FieldBench
ICP codes

ICP

3-flash

Protect

IGC 3-flash — example

Example on many CES rooftop IGC stickers: limit open. Confirm THIS sticker.

Walk 3-flash in Diagnose

Sign in for the next measurement

First check

1 Airflow before you touch the limit

On ICP PGC a limit is airflow or overfire until proven otherwise. Do not replace the limit first. Filter, blower wheel, A-coil, and the heat-speed setting for THIS motor (tap, model plug, or communicating CFM — not a sister SKU chart). Filters, belt, 3-phase blower rotation, rise vs the rating plate.

Expect: TES / static: External static vs the blower table for this tonnage — rooftops run dirty.

The rest of the walkthrough is Diagnose.

On the plates

  • Filters, belt, 3-phase blower rotation, rise vs the rating plate.
  • A 3-flash that returns on a clean filter is static or overfire, not a bad limit.

Plates that use 3-flash

Same number, other makers

3-flash on ICP is not the same code on these plates.