minimizing the risk of clogging

Does this board require any programming or field configuration

The unit utilizes sequencers for better temperature control and staging

water pooling at the base of the air handler

Designed for direct replacement of older 1021573 series boards

Trane VAL19939 TXV 319848-301 minimizing the risk of cloggingWhen high side pressure regulation is non negotiable for system stability, the Trane VAL19939 stands as the reliable 3 ton thermal expansion valve for R410A refrigerant applications. Designed for heavy duty HVAC replacement parts service, this TXV for air conditioners and heat pumps features a 3 8 inch ODF inlet and a 1 2 inch ODF outlet to ensure a clean, leak free braze. As an OEM Trane expansion valve, it is engineered to maintain precise superheat