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The Tronair H-2656 Remote Thermometer is a replacement temperature gauge for select Tronair aircraft cabin pressurization units, helping technicians monitor air temperature during pressurization and leakage testing procedures. Maintaining accurate temperature readings is important for safe operation and reliable test results, especially when verifying airflow performance and cabin leakage calculations.
| General Information | |
|---|---|
| Part # | H-2656 |
| Manufacturer | Tronair |
| Shipping Information | |
|---|---|
| Product Weight | 1.4 lbs. |
| Product Dimensions | 7.5 x 4.5 x 4.5 in. |
| Schedule B | 9025198080 |
| ECCN | EAR99 |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The Tronair H-2656 is used to monitor airflow temperature on compatible Tronair cabin pressurization units during aircraft cabin leakage testing and related procedures. Temperature readings help technicians confirm operating conditions and support accurate test data collection.
Yes. The H-2656 is listed as a panel mount thermometer, meaning it installs directly into the unit’s instrument panel for easy visibility during operation. This makes it easier for technicians to monitor temperature while controlling airflow and system pressure.
Air temperature affects airflow calculations because air is a compressible fluid influenced by both pressure and temperature. Monitoring temperature helps ensure leakage rates can be properly corrected and interpreted during testing.
Yes. The cabin pressurization unit uses airflow temperature during the correction process to determine SCFM (Standard Cubic Feet per Minute). Accurate temperature readings help ensure the correction factor is applied correctly, resulting in consistent leakage measurement results.
Temperature is displayed in the Airflow Measurement Data section of the instrument panel on compatible cabin pressurization units. It’s grouped with other key measurement instruments so the operator can track conditions in real time during testing.
The H-2656 is used to measure airflow temperature within the pressurization unit piping, not cabin comfort temperature. This reading is used specifically for test measurement and airflow correction purposes during maintenance procedures.
On compatible Tronair cabin pressurization units, the thermometer is used alongside system pressure and pressure differential instruments that support airflow measurement and leakage testing. Together, these instruments help technicians record the correct data for test documentation and evaluation.
Cabin pressurization unit instrumentation should be verified for calibration status to maintain accuracy, especially when used for test and inspection procedures. If temperature readings appear inconsistent, replacing or inspecting the thermometer may be recommended as part of troubleshooting and maintenance.
If temperature readings seem inaccurate, it’s important to stop and verify the instrumentation condition before continuing testing. Since airflow temperature affects leakage calculations, replacing the thermometer with the correct compatible part can help restore accurate measurement performance.
The best way to confirm compatibility is to match the part number to your unit’s illustrated parts list and model documentation before ordering. If you’re unsure, PJi’s aviation specialists can help verify the correct replacement remote thermometer for your specific cabin pressurization unit configuration.
