presence of flammable or combustible materials;Fire or explosion may result. Unit contains compo-nents that may ignite such materials. Before operat-ing ovens, always observe the following safety pre-cautions:

Fumes and spillage from acidic solutions cause cor-rosion of the stainless steel chamber. Care shouldbe taken to maintain a neutral PH at all times.

The heater for the unit is in the bottom of the unit.Surface temperatures at the bottom cover of the unitmay be higher than set point temperature. For

example: A plastic container on the heater covermay become hot enough to melt/burn the containerat settings below the melting point of plastic. Do notplace items on the heater cover.

Wear insulated gloves.

Use tongs.

Never stand in front of an open oven.

Use safety goggles.

Operation

NoteTo rapidly increase or decreasethe set temperature press andhold the appropriate arrow key.To slowly increment or decre-ment the set temperature onedegree at a time, press andimmediately release the arrowkey.


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Limit AlarmsThe 3050 Series controllers feature a deviation alarmwhich alerts the operator and and interrupts heater powerwhenever the actual oven temperature differs from theset temperature by more than 5C. The set limit is built into the controller and cannot be changed.

If the actual temperature exceeds the alarmlimit, the alarm indicator LED will light and thedisplay will indicate EEE.

The reference point for the alarm is the set tem-perature. Any change in the set temperature willcause a corresponding shift in the alarm temper-ature.

Example:If the set temperature is 150C, thealarm will trip at 155C. If the set temperature ischanged to 200C, the alarm will follow the settemperature and trip at 205C.

Changing the set temperature to a value morethan 5C below the present oven temperaturewill trip the alarm. Power is removed from theheaters when an alarm condition occurs.

Example: First experiment samples were beingsoaked at 160C. Experiment completed andoven reset to 140C. The oven immediatelygoes in to alarm once the set point is reset to140 from 160. The oven will stay in alarm untilthe oven temperature cools down to 144.9(140+5-.1).

OPERATION


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Display OffsetsThe 3050 Series controllers permit the operator to selecta display offset Offsets temperature. With a display offsetentered, the temperature displayed will be the actual oventemperature (measured at the control thermocouple) plusor minus the display offset selected. Functionally, the off-set feature permits the operator to measure and calibratesuch that the display will indicate the temperature at aspecific point or zone within the oven. To enter a displayoffset, carry out the following steps:

1. Press the MENU, the display will indicate CAL

2. To view the present offset value, press and holdthe SET key.

3. To change the display offset, press and hold theSET key. Press INCREASE or DECREASE untilthe display indicates the desired offset.

4. Release the SET key.

5. Press MENU once to return to normal tempera-ture control.

Examples:

1. The displayed temperature is the result of alge-braically adding the actual temperature to theoffset value. Thus, if an offset of -3 degrees isbeing used, a measured temperature of 50degrees will be displayed as 47 degrees.

2. A test is to be performed at 150C in the centerof the oven and temperature is critical. Place athermometer or thermocouple (calibrated) at thecritical point and set the oven to 150C andallow the oven to stabilize. The calibrated ther-mometer reads 151C. A display offset of 1 isentered. The immediate display reads 151. Theoven cools to 150C the display reads 150 andthe calibrated thermometer reads 150.

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OPERATION


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The following sections describe procedures for servicingthe 3050 Series ovens. The first procedure, Replacing theDoor Gasket, may be performed by most users. However,all other service procedures involve potential exposure toline voltage. These procedures should be undertaken onlyby qualified service personnel. The second section,Accessing the Electronics Compartment, describes proce-dures required for subsequent service sections and is ref-erenced by these later sections when required.

In the event service is required beyond that available by

the customer, or for warranty service, contact the cus-tomer service dept. at 1-800-553-0039

Replacing the Door GasketThe Precision 3050 Series ovens incorporate a durable,silicone door gasket to minimize heat loss. Should thegasket become defective or be damaged, it may bereplaced by following the procedures below.

1. Set the power switch to off position and openchamber door.

2. Open door fully. Carefully remove and retain hardware from door hinges (case side). Laydoor on a flat surface with the handle over theedge.

3. Note the joint position of the old gasket. This iswhere the new gasket installation will start.

NOTE: Study the method of door gasket attachment before starting disassembly. This understanding will avoid confusion later in this process.

4. Bend back the old door gasket and remove thePhillips head screws attaching the gasket.

5. Remove the old door gasket.

6. Loosely install two screws through the stainlesssteel liner and into the door wrap to align thesepieces.

7. Begin installing the replacement gasket at the joint position of the old gasket. Stretch thereplacement gasket around the corners of the

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Service

CautionService procedures requiringaccess to the electronics compart-ment involve exposure to line volt-age and should be done only byqualified service personnel.Disconnect oven from powersource before attempting repairs.

