When performing an ICP furnace repair

making it suitable for gravity-fed or low-pressure systems

and 1/2" bore specs

the R18 resistor can be cut to enable a continuous heating-speed blower

Common causes include a dirty blower wheel

Ranco ETC-212100-000 Control Freon When performing an ICP furnaceThe Ranco ETC 212100 000 is an industrial grade two stage digital temperature control designed for precise thermal management in commercial refrigeration and HVAC systems. Built for 24V AC low voltage applications, this microprocessor based unit features a wide setpoint range from 30F to 220F, making it a versatile choice for everything from walk in freezers to space heating. The 0 10V analog output provides a linear voltage signal proportional to the