NEW model including high efficiency EC motor which provides continuously variable fan speed (via optional 0-10V dc input) and high static pressure performance.
Note: In Q2 2018 the fan speed setting instructions in the Installation Instructions changed. The first serial no. of units using the upgraded ALC board (201-000-091) was 925952. Previous instructions here.
Q1 2022: Alternative fan motor supplied in units from S/N 1005880. IMDL 40Y-SPE wiring: Download