XBF40-MD Series Blast Freezers [EN]
Contents
1. Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 21 Service Section of Manual Not Intended for User Appendix 11 Appendix CAUTION No user serviceable components inside unit All service work must be performed by properly trained and equipped refrigeration electronic service technician 11 1 Theory Of XBF40 MD is a 40C single stage refrigeration system with a Dixell Operation controller Although it has some unique features due to the blast freezing application the basic operation of the unit is similar to any other low temperature forced air freezer The compressor is a hermetic reciprocating design with a remote mounted run capacitor start capacitor and start relay Waste heat from the compressor discharge line is used to evaporate condensate water produced during the defrost cycle The condenser fan runs continuously regardless of compressor status in order to provide condenser cooling during the off cycle and reduce the compressor starting load To ensure rapid load sensing and high heat transfer the evaporator fan runs near continuously only stopping for defrost and door openings When running the fan forces cold air from the evaporator coil into the front part of the cabinet where it is directed downwards over the load before being pulled under the internal cabinet wall and directed up the rear of the unit to be cooled and distributed again If the cabine2. 1 After all the components and tubing has been brazed closed pressurize the system with nitrogen to 150 psig and check all the joints using a leak soap mixture if not leaks are detected purge the nitrogen from the system and wipe the joints to remove the soap film You now can now start the triple evacuation procedure as explained in the next steps EVACUATION 2 The gauge manifold should be still attached to the process tubes remove the center hose from the nitrogen tank manifold and install an electronic micron meter in line with the center hose from the manifold gauge and the vacuum pump 3 Triple Evacuation Procedure 4 Perform a triple evacuation procedure as described evacuating the system until the electronic vacuum gauge read 1500 microns then break the micron level with about 5 psig of dry nitrogen and let it set for 5 minutes Purge the 5 pisg of nitrogen back to 1 psig and then start the vacuum pump again allow the system to evacuate until the electronic micron gauge reads 500 microns follow the same procedure of breaking the evacuation with nitrogen back to 5 psig Bleed the nitrogen back to 1 psig and turn on the vacuum pump again until the electronic vacuum gauge reads 50 microns or lower 5 Close the vacuum pump inlet valve leaving the pump running and watch the electronic micron gauge carefully Note The vacuum gauge must be installed between the compressor and the pump shut off valve to perform this
3. 21 Changing the Auto Defrost Cycle 21 dE 23 Theory dec nao eer tern aaa 23 Refrigeration Circuit Diagram for Flushing Evacuation and Troubleshooting 25 Troubleshooting 28 Repairine Leaks n sehen uto v tuendi 31 Compressor Replacement 32 230V AC Chassis Power Wiring Diagram 37 12VDC Control Power Wiring Diagram 39 Service Parts een 40 Dixell Control Parameter and Defaults Factory Default Settings in tnter et eee da t He Eae qd 42 1 Specifications 1 1 Dimensions Height Width Depth Weight 1 2 Power Requirements Voltage Frequency Amperage Specifications Interior 51 23 in 130 1 cm Exterior 78 in 196 cm Interior 34 in 85 cm Exterior 43 7 in 111 cm Interior Cabinet 28 22 in 71 1 cm Interior Freeze Area 14 5 in 36 8 cm Exterior 38 4 in 96 cm 732 lbs 332 kg 208 230V Unit will not operate outside specified voltage range 60Hz only Minimum 20A NEMA receptacle required 6 20R Dedicated circuit required for proper operation 1 3 Environmental Operating Conditions Pollution Degree 2 Installation Category II Altitude 2000m MSL mean sea level Humidity max 60 in ambient up to 32 C 90 F Voltag
4. Poor gasket seal 1 Check and replace door gasket or System undercharged 2 Check operating pressures If low System overcharged 3 Check operating pressures Non condensable gas air in system 4 Check operating pressures Worn or inefficient compressor 5 Replace Compressor Defective temperature sensor or control 6 Replace sensor or check control settings programming adjust door alignment shut down warm up overnight and check for refrigerant leak discharge will be high and suction pressure low Recover charge evacuate and recharge 11 4 Repairing Leaks Copper tubing joints are made using Phos Copper solder which is a high temperature brazing allow needing no flux and with good working characteristics Leaks in these joints are usually caused by copper to copper or copper to steel contact rubbing which can cause a hole in the copper tubing Leaks occurring in components such as pressure controls or valves usually must be dealt with by replacing the offending component Whenever a system has been opened for repair it must be evacuated to a very low vacuum 50 microns or lower and the drier must be replaced Always replace the drier with the same BRAND AND SIZE as originally supplied EVACUATION A refrigeration systems worst enemy is air in the system because all air contains moisture Moisture in a refrigeration system will mix with the oil which has refrigerants in it and with the
5. 2 Remove the compressor mounting bolts 3 Remove the cover from the electrical junction box on the side of the compressor Label and disconnect the power leads 4 Remove the compressor from of the machine compartment 5 Test a sample of the compressor oil If non acidic no backflush would be required If there is an acid condition see BACKFLUSH PROCEDURE and follow the procedure to backflush the evaporator condenser and all of the tubing the compressor accumulators expansion tanks TXV and tubing that cannot be flushed MUST be replaced INSTALL THE NEW COMPRESSOR may only be installed by qualified refrigeration technicians Also while i CAUTION Replacement compressors are pressurized with nitrogen and brazing in the replacement components a very low purge of dry nitrogen must be applied to reduce oxidation from occurring during the brazing procedure Purge the nitrogen through the system or components during brazing and allow it to vent from the open port through the manifold Thermo Scientific XBF40 MD Series Blast Freezers Mount compressor on base and reinstall rubber feet and bolts Braze the suction and discharge tubing to the new compressor Also install any of the other components that may have been replaced if there was an acid condition Install process tube fittings to the end of the process tubes for evacuation and recharging Installation Operation and Service Manual 33 Appendix CHECK FOR LEAKS
6. Part of Thermo Fisher Scientific XBF40 MD Series Blast Freezers Model Number XBF40D MD Installation Operation and Service 325334H01 Rev D August 2014 Visit us online to register your warranty www thermoscientific com labwarranty SCIENTIFIC IMPORTANT Read this instruction manual Failure to follow the instructions in this manual can result in damage to the unit injury to operating personnel and poor equipment performance CAUTION All internal adjustments and maintenance must be performed by qualified service personnel Material in this manual is for informational purposes only The contents and the product it describes are subject to change without notice Thermo Fisher Scientific makes no representations or warranties with respect to this manual In no event shall Thermo be held liable for any damages direct or incidental arising from or related to the use of this manual 2014 Thermo Fisher Scientific Inc All rights reserved Intended Use of the XBF40 MD Refrigeration System The XBF40 MD described in this manual is a high performance unit which can be used for research and in situations that directly support medical applications When the XBF40 MD is used to support a medical application it is an accessory to a medical device and is therefore considered as a medical device in its own right by the regulatory body e g FDA This product is intended for use Asarapid freezer in research use Asa medi
