Specifications

System description 4
Principle of heat pump
A heat pump can exploit the ener gy contained in natural heat sour ces. Or , to put it dif fer ently , the heat
pump ”collects” heat ener gy fr om the heat sour ce. This makes the heat pump a very environmentally friendly and
economically sound alternative for space heating.
a.
b
The
Outdoor unit is used as the
heat pump’ s evaporator . Here the heat ener gy of the Outdoor Unit causes
the
r efrigerant, cir culating thr ough the evapo rator , to boil and turn into a gas – it evaporates.
c
The r efrigerant, having absorbed heat ener gy , is cir culated to the compr essor wher e pr essur e and temperatur e
ar e raised.
d
The r efrigerant continues to the condenser . When condensing, it r eleases heat ener gy to the heat carrier ,
cir
culating thr ough the condenser . The temperatur e of the r efrigerant sinks, and it r eturns to its liquid state.
e
The heat ener gy r eleased is carried by the heating cir cuit to water heater and radiator or floor heating systems.
At last the r efrigerant is led thr ough the expansion valve, wher e its pr essur e is r educed, and then con tinues to
the
evaporator
.
The pr ocess is r estar ted.
The heat
pump has two separate liquid circuits
Refrigerant circui t
– cir culating inside the heat pump. Thr ough evaporation, compr ession and condensation it
absorbs ener gy fr om the outdoor unit and r ele ases it to the heat carrier . The r efrigerant is chlorine-fr ee.
Heating circuit – water transporting heat ener gy to the heating system (radia tors/floor coils) and the water
heater .
Expantion valve/
pressure drop
Refrigerant
Condenser
Compressor/
pressure increase
Evaporator
Heating Circuit
Refrigerant Circuit
Fan