TKW-FCR230_4-pipe heating and Cooling TKW 230V~ N L L N Yx Y1 Y2 Y3 Y4 L1 L1 N1 N1 P15V +10 A+ -2 AP+ PX2 FCR230 40 41 42 43 44 50 51 52 53 54 10 11 12 13 20 21 22 30 31 32 33 VPTK Cool VPTK Heat 20220406