Greenheck offers centrifugal fans meeting UL Listing criteria that align under three UL Standards: Power Ventilators (UL 705), Power Ventilators for Smoke Control, and Power Ventilators for Restaurant Exhaust (UL-762).

UL-705 is concerned with mechanical and electrical construction that assures safe operation of the fan. UL-705 is offered on: inline models AX, TBI-CA, TBI-FS, TDI, TCB, TCBRS, TCBRU, TCF, QEI(D) VAD(S), VAB(S), TAUB, TAUB-CA and TAUD; lab exhaust fan models Vektor-H, HS, MD, MH, MS, CD, CH and CS; and scroll housing centrifugal models SFB, SFD, USF, FJC, FJI, BIDW, and AFDW.

Power Ventilators for Smoke Control is concerned with the removal of smoke laden, and potentially high temperature vapors in the event of an emergency. This listing is available on: inline models AX, TBI-FS, TCF, QEI(D), TAUB; and scroll housing centrifugal model USF.

UL-762 is concerned with fans designed for the removal of smoke and grease laden vapors with airstream temperatures up to 375º F. UL-762 is available on: inline models TCB and QEI; lab exhaust fan model Vektor-H; and scroll housing centrifugal model USF.

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