Weil McLain 633-900-130 Residential Thermostat R-410A Lead-Free Reliability: Constructed from cast

Lead-Free Reliability: Constructed from cast copper silicon alloy to meet all potable water installation requirements

Which way should the blades curve for a clockwise rotation wheel

you must verify based on your valve housing

such as the RHS048

check for a closed circuit (continuity) at room temperature

Weil McLain 633-900-130 Residential Thermostat R-410A Lead-Free Reliability: Constructed from castWhen you're servicing or installing Weil McLain Plus or Gold Plus series indirect fired water heaters, maintaining thermal accuracy is non negotiable for system longevity and prevents short cycling. The Weil McLain 633 900 130 Residential Thermostat kit is an essential OEM replacement part designed for a precise operating range of 90F to 160F. This aquastat control integrates directly with factory configured drywells, ensuring the sensor bulb makes