Laars Heating Systems R0457501 HSI 321142-301 The Carrier EA36YP289 Valve Assembly

The Carrier EA36YP289 Valve Assembly is a high-performance thermostatic expansion valve (TXV) designed to maintain the exact superheat required by the evaporator coil under varying thermal loads

technicians should verify the unit’s cabinet width and coil orientation to ensure a proper seal and slope

Technicians should ensure the motor shaft is clean and the set screw or nut is torqued to manufacturer specifications

If you are converting from a standard permanent split capacitor motor

Laars Heating Systems R0457501 HSI 321142-301 The Carrier EA36YP289 Valve AssemblyThe Laars Heating Systems R0457501 HSI is a high performance silicon carbide hot surface ignitor engineered specifically for Jandy Legacy LRZE and Teledyne Laars pool heaters. For technicians servicing LRZ models 125, 175, 250, 325, and 400, this OEM component is the standard for restoring reliable ignition sequences. Unlike generic alternatives, this pool heater ignitor is designed to handle the high temperature environment of the burner assembly