Water/water heat exchanger – QWT, WTI, SWT, SWT-T
01.07.2015
7
Safety
1.3 Proper use
The QWT series heat exchanger is designed exclusively for heating pool water via hot water
heating.
The SWT series heat exchanger is designed exclusively for heating pool water via heat pump,
solar system or a low temperature heating system.
The WTI series heat exchanger is designed exclusively for heating pool water via hot water
heating; suitable for water with a raised chloride content (e.g. brine pools, therapy pools,
seawater pools).
The SWT-T series heat exchanger is designed exclusively for heating pool water via heat
pump, solar system or a low temperature heating system; suitable for water with a raised
chloride content (e.g. brine pools, therapy pools, seawater pools).
Any other use or use beyond this is not considered proper use. The manufacturer, BEHNCKE
® GmbH, will not be liable for any damage resulting from improper use.
Any other use requires consultation with and approval by the manufacturer.
Proper use also includes
• following all directions in the installation instructions and
• compliance with inspection and maintenance schedules.
The maximum approved operating pressure must not be exceeded.
Heating coil (primary side) max. 1000 kPa (10 bar)
Pool water (secondary side) max. 300 kPa (3 bar)
Only water with the following values may be used:
QWT, SWT WTI, SWT-T
Chloride content max. 500 mg/ l max. 3000 mg/l
Free chlorine max. 1.3 mg/l unlimited
pH 6.5 - 8.2 6.5 - 8.2
Salt content – max. 3.5%
Conversions and modifications of the heat exchanger are prohibited for safety
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