Heating with air and geothermal heat - Viessmann

28/29Two-stage Vitocal 300-G (master/slave) as a brine/water orwater/water heat pumpModular solution in master/slaveoperationWith three output sizes, as master or master/slave version, various combinations can berealised, which can all be precisely matchedto the required heat demand. The availabilityof different versions and the ability to sizeaccording to demand enables systems to beconfigured so that runtimes are optimised,ensuring economical operation. The mastermodule regulates the slave module. Bycombining different output sizes, users havethe option of matching the environmentallyresponsible heating system to their specificheat demand as efficiently as possible byutilising different modules.Take advantage of these benefits:• Brine/water heat pumpHeating output, single stage: 21.2 to 42.8 kW; two-stage: 42.4 to 85.6 kW;maximum 342.4 kW (as cascade)• Water/water heat pumpHeating output, single stage: 28.1 to 58.9 kW; two-stage: 56.2 to 117.8 kW;maximum 589 kW (as cascade)• Low operating costs through high coefficients of performance: COP to EN 14511up to 4.8 (brine 0 °C/water 35 °C)• Flow temperatures up to 60 °C• Mono mode operation for DHW and central heating• Low running costs with the highest level of efficiency at any operating pointthrough the innovative RCD (Refrigerant Cycle Diagnostic) system withelectronic expansion valve (EEV)• Quiet, with low vibrations, thanks to sound-optimised appliance design; soundpower below or equal to 44 dB(A)• With integral energy statement• Vitotronic 200 heat pump control unit with user prompts for weathercompensatedheating operation• Easier handling through small and light modulesFor specification, see page 73