* Accessories marked with * must be connected via the "RK-EB001" communications expansion board.
The communications expansion board must be present when these accessories are to be used.
*1 Model numbers ending with -2**00 indicate models that include bypass piping in the chiller.
*2 The water tank cannot be directly connected.
*3 The Water Startup-Heater Kit requires it own single-phase 200 V power supply.