7. keep the packing materials and immediately report the damage to the carrier Do not return goods without written authorization When submitting a claim for shipping damage request that the carrier inspect the shipping container and equipment Refer to the drawing on the next page for instructions on removing the freezer from the pallet CAUTION This freezer is heavy be sure you have enough personnel moving the freezer to prevent tipping Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 3 Unpacking RAMP BOARDS WITH SLOTTED END INSTRUCTIONS 1 REMOVE AND DISCARD THE SHIPPING PLASTIC 2 CAREFULLY REMOVE AND DISCARD THE PLYWOOD KICK PLATES ATTACHED TO THE PALLET 3 CAREFULLY REMOVE AND DISCARD THE CARDBOARD SHIPPING BUMPERS AND CORNERS 4 USING A 1 2 1 3 cm WRENCH REMOVE ALL SCREWS SECURING THE SHIPPING BRACKETS TO THE PALLET 5 DISCARD ALL SHIPPING BRACKETS 6 REMOVE THE RAMP BOARDS FROM THE SHIPPING PALLET WITH PHILLIPS SCREW DRIVER AND LOCATE THE SLOTTED END OVER THE RAMP BRACKET WITH THE SUPPORT BLOCKS ON UNDERSIDE 7 ALIGN THE CASTERS WITH THE RAMP BOARDS 8 BE SURE TO USE ENOUGH PERSONNEL TO ROLL 4 Installation Operation and Service Manual LAG SCREWS SHIPPING BRACKET PALLET SHIPPING RAMP BRACKET Thermo Scientific XBF40 MD Series Blast Freezers 4 Installation A 4 1 Location A A 4 2 Leveling A 4
8. Continuous cycle is running ON Measurement unit c F Flashing Programming phase Installation Operation and Service Manual 19 Quick Start Guide 10 5 Alarm Signals MESSAGE CAUSE Cabinet probe failure P2 Evaporator prove failure H2 Maximum temperature alarm LA Minimum temperature alarm dA Door open rtc Real time clock alarm rtF Real time clock board failure 10 6 Silencing Audible The audible alarm can be silenced by pressing any key Alarm 10 7 Setting the Real Time Clock 1 When the device is switched ON it s necessary to program the time and day 2 Enter the PRI programming menu by pushing the SET DOWN arrow keys for 3 seconds 3 The rtc parameter is displayed Push the SET key to enter the real time clock menu 4 The Hur hour is displayed 5 Push the SET key and set current hour by the UP and DOWN arrow keys then push SET to confirm the value 6 Repeat the same operations on the Min minutes and dAY day parameters 7 To exit Push the SET UP arrow keys or wait 15 seconds without pushing any keys 10 8 Manually Engage a Push and hold the DEF key for more than 2 seconds and a manual defrost Defrost Cycle will start 20 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Quick Start Guide 10 9 Changing the Set Point 1 Push and
9. Evaporator probe cali Probes oE bration 0 12 12 Third probe Probes P3P presence no Third probe Probes o3 calibration 0 12 12 C Fourth probe Probes P4P presence no Fourth probe Probes 04 calibration 0 12 12 C Outputs delay at start Regulation odS up 1 0 255 Minutes Anti short Regulation AC cycle delay 5 0 50 Minutes Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 43 Appendix Table 4 Dixell Control Parameter and Defaults P1 P2 per centage for Regulation rtr regulation 100 0 100 Continuous cycle dura Regulation CCt tion 0 00 Hours Set point for continuous Regulation CCS cycle 0 100 150 C Compressor ON time with faulty Regulation Con probe 255 0 255 Minutes Compressor OFF time with faulty Regulation CoF probe 0 0 255 Minutes Temperature Regulation CF measurement unit C Regulation rES Resolution in Regulation Lod Probe displayed P1 Regulation rEd X REP display P1 Display Regulation dLy temperature delay 0 00 Minutes P1 P2 percentage Regulation dtr for display 99 1 99 Defrost EdF Defrost mode rtC Defrost tdF Defrost type EL Probe selection Defrost dFP for first defrost P2 Probe selection Defrost dSP for second defrost P2 Defrost termination temperature first Defrost dtE defrost 10 55 50 C Defrost termination temperature Defrost dtS second d
10. Frame 325257H01 Thermostatic Expansion Valve 77037H01 Fan Motor 77039H02 Fan Blade Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 41 Appendix 42 Installation Operation and Service Manual Table 3 Service Parts List Part Number Description 314226H01 Filter Dryer bracket 86416H06 Filter Dryer clamp 80945H01 Accumulator bracket 325251H01 Cabinet Spill Plate 325407G01 WELD ASSEMBLY DUMMY DOOR BLAST FREEZER 325252H01 Shelves 326113H01 Dixell Controller Hot Key 326659H01 HARNESS PLUG TO SWITCH 326660H01 HARNESS CONTROL HARNESS 326661H01 HARNESS DIXELL CONTROL HARNESS 326703H01 HARNESS SWITCH TO TSTRIPE amp CONNECTOR 326707H01 Harness solenoid heater relay 325504H01 Power Cord 315096H04 OUTER GASKET OUTER DOOR 315096H09 INNER GASKET OUTER DOOR Thermo Scientific XBF40 MD Series Blast Freezers 11 9 Dixell Appendix Control Parameter and Defaults Factory Default Settings Table 4 Dixell Control Parameter and Defaults Group Parameter Description Factory Minimum Maximum Unit Default Access to Other rtC clock menu Regulation Hy Differential 4 1 25 C Minimum set Regulation LS point 40 100 40 C Maximum Regulation US set point 30 40 150 C Thermostat probe cali Probes ot bration 0 12 12 Evaporator probe pres Probes P2P ence yes
11. IF YOU NEED ASSISTANCE Thermo Scientific products are backed by a global technical support team ready to support your applications We also offer cold storage accessories including remote alarms temperature recorders and validation services Visit www thermoscientific com or call North America Germany 1 866 984 3766 Sales 866 9 THERMO Sales 08001 536 376 India Italy Sales 91 22 6716 2200 Sales eren China Netherlands Sales 8621 68654588 Sales 31 76 571 4440 Japan Nordic Baltic Sales 81 3 3816 3355 Sales 358 9 329 100 Australia Russia CIS Sales 1 300 735 292 Sales 7 812 703 42 15 Austria Spain Portugal Sales 43 1 801 400 Sales 34 93 223 09 18 Belgium Switzerland Sales 32 2 482 30 30 Sales 41 44 454 12 12 France UK Ireland Sales 33 2 2803 2180 Sales 44 870 609 9203 Thermo Fisher Scientific Inc 275 Aiken Road Asheville NC 28804 United States www thermofisher com 325334H01 Rev D
12. LITER OF WATER DOWN CENTRAL DRAIN BEFORE DETAIL A STARTING THE UNIT Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 9 Operation 10 5 3 Loading 5 4 Operation A 5 5 Adjusting Shelves To achieve optimum performance the unit should be loaded when the display reads 30 C or colder typically within 60 minutes of initial startup The maximum rated load is 90 Liters of room temperature fluid Do not load the unit with product that is warmer than 32 C The maximum load that can be placed on any shelf is 45 kg evenly distributed Do not overload shelves The maximum load that can be placed in each removable white basket is 10kg Do not exceed the rated load of the basket The white baskets are designed to hold 6 500ml bags per basket 3 in the front row and 3 in the back row Each shelf holds 2 baskets side by side When loading the unit only open the inner door you need to open for shelf access Do not leave the door open longer than necessary Do not load during timed or manual defrost modes Do not attempt to move the unit while it is loaded The shifting weight inside a loaded unit can cause damage or injury Depending on product load temperature and duration of door opening it is normal for the temperature display to show warm up after initial product load The unit can be safely loaded at any time the unit is displaying a temperature of 30C or below
