Twin-SANCO2 Wiring

harvest wiring harness connections inside the signal box of the primary sanco2 heat pump follow the diagram for the single sanco2 wiring docid\ ugs6dumcm8ulbjlgxm0yy setup, except for the 20 a ct current transducer inside the electrical subpanel box install the 20a ct on either the l1 or l2 incoming 30a power wires within the subpanel this will require extending the length of the ct wires which can be done with 18/2 thermostat wire install current sensing switch (ribxga relay) within electrical subpanel on one 15a power wire powering the primary sanco2 heat pump cut the dry contact loop (white wire) inside the signal box of the secondary heat pump, and connect up to the current sensing switch this will require extending the length of the current sensing switch, which can be done with 18/2 thermostat wire connect the thermistor load assembly (7 5k ohm resistor) to the “temperature” terminals within the secondary sanco2's signal box