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Operation and Service Manual
TestEquity LLC
6100 Condor Drive
Moorpark, CA 93021
Support:
877-512-3457 Toll Free
805-480-0638
Corporate:
800-732-3457
805-498-9933
http://www.testequity.com
Copyright © 2011-2018 TestEquity LLC
Model 123C
Temperature Chamber
Serial Number 330218 and above
Rev. 2.2, February 1, 2018
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Summary of Contents for TestEquity 123C
- Page 1 Model 123C Temperature Chamber Serial Number 330218 and above Operation and Service Manual TestEquity LLC 6100 Condor Drive Moorpark, CA 93021 Support: 877-512-3457 Toll Free 805-480-0638 Corporate: 800-732-3457 805-498-9933 http://www.testequity.com Copyright © 2011-2018 TestEquity LLC Rev. 2.2, February 1, 2018...
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Page 3: Table Of Contents
Relief Vent ___________________________________________________________________________ 5-2 Chapter 6 – Frequently Asked Questions ________________________________________ 6-1 Chapter 7 – Specifications ____________________________________________________ 7-1 Model 123C Chamber Specifications ________________________________________________ 7-1 Chapter 8 – Maintenance _____________________________________________________ 8-1 Preventive Maintenance Intervals __________________________________________________ 8-1 Daily or As Needed _____________________________________________________________________ 8-1... - Page 4 Table of Contents Maintenance Procedures __________________________________________________________ 8-2 How to Clean the Chamber Interior and Exterior ______________________________________________ 8-2 How to Listen for Abnormal Noise or Vibration ______________________________________________ 8-2 How to Inspect the Door Seal _____________________________________________________________ 8-2 How to Inspect the Refrigeration Machinery Compartment ______________________________________ 8-3 How to Verify the Performance ___________________________________________________________ 8-4 How to Inspect the Electrical Compartment __________________________________________________ 8-5 How to Clean the Condenser ______________________________________________________________ 8-5...
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Page 5: Chapter 1 - Safety Instructions
6" from both the left and right side, and 12" from the rear. ! CAUTION: This chamber is designed for operation in a conditioned laboratory environment. Operation above 30°C (85°F) or below 16°C (60°F) ambient room temperature is NOT recommended. TestEquity 123C Temperature Chamber Page 1-1... -
Page 6: Operation Safety Notices
The independent EZ-Zone Limit Controller functions as the main protection device. ! CAUTION: The EZ-Zone Limit Controller has been properly configured by TestEquity to match the chamber’s system requirements. Improper modifications to these setup values can result in unreliable and unsafe operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing. -
Page 7: Chapter 2 - Installation
Chapter 2 – Installation Uncrating Inspect the shipping container for any signs of visible damage. Notify the carrier and TestEquity immediately if there are signs of shipping damage. The pallet is designed with ramps so the chamber can be rolled off without the need for a forklift or pallet jack. -
Page 8: Installation Location
You can purchase a condensate pump from suppliers such as Grainger (www.grainger.com). Under most circumstances, you will not see any water coming out of the drain. Page 2-2 TestEquity 123C Temperature Chamber... -
Page 9: Chapter 3 - Operation
4. Load your test sample in the chamber. 5. Turn the CONDITIONING Switch ON. Alternatively, turn the CONDITIONING Switch to the EVENT 1 position and turn the Power button on the F4T controller or EVENT 1 on the F4 controller ON. TestEquity 123C Temperature Chamber Page 3-1... -
Page 10: Front Panel Switches And Lights
The COOL Light will illuminate when the Temperature Controller turns on the cooling valve to maintain the workspace temperature. The COOL Light will cycle on/off as the workspace temperature approaches and reaches the temperature set point. Page 3-2 TestEquity 123C Temperature Chamber... -
Page 11: Loading The Chamber
Limit Controller’s temperature limits are exceeded. ! CAUTION: To prevent damage to your test sample and the chamber’s compressors, do not exceed the live load rating of the chamber. Live Load Capacity for Model 123C Temp +23°C 0°C –40°C... -
Page 12: Performance Considerations
Make sure that all connectors, wiring, pc boards, and auxiliary components can withstand the temperature extremes that they will be subjected to. In some cases, these components may not be able to last after repeated tests and should be considered expendable. Page 3-4 TestEquity 123C Temperature Chamber... -
Page 13: Chapter 4 - Limit Controller
Not all features or functions are applicable. Only the capabilities of a model PM6L1AJ-AAAABAA are applicable. ! CAUTION: The EZ-Zone Limit Controller has been properly configured by TestEquity to match the chamber’s system requirements. Improper modifications to these setup values can result in unreliable and unsafe operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing. -
