Danfoss – 8
VUBMF102
2 .4
Water heater
Danfoss DHP-AL is supplied with an integrated 180 litre water heater with a tank outside the
water heater that contains the anti-freeze.
Figure 3: Water heater in DHP-AL .
Using a regular time interval, the water in the water heater is heated to 60°C to prevent the
build up of bacteria (legionella function). The factory set time interval is seven days.
Hot water production is prioritised ahead of heat production, i.e. no heat is produced if there
is a hot water demand at the same time.
The temperature of the hot water cannot be adjusted. Hot water production does not cease
at a determined temperature but when the compressor’s operating pressure switch reaches
its maximum operating pressure, which corresponds to a hot water temperature of approxi-
mately 50-55°C.
In the control computer’s TEMPERATURE menu, a number of measured and calculated tem-
peratures for the hot water and supply are displayed. There you can see the current hot water
temperature and the temperature of the supply pipe during heating and hot water produc-
tion. The temperature of the supply pipe often exceeds the maximum permitted hot water
temperature, but usually during hot water production.
Position
Name
1
Hot water line
2
Cold water
3
Defrosting tank
4
Water heater
5
TWS coil
1
2
3
4
5
Summary of Contents for DHP-AL
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