13. SYMBOLS DESIGNATIONS AND DRAWING METHODS ENGW 002 GENERAL gt Installation Operation and Service Manual Appendix 25 Appendix This page is intentionally left blank 26 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix Figure 1 Manafold connections for Vacuum pump and Electronic Micron Gauge Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 27 Appendix 11 3 Troubleshooting CAUTION Only certified Refrigeration or Electronic Technicians should service the system Note Before attempting to troubleshoot the unit perform the following checks Correct what is found wrong and re evaluate the unit before continuing Before troubleshooting verify that the main power is supplied to the freezer Table 2 Troubleshooting Procedures SYMPTOM POSSIBLE CAUSE TEST AND CORRECTION Cabinet temperature colder 1 than Control Setpoint Control programmed incorrectly Inoperative control Temperature sensor defective 1 Reprogram 2 Measure voltage on back of controller on Pins amp 3 Replace control if necessary 3 Replace sensor Displayed temperature does not 1 match freezer temperature Needs calibration Defective sensor 1 Recalibrate controller as specified in procedure 2 Replace Frost build up on breaker strip 1 Gasket not sealing proper
14. added compressor heat it will or can cause an acid condition within the system This acid will cause the compressor to eventually to fail It is quite simple to purge air from a system but eliminating moisture is more difficult There has always been a tendency with technicians to open a system and not replace the drier after doing so Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 31 Appendix 32 Installation Operation and Service Manual 11 5 Compressor Replacement Note The filter drier must ALWAYS be replaced whenever the refrigeration system has been opened to atmosphere THE VACUUM PUMP When evacuating a system there is an initial flow of gases and moisture toward the vacuum pump but as the vacuum becomes deeper it is recommended to perform a triple evacuation to ensure that as much as possible moisture is removed For this reason a means of speeding up the evacuation process called triple evacuation is required See EVACUATION PROCEDURE Always start the vacuum pump procedure with new clean oil and should change it during after the first deep evacuation while the oil is still hot and after each evacuation job because it becomes contaminated during the process of evacuation If the pump oil is contaminated it will be apparent that the pump s capability to achieve a good deep vacuum will be compromised Also remember that moisture in the pump oil is a mortal enemy of the fin
15. di Thermo Fisher Scientific con queste Direttive l elenco delle ditte di riciclaggio nel Vostro paese e informazioni sui prodotti Thermo Scientific che possono essere utili alla rilevazione di sostanze soggette alla Direttiva RoHS sono disponibili sul sito www thermo com Conformit weee Ce produit doit tre conforme la directive euro p enne 2002 96EC des D chets d Equipements Electriques et Electroniques DEEE Il est marqu par le symbole suivant Thermo Fisher Scientific s est associ avec une ou plusieurs compagnies de recyclage dans chaque tat membre de l union europ enne et ce produit devrait tre collect ou recycl par celles ci Davantage d informations sur laconformit de Thermo Fisher Scientific ces directives les recycleurs dans votre pays et les informations sur les produits Thermo Fisher Scientific qui peuvent aider le d tection des substances sujettes la directive RoHS sont disponibles sur www thermo com Great Britain 129 Deutschland 129 Italia 129 gt Important For your future reference and when contacting the factory please have the following information readily available Model Number Serial Number Date Purchased The above information can be found on the dataplate attached to the equipment If available please provide the date purchased the source of purchase manufacturer or specific agent rep organization and purchase order number
16. more frequent defrost may be necessary depending on room ambient humidity and frequency of door opening Defrost the freezer manually once a week or whenever the interior frost interferes with use or temperature performance To defrost 1 Remove all products and place in a safe storage location 2 Turn off the unit and open all outer and inner doors 3 Wipe inner and outer doors with a dry soft cloth to prevent condensation 4 Wipe the inner doors to minimize water dropping onto the floor 5 Let the freezer stand open until the ice and frost buildup has melted If desired a fan can be directed at the unit to accelerate the defrost 6 Dispose of any pieces of ice and wipe out any water standing in the bottom of the cabinet and on the inner doors 7 Close all the doors and restart the freezer CAUTION When defrosting your freezer never use sharp or heavy tools such as chisels or scrapers Damage to the equipment can result Let the ice melt enough so that it can be easily removed Wear protective gloves when cleaning the interior Thermo Scientific XBF40 MD Series Blast Freezers Maintenance If there is freezer odor wash the interior with a solution of baking soda and warm water Clean the exterior with any common household cleaning solution 6 5 Drain Maintenance Itis normal for water to collect at the bottom of the cabinet after a defrost cycle When the water rises above the drain level the water drains either to a heat
17. power The compressor is activated by a large 12VDC contactor that is located inside the relay enclosure The evaporator fan and defrost heaters are controlled by two smaller 12VDC relays located on the outer surface of the relay enclosure Both the contactor and relays are switching 230VAC that is driving the associated loads Refrigerant flow is managed by a thermostatic expansion valve TXV located in the evaporator enclosure which opens and closes in response to evaporator outlet temperature The TXV is adjustable but in normal operation adjustment should not be necessary A solenoid valve between the compressor discharge and suction lines is opened during defrost in order to provide a balanced pressure condition for compressor startup Due to refrigerant flow through this valve it is normal to hear a noticeable whistling noise from the refrigeration deck during the first few minutes of the defrost cycle The suction accumulator is equipped with an internal heat exchanger where the liquid refrigerant line is passed through the accumulator before being sent to the expansion device This subcools the liquid in order to increase system capacity while also heating the compressor suction stream to reduce the risk of liquid slugging In the event of a sensor failure or loss of communications with the evaporator or cabinet temperature probe the controller will display a fault alarm and switch to a modified running mode that permits continued usa
18. the unit to a suitable facility drain Ensure that the tube is not kinked or pinched and is protected from traffic and other potential sources of damage Keep the tube at least 4 inches below the top of the unit s machine compartment for the entirety of its run rising above this level will cause water to back up into the refrigerated compartment 6 Replace all side covers and grates 7 Start or restart the unit following instructions in Section 5 2 The unit can be returned to evaporative mode the installed drain line can be disabled by removing the tubing adapter and small tube In that case ensure that the end of the large tube is securely pointed towards the evaporator pan before replacing the side panel 4 6 Final Checks Before start up complete the following steps 1 Make sure that the unit is free of all wood or cardboard shipping materials both inside and outside 2 Verify that the unit is connected to a dedicated circuit as per the data plate voltage requirements Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 7 Operation 5 Operation 5 1 Temperature factory default temperature setting is 40 C Settings CAUTION The freezers described in this manual are designed for optimum performance at 40 C This set point can be changed but efficiency and effectiveness may be compromised It is advisable to call Technical Service before changing set points To ch