CautionAllow oven to cool to ambient temper-ature before attempting repair.

CautionOnly factory authorized compo-nents should be used for all repairs.Failure to use factory authorizedreplacement components will voidwarranty and could result in unitmalfunction and or hazardous oper-ating conditions.


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liner to avoid bunching up of the gasket materi-al.

8. Install a Phillips head screw as the gasketrounds each corner to keep the gasket properlystretched. (The screw goes through the liner,pierces the gasket and threads into the doorwrap.)

9. After all four corners are secured, install theremainder of the Phillips head screws. Make

sure there is no gap at the gasket joint; stretchthe gasket slightly if necessary.

10. Reinstall the door onto the case with hinges.

Replacing the Door HandleTo replace a defective door handle, perform the stepsbelow: NOTE: See caution above.

1. Remove the two mounting screws holding latchcover in place.

2. Remove the two mounting screws holdingdefective handle in place.

3. Mount the replacement handle using twoscrews.

4. Adjust bottom nut (13/16) from end of shaft.

5. Secure latch cover in place with two screws.

Adjusting the Door CamDue to handling in shipment or to heat distortion with use,the door cam may require adjustment. To facilitate properclosing and sealing of door, steps 1 through 6 may haveto be performed concurrently.To adjust the door cam, perform the following:

1. Open door and remove screws holding latchcover in place.

2. Locate nuts securing tongue on cam shaft.

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S ERVICE

CautionAllow oven to cool to ambient tempera-ture before attempting repair.


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3. Loosen but do not remove outside nut.

4. Adjust inside nut, one full turn clockwise drawsdoor 1/16 closer to cabinet when door isclosed.

5. Secure cam tongue in place by tightening out-side nut.

6. Secure latch cover in place with two screws.

Accessing the ElectronicsCompartmentTo access the electronics compartment, proceed as fol-lows: (See sketch on next page.)

1. Disconnect power cord from the electrical outlet.

2. Open the chamber door. Carefully remove and retain hardware from door hinges (case side).Set door aside.

3. Slide the oven forward until the front of thebezel (control panel) is at least three inchesfrom the edge of the bench top (or the oven feetare at the edge of the bench).

4. Prop up the oven front by placing a shim undereach front foot. Use shims between one andone-half and two inches in thickness.

5. Remove the screws securing bezel from bottomof oven.

6. Slide the oven back on the table plus a fewinches (to set the bezel on the bench) androtate the bottom of the bezel out from the oven.The top clips will come loose but the wiring willstill be connected.

7. Carefully set the bezel on the bench.

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S ERVICE

CautionService procedures requiring access tothe electronics compartment involveexposure to line voltage and should bedone only by qualified service person-nel. Disconnect oven from powersource before attempting repairs.


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Replacing the HeaterTo replace a defective heater, proceed as follows:

1. Disconnect power cord from the electrical outlet.

2. Remove the two screws that secure the heatercover. Remove the cover by lifting and sliding itforward. It may be necessary to use a flat-bladescrewdriver to assist in lifting the cover upward.Set heater cover aside.

3. Remove the two nuts and shake proof washerssecuring the heater leads, then pull the lead ter-minals off the heater studs.

4. Remove the two screws securing heater to cabi-net. Slide heater forward to disengage backheater clips, lift back of heater up, then slide

heater back and lift out.

5. Install replacement heater and reassemble ovenby generally reversing the steps above.

S ERVICE

Heater

Electronics Compartment (Open)

Bezel/Control Panel

Heater Cover

Front Face

Fascia

Bezel

Bottom Screws




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Replacing the Cooling FanTo replace a defective cooling fan, proceed as follows:

1. Complete the procedures discussed inAccessing the Electronics Compartment .

2. Remove the two fan power wires from push-onterminals located on fan housing.

3. Remove the three mounting screws holding thefan in place.

4. Install replacement fan and reassemble oven bygenerally reversing the steps above.

Replacing the Circulating FanMotorTo replace a defective circulating fan motor, proceed asfollows:

1. Complete the procedures discussed in

Accessing the Electronics Compartment andReplacing the Heater steps 1 & 2 (remove theheater cover). Note and observe all Cautionstatements.

2. Using an Allen wrench, loosen set-screw holdingthe fan blade onto the motor shaft. Observe theshaft has a flat side to prevent the set-screwfrom turning on the shaft.

