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TestEquity 115A-EX, Operation And Service Manual

The TestEquity 115A-EX Operation And Service Manual is available for free download from our website. This manual provides detailed instructions on how to use and maintain your TestEquity 115A-EX product. Easily access the manual to ensure optimal performance of your equipment.

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Chapter 8 – Maintenance 

 

 

TestEquity 115A-EX Temperature Chamber 

Page 8-9

 

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. 

 

The following is a list of the kinds of parts that you may want to purchase in advance. 

 

Electrical Parts 

Contactors 

Relays 

Heat Limiter 

Circulator Motor and Fan 

Switches 

 

Refrigeration Parts 

Solenoid Valve 

Compressors 

Summary of Contents for 115A-EX

Page 1: ...115A EX Temperature Chamber Serial Number X150139 and above 230 V 50 Hz Input Operation and Service Manual TestEquity LLC 6100 Condor Drive Moorpark CA 93021 Support 877 512 3457 Toll Free 805 480 06...

Page 2: ......

Page 3: ...__________________________________________________________________ 3 2 Loading the Chamber ____________________________________________________________3 3 Port Plugs __________________________________...

Page 4: ...ng System ________________________________________________________________________ 8 5 Refrigeration System____________________________________________________________________ 8 5 Troubleshooting ____...

Page 5: ...properly grounded and polarized outlet CAUTION The minimum clearance you should allow for proper ventilation around the chamber must be at least 15cm 6 from both the left and right side and 30cm 12 fr...

Page 6: ...ts into your eyes WARNING This chamber operates at extreme temperatures Avoid contact with air objects and surfaces that are hot or cold to prevent severe burns or frostbite Protective gloves are reco...

Page 7: ...sure that no damage has occurred in shipment Installation Location The chamber will produce a moderate amount of heat during normal operation Locate the chamber in an area with adequate ventilation t...

Page 8: ...he dew point moisture will condense out of the air The effect is ice or frost during low temperature operation When the chamber is heated above 0 C or the cooling system turns off the ice or frost wil...

Page 9: ...ically turns the refrigeration system on or off as required based on the deviation from temperature set point Refer to the separate F4 or F4T Temperature Controller manual for details on how to use th...

Page 10: ...point The CONDITIONING Switch does NOT illuminate in any position CONDITIONING Switch EVENT 1 Mode When the CONDITIONING Switch is in the EVENT 1 position you can enable and disable all chamber funct...

Page 11: ...G This chamber operates at extreme temperatures Avoid contact with air objects and surfaces that are hot or cold to prevent severe burns or frostbite Protective gloves are recommended CAUTION If your...

Page 12: ...ring low temperature operation or water when maintaining over 0 C and cooling is required To avoid moisture condensation make sure the port plugs are inserted at all times Also avoid opening the chamb...

Page 13: ...nd is written by the manufacturer Watlow for a wide variety of applications and configurations Not all features or functions are applicable Only the capabilities of a model PM6L1AJ AAAABAA are applica...

Page 14: ...than your actual chamber temperature set point to prevent nuisance tripping 5 Press the RESET Key to return to the Home Page 6 The upper display will show the actual chamber temperature while the low...

Page 15: ...lowing GN2 Gaseous Nitrogen Installation Option TE 1009 Connect a supply of GN2 with a maximum pressure of 100 psig to the 1 4 inch FPT fitting which is designated PURGE on the rear panel Dry Air Inst...

Page 16: ...adjust the flow of purge gas into the chamber The flowmeter has a scale calibrated in SCFM The flow of purge gas should be adjusted to the minimum amount required to obtain the desired drying in the...

Page 17: ...ttle you can do to improve upon the designed in performance TestEquity does NOT recommend using CO2 or LN2 in this chamber to achieve faster cooling due to reliability and safety considerations so it...

Page 18: ...This is the ability of the temperature controller to accurately display a temperature measurement when compared to a standard The controller display accuracy is 1 66 C However the total measurement ac...

Page 19: ...ou would like to use is qualified 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 fin...

Page 20: ......

Page 21: ...igerant R 508B Dupont SUVA 95 Compressors 1 2 HP x 1 3 HP hermetic compressors in a cascade configuration Condenser Air Cooled Heater Power 600 Watts Input Power 230 VAC nominal 209 to 253 VAC 50 Hz 1...

Page 22: ......

Page 23: ...trained personnel only Preventive Maintenance Intervals Daily or As Needed Clean chamber interior and exterior Listen for abnormal noise or vibration Every 6 Months Inspect the door seal Clean the co...

Page 24: ...clude Circulator motor and fan noises with compressors off Compressor start up and running noises sequential starting of compressors Condenser fan noises Valve cycling noises How to inspect the door s...

Page 25: ...ent of controller accuracy These variations called gradients are a function of the physical design of the chamber and its airflow the characteristics of the test sample and how it is oriented in the c...

Page 26: ...er should heat up to about 80 C and begin controlling HEAT Light cycles ON OFF within approximately 15 minutes 5 The chamber temperature should slowly increase and stabilize to 85 C It should NOT over...

Page 27: ...de condenser The cascade condenser is a heat exchanger that has one circuit which is the evaporator of the high stage and another circuit which is the condenser of the low stage The high stage uses re...

Page 28: ...ge pressure switch PS1 If the discharge pressure exceeds 280 PSIG the PS1 will energize solenoid valve SV1 to dump refrigerant into the expansion tank The expansion tank also provides sufficient volum...

Page 29: ...e wall Cools down too slow 1 Does not meet published specifications with empty chamber and ambient temperature is not over 80 F 1 Low charge leak Solenoid valve SV1 is defective doesn t close complete...

Page 30: ...pump and manifold gauge to the suction and discharge ports 3 Evacuate the system to at least 100 microns Do NOT guess You must use a micron gauge 4 Do NOT put any additives in the system Pentane or p...

Page 31: ...nnot 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...

Page 32: ...iming Module Airotronics THCU30SC TM1 200287 1 ea Major Refrigeration Parts Description Mfr Mfr Part No Ref Part Qty UOM Accumulator CUSTOM 100345 4 100345 1 Ea Cap Tube 0 050 x 10 ft HS J B or equiv...

Page 33: ...d Limit Sides both Alt high High only or LoW Low only L hY Limit Hysteresis 2 Change not recommended A ty Alarm Type oFF Do Not Change PAr1 Upper Display ACPu Alt none PAr2 Lower Display Lst Alt Lh s...

Page 34: ......

Page 35: ...Purchaser to return the Equipment to TestEquity when such return is feasible The following parts are excluded from this limited warranty and are sold as is or are considered expendable interior light...

Page 36: ......

Page 37: ...Chapter 10 Drawings...

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