Heat recovery

The energy released during the cooling process is supplied to the water by the Lister-heat recovery system via a heat exchanger. If the water temperature of about 55-60 ° C is reached, a pressure switch will switch the cooling system to normal operation. It is guaranteed that the cooling system continues to operate under normal conditions.

The amount of hot water and the heat recovery basically depend on the quantity of milk. From 100 liters of milk to be cooled from about 35 ° C. to 4 ° C. about 70 liters of water can be heated from about 12 ° C to 55 ° C. The heated water can be used to clean the milking machine, the milk cooling tank, to heat the milk for calves, as well as for kitchen and bathroom.

If desired, the heat recovery system can be fitted with an additional heating of 2kW / 230V or 4kW / 400V. This additional heating is used to bridge periods of low milk or reheat the existing hot water from about 55-60 ° C up to 80 ° C.

Type: WRG separate design C

Boiler capacity [litres]	Diameter [mm]	Height [mm]
100	560	1040
150	660	1040
200	660	1280
300	660	1800
400	800	1500
500	800	1800
Larger boilers on request

Type:

The WRG, design separately "C" is intended for retrofitting of existing cooling systems.
Inner boiler for all models of stainless steel (1.4571)
Outer panelling:
"C" = Plastic case
The WRG is operated without a sacrificial anode. Nevertheless no corrosion occurs in the boilers. This means no maintenance required for a long life.
Internal copper-fin tube-heat exchanger
Temperature display

Type: WRG with external plate heat exchanger

for compact and separate storage

Compact solutions extend the scope of use.

	Type	Power, cooling unit [PS]
	LPT 10	1.7 - 2.7
	LPT 20	3.5 - 4.5
	LPT 30	6.3 - 8.0
	LPT 40	9.0 - 12.0
	LPT 50	14.0

Type:

After a short running time of the cooling unit (approx 8 min.) hot water of about 55 ° C is already available
The water in the boiler is stacked from top to bottom, without any mixing of hot and cold water. The discharged water always has a constant temperature.
Also for retrofitting of milk cooling systems and WRG's of all makes.

Technology: