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Thermo Scientific NESLAB Merlin

1. load y DOWNDadeg Q0 on Tdeat TEN products 505 872 0037 PLEASE NOTE We do sell the related products within this literature but we are not connected in any way with the manufacture of your product We provide this literature for the products we sell and service They are intended to provide users with the manufactures instructions to operate the equipment in a safe manner www idealvac com Thermo Scientific NESLAB Merlin Recirculating Chiller Thermo Scientific Manual P N U00753 Rev 09 20 10 Installation Operation Basic Service c UL Jus CE Visit our Web site at http www thermoscientific com t Product Service Information Applications Notes MSDS Forms e mail Voice Info 800 258 0830 Thermo Fisher Scientific 25 Nimble Hill Road Newington NH 03801 Tel 800 258 0830 or 603 436 9444 Fax 603 436 8411 www thermoscientific com tc Statement of Copyright Sales Service and Customer Support 25 Nimble Hill Road Newington NH 03801 Tel 800 258 0830 Sales 8 00 am to 5 00 pm Service and Support 8 00 am to 6 00 pm Monday through Friday Eastern Time Fax 603 436 8411 setvice tc us thermofisher com Dieselstrasse 4 D 76227 Karlsruhe Germany Tel 49 0 721 4094 444 Fax 49 0 721 4094 300 info tc de thermofisher com Building 6 No 27 Xin Jingiao Rd Shanghai 201206 Tel 86 21 68654588 Fax 86 21 64457830 info china thermofisher com
2. refroidir et se met flasher lorsque la temp rature de consigne est presque atteinte NESLAB Merlin Series xiii Preface xiv NESLAB Merlin Series 3 REGLAGE DE LA TEMPERATURE Appuyer sur la touche du controleur de temp rature pour s lectionner une temp rature de consigne Le t moin s allume et cette temp rature de consigne flashe Pour en changer utiliser les fl ches de r glage haut et bas jusqu l obtention de la temp rature souhait e Presser nouveau pour valider Cette nouvelle valeur flashera quelques secondes avant d tre remplac e par la temp rature pr sente 4 MAINTENANCE PERIODIQUE V rifier le fluide dans le r servoir S il est sale veuiller rincer et le changer ou rajouter un produit tout en s assurant de sa bonne compatibilit La p riodicit d pend des conditions locales d utilisation Avant de changer le liquide s assurer qu on soit une temp rature qui ne pr sente aucun risque Nettoyer les grilles du condenseur La p riodicit d pend du degr de propret du local Commencer par une premi re inspection au bout d un mois de fonctionnement puis espacer les v rifications s il y a lieu Les pompes type PD sont munies d un filtre de protection dont le r le est d emp cher des impuret s ou des corps trangers d endommager les corps de pompe Pour viter d ventuelles pertes de charge il convient de nettoyer ces filtres La premi re inspection doit s effectuer une semaine
3. Thermo Scientific Quick Reference Operating Procedures Thermo Scientific Preface Installation The unit has an air cooled refrigeration system Air is drawn in the front of the unit and discharged through rear and sides Position the unit so the intake and discharge are not impeded Inadequate ventilation will reduce cooling capacity and in extreme cases result in compressor failure Excessively dusty areas should be avoided and a periodic cleaning schedule should be instituted For proper operation the unit needs to pull substantial amounts of air through a condenser A build up of dust or debris on the fins of the condenser will lead to a loss of cooling capacity The unit will retain its full rated capacity in ambient temperatures up to approximately 77 F 25 C Make sure the voltage of the power source meets the specified voltage 10 The plumbing connections are located on the rear of the unit and are labelled gt and These connections are 2 inch FPT inch FPT for units with CP 55 pumps Remove the plastic protective plugs from both plumbing connections Connect the gt fitting to the inlet of your application Connect the fitting to the outlet of your application To fill the reservoir remove the reservoir access panel and locate the reservoir cap Remove the cap and fill the reservoir with clean cooling fluid For fluid recommendations refer to page 11 Operation Before starting the unit d
4. 400 Volt 50 Hertz units are equipped with a phase monitor Ensure proper phase to the unit See Phase Rotation Interlock on page 28 If Geng is lit the unit was shut off using serial communications Start the unit using serial communications To start the unit using the local controller press and hold both arrow keys for 10 seconds the controller will power Turn serial communications off using the procedure on page 16 and then press to turn off the controller Press again to start the unit NESLAB Merlin Series 37 Chapter 5 38 NESLAB Merlin Series 2 Unit will not circulate fluid Check the reservoir level Fill if necessary Check the position of the reservoir tank valves See Reservoir Tank Isolation Valves Open Tank Circulation Chapter 2 Check the instrument being cooled for restrictions in the cooling line Check the pump strainer units with PD pumps The pump motor may be too hot Allow it to cool Check the pressure gauge adjust the relief valve as necessary units with PD pumps On units with PD pumps check the pump and coupling Make sure the power is off and remove the top and right side panels Locate the brass pump and grey motor A silver clamp ring holds the two together Remove the clamp and separate the pump and motor First look to see if the coupling is broken or not and then check the pump shaft by rotating If it is seized or sticks then it has failed Inadequate temperature co
5. Copyright 2010 Thermo Fisher Scientific All rights reserved This manual is copyrighted by Thermo Fisher Scientific Users are forbidden to reproduce republish redistribute or resell any materials from this manual in either machine readable form or any other form Contents Preface e iii OEP CG miccia iii WEEE ROH iii GE EE ado iv Feedback A ms iv pco e EE E iv Wi QC ror aM EEE v en vi Quick Reference Operating Procedures wanneer ix Chaptert Destini all SPEC HEHUORS siriaca 2 Chapter2 Installation and Operation 1 EN near rentrent SEERE dl tes tint ann nn 7 Electrical Requirements sari 8 Plumbing Requirements MN E 10 ET EE EE EE A A 1 Pilling Requirements M X 12 Reservoir Tank Isolation Valves Open Tank Circulation 12 oni X zp t 15 Start Up Shut ioc O O O T 15 EE assumer mieu 18 Chapter E c 21 Communication Connect eine Heder 21 Remote Start Rane ON Da Ferd Temperature Senna liana 23 Reservoir Level Wapninp Pilla 24 Low Pump Flow Warning Fault cai 24 Additional Acesssoties nad 24 Chapter 4 Maintenance cu 25 Error Codes 25 Displaying Software Version Number smeken 26 Controller PID Values naden 27 SD O M iin een 27 AL M 28 p sii RR N RN a nana an ein etienne
6. The unit is configured to run or shut down using the controller s Setup Tuning Loop see page 18 External Filtration Package A partial flow liquid filter available in 5 10 25 and 40 micron filter sizes External DEI Package Partial flow DEI package will maintain between 1 and 3 MQ cm water resistivity A cartridge indicator lets you know when the filter needs changing Condenser Air Filter An easy to install air filter protects the condenser in dusty environments External Strainer Accessory Kit An easy to install kit to make routine strainer preventative maintenance easier Thermo Scientific ThermoScientific ErrorCodes Chapter4 Maintenance This chapter covers the unit s basic manitenance E 00 ROM checksum Clear with S key E 0 I Test failure Locks up the program Er Oe Display board failure Clears when display board is fixed E 03 Critical checksum failure Clear with S key Er IH Synchronous comm check connections Er 15 Asynchronous comm Er lb Bad calibration data redo calibration Unusual Hardware Conditions These errors will flash on the display and cannot be cleared These are internal controller problems E 04 through g 13 Interrupt errors during runtime Conf BOM invalid Functional Machine errors These errors will clear themselves once the problem disappears Display Indication Lot Low temp setpoint warning fault Add Low level warning fluid below minimum fill level see p
7. twice Press until Stor is displayed pressing A accepts the new value Repeat for the low end temperature r2L Use a fluid that is just above the low end temperature range of the unit NOTE Both the high and low temperatures must be entered for a valid calibration If power is lost before the procedure is complete critical data needed for the calculation of calibration parameters will be lost After pressing A at the Stor prompt wait several seconds before proceeding to ensure that a bad calibration message does not appear Premature use of the keypad after pressing A may cancel the bad calibration error message A NESLAB Merlin Series 35 Chapter 4 36 NESLAB Merlin Series Thermo Scientific Chapters Troubleshooting This chapter covers the basic troubleshooting procedutes Chec klist 1 Unit will not start or shuts down a b C Check the line cord ensure it is plugged in Check the position of the circuit protector on the rear of the unit Check the controller for error codes see page 25 NOTE On units with a Low Flow Switch and that are configured to shut down with a low flow fault LaF L several starting attempts may be necessaty A d Thermo Scientific On units with a Reservoir Level Switch check the reservoir level On units with optional serial communications or remote start stop ensure the desired mode is enabled Make sure power soutce voltage is within the unit rated voltage 10
8. Premature use of the keypad after pressing A may cancel the bad calibration error message A Thermo Scientific NESLAB Merlin Series 33 Chapter 4 External Sensor When using any external sensor rtd2 for the first time Thermo Fisher recommends a two point calibration This calibration will only affect the temperature read by the external sensor Do not pick calibration points that are outside the safe operating limits of the fluid in your application For example with water 35 C and 5 C would be typical calibration points Enter the Calibration Loop by pressing and holding W and then pressing the A three times The display will read CAL Press Ak and the display will read rtd1 then press and the display will read rtd2 To calibrate the high end temperature press A and the display will read r2H Press A again and the display will flash between r2H and the current probe temperature L CAL rtd ra rtd2 external sensor rtd1 internal sensor see previous page EN Accept Al Changes 34 NESLAB Merlin Series Thermo Scientific Thermo Scientific Chapter 4 Place the external sensor and a calibrated reference thermometer in a source containing fluid that is just below the high end temperature range of the unit ensure the fluid temperature is stable Use A and W to adjust the temperature display to match the reference thermometer Once the display temperature matches the reference thermometer press
9. Reverse any two line conductors on the line side of the main circuit breaker Nevet remove the green ground wire A Reconnect the unit to its power source If the unit will not start contact our Setvice Department 28 NESLAB Merlin Series Thermo Scientific PD Pressure Relief Thermo Scientific Valve Chapter 4 PSI KPa Units with PD pumps have a Pressure Relief Valve Refer to the name plate label on the rear of the unit and the BOM decoder on page 32 to identify the type of pump The valve is used to adjust the unit s fluid pressure NOTE The valve is factory preset for the most common applications and normally requires no further adjustment The valve is factory preset not to exceed 80 5 psi 550 1 kPa A NOTE PD pumps are capable of 110 psi maximum output pressure Ensure your plumbing is rated to withstand 110 psi at the highest operating temperatures A System back pressure is installation and application dependent Due to internal Merlin back pressure the minimum pressure setting for a deadheaded pump is 28 psi for a PD 2 pump and 10 psi for a PD 1 these settings prohibit external flow from the Merlin Before adjusting the valve turn the unit off Locate the circular relief valve opening on the rear of the unit Turn the threaded stem fully clockwise If the unit is not plumbed to an application install a loop of hose equipped with a shut off valve between the supply and return fittings Turn the unit
10. this warranty does not extend to repairs made by the use of parts accessories or fluids which are either incompatible with the unit or adversely affect its operation performance or durability Thermo Fisher Scientific reserves the right to change or improve the design of any unit without assuming any obligation to modify any unit previously manufactured THE FOREGOING EXPRESS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OUR OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE COMPONENT PARTS AND Thermo Fisher Scien tiic DOES NOT ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR IT ANY OTHER OBLIGA TION Thermo Fisher Scientific ASSUMES NO RESPONSIBILITY FOR INCIDENTAL CONSEQUENTIAL OR OTHER DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OR DAMAGE TO PROPERTY LOSS OF PROFITS OR REVENUE LOSS OF THE UNIT LOSS OF TIME OR INCONVENIENCE This warranty applies to units sold in the United States Any units sold elsewhere are warranted by the affiliated marketing company of Thermo Fisher Scientific This warranty and all matters arising pursuant to it shall be gov erned by the law of the State of New Hampshire United States All legal actions brought in relation hereto shall be filed in the appropriate state or federal courts in New Hampshire unless waived by Thermo Fisher Scientifi
