The P400BD-1 is a single point differential switch typically used in conjunction with a separate electronic or mechanical time delay control that may handle the reset function

this Honeywell SPDT limit switch delivers the precision required for tight tolerance electrical controls

such as the MP8000 series

Advanced Diagnostics: Features an onboard LED for furnace error code troubleshooting to reduce diagnostic time

or pressure sensing

Trane VAL7632 TXV 318820-201 The P400BD-1 is a singleFor service professionals maintaining legacy systems, the Trane VAL07632 thermostatic expansion valve is a critical direct replacement part designed for precision refrigerant metering. This 2. 5 ton TXV is engineered specifically for R 22 refrigerant, providing the consistent superheat control necessary to protect high value reciprocating and scroll compressors in residential and light commercial air handlers. Featuring a 3 8" ODF inlet and a 1 2" ODF