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Summary of Contents for Thermal Edge HC20C Series
- Page 1 User & Technical Manual HC20C Series for Class I, Division 2 Hazardous Locations Rev 1.3...
- Page 2 Also, please refrain from using this proprietary information in any other manner, including in any other business, without Thermal Edge Inc.’s written approval. Thermal Edge Inc. reserves the right to revise and otherwise modify the Manual to reflect changes in the requirements, standards, and operating recommendations. The Manual is the sole property of Thermal Edge Inc.
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Page 3: Table Of Contents
TABLE OF CONTENTS Overview ................................4 Inspecting the Equipment ............................4 Unpacking the Air Conditioner ........................... 4 Moving the Air Conditioners ............................5 Unit Label................................5 Operation ................................5 Preliminary Testing ..............................8 Mounting the Air Conditioner ............................ 9 Unit Specifications ..............................10 Options ................................ -
Page 4: Overview
Overview Thank you for your purchase of the Thermal Edge Special Purpose Air Conditioner. Our air conditioning equipment is carefully designed to cool and dehumidify the air in electronic component enclosures. Thermal Edge 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 Conditioners
S/N:__________________________________________ Operation Thermal Edge 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 In the event of excess water vapor where the enclosure door has been left open there is an overflow hole on the bottom of every unit. Please contact Thermal Edge Inc. if you encounter excess water coming from your air conditioner.
- Page 7 Sealed Device Information: Sealed Device: Compressor Overload Protector Models B130-135-241A, B170-150*-241C manufactured by Foshan Tongbao. Model MRA98706 manufactured by Sensata Technologies. Epoxy: Manufacture of Material – Resinlab L.L.C. Designation of Material – Type EP 1295 Black Generic Name of Plastic Material – Epoxy Resin Sealed Device: Condenser Fan Switch –...
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Page 8: Preliminary Testing
Preliminary Testing Before mounting the air conditioner to the enclosure, test for proper operation. Follow the steps below prior to installation. WARNINGS The air conditioner must sit upright for 24 hours to assure the compressor oil has drained down to the compressor. -
Page 9: 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 10: Unit Specifications
Unit Specifications The following table provides electrical and refrigeration specifications for the HC20C Series Air Conditioners. HC20C Series Nominal Capacity Rating: 20,000 BTUH Maximum Ambient: 122°F Temperature Classification: T4 Unit Weight: 230VAC – 170bs, 460VAC – 247lbs Operating Inrush Loading... -
Page 11: Options
Options The HC20C 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. Low Ambient This option consists of circuitry to protect the compressor in a low ambient temperature environment. The low ambient package is designed to provide an optimum constant low current in the compressor motor during the non cooling state. - Page 12 Special Programming All Thermal Edge Air Conditioners have a Special Programming option for selecting unique pre in programmed settings for special requirements. Although most parameters are accessible in our digital controller, this option allows you to receive a unit preset to your requirements without the need to manually configure the unit.
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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 CHANGE THE SETPOINT…….. Press the SET key for more than 2 seconds to change the setpoint value. The value of the setpoint will be displayed and the “F” LED starts blinking. To change the SET value, press the UP or DOWN arrow key within 15 seconds. To store the new setpoint value, press the SET key again or wait 15 seconds.
- Page 15 P2 – Condenser Temperature Auxiliary Hidden Setpoint for Dry Contact 105 / -67 - 302 °F Setpoint Menu 2 Heater Paramete Menu Factory Operating Function Operation Unit Location Default Range Heater or Dry Contact Auxiliary Hidden 1 - 45 °F Differential Menu 2 Hysteresis...
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Page 16: Preventative Maintenance
Remove the air conditioner filter and wash if washable or replace if not washable. Dry thoroughly before replacing. THERMAL EDGE Air Filter Treatment Spray in aerosol cans or spray bottle is recommended to enhance air filter efficiency. Replacement filters are readily available from THERMAL EDGE Customer Service. - Page 17 Loss of Refrigerant Thermal Edge 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. If pressure gauges are connected to the hermetic system, be prepared to replace lost refrigerant resulting from connection and disconnection.
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Page 18: Field Serviceable Parts
Field Serviceable Parts Thermal Edge carefully designs and selects components with the maximum life expectancy. Due to OEM manufacturing tolerances, poor unit maintenance or extreme operating conditions, components may fail before their maximum life expectancy. The table below lists parts that are serviceable in the field by an Air Conditioner Technician. -
Page 19: Safety Information
Conditioner has been tested by UL to meet the safety requirements of the UL484 specification. When working with the Thermal Edge 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 and disconnect power from unit. -
Page 20: 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 requirements as Connected? shown in the UL label Please Connect Power... - Page 21 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 3 Check Setpoint. Is Is snowflake Is there voltage to Setpoint LED lit on...
- Page 22 Note: Refer to Electrical Schematics for further diagnostics. 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.
- Page 23 Note: Refer to Electrical Schematics for further diagnostics. Is fuse opening as Fuse / Circuit Check incoming power soon as unit turns supply and connections Protection for potential short circuit Nuisance Trip Check electrical specification. Verify proper recommended fuse has been selected. Does fuse open when compressor starts?
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Page 24: Physical Dimensions
Physical Dimensions 1800 Hurd Drive ● Irving, Texas 75038 ● (972) 580-0200 ● (888) 580-0202 ● Fax (972) 580-0277 URL: www.thermal-edge.com ● Email: support@thermal-edge.com SP-ENG-211-HL0-12 Rev 1.3 24 | P a g e... -
Page 25: Electrical Schematics
Electrical Schematics System Schematic Digital Controller Schematic Schematics apply to all voltages; optional accessories wiring not provided in this document. If you require Note: electrical schematic with options contact our technical support and provide your model number. 1800 Hurd Drive ● Irving, Texas 75038 ● (972) 580-0200 ● (888) 580-0202 ● Fax (972) 580-0277 URL: www.thermal-edge.com ●... -
Page 26: Warranty Information
Repair or service by unauthorized personnel. Thermal Edge must be notified of a claim in writing not later than fourteen (14) days from the date when buyer has become aware of such occurrence, or immediately, when the defect is such that it may cause damage. -
Page 27: Return Material Authorization (Rma) Procedure
Customer will pay all freight charges. Out of Warranty Repair If your Thermal Edge air conditioner is out of warranty and requires repair, simply call Thermal Edge Customer Service at (888)-580-0202 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 28 Appendix A Wago Power Terminal Block Instructions Scope: Instructions for connecting power wires to air conditioners equipped with a “Wago” power terminal block. 1 - Remove cover from chassis using T25 Torx bit. 2 -The sequence of the connecting the wires is from LEFT TO RIGHT. 3 - Connect each wire as shown by lifting the lever and inserting the wire into the receptacle directly below.
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