Emerson 3000 installation manual Glycol Solutions, Ethylene glycol concentrations

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Glycol/GLYCOOL-Cooled Models—Self-Contained Compressor

5.5.2Glycol Solutions

NOTE

Glycol solutions should be considered for protection of the coil. When it is not used, damage can occur from either freezing or corrosion from water.

When considering the use of any glycol products in a particular application, you should review the latest Material Safety Data Sheets and ensure that the use you intend can be accomplished safely. For Material Safety Data Sheets and other product safety information, contact the supplier nearest you. Before handling any other products mentioned in the text, you should obtain available product safety information and take necessary steps to ensure safety of use.

NOTICE

Risk of improper handling of glycol. Can cause environmental damage and violate national, regional and local laws.

When mishandled, glycol products pose a threat to the environment. Before using any glycol products, review the latest Material Safety Data Sheets and ensure that you can use the product safely.

Glycol manufacturers request that the customer read, understand and comply with the information on the product packaging and in the current Material Safety Data Sheets. Make this information available to anyone responsible for operation, maintenance and repair of the drycooler and related equipment.

No chemical should be used as or in a food, drug, medical device, or cosmetic, or in a product or process in which it may contact a food, drug, medical device, or cosmetic until the user has determined the suitability and legality of the use. Since government regulations and use conditions are subject to change, it is the user's responsibility to determine that this information is appropriate and suitable under current, applicable laws and regulations.

NOTICE

Risk of using improper cooling agent. Can cause reduced cooling performance and damage to equipment and piping.

Proper formulations of inhibited formula ethylene glycol and propylene glycol must be used in the Liebert Challenger 3000 system. Automotive antifreeze is unacceptable and must NOT be used.

Typical inhibited formula ethylene glycol and propylene glycol manufacturers and suppliers are Union Carbide (Ucartherm) or Dow Chemical (Dowtherm SR-1, Dowfrost). These glycols are supplied with corrosion inhibitors and do not contain a silicone anti-leak formula. Commercial ethylene glycol, when pure, is generally less corrosive to the common metals of construction than water itself. Aqueous solutions of these glycols, however, assume the corrosivity of the water from which they are prepared and may become increasingly corrosive with use if not properly inhibited.

There are two basic types of additives: corrosion inhibitors and environmental stabilizers. The corrosion inhibitors function by forming a surface barrier that protects the metals from attack. Environmental stabilizers, while not corrosion inhibitors in the strictest sense of the word, decrease corrosion by stabilizing or favorably altering the overall environment. An alkaline buffer such as borax is a simple example of an environmental stabilizer since its prime purpose is to maintain an alkaline condition (pH above 7).

The percentage of glycol to water must be determined by using the lowest design outdoor temperature in which the system is operating. Table 16 indicates the solution freeze point at several concentration levels of ethylene glycol. Propylene glycol concentrations should be 1% higher than the ethylene glycol table values to find the freeze point. For example, 41% propylene glycol freezes at -10°F (-23°C).

Table 16 Ethylene glycol concentrations

%Glycol by Volume Freezing Point °F (°C)

Apparent Specific Gravity @ 50°F (10°C)

0 *

10

20

30

40

50

32 (0)

25 (-3.9)

16 (-8.9)

5 (-15.0)

-10 (-23.3)

-32 (-35.5)

1

1.014

1.028

1.042

1.057

1.071

 

 

 

 

 

 

* A minimal amount of glycol should be considered for inhibitive coil protection.

