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230,000 BTU Stainless Steel Swimming Pool Heat Exchanger
Swimming pools that utilise chlorine for water purification cannot be connected directly to solar panels, this is because chlorine can attack copper. The solution is to fit a stainless steel heat exchanger. These are available in various sizes up to 460,000 BTU's. For solar use, heat exchangers should be rated at least one size larger than for a conventional heat source. Pipe fittings are 1" bsp on solar/boiler input and output and 1.5" bsp on pool connections. Both connections are male fittings.
230k BTU Stainless Steel Swimming Pool Heat Exchanger has 1" BSP connectors for boiler and 1½" BSP for pool connections as well as a sensor pocket at the top.
The procedure adopted for rating pool heat exchangers requires high flow / high temperature input. This is unrealistic of solar installations, which would not run efficiently under these conditions. Therefore it is customary to over-size pool heat exchangers when used with solar. Assuming you maintain the flow rates quoted in the table below, you can assume that the 230 000 BTU heat exchanger (67kW) will be suitable for up to 4 x 30tube 58mm solar panels. However, if flow rates are reduced, then output should be derated accordingly.
Swimming pool heat exchangers should be fitted downstream of the pool pump/filter unit.
Rated Output: BTU 230,000
KW Rating: 67.4
Filter Secondary Flow: 65gpm (18m3/hr)
Boiler Primary Flow: 20gpm (6m3/hr)
Primary Water Design Flow Temperature: degC 82
Primary Water Design Return Temperature: degC 71
Primary Head Loss: 3.75 feet (130mb)
P – Primary Connections BSP Male Thread 1”
S – Secondary Connections BSP Male Thread 1.5”
DIMENSIONS: Width 116mm x Length 695mm x Depth 140mm
Weight: 7.5 Kg
Swithenbanks 230,000 BTU Stainless Steel Swimming Pool Heat Exchanger
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