{"id":1135,"date":"2022-02-17T15:27:12","date_gmt":"2022-02-17T15:27:12","guid":{"rendered":"https:\/\/heatpumpingtechnologies.org\/annex50\/?page_id=1135"},"modified":"2022-04-07T12:36:13","modified_gmt":"2022-04-07T12:36:13","slug":"solution-1-4","status":"publish","type":"page","link":"https:\/\/heatpumpingtechnologies.org\/annex50\/solution-1-4\/","title":{"rendered":"1.4 Centralized Heat Pump System for the Whole Building"},"content":{"rendered":"
\n

HEAT PUMP FOR DHW, OTHER DEVICE FOR HEATING<\/strong><\/strong><\/p>\n<\/div>\n\n

\n
\n
\n
\"\"<\/figure><\/div>\n<\/div><\/div>\n\n\n\n
\n
\"\"<\/figure><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n
\n
\n
\n

Main characteristic of the concept<\/strong><\/h4>\n<\/div>\n\n
\n

One heat pump system for DHW, separate heat generator (fossil, biomass, electric, \u2026) for space heating.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Heat distribution and temperatures levels<\/strong><\/h4>\n<\/div>\n\n
\n

Separate production of space heating and DHW. Temperature level of the space heating system is not relevant for the heat pump.\u00a0\u00a0<\/p>\n<\/div>\n\n

\n

\u00a0\u00a0<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

\n
\n
\n

Size of building, number of apartments<\/strong><\/h4>\n<\/div>\n\n
\n

This solution is suitable for all sizes of buildings with the preference for smaller ones. Using specific heat source or refrigerant (for example CO2<\/sub>) may be an indicator to select this solution.<\/p>\n<\/div><\/div>\n\n\n\n

\n

DHW and storage characteristic<\/strong><\/h4>\n<\/div>\n\n
\n

Heat pump provides DHW only. Consequently, appropriate high temperature level is necessary. Storage tanks are necessary for providing of DHW by the heat pump. In cold climates a two-stage HP might be necessary.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

\n
\n
\n

Energy standard, insulation level <\/strong><\/h4>\n<\/div>\n\n
\n

This solution is generally not to be recommended for new buildings due to use of fossil energy sources. Using a heat pump for DHW can only be practicable by retrofitting if existing system consists of two heat generators and the investor wants to exchange only one.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Complexity of installation<\/strong><\/h4>\n<\/div>\n\n
\n

In case of retrofitting, exchanging one mode at a time may reduce the complexity of the planned construction work.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

\n
\n
\n

Heat Sources<\/strong><\/h4>\n<\/div>\n\n
\n

All heat sources generally possible. For this solution some less frequently used heat sources like exhaust air or unglazed solar collectors can be used.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Specific issues of the concept<\/strong><\/h4>\n<\/div>\n\n
\n

In case of retrofitting this solution allows exchange of only one heat generator and adopt a complete \u201cheat pump only\u201d solution at a second step.\u00a0<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n

\n
\n
\n

Positive aspects<\/strong><\/p>\n<\/div>\n\n

\n