Ashcroft 251490A02L-0/30WC Gauge L99H008 or an open circuit reading

or an open circuit reading between the common and hot leads during a resistance test

Always verify the horsepower (1/2 HP) and voltage (115V) on your existing motor's nameplate before installation

This component is essential for modern air conditioning and refrigeration service calls where short cycle protection is required to ensure long-term compressor reliability and electrical stability

Common Questions Is the HH22QC074 compatible with older HH22UC034 systems

Exact OEM Fit: Features standard 3/8" x 1/2" ODF connections and a 1/4" SAE flare equalizer for streamlined installation in Trane equipment

Ashcroft 251490A02L-0/30WC Gauge L99H008 or an open circuit readingThe Ashcroft 251490A02L 0 30WC Gauge is a high precision low pressure diaphragm gauge engineered for applications requiring superior sensitivity and reliability. Featuring a 2 1 2" dial size and a robust 1 4" NPT bottom mount connection, this instrument is specifically designed to measure pressure ranges from 0 30" WC (inches of water column). Its core utilizes an ultra responsive beryllium copper diaphragm and a durable brass tube and socket assembly