Thermo Scientific Neslab Merlin M 75 User manual

Thermo Scientic
Merlin M75
Recirculating Chiller
Thermo Scientic Manual P/N U01116
Rev. 09/21/2017
Multilingual
Quick Starts
Multilingual
Essential Safety
Instructions
Installation
Operation
Maintenance
Troubleshooting
Visit our Web site at:
http://www.thermofischer.com/tc
Product Service Information, Applications
Notes, SDS Forms, e-mail.
Voice Info: [phone]

Thermo Scientic
Merlin M75
Recirculating Chiller
Thermo Scientic Manual P/N U01116
Rev. 09/21/2017
Multilingual
Quick Starts
Multilingual
Essential Safety
Instructions
Installation
Operation
Maintenance
Troubleshooting
Visit our Web site at:
http://www.thermofischer.com/tc
Product Service Information, Applications
Notes, SDS Forms, e-mail.
Voice Info: [phone]

Thermo Fisher Scientic
25 Nimble Hill Road
Newington, NH 03801
Tel : [phone] or
[phone]
Fax : [phone]
www.thermoscientic.com/tc
Sales, Service, and Customer Support
25 Nimble Hill Road
Newington, NH 03801
Tel: [phone]
Sales: 8:00 am to 5:00 pm
Service and Support: 8:00 am to 6:00 pm
Monday through Friday (Eastern Time)
Fax: [phone]
service.tc.us@thermosher.com
Dieselstrasse 4
D-76227 Karlsruhe, Germany
Tel : [phone]
Fax : [phone]
info.tc.de@thermosher.com
Building 6, No. 27
Xin Jinqiao Rd., Shanghai 201206
Tel : [phone]
Fax : [phone]
info.china@thermosher.com
Statement of Copyright
Copyright © 2017 Thermo Fisher Scientic. All rights reserved.
This manual is copyrighted by Thermo Fisher Scientic.
Users are forbidden to reproduce, republish, redistribute, or resell any materials from this manual in either machine-
readable form or any other form.

Merlin i
Thermo Scientific
Contents
Preface .............................................................................................................................. iii
Compliance............................................................................................................iii
WEEE ....................................................................................................................iii
After-sale support .................................................................................................iv
Unpacking..............................................................................................................iv
Warranty .................................................................................................................iv
Safety Warnings......................................................................................................v
Quick Reference Operating Procedures......................................................... viii
Chapter 1 Description....................................................................................................... 1-1
  Specications..................................................................................................... 1-1
Wetted Parts........................................................................................................1-2
Chapter 2 Installation and Operation............................................................................. 2-1
Site .......................................................................................................................2-1
Electrical Requirements ....................................................................................2-2
Plumbing Requirements....................................................................................2-2
Filling Requirements .........................................................................................2-4
Reservoir Tank Isolation Valves......................................................................2-4
Controller............................................................................................................2-5
Start Up/Shut Down.........................................................................................2-7
Setup/Tuning Loop.........................................................................................2-10
Chapter 3 Options .............................................................................................................. 3-1
Communication Connector .............................................................................3-1
Remote Start/Stop.............................................................................................3-2
Reservoir Level Warning/Fault .......................................................................3-4
Low Pump Flow Warning/Fault .....................................................................3-4
Chapter 4 Maintenance.................................................................................................... 4-1
Error Codes........................................................................................................4-1
Displaying Software Version Number............................................................4-2
Controller PID Values.......................................................................................4-3
Cleaning ..............................................................................................................4-3
Power Cable Mating Ends................................................................................4-4
Leaks....................................................................................................................4-4
PD Pressure Relief Valve .................................................................................4-4
Pump Strainer.....................................................................................................4-5
Temperature Sensor Calibration......................................................................4-6
Decommissioning/Disposal ............................................................................4-8
Shipment/Storage..............................................................................................4-8

ii Merlin
Contents
Thermo Scientific
Chapter 5 Troubleshooting.............................................................................................. 5-1
Checklist.............................................................................................................5-1
Service Assistance.............................................................................................5-3
Appendix NC Serial Communications Protocol .........................................................A-1
Declaration of Conformity
WARRANTY

Merlin LR Series iii
Thermo Scientific
Preface
The Declaration of Conformity is located in the back of this manual.
Compliance
WEEE This product is required to comply with the European Union’s Waste
Electrical & Electronic Equipment (WEEE) Directive 2012/19/EU. It is
marked with 'wheelie bin' symbol:
Thermo Fisher Scientic has contracted with one or more recycling/
disposal companies in each EU Member State, dispose of or recycle this
product through them. Further information on Thermo Fisher Scientic’s
compliance with these Directives is available at:
www.thermoscientic.com/WEEERoHS

iv Merlin
Preface
ThermoScientific
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 chiller 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:
BOM number
serial number
software version
voltage of power source
The chiller’s BOM and serial number are located on the name plate label on
the rear of the chiller.
After-sale Support
BOM#: XXXXXXXXXXXX
S/N: XXXXXXXXX
XXX VOLT XX HZ X PH X.X AMP
R134A X.XOZ HIGH XXX PSI LOW XXXPSIG
Retain all cartons and packing material until the chiller is operated and
found to be in good condition. If the chiller shows external or internal
damage contact the transportation company and file a damage claim.
Under ICC regulations, this is your responsibility.
Thermo Scientific Merlin chillers have a warranty against defective parts
and workmanship for 12 months from date of shipment.
Warranty
Unpacking

Preface
Merlin Series v
Thermo Scientific
Make sure you read and understand all instructions and safety precautions
listed in this manual before installing or operating your chiller. If you have
any questions concerning the operation of your chiller or the information
in this manual, please contact us. See inside cover for contact information.
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It is also be used to alert
against unsafe practices.
The lightning ash with arrow symbol, within an equilateral triangle, is
intended to alert the user to the presence of non-insulated "dangerous
voltage" within the chiller's enclosure. The voltage magnitude is signicant
enough to constitute a risk of electrical shock.
This label indicates read the manual.
Note The chiller's equipment design incorporates a complete sheet metal
enclosure for personnel protection from mechanical and electrical hazards. 
Observe all warning labels. 
Never remove warning labels. 
Never place the chiller in a location where excessive heat, moisture,
or corrosive materials are present. 
The chiller construction provides protection against the risk
of electrical shock by grounding appropriate metal parts. The
protection will 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. 
Never connect the process uid inlet or outlet ttings to your
building water supply or any water pressure source. 
Never use ammable or corrosive uids with this chiller. Highly
distilled and deionized water may be aggressive and cause material
corrosion. 
Safety Warnings

vi Merlin Series
Preface
Thermo Scientific
Please contact Thermo Fisher before subjecting this chiller to
prolonged exposure to highly distilled or deionized water. 
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. 
In addition to the specic warnings listed on the previous page the
following general warnings also apply to your chiller:
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. 
Transport the chiller with care. Sudden jolts or drops can damage
the chiller's components. 
Drain the chiller before it is transported and/or stored. 
The circuit protector located on the rear of the chiller is not
intended to be used as a disconnecting means. 
Observe all warning labels. 
Never remove warning labels. 
Never operate damaged or leaking equipment. 
Never operate the chiller without cooling uid in the reservoir. 
Always turn off the chiller and disconnect the power cord from
the power source before performing any service or maintenance
procedures, or before moving the chiller. 
Never operate equipment with damaged power cords. 
Refer service and repairs to a qualied technician. 