3. Locate the two electrical leads from the fanmotor. Remove the leads from the push-on ter-minal strip located in the front of the oven bezel.

4. Lay the oven on its back with the oven bottomfacing forward.

5. Detach the controller housing (oven bottom) byremoving the eight screws which fasten it to thecabinet. Two screws are located on each side ofthe oven and four on the bottom of the oven.

6. Locate the two access holes for the motor

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S ERVICE

NoteWhen installing the replacement fan,make certain air flow arrow moldedinto fan housing points into the ovenchassis.

CautionSheet metal in this area is sharp.Work carefully.


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mounting nuts located in the oven floor, in frontof and in back of the motor shaft.

7. Push an 11/32-in nut driver through the frontaccess hole, gently pushing aside the oveninsulation until the nut driver reaches the frontmotor mounting nut.

8. Remove front nut and washer, then repeatprocess using back access hole to remove backmotor mounting nut and washer.

9. Remove the fan motor by sliding it out.

10. Install replacement fan motor by generallyreversing the steps above.

Replacing the ControllerTo replace a defective controller, proceed as follows:

1. Complete the procedures discussed inAccessing the Electronics Compartment.

2. Locate terminal blocks on controller, remove allwires connected to controller. Note color andlocation of wires.

3. Remove four screws that hold controller tobezel, then remove old controller.

4. Install new replacement controller and reattachwires previously removed.

5. Check wiring connections against schematic,making sure that the line power wire is attachedto the proper terminal, i.e., 120V or 240V.

6. Check switch DS1 setting: If forced air, setswitch A to ON, otherwise; set to OFF for gravi-ty. Switch B should always be OFF.

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S ERVICE




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Replacing the Solid State RelayTo replace a defective solid state relay, proceed as fol-lows:


2. Consult the schematic and locate the solid staterelay (mounted on bezel).

3. Remove four lead wires from their screw-down

terminals.

4. Remove two Phillips screws which mount thesolid state relay to the bezel.

5. Lift out the solid state relay. Put new solid staterelay in place, making certain that the thin, con-ductive pad remains between the solid staterelay and the bezel.

6. Generally reverse the steps above to re-assem-ble oven.

Replacing the Safety RelayTo replace a defective safety relay, proceed as follows:


2. Consult the schematic and locate the safetyrelay (mounted on bezel).

3. Remove four lead wires from their push-on ter-minals.

4. Remove two Phillips screws which mount thesafety relay to the bezel.

5. Lift out the safety relay.

6. Generally reverse the steps above to install thereplacement safety relay and re-assemble oven.

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S ERVICE




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Replacing the ControlThermocoupleTo replace a defective control thermocouple, proceed as fol-lows:

1. Complete the procedures discussed in Accessingthe Electronics Compartment, observing allCaution statements.

2. Remove thermocouple wires from the controller 6

terminal connector by loosening the two screws.

2. On roof of oven, locate the clip, which holds ther-mocouple in place. Remove thermocouple fromclip.

3. Pull thermocouple forward into oven chamber,exposing roughly a 6-inch section of the thermo-couple wire.

4. Cut the thermocouple wire to remove the thermo-couple sheath.

5. Securely loop together the cut end of the defectivethermocouple with the two leads of the replace-ment thermocouple. Wrap tape over the length ofthe loops to secure them.

6. Gently pull the defective thermocouple out throughthe electronics compartment while guiding (fish-ing) the replacement thermocouple into place.

7. Consult schematic at end of this manual. Then,generally reverse steps 1 through 3 to completeinstallation of new thermocouple and reassembleoven.

S ERVICE



CautionVerify the yellow thermocouple conduc-tor is under the (+) tab and the redthermocouple conductor is under the

(-) tab.


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Replacements for oven parts may be ordered, by part number, from CustomerService at 1-800-553-0039.

