Danfoss – 7VUBMA102
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4
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5
2
5 The heat transfer fluid circuit transports the heat energy out to the water heater, radiator
or the under floor heating system, which heat up.
6 The refrigerant is then transported through the expansion valve where the pressure
drops and the refrigerant starts to boil and then the process starts again.
2.2 Components
The Danfoss heat pump is a complete heat pump installation for heating and hot water. It has
the market’s first compressor developed solely for heat pumps. It has an integrated 180 litre
water heater and auxiliary heating. The water heater uses TWS, which stands for Tap Water
Stratificator, which is technology that results in more effective heat transfer and effective lay-
ering of the water in the water heater.
The Danfoss heat pump is equipped with control equipment, which is controlled via a control
panel.
Heat enters the house via a water borne heating system, a low temperature system. The heat
pump supplies as much of the heat demand as possible before auxiliary heating is engaged
and assists.
The Danfoss heat pump unit consists of five basic units:
1 Heat pump unit
• Scroll compressor
• Stainless steel heat exchanger
• Circulation pumps for brine and heating systems
• Valves and safety equipment for cooling systems and
corresponding electrical components.
2 Water heater
• 180 litres
• Internal anti-corrosion protection with copper or stain-
less steel
• It does not have an anode, which makes it maintenance free
3 Exchange valve
• The heated water either passes through to the heating
system or to the water heater depending on whether
heating or hot water is to be produced
4 Auxiliary heat
• 9 kW electric heating element (DHP-A: 15 kW electric
heating element)
• Electric heating element control in a maximum of three
steps (DHP-A: maximum of five steps)
• Installed on the heating system’s supply pipe
• Covers the demand of extra energy if the heat pump’s
capacity is exceeded
• Automatically connected in the heat pump unit if oper-
ating mode AUTO is selected.
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