If the pressure goes above 3.0 bar, the safety pressure valve in the boiler will operate and you may see water coming out of the pressure relief valve, which is 

Installation & Servicing Instructions – Rinnai

Installation of a condensing gas boiler must be reported to the relevant gas utility company and . Allowable Working Pressure ASME: 45 psi (3 bar). The hot 

Steam heated (2 bar in the jacket, 1,5 bar in the internal boiler). T° increase : 1°c Condensate tank 45 hl Tank pressure : 2,6 bar (test pressure) Page 28 

If the pressure goes above 3.0 bar, the safety pressure valve in the boiler will operate and you may see water coming out of the pressure relief valve, which is 

Installation of a condensing gas boiler must be reported to the relevant gas utility company and . Allowable Working Pressure ASME: 45 psi (3 bar). The hot 

Steam heated (2 bar in the jacket, 1,5 bar in the internal boiler). T° increase : 1°c Condensate tank 45 hl Tank pressure : 2,6 bar (test pressure) Page 28