User manuals are sorted by product serial number and model codes. The first 4 digits of the serial number represent the manufacture date (YYMM) eg, 2203-XXXX = March 2022 build date.
Models: CLIMATRON-360-DL/-H, CLIMATRON-520-DL/-H, CLIMATRON-1100-DL/-H,
CLIMATRON-360-SL/-H, CLIMATRON-520-SL/-H, CLIMATRON-1100-SL/-H,
October 2023 - current (2310 - current)