| Information | Example 1 | Example 2 | Example 3 | Example 4 | | :--- | :--- | :--- | :--- | :--- | | | 4CES-6Y-40S | 4B3931 PL – 2NU | 4FSL-7K-40S | CSH 6563-60Y-40P | | Serial Number | 1688503312 | 2574414187 | 1687106567 | 1090200770 | | Year of Manufacture | N/A | N/A | 2014 | 2016 | | Key Details/Notes | Voltage: 220-240V, 50Hz | Used surplus unit | Refrigerant: R404A | Weight: 325 kg |

Before diving into how , let’s solidify why . In a service environment, skipping verification leads to three major risks:

Look for a silver or white high-durability sticker or plate wrapped around the cylindrical main shell, mid-way up the unit. 3. How to Read and Decode Bitzer Serial Numbers

Confirms the compressor is an authentic German-engineered Bitzer unit.

Ensures replacement valves, gaskets, and pistons match the exact engineering iteration.

Verifying a Bitzer compressor serial number is the most reliable way to confirm product authenticity, access technical specifications, and find correct spare parts. Counterfeit compressors are a significant issue in the HVAC-R industry, making validation a critical first step for any maintenance or installation project.

Wipe away grease to reveal the 10-digit or QR code .

The risks associated with forgery are severe:

Note: This guide focuses on the Serial Number, typically found directly below or adjacent to the model number on the data plate.

Need to verify a unit? Use the official Bitzer Software or consult your local distributor with the full model and serial number string.