3 Warranty, guarantee, liability
4.7 Functional components
vamp
air
K 08 and K 10
The fan
2
sucks the ambient air (outside air) through
the evaporator
3
and blows it out through the sound-
proofing slats
1
.
The condensate formed during defrosting of the eva-
porator is discharged through the outlet
8
.
Abb. 2-5
1 Soundproofing slats
2 Fan
3 Evaporators
4 Intake grille
5 Terminal area (electrical connection terminals)
6 Overtemperature reset (OTR)
[1]
7 Outside temperature sensor
8 Condensate drain
[1] Only when using electric heating element (optional accessory)
4.8 Principle of operation
The function of a heat pump is similar to that of a ref-
rigerator from a technical standpoint, but reversed.
The refrigerator extracts heat from the food to be coo-
led and releases it to the room air.
The heat pump
vamp
air
withdraws heat from the out-
side air and delivers it to the heating system.
Four processes are decisive in the cooling circuit of
the heat pump:
Evaporation
The evaporator
2
takes the circulating refrigerant
energy from air and changes its state from liquid to
gaseous.
Compression
In an electrically driven scroll compressor
3
, the
gaseous refrigerant is heated by compression.
Liquefaction (condensation)
The absorbed thermal energy is delivered to the hea-
ting system. The gaseous refrigerant is cooled in the
condenser (plate heat exchanger) and liquefied again
4
.
Expansion
The pressure of the liquid refrigerant is reduced, resul-
ting in partial evaporation. The result is a mixture of
liquid and gaseous refrigerant (= wet steam). The ref-
rigerant cools down.
1 Energy from outside air
2 Evaporators
3 Scroll compressor
4 Condenser
5 Discharge of heating heat
6 Expansion valve
7 Economizer-heat exchanger (for Enhanced
Vaporized Injection)
8 Enhanced Vaporized Injection
4.9 Innovative technologies
Inverter technology
The scroll compressor not only works in on/off mode,
but is operated with output control (modulating, accor-
ding to the current power requirement).
Advantage:
–
Precise power adjustment.
–
Increased efficiency through reduced pulsing.
–
Quieter operation on average due to reduced
speed in the partial load range.
–
Reduction of the power of secondary drives (fan,
primary circuit pump).
Operation manual
vampair
7
