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: TRHDL-300-SD, TRHDL-460-SD, TRHDL-850-SD
TRHSL-300-SD, TRHSL-460-SD, TRHSL-850-SD
October 2023 - current (2310 - current)
Humiditherm Deflector Installation