LAARS LT Premium Water Heater VIdeo and Programming of Recirculation operation in I/O manual
LAARS LT Premium Water Heater VIdeo and Programming of Recirculation operation in I/O manual
LAARS LT Premium Water Heater Video
https://www.laars.com/videos/lt-series-water-heater-recirc-model
LAARS LT Premium Water Heater Recirculation Programming Instructions are on pages 60-66 of the LT199NRX1 I/O Manual :
See manual here -
2192B_LT_Series_Manual.pdf