PFS – Positive Flow Switch

HMI PFS Series – Positive Flow Switch

PFS Positive Flow Switch Information Sheet – Printer Friendly (PDF)

The HMI Hoyme PFS Positive Flow Switch is an inline duct switch with features:

  • Typically comes in sizes of 4″ – 9″ in diameter with an End Switch
  • Contact us if other sizing is required
  • Switch itself is mounted on the outside of the duct
  • Activated on positive air flow and is not affected by pressure or “buildup” in the duct
  • Switch is available in 24Vac and 120 Vac Models
  • Can be mounted Vertically “Up” or Horizontally
PFS Positive Flow Switch – 24 Vac Model
Hoyme-PFS-0600-024-inside-viewHoyme-PFS-0600-024-bottom-view
PFS Positive Flow Switch – 120 Vac Model
Hoyme-PFS-0600-120-inside-viewHoyme-PFS-0600-120-side-view

Model Number Identification:

PFS – 0*00 – 024

Where * is the size of the Damper Diameter in Inches, and for 120 Vac Option use 120 instead of 024 on the part number.

For example:

8″ – 24 Vac model Positive Flow Switch8″ -120 Vac model Positive Flow Switch
PFS – 0800 – 024PFS – 0800 – 120

PFS Positive Flow Switch Information Sheet – Printer Friendly (PDF)