EREBATM 17-21 Inverter Air-Cooled Liquid chillers & Reversible Air-to-Water Heat Pumps eleCtRiCaldata,eRebatm 17t-21t/17ht-21ht EREBATM 17 21 Nominal power supply V-ph-Hz 400-3+N-50 400-3+N-50 Voltage range V 360-440 360-440 Control circuit supply 24V AC via internal transformer Nominal unit current drawn (Un) * A 12,5 14,3 Maximum unit power input (Un) ** kW 10,8 12,4 Cos Phi unit at maximum power ** 0,93 0,93 Maximum unit current drawn (Un-10%)*** A 18,5 21,2 Maximum unit current drawn (Un) **** A 16,7 19,2 * Conditions equivalent to the standardised Eurovent conditions (evaporator water entering/leaving temperature = 12 °C/7 °C, outside air temperature = 35 °C). ** Power input, compressors and fans, at the unit operating limits (saturated suction temperature 15 °C, saturated condensing temperature 68.3 °C) and nominal voltage of 400 V (data given on the unit nameplate). *** Maximum unit operating current at maximum unit power input and at 360 V. **** Maximum unit operating current at maximum unit power input and at 400 V (values given on the unit nameplate). Fan motor electrical data: at Eurovent equivalent conditions and motor ambient air temperature of 50 °C at 400 V: 3.8 A, start-up current 20 A, power input 1.75 kW neweneRgyeFFiCienCymetRiC:sCop ■ Because buildings have a thermal load depending on outdoor air temperature The Seasonal Coefficient of Performance (SCOP) is a new Unlike its predecessor, the SCOP is representative of operation European parameter to evaluate the energy efficiency of heat during the heating season as it includes seasonal variations by pumps. It replaces the Coefficient of Performance (COP), defining several realistic measurement points. Together, these which measured the ratio of power consumed to powercontribute to classification in the correct energy efficiency produced in the heating mode on a single operating point. class. ■ SCOP versus COP efficiency (for heat pumps) TEMPERATURE OUTPUT (kW) AUXILIARY MODES (kWh) HOURS COP SCOP COP SCOP COP SCOP COP SCOP 1 temperature Several rating Full load Partial load No auxiliary power Includes consumption N/A Number of hours condition: 7°C temperatures: + Full load modes taken into auxiliary modes: occurring -10°C to 16°C consideration - Standby mode at each air (average climate) - Off mode temperature (bin - Thermostat off… hours) ■ SCOP Calculation ■ ŋs: seasonal primary energy efficiency SCOP is the ratio between annual heating demand and annual metrics: energy input over an entire heating season. In order to compare the energy efficiency of products using different sources of energy, such as boilers (gas, fuel) and electric heat pumps, the Ecodesign regulation introduces a new measurement expressed in primary energy: ŋs (eta s). ŋs = SCOP/2.5 x 100 - i** ANNUAL HEATING DEMAND SCOP = ** Air source heat pump i = 3 ANNUAL ENERGY INPUT* * Annual energy input: - Compressor running (SCOPon) - Compressor not running: thermostat OFF, standby, OFF mode & crankcase heater - Backup heater to supplement heat pump capacity CATALOGUE 2021 331 331