What is the maximum working pressure for the I 24 boiler?
The maximum working pressure for sealed systems is 2.5 bar (36.3 lb/in²). The safety valve has a non-adjustable preset lift pressure of 3 bar. The system should be filled until the pressure gauge registers 1 bar, then checked for leaks. (Page 6)
From the official Ideal Boilers I 24 manual, page 6
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