The design, installation and calculation of air source heat pump hot water engineering unit are explained in detail

The type of hot water use place is determined as the basis for dividing hot water use time and maximum daily water quota. If the hotel is generally a full-time water supply, the use time is 24h, the maximum daily water quota is generally 150L/ standard room. The bathroom is generally half-day water supply, the use time is 12h, and the maximum daily water quota is generally 100L/ person. According to the actual situation, the factory dormitory will have shift or full-time water supply, and the use time is 8 to 24 hours. The maximum daily water quota is generally 50L/ person. See 4.3.2 Calculation of Daily Hot water Consumption for details.

Understand the daily hot water consumption as a basis for system design. Confirm with the Distributor or Party A the daily hot water consumption or the daily maximum number of hot water users, the number of rooms used or the number of water points. For example, the number of hotel rooms, the occupancy rate, the daily peak number of people in the bathroom, the number of water points (such as the number of sprinklers, showers), the number of people staying in the factory or school dormitory. Daily hot water consumption is calculated according to the type of place used.

Confirm the area where the project is located: Understand the local meteorological parameters, especially the minimum water temperature, annual average water temperature and winter average temperature, according to the meteorological parameter table and cold water calculation temperature table (P21), as the basis for selecting the type and quantity of equipment and checking the reliability of equipment operation.

Clear building overview: building height, unit, water tank placement, whether to use backwater. As the basis for calculation of pump selection.

Learn about water and electricity: reserved water pipe caliber, power distribution capacity. If this point is not understood, it is necessary to indicate in the design data, the reserved diameter of the water pipe and the size of the power distribution.

Understand the specific requirements of Party A and consider their rationality.