PolyScience Liquid-to-Air Operating Manual
Operator’s Manual
Liquid-to-Air Recirculator
110-368 06.23.11
Table of Contents
Introduction.............................................................................................................................................................. 2
General Information................................................................................................................................................. 2
General Safety Information .................................................................................................................................... 2
Safety Recommendations...................................................................................................................................... 3
Regulatory Compliance and Testing...................................................................................................................... 3
Unpacking Your Recirculator ................................................................................................................................. 3
Contents................................................................................................................................................................. 3
Controls and Components ..................................................................................................................................... 4
Installation and Startup........................................................................................................................................... 5
Site Requirements ................................................................................................................................................. 5
Ambient Temperature and Relative Humidity .................................................................................................... 5
Location.............................................................................................................................................................. 5
Clearance ........................................................................................................................................................... 5
Electrical Power ..................................................................................................................................................... 5
Plumbing ................................................................................................................................................................ 6
Process Piping ................................................................................................................................................... 6
Reservoir Drain .................................................................................................................................................. 6
Startup.................................................................................................................................................................... 6
Process Coolant ................................................................................................................................................. 6
Electrical Power.................................................................................................................................................. 7
Starting Process Fluid Flow................................................................................................................................ 7
Safety By-Pass Pressure Regulator Adjustment ................................................................................................... 7
Positive Displacement Pump.............................................................................................................................. 7
Turbine Pump..................................................................................................................................................... 8
Normal Operation .................................................................................................................................................... 9
Routine Maintenance & Troubleshooting ............................................................................................................. 9
Draining Reservoir (Preparing for Transportation or Storage)............................................................................... 9
Periodic Inspection................................................................................................................................................. 9
Cleaning Exterior Surfaces .................................................................................................................................... 9
Condenser, Air Vents and Reusable Filter .......................................................................................................... 10
Fluid Filter ............................................................................................................................................................ 10
Fluid Level............................................................................................................................................................ 10
Troubleshooting ................................................................................................................................................... 10
Technical Information ........................................................................................................................................... 11
Performance Specifications ................................................................................................................................. 11
Replacement Parts ................................................................................................................................................ 12
Wiring Diagram...................................................................................................................................................... 12
Equipment Disposal (WEEE Directive)................................................................................................................ 13
Service and Technical Support............................................................................................................................ 13
Warranty................................................................................................................................................................. 14
110-368 1
Introduction
This Liquid-to-Air Recirculator continuously pumps near-ambient temperature water from a reservoir to an
external heat source, through a cooling radiator, and then returns cooled water to the reservoir. By blowing
ambient air over the radiator, water flowing inside is cooled and the heat is exhausted into the atmosphere.
General Information
General Safety Information
When installed, operated, and maintained according to the directions in this manual and common safety
procedures, your Recirculator should provide safe and reliable heat removal. Please ensure that all individuals
involved in the installation, operation, or maintenance of this unit read this manual thoroughly prior to working with
the unit.
This symbol alerts you to a wide range of potential dangers.
This symbol advises you of danger from electricity or electric shock.
/
This symbol marks information that is particularly important.
This symbol indicates alternating current.
These symbols on the Power Switch / Circuit Breaker indicate that they place the main power supply ON / OFF.
This symbol on the Power Switch indicates that it places the unit in a standby mode. It DOES NOT fully
disconnect the unit from the power supply.
This symbol indicates a protective conductor terminal.
Read all instructions pertaining to safety, set-up, and operation.
Proper operation and maintenance is the user’s responsibility.
110-368 2
Safety Recommendations
To prevent injury to personnel and/or damage to property, always follow your workplace’s safety procedures when
operating this equipment. You should also comply with the following safety recommendations:
WARNING:
• Always connect the power cord on this unit to a grounded (3-prong) power outlet. Make
certain that the outlet is the same voltage and frequency as your unit.
• Never operate the unit with a damaged power cord.
• Always turn the unit OFF and disconnect Mains power before performing any maintenance
or service.
Regulatory Compliance and Testing
CSA (all units)
CAN/CSA C22.2 No. 61010-1-04 — Safety Requirements for Electrical Equipment for Measurement, Control
and Laboratory Use, Part I: General Requirements
CAN/CSA C22.2 No. 61010-010-04 — Safety Requirements for Electrical Equipment for Measurement, Control
and Laboratory Use, Part 2-010 — Particular Requirements for Laboratory Equipment for the Heating of
Materials
UL Std. No. 61010-1 — Electrical Equipment for Laboratory Use, Part I: General Requirements
UL Std. No. 61010A-2-010 — Electrical Equipment for Laboratory Use, Part 2: Particular Requirements for
Laboratory Equipment for the Heating of Materials
CE (50 Hz units)
EC Low Voltage Directive 2006/95/EC
EC Electromagnetic Compatibility Directive 2004/108/EC
IEC 61010-1: 2001
IEC 61010-2-010: 2005 (2
nd
edition)
IEC 61326:2005 / EN 61326 : 2006
Unpacking Your Recirculator
Your Recirculator is shipped in a special carton. Retain the carton and all packing materials until the unit is
completely assembled and working properly. Set up and run the unit immediately to confirm proper operation.
Beyond one week, your unit may be warranty repaired, but not replaced. If the unit is damaged or does not
operate properly, contact the transportation company, file a damage claim and immediately contact the company
where your unit was purchased.
WARNING: Keep unit upright when moving. Be sure to follow your company’s procedures and practices
regarding the safe lifting and relocation of heavy objects.
Contents
The following items have been included with your Recirculator:
Operator’s Manual
IEC Power Cord
Two sets of nylon Inlet/Outlet adapters:
½ inch male NPT to ½ inch barb 90° elbow
½ inch male NPT to 5/8 inch barb 90° elbow
110-368 3
Controls and Components
Reservoir Cap
Pressure Gauge
Air Filter Access
Low Liquid Level
Warning Indicator
Power Switch
Top Panel Access Screws
Reservoir Liquid
Level Indicator
Fluid Inlet
Fluid Outlet
Circuit Breaker /
Power Switch
Drain
IEC Power Inlet
110-368 4
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