B
bennygas
Alright?
i've been wondering. we're all hell bent on getting the correct minimum inlet working pressure at appliances, all the more so it seems as many more of us tend to be more and more concerned in meeting the requirements for seemingly bigger and bigger combis in an environment of ever increasing accountability and professionalism. Now, in the days of atmospheric burners, the repercussions of low inlet working pressure were manifest by poor combustion, possible lighting back and various other issues. My question is, what are people finding to be the symptoms and faults that people are finding as a result of undergassed condensing boilers? given the construction of modern burners, is lightback something people have found to be occurring? how have people found combustion to have been affected in these cases? has anyone had any complete howlers?
For example, I used to do some audit work, and got called to an address where a 6 month old ecotec was about to be replaced because it kept locking out, numerous major parts had been exchanged, and the next step by the contractor was replacement. It was evident that the inlet wp at sFb was low at 8mb (knocking the hob and fire out of operation at times - how someone didn't put 2 and 2 together amazes me), but the only symptom was the boiler going to lockout. So it seems the only way the low wp manifested itself was problematic ignition and maintenance of lit gas at the burner, together with the adverse affect upon other connected appliances. forgetting other connected appliances, my query is about the observed effects upon condensing boilers of low inlet wp. what have people been finding?
i've been wