ITS Telecom ITS-11.8HD, Руководство по эксплуатации продукта

Страница: 7 / 14

ITS Heat Pumps
Domestic Heat Pump Product Manual
Page 7 of 14
Below is a graph showing the measured hot water draw-off temperature values of a standard 150L
electrical geyser. The 3 different sets of measurements were done on the same 150L geyser but
with 3 different heating methods. The graph called “Standard HP Integration” is the data with a
heat pump connected in the standard way that most other companies are doing it. The graph
called “Electrical element geyser” is the data with no heat pump connected and the standard
electrical element doing the heating. The graph called “ITS HP integration” is the data with the
heat pump connected using the Integration technique developed by ITS.
In all three cases above the geyser was heated to 55 °C and then the hot water from the geyser
was used at 15L/min while measuring the temperature of the water. On the graph it can clearly
be seen that when using the standard way of integrating the heat pump the temperature almost
immediately starts to drop as water is being used.
Practically, if for example the user was taking a shower, he would have to from time to time
adjust the taps to maintain the same temperature of water in the shower. Also it can be seen
that after about 80L are used the water gets to the temperature where the client will consider
the water to be too cold.
The graph also shows that with the electrical element heated geyser almost the whole 150L is
available for use. This is what you would expect form and SABS approved geyser. Then when the
ITS heat pump integration is used with an ITS heat pump, the graph shows the geyser has got
even more hot water available than what the electrically heated geyser.
CONCLUSION:
From the above graph it is clear to see that using the ITS heat pump integration technique
provides the user with the most usable hot water and therefore it is also easy to understand why
many people have in the last years moved over to ITS heat pumps.