Neptronic SP3035 Limit Switch 321894-709 and contains no shut-off valves

and contains no shut-off valves or obstructions

Use a standard scouring pad to clean the 316 stainless steel probe tip if mineral deposits are present

which is essential during compressor service or system evacuations

containing the service valve

this OEM-equivalent part ensures the air handler maintains peak efficiency

Neptronic SP3035 Limit Switch 321894-709 and contains no shut-off valvesThe Neptronic SP3035 Limit Switch provides critical over temperature protection for commercial and residential HVAC systems, specifically designed as a L220 high limit safety device. Featuring a manual reset (M R) mechanism, this thermal cut out ensures that power to the heating elements is interrupted if the duct or cabinet temperature exceeds the 220F threshold. This prevents equipment burnout and enhances facility safety by requiring a physical