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Temptek CF Series Instruction Manual

Portable chiller
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I.O.M. #076 updated 12/01/2022
INSTRUCTION MANUAL
• INSTALLATION • OPERATION • MAINTENANCE
Covering models
From 1/4 to 1.5 tons
With 'CF' Instruments
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, IN 46142
317-887-0729 fax: 317-881-1277
Model:
Service Department fax: 317-885-8683
www.Temptek.com
Serial Number :
E-mail: sales@Temptek.com

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  • Page 1 I.O.M. #076 updated 12/01/2022 INSTRUCTION MANUAL • INSTALLATION • OPERATION • MAINTENANCE Covering models From 1/4 to 1.5 tons With ‘CF’ Instruments TEMPTEK, INC. 525 East Stop 18 Road Greenwood, IN 46142 317-887-0729 fax: 317-881-1277 Model: Service Department fax: 317-885-8683 www.Temptek.com Serial Number : E-mail: sales@Temptek.com...
  • Page 3 INSTRUCTION MANUAL CF INSTRUMENT With AIR-COOLED MODELS COVERING INSTALLATION OPERATION MAINTENANCE TEMPTEK, INC. 525 East Stop 18 Road Greenwood, IN 46142 Phone: 317-887-0729 fax: 317-881-1277 Service Department fax: 317-885-8683 www.Temptek.com E-mail: sales@Temptek.com...

  • Page 4: Table Of Contents

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled TABLE OF CONTENTS GENERAL Introduction Safety Receiving instructions 1.4 Efficiency Clean air act Water Treatment Components INSTALLATION General Unit location To and From process connections Air-cooled condenser Electrical connection...
  • Page 5 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled RELATED DRAWINGS Typical Electrical Mechanical Schematic APPENDIX Operations below 48°F fluid or 38°F ambient 8.1 Refrigerant pressure-temperature chart Inhibited propylene glycol Chiller capacity and derate chart Page: 5 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142...
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  • Page 7: General

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled GENERAL Introduction Safety Receiving Instructions Efficiency 1.4 Clean Air Act Water Treatment Components Page: 7 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...

  • Page 8: Introduction

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled INTRODUCTION This manual covers portable chillers from 1/4 to 1.5 tons (1 to 5.26 kW) of cooling capacity using the CF-1 microprocessor control instrument and hermetic compressors. The standard fluid operating temperature range for this chiller is 20°F to 65°F for units using R-134A refrigerant. Units equipped with a CCPR valve operate up to 90°F. Units using other refrigerants have different standard operating ranges.
  • Page 9 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled When working on this equipment, observe precautions in literature and on tags, stickers and labels located on the equipment. Wear work gloves and safety glasses. WARNING: This equipment contains hazardous voltages that can cause severe injury or death.

  • Page 10: Receiving Instructions

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled RECEIVING INSTRUCTIONS Chillers are shipped skid mounted and wrapped in plastic prior to shipment. Check the overall condition of the equipment prior to accepting delivery. Check for visible damage and document any evident damage on the delivery receipt.

  • Page 11: Components

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WARNING: Improper water treatment will void unit warranty. WATER TREATMENT The use of untreated or improperly treated water in a portable chiller may result in scaling, erosion, corrosion, algae or slime.
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  • Page 13: Installation

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled INSTALLATION General Unit Location To and From Process Connections Make-Up Water Supply Connection Air-Cooled Condenser Installation Water-Cooled Condenser Installation Electrical Connection Page: 13 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142...

  • Page 14: General

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled GENERAL Chillers are shipped skid mounted and wrapped in plastic prior to shipment. Check the overall condition of the equipment prior to accepting delivery. Check for visible damage and document any evident damage on the delivery receipt. Shipping damage is the responsibility of the carrier.

  • Page 15: To And From Process Connections

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled TO AND FROM PROCESS CONNECTIONS Use appropriately rated hose or fluid piping to connect the process From Process To Process piping going to your process to the “to process” connection on the This label marks the chiller. To Process connection...

  • Page 16: Air-Cooled Condenser

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled AIR COOLED CONDENSER Air-cooled condensers require ambient air temperatures between 60°F and 90°F for efficient operation. Operating above 90°F may result in elevated condensing pressures and eventual shut-down on the high pressure limit switch. Air temperatures below 60°F may result in...

