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 - ...
*Important* information regarding the use of Tekmar 30x Zone Panels with Laars FT Boilers..... When utilizing a Tekmar 30x zone panel with Laars FT boilers when Tekmar is selected to control modulation signal , ALWAYS make sure that the dipswitch (#5 ...
FUSES for LAARS FT Circuit Boards FT140, FT 199-Combi and Heat Only . Photo below. There are two replaceable glass type fuses mounted on the circuit board. The uppermost (top fuse) is a 10 AMP /125 Volt fuse and is for the 120V circuitry (internal ...