11. 500 15 5 20 35 Temperature C 2500 A M 75 60Hz Wal Fluid 50 50 PG Water B B M 75 50Hz 2000 C M 33 50 60Hz G D M2 H 3 1500 5 50 60Hz E C 1000 G I 500 15 5 20 35 Temperature C 2 6000 A M 150 60Hz B M 150 50Hz 29 C M 100 60Hz S D M 100 50Hz o4 5 c 3 E I 2 15 5 20 35 Temperature C 5000 A M 150 60Hz Fluid 50 50 PG Water A B M 150 50Hz C M 100 60Hz D M 100 50Hz Heat Removal Watts 15 5 20 35 Temperature C Thermo Scientific NESLAB Merlin Series 3 4 Chapter1 NESLAB Merlin Series Pump Options Standard temperature range units Unit Standard Optional M 75 PD 1 PD 2 M 100 208 230V 60Hz PD2 CP55 M 100 230V 50Hz PD2 None M 100 400V 50Hz PD2 CP55 M 150 208 230V 60Hz PD2 CP55 M 150 230V 50Hz PD2 None M 150 400V 50Hz PD2 CP55 Low temperature range units Unit Standard Optional M25 PD 1 None M 33 PD 1 PD2 M 75 PD2 None M 100 208 230V 60Hz PD 2 CP 55 M 100 230V 50Hz PD 2 None M 100 400V 50Hz PD 2 CP 55 M 150 208 230V 60Hz PD2 CP55 M 150 230V 50Hz PD2 None M 150 400V 50Hz PD2 CP55 NOTE PD pumps should not be used with applications that are sensitive to high pressures A Thermo Scientific Chapter1 Pumping Capacities Bar PSI 40 60 EH A PD 1 60Hz B PD 1 50Hz 34 50 En n C PD 2
12. Proportional Band P 0 1 99 9 CA 00 01 F1 02 d1 d2 cs CA 00 01 F1 O3 qb d1 d2 cs Set Heat Integral I 0 9 99 CA 00 01 F2 02 d1 d2 cs CA 00 01 F2 O3 qb d1 d2 cs Set Heat Derivative D 0 5 0 CA 00 01 F3 02 d1 d2 cs CA 00 01 F3 03 gb d1 d2 cs Set On Off Array The Set On Off Array command is used to set and or request unit settings Depending on the software version the array consists of up to 5 data bytes d1 db Each byte represents the state of one setting see below The master can send the array with a value of 0 turn off disable 1 turn on enable or 2 do not change 0 or 1 causes the unit to change the setting 2 only requests the state of a setting The slave returns values of 0 off disabled or 1 on enabled SW Version 02950 1A E CA 00 01 81 01 d1 cs CA 00 01 81 01 d1 cs SW Version 02950 1F H CA 00 01 81 04 d1 d4 cs CA 00 01 81 04 d1 d4 cs SW Version 02950 1J K CA 00 01 81 05 d1 d5 cs CA 00 01 81 05 d1 d5 cs SW Version 02950 1L Any of the above formats sample turn unit on 02950 1 J K CA 00 01 81 05 01 02 02 02 02 6F limited to the range of the chiller g1 unit off 0 on 1 command bytes shown in bold d2 external sensor disabled 0 enabled 1 qb qualifier byte see Table 2 d3 fault mode disabled 0 enabled 1 d1 d2 16 bit signed integer of the value being sent or received d4 tenths display disabled 0 enabled 1 cs the
13. SMS LED on the controller is illuminated If the unit is shut off while still configured for serial communication the temperature display will go blank but the LED will still be illuminated When the unit is configured for serial communication the unit can be stopped using the local controller To restart send another start command NOTE If you need to start the unit using the local controller simultaneously depress and hold both arrow keys for approximately 10 seconds The display will show the temperature and the alarm will sound Use and scroll to the Sg LED and turn it OFF The unit can now be started and operated from the keypad 4 The pin out information is Pin RS 232 COMM RS 485 COMM 1 No connection No connection 2 TX No connection 3 RX No connection 4 No connection No connection 5 GND Signal ground Noconnection 6 Noconnection Noconnection 7 Noconnection Noconnection 8 Noconnection T 9 Noconnection T TX Transmitted data from controller RX Received data to controller Hardware Mating Connector AMP Part 745492 2 or equivalent NESLAB Merlin Series 21 Chapter 3 22 Remote Start Stop Remote Start Input Absolute Maximum Input Voltages NESLAB Merlin Series 244 12345 6789 A male 9 pin D connector is located on the rear of the unit The connector is used for either 12 24VAC or 12 24VDC remote start stop and as a status relay dry contact To start the unit from a remote
14. apr s la mise en route de l appareil Ensuite nous pr conisons une v rification tous les mois voire moins selon l tat dudit filtre Avant de nettoyer ce filtre d connecter l appareil et vidanger Thermo Scientific Thermo Scientific Installazione Preface L unita dotata di un condensatore raffreddato ad aria Il flusso d aria per il raffreddamento viene prelevato frontalmente ed espulso posteriormente e lateralmente IMPORTANTE Posizionare lo strumento in modo da evitare l ostruzione di tali accessi Una ventilazione non appropriata comporter una riduzione della capacit refrigerante ed in casi estremi danni al compressore L apparecchiatura mantiene la massima capacit di raffreddamento con una temperatura ambiente fino a 25C circa opportuno evitare la locazione dell unit in ambienti troppo polverosi e provvedere periodicamente ad una pulizia del condensatore Assicurarsi che la tensione di alimentazione rispetti quella specificata 10 Le connessioni idrauliche 1 2 pollici FPT o pollici FPT con pompe idrauliche del tipo CP 55 sono posizionate ed indicate nel retro dello strumento e per accedervi rimuovere l apposita protezione plastica Per accedere alla tanica di riserva del fluido rimuovere il pannello di accesso ed il relativo tappo protettivo quindi riempire il serbatoio con l adeguato fluido refrigerante possibile verificare il livello del fluido refrigerante attraverso
15. checksum of the string see text d5 Alarms on internal 0 or external sensor 1 1 is invalid when d2 0 external sensor disabled Table 2 QUALIFIER BYTE 00 0 precision no units of measure 01 0 precision C 10 1 precision no units of measure 11 1 precision C 20 2 precision no units of measure Example The temperature of 45 6 C would be represented by the qualifier 11 hex followed by the 2 bytes 01 C8 hex 456 decimal 50 NESLAB Merlin Series Thermo Scientific Table 3 READ STATUS BIT b 7 1 b 6 1 b 5 1 b4 1 b 3 1 DZs b l 1 b0 1 d1 External Temp Sensor Enabled Level 1 Warning Auto Refill Low Flow Warning Low Level 2 Warning High or Low Temp Warning High or Low Temp Bypass Unit Faulted Unit Running t d2 is the detail of fault d1 b 1 mutully exclusive Thermo Scientific Appendix B d2 Reserved Reserved Internal Temp Sensor Fault External Temp Sensor Fault High Temp Fixed High Temp Fault Low Temp Fixed Low Temp Fault Low Flow Fault Low Level 2 Fault NESLAB MerlinSeries 51 WARRANTY Thermo Fisher Scientific warrants for 24 months from date of shipment the Thermo Scientific NESLAB Merlin unit according to the following terms Any part of the unit manufactured or supplied by Thermo Fisher Scientific and found in the reasonable judgment of Thermo Fisher to be defective in material or workmanship will be repaired at an authorized Thermo Fisher Repair Depot without c
16. circuit protection that is equivalent approx to the branch circuit rating This is to protect the Merlin and is not intended as a substitute for branch circuit protection Standard and Low Temperature 60 Hertz units available power options Unit Pump Voltage Current Value Line Cord Plug M25 PD 1 115 9 8 5 15P M 33 PD 1 115 13 2 5 20P PD2 115 15 5 5 20P PD 1 208 230 6 5 6 15P PD2 208 230 7 8 6 15P M75 PD 1 208 230 8 8 6 15P PD2 208 230 10 1 6 15P M 100 PD2 208 230 13 1 L6 30P CP 55 208 230 16 1 L6 30P M 150 PD2 208 230 15 4 L6 30P CP55 208 230 18 4 L6 30P NOTE All 60 Hertz units are UL Listed and Certified to Canadian Standards 4 Amperage based on extreme operating conditions Operating in a 20 C ambient and at nominal voltage will result in a lower amperage draw 8 NESLAB Merlin Series Thermo Scientific Thermo Scientific Chapter 2 Refer to the name plate label on the rear of the unit for specific electrical requirements NOTE Three phase units are not supplied with a line cord Instructions for wiring three phase units are located behind the power box cover To access the power box remove the unit s top and left side panel Remove the screws securing the cover A Standard and Low Temperature 50 Hertz units Unit Pump Voltage Current Value Line Cord Plug M25 PD 1 230 5 1 Country Specific M 33 PD 1 230 6 3 Country Specific PD2 230 7 6 Country Specific M 75 PD 1 230 8 8 Country Specific PD2 2
17. fte ndringen Displayet vil i et kort jeblik blinke med den valgte temperatur og vender dern st tilbage med visning af den recirkulerende v sketemperatur Periodisk vedligeholdelse V skebeholderen kontrolleres regelm ssigt Er reng ring n dvendig skylles v skebeholderen med en rensev ske der er forenelig med cirkulationssystemet og k lev sken K lev sken udskiftes regelm ssigt afh ngig af omgivelsestemperaturen og hvor tit k leren er i brug Inden udskiftning af k lev ske skal k lev skens temperatur altid kontrolleres K leribberne b r altid holdes fri for st v og snavs Hvor tit ribberne skal t rres af afh nger af hvor st vede omgivelserne er Fra fabrikkens side anbefales en m nedlig inspektion af kondensoren efter k lebadets f rste ibrugtagning Dern st b r en reng ringsprocedure indf res s ledes at der sikres en regelm ssig og systematisk reng ring af k leren K lebade med PD pumper har monteret et filter Filtret forhindrer st v og snavs i at tr nge ind i pumpen og del gge pumpefanerne Et tilstoppet filter vil ligeledes for rsage get tryk p afl bspumpen For at undg at filtret tilstoppes anbefales det at rense filtret ugen efter k leren har v ret i brug f rste gang Herefter b r filtret kontrolleres en gang om m neden Inden filtret renses skal stikket tr kkes ud af stikkontakten og k lebadet t mmes for k lev ske Thermo Scientific Procedures De Mise
18. is aan de twee zijkanten en aan de achterzijde Plaats het apparaat zo dat de luchtaanvoer niet geblokkeerd is Bij onvoldoende luchtdoorstroming zal het koelvermogen afnemen In extreme gevallen zal de compressor uitvallen Plaats het apparaat niet in stoffige ruimtes Maak het apparaat regelmatig schoon Voor een goede werking moet het apparaat voldoende lucht door de condensor laten stromen Een ophoping van stof of andere deeltjes zullen het koelvermogen nadelig beinvloeden Het apparaat zal de opgegeven specificaties halen tot een omgevingstemperatuur van ongeveer 77 F 25 C Het voltage moet voldoen aan het opgegeven voltage 10 De aansluitingen voor de waterslangen zijn gelabeld en bevinden zich aan de achterzijde De aansluitingen zijn Y inch FPT inch FPT voor apparaten met een CP 55 pomp Verwijder de plastic beschermdopjes die zich in de aansluitingen voor de waterslangen bevinden Sluit de Outlet van het apparaat aan op de Inlet van uw toepassing Sluit de Inlet van het apparaat aan op de Outlet van uw toepassing Verwijder het paneel wat toegang geeft tot de vulopening van het vloeistofreservoir Verwijder de dop van het vloeistofreservoir en vul het reservoir met schone vloeistof Voor aanbevelingen over vloeistoffen verwijzen wij naar pagina 11 In bedrijf stellen Check voor het opstarten alle aansluitingen Overtuig u ervan dat het apparaat op de juiste manier is gevuld met koelvloeist
19. l Indicates the controller is displaying the low temperature alarm setting The indicator flashes and the alarm sounds if this limit is exceeded Adjust the display value using the arrow keys Indicates the controller is displaying the high temperature alarm setting The indicator flashes and the alarm sounds if this limit is exceeded Adjust the display value using the arrow keys WE Optional Indicates the unit is in the remote serial communication mode of operation The indicator flashes if the unit is in the remote start stop mode of operation Toggle between the local and remote modes using the arrow keys NOTE For all four indicators if neither arrow key is pressed within 10 seconds the display will return to the recirculating temperature display Save any change using After pressing an atrow key if is not pressed within 60 seconds the display will return to the recirculating temperature display and ignore any change A 14 NESLAB Merlin Series Thermo Scientific Start Up Shut Down Pre Start Circuit Protector Thermo Scientific A Starting Setpoint Chapter 2 D OG Before starting the unit double check all electrical and plumbing connections Ensure the power cord is secured to the rear of the unit Have extra recirculating fluid on hand If the unit will not start refer to Chapter 5 Troubleshooting Place the circuit protector located on the rear of the unit to the up position the controller wil
20. on Ensure that there is back pressure on the system Use the pressure gauge to read the relief valve setting Back out the threaded stem on the relief valve counterclockwise Continue until the gauge indicates 80 psi 550 kPa or the desired setting NOTE The relief valve may drip if the threaded stem is backed out too far A NOTE Should the unit start to vibrate the valve setting may be the cause Changing the pressure setting 5 psi will eliminate the vibration 4 NESLAB Merlin Series 29 Chapter 4 Pump Strainer Units with PD pumps and units with CP 55 pumps that are equipped with reservoir level low pump flow switches have a strainer Refer to the name plate label on the rear of the unit and the BOM decoder on page 32 to identify the type of pump and configuration Zu If debris is in the system the strainer will prevent the material from being drawn into the flow switch and the pump damaging the pump vanes A clogged strainer will also cause increased discharge pump pressures After initial installation the strainer may become clogged with debris and scale Therefore the strainer must be cleaned after the first week of installation After this first cleaning we recommend a monthly visual inspection After several months the cleaning frequency will be established handling temperature Disconnect the power cord from the power source A Before cleaning the strainer ensure the cooling fluid is at a safe We also reco
21. thread wound in a clockwise direction while facing the thread or a suitable Teflon sealant lubricant The male connection can be tightened 2 full turns turn and the 4 male connector can be tightened 2 2 to 3 turns to seal Overtiehtenine will damage the female thread Reservoir Access Panel Drain Connect gt to the hose feeding the inlet of your application Connect to the hose from the outlet of your application Clamp all connections Never connect the fittings to your building water supply or any water pressure source A NOTE On units equipped with PD pumps ensure your plumbing is rated to withstand 110 psi at the highest operating temperature A It is important to keep the distance between the unit and the instrument being cooled as short as possible Tubing should be straight and without bends If diameter reductions must be made they should be made at the inlet and outlet of your application not at the chiller All units have a ball valve reservoir drain located on the rear of the unit Add the desired length of tubing to the drain valve To help prevent any spillage from your application consider installing external isolation valves on the supply and return lines Thermo Scientific Chapter 2 Fluids Never use flammable or corrosive fluids with this unit Do not use automotive antifreeze Commercial antifreeze contains silicates that can damage the pump seals Use of automotive antifreeze will void the m
22. v re 25 C for at sikre bedst mulig drift Sp ndingen skal v re 220V R rtilslutningerne er anbragt p bagsiden af k lebadet og er afm rkede Tilslutningerne er 1 2 FPT K lebade med CP 55 pumpe har 3 4 FPT tilslutning Den beskyttende plastik om begge r rtilslutninger fjernes Tilslutningsslangen forbindes til k lebadets tilslutningsstykke Afl bsslangen forbindes til k lebadets afl bsstykke Afmonter dern st panelet til veskebeholderen Fjern dakslet og fyld ren k lev ske i v skebeholderen Se side 11 i betjeningsvejledningen for anbefalet k lev ske Ibrugtagning F r k lebadet tages i brug kontrolleres alle elektriske og mekaniske tilslutninger p ny P se ligeledes at k lev ske er fyldt p cirkulationssystemet Afbryderknappen til cirkulationssystemet er anbragt bag p k lebadet Afbryderen s ttes i verste position For at starte kolebadet trykkes afbryderen ned N r kolebadet skal stoppe trykkes ned igen LED displayet viser kolesystemets status N r varme fjernes fra k lev sken lyser displayet N r driftstemperaturen n rmer sig setpunktet vil LED displayet blinke Thermo Scientific NESLAB Merlin Series xi Preface xii NESLAB Merlin Series Indstilling af temperatur Setpunktet kan vises ved at trykke p kontrolenheden Det indstillede setpunkt vil blinke i displayet nskes setpunktet ndret trykkes p piltasterne indtil nsket temperatur vises Tryk igen for at bekr
23. 0 DD CA 00 01 70 00 8E CA 00 01 40 00 BE CA 00 01 60 00 SE CA 00 01 74 00 8A CA 00 01 75 00 89 CA 00 01 76 00 88 CA 00 01 71 00 8D CA 00 01 72 00 8C CA 00 01 73 00 8B d1 d2 16 bit signed integer of the value being sent or received cs the checksum of the string see text 50 NESLAB Merlin Series CA 00 01 20 03 qb d1 d2 cs CA 00 01 21 03 qb d1 d2 cs CA 00 01 70 03 qb d1 d2 cs CA 00 01 40 03 qb d1 d2 cs CA 00 01 60 03 qb d1 d2 cs CA 00 01 74 03 qb d1 d2 cs CA 00 01 75 03 qb d1 d2 cs CA 00 01 76 03 qb d1 d2 cs CA 00 01 71 03 qb d1 d2 cs CA 00 01 72 03 qb d1 d2 cs CA 00 01 73 03 qb d1 d2 cs v1 v2 protocol version ed Bad command byte gets echoed en error number 01 Bad command 02 Bad checksum xx no valid data include in checksum Thermo Scientific Appendix B Table 1 Commands continued All bytes are in hex FUNCTION MASTER SENDS UNIT RESPONDS Set Setpoint control point CA 00 01 FO 02 d1 d2 cs CA 00 01 FO O3 qb d1 d2 cs Set Low Temp CA 00 01 C0 02 d1 d2 cs CA 00 01 C0 O3 qb d1 d2 cs Set High Temp CA 00 01 EO 02 d1 d2 cs CA 00 01 EO O3 qb d1 d2 cs Set Cool Proportional Band P 0 1 99 9 CA 00 01 F4 02 d1 d2 cs CA 00 01 F4 O3 qb d1 d2 cs Set Cool Integral 0 9 99 CA 00 01 F5 02 d1 d2 cs CA 00 01 F5 O3 qb d1 d2 cs Set Cool Derivative D 0 5 0 CA 00 01 F6 02 d1 d2 cs CA 00 01 F6 O3 qb d1 d2 cs Set Heat
24. 28 Phase Rotation Ins Hoch meranti eroderende 28 Thermo Scientific NESLAB Merlin Series Contents PD Pressure Relief Valea 29 Pump SAE rai 30 PD Pump Motor Lubrieatien anna al se EEE EE ERE 32 BOM Pre 32 Temperature Sensor C MN e aeter tr a Herrn ec a 32 Chapter5 Troubleshooting Checklist niederen af DERGE ASSISTANCE ricada 39 Appendix A Water Quality Standards and Recommendations Appendix B NC Serial Communications Protocol sss 47 Warranty ii NESLAB Merlin Series Thermo Scientific Thermo Scientific Compliance WEEE RoHS Preface Listed to UL 61010 1 2nd Edition Products tested and found to be in compliance with the requirements defined in the EMC standards defined by 89 336 EEC as well as Low Voltage Directive LVD 73 23 EEC can be identified by the CE Mark on the rear of the unit The testing has demonstrated compliance with the following directives e LVD 73 23 EEC IEC EN 61010 1 e EMC 89 336 EEC IEC EN 61326 1 For any additional information refer to the Declaration of Conformity that shipped with the unit This product is required to comply with the European Union s Waste Electrical amp Electronic Equipment WEEE Directive 2002 96 EC It is marked with the following symbol Thermo Fisher Scientific has contracted with one or more recycling disposal companies in each EU Member State and this product should be disposed o
25. 30 10 1 Country Specific M 100 PD2 230 13 5 Country Specific PD2 400 3 5W 7 7 Country Specific CP 55 400 3 5W 5 5 Country Specific M 150 PD2 230 15 6 Country Specific PD2 400 3 5W 7 7 Country Specific CP 55 400 3 5W 5 5 Country Specific Amperage based on extreme operating conditions Operating in a 20 C ambient and at nominal voltage will result in a lower amperage draw Refer to the name plate label on the rear of the unit for specific electrical requirements NOTE Three phase units are not supplied with a line cord Instructions for wiring three phase units are located behind the power box cover To access the power box remove the unit s top and left side panel Remove the screws securing the cover A NESLAB Merlin Series 9 Chapter 2 10 Plumbing Requirements Plumbing Connections NESLAB Merlin Series The plumbing connections are located on the rear of the unit and are labeled gt supply and return The connections are 2 inch Female Pipe Thread For units with CP 55 pumps the connections are 4 inch Female Pipe Thread Units with V inch fittings are supplied with inch and 2 inch barbed adapters units with inch fittings are supplied with 1 2 inch and inch barbed adapters Remove the plastic protective plugs from both plumbing connections If requires install the barbed adapters to these connections Do not install the adapters or your fittings dry Use two wraps of Teflon tape on the male
26. 33 M75 M 100 M 150 Process Fluid Temperature Range Standard Temp Units NA NA 5 10 35 5 Ct0 35 C 5 Cto 35 C Low TempUnits 15Cto 35C 15 Cto 35 C 15 Cto 35 C 15Cto 35C 15 Cto 35 C Temperature Stability _ 0 1 C 0 1 0 1 C 0 15 0 15 Reservoir Volume Gallons 0 5 0 5 0 5 0 5 0 5 Liters 1 8 1 8 1 8 1 8 1 8 Refrigerant R134a R134a R134a R404a R404a Intake Requirements ft min 60 Hertz units 178 178 385 755 755 Shipping Weight Pounds 141 141 200 287 287 Kilograms 64 64 91 130 130 Standard Temp Units Cooling Capacity 6000 I A M 150 60 Hz z 5000 i C M 100 50 Hz 3 4000 C M 100 60 Hz E D M75 60 Hz sw E M75 50Hz 2000 i 1000 2 NESLAB Merlin Series 15 20 25 30 35 Temperature C 1 Atthe chiller Display resolution 1 0 C 0 1 C display resolution is available using the controller s Setup Tuning Loop see page 18 Circulating at 20 C ambient pump unloaded Cooling capacity will varydepending onfluid temperature ambienttemperature and cooling fluid Units with PD 2 pumps Units with CP 55 pumps weigh 310 pounds 141 kilograms Thermo Fisher Scientific reserves the right to change specifications without notice Thermo Scientific Chapter Low Temp Units d si 2500 A M 75 60Hz ae Fluid 50 50 EG Water B B M7550Hz 2000 i C M 33 50 60Hz E D M 25 50 60Hz 3 1500 E C 1000 I
27. 60Hz D PD 2 50Hz o 27 40 D 20 30 B 1 3 20 07 10 1 2 3 4 5 GPM 3 8 76 113 154 189 LPM Flow Bar PSI 35 50 A CP 55 60Hz EI an B CP55 50Hz 8 2 1 30 ef B 14 20 0 7 10 2 4 6 8 10 12 14 16 18 20 GPM 7 6 15 122 730 237 945 453 060 668 175 7 LPM Flow Thermo Scientific NESLAB Merlin Series 5 Chapter1 Side View Rear View UnitDimensions Inches M25 M33 M75 M 100 M 150 Dimension A 23 1 2 23 1 2 26 1 8 30 3 8 30 3 8 Dimension B 12 5 8 12 5 8 16 1 4 21 1 4 21 1 4 Dimension C 20 7 8 20 7 8 24 29 1 4 29 1 4 Dimension D 2 2 2 3 3 Dimension E 18 1 8 18 1 8 20 3 4 25 25 Dimension F 3 3 3 3 3 Dimension G 16 1 4 16 1 4 18 7 8 23 23 Dimension H 1 3 8 1 3 8 1 3 8 1 3 8 1 3 8 Dimension 2 7 8 2 7 8 3 5 8 4 3 4 4 3 4 Dimension J 5 5 7 7 1 2 7 1 2 Dimension K 7 1 8 7 1 8 7 1 8 7 1 8 7 1 8 Dimension L 13 4 13 4 13 4 13 4 13 4 Crate Dimensions 36 x 18 x26 36x18 2x26 39x2214x 29 4 42x27 x 35 42x 27 x 35 H x W x D n Dimension A is the height of the unit Units with CP 55 pumps are 6 higher The unit width and depth dimensions B and C are the case dimensions add approximately 1 2 inch to include the plumbing connections Dimension D is the distance from the floor to the bottom of the unit case height of the casters Dimension E is the distance from the floor to the center of the outlet connection Dimension F is the distance between the cent
28. K hlmittel sollten Sie in regelm igen Abst nden erneuern Wenn Sie das Ger t bei niedrigen Temperaturen betreiben erh ht sich mit der Zeit der Wasseranteil in der K hlfl ssigkeit Dies f hrt zum Verlust von K hlkapazit t Vor dem Austausch der K hlfl ssigkeit erh hen Sie bitte die Betriebstemperatur des Ger tes so weit da die K hlspulen eisfrei sind Regelm iges Absaugen des K hlk rpers ist erforderlich Die Reinigungsh ufigkeit h ngt von der Betriebsumgebung ab Eine monatliche berpr fung des Kondensators ist empfehlenswert So werden Sie nach einigen Monaten einen Reinigungsrhythmus gefunden haben Ger te mit PD Pumpen sind mit einem Pumpenfilter ausgestattet Der Filter verhindert da kleine Teilchen und Schmutzablagerungen in die Pumpe gelangen und so die Pumpenfl gel besch digen Ein verstopfter Filter f hrt zu einem erh hten Druckverlust Nach der ersten Installation kann es zu einer Verunreinigung des Filters kommen Die erste Reinigung sollte daher nach einer Woche erfolgen Danach empfehlen wir eine monatliche berpr fung des Filters So k nnen Sie nach einiger Zeit absch tzen wie oft der Filter gereinigt werden mu Bevor Sie den Filter reinigen ziehen Sie den Netzstecker und entleeren Sie das Ger t Thermo Scientific Verkorte handleiding Thermo Scientific Preface Installatie Het apparaat heeft een luchtgekoeld koelsysteem De luchtinlaat is aan de voorzijde De luchtuitlaat
29. Thermo Scientific En Route Preface 1 INSTALLATION Il s agit d un groupe dont le condenseur est refroidi par air L air est aspir l avant et rejet sur les c t s et l arri re Il faut donc que chaque c t soit suffisamment a r Une mauvaise ventilation affecte la capacit de refroidissement du groupe et peut entrainer des dommages au compresseur Un endroit tr s poussiereux est donc proscrire et un nettoyage p riodique des entr es d air fortement recommand La capacit du groupe reste maximale pour une temp rature ambiante n exc dant pas 25 C S assurer que la tension d alimentation soit celle sp cifi e 10 Volts Les connexions sont situ es l arri re de l appareil diam tre 0 5 pouce FPT sauf pour les versions avec pompe CP 55 dont le diam tre est alors de 3 4 pouce Oter les protections en plastique et connecter le d part et le retour votre application Pour remplir le r servoir oter le panneau et s assurer de la propret et de la bonne compatibilit du fluide utilis 2 MISE EN ROUTE Avant de mettre en route v rifier le branchement lectrique les connexions entre le groupe et votre application et s assurer que le le r servoir soit correctement rempli Placer le bouton l arri re en position haute Pour mettre en route apuyer sur la touche pour teindre appuyer nouveau sut la m me touche Une diode LED s allume pour indiquer que le groupe commence
30. age 12 Hit High temp setpoint warning fault E 23 Shorted external temperature sensor rdt2 Er24 Open exernal temperature sensor rdt2 NESLABMerlinSeries 25 Chapter 4 Displaying Software Version Number 26 NESLAB Merlin Series E 25 Shorted internal temperature sensor rdt Ercb Open internal temperature sensor rtd1 E 33 Reservoir fluid below 1 C standard temp units only LoFL Low process flow warning fault LLF Fluid low level fault unit shuts down Unit reaction to warning fault errors depend on how the unit is configured see Setup Tuning Loop on page 18 The unit is shipped configured to continue running If any other code appears contact our customer service The controller can display the installed software version number For example for a unit with software version 026950 1A 1 Unit is running normally and displaying recirculating fluid temperature 2 Press and hold v for at least 10 seconds The display will show the first two digits for example Ge 3 Press 9 The display will show the remaining digits to the left of the decimal for example 6950 4 Press The display will show the decimal point and the digit to the right of the decimal point for example J 5 Press The display will show the revision letter as its equivalent number for example i A 6 Press Disregard this display 7 Press The display returns to the recirculating fluid temperature Thermo Scientific Chapt
31. anufacturer s warranty A Acceptable fluids and their normal operating temperature ranges are Filtered Single Distilled water 5 C to 35 C 10 C to 35 C for low temperature units 50 50 Uninhibited Ethylene Glycol Water 15 C to 35 C 50 50 Inhibited Ethylene Glycol Water 15 C to 35 C 50 50 Uninhibited Propylene Glycol Water 15 C to 35 C 50 50 Inhibited Propylene Glycol Water 15 C to 35 C Deionized water 1 3 MQ cm compensated 5 C to 35 C 10 C to 35 C for low temperature units Ethylene glycol EG is hygroscopic it will absorb water from its environment This can affect the freezing point and boiling point AN of the fluid over time This may result in system failure A When using EG water or PG water top off with EG water or PG water Do not top off with plain water Topping off with plain water can severely affect the freezing point and boiling point of the fluid This may result in system failure A Inhibited PG A DI filter will remove inhibitors from the solution rendering the fluid ineffective against corrosion protection Also inhibitors increase fluid conductivity A Do not use a Deionization DI filter with Inhibited EG or Refer to Appendix A for additional information Thermo Scientific NESLAB Merlin Series 11 Chapter 2 Fi i ng The polyethylene reservoir is translucent for easy fluid level monitoring P Remove the reservoir access panel see pr
32. bearings with large reservoirs Oiling H i i i lly posted on each motor In the absence of Lubrication i0structions are generally p ubricatio instructions add approximately 30 to 35 drops of SAE 20 142 CS viscosity non detergent oil i e 3 IN ONE Tool Oil to each bearing on the following schedule Duty Cycle Oiling Frequency Continuous Once every year Intermittent Once every 2 years Occasional Once every 5 years Fill Holes Typical m Thermo Scientific NESLAB Merlin Series 31 Chapter 4 Storage A BOM Decoder Temperature Sensor 32 Calibration NESLAB Merlin Series If the unit is to be transported and or stored in cold temperatures it needs to be drained and then flushed with a 50 50 glycol water mixture A The Bill of Material BOM number helps identify the configuration of your unit The number is printed on the label located on the rear of the unit Do 1 2 3 4 5 6 i 9 10 11 12 v Temp Range Pump Reserved 1 Standard 02 CP 55 000 2 Low Temp 03 PD 1 v 04 PD 2 Unit Identifier Veltage Options 262 M25 02 100 60 0 None 263 M33 12 115 60 1 LL LF 264 M75 16 200 230 60 200 50 2 RS 232 amp Rmt Start 265 M100 25 230 50 3 RS 485 amp Rmt Start 266 M150 26 400 50 5 wire 4 LL LF RS 232 amp Rmt Start 5 LL LF RS 485 amp Rmt Start Internal Sensor If the temperature fluid temperature display disagrees with y
33. bles show all commands available their format and responses Controller responses are either the requested data or an error message The controller response must be received before the host sends the next command The host sends a command embedded in a single communications packet then waits for the controller s response If the command is not understood or the checksums do not agree the controller responds with an error command Otherwise the controller responds with the requested data If the controller fails to respond within 1 second the host should resend the command NESLAB Merlin Series 47 Appendix B NOTE All byte values are shown in hex hex represents the binary values that must be sent to the chiller Do not use ASCII A The framing of the communications packet in both directions is Checksum region Lead char Addr MSB Addr LSB nd bytes d byte1 d byte n CAorCC 0 1 Lead char OxCA RS 232 OxCC RS 485 Device address is 1 RS 232 Addr msb Most significant byte of device address RS 232 0 Addr Isb Least significant byte of device address is 1 RS 232 Command Command byte see Table 1 n d bytes Number of data bytes to follow 00 to 03 hex d byte 1 18 data byte the qualifier byte is considered a data byte d byte n n data byte Checksum Bitwise inversion of the 1 byte sum of bytes beginning with the most significant address byte and ending with the byte preceding the checksum To perform a bitw
34. c
35. dard units 1 C to 53 C for low temperature range units The factory default settings are 30 C and 50 C respectively The loop can also be used to set the controller s PID parameters Coal HEHE The factory preset values are on page 27 Thermo Fisher recommends that only a qualified technician change PID parametets Incorrect PID values will hamper unit performance A The heat PID is only applicable to units configured with a heater The loop is also used to adjust verify serial communication parametets SE This section of the loop is applicable only to units configured for serial communications capability Changes made in the Tuning Setup Loop take affect when is pressed at the 5Eorprompt Pressing W at the prompt aborts 4 changes Thermo Scientific Thermo Scientific 1920 A 800 wy 8 EEn A add aont IV A v 100 A i v v 33 3 A Accept All Changes Chapter2 Indicates Optional Displays RS 485 only NESLAB Merlin Series 19 Chapter2 20 NESLAB Merlin Series Thermo Scientific Communication Thermo Scientific Connector Chapter 3 Options This chapter contains information about available options 54321 er AA m 0000 ELEIT L 4 9876 A female 9 pin D connector is located on the rear of the unit The connector is used for either RS 232 or RS 485 serial communication see Appendix B When the unit is configured for serial communication the
36. e Department for assistance see Preface After sale Support Before calling please obtain the following information Before calling please obtain the following information e unit BOM number e unit serial number e unit software version page 26 e voltage of power source NESLAB Merlin Series 39 Chapter 5 40 NESLAB Merlin Series Thermo Scientific Thermo Scientific Contaminants Appendix A Water Quality and Standards Permissible PPM Desirable PPM Microbiologicals algae bacteria fungi 0 0 Inorganic Chemicals Calcium 40 0 6 Chloride 250 25 Copper 13 1 0 Iron 0 3 0 1 Lead 0 015 0 Magnesium 12 0 1 Manganese 0 05 0 03 Nitrates Nitrites 10asN 0 Potassium 20 0 3 Silicate 25 1 0 Sodium 20 0 3 Sulfate 250 lt 50 Hardness lt 17 lt 0 05 Total Dissolved Solids lt 50 lt 10 Other Parameters pH 6 5 8 5 7 8 Resistivity 0 01 0 05 0 1 MQ cm Compensated to 25 C Unfavorably high total ionized solids TIS can accelerate the rate of galvanic corrosion These contaminants can function as electrolytes which increase the potential for galvanic cell corrosion and lead to localized corrosion such as pitting which can be observed at the studs and on the outside surface of cooling coils Eventually the pitting will become so extensive that the coil will leak refrigerant into the water reservoir For example raw water in the U S averages 171 ppm of NaCl The reco
37. er 4 Controller PID Values The factory preset PID values are Thermo Scientific A Cleaning A P I D COOL STD TEMP UNITS 20 0 5 0 0 LOW TEMP UNITS 12 0 5 0 0 HEAT ALLUNITS 5 0 5 0 0 Thermo Fisher recommends that only a qualified technician change PID parameters Incorrect PID values will hamper unit performance 4 Reservoir Periodically inspect the fluid inside the reservoir If cleaning is necessary flush the reservoir with a cleaning fluid compatible with the circulating system and the cooling fluid The cooling fluid should be replaced periodically Replacement frequency depends on the operating environment and amount of usage Before changing the cooling fluid ensure it is at a safe handling temperature A NOTE It will be necessary to use a wet vac or siphon to completely drain the reservoir Use care so as not to damage the reservoir float switch 4 See page 12 Filling Requirements for instructions on cooling fluid replacement Condenser For proper operation the unit needs to pull substantial amounts of air through a condenser A build up of dust or debris on the fins of the condenser will lead to a loss of cooling capacity Optional air filters are available contact our Service Department Sce Preface After Sale Support NT The lower front of the unit has a one piece grille assembly Using your hands gently pry the assembly off Use care not to scratch the paint Petiodic vacuuming of the conde
38. er of the outlet and inlet connections Dimension G is the distance from the floor to the center of the pressure relief valve units with PD pumps Dimension H is the distance from the unit s side to the center of the outlet inlet connections and the pressure relief valve 2 from the unit s side to the center of the outlet inlet connections for M 100 150 units with CP 55 pumps Dimension I is the distance from the unit s side to the center of the drain connection 5 1 4 for M 100 150 units with CP 55 pumps Dimension J is the distance from the floor to the center of the drain connection 7 1 2 for M 100 150 units with CP 55 pumps Dimension K is the distance from the top of the unit to the center of the power connection 10 Dimension L is the distance from the unit s side to the center of the power connection NA for M 100 150 units rated 400V 50Hz 11 Crate dimensions for units with CP 55 pumps are 6 inches higher All packages tested to ISTA 2B aA ULUN ooN 6 NESLAB Merlin Series Thermo Scientific Site Direction of Airflow Thermo Scientific Chapter 2 Installation and Operation Ambient Temperature Range 10 C to 35 C 50 F to 94 F Relative Humidity Range 10 to 80 non condensing Operating Altitude Sea Level to 6000 feet 1830 meters Overvoltage Category Il Pollution Degree 2 The unit retains its full rated capacity in ambient temperatures up to approxi mately 25 C 77 F Reduce the cooling capac
39. es 17 Chapter2 18 Setup Tuning Loop NESLAB Merlin Series The Setup Tuning Loop see illustration next page is used to configure the controller temperature display and various operating parameters To enter the loop you must be displaying the reservoir fluid temperature and then while pressing and holding W press The display will indicate EunE Use the arrow keys to enter bypass the loop Once in the loop press to sequence through it Use the arrow keys to change any display The loop is used to determine how the unit will react when a fault occurs FLES either shut down on or continue to run oFF The unit is shipped configured to run It is also used to configure the temperature displays to indicate to a tenth of a degree EE nt The loop is used to select which temperature sensor the high and low temperature monitors will use AP b rk di is the internal sensor rt d C is the optional external sensor rt de is dispayed only if the optional external sensot is enabled If the optional external remote probe is enabled the loop is used to set the remote probe temperature deviation Pr d limit This limit is applied to the setpoint to calculate the minimum fluid temperature supplied to your application For example if the setpoint is 10 C and the deviation is set to 3 C the coldest fluid temperature supplied to your application will be limited to 7 C The deviation can be set from 1 C to 33 C for stan
