Category：Hot water- Institution
Selected model:TONGYI Commercial air source heat pump
Description：TONGYI Commercial heat pump water heater, supply hot water for staffs in FAST.

Category：Hot water-Transportation(airport)
Selected model:TONGYI EVI Commercial air source heat pump
Description：TONGYI Commercial heat pump water heater, supply hot water for aircraft maintenance. Also supply hot water for China southern airline VIP bathroom. Providing hot water in low ambient temperature.

Category：Swimming Pool-Hotel
Selected model:TONGYI Commercial air source heat pump for swimming pool
Description：TONGYI Commercial heat pump for swimming pool for SOFITEL swimming pool heating and SPA

Category：Hot Water-Hotel
Selected model:TONGYI Commercial air source heat pump water heater
Description：TONGYI Commercial heat pump water heater for Sheraton hotel central hot water supply