Water/water heat exchanger – QWT, WTI, SWT, SWT-T
01.07.2015
8
Safety
1.4 Sources of danger
The heat exchanger may be damaged.
If the max. operating pressure of 300 kPa (3 bar) is exceeded on the pool water
side or 1000 kPa (10 bar) on the heating water side, the heat exchanger may
There is a risk of combustion.
The connections on the heating water side of the heat exchanger can attain
temperatures up to 100 °C.
The heat exchanger can heat up to the feed temperature of the heating water if
the pool water does not flow through it.
Connected plastic pipes may be thermally loaded to a non-permitted level and
If the heating circuit is not locked with the circulating/filter pump, the heat
exchanger may heat up to the feed temperature of the heating water.
The heat exchanger may be damaged.
Due to water drips onto the exterior skin or metal parts being swept into the
heat exchanger may be subject to contact corrosion due to immersion in water.
Pool water can become contaminated.
Metal parts being swept away into the heating coil of the heat exchanger can
cause leaks in the coil due to contact corrosion. Heating water can enter into