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View the thread, titled "Temperature clamps on a plate HEX" which is posted in UK Plumbers Forums on UK Plumbers Forums.

Matt0029

Gas Engineer
If using temperature clamps on a plate HEX. To diagnose if it's blocked. Are you ment to have a large DT. As the plate is transferring heat when it's unblocked?
 
Attached are numbers from someone who posted them after renewing the PHEX on a WB 36CDI, the boiler was tripping on a high primary HEX temperature I think. The numbers in yellow were taken from the boiler data itself, the other numbers are my calcs.

1743578068553.png
 

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Matt0029

Gas Engineer
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leeds
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Heating Engineer (Has GSR)

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Temperature clamps on a plate HEX
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UK Plumbers Forums
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Matt0029,
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