DIN EN 16905-5:2026-05
Gas-fired endothermic engine driven heat pumps - Part 5: Calculation of seasonal performances in heating and cooling mode; German and English version prEN 16905-5:2026 / Note: Date of issue 2026-04-10*Intended as replacement for DIN EN 16905-5 (2023-02).
| Fecha edición: |
2026-05-01
En Vigor
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| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | This part of EN 16905 specifies the calculation of the seasonal performance factor for gas-fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat recovery, to be used outdoors. This document only applies to appliances with a maximum heat input (based on net calorific value) not exceeding 70 kW at standard rating conditions. This document only applies to appliances under categories I2H, I2E, I2Er, I2R, I2E(S)B, I2L, I2LL, I2ELL, I2E(R)B, I2ESi, I2E(R), I3P, I3B, I3B/P, II2H3+, II2Er3+, II2H3B/P, II2L3B/P, II2E3B/P, II2ELL3B/P, II2L3P, II2H3P, II2E3P and II2Er3P according to EN 437:2021. This document only applies to appliances having: a) gas fired endothermic engines under the control of fully automatic control systems; b) closed system refrigerant circuits in which the refrigerant does not come into direct contact with the fluid to be cooled or heated; c) where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not exceed 105 °C during normal operation; d) where the maximum operating pressure in the: 1) heating water circuit (if installed) does not exceed 6 bar, 2) domestic hot water circuit (if installed) does not exceed 10 bar. This document applies to GEHP appliances only when used for space heating or space cooling or for refrigeration, with or without heat recovery. This document is applicable to GEHP appliances that are intended to be type tested. Requirements for GEHP appliances that are not type tested would need to be subject to further consideration. |
| Keywords: | Air conditioner|Characteristics|Cooling|Efficiency|Endothermic reactions|Evaluations|Gas appliances|Gas technology|Gaseous fuels|Gas-fired|Heat pumps|Heating|Heating equipment|Heating process|Mathematical calculations|Motor pumps|Motors|Performance|Sorption appliances|Specification (approval)|Testing|Testing conditions|Thermal environment systems|Waste heat recovery |
| ICS: | 27.080 - Bombas de calor |
| CTN: |
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