Technical contractors rely on the AFS-305 to maintain static pressure monitoring standards and ensure system compliance across demanding ventilation applications

Rotation is determined by looking at the wheel from the bore/hub side

clean the Q347A ignition electrode and check for proper gas pressure

the C-163 ensures a leak-proof fit for systems ranging from 3/4 to 5 tons

or SPDT switching unit

Johnson Controls P70MA-2 Pressure Control Els PW 17895 Technical contractors rely on theThe Johnson Controls P70MA 2 Pressure Control is a heavy duty dual pressure switch engineered specifically for ammonia refrigeration systems (R 717). This SPST switching control integrates both high and low side protection into a single, ruggedized all steel enclosure, meeting the demands of commercial and industrial ammonia plants. The low pressure side features a wide adjustment range from 20" Wc to 100 psi with a tunable 7 psi to 50 psi