19. 3 Wiring Installation CAUTION Improper operation of the equipment could result in dangerous conditions Follow all instructions and operate within design limits noted on the data plate Install the unit in a level area free from vibration with a minimum of eight inches 20 cm of space on the top and sides and six inches 15 cm in back CAUTION Do not position the unit in a way that impedes access to the disconnecting device or circuit breaker in back of the unit Allow enough clearance so that the door can swing open at least 90 degrees The rear spacing posts provided with the freezer can be used to ensure proper clearance To install the spacing posts screw them into the back of the rear deck area Do not position the equipment in direct sunlight or near heating diffusers radiators or other sources of heat The ambient temperature range at the location must be 59 to 90 F 15 to 32 C CAUTION Do not attempt to operate the unit in ambient temperatures above 90 F 32 C The unit must be level If the unit is out of level you may need to shim the corners or casters with thin sheets of metal CAUTION The casters on this unit are provided for installation purposes only Be sure to set the brakes on the casters before use The unit should only be moved when it is empty of stored product Before connecting your freezer to a power source be sure to check the data plate for correct voltage Wiring diagrams are attached t
20. 5 Auxiliary ArP Probe selection for auxiliary relay P1 Auxiliary Sdd Auxiliary relay switched off during defrost no Alarm ALP Probe selection for temperature alarms P1 Alarm ALC Temperature alarms configuration Ab Alarm ALU Maximum temperature alarm 50 150 C Alarm ALL Minimum temperature alarm 100 10 C Alarm Alarm AFH ALd Differential for temperature alarm recovery Temperature alarm delay 25 255 C Minutes Alarm dAo Delay of temperature alarm at start up 2 00 Hours Alarm AP2 Probe selection for condenser temperature alarms nP Alarm AL2 Condenser low temperature alarm 100 150 Alarm AU2 Condenser high temperature alarm 100 150 Alarm AH2 Differ for condenser temp alarm recovery 25 Alarm Ad2 Condenser temperature alarm delay 255 Minutes 46 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Table 4 Dixell Control Parameter and Defaults Appendix Delay of condenser temper alarm at Alarm dA2 start up 1 30 Hours Compressor off for condenser low Alarm bLL temperature alarm no Compressor off for condenser high Alarm AC2 temperature alarm no Alarm relay switc
21. Procedures SYMPTOM POSSIBLE CAUSE TEST AND CORRECTION Unit runs but little or no refrigeration Run times are getting longer Loss of refrigerant Compressor will not pump Inoperative condenser fan Dirty insufficient air flow High room temperature Refrigerant leak Condenser fan blade is loose Excessive ice on or in evaporator Improper TXV settings 1 Check for the leak repair evacuate and recharge 2 Install low side gauge If running pressure is no lower than starting pressure replace compressor evacuate and recharge 3 Check for fan blade obstruction Replace fan motor if necessary 4 Remove Clean condenser filter ensure cabinet has a minimum of 6 clearance all around it Check for fan blade obstruction Replace fan motor if defective 5 Ensure room temperature is 90 F 32 2 C 6 See Leak Check and Charging procedures 7 Tighten fan blade 8 Check defrosts settings on the controller Defrosting required of the evaporator 9 Contact Service Support Displayed temperature does not match freezer temperature Needs calibration Defective sensor Recalibrate per specified procedure 2 Replace Sensor 30 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix Table 2 Troubleshooting Procedures SYMPTOM POSSIBLE CAUSE TEST AND CORRECTION Unit runs continuously 1
22. WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR IMPLIED NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY THERMO FISHER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT THERMO FISHER SHALL NOT BE LIABLE FOR ANY INDIRECT OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION DAMAGES TO LOST PROFITS OR LOSS OF PRODUCTS 16 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Warranty International 9 Warranty THERMO FISHER SCIENTIFIC FREEZER INTERNATIONAL International WARRANTY The Warranty Period starts two months from the date your equipment is shipped from our facility This allows for shipping time so the warranty will go into effect at approximately the same time your equipment is delivered The warranty protection extends to any subsequent owner during the warranty period Dealers who stock our equipment are allowed an additional four months for delivery and installation providing the warranty card is completed and returned to the Technical Services Department During the first 18 months of the warranty period component parts proven to be non conforming in materials or workmanship will be repaired or replaced at Thermo s expense labor excluded Installation and calibration is not covered by this warranty agreement The Technical Services Department must be contacted for warranty d
23. allation Operation and Service Manual 37 Appendix This page is intentionally left blank 38 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix 11 7 12VDC Control Power Wiring Diagram 6 5 4 3 2 1 E E 230VAC LINE VOLTAGE BL O BL O 12VDC POWER SUPPLY DIXELL CONTROLLER D 3 7 B W B W EVAPORATOR FAN RELAY COIL c c NOTES BY BM 1 SYMBOLS DESIGNATIONS AND GENERAL COMPRESSOR CONTACTOR COIL DRAWING METHODS ENGWIO02 2 LEGEND R RED B BLACK BL BLUE BROWN GR GRAY G GREEN B Y YELLOW W WHITE Q ORANGE P PURPLE RIB RIB T TAN WIRE TRACE DEFROST HEATER RELAY COIL A Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 39 Appendix This page is intentionally left blank 40 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix 11 8 Service Parts List Table 3 Service Parts List Part Number Description 325241G01 Compressor Service Kit 326193H01 Controller 325243H01 Evaporator 325259H01 Condenser 325428H01 Harness Ground 315707H12 Start Relay 315146H21 Start Capacitor 315146H11 Run Capacitor 315599H03 White board 325371H01 White board End Trim 325370H01 White Board Cover
24. and not in defrost mode Defrost will be initiated automatically on the schedule programmed in the controller Product may be left in the freezer if desired but the freezing time will be extended due to the defrost heat load If necessary a defrost cycle can be triggered at any time by holding the controller snowflake key for two seconds refer to the Quick Start Guide preceding the controller instructions The XBF40 MD comes standard with three 3 stainless steel shelves For safety during shipping the shelves are secured to the back panel with three 3 screws To adjust the height of the shelves be sure to remove the screws first The screws do not need to be reinstalled when the height is adjusted If the unit needs to be moved it is recommended to secure the shelves to the back panel of the unit using the screws provided Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Maintenance 6 Maintenance 6 1 Cleaning the Cabinet The interior and exterior of the cabinet should be cleaned every three months more often if necessary To clean the interior of the unit use a dilute bleach 10 bleach and 90 water or alcohol solution The shelves and baskets may be removed for easier cleaning Do not expose the surfaces to thinner acid or any other harsh solvent Rinse the shelves and wipe them dry with a soft cloth The exterior may be cleaned with any household cleaning wax 6 2 Cleani
