Trane’s Reliability Testing Facility * Pureairzones

XL19i Heat Pump	XV90 Variable Speed Gas Furnace
Outdoor Unit Testing Procedures:	Gas Furnace Testing Procedures:

Psychrometric Lab Tests:

Run tests according to ARI Standard 210/240. Indoor rooms capable of simulating temps of 40 F to 100 F. Outdoor rooms simulate -20 F to 120 F.

Compressor Motor Tests:

Compressor motors are tested at five to six times the rated current and at twice normal temperatures. Compressor is turned on and off at cycling rates ten times faster than normal for weeks at a time.

Compressor Calorimeter Testing:

Capacity and development tests are conducted in a thermally controlled environment, unmanned and collecting data continuously.

Compressor Life Test Room:

50 test stands for testing mechanical loadings, high-pressure refrigerant charge, bearing stresses, fatigue stress, chips contamination in the refrigerant and more.

Rain Room Tests:

Underwriters Laboratory (UL) rain tests conducted at 6-inches per hour to detect any risk of shock from electrical components.

Materials And Processes Lab Tests:

Ongoing testing on alternate refrigerants, metallurgy, oils, powder paint processes and more.

Rain/Fog/Low Temperature Room Tests:

Tests demand defrost controls, ice build-up, oil migration and cold start-ups for motors and compressors.

Why We Test:

Performance.

Prescribed by ARI and carried out with tests in accordance with ASHRAE standards.

Reliability.

Trane’s reliability tests exceed industry standards. For example, a 2,000-hour salt spray test is run on fin-type coil samples to check corrosion levels. Industry standards require 1,000 hours of testing. Trane also field-tests units in real-world environments to monitor the harmful effects of salt spray on painted surfaces, Spine Fin coils and electrical components.

Safety.

Required by UL, safety tests consist of electrical component temperature and pressure testing. Trane‘s safety tests are conducted at extremes higher than required by industry standards.

Simulation Of Data.

Airflow and sound tests are conducted in order to simulate product performance.

Heat Exchanger Thermal Stress Test:

ANSI.Z21.47 residential gas furnace design standards require all furnace heat exchangers to pass a 10,000-cycle stress test without failure. Trane’s patented heat exchanger design successfully passed this test five times.

Heat Exchanger Corrosion Test:

Trane’s heat exchangers are tested with “chlorine-spiked fuel” to simulate operation with contaminated combustion air. The corrosion test is operated for a minimum of 100 days and 12,000 cycles and provides the assurance of long-term reliability.

Heat Exchanger Pressure Decay Test:

Each individual heat exchanger is pressure tested to comply with the ANSI.Z21.47 test standards. Trane goes one step further and stamps the test station number into the corner of each heat exchanger that passes the test. This stamp of approval provides a visual confirmation of a gas-tight heat exchanger and approval for use in a Trane furnace.

Combustion Testing.

There is an extensive set of combustion and emission tests required for design certification. Trane not only meets these industry standards, but also routinely conducts more stringent tests in order to produce a more robust design.

Electronic Verification Of Parts:

Key furnace components are electronically verified for each individual furnace model by scanning the bar code label. The end of line run test requires all critical parts to be verified before the test can begin.

End Of Line Run Test:

Trane fires each furnace and cycles all of the components. The computer controlled run test automatically sequences the furnace through a series of tests and will only print a shipping label for furnaces that pass. The test data for each furnace is permanently stored for use by Trane’s field support personnel.

Daily Audits.

Compliance audits are required in order to maintain agency approval. Trane exceeds these requirements by performing a daily audit of furnaces built on each assembly line.

Trane reliability is the result of a long history of comprehensive component and system testing – testing that not only meets industry standards, but exceeds them. That’s because at Trane, we set industry-leading standards.

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