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Summary of Contents for Thermo Scientific MR05 Series
- Page 1 Thermo Scientific MR05 Series Undercounter Laboratory Refrigerators Installation and Operation Manual 324019H01 Rev. C...
- Page 2 © 2015 Thermo Fisher Scientific. All rights reserved. ® I“Suva ” is a regisInstallationtered trademark of DuPont. All other trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
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Page 3: Table Of Contents
Table of Contents 1. Safety Precautions ..................... 1 2. Specifications ......................2 2.1. General specifications ..................2 2.2. Performance specifications .................. 2 2.3. Electrical specifications ..................2 2.4. Refrigeration specifications ................. 2 3. Introduction ....................... 3 4. Inspection for Damage ....................3 5. -
Page 5: Safety Precautions
MR05 Undercounter Laboratory Refrigerators Safety Precautions 1 Safety Precautions In this manual and on labels attached to this product, the words WARNING and CAUTION mean the following: SYMBOL SIGNAL MEANING Indicates an imminently hazardous situation, which, if not avoided, could WARNING result in death or serious injury. -
Page 6: Specifications
Environmental Operating Conditions Pollution Degree Installation Category Maximum Altitude 2000m Mean Sea Level Humidity 80% maximum, non condensing 15°C to 32°C Temperature Product Usage Indoor use only The MR05 series refrigerator has been optimized for performance in a 20C operating environment. -
Page 7: Introduction
Quiet, hermetically sealed refrigeration compressors. The defrosting process on all models is primarily accomplished by air circulated during off-cycle periods. Intended Use of the MR05 Series Undercounter Laboratory Refrigerator: Under normal conditions, the temperature warm-up during defrost is The MR05 series undercounter laboratory refrigerator described virtually unnoticeable. -
Page 8: Service
MR05 Undercounter Laboratory Refrigerators Service 8 Service 1. Open the refrigerator door. Place a screw driver under the 8.1 Hinge Adjustment interior portion of the cover and gently pry the cover outward. Hinge adjustment may be necessary if the door does not align with Pull out the hinge cover straight. -
Page 9: Door Gasket Replacement
MR05 Undercounter Laboratory Refrigerators Service 8.3 Door gasket replacement 1. Remove existing gasket from mounting track on the door by Old or damaged door gaskets will allow warm air to enter the unit, harming performance. Door gaskets should be replaced if in bad gently pulling out from1 corner of the door. -
Page 10: Controller Operations
To enter in programming mode 8.5 Controller Operations To return to room temperature display The MR05 Series refrigerator uses a Dixell XR02CX controller to maintain unit temperature. The controller is located inside the unit and is designed to be accessed only by qualified refrigeration... - Page 11 MR05 Undercounter Laboratory Refrigerators Service First probe calibration: (-9.9÷9.9°C) allows to adjust possible Hidden menu offset of the first probe. The hidden menu includes all the parameters of the instrument. P2 Evaporator probe presence: n= not present; y= the defrost How to enter the hidden menu stops by temperature.
- Page 12 MR05 Undercounter Laboratory Refrigerators Service Default Setting Values Ad Temperature alarm delay: (0÷99 min) time interval between the detection of an alarm condition and alarm signalling. LABEL DESCRIPTION RANGE PRESET LEVEL VALUE dA Exclusion of temperature alarm at startup: (0÷99 min) time interval between the detection of the temperature alarm REGULATION condition after instrument power on and alarm signalling.
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Page 13: Troubleshooting
MR05 Undercounter Laboratory Refrigerators Service 8.6 Troubleshooting It is recommended that a qualified refrigeration technician conduct evaluation and troubleshooting. TROUBLESHOOTING SERVICE CHART SYMPTOM POSSIBLE CAUSE POSSIBLE CORRECTIVE STEP Compressor will 1. Line disconnect switch open. 1. Close disconnect switch not start, no 2. - Page 14 MR05 Undercounter Laboratory Refrigerators Service TROUBLESHOOTING SERVICE CHART SYMPTOM POSSIBLE CAUSE POSSIBLE CORRECTIVE STEP Compressor 1. Excessively high discharge pressure. 1. See high discharge pressure symptom. starts and runs, 2. Low voltage to unit. 2. Determine reason and correct. but short cycles 3.
- Page 15 MR05 Undercounter Laboratory Refrigerators Service TROUBLESHOOTING SERVICE CHART SYMPTOM POSSIBLE CAUSE POSSIBLE CORRECTIVE STEP High suction 1. Excessive load. 1. Reduce load or add additional equipment. pressure. 2. Expansion valve overfeeding. 2. Check remote bulb. Adjust superheat. Low suction 1. Insufficient refrigerant in system. 1.
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Page 16: Replacement Parts
MR05 Undercounter Laboratory Refrigerators Service 8.7 Replacement parts Service Parts List ITEM NO PART NO DESCRIPTION 325051G01 S CONTROL BOX ASSEMBLY 2 (NOT SHOWN) 306543G01 S SERVICE EVAPORATOR ASSY (ITEM 3 & 4) 306539H01 CAP./DRIER/STRAINER ASSY 4 (NOT SHOWN) 306052H01 COOLER,UNIT 314803H01 115V, 60HZ, 1/5HP CONDENSING UNIT... -
Page 17: Warranty Statement
MR05 Undercounter Laboratory Refrigerators Warranty Statement 9 Warranty Statement MR Family of Products • Domestic and International Warranty • 24 Months Full Warranty Parts and Labor During the first twenty four (24) months from shipment, Company, 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. - Page 18 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.
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