Page 14: Limit Controller Keys And Displays
Then, you must press the RESET or EZ Key to resume normal operation. Silencing the Audible Alarm Turning off the Conditioning switch on the chamber front panel lets you temporarily turn off the Audible Alarm, even though the High or Low Limit condition may still exist. Page 4-2 TestEquity 123C Temperature Chamber... -
Page 15: Protecting An Energized Test Sample
Connections to the safety contacts are at relay CR1 socket, terminals 6 and 8. Plug in the relay and reposition the retaining clip when finished.. Figure 4-2 – Location of Safety Contact Connections on the Electrical Sub Panel TestEquity 123C Temperature Chamber Page 4-3... -
Page 17: Chapter 5 - Purge
Compressed Air Inlet to Dry Air System. Shutoff valve on the Dry Air System is shown in the off position. Valve must be in the on position to operate. Figure 5-1 – Dry Air Purge System Installation TestEquity 123C Temperature Chamber Page 5-1... -
Page 18: Purge Operation
A suggested starting setting is 2 SCFM. Relief Vent Excess pressure in the chamber workspace is vented through a pressure-relief check-valve, which is located within the electrical compartment. There is no need to vent this externally. Page 5-2 TestEquity 123C Temperature Chamber... -
Page 19: Chapter 6 - Frequently Asked Questions
How can I modify the chamber to cool faster? Unfortunately, there is little you can do to improve upon the designed-in performance. TestEquity does NOT recommend using CO or LN in this chamber to achieve faster cooling due to reliability and safety considerations, so it is NOT an available option. Modifying the... - Page 20 I haven’t used the chamber for a while. Is there anything I should do to prepare it for operation? Perform ALL the steps in the Preventive Maintenance Schedule before placing the chamber back into service. This will ensure that nothing has been damaged and that a leak has not developed. Page 6-2 TestEquity 123C Temperature Chamber...
- Page 21 Can/Should I put a filter in front of the condenser air inlet? No, TestEquity does not recommend this. Just follow the maintenance procedures and clean the condenser fins periodically.
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Page 23: Chapter 7 - Specifications
Chapter 7 – Specifications Chapter 7 – Specifications Model 123C Chamber Specifications Temperature Range –68°C to +175°C Control Tolerance ±0.5°C (Measured at the control sensor after stabilization) Uniformity ±0.5°C (Variations throughout the chamber after stabilization) Live Load Capacity @ +23°C 0°C... -
Page 25: Chapter 8 - Maintenance
• Inspect the door seal. • Inspect the refrigeration machinery compartment. • Verify the chamber performance. Every 6 Months • Inspect the electrical compartment. • Clean the condenser. Every 12 Months • Verify the calibration. TestEquity 123C Temperature Chamber Page 8-1... -
Page 26: Maintenance Procedures
• If the seal is not tight, adjust the door latch. The catch bracket that is mounted to the chamber has slotted holes to permit adjustment. • If the seal is still loose on the hinge side, adjust the door hinge. The hinges have slotted holes to permit adjustment. Page 8-2 TestEquity 123C Temperature Chamber... -
Page 27: How To Inspect The Refrigeration Machinery Compartment
5. Inspect for oil around refrigeration valves, fittings and joints. This may be a sign of leaks. 6. Inspect for loose hardware and tighten as required. 7. Inspect for signs of insect or rodent infestation. Yes, it does happen! TestEquity 123C Temperature Chamber Page 8-3... -
Page 28: How To Verify The Performance
Temperature Controller’s setup and tuning values have not been changed from the values as shipped from TestEquity. Also, the EZ-Zone Limit Controller high limit must be set to over +85°C (+88°C would be fine), and the low limit set to –75°C. If the chamber fails any of these tests, it should be removed from service to prevent further damage until the cause of the problem is determined and resolved. -
Page 29: How To Inspect The Electrical Compartment
NOTE: You may need to clean the condenser more frequently if the chamber is in a dusty environment. You may be able to clean the condenser less frequently if the chamber is in a very clean environment. TestEquity 123C Temperature Chamber Page 8-5... -
Page 30: How To Verify The Temperature Calibration
TestEquity recommends verifying the calibration before attempting to actually perform a calibration. The state-of-the-art instrumentation used in TestEquity chambers is of the highest quality and seldom goes out of calibration. If you try to calibrate the instrumentation before determining that calibration is necessary, you may make it worse if done incorrectly. -
Page 31: Theory Of Operation
(3), which returns any entrained oil back to the compressor’s crankcase. The vapor flows through the condenser circuit of the cascade condenser, where it is condensed back into a liquid. TestEquity 123C Temperature Chamber Page 8-7... - Page 32 The low-stage compressor turns on 30 seconds after the high-stage turns on through Timing Module TM1. This reduces the system’s starting current, while allowing the cascade condenser to get cool before the low-stage turns on. Page 8-8 TestEquity 123C Temperature Chamber...
