Water/water heat exchanger – QWT, WTI, SWT, SWT-T
01.07.2015
17
Setup/installation
Purification equipment should always be installed after the heat exchanger.
When using chemicals (e.g. chlorine gas), it is not permitted for any gases to
penetrate the heat exchanger during filter standstill times.
3.4.3.1 QWT/SWT/WTI/SWT-T connection to a circulating pump/filter system
• Connect the hot water circuit to the primary side of the heat exchanger.
• Connect the secondary side of the heat exchanger to the pool water pipe via pipe
connections using pipe clips or via the internal thread with plastic/brass screw
connectors.
• Connect the WTI and SWT-T on the secondary side to the pool water pipework using
PVC adhesive pipe bonds.
3.4.3.2 QWT 100-140/100-209 and WTI 100-140/100-209 connection to a filter
system
• Connect both heating coils of the heat exchanger to the heating water circuit.
• Connect the secondary side of the heat exchanger to the pool water pipe via pipe
connections using pipe clips or via the internal thread with plastic/brass screw
connectors.
• Connect the WTI on the secondary side to the pool water pipework using PVC adhesive
pipe bonds.
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