Condenser
In the condenser, the refrigerant releases the recovered energy to the heating water.
Heating circuit pump
The high efficiency pump pumps water through the heating circuit during heating
operation.
Domestic water feed pump
The 3 stage domestic water feed pump provides water to top up the water tank.
Non return valves
A non-return valve above the pumps prevents incorrect circulation in the pipework
system.
Sludge separator
The sludge separator filters impurities from the heating water and thus protects the
condenser.
Flow switch
The flow switch monitors the minimum flow in the water circuit.
Electric heating
If the external temperature is low or if there is a fault, the electric heating can support
the heat pump.
Installation and operating instruction
Hydraulic unit WWP L 7 ... L 15
3 Product description
83279602 • 1/2014-05 • La
12-59
