The Heil Quaker ICP 1178963 Defrost Temperature Sensor is a critical L80F-50 limit switch designed for precision thermal management in residential and light commercial heat pump systems

Durable ball bearing construction minimizes vibrational noise and mechanical wear

OEM Compatibility: Exact drop-in replacement for Lennox burner rollout switches in commercial and residential furnace models

Direct OEM Fit: Specifically programmed for ICP 1187970 compatibility

ensuring efficient isolation for energy savings in normally closed configurations

Siemens Building Technology 599-02065 Valve R-448A The Heil Quaker ICP 1178963The Siemens 599 02065 is a high performance 1 2" NPT 3 way mixing valve from the Powermite MT Series, specifically engineered for precision control in terminal unit applications. Featuring a 0. 63 Cv and a rugged forged brass body with brass trim, this globe valve is built to handle hot or chilled water and glycol solutions up to 50% concentration. This ANSI Class 250 rated valve is a staple for contractors managing hydronic systems, offering a linear