●More environmentally friendly, using R410A (low temperature grade) and R134a/R515B (high temperature grade) environmentally friendly refrigerants, zero ODP value, non-toxic and non-flammable, environmentally friendly. Among them, the GWP value of R134a refrigerant is 1430, and R515B is a new generation of environmentally friendly refrigerants with a GWP of only 299, which has a lower global warming potential than the former.

● Lower ambient temperature, using advanced two-stage cascade technology to effectively reduce the system compression ratio under low ambient temperature conditions, and strong heating in extremely cold weather of -35℃.

● Higher water temperature, using international first-class brand high-temperature dedicated scroll compressor, R134a high-temperature compressor evaporation temperature can reach up to 40℃, condensation temperature can reach up to 85℃, and the unit can achieve a constant water outlet of 80℃ throughout the year; R515B high-temperature compressor evaporation temperature can reach up to 50℃, condensation temperature can reach up to 100℃, and the unit can achieve a constant water outlet of 95℃ throughout the year.

● Wider application, cascade heat pump is suitable for -35~45℃ ambient temperature and 40-80℃ outlet water (high temperature grade is R134a) and 40-95℃ outlet water (high temperature grade is R515B), which can meet the hot water supply needs in extremely cold areas.