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Page 33: Troubleshooting
Chamber interior is overloaded. bubbles in R-404A sightglass. Test sample is energized, giving reach –68°C. off heat. Circulator motor is not turning. Port plug is not in port. Door is not sealing completely. Ice on evaporator. TestEquity 123C Temperature Chamber Page 8-9... - Page 34 If compressor control Solenoid valve SV1 may be parameters in temperature defective, causing undershoots controller are as documented in in chamber temperature. the temperature controller manual. Page 8-10 TestEquity 123C Temperature Chamber...
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Page 35: Refrigeration System Charging Instructions
These are NOT do-it-yourself instructions! R-404A High-Stage Charge TestEquity does NOT recommend charging the system by relying on a clear sight glass only. Although a clear sight glass generally means the system is fully charged, it can be misleading. -
Page 36: Recommended Spare Parts
Chapter 8 – Maintenance Recommended Spare Parts Replacement parts are available from TestEquity. Parts are generally in-stock and ready for immediate shipment. Next-day delivery is always available. If you cannot risk being out of service for even one day, then you should purchase critical spare parts in advance. Although most parts are standard and available from a variety of local distributors, some parts are either harder to find or custom. -
Page 37: Major Electrical Parts
Relay, Solid State 5A Omron G3NA-205B-DC5-24 SSR9-12 200032 Purge Option Relay, Octal DPDT 10A 120VAC Idec RR2P-UCAC120 200292 Relay, Solid State, 10A, 5VDC in Omron G3NE-210T-US DC5 SSR7 200129 Purge Solenoid Valve Asco 8262G22 100305 TestEquity 123C Temperature Chamber Page 8-13... -
Page 38: Major Refrigeration Parts
A7-10-301-20 300216 Fan, Alum, 6" CUSTOM CUSTOM 301024 Port Plug, Foam, 4" CUSTOM CUSTOM 300534 Shelf with 4 Clips CUSTOM CUSTOM TE-0231 Shelf Retainer Clip Kason Style 66, #0066000008 300015 Window CUSTOM CUSTOM 300709 Page 8-14 TestEquity 123C Temperature Chamber... -
Page 39: Ez-Zone Limit Controller Setup Parameters
Improper modifications to these setup values can result in erratic performance and unreliable operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing. If there is any doubt, please call TestEquity before proceeding. Setup Menu Prompt... -
Page 41: Chapter 9 - Warranty
If the repair or replacement is performed in the FIRST YEAR from the date of invoice, TestEquity will also pay for the labor associated with the repair at the Purchaser's site, subject to TestEquity’s prior approval. During the SECOND and THIRD YEAR of the warranty period, Purchaser will be responsible for the installation and cost of installation of replacement or repaired parts. -
Page 43: Chapter 10 - Drawings
Chapter 10 – Drawings Chapter 10 – Drawings TestEquity 123C Temperature Chamber Page 10-1... - Page 45 Electrical Subpanel Component Location...
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