40. eservoir overflow To close the upper valve open the reservoir access panel to close the lower valve you must remove the side access panel Turn the valves 90 12 NESLAB Merlin Series Thermo Scientific Chapter2 Controller The controller controls temperature using a Proportional Integral Derivative PID algorithm It is designed with self diagnostic features and easy to use operator interface Use this key to toggle the unit on or off Use this key to scroll through the controller s LEDs It is also used to accept and save changes mn If the alarm sounds use this key to toggle the alarm off and Ji on NOTE If the cause of the alarm is cleared but then reoccuts the alarm will sound again Use this key to decrease displayed numerical values Indicates refrigeration system status It illuminates to indicate the refrigeration system is removing heat from the cooling fluid As the operating temperature approaches the temperature setpoint the LED will flash The indicator is off when heat is not being removed A Use this key to increase displayed numerical values Thermo Scientific NESLAB Merlin Series 13 Chapter2 NOTE The following indications are not visible until 9 is depressed A gt Indicates the controller is displaying the setpoint Adjust the display value using the arrow keys NOTE You cannot adjust the setpoint closer than 2 C to either of the temperature limits discussed below A
41. etriebnahme Vor Inbetriebnahme des Ger tes vergewissern Sie sich bitte nochmalig da die elektrischen Anschl sse und die Rohr u Schlauchanschl sse sachgem installiert sind und das gesamte System mit K hlfl ssigkeit gef llt ist Um das Ger t einzuschalten m ssen Sie erst den Hauptschalter an der R ckseite des Ger tes auf Ein stellen und dann dr cken Zum Abschalten des Ger tes erneut dr cken NESLAB Merlin Series xvii Preface xviii NESLAB Merlin Series Die LED Anzeige an der Anzeigetafel leuchtet auf so lange das K hlsystem der K hlfl ssigkeit W rme entzieht Ist die gew nschte Temperatur erreicht setpoint blinkt die LED Anzeige Einstellung der Temperatur Um den Temperatursollwert anzuzeigen dr cken Sie die Taste des Controllers Die ej LED leuchtet und die Anzeige blinkt mit dem eingestellten Sollwert Um den Temperatursollwert zu ndern dr cken Sie Pfeiltasten bis dere gew nschte Sollwert in der Digitalanzeige angezeigt wird Dr cken Sie die Taste erneut um den Wert zu best tigen Die Digitalanzeige zeigt kurz den neu eingestellten Sollwert schnell blinkend um dann wieder die Temperatur der K hlfl ssigkeit anzuzeigen Wartung berpr fen Sie regelm ig die K hlfl ssigkeit im Reservoir Sollte eine Reinigung notwendig sein sp len Sie das Reservoir mit einer speziellen Reinigungsfl ssigkeit die f r das Leitungssystem und die K hlfl ssigkeit geeignet ist Das
42. evious page Locate and remove Requirements the reservoir cap Fill the reservoir with clean cooling fluid Since the reservoir capacity may be small compared to your application have extra cooling fluid on hand to keep the system topped off when external circulation is started o Fill to here E Reservoir 10 T 14 T Isolation Valves pe CH Upper Left Side of Unit Panel Removed Minimum fill level Reservoir Tank Units are equipped with two reservoir tank isolation valves The valves are S used to isolate the tank from the fluid flow The units are factory shipped Isolation Valves with the valves open Open Tank Ci rcu la tion Ensure the valves are open when circulating to a closed system When operating at low temperatures and circulating to a closed system should condensation appear on the reservoir closing the upper valve after initial start up will help eliminate it Leave the valve open for initial start up so process fluid flow through the reservoir can rapidly bleed air from the system To close the upper valve open the reservoir access panel and turn the valve 90 System temperature changes with the isolation valves closed and while circulating to a closed system can create a vacuum and or high pressure conditions A If your application requires the process fluid to flow to an open tank located above the unit before starting close the valves to prevent fluid siphoning and r
43. f or recycled through them Further information on Thermo Fisher Scientific s 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 WEEERoHS NESLAB Merlin Series iii Preface After sale Support Feedback Warranty iv NESLAB Merlin Series Thermo Fisher Scientific is committed to service both during and after the sale If you have questions concerning operation contact our Sales Department If your unit fails to operate properly or if you have questions concerning spare parts or Service Contracts contact our Service Department Before calling please obtain the following information e unit BOM number see page 32 e unit serial number e unit software version see page 26 e voltage of power source The unit s BOM and serial number are located on the name plate label on the rear of the unit Thermo Fisher Scientific Newington NH 03801 U S A 800 258 0830 603 436 9444 NN S N XXXXXXXXX XXX VOLT XX HZ XPH X XAMP R134A X XOZ HIGH XXX PSI LOW XXXPSIG We appreciate any feedback you can give us on this manual Please e mail us at thermoscientificmanuals thermofisher com Be sure to include the manual part number and the revision date listed on the front covet Thermo Scientific NESLAB Metlin units have a warranty against defective part
44. filtru se doporu uje v m s n ch intervalech Po n kolika mes c ch se na z klade zku enosti stanov vhodn interval kontroly istoty filtru P ed i t n m odpojte p vodn kabel od zdroje elektrick energie a vypustte z jednotky cirkulacni kapalinu Thermo Scientific Preface Forenklet bru Innstalajon kermanu al Kjoleren er ett luftkjolt system Luften g r inn foran og g r ut p siden og bak kjoleren Plass r derfor alltid kjoleren s det er god plass rundt D rlig luftgjennomstr mning vil kunne for rsake d rlig kjolekapasitet og i verste fall kan det for rsake skader p kompressoren Kjoleren bor ikke plasseres i ekstremt skitne rom og periodevis rengjoring m utfores Lag gjerne et skjema og heng det ner kjoleren For at kjoleren skal virke ordentlig trenger den stor luftgjennomstromning 1 kondensator N r kondensatoten tettes med stov eller det blir varmere enn 25 C i rommet vil dette fore til tap av kjolekapasitet Kjoleren har full kjolekapasitet opp til 25 C 77 F rom temperatur Ver sikker p at strom spenning moter de spesifiserte verdier 10 Rortilkoblinger er plassert bak p kjoleren og er p satt propper for beskyttelse St rrelsen p ror tilkoblinger er 1 2 inch FPT gjenger inch FPT gjenger for kjolere med CP 55 pumpe Ta bort plastikkpropper fra begge kuplingene og tilkoble deretter rorene Ut fra kjoler til inntak p applikasjonen Inn p kjoler fra
45. fluido refrigerante Il fluido refrigerante dovrebbe essere periodicamente sostituito in base alle condizioni ambientali ed al tempo di utilizzo Prima di cambiare il fluido refrigerante assicurarsi che esso sia ad una temperatura di sicurezza Periodicamente soffiare il condensatore se necessario Anche in questo caso la frequenza dell operazione dipende esclusivamente dalle condizioni ambientali Si consiglia almeno un controllo mensile visivo dopo l installazione cosi da valutare una approptiata frequenza di pulizia Le unit nelle quali sono installate delle pompe del tipo PD sono dotate di un filtro che trattiene eventuali impurit solide evitandone il flusso attraverso la pompa stessa Una settimana dopo l installazione iniziale si consiglia di pulire accuratamente questo filtro in quanto l intasamento di quest ultimo potrebbe causare un incremento nella pressione di mandata della pompa Dopo la prima pulizia controllare mensilmente le condizioni del filtro in modo da valutare un appropriata frequenza di pulizia Prima di procedere alla pulizia del filtro disconnettere la tensione di alimentazione e svuotare il serbatoio dal fluido refrigerante tramite l apposito scarico posizionato nel retro dell unit xvi NESLAB Merlin Series Thermo Scientific Thermo Scientific Kurzbedienung sanleitung Preface Installation Das Ger t verf gt ber ein luftgek hltes K hlsystem Die Luft wird an der Vorderse
46. harge for parts or labor The unit including any defective part must be returned to an authorized Thermo Fisher Repair Depot within the warranty period The expense of returning the unit to the authorized Thermo Fisher Repair Depot for warranty service will be paid for by the buyer Our responsibility in respect to warranty claims is limited to performing the required repairs or replacements and no claim of breach of warranty shall be cause for cancellation or recision of the contract of sales of any unit With respect to units that qualify for field service repairs Thermo Fisher Scientific s responsibility is limited to the component parts necessary for the repair and the labor that is required on site to perform the repair Any travel labor or mileage charges are the financial responsibility of the buyer The buyer shall be responsible for any evaluation or warranty service call including labor charges if no defects are found with the Thermo Scientific product This warranty does not cover any unit that has been subject to misuse neglect or accident This warranty does not apply to any damage to the unit that is the result of improper installation or maintenance or to any unit that has been operated or maintained in any way contrary to the operating ot maintenance instructions specified in this Instruction and Operation Manual This warranty does not cover any unit that has been altered or modified so as to change its intended use In addition
47. he current reservoir temperature A Once the desired status is displayed press again to confirm the change The display will rapidly flash the new status for a short period and then return to the recirculating fluid temperature NOTE If the status is not confirmed within 60 seconds the display will return to the recirculating fluid temperature and ignore any change A NOTE Enabling serial communications disables the remote start stop feature In either mode the setpoint and alarm values can not be changed using the controller but they can still be viewed A Thermo Scientific Thermo Scientific External Sensor Stopping PPP Chapter2 Optional Once the external sensor cable is connected to the unit enable or disable the sensor by pressing a fifth time The display will alternate with r Fr and either om or of F If desired use the arrow keys to change the status and then press to return to the temperature display See page 23 for additional information To turn the unit off press When the display goes blank it is safe to place the circuit protector located on the rear of the unit to the down position Using any other means to shut the unit down can reduce the life of the compressor A The circuit protector located on the rear of the unit is not intended to be used as a disconnecting means A Always turn the unit off and disconnect it from its supply voltage before moving the unit A NESLAB MerlinSeri
48. il pannello frontale trasparente Per le caratteristiche del fluido riferirsi a pagina 11 Messa in servizio Assicurarsi che le connessioni elettriche ed il livello di riempimento del fluido refrigerante siano appropriati Attivare l interruttore differenziale locato sul retro dello strumento spostando la leva di attuazione nella posizione alta Per attivare lo strumento premere Per disattivare lo strumento premere Sul pannello di controllo frontale presente un LED che indica lo stato di funzionamento del sistema di refrigerazione Nel caso in cui il LED sia illuminato il sistema sta rimuovendo il calore dal fluido refrigerante Quando la temperatura controllata raggiunge il set point impostato il LED continuer a lampeggiare NESLAB Merlin Series xv Preface Impostazione della temperatura Per visualizzare il set point della temperatura premere sul controller il tasto impostazione della temperatura pi Un segnale luminoso indicher la funzione di settaggio ed il display ad intervalli regolari visualizzer il set point che potr essere modificato premendo 9 Una volta effettuata la variazione premere il tasto di conferma pet memorizzare la nuova impostazione che vetr brevemente visualizzata sul display Manutenzione periodica Ispezionare periodicamente la tanica di riserva del fluido Se fosse necessaria una pulizia utilizzare un fluido compatibile con il sistema idraulico di circolazione ed il
49. ise inversion exclusive OR the one byte sum with FF hex The master requests information by sending one of the Read Functions as shown in Table 1 Since no data is sent to the chiller during a read request the master uses 00 for the number of data bytes following the command byte The chiller will respond to a Read Function by echoing the lead character address and command byte followed by the requested data and checksum When the chiller sends data a qualifier byte is sent first followed by a two byte signed integer 16 bit MSB sent first The qualifier byte indicates the precision and units of measure for the requested data as detailed in Table 2 As an RS 232 example the master requests to read internal temperature unit address 01 by sending The checksum is the bitwise Ge x 7 inversion of21 CA 00 01 20 00 DE 002000 0 bytes of data byte values are in hex If the temperature is 12 C the unit would reply The qualifier byte of 01 indicates a precision of 0 decimal point and units of C The temperature of 12 C is 12 decimal FFF4 hex command byte CA 00 01 20 03 01 FF F4 E7 The checksum is the bitwise inversion of 18 00 01 20 03 01 FF F4 218 Take the LSB 18 3 bytes to follow ARE NG Bitwise inversion E7 48 NESLAB Merlin Series Thermo Scientific Appendix B The master sets parameters in the chiller by sending one of the Set Functions as shown in Table 1 The master does not send a qua
