Trane RTHD series chiller Control boards and devices (LLIDS) connections explained (Part 1)

Trane RTHD series chiller Control boards and devices (low level intelligent devises) connections and locations of the boards are explained in details (Part 1) part 2 will be coming soon, Following boards are explained, Power supply Module Compressor wye delta starter Starter Module (1A3) Dual High Voltage Binary Input (1A4) high pressure switch Dual Triac Output Module (1A5) Operates load / unload solenoids Dual Triac Output Module (1A6) Operates Gas pump drain and fill solenoid valves Dual High Voltage Binary Input 1A7 Monitor water flow switch and pump interlock Dual Relay Output Module (1A8) Ice building status Dual Relay Output Module (1A9) start chilled and cooling water pump Quad Relay Output Module (1A10) Alarms and status relay output Thanks for watching Please do subscribe us ‪@UATechnicalSolutions‬