Controller for FAS2020 / N3300 / N3600 — Part Nos. 111-00237, 111-00237+E3, 111-00451+A0, 111-00451

Replacement controller module compatible with FAS2020 series and N3300 / N3600 systems. This item corresponds to part numbers 111-00237, 111-00237+E3, 111-00451+A0 and 111-00451 and is sold as the direct spare or upgrade for units using those SKUs. Ideal for restoring controller functionality in systems that require any of the listed part numbers; fits the original mounting and interface specifications.