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Related Manuals for Delta-T CR-061 Series
Summary of Contents for Delta-T CR-061 Series
- Page 1 User & Technical Manual CR-061 & CR-081 Series Rev 1.3...
- Page 2 Title: CR-061 & CR-081 Air Conditioner Technical Manual Department: Engineering Objective: To provide important information for maintenance, diagnostics and advance operations of the Delta-T CR-061 & CR-081 Series Air Conditioners. Revision History: Date Owner Description of Changes 08-09-2016 B. Slotnick...
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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 Sales 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
Delta-T air conditioners operate as a “closed loop” system with no exposure or introduction of outside air. This ensures that the enclosure is separated from and is not contaminated with ambient air, dirt, chemicals, dust, moisture or foreign matter so that sensitive enclosure components are protected and are kept at your required operational temperature. -
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 on the enclosure roof and assure that all required cuts and holes will not interfere with, or damage, the enclosure or its contents. Verify that the enclosure roof is capable of supporting the weight of the air conditioner. Assure that there is a 3”... -
Page 8: Unit Specifications
Unit Specifications The following table provides electrical and refrigeration specifications for the NE050, NE060 & NE080 Series Air Conditioners. CR-061 Series Nominal Capacity Rating: 6,000 BTUH Standard Maximum Ambient: 131°F Unit Weight: 111 lbs. (120/230VAC) / 154 lbs. (480VAC) Operating... -
Page 9: Options
CR-081 Series Nominal Capacity Rating: 8,000 BTUH Standard Maximum Ambient: 131°F Unit Weight: 111 lbs. (120/230VAC) / 154 lbs. (480VAC) Operating Inrush Loading SCCR Recommended KVA Rating Refrigerant Refrigerant Low/High Voltage Current Current (Short Fuse Selection Type Amount Unit Range (Start (Running Circuit... - Page 10 Default Settings: 55°F Heat Set Point 3°F Differential At the default settings the heater turns on at 52°F and operates until temperature has reached 55°F. Refer to Digital Temperature Controller Programming section for details on changing these parameters. Corrosion Protection The copper tubing and aluminum fins used in the air conditioner refrigeration circuit are subject to damage in the presence of corrosive chemicals such as hydrogen sulfide, chlorine, etc.
- 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 Open Door Kill Switch This option provides you with an adjustable and mountable safety switch for your electronics enclosure. This switch will disable power to the air conditioner when your electronics enclosure door is open allowing you to work on your enclosure without the risk of unintentionally powering the unit. Adjustable Temperature Probe The adjustable temperature probe provides you with a 12’...
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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...
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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.
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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: 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 23: 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 24: Return Material Authorization (Rma) Procedure
Return Material Authorization (RMA) Procedure All returns require a Return Material Authorization (RMA) number for warranty or non-warranty repair, rotation of stock, damage or any other reason. IMPORTANT Returns without an RMA number will be refused and returned. Improper packaging may void warranty. - Page 25 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 to remove locking screw and then sliding cover to release mounting tabs from the chassis.