  • Page 17: Electrical Connection

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WARNING: Do not connect the unit to a voltage supply not equal to the unit’s voltage requirements as specified on the unit’s data plate. Use of incorrect voltage will void the unit’s warranty and cause a significant hazard that may result in serious personal injury and unit damage.
  • Page 18 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WARNING: Check that all electrical connections are tight before starting. Disconnect power before servicing. Follow all facility lock-out tag-out procedures. GENERAL Make certain all ground connections to the unit are properly affixed. 1. Make certain power conductor, disconnecting means, and fusing are properly sized according to the unit’s power supply requirements.

  • Page 19: Operations

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled OPERATIONS General Start Up/Operations Procedure Instrument Shut Down Page: 19 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...

  • Page 20: General

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled GENERAL Failure to follow the factory required operations procedure may adversely affect the unit’s ability to adequately control process temperature and may create a hazardous operating condition which may result in serious operator injury and/or unit damage. WARNING: Follow all Factory operations procedures. Failure to do so may create a hazardous operating condition which may result in serious operator injury and/or unit damage.
  • Page 21 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled FOR OPTIONAL AUTOMATIC FILL: Always install a manual shut off valve on the make-up water supply on the outside of the unit. When electrical power is applied to the unit but the On/Off Selector is in the ‘off’ position open the...
  • Page 22 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled LOW FLOW: If a low flow condition is present, be sure all process valves are open. If all process valves are open and a low flow conditions exists, consider the following: Low flow can cause the low refrigerant pressure limit switch to trip. To operate under a low flow condition, it is necessary to install a flow bypass system in the process circuitry. This will allow a portion of the flow to bypass the process and return directly to the chiller. This keeps the total flow above the cutoff point. The illustration below a typical bypass loop. Some models may have a factory installed bypass. Follow the instruction in paragraph “d” below to adjust the low flow bypass.

  • Page 23: Instrument/Operation

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled INSTRUMENT/OPERATION INSTRUMENT START-UP When the correct electrical power and adequate water supply pressure are supplied to the unit, it is possible to start the unit. Upon power up, the instrument displays “ChF” indicating that the unit is in Fahrenheit temperature mode or “ChC”...
  • Page 24 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled The setpoint temperature can be displayed by pressing the UP ARROW or DOWN ARROW keys. The setpoint temperature will be displayed for 5 seconds. When the compressor is turned off, the instrument will wait 3 minutes before turning it back on regardless of the To Process temperature or setpoint.
  • Page 25 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled STATUS LIGHTS COMPRESSOR: Illuminates when compressor is turned on. CAPACITY CONTROL: Illuminates when capacity control system is turned on. REFRIGERANT FAULT: Illuminates when there is a high pressure or low pressure fault.

  • Page 26: Shut Down Procedure

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled SHUT DOWN/DISCONNECT SEQUENCE PRECAUTIONS/WARNINGS WARNING: Follow all shut down procedures outlined in this manual. The operator must follow all shut down procedures outlined in this manual. If the operator fails to follow all procedures outlined in this manual, an unsafe condition can develop resulting in damage to the unit or personal injury.

  • Page 27: Troubleshooting

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled TROUBLESHOOTING Unit Will Not Start Compressor Hums But Will Not Start Shuts Off On High Pressure Shuts Off On Low Pressure Compressor Shuts Off On Internal Overload Low or No Process Pressure or Water Flow...

  • Page 28: Unit Will Not Start

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WARNING: Before troubleshooting or servicing this unit, follow all company lock-out tag-out procedures. UNIT WILL NOT START Power off. Check main disconnect. Main line open. Check fuses. Loose terminals. Tighten terminals with POWER OFF.

  • Page 29: Shuts Off On Low Pressure

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled SHUTS OFF ON LOW PRESSURE CONTROL Note: Units may be equipped with either an adjustable or non-adjustable “fixed” low pressure switch. The adjustable or fixed low pressure switch will automatically resets when the pressure rises above the cut-in pressure. If this does not occur contact the Manufacturer’s service...

  • Page 30: Compressor Shuts Off On Internal Overload

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled tube for damage. Have repaired or replaced if defective by a refrigeration service man. COMPRESSOR SHUTS OFF ON INTERNAL OVERLOAD Control does not reset. Have compressor windings and internal solid state safety control checked by a refrigeration serviceman.

  • Page 31: Coolant Pump

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled COOLANT PUMP The vane pump is designed to operate at a specific flow and pressure at the maximum run load amp draw of the motor. Too little flow can overload the motor and cause the overload circuit to open and stop the pump. If the overload trips, check for electrical shorts, loose wires, or blown fuses. If these check OK, reset the overload circuit and restart the chiller.
  • Page 32 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled Purchase a new instrument and repair the old one as a back up. If you are sending your instrument back for repair include this form in the box. Do not disassemble the instrument.

