Installation guide Electronic controller Type EKC 347 Identification Dimensions Principle Connection Necessary connections Terminals: 25-26 Supply voltage 24 V a.c. 15-16 Signal from level transmitter type AKS 4100/4100U or 14-16 Signal from transmitter 0-10V 23-24 Expansion valve type AKV or AKVA or 2-5 Expansion valve type: ICM with ICAD