50. ite angesaugt und str mt an den Seitenw nden und an der R ckseite aus Das Ger t mu so plaziert werden da weder die Ansaug noch die Ausstr m ffnungen blockiert sind Bei ungen gender Ventilation wird die K hlleistung reduziert und kann in extremen Situationen zum Ausfall des K hlsystems Kompressor f hren Vermeiden Sie Aufstellorte mit hoher Staubentwicklung und reinigen Sie das Ger t in regelm igen Abst nden Um eine einwandfreie Funktion zu gew hrleisten mu das Ger t ausreichend Luft Zu und Abfuhr haben Bei Staub und Schmutzablagerungen auf dem Kondensator kommt es zu einem Verlust an K hlleistung Das Ger t arbeitet mit seiner maximalen K hlleistung bis zu einer Umgebungstemperatur von ca 25 C Vergewissern Sie sich da die Netzspannung mit der f r das Ger t vorgesehenen Spannung bereinstimmt 3109 6 Die Schlauchanschl sse des Ger tes befinden sich an der R ckseite und sind mit gt und bezeichnet Die Anschl sse haben ein V2 Zoll FPT Innengewinde bzw Zoll FPT bei Ger ten mit CP 55 Pumpe Bitte entfernen Sie die Kunststoff Schutzkappen von den Anschl ssen Schlie en Sie den gt an den Eingang Ihres Instruments und den an den Ausgang Ihres Instruments an Um das Reservoir zu f llen ffnen Sie den Reservoir Schutzdeckel Entfernen Sie den Reservoir verschlu und bef llen Sie das Reservoir mit sauberer K hlfl ssigkeit Geeignete Fl igkeiten finden Sie auf Seite 11 Inb
51. ity 1 for every 0 5 C 1 F above 25 C 77 F up to a maximum ambient temperature of 35 C 94 F Never place the unit in a location where excessive heat moisture or corrosive materials are present A The unit has an air cooled refrigeration system Air is drawn through the front of the unit and discharged through rear and side panels The unit must be positioned so the intake and discharge are not impeded A minimum clearance of 3 feet 1 meter on all vented sides is necessary for adequate ventilation Inadequate ventilation will cause a reduction in cooling capacity and in extreme cases compressor failure Excessively dusty areas should be avoided and a periodic cleaning schedule should be instituted see Chapter 4 Maintenance Optional air filters are available contact out Service Department See Preface After Sale Support NESLAB Merlin Series 7 Chapter 2 Electrical Requirements The unit construction provides protection against the risk of electrical shock by grounding appropriate metal parts The protection may not A function unless the power cord is connected to a properly grounded outlet It is the user s responsibility to assure a proper ground connection is provided A The user is responsible to ensure that the power cord provided meets local electrical codes If not contact qualified installation personnel The unit is intended for use on a dedicated outlet The Merlin has an internal
52. l flash and the alarm will momentarily sound The unit has automatic restart If the unit was shutdown as a result of a power failure and power is restored it will restart A Press The controller will do a self test the controller will guickly sequence through its LEDs and momentarily sound the alarm and then display the recirculating fluid temperature The refrigeration system and the recirculation pump will then start The RECIRCULATING PRESSURE gauge will display the pump operating pressure If the pressure needs adjusting refer to page 29 NOTE If on start up the unit s recirculating fluid is outside either temperature limit the unit will operate but the appropriate indicator will flash until the fluid is within the limit 4 To display change the setpoint press until dk illuminates The display will flash the current setpoint value Use the arrow keys to change the value NOTE If the arrow keys are not pressed within 10 seconds the display will return to the current reservoir temperature The controller will not allow you to enter a setpoint closer than 2 C of either temperature alarm setting discussed on the next page Trying to use a setpoint within 2 C causes the appropriate indicator to flash and sounds the audible alarm twice A NESLAB Merlin Series 15 Chapter2 16 Temp Alarms Remote Serial Comm NESLAB Merlin Series Once the desired setpoint 1s displayed press again to confirm the change The displa
53. l shut down See Error Codes on page 25 Press to restart the unit The external probe can be used to control the high and low temperature monitors using the Setup Tuning Loop see page 18 NOTE If you also need to monitor status while using the external sensor an optional Y connector cable is available from Thermo Fisher 4 NESLAB Merlin Series 23 Chapter 3 Reservoir Level Warning Fault Low Pump Flow Warning Fault Additional Accessories 24 NESLAB Merlin Series Should the reservoir fluid level drop below normal the mutable alarm will sound the status relay will de energize if the unit is equipped with the communications package an error message will be displayed and depending on the unit s configuration the unit will continue to run or shut down The unit is configured to run or shut down using the controller s Setup Tuning Loop on page 18 Refill the reservoir and if necessary restart the unit NOTE The unit will not start without any fluid in the reservoir regardless of how it is configured A Should the pump flow drop below 0 5 gpm 1 0 gpm for units with a CP 55 pump the mutable alarm will sound the status relay will de energize if the unit is equipped with the communications package an error message will be displayed and depending on the unit s configuration the unit will continue to run or shut down Once the cause of the low flow is identified and corrected restart the unit if necessary
54. lash with arrow symbol within an equilateral triangle is intended to alert the user to the presence of non insulated dangerous voltage within the unit s enclosure The voltage may be of significant enough magnitude to constitute a risk of electrical shock Make sure you read and understand all instructions and safety precautions listed in this manual before installing or operating your unit If you have any questions concerning the operation of your unit or the information in this manual please contact our Sales Department see After sale Support Never place the unit in a location where excessive heat moisture or corrosive materials are present A The unit construction provides protection against the risk of electrical shock by grounding appropriate metal parts The protection may not function unless the power cord is connected to a properly grounded outlet It is the user s responsibility to assure a proper ground connection is provided 4 Never connect the process fluid inlet or outlet fittings to your building water supply or any water pressure source A Never use flammable or corrosive fluids with this unit Highly distilled and deionized water may be aggressive and cause material corrosion Please contact Thermo Fisher before subjecting this unit to prolonged exposure to highly distilled or deionized water A Do not use automotive antifreeze Commercial antifreeze contains silicates that can damage the pump seals Use of auto
55. lifier byte in the data field The master should be preprogrammed to send the correct precision and units it could also read the parameter of interest first to decode the correct precision and units needed For example if the master wants to set the setpoint to 30 C it would send The checksum is the bitwise inversion of 11 00 01 F0 02 00 1E 111 command byte Take the LSB 11 CA 00 01 FO 02 00 1E EE 2 bytes to follow The temperature of 30 C is 30 decimal 001E hex The unit responds The qualifier byte of 01 indicates a precision of 0 decimal point and units of C The temperature of 30 C is 30 decimal 001E hex command byte CA 00 01 FO 03 01 00 1E EC The checksum is the bitwise inversion of 13 00 01 F0 03 01 00 1E Take the LSB 13 3 bytes to follow Table 1 Commands All bytes are in hex FUNCTION MASTER SENDS UNIT RESPONDS Read Acknowledge CA 00 01 00 00 FE CA 00 01 00 02 v1 v2 cs Read Status see Table 3 CA 00 01 09 00 F5 CA 00 01 09 02 d1 d2 cs Error CA 00 01 OF 02 en ed cs Read Internal Temperature RTD1 Read External Temperature RTD2 Read Setpoint control point Read Low Temperature Limit Read High Temperature Limit Read Cool Proportional Band P Read Cool Integral 1 Read Cool Derivative D Read Heat Proportional Band P Read Heat Integral I Read Heat Derivative D command bytes shown in bold qb qualifier byte see Table 2 CA 00 01 20 00 DE CA 00 01 21 0
56. location apply the correct voltage to pins 6 amp 8 When the unit is started by a remote start stop voltage E on the controller will flash Once started remotely stop the unit by removing the applied voltage from pins 6 amp 8 or by pressing on the local controller To restart remotely after stopping locally remove and reapply the remote start voltage to J101 NOTE Enabling serial communications disables the remote start stop feature A Should the unit experience a high low temperature warning fault a reservoir level warning fault or a low pump flow warning fault the status relay will de energize The pin out information is Status Common ardware Mating Connector AMP Part 745491 2 or equivalent Pin Function Pin Function 1 NoConnection 6 Remote On 2 Status NO 7 RTD2B 3 Status NC 8 Remote On 4 RTD2A 9 No Connection 5 H 12 to 24 Volts DC 10 maximum input current 9ma 12 to 24 Volts AC 10 maximum input current 5ma 40 volts rms continuous 56 volts peak Rating for both normally open and normally closed status relay contacts are Maximum rated load 1 0 Amp 24 Volts AC DC resistive Minimum permissible load 1 ma 5 VDC Thermo Scientific External Temperature Thermo Scientific Sensor Chapter 3 Connect the external sensor to the male 9 pin D connector located on the rear of the unit see previous page The external temperature sensor is enabled using the controller With the co
57. low Tank Fittings Brass Strainer Bronze 304 Stainless Steel Mesh Tank Cap Nylon NESLAB Merlin Series 45 Appendix A 46 NESLAB Merlin Series Thermo Scientific Thermo Electron Corporation AppendixB NC Serial Communications Protocol NOTE This appendix assumes you have a basic understanding of communications protocols A All data is sent and received in binary form do not use ASCII In the following pages the binary data is represented in hexadecimal hex format The NC Serial Communications Protocol is based on a master slave model The master is a host computer while the slave is the chiller s controller Only the master can initiate a communications transaction half duplex The slave ends the transaction by responding to the master s query The protocol uses an RS 232 RS 485 serial interface with the default parameters 9600 baud 8 data bits 1 stop bit no parity and no RS 232 handshaking RS 485 offers a a slave address selection from 1 to 100 default parameter 1 NOTE Before the unit will communicate ensure the V indicator is illuminated 4 The unit can be controlled through your computer s serial port by using the unit s standard 9 pin connection see Chapter 3 for pin out information Communication cables are available from Thermo Fisher Contact our sales department for additional information All commands must be entered in the exact format shown in the tables on the following pages The ta
58. m na se potvrd op tovn m stisknut m kontroln ho tla tka Po potvrzen se zobraz nov po adovan hodnota rychl m blik n m displeje pot se zobraz aktu ln teplota extern cirkulacni kapaliny Pravideln drzba Pravideln kontrolujte stav a kvalitu kapaliny v rezervo ru Pokud je t eba prov st vy i t n pou ijte kapalinu kter je shodn nebo kompatibiln s pou vanou cirkula n kapalinou Cirkulaen chladic kapalinu je t eba pravideln obm ovat Interval obm ny z vis na st vaj c ch podm nk ch a stupni zat en P ed v m nou cirkulacni kapaliny se pros m ujist te e nem nebezpe nou teplotu Nezbytnou nutnost je pravideln i t n eber kondenz toru pomoc vysava e Interval i t n z vis na podm nk ch V robce doporu uje prov d t vizu ln k ntrolu a p padn i t n chladic ch eber kondenz toru ka d m s c Po ase se na z klad zku enosti stanov optim ln term n i t n kter je treba d sledn dodr ovat Jednotky s PD erpadly maj v okruhu cirkula n kapaliny za azen filtr Filtr m za kol zachycovat mechanick necistoty a zabr nit tak po kozen lopatek erpadla Zanesen filtr zp sob zv en tlaku cirkula n kapaliny P i prvn m uveden do provozu se mu e filtr snadno zan set Po uplynut jednoho t dne od uveden do provozu je t eba filtr vy istit Dal kontrola a i t n