  • Page 33: Maintenance

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled MAINTENANCE Warranty Service Procedure Periodic Preventative Maintenance Special Maintenance Checking the Refrigerant Charge Page: 33 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...

  • Page 34: Warranty Service Procedure

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WARRANTY SERVICE PROCEDURE In the event of a problem with a chiller that can not be resolved by normal troubleshooting procedures, the customer is invited to consult the Service Department for assistance.

  • Page 35: Special Maintenance

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled SPECIAL MAINTENANCE Any service of the refrigeration system must be accomplished by a certified refrigeration technician. Addition of compressor oil. Addition of refrigerant. Repair of a refrigerant leak. Adjustment of super heat. Changing of filter-drier or drier core. Repair of a refrigeration solenoid. CHECKING THE REFRIGERANT CHARGE All standard chillers are manufactured with thermostatic expansion valves as the metering device to the evaporator.
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  • Page 37: Components

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled COMPONENTS Water System Refrigeration System Options Page: 37 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...

  • Page 38: Water System

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled WATER SYSTEM MOTOR/PUMP ASSEMBLY: The motor/pump assembly circulates chilled fluid to the process loop. The pump assembly is built of total stainless steel to maintain water quality. RESERVOIR. The vented reservoir is sized for the chiller Typical Coolant Pump application to support the flow rate. The reservoir provides a stable water temperature under varying load conditions.
  • Page 39 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled (boil off) to absorb heat (BTU) from the process fluid. As the heat is absorbed, the process fluid is chilled (figure 6.2H). CAPACITY CONTROL SOLENOID: The chiller is equipped with a capacity control feature. The capacity Typical Filter Drier control feature matches the chiller capacity to the cooling load to provide temperature control and to prevent short cycling of the compressor.

  • Page 40: Options

    CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled UNIT OPTIONS LOW FLOW BYPASS: If your process will experience lower than design flow rates or intermittent flow, a low flow bypass valve will be required. OVERHEAD PIPING KIT: To avoid reservoir overflow during Typical optional automatic low shut down periods from overhead piping, The Factory flow bypass valve.
  • Page 41 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled RELATED DRAWINGS Typical Electrical Typical Mechanical Page: 41 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...
  • Page 42 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled Electrical (typical) POWER ENTRY GROUND 1 MOL PUMP COMPRESSOR FAN MOTOR FAN MOTOR (OPTIONAL) UNIT TRANSFORMER ON/OFF 110VAC SEC. GROUND SNUBBER POWER ON LEVEL SWITCH WATER MAKE-UP SOLENOID (OPTIONAL)
  • Page 43 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled mechanical schematic ITEM DESCRIPTION Compressor Air cooled condenser Liquid receiver Filter-drier Refrigerant sight glass Expansion valve Evaporator Pump To process connection From process connection Reservoir tank 12 Low flow bypass Refrigerant safety switch Page: 43 TEMPTEK, INC.
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  • Page 45 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled Appendix Operations Below 48°F Refrigerant Pressure-Temperature Chart Inhibited Propylene Glycol Chiller Capacity and Derate Chart Mechanical Schematic Page: 45 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142...
  • Page 46 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled OPERATIONS BELOW 48°F FLUID OR 38°F AMBIENT The chiller is never to be operated below 48°F leaving water temperature without several precautionary measures. All controls are factory adjusted for 48°F and above operations.
  • Page 47 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled in automotive engines. Unfortunately, silicates can gel and cause deposits to foul and insulate heat exchanger surfaces. In your chilling system that can mean higher energy costs, high pumping costs, and possibly even shut downs for system cleaning. We recommend the use of DowFrost or Monsanto DFS-1.
  • Page 48 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled REFRIGERANT PRESSURE-TEMPERATURE CHART Page: 48 TEMPTEK, INC. 525 East Stop 18 Road Greenwood, Indiana 46142 317-887-6352 Fax: 317-881-1277 Email: service@Temptek.com...
  • Page 49 CF Series Portable Chiller : 1/4 - 1.5 Tons : Air-Cooled INHIBITED PROPYLENE GLYCOL To operate liquid chillers below 48°F, it is necessary to add inhibited propylene glycol to the circulating system to lower the freeze point and prevent damage to the cooling system. Inhibited propylene glycol contains corrosion inhibitors which are compatible with most industrial heat transfer surfaces.
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