| Term | Meaning | | ————————- | ————————————————————————————————————————————————————- | | AT | Outdoor temperature | | AW | Air Water: air-to-water | | A7 W35 | Outdoor temperature of 7 °C and flow temperature of 35 °C | | CAN-Bus | The outdoor unit and indoor unit are connected to each other via a communication cable, the CAN-BUS [24 V DC, Class III, safety extra-low voltage (SELV)]. | | COP | Coefficient of Performance: performance factor determined under laboratory conditions for various outdoor/flow temperature combinations, e.g. A7 W35 | | DHW | Domestic Hot Water: domestic hot water/service water | | Drucksollwert | Differential pressure at which the heating circuit pump PC1 is controlled | | EMS-Bus | Accessories are connected to the indoor unit via an EMS-BUS [15 V DC, Class III, safety extra-low voltage (SELV)] | | EVU-Sperrsignal | Blocking signal from the energy supply company (EVU) - no longer relevant | | FBH | Underfloor heating | | Endpunkt | The end point is the flow temperature reached at the design outdoor temperature (NAT). | | Fußpunkt | The base point is the flow temperature reached at an outdoor air temperature of 20 °C. | | Gedämpfte Außentemperatur | Delayed and attenuated outdoor temperature depending on the building type setting (light, medium, heavy). This slows down the control of the flow temperature. | | Heizkreis | Water circuit between the indoor unit and radiators/underfloor heating | | HK 1 | Heating circuit 1 | | IDU | Indoor Unit = indoor unit | | JAZ | Seasonal performance factor: efficiency of the complete system at the installation site over an entire year | | Komfortpunkt | The comfort point enables the flow temperature to be increased during the transitional period in spring/autumn. | | K30 RF | Bosch WLAN gateway for connecting the heat pump to the app and wireless remote control and for remote maintenance | | K40 RF | Bosch WLAN gateway for connecting the heat pump to the app and wireless remote control, for remote maintenance and energy management (§14a EnWG) | | MAZ | Monthly performance factor: efficiency of the complete system at the installation site over an entire month | | ODU | Outdoor Unit = outdoor unit | | PC0 | Circulation pump for the primary circuit between the outdoor and indoor units | | PC1 | Circulation pump for the heating circuit | | Primärkreis | Water circuit between the outdoor and indoor units | | SG Ready | Control via Smart Grid to boost or block the heat pump | | TAZ | Daily performance factor: efficiency of the complete system at the installation site over an entire day | | TC0 | Temperature sensor for the primary circuit water at the indoor unit outlet (return) | | TC3 | Temperature sensor for the primary circuit water at the outdoor unit outlet (flow) | | TL2 | Temperature sensor for the outdoor air inlet at the evaporator | | TR5 | Temperature sensor for the suction gas at the compressor inlet | | T1 | Outdoor temperature sensor for controlling the flow temperature with outdoor temperature-controlled regulation | | UI 800 | Bosch control panel on the indoor unit | | WW | Domestic hot water/service water | | Zuheizer | Electric backup heater that supports heat pump operation when the bivalent temperature is undershot and during emergency operation. | 】【。