65NT_EXP02_E100

The high temperature heat pump draws thermal power from the medium temperature grid and the electrical grid and injects the energy at higher temperature level into the high temperature grid.

The high-temperature heat pump provides heat for the high temperature storage tanks. The high-temperature heat pump is installed in the Nest building in room A09 in the basement. The high temperature heat pump is connected to the medium temperature grid on the evaporator side and to the high temperature grid on the condenser side. The heat pump has two output levels: 50% and 100%.

Facts & Figures

• Type: WP-WW-2CES-4Y-2-1-S-P28
• Manufacturer: Viessmann
• Refrigerants: R1234ze
• Refrigerant quantity approx: 10 kg
• Outlet temperature: max. 90 °C
• Evaporator temperature: min. 18 °C
• Number of compressors: 2
• Heating capacity: max. 28 kW
• Power regulation: 2 stages 50 % / 100 %
• COP at 35 °C / 60 °C: 4.5
• COP at 35 °C / 88 °C: 2.5
• Power consumption: 2 x 3.1 kW
• Nominal voltage: 3 x 400 V
• Operating current: 2 x 5.9 A
• Frequency: 50 Hz
• Speed: 1450 U/min
• Max starting current per compressor: 45 A
• Start-up device: Soft starter

Overview

Energy measurement

Overview

internal

Data points

Attachments