25. ange the factory temperature settings refer to the Quick Start Guide preceding the controller instructions 5 2 Start Up start up the freezer complete the following steps 1 8 Installation Operation and Service Manual Plug in the power cord Before starting the unit pour a liter of water down the central drain as shown in the drawing on the next page The breaker switch is located at the bottom rear of the unit Switch it to the ON position The condenser fan will start immediately There is a time delay before the compressor will come on The delay is indicated by a flashing snowflake symbol on the display Set the onboard clock to local time following the instructions in the Quick Start Guide preceding the controller instructions Set defrost times to match your facility schedule following instructions in the Quick Start Guide preceding the controller instructions Defrost takes approximately 30 minutes Recommended maximum run time without a defrost is eight hours more frequent defrosts may be advisable depending on usage or ambient conditions Confirm that the snowflake and fan symbols are illuminated on the display and that the compressor and fans are running Note that the evaporator fan does not run when the main cabinet door is open Allow the unit to run unloaded for at least 60 minutes before adding any product Thermo Scientific XBF40 MD Series Blast Freezers Operation POUR 1
26. cal device for freezing samples for diagnostic use storage of samples not intended to be re introduced to the human body Asa medical device for freezing blood components for storage and eventual re introduction to the human body This Product is not intended for long term storage Registration This medical application is considered a Class II medical device by the FDA This product is classified as product code KSE864 9700 Table of Contents Table of Contents SPECUEICALI ONS e 1 DIMENSIONS oe asco acad 1 Power Requirements 1 Environmental Operating Conditions 1 Refrigerant Types and Charges 1 Safety PrecautiOMs vies ssscacsvccesssvnsssossecssosessonsessennsesneevvscnsvenesssns 2 2 q a 3 Installation 5 TOC ALONG 5 Levell er oaa masala D Si uha y ua en atus 5 WATTS Susa se t Uo ek ue 5 Door Seal 6 Installing a Drain Line Optional 7 Fi al CheeKSe m n aS aeri ANa TD ed taii ius 7 Operaatio usa ERE DU 8 Temperature Settings 8 Start UP Guia Sala a Usu cM m iU ELE 8 Lollius uu ames 10 OVS RAO
27. check The electronic vacuum gauge should not rise above 200 microns within a 20 minute blank Evacuate the system following the above procedure vacuum now should hold or meeting the 200 micron level discussed earlier If not then this indicates either moisture in the system or a leak in the tubing or components Check the system again for a leak by as described above and then repeat this process as many times as necessary to obtain the required vacuum and holding time BREAK THE VACUUM WITH REFRIGERANT AND CHARGING 6 Close the gauge manifold hand valves and the vacuum pump shut off valve Shut the pump off and change the center manifold hose to the service cylinder of the appropriate refrigerant Purge the center hose for 34 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix one or two seconds with gas from the service cylinder and then crack the refrigerant cylinder valve and the manifold discharge hand valve Gas will flow into the compressor crankcase Charge the system to the required data plate amount this can be done by weighing the cylinder Remove gauge manifold and seal the fittings that were installed in the service valve gauge ports Turn power on and begin the run test of the cabinet This completes the installation of a replacement compressor Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 35 Appendix Th
28. e Tolerance 10 Ambient Temperature 15 32 C 59 90 F Product Usage Indoor Use Only 1 4 Refrigerant Types and Charges R 404a 45 oz 1 275 kg Published interior volumes are nominal usable capacities may be offset by shelves carrying baskets blower coils or cabinet protrusions Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 1 Safety Precautions 2 Safety Precautions In this manual and on labels attached to this product the words WARNING and CAUTION mean the following WARNING A potentially hazardous situation which if not avoided could result in serious injury or death CAUTION A potentially hazardous situation which if not avoided may result in minor or moderate injury or damage to the equipment WARNING The electrical hazard symbol to the left indicates situations with dangerous voltages and a potential for electric shock Before installing using or maintaining this product please be sure to read this manual and product warning labels carefully Failure to follow these instructions may cause this product to malfunction which could result in injury or damage Below are important safety precautions that apply to this product Use this product only in the way described in the product literature and in this manual Before using it verify that this product is suitable for its intended use If the equipment is used in a manner not specified b
29. ed condensate pan or to an external drain line if one is installed refer to Section 4 5 After a defrost cycle you may remove excess water using paper towels and if desired disinfectant Do not allow solid material to enter the drain as this will clog the drain line To help keep the drain line clean 0 5L of a 10 bleach solution should be poured down the drain every 3 months Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 13 Troubleshooting 7 Troubleshooting WARNING Troubleshooting procedures involve working with high voltages which can cause injury or death Troubleshooting should only be performed by trained personnel This section is a guide to troubleshooting equipment problems Table 1 Troubleshooting Procedures Problem Cause Solution Unit does not operate display is blank Power supply Check that the cord is securely plugged in Plug another appliance into the outlet to see if it is live If the outlet is dead check the circuit breaker or fuses Breaker trips on startup Power supply Contact an electrician to confirm whether the outlet is providing suitable power for the unit Temperature fluctuates Controller Parameters Make sure that the control is set correctly Condenser Make sure the condenser is clean Unit warms up Door is open Make sure the door is completely closed Warm product recent
30. efrost 10 55 50 C 44 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Table 4 Dixell Control Parameter and Defaults Appendix Interval between Defrost idF defrost cycles 8 0 120 Hours Maximum length Defrost MdF for first defrost 30 0 255 Minutes Maximum length Defrost MdS for second defrost 30 0 255 Minutes Defrost dSd Start defrost delay 0 0 255 Minutes Displaying during Defrost dFd defrost rt Max display delay Defrost dAd after defrost 0 0 255 Minutes Defrost Draining time 5 0 255 Minutes First defrost after Defrost dPo start up no Defrost delay after Defrost dAF fast freezing 0 00 Hours Fan operating Fan FnC mode On Fan delay after Fan Fnd defrost 0 0 255 Minutes Differential of temperature for forced activation Fan FCt of fans 0 0 50 C Fan stop Fan FSt temperature 50 55 50 Fan time with Fan Fon compressor off 0 0 15 Minutes Fan off time with Fan FoF compressor off 0 0 15 Minutes Probe selection for Fan FAP fan P2 Kind of action for Auxiliary ACH auxiliary relay CL Set point for Auxiliary SAA auxiliary relay 100 100 150 Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 45 Appendix Table 4 Dixell Control Parameter and Defaults Auxiliary SHy Differential for auxiliary relay 2
31. ely machined surfaces inside the pump and which will affect the life and performance of the pump It is good practice to change the pump oil after each use using the dry oil recommended by the pump manufacturer The pump should be put away in a clean dry condition ready for the next job CAUTION The following repair procedures are to be performed by qualified refrigeration technicians only CAUTION Because cabinet temperatures affect refrigerant pressures never attempt to repair evacuate or charge a refrigeration system unless the freezer has been turned Off unplugged and left open for 24 hours 1 Proper tools and equipment must be on hand to make a trouble free compressor replacement Review the discussion covering the vacuum pump CAUTION Preventing the entrance of air to the refrigeration system and its resultant contamination is vital to the success of any repair procedure that involves opening the system Be sure to observe all current regulations prohibiting venting of refrigerants Thermo Scientific XBF40 MD Series Blast Freezers Appendix 2 Turn offall power to the freezer and unplug the power cord 3 Locate the compressor in the compressor deck 4 Attach the gauge manifold to the suction and discharge process tubes via saddle valves 5 Recover and dispose of the refrigerant charge in accordance with current regulations REMOVE THE COMPRESSOR 1 Cut Suction and Discharge lines to the failed compressor
