Lochinvar TST20038 High Limit SensorOutlet Water Temp. Sensor High Limit ensures essential safety protection for Lochinvar boiler systems. Designed for the Lochinvar TST20038, this high limit sensor continuously monitors outlet water temperature to prevent overheating and protect critical boiler components. As a dedicated water temperature sensor, it integrates with existing controls to provide a rapid response to temperature spikes. This reliable high limit switch supports temperature

this valve delivers reliable performance across a wide range of industrial applications

with an emergency exposure limit of 2

horizontal/upright mounting

The 4–20 mA control signal provides smooth

Media compatibility: air

Armstrong R76734700 Transformer delivers reliable 208/240 Volt

Easy installation with standard terminal connections—no specialized tools required

Ideal for air handlers

Its rugged construction ensures reliable operation across the typical temperature and duty cycles found in residential and light commercial cooling equipment

easy-to-service temperature control solutions that simplify maintenance and extend equipment life

For installation and performance

this contactor provides dependable