Liebert® Challenger 3000

46

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Contents Liebert Challenger 3000 with Liebert iCOM Page Table of Contents Chilled Water Models Split System ModelsFigures R407C RefrigerantTables Important Safety Instructions Liebert Challenger Important Safety Instructions System Descriptions Split Systems Prop Fan Air-CooledCentrifugal Fan Air-Cooled Water-CooledRoom Preparation Equipment InspectionLocation Considerations Equipment HandlingUnit net weight Handling With SkidRemoval of Skid Model Lb. kgUpflow BU cabinet dimensions Floor Cutout Dimensions Drain Line Piping ConsiderationsPiping connection size Piping connections for air-cooled units Downflow models Chilled Water Unit Connection Sizes-inPiping connections for air-cooled units Upflow models Installation Applicable to all Models Condensate Pump Line 1/2 OD CU used only Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Electrical Connections Facility Fluid and Piping MaintenanceHumidifier Supply Water-Optional Infrared Terminal Block For Customer Connectons Upflow Models with Liebert iCOM Downflow Models with Liebert iCOMPlenum Installation Balancing the Air DistributionUnder-Floor Discharge Systems Ducted ApplicationsChecklist for Completed Installation Line Voltage Condenser LocationLow Voltage Common to all models. See below for key to a dimension Air-cooled condenser statisticsLiebert Lee-Tempheater 43-9/16 51-7/16Refrigerant Piping Equivalent lengths feet for various pipe fittings Recommended line sizes OD copper, inchesCondenser refrigerant per serial tag Variable Fan Speed Control Piping Fan Speed Control SystemsVariable Fan Speed Control Materials Supplied Fan speed suction pressure transducer settings Variable Fan Speed ChargingDPN000349 Rev DPN001726 Liebert Lee-Temp Piping Liebert Lee-Temp Leak Check and Evacuation ProcedureLiebert Lee-Temp Controlled Materials Supplied Liebert Lee-TempCharging Liebert Lee-Temp suction pressure transducer settings407C Factory Piping Optional Piping Field Piping DPN001725 Condenser Factory Piping Field Piping Factory Piping Adjustment Water Regulating ValveRefrigerant control settings psi kPa Motorized Ball Valve-Digital Scroll CompressorsManual Flushing ControlControl Method StartupLocation Manual ControlDrycooler Location Drycooler InstallationPump and Drycooler Glycol Piping General GuidelinesRoom dew point temperatures Dry Bulb Wet Bulb Relative Dew Point HumidityVolume in standard Type L copper piping Filling InstructionsExpansion Tanks, Fluid Relief Valves and Other Devices Preparing the System for FillingGlycol Solutions Ethylene glycol concentrationsFilling the System For expansion tank dimensions, see on 43-3/16 43-9/16 110 5mmSee Note 30-1/4 483mm 1097mmMounting hole dimensional data Drycooler dataGlycol pump data Pump Pump Suction Pump Discharge Connection,Field Piping General arrangement-Glycol-cooled models with digital scroll Expansion Tank Field-Installed at Pressure Glycol Regulating Valve Testing Valve FunctionMotor Ball Valve-Digital Scroll Compressors Chilled Water Models WAY Valve Air-Cooled Condensing Units Water/Glycol-Cooled Condensing UnitsRefrigerant Loop R407C Charge Unit refrigerant chargeModel Lb kg Recommended refrigerant lines R407C sizes OD copper Line charges refrigerant per 100 ft m of Type L copper tubeLine coupling sizes Quick Connect Fittings Unit Dimensions See Table Outdoor Air-Cooled Condensing UnitsPFCZ42A-L PFCZ41A-L Outdoor air-cooled condensing unit-top air discharge models See Table36-1/4 38-1/2 Piping and electrical connections top air discharge152 Field-supplied unit disconnect switch Ton High Ambient Ton Quiet-LineInstalling the Indoor Condensing Unit Model Net Weight 60 Hz 50 Hz Lb kg MC40A MC39ACentrifugal Air-Cooled Condensing Units Indoor centrifugal condensing unitDucting Airflow CFM CMHPiping Connections Wire connections from evaporator DPN000207Rev0 ModTon centrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Water and Glycol-Cooled Condensing Units Piping ConsiderationsTon Connection Sizes Condenser Water RequirementsGlycol Systems Ton water/glycol-cooled condensing unitDPN000209 Ton water/glycol-cooled condensing unit dimensional data WATER/GLYCOL Temperature Gauge Pressure Psig KPa R407C RefrigerantCalculating Subcooling Temperature Pressure Gauge Psig KPaExample Page Ne t Ppor t Is tTwor k Care
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3000 specifications

The Emerson 3000 is a cutting-edge control system designed to enhance the efficiency, reliability, and precision of industrial operations. Employed across various sectors such as oil and gas, pharmaceutical, food and beverage, and power generation, the Emerson 3000 has gained recognition for its robustness and versatility.

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