For unconditioned or outdoor environments

Key Benefits for Technicians: Direct OEM Compatibility: Serves as the official replacement for part number 626520R

This enclosed relay features two SPDT (Single Pole Double Throw) contacts

Durable Construction: High-impact white plastic housing provides a professional finish and protects internal bimetal elements

effectively breaking the circuit to prevent overheating

Johnson Controls A-4000-144 Relief Valve Els PW 17895 For unconditioned or outdoor environmentsThe Johnson Controls A 4000 144 is a professional grade safety relief valve designed specifically for pneumatic control systems and air compressor accessories. Featuring a 1 4" NPT male connection, this pop type valve is factory set to activate at 25 PSIG, providing a critical mechanical failsafe against overpressurization in the supply line. The robust brass body construction ensures durability and corrosion resistance, essential for maintaining the