FENWALL FN-DH60ACD 4 Wire Duct Housing - FENWALL FN-DH60ACD

The FCI Model DH-60 Series air duct detector housing is intended for use on air handling ducts to sample air flow in the duct and allow for the detection of smoke and combustion particles. The housing is available in a 4-wire detector.configuration, and accepts either the CPD-7051D ionization detector or the PSD-7155D photoelectric detector. Air sampling is accomplished via sampling and return tubes which extend into the ducts. The DH-60 4-wire detector can operate over a wide range of AC or DC power sources; 24 VAC, 24 VDC, 120 VAC or 240 VAC. It is equipped with alarm relay auxiliary contacts which may be used directly for control applications, and has an integral, normally-energized trouble relay to supervise power and smoke detector head removal. Atransparent inspection port permits viewing of the detector alarm indicator over a wide viewing angle and inspection of the conditions of cleanliness inside the detector mounting area. The housing can be installed on either rectangular or round ducts ranging from 8 inches to 12 feet in width. The sampling tube must extend over the entire width of the duct, and the unit is equipped with a 4.25 inch exhaust tube. Optional accessories include remote test stations and annunciators.