59. mmend draining the reservoir The strainer is in the pump return line the exact location depends on the unit s configuration For most configurations it is located behind the rear panel For units configured with low level and low temperature switches it is behind the right side panel Brass Cap some units only BA Brass Cap some units only Screen Ba Screen Fitti 4 gt Fitting B i S g 19 or 1 0r 34 Right side view Rear view NOTE A small amount of fluid will come out of the internal strainer housing when the fitting is removed Have a rag handy to put under the housing before removing the fitting A 30 NESLAB Merlin Series Thermo Scientific Chapter 4 Remove the panel from the unit Use one wrench to support the filter housing and a second wrench to unscrew the fitting 1 inch for CP pumps or inch for PD pumps Remove the screen NOTE Some units with inch fittings also have a brass end cap see illustration below 4 Clean the screen by rinsing it with water When the screen is clean replace it and the cap Tighten the fitting and replace the panel Refer to Section III for instructions on replacing the cooling fluid NOTE An external strainer accessory kit is available to make routine strainer preventative maintenance easier The part number is 627000000010 A PD Pump Motor some PD pumps use sleeve type
60. mmended level for use in a water system is between 0 5 to 5 0 ppm of NaCl Recommendation Initially fill the tank with distilled deionized water Do not use untreated tap water as the total ionized solids level may be too high NESLAB Merlin Series 41 42 Appendix A NESLAB Merlin Series The desired level for long time usage is 1 to 3 MQ cm compensated to 25 C This will reduce the electrolytic potential of the water and prevent ot reduce the galvanic corrosion observed Resistivity MQ cm 25 C Not Recommended Increasingly Corrosive 15 00 10 00 Operations with Stainless Steel Systems 3 00 1 00 Operations with Mixed Metals Copper Brass 0 10 0 05 Stainless Steel 10 20 30 40 50 60 70 80 de Water Quality Considerations Thermo Scientific Appendix A Compatibility with Recommended Fluids Never use flammable or corrosive fluids with this unit Do not use automotive antifreeze Commercial antifreeze contains silicates that can damage the pump seals Use of automotive antifreeze will void the manufacturer s warranty A Filtered Single Distilled water 5 C to 35 C This fluid is recommended primarily because it has all microorganisms that cause biological fouling removed through vaporizing and condensing the water However distilled water does not remain pure for very long when exposed to the atmosphere Air born spores can contaminate the water and activate algae growth An effective mai
61. motive antifreeze will void the manufacturer s warranty A vi NESLAB Merlin Series Thermo Scientific Thermo Scientific Preface In addition to the specific warnings listed on the previous page the following general warnings also apply to your unit Performance of installation operation or maintenance procedures other than those described in this manual may result in a hazardous situation and may void the manufacturer s warranty A Transport the unit with care Sudden jolts or drops can damage the unit s components A If the unit is to be transported and or stored it needs to be drained If the unit is to be transported and or stored in cold temperatures it needs to be drained and then flushed with a 50 50 glycol water mixture A The circuit protector located on the rear of the unit is not intended to be used as a disconnecting means A Observe all warning labels A Never remove warning labels A Never operate damaged or leaking equipment A Never operate the unit without cooling fluid in the reservoir A Always turn off the unit and disconnect the power cord from the power source before performing any service or maintenance procedures or before moving the unit A Never operate equipment with damaged power cords A Refer service and repairs to a qualified technician A NESLAB Merlin Series vii Preface Indicates refrigeration system status See page 13 _ Optional Flashes to indicate the external sens
62. n PD pomp hebben een filter Het filter beschermt de pomp tegen deeltjes die in het vloeistofcircuit kunnen komen Een vies filter zal de druk in het koelcircuit verhogen Na de eerste opstart is er een verhoogde kans op een vervuild filter Maak na n week het filter schoon Wij adviseren een maandelijkse inspectie van het filter Na een aantal maanden kunt u de frequentie van inspecties aanpassen Haal de stekker uit het stopcontact voordat u het filter gaat schoonmaken Thermo Scientific Thermo Scientific Strucny n vod k obsluze Preface Instalace Jednotka je chlazena vzduchem Vzduch je nas v n pr dn m panelem a je odv d n bo n mi panely a zadn m panelem V dy um st te jednotku tak aby nebyl kladen odpor proud n vzduchu V opa n m p pade dojde ke sn en chladic ho v konu a v extr mn ch p padech i k poru e kompresoru Je t eba se vyvarovat nadm rn pra n ho ptostred a stanovit a dodr ovat interval pravideln ho i t n kondenz toru Pro spr vnou funkci jednotky je tr ba aby kondenz torem proudilo dostate n mno stv vzduchu sady prachu a ne istot na ebrech kondenz totu se projev sn en m chladic ho v konu Jednotka je schopna pod vat deklarovan chladic v kon a do okoln teploty 25 C Nap jec nap t nesm p ekro it nomin ln hodnotu 10 P ipojen okruhu cirkula n kapaliny se prov d pomoc p pojek um st n ch na zadn m
63. nser fins is necessary The cleaning frequency depends on the operating environment After initial NESLAB Merlin Series 27 Chapter 4 installation we recommend a monthly visual inspection of the condenser After several months the cleaning frequency will be established Use care cleaning the condenser fins they can be easily bent A Algae To restrict the growth of algae in the reservoir we recommend keeping the reservoir cover in place and using opaque circulation lines This will eliminate the entrance of light required for the growth of most common algae We recommend the use of Chloramine T 1 gram per 3 5 liters Other algaecides can be harmful to the unit s internal components Contact Thermo Fisher for additional information Leaks A very small leak between the pump and motor is normal If this is a new pump allow it to run for 24 hours and reinspect A continuous leak will require pump replacement Phase Rotation Three phase units have a rotation interlock which prevents the unit from Interlock starting if the phase rotation is wrong If the unit will not start see Section VII Troubleshooting If the options in the checklist are not applicable the problem may be phase rotation The interlock is located in the power box Remove the unit s top and left side panel to access it The interlock has a green light which illuminates when the phase is correct If the phase is incorrect disconnect the unit from its power source
64. ntenance plan would include switching out the fluid with newly distilled water every six months The particulates that have been filtered out in the process are also preventative in keeping the system clean of contaminants 50 50 Uninhibited Ethylene Glycol Water 15 C to 35 C Ethylene glycol is used to depress the freezing point of water as a coolant We recommend not using the uninhibited no corrosion additives ethylene glycol It is more corrosive to copper than plain water so it is not recommended unless required for the application 50 50 Inhibited Ethylene Glycol Water 15 C to 35 C Inhibited glycol can be used to increase the operating temperature range of the fluid but should not be used as a pre mixed anticorrosive solution Industry standards use a pH standard of 8 to determine when the fluid has become corrosive Dowtherm is an ethylene based product that contains dipotassium phosphates in a 4 concentration The recommended use of Dowtherm is mixing with distilled or deionized water or water that contains less than 25 ppm chloride and sulfate and less than 100 ppm total hardness of CACO3 The general term inhibited glycol water is too close to meaning inhibited water Inhibited water can have many types of additives including chromate that will quickly foul the cooling system Some inhibitor additives can release the bonding agent in the carbon graphite in the PD2 pumps so they are incompatible such as S
65. ntrol Verify the setpoint If the temperature continues to rise make sure your application s heat load does not exceed the rated specification see Chapter 2 Specifications Make sure the air intake and discharge are not impeded and the ambient temperature does not exceed 35 C Make sure the condenser is free of dust and debris see Chapter 4 Maintenance and Cleaning Verify the controller s PID values see Setup Tuning Loop Thermo Scientific Service Assistance Thermo Scientific Chapter 5 4 Unit runs loudly a Check the position of the reservoir tank valves See Reservoir Tank Isolation Valves Open Tank Circulation Chapter 2 5 Condensation on reservoir a Check the position of the upper reservoir tank valve See Reservoir Tank Isolation Valves Open Tank Circulation Chapter 2 6 Unit vibrates a The external pressure relief valve may need adjustment Change the pressure setting 5psi see Chapter 4 7 No serial communications optional a All units are tested for serial communications before they leave the factory Check the controller ensure serial communication is enabled b Check all communications commands they must be exact See Appendix B c Check all wiring for proper connections or possible shorts d Software to verify serial communication is available from Thermo Fisher If after following these troubleshooting steps your unit fails to operate properly contact our Servic
66. ntroller displaying the temperature press five times The display will alternate with r Pr b and either om or of F If desired use the arrow keys to change the status and then press to return to the temperature display If the external sensor is selected the controller will display the temperature at the external sensor Also the controller indicates the external sensor is selected by flashing the left most temperature decimal point Flashes to indicate the external sensor is enabled NOTE To display the internal temperature press and hold A for one second The display will indicate E di for 1 2 second and then display the internal temperature for five seconds The display then indicates rk de for L second and returns to the external temperature The A key will need to be released and then pressed and held again to repeat the cycle To display the remote probe temperature deviation use the Setup Tuning Loop see page 18 A The controller continues to use the existing setpoint When using the external sensor the controller will not allow internal unit temperatures outside 3 C to 37 C for standard temperature range units 17 C to 37 C for low temperature range units The selected sensor is retained by the controller if it is turned off or if power is removed If there is an external sensor error the unit will automatically return to the intetnal sensor An errot code will flash and if the fault mode is on the unit wil
67. odium Hydroxide Thermo Scientific NESLAB Merlin Series 43 Appendix A 50 50 Uninhibited Propylene Water 15 C to 35 C Although the use of propylene glycol is similar to ethylene glycol propylene glycol is considered safe to use in the food industry Propylene is less dense than ethylene and will have a tendency to weep through mechanical seals 50 50 Inhibited Propylene Water 15 C to 35 C Same issues as with uninhibited propylene and inhibited ethylene glycol Deionized water 1 3 Ma cm compensated 5 C to 35 C Deionized water has had the conductive ions that cause galvanic corrosion between dissimilar metals removed 44 NESLAB Merlin Series Thermo Scientific Wetted Materials Thermo Scientific Appendix A PD PUMPS PD1 and PD2 Carbon Graphite Graphitar Type B Brass 303 Stainless Steel Ceramic 85 Aluminum Oxide and Balance is Considered Glass Fluorocarbon Viton equivalent Ultem relief Valve Material CP 55 PUMP Stainless Steel Viton Evaporator AISI 316 Stainless Steel Copper Brazing Tank Body Polyethylene LLPDE Mobile NRP 135 Hose Assemblies Plumbing Buna N Parker Push Lok O ring Nitrile based synthetic rubber Parker Push Lok hoses Brass Copper Ball Valve Viton Chrome plated brass body and ball PTFE Sealants 95 5 solder Bcup 5 brazing Anaerobic Mythacrylate Ester Low Level Low Flow Switches Optional Polysulphone Low Level Brass Low F
68. of Aan de achterzijde van het apparaat bevind zich de schakelaar voor de zekering Deze schakelaar moet naar boven staan Om het apparaat te starten druk op start stop Om het apparaat uit te schakelen druk nogmaals op start stop De 3 amp LED geeft de status van het koelsysteem aan De LED gaat aan als het apparaat warmte ontrekt aan de koelvloeistof Op het moment dat de ingestelde temperatuur wordt bereikt zal de LED gaan knipperen NESLAB Merlin Series xix Preface XX NESLAB Merlin Series Temperatuur Instelling Druk op de controller om de ingestelde temperatuur te zien De indicator licht op en de ingestelde waarde knippert Druk op de knop met het pijltje totdat de gewenste temperatuur is ingesteld Druk nogmaals op de knop met het pijltje om de wijziging te bevestigen De display knippert enkele malen snel en zal dan weer de actuele temperatuur laten zien Periodiek onderhoud Controleer regelmatig de vloeistof Als de vloeistof ververst moet worden handel dan als volgt Laat de vloeistof uit het apparaat lopen Aan de achterzijde van het apparaat bevindt zich een afvoerkraantje Spoel het reservoir door met een spoelvloeistof die geschikt is voor het apparaat en de koelvloeistof Het is noodzakelijk om de ribben van de condensor regelmatig schoon te maken met behulp van een stofzuiger Check de condensor maandelijks Na enige maanden kunt u de frequentie van het schoonmaken bepalen Apparaten met ee