Item Part Number (ref)Line Cord and Plug

OV700, OV701, OV702 (120 V) CRX121OV700, OV701, OV701 (240V Intl) CRX123OV700, OV701, OV701 (240V China) CRX117

Temperature Controller (120 V / 240 V) PCX132Thermocouple Assembly SPN 95603Cooling Fan

120 V FAX39240 V FAX40

Circulating Fan Motor120 V SPN 95788240 V SPN 95789

Door Handle SPN 104976Shelf Kit (Fits All Ovens) 13-247SHeater Assembly

OV700F, OV700G (120 V) SPN 95695 (HTR)OV700F, OV700G (240 V) SPN 95736OV701F, OV701G, OV702F, OV702G (120 V) SPN 95696OV701F, OV701G, OV702F, OV702G (240 V) SPN 95737

Door GasketOV700 SPN 101908OV701 SPN 101909OV702 SPN 101910

Door Gasket Gray Silicon Optional High TempOV700 SPN 95782OV701 SPN 95783OV702 SPN 95784

Solid State Relay SPN 83917 (SSR)Safety Relay

OV700, OV701, OV702 (120 V) SPN 95770 (K1)OV700, OV701, OV702 (240 V) SPN 95787

Circuit Breaker Single Pole (120 V) SPN 95765 (S1)Double Pole (240 V) SPN 95786Door Assembly

OV700 (Small) DR2034X8OV701(Medium) DR2033X8OV702 (Large) DR2032X8

Replacement PartsNoteOnly factory authorized components should be used for repair.


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Schematic


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THERMO SCIENTIFIC STANDARD PRODUCT WARRANTY

The Warranty Period starts two weeks from the date your equipment is shipped from ourfacility. This allows for shipping time so the warranty will go into effect at approximately thesame time your equipment is delivered. The warranty protection extends to any subsequentowner during the first year warranty period.

During the first year component parts proven to be non-conforming in materials or workman-

ship will be repaired or replaced at Thermos expense, labor included. Installation and cali-bration are not covered by this warranty agreement. The Technical Services Departmentmust be contacted for warranty determination and direction prior to performance of anyrepairs. Expendable items, glass, filters and gaskets are excluded from this warranty.

Replacement or repair of components parts or equipment under this warranty shall notextend the warranty to either the equipment or to the component part beyond the originalwarranty period. The Technical Services Department must give prior approval for return ofany components or equipment. At Thermos option, all non-conforming parts must bereturned to Thermo Scientific postage paid and replacement parts are shipped FOB destina-tion.

THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES,WHETHER WRITTEN, ORAL OR IMPLIED. NO WARRANTIES OF MERCHANTABILITYOR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.Thermo shall not be liable for any indirect or consequential damages including, without limi-tation, damages relating to lost profits or loss of products.

Your local Thermo Sales Office is ready to help with comprehensive site preparation infor-mation before your equipment arrives. Printed instruction manuals carefully detail equipmentinstallation, operation and preventive maintenance.

If equipment service is required, please call your Technical Services Department at 1-800-553-0039 (USA and Canada) or 1-563-556-2241. Were ready to answer your questions onequipment warranty, operation, maintenance, service and special application. Outside theUSA, contact your local distributor for warranty information.


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THERMO SCIENTIFIC INTERNATIONAL DEALERWARRANTY

The Warranty Period starts two months from the date your equipment is shipped from ourfacility. This allows for shipping time so the warranty will go into effect at approximately thesame time your equipment is delivered. The warranty protection extends to any subsequentowner during the first year warranty period. Dealers who stock our equipment are allowedan additional six months for delivery and installation, provided the warranty card is complet-ed and returned to the Technical Services Department.

During the first year component parts proven to be non-conforming in materials or workman-ship will be repaired or replaced at Thermos expense, labor excluded. Installation and cali-bration are not covered by this warranty agreement. The Technical Services Departmentmust be contacted for warranty determination and direction prior to performance of anyrepairs. Expendable items, glass, filters and gaskets are excluded from this warranty.

Replacement or repair of components parts or equipment under this warranty shall notextend the warranty to either the equipment or to the component part beyond the original

warranty period. The Technical Services Department must give prior approval for return ofany components or equipment. At Thermos option, all non-conforming parts must bereturned to Thermo postage paid and replacement parts are shipped FOB destination.

THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES,WHETHER WRITTEN, ORAL OR IMPLIED. NO WARRANTIES OF MERCHANTABILITYOR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.Thermo shall not be liable for any indirect or consequential damages including, without limi-tation, damages relating to lost profits or loss of products.

Your local Thermo Sales Office is ready to help with comprehensive site preparation infor-

mation before your equipment arrives. Printed instruction manuals carefully detail equipmentinstallation, operation and preventive maintenance.

If equipment service is required, please call your Technical Services Department at 1-800-553-0039 (USA and Canada) or 1-563-556-2241. Were ready to answer your questions onequipment warranty, operation, maintenance, service and special application. Outside theUSA, contact your local distributor for warranty information.


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Thermo Scientific2555 Kerper Blvd.Dubuque, IA 52001United States

www.thermo.com

MUFLA Serie 3050 Thermo Scientific

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