The Robertshaw 700-504 millivolt control operates via a 250mV to 750mV thermopile circuit

Its robust steel construction and 2

5-inch diameter and an Open Air Over (OAO) enclosure

it provides a vital failsafe by preventing compressor operation or system cycling under hazardous over-pressure conditions until a technician performs a physical reset and inspection

Ensure the shaft is within tolerance before installation

Fireye 19UVPS-2220 Power Supply 320735-701 The Robertshaw 700-504 millivolt controlThe Fireye 19UVPS 2220 is a specialized 220VAC power supply module engineered for high performance combustion environments. Designed to interface with Fireye 25SU3 2000 and 25SU3 2100 amplifiers, this 19 inch rack mounted unit provides the stable voltage necessary for industrial grade ultraviolet flame scanners. It is essential for systems utilizing 45UV5 series scanners and RM1 RM2 relay modules, ensuring consistent signal processing and flame