69. or is enabled See page 23 Reservoir See page 12 viii Indicates the controller is displaying the setpoint Press the arrow keys to change the value See pages 13 14 Indicates the controller is displaying the unit s low temperature alarm setting Press the arrow keys to change the value See pages 13 14 Press to sequence through the four indicators and accept the displayed value See page 13 NOTE None of the four indica tors are visible unless this key is pressed Reservoir Access Panel See pages 10 12 Condenser Access Panel See page 27 3 Plumbing Return Connec tion See page 10 gt Plumbing Supply Connection See page 10 PSI KPa Press to change the displayed value See page 13 Optional Indicates the unit is operating in the serial communication or remote start stop mode See pages 13 14 and 16 Indicates the controller is displaying the high temperature alarm setting Press the arrow keys to change the value See pages 13 14 Controller See page 13 Pressure Gauge See page 15 PD Pump Pressure Relief Valve See page 29 NESLAB Merlin Series Circuit Protector See page 15 Press to start stop the unit See page 13 Press to mute the alarm See page 13 Optional B Communications Connector See page 21 24 Optional Remote Start Stop Connector See page 22 External Temperature Sensor See page 23 Drain See page 10
70. ouble check all electrical and plumbing connections Make sure the circulating system is properly filled with cooling fluid Place the circuit breaker located on the rear of the unit to the up position To start the unit press To turn the unit off press Qin The X LED indicates the status of the refrigeration system It illuminates to indicate the refrigeration system is removing heat from the cooling fluid As the operating temperature approaches the setpoint the LED will flash NESLAB Merlin Series ix Preface Temperature Adjustment To display the temperature setpoint press on the controller The indicator will illuminate and the display will flash the current setpoint value To adjust the temperature setpoint press the arrow keys until the desired temperature setpoint is indicated Press again to confirm the change The display will rapidly flash the new value for a short time and then return to the recirculating fluid temperature Periodic Maintenance Periodically inspect the reservoir fluid If cleaning is necessary flush the reservoir with a cleaning fluid compatible with the circulating system and the cooling fluid The cooling fluid should be replaced periodically Frequency depends on the operating environment and amount of usage Before changing the cooling fluid ensure it is at a safe temperature Periodic vacuuming of the condenser fins 1s necessary The frequency of cleaning depends on the operating envi
71. our reference thermometer the internal temperature sensor rtd1 may need calibration Do not pick calibration points that are outside the safe operating limits of the fluid in your application For example with water 35 C and 5 C would be typical calibration points Run the unit to a high end calibration point Place a calibrated reference thermometer in the reservoir ensure the fluid temperature is stable Enter Calibration by pressing and qus V and then pressing A three times The display will read CAL Press and the display will read rtd1 To calibrate the high end temperature press A and the display will read r1H Press A again and the display will flash between r1H and the current probe temperature Use A and W to adjust the r1H display Once the display temperature matches the reference thermometer press 9 twice Press until Stor 1s displayed press A to accept the new value Thermo Scientific Chapter 4 HOLD SV si ve A rtd1 internal sensor rtd2 external sensor optional see next page Accept All Changes Repeat for the low end temperature r1L NOTE Both the high and low temperatures must be entered for a valid calibration If power is lost before the procedure is complete critical data needed for the calculation of calibration parameters will be lost After pressing A at the Stor prompt wait several seconds before proceeding to ensure that a bad calibration message does not appear
72. p skifte beror p bruken av systemet For kj lev sken skiftes m kj lev ske temperaturen v re p ett sikkert niv Periodisk rengj ring av kondensatoren er strengt n dvendig Anbefalt frekvens kontroller kondensatoren en gang pr mnd etter installasjon Deretter rengj res kondensatoren jevnlig med samme intervall Kjolere med PD pumper er utstyrt med sil Dersom det er partikler i systemet beskytter silen mot deleggelser Etter noe tid b r man kontrollere rengjore dette filteret deretter kontroller rengj r filteret jevnlig Tett filter vil for rsake lavere trykk i sirkulasjons systemet Thermo Scientific Chapter Description The Thermo Scientific NESLAB Merlin Recirculating Chiller is designed to provide a continuous supply of cooling fluid at a constant temperature and volume The unit consists of an air cooled refrigeration system plate heat exchanger recirculating pump polyethylene reservoir and a microprocessor controller Throughout the manual you will be asked to consult the unit s name plate label for specific information The label is located on the rear of the unit See below for an example Thermo Fisher Scientific Newington NH 03801 U S A 800 258 0830 603 436 9444 NN S N XXXXXXXXX XXX VOLT XX HZ XPH XXAMP R134A X XOZ HIGH XXX PSI LOW XXXPSIG Thermo Scientific NESLAB Merlin Series 1 Chapter1 Specifications M 25 M
73. panelu jednotky P pojky jsou ozna eny a Rozm r fittingu je V FPT FPT pro jednotky s erpadlem CP 55 Vyjmete plastov ochranne vlozky z obou n trubku Pripojte p vod a odvod va aplikace t j extern ho za zen kter temperujete na po adovanou teplotu Pln n rezervo ru se prov d po otev en pf stupov ho panelu a vy toubov n z tky rezervo ru Rezervo r se pot napln vhodnou cirkula n kapalinou Doporu en parametry cirkula n kapaliny jsou specifikov ny na stran 11 Provoz P ed zah jen m provozu je t eba opakovan prov it elektrick p ipojen a cirkula n obvody jednotky Cirkula n obvod mus b t zapln n vhodnou cirkula n kapalinou S tov spina na zadn st n jednotky pot um st me do horn polohy K zah jen provozu stiskn te Qi K vypnut jednotky op t stisknete LED kontrolka indikuje stav chladic ho syst mu Pokud sv t signalizuje ze chladic syst m moment lne bez a odv d teplo cirkulacni kapalin Pokud se teplota cirkula n kapaliny p ibl z po adovan opera n teplot kontrolka zacne blikat NESLAB Merlin Series xxi Preface xxii NESLAB Merlin Series Nastaveni teploty Po zapnuti jednotky se zobrazi pozadovan teplota cirkulacn kapaliny Po stisknut kontroln ho tla tka displej za ne blikat ipkami nahoru nebo dol nastav te pokud je t eba novou po adovanou teplotu Z
74. ronment We recommend a monthly visual inspection of the condenser after initial installation After several months the cleaning frequency will be established Units with PD pumps have a strainer If debris is in the system the strainer will prevent the material from being drawn into the pump and damaging the pump vanes A clogged strainer will also cause increased pump discharge pressure After initial installation the strainer may become clogged Clean the strainer after the first week of installation After this first cleaning we recommend a monthly visual inspection After several months the cleaning frequency will be established Before cleaning the strainer disconnect the power cord from the power source and drain the unit X NESLAB Merlin Series Thermo Scientific Preface Kom hurtigt i gang Installering Merlin serien er luftk let Luftindtaget sker via ribber i k lebadets front luftudtaget via huller bagp og i siderne af k lebadet K lebadet skal anbringes s ledes at luftindtag og luftudtag ikke hindres Utilstr kkelig ventilation vil for rsage nedsat k lekapacitet og i v rste fald del gge kompressoren Undg at anbringe k lebadet i meget st vede omgivelser Det anbefales at indf re en periodisk og systematisk reng ringsprocedure En kondenser sikrer k lebadets store luftindtag Ophobning af f eks st v eller snavs p k leribberne medf rer en nedsat k lekapacitet Omgivelsestemperaturen m max
75. s and workmanship for 24 months from date of shipment See back page for mote details Thermo Scientific Thermo Scientific Unpacking Preface Retain all cartons and packing material until the unit is operated and found to be in good condition If the unit shows external or internal damage contact the transportation company and file a damage claim Under ICC regulations this is your responsibility Out of Box Failure An Out of Box Failure is defined as any product that fails to operate in conformance with sellers published specifications at initial power up The unit must be installed in accordance with manufacturer s recommended operating conditions within 30 days of shipment from the seller Any Temperature Control product meeting the definition of an Out of Box Failure must be packed and shipped back in the original packaging to Thermo Fisher Scientific for replacement with a new unit Seller to pay the cost of shipping Customer must receive a Return Material Authorization RMA from Thermo Fisher prior to shipping the unit NESLAB Merlin Series v Preface Safety Wa rnings Warnings are posted throughout the manual These warnings are designated by an exclamation mark inside an equilateral triangle and text highlighted in bold Read and follow these important instructions Failure to observe these instructions can result in permanent damage to the unit significant property damage or personal injury or death The lightning f
76. uttak p applikasjonen For fylle systemet pne deksel for reservoar og skrukork p reservoaret Fyll opp med ren kjolevzske vann For anbefalt kj lev ske se side 11 Thermo Scientific NESLAB Merlin Series xxiii Preface xxiv NESLAB Merlin Series Operasjon For start av kjoleren dobbelsjekk at alle elektriske og rortilkoblinger er korrekt tilkoblet Kontroll r at vannsystemet er fylt opp med anbefalt kj lev ske Sett p strommen ved sl p bryter p baksiden av kjoleren For starte kjoleren trykk For sl av kjoleren trykk igjen LED lyset indikerer status p kjoleren Den lyser n r kjoleren fjerner varme fra vannet N r temperaturen n rmer seg settpunktet begynner LED lyset blinke Temperatur settpunkt justering For programmere kontrolleren trykk p kontrolleren Indikatorlampen vil n lyse og nummerdisplayet blinke den satte sett temperatur For forandre verdien trykk piltast opp eller ned til onsket verdi blinker i displayet Trykk igjen for bekrefte den nye verdien Displayet vil n blinke den nye verdien en liten stund og deretter g tilbake til den avleste temperaturen Periodisk vedlikehold Kontroll r v skeniv et i reservoaret periodisk Rengjor reservoaret ved behov Spyl reservoaret med rengjoringsmiddel som er kompatibelt med systemet og v ske som skal brukes som kjoleveske Kj lev sken i systemet bor skiftes med periodiske mellomrom Frekvensen
77. y will rapidly flash the new value for a short period and then return to the recirculating fluid temperature NOTE If the value is not confirmed within 60 seconds the display will return to the recirculating fluid temperature and ignore any changes A d display change the temperature alarm setting press until either L or illuminates The display will flash the current limit value Use the arrow keys to change the value The low end range is 0 C 15 C for low temp units to 30 C The high end range is 10 C to 40 C NOTE If the arrow keys are not pressed within 10 seconds the display will return to the current reservoir temperature You cannot set either alarm closer than 2 C of the setpoint A Once the desired setting is displayed press again to confirm the change The display will rapidly flash the new value for a short period and then return to the recirculating fluid temperature NOTE If the value is not confirmed within 60 seconds the display will return to the recirculating fluid temperature and ignore any changes A Optional Once your remote serial comm cable is connected to the unit enable or disable remote operation or serial communication by pressing until Q illuminates The display will flash the communication status Use the up atrow key to enable the down arrow to disable See pages 21 and 22 for additional information MEM NOTE If the arrow keys are not pressed within 10 seconds the display will return to t

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