There are finished 2 stages:

Stage 1. Reconstruction of the comfortable air conditioning system of the “Marmurovy” restaurant for 1,600 seats. As part of the first stage, the cooling system based on a heat pump with a cooling capacity of 960 kW was restored, and the central air conditioner with an air capacity of 80,000 m3/h serving the restaurant was modernized.

Stage 2. A system of heat utilization from a working heat pump for the needs of hot water supply of the hotel complex has been implemented. The thermal power of the system is 1320 kW.