General information is identified by the adjacent symbol. f Read these texts carefully. 13.1 Dimensions and connections ��������������������������������� 14 13.2 Hydraulic diagram ���������������������������������������������� 15 13.3 Wiring diagram HSBB 2.1 ������������������������������������� 16 Symbol Meaning 13.4 Details on energy consumption ������������������������������ 17 Material losses 13.5 Data table ��������������������������������������������������������...
Angled panels are fitted to the back of the appliance. These can be used as transport aids. ≥500 ≥100 f Maintain the minimum clearances to ensure trouble-free op- eration of the appliance and facilitate maintenance work. www.stiebel-eltron.com HSBB 2.1 |...
When calculating the pressure drops, take account of the f Level the appliance horizontally by adjusting the feet. heat pump flow and return lines. These pressure drops must be covered by the available pressure differential. | HSBB 2.1 www.stiebel-eltron.com...
The products of corrosion, i.e. rusty sludge, can settle inside the heat pump condenser and can result in a lower output through reduction of cross-section, or in a heat pump shutdown. 1 Pipes carrying heating water 2 Fitted safety assembly 3 Pressure hoses www.stiebel-eltron.com HSBB 2.1 |...
The blow-off aperture of the safety valve must remain open towards the atmosphere. - Fit the blow-off line of the safety assembly with a constant slope. - Observe the information in the installation instructions of the safety assembly. | HSBB 2.1 www.stiebel-eltron.com...
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Route all connecting cables and sensor leads through the gap in the centre of the appliance so they reach as far as the PCB. f Connect the connecting cables and sensor leads as detailed below. www.stiebel-eltron.com HSBB 2.1 |...
Collector sensor for solar connection T(2.WE) Second heat source T(A) Outside temperature sensor T(MK) Mixer circuit temperature sensor Fernb.1 Remote control 1 (FE 7) Fernb.3 Remote control 3 (FE 7) Earth | HSBB 2.1 www.stiebel-eltron.com...
3 Cap shut-off valve f Fill the heating system via the drain & fill valve. f After filling the heating system, check the cap shut-off valve at the diaphragm expansion vessel for leaks. f Vent the pipework. www.stiebel-eltron.com HSBB 2.1 |...
Material losses If the heat pump and frost protection are completely switched off, drain the system on the water side. Information on draining the DHW cylinder can be found in chapter “Maintenance”. | HSBB 2.1 www.stiebel-eltron.com...
Clean the DHW cylinder with a hose that you guide through the inspection port. f Check for tightness when fitting the pressure switch. f Draw the loosened limescale deposits out through the in- spection port. www.stiebel-eltron.com HSBB 2.1 |...
(i.e. no elbows or bends) Pressure drop of each elbow or bend Connection dimensions Safety assembly connection Expansion valve end connection Expansion vessel connection, male, BSP G 1 A Tundish inlet connection Tundish outlet connection www.stiebel-eltron.com HSBB 2.1 |...
INSTALLATION Specification 13.3 Wiring diagram HSBB 2.1 X 10 > p Heat pump manager WPM II Plug, pulse input WPM II Temperature sensor heat pump flow 10-pole plug WPM II Temperature sensor heat pump return Plug, HP temperature WPM II Temperature sensor DHW...
Total available external pressure differential Heat loss kW/24h 1,78 Heating flow rate (min.) m³/h Max. operating pressure Permissible operating pressure - heating circuit Safety assembly, max. supply pressure Max. operating temperature °C Expansion vessel - pre-charge pressure 0,35 www.stiebel-eltron.com HSBB 2.1 |...
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T&P valve, nominal dimension DN 15 Please note that the data for “available external pressure differential” is relative to the maximum pump rate and does not include pressure drops from the heat pump flow and return lines. | HSBB 2.1 www.stiebel-eltron.com...
This will not affect warranties issued by any importers. Environment and recycling We would ask you to help protect the environment. After use, dispose of the various materials in accordance with national regulations. www.stiebel-eltron.com HSBB 2.1 |...
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