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User & Technical Manual
DI-02A Series
Rev 3.0

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Summary of Contents for Delta-T DI-02A Series

  • Page 1 User & Technical Manual DI-02A Series Rev 3.0...
  • Page 2 Title: DI-02A Air Conditioner User & Technical Manual Department: Engineering Objective: To provide important information for maintenance, diagnostics and advance operations of the DELTA-T DI-02A Series Air Conditioners. Revision History: Date Owner Description of Changes 01-16-13 B. Slotnick New Format Initial Release 02-05-13 B.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Overview Inspecting the Equipment Unpacking the Air Conditioner Moving the Air Conditioner Unit Label Operation Preliminary Testing Mounting the Air Conditioner Unit Specifications Options System Faults Digital Temperature Controller Programming Preventative Maintenance Field Serviceable Parts Safety Information Troubleshooting Guide Physical Dimensions Electrical Schematic...
  • Page 4: Overview

    Overview Thank you for your purchase of the DELTA-T Special Purpose Air Conditioner. Our air conditioning equipment is carefully designed to cool and dehumidify the air in electronic component enclosures. ISC has designed air conditioners for all types of electronic equipment enclosures providing capacity from 1,000 to 20,000 BTUH.
  • Page 5: Moving The Air Conditioner

    S/N:__________________________________________ Operation DELTA-T air conditioners will lower (or increase as necessary) the temperature inside an enclosure to ensure its proper operational temperature. Our air conditioners, when sized properly, will provide cooling or heating automatically controlled by the temperature digital controller.
  • Page 6: Preliminary Testing

    The cooling is done using a simple refrigeration cycle. A product of this simple refrigeration cycle is excess humidity that condenses to a liquid. DELTA-T air conditioners are designed using an advanced refrigeration cycle and are equipped with a Condensate Removal System that changes the excess humidity liquid into a vapor which is then vented to the atmosphere.
  • Page 7: Mounting The Air Conditioner

    Mounting the Air Conditioner Using the template supplied, determine where the air conditioner is to be mounted and assure that all required cuts and holes will not interfere with or damage the enclosure or its contents. Assure that there is a 3” clearance between walls / obstructions and the air conditioner for the condenser supply air and return air flow so that it is not restricted.
  • Page 8: Unit Specifications

    Unit Specifications The following table provides electrical and refrigeration specifications for the DI-02A Series Air Conditioners. DI-02A Series Nominal Capacity Rating: 2,000 BTUH Standard Maximum Ambient: 131°F Unit Weight: 120 VAC – 44lbs, 230 VAC – 49lbs Operating Inrush Loading...
  • Page 9 THIS PAGE IS INTENTIONALLY LEFT BLANK 4421 Tradition Trail ● Plano, Texas 75093 ● 972 -964-2700 ● 800-836-7472 URL: www.iscenclosurecooling.com ● Email: iscinfo@iscsales.com SP-ENG-210-100-08 Rev 3.0 P a g e...
  • Page 10: Options

    Options The DI-02A Series Air Conditioners may be ordered with the following options. Review the list below for the specifications and functions of the option(s) that apply to your unit. Built-in Heater This unit is configurable to include a Built-in Heater to increase the temperature of your enclosure in lower temperature conditions.
  • Page 11 Refer to Advanced Digital Temperature Controller Programming section on page 8 for details on changing these parameters. Celsius Programming Celsius Programming option allows the user to control the DELTA-T Air Conditioner in SI units. This feature can be programmed into the digital temperature controller at time of manufacturing. External Heat Output This option allows you to add an external heater to be located anywhere in your enclosure.
  • Page 12 Ethernet/IP Controller Output This option provides the ability to communicate with the DELTA-T Air Conditioner controller via the Ethernet/IP protocol. You can monitor and control all settings from a remote location with a PLC.
  • Page 13: System Faults