32. etermination and direction prior to any work being performed Expendable items i e glass filters pilot lights light bulbs and door gaskets are excluded from this warranty Replacement or repair of component parts or equipment under this warranty shall not extend the warranty to either the equipment or to the component part beyond the original 18 month warranty period The Technical Services Department must give prior approval for the return of any components or equipment THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR IMPLIED NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY Thermo shall not be liable for any indirect or consequential damages including without limitation damages relating to lost profits or loss of products Your local Thermo Scientific Sales Office is ready to help with comprehensive site preparation information before your equipment arrives Printed instruction manuals carefully detail equipment installation operation and preventive maintenance If equipment service is required please contact your local Thermo Scientific office or local distributor We re ready to answer your questions on equipment warranty operation maintenance service and special applications Outside the USA contact your local Thermo Scientific office or distributor for warranty information Thermo Scientific XBF40 MD Series Blast Freezers Installation Operatio
33. ge with some features of the unit disabled A problem with the cabinet probe will cause the compressor to run constant on stopping only for defrosts A problem with the evaporator probe will cause defrosts to terminate based on time only Although continued short term usage is possible with either of these faults the resulting condition is less efficient than normal running and should be corrected as soon as possible Two tanks are connected to the compressor suction line through a capillary tube These tanks hold charge at initial startup and then gradually release it to the system once the compressor is running The purpose of this system is to reduce the starting load on the compressor once the system is running at temperature the tanks are effectively inert 24 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers 11 2 Refrigerati on Circuit Diagram for Flushing Evacuation and Troubleshooting EVAPORATOR 825243 1901 345041 01 2x EXPANSION TANKS 120 x 0 065 ID Capillary Tube COMPRESSOR 325241901 GAS DISCHARGE CONDENSATE PAN SUCTION ACCUMULATOR WITH INTEGRAL HEAT EXCHANGER 326244H01 FILTERIDRYER 186407H01 CONDENSER FAN 3323262 amp 77038H02 7 5 4 Thermo Scientific XBF40 MD Series Blast Freezers NOTES 1
34. hed off by Alarm tbA pushing a key yes Third relay Configuration oA3 configuration AUS Alarm AOP Alarm relay polarity CL Digital input 1 Digital inputs i1P polarity OP Digital input 1 Digital inputs HF configuration dor Digital input 2 Digital inputs i2P polarity CL Digital input 2 Digital inputs i2F configuration ES Digital input 2 alarm Digital inputs did delay 15 0 255 Minutes Digital inputs doA Door alarm delay 3 0 255 Minutes Number of activation of Digital inputs nPS pressure switch 0 0 15 Compress and fan status when open Digital inputs OdC door FAn Regulation restart with door open Alarm rrd alarm no Differential for Energy Saving HES Energy Saving 0 30 30 C Other Hur Hour 0 Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 47 Appendix Table 4 Dixell Control Parameter and Defaults Other Min Minutes 0 Other dAY Day of the week 0 First day of week Regulation Hd1 end nu Second day of Regulation Hd2 week end nu Working days Energy saving start Energy Saving iLE time 0 00 Hours Working days Energy saving Energy Saving dLE duration 0 00 Hours Holiday Energy Energy Saving iSE saving start time 0 00 Hours Holiday Energy Energy Saving dSE saving duration 0 00 Hours 1st working days Defrost defrost start time 7 00 Hours 2nd working days Defrost Ld2 defrost start time 15 00 Hours 3rd wor
35. hold the SET key for more than 2 seconds to change the set point value 2 The value of the set point will be displayed and the C or F LED starts blinking 3 To change the set point value push the UP or DOWN arrows within 10 seconds 4 Push the SET key again or wait 10 seconds 10 10 Changing the High Low Alarms 1 Enter the programming mode by pressing the SET DOWN arrow keys for 3 seconds the C or F LED starts blinking 2 Select the required alarm by pressing the UP or DOWN arrows ALU max temp ALL min temp 3 Use the SET key to display the value Use the UP or DOWN arrows to change the value Press SET to store the new value and move to the next parameter Nin To exit press SET UP arrow or wait 15 seconds without pressing a key 10 11 Changing the Auto Defrost Cycle 1 Enter the programming mode by pressing the SET DOWN arrow keys for 3 seconds the C or F LED starts blinking 2 Enter the hidden menu by pressing the SET DOWN arrow keys for 3 seconds 3 Select the required auto defrost by pressing the UP or DOWN arrows Ld1 to Ld3 4 Use the SET key to display the value 5 Use the UP or DOWN arrows to change the value 24 hr clock format 6 Press SET to store the new value and move to the next parameter 7 To exit press SET UP arrow or wait 15 seconds without pressing a key
36. ide between the door gasket and the cabinet flange and close the door 3 Slowly pull the paper strip from the outside You should feel some resistance 4 Repeat this test at 4 inch intervals around the door If the door does not seal properly replace the gasket Thermo Scientific XBF40 MD Series Blast Freezers Installation 4 5 Installing a Drain In normal operation the refrigeration system will produce a quantity of water Line Optional that is condensed out of the air and melted off during the defrost cycle As delivered this unit routes the water to a stainless steel pan where it will be evaporated back into the room by compressor heat An optional drain kit can be installed to divert the water to a facility drain if desired This installation should only be performed by a qualified and properly equipped service technician To install the optional drain kit 1 Make sure that the rear breaker switch is turned to OFF the unit is unplugged and there is no power present 2 Remove the sheet metal side cover on the latch side of the unit 3 Place the small end of the tubing adapter into the tubing included in the kit A drop of liquid soap added to the fitting will enable the tubing to slide on more easily 4 Locate the clear white plastic drain hose in the machine compartment Place the large end of the tubing adapter into the open end of the drain hose 5 Route the clear tubing out the grate on the rear of
37. is page is intentionally left blank 36 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers 11 6 230VAC Chassis Power Wiring Diagram Appendix 9 8 7 6 3 2 1 UNIT WIRING EVAPORATOR WIRING F F C 1 N FROM BR BL CONTROLLER FAN P SOLENOID VALVE TORELAY 2 DJ Bj ENCLOSURE CIRCUIT BREAKER SWITCH P P DRAIN LINE HEATER R FROM CONTROLLER TEMPERATURE BR BL COIL HEATERS 4x SWITOH DOOR EVAPORATOR SENSOR PROBE w w w R CONTROL W PROBE 18 20 22 28 24 1 D 9 je CONTROLLER 5 Q D 3 4 7 CONDENSER FAN B B OO w w O EVAPORATOR FAN RELAY E NOTES c oe c EVAPORATOR HEATER RELAY 1 SYMBOLS DESIGNATIONS AND GENERAL S SUO DRAWING METHODS 2 2 LEGEND 12VDC POWER SUPPLY BLACK BR BL BROWN W WHITE P PURPLE laqa WIRE TRACE M CONTACTOR B B START CAPACITOR START ai RELAY 1 2 5 RUN R CAPACITOR A R COMPRESSOR 9 8 7 6 3 2 1 Thermo Scientific XBF40 MD Series Blast Freezers Inst
