Title: Brukermanual for Refra varmepumpe.pdf
With the resumption of power supply contacts are closed and the controller includes a Micro-Tech compressor. When a three-phase voltage permissible value of the output relay contacts are closed and lights up "run light".If the output relay contacts are not closed, do the following checks: 1. Check phase to phase voltage L1-L2, L1-L3 and L2-L3. This value must match (with a tolerance of +10%) rated voltage. 2. In case of undervoltage or unbalance check power line and find out the cause of the problem. 3. If the voltage is in the acceptable range, then use fazoukazatel, check the connection of phases: A B C for the phases L1, L2 and L3, respectively.