    System Faults If any of the critical control parameters exceed limits, the compressor is turned off and an alarm condition is indicated on the front panel. There are three main conditions that can shut the AC compressor down:  The condenser high temperature alarm ...
  • Page 14 HOW TO ACCESS HIDDEN MENU 1…….. Enter the Programming mode by pressing the SET + DOWN arrow keys simultaneously for 3 seconds. The “F” LED starts blinking. Select the required parameter by pressing the UP or DOWN arrow key. Press the SET key to display its value.
  • Page 15 Menu Factory Operating Function Operation Parameter Unit Location Default Range Heater or Dry Contact Auxiliary Hidden 1 - 45 °F Differential Menu 2 Hysteresis Maximum Alerts with “HA” when Hidden Temperature maximum temperature has 45 - 302 °F Menu 2 Alarm been exceeded Minimum...
  • Page 16: Preventative Maintenance

    Loss of Refrigerant DELTA-T air conditioners are meticulously leak and run tested after assembly. If a leak in the system should develop due to shipping damage or mechanical vibration, the leak must be detected, repaired and the refrigerant charge restored to the system by a qualified refrigeration professional.
  • Page 17: Field Serviceable Parts

    Conditioner has been tested by UL to meet the safety requirements of the UL484 specification. When working with the DELTA-T Air Conditioner always makes sure shroud is installed. Verify proper voltage is applied to unit as specified in the UL label of the Air Conditioner. In the event of a field service repair, power down unit using the power on/off switch and disconnect power from unit.
  • Page 18: Troubleshooting Guide

    Troubleshooting Guide The following guide provides a flow chart to identify a problem, determine the root cause and identify the action needed to correct an issue. Verify input power meets voltage Unit Will Not Run Is Unit Verify Power On/Off requirements as Connected? Switch is on position...
  • Page 19 Measure Temperature at Evaporator Is evaporator Is Compressor Unit Not Cooling & Verify Heat Load Requirements. Is Fan on? unit capacity adequate for internal head load? Possible low refrigerant. Check for faulty evaporator fan Check Setpoint. Is Is snowflake Is there voltage to Setpoint LED lit on compressor? Use...
  • Page 20 Single or Potential bad P1 / P2 Flashing Error Multiple connection. Check combination Codes Codes? green connector flashing? behind controller. Refer to Alarm Signals in Digital Temperature Controller Check Low Pressure Programming Section Switch Connections and Verify Pressure switch is closed. Use meter.
  • Page 21: Physical Dimensions

    Ensure air tight Is Air Conditioner sealed seal between air against enclosure Water overflow / Check drain, is it conditioner and properly, tightly sealed excessive plugged? enclosure. Make and door closed? sure door is closed. Clean condensate pan and drain; add 1 tbsp bleach to Contact Customer Service upper pan monthly to kill mold...
  • Page 22 THIS PAGE IS INTENTIONALLY LEFT BLANK 4421 Tradition Trail ● Plano, Texas 75093 ● 972 -964-2700 ● 800-836-7472 URL: www.iscenclosurecooling.com ● Email: iscinfo@iscsales.com SP-ENG-210-100-08 Rev 3.0 22 | P a g e...
  • Page 23: Electrical Schematic

    Electrical Schematics System Schematic Digital Controller Schematic Note: Schematics apply to all voltages; optional accessories wiring not provided in this document. If you require electrical schematic with options contact our technical support and provide your model number. 4421 Tradition Trail ● Plano, Texas 75093 ● 972 -964-2700 ● 800-836-7472 URL: www.iscenclosurecooling.com ●...
  • Page 24: Warranty Information

    Warranty Information ISC products are warranted to be free of defects in workmanship, materials and components. The warranty period applies from date of shipment for one year. Replacement components have a one year warranty period, except for hermetic system components, which have a 90 day warranty period. The above warranty applies when the equipment is operated under the following conditions: ...
  • Page 25: Return Material Authorization (Rma) Procedure

    Customer will pay all freight charges. Out of Warranty Repair If your DELTA-T air conditioner is out of warranty and requires repair, simply call ISC Customer Service at (800)-836-7472 for an RMA number. Customer Service will help you determine what repairs or parts are needed and, if possible, an estimate of the cost.
  • Page 26: Appendix A - Power Connector

    Appendix A Phoenix Contact Power Connector Instructions Scope: Instructions for connecting power wires to air conditioners equipped with a “Phoenix Contact” power connector. 1 - Remove cover from chassis using T25 Torx bit. NOTE: If using stranded wires, it may be difficult to insert into the receptacles without releasing the 2 - Push both orange tabs in to release male spring tension as described below in the removal...

This manual is also suitable for:

Di-02a-126Di-02a-236

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