38. king days Defrost Ld3 defrost start time 23 00 Hours 4th working days Defrost Ld4 defrost start time nu Hours 5th working days Defrost Ld5 defrost start time nu Hours 6th working days Defrost Ld6 defrost start time nu Hours 1st Holiday defrost Defrost 501 start time 6 00 Hours 2nd Holiday defrost Defrost Sd2 start time 14 00 Hours 3rd Holiday defrost Defrost Sd3 start time 20 00 Hours 4th Holiday defrost Defrost Sd4 start time nu Hours 48 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Table 4 Dixell Control Parameter and Defaults Appendix Thermo Scientific XBF40 MD Series Blast Freezers 5th Holiday defrost Defrost Sd5 start time nu Hours 6th Holiday defrost Defrost Sd6 start time nu Hours Other Adr Serial address 1 247 Probes PbC Kind of probe Pt1 On off key Configuration OnF configuration OFF Other dP1 Probe 1 value 0 Other dP2 Probe 2 value 0 Other dP3 Probe 3 value 0 Other dP4 Probe 4 value 0 Real Set point SET ES Other rSE SETd 0 Other rEL Firmware Release 0 Other Ptb Map code 11 65535 Installation Operation and Service Manual 49 WEEE Compliance WEEE Compliance This product is required to comply with the European Union s Waste Electrical amp Electronic Equipment WEEE Directive 2002 96EC It is marked with the following symbol Thermo Fisher Scientific has contracted with one or
39. ly Door latch may need adjustment 1 Gasket wrinkled worn or torn Check retaining means and replace if necessary Frost will accumulate at the point of an air leak Check carefully in the area of any concentrated frost build up 2 Check door latch and adjust for proper door adjustment 28 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Appendix Table 2 Troubleshooting Procedures SYMPTOM POSSIBLE CAUSE TEST AND CORRECTION Compressor does not run No power Low voltage Inoperative control Loose wiring at terminals Inoperative compressor contactor Open or grounded compressor windings Defective starting components Stuck seized compressor 1 Check power source If none call qualified electrician 2 Read supply voltage while unit is running Reading must equal rated 10 3 Refer to the controller setup procedure 4 Inspect all electrical connections 5 Start compressor using a compressor analyzer 6 Disconnect compressor leads and read phase to phase and for any phase to ground If electrical checks are OK Then check the compressor start gear 7 Replace starting components 8 Test by using compressor analyzer if unsuccessful replace compressor Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 29 Appendix Table 2 Troubleshooting
40. ly loaded in unit Allow ample time to recover from loading warm product Power supply Check for proper voltage to the unit If there is no voltage to the unit call an electrician Compressor If the compressor is not running look for a green snowflake symbol on the controller display indicating that the system is calling for the compressor to be on If the snowflake is illuminated but you do not hear the compressor running allow the unit 2 hours to reset its internal protector If the compressor does not restart after 2 hours call Technical Service If the snowflake is flashing the unit is in Start Delay mode wait for the flashing to stop and then see if the compressor starts If the snowflake is not illuminated check the controller parameters to make sure they are set correctly Evaporator iced over Trigger a manual defrost cycle by holding the melting snowflake key until the unit enters defrost mode 14 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Troubleshooting Table 1 Troubleshooting Procedures Problem Cause Solution Confirm that the fan symbol is illuminated on the controller and that the evaporator fan is turning If the fan symbol is not illuminated check that the magnet Evaporator fan not funcuoning on the bottom hinge side of the door is properly placed in the depression on the door If the fan s
41. more recycling disposal companies in each EU Member State and this product should be disposed of or recycled through them Further information on our compliance with these Directives the recyclers in your country and information on Thermo Scientific products which may assist the detection of substances subject to the RoHS Directive are available at www thermo com WEEE Konformittat Dieses Produkt muss die EU Waste Electrical amp Electronic Equipment WEEE Richtlinie 2002 96EC erf llen Das Produkt ist durch folgendes Symbol gekennzeichnet Thermo Fisher Scientific hat Vereinbarungen getroffen mit Verwertungs Entsorgungsanlagen in allen EU Mitgliederstaaten und dieses Produkt muss durch diese Firmen widerverwetet oder entsorgt werden Mehr Informationen ber die Einhaltung dieser Anweisungen durch Thermo Scientific dieVerwerter und Hinweise die Ihnen n tzlich sein k nnen die Thermo Fisher Scientific Produkte zu identizfizieren die unter diese RoHS Anweisungfallen finden Sie unter www thermo com Conformit WEEE Questo prodotto deve rispondere alla direttiva dell Unione Europea 2002 96EC in merito ai Rifiuti degli Apparecchi Elettrici ed Elettronici WEEE marcato col seguente simbolo Thermo Fischer Scientific ha stipulato contratti con una o diverse societ di riciclaggio smaltimento in ognuno degli Stati Membri Europei Questo prodotto verr smaltito o riciclato tramite queste medesime Ulteriori informazioni sulla conformit
42. n and Service Manual 17 Quick Start Guide 10 Quick Start Guide 10 1 Operating Specifications Power 208 230V 10 60Hz 20 amp breaker on a dedicated circuit requirements Operating 15 C 32 C ambient temperature maximum 60 relative environment humidity 10 2 Front Panel Keys To display target set point in programming mode it selects a SET parameter or confirms an operation zt DEF To start a manual defrost 4 4 4 UP To see the max stored temperature in programming mode it browses the parameter codes or increases the displayed DOWN To see the min stored temperature in programming X mode it browses the parameter codes or decreases the displayed To switch the instrument on and off when onF OFF O Not applicable viv x 18 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers 10 3 Key Combinations 10 4 LED Descriptions Thermo Scientific XBF40 MD Series Blast Freezers To lock and unlock the keyboard Quick Start Guide AtY SET SZ To enter in programming mode SETA To return to the room temperature display LED MODE FUNCTION ON Compressor enabled Eg Anti short cycle delay enabled zt ON Defrost enabled UP Flashing Drip time in progress ON Fans enabled Flashipa Fans delay after defrost in progress ON An alarm is occurring ON
43. ng the Condenser CAUTION Condensers should be cleaned at least every two months In heavy traffic areas condensers load with dirt more quickly Failure to keep the condenser clean can result in equipment warm up or erratic temperatures WARNING Be sure to disconnect the unit from main power before cleaning the condenser CAUTION Never clean near condensers with your fingers Some surfaces are sharp P P gt To clean the condenser Disconnect the power 2 Slide the front grill to the right 3 Remove both filters 4 Use a vacuum cleaner with hose and soft brush attachments to clean the front face of the finned surface 5 Clean up any loose dust replace the filters refer to Section 6 3 for filter cleaning and close the front grill 6 Reconnect the power Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 11 Maintenance 6 3 Cleaning the Condenser Filter 6 4 Manual Defrost 12 Installation Operation and Service Manual Clean the condenser filters every month or more if required To clean the filters 1 Slide the front grill to the right 2 Remove both filters 3 Gently vacuum or shake the filters to remove loose dust 4 Rinse in clean water shake excess water from the filters and replace the filters 5 Reconnect the power Although the freezer has an automatic powered coil defrost the entire cabinet should be defrosted at least once a week
44. o the back of the cabinet The power connector is NEMA 6 20P Therefore the installation site must have the corresponding receptacle NEMA 6 20R Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 5 Installation 6 Installation Operation and Service Manual P P gt P 4 4 Door Seal Power requirement is 208 230V A minimum 20A service is required Due to the capacity of this unit it may not start reliably on marginal outlets with high voltage drop even if the unloaded voltage is in the required range Supply conductors and connections must be sufficient to provide NEMA compliant power quality WARNING All electrical work must be performed by a qualified electrician in accordance with applicable local and national codes CAUTION Connect the equipment to the correct power source Incorrect voltage can result in severe damage to the equipment Always connect the equipment to a dedicated separate circuit Electrical codes require time delay fuse or circuit breaker protection for branch circuit conductors Door seal integrity is critical for freezers A loose fitting gasket allows moist air to be drawn into the cabinet resulting in quicker frost buildup on the evaporator coil longer running time poor temperature performance and increased operation cost To check the door seal complete the following steps 1 Open the door 2 Insert a strip of paper a couple of inches w
45. r Scientific Inc through its authorized Dealer or service organizations will at its option and expense repair or replace any part found to be non conforming in material or workmanship Thermo Fisher Scientific Inc reserves the right to use replacement parts which are used or reconditioned Replacement or repaired parts will be warranted for only the unexpired portion of the original warranty This warranty does not apply to damage caused by i accident misuse fire flood or acts of God ii failure to properly install operate or maintain the products in accordance with the printed instructions provided iii causes external to the products such as but not limited to power failure or electrical power surges iv improper storage and handling of the products v use of the products in combination with equipment or software not supplied by Thermo Fisher or vi installation maintenance repair service relocation or alteration of the products by any person other than Thermo Fisher or its authorized representative To obtain proper warranty service you must contact the nearest authorized service center or Dealer Thermo Fisher Scientific Incs own shipping records showing date of shipment shall be conclusive in establishing the warranty period At Thermo Fisher s option all non conforming parts must be returned to Thermo Fisher postage paid and replacement parts are shipped FOB Thermo Fisher s location Limitation of Liability THIS
46. t contents block this return air slot the airflow will be reduced and freezing performance will degrade The controller has an onboard real time clock that is used to trigger defrost cycles Up to 6 automatic defrosts can be programmed per day The factory default is 3 with one occurring every 8 hours Depending on the ambient humidity number of door openings and type of application more or fewer defrost cycles may be required to maintain performance When the defrost cycle starts the compressor and evaporator fan turn off and electric heaters on the evaporator and drain tube are energized melted water will drain from the evaporator into an evaporating pan in the base of the unit The defrost cycle will terminate when the programmed defrost time has elapsed or when the evaporator temperature probe reaches its programmed termination temperature A bimetallic temperature safety switch is installed in the evaporator enclosure to prevent an overheat condition in the event of a control failure or programming fault The evaporator fan and defrost heaters are powered through a cable that runs up the outside rear of the cabinet This cable is protected by a sheet metal guard Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 23 Appendix The controller is powered by 230VAC but switches 12VDC to control the freezer functions A power supply located on the outside of the relay enclosure provides the 12VDC control
47. ve i S aae posee e q Bass 10 Adjusting Shelves 10 ien vie sey i un i sis 11 Cleaning the Cable iicet 11 Cleaning the Condenser 11 Cleaning the Condenser Filter 12 Manual coe e Da Saa i aa ees 12 Drain Maintenance 13 Troubleshootins 14 Warranty Domestic 16 Warranty International 17 Quick Start Guide 18 Operating Specifications 18 Front Panel coactus tet utat d uu RR 18 Key Combinations 19 LED Descripti ns sas eas 19 Alarm Signals y u uu uuu Sh Sapay 20 Silencing Audible Alarm esee 20 Setting the Real Time Clock 20 Manually Engage a Defrost Cycle 20 Changing the Set Point 21 Table of Contents Changing the High Low Alarms
48. y the manufacturer the protection provided by the equipment may be impaired Do not modify system components especially the controller Use Thermo Scientific exact replacement equipment or parts Before use confirm that the product has not been altered in any way Your unit must be properly grounded in conformity with national and local electrical codes Never connect the unit to overloaded power sources Disconnect the unit from all power sources before cleaning troubleshooting or performing other maintenance on the freezer or its controls WARNING During normal operation the freezer interior and loaded product will be extremely cold Never touch the freezer interior or frozen product without insulated gloves 2 Installation Operation and Service Manual Thermo Scientific XBF40 MD Series Blast Freezers Unpacking CAUTION Never drill holes in or near the cabinet walls Drilling could damage the insulation and make the freezer inoperable CAUTION When moving the freezer always grasp cabinet surfaces never pull the freezer by the latch handle Do not move freezer with any product inside 3 Unpacking At delivery examine the exterior for physical damage while the carriers representative is present If exterior damage is present carefully unpack and inspect the unit and all accessories for damage If there is no exterior damage unpack and inspect the equipment within five days of delivery If you find any damage
49. ymbol is illuminated but the fan is not turning check to make sure it is not blocked by frost buildup If it free and turns freely contact Technical Service PI Alarm rd ature pio Replace cabinet temperature probe failure RT Evaporator temperature probe P2 Alarm Replace evaporator temperature probe failure axis High cabinet temperature Allow ample time to recover from loading warm product HA Alarm Mea alarm Contact Service if unit does not recover LA Alarm Low cabinet temperature alarm Check controller parameters Close door If alarm persists check door switch magnet dA Alarm Door open alarm location If magnet is placed correctly contact Technical Service rtc Alarm Real time clock alarm Set controller clock rtF Alarm Clock failure alarm Contact Technical Service to replace controller Thermo Scientific XBF40 MD Series Blast Freezers Installation Operation and Service Manual 15 Warranty Domestic 8 Warranty Domestic Domestic Warranty 24 Months Full Warranty Parts and Labor International Warranty 18 Months parts only The Warranty Period starts two weeks from the date your equipment is shipped from our facility This allows for shipping time so the warranty will go into effect at approximately the same time your equipment is delivered The warranty protection extends to any subsequent owner during the warranty period During the first twenty four 24 months from shipment Thermo Fishe
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