Question 1

How do you ensure product quality and prevent refrigerant leakage?

Accepted Answer

Every unit passes performance testing, operation testing, noise and vibration testing, electromagnetic compatibility (EMC) testing and rain testing before leaving the factory. We use German-imported helium leak detection equipment instead of traditional water testing, achieving a leak detection precision of 5 g/y — approximately 2.8 times more accurate than conventional water-bath testing.

Question 2

What refrigerants do your products use?

Accepted Answer

Electric bus ACs use eco-friendly R410A and R407C, while traditional diesel and built-in models use R134a. All meet international environmental standards.

Question 3

Do you have solutions for 48℃ extreme high temperatures?

Accepted Answer

Yes, we have specially engineered high-temperature units for India and Middle East markets. They operate stably at 48℃ ambient temperature with enhanced cooling performance.

Question 4

What are your best-selling bus AC models?

Accepted Answer

Our top sellers are TCD08D (8-8.5m electric), TC45N2 (12-13m double-decker for overseas) and TCD07A (6-7m electric minibus). All are supplied to Yutong, King Long, BYD and CRRC.

Question 5

What bus lengths are your air conditioners compatible with?

Accepted Answer

TCHAIN bus air conditioners fit 6-14m vehicles, including electric minibuses, double-deckers, coaches, school buses and special vehicles. We offer over 60 models for all mainstream bus types.

FAQ Category

Product Questions

Q How do you ensure product quality and prevent refrigerant leakage?

Q What refrigerants do your products use?

Q Do you have solutions for 48℃ extreme high temperatures?

Q What are your best-selling bus AC models?

Q What bus lengths are your air conditioners compatible with?

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