ClimateMaster 39B0017N01 Water Switch 326010-701 This Lennox 47L19 model replaces

This Lennox 47L19 model replaces several older part numbers

Always verify the specific model number on the rating plate to confirm a 100% matched system

Featuring a dual automatic operator configuration

the A19ADB-29 features an Open High switch action with a manual reset lockout

ClimateMaster 39B0017N01 Water Switch 326010-701 This Lennox 47L19 model replacesThe ClimateMaster 39B0017N01 High Pressure Water Switch is a critical safety component engineered for water source heat pumps and HVAC pressure monitoring. This OEM water switch is designed to protect the refrigeration circuit by interrupting operation when water side pressure exceeds the 145 PSI maximum threshold. As a veteran grade replacement part, it ensures the integrity of the coaxial heat exchanger and prevents equipment damage due to excessive