The units in question are three heat pumps that we supplied to our Serbian distributor Energy Net at the beginning of 2019.
Model TETRIS 2A HP 57.6.
Each has a heating capacity of around 600 kW
5 units of Lambda Sky R7 33.4 CO - Cooling /R32
TETRIS 2 32.4 LN Low noise version EC fans Cond coil with anticorr.paint Power Supply 460V 3 ~ 60Hz
4x Datatech BTD UEDA 22.1 HH - 400V 3N ~ 50Hz 4x REM.COND.LMC3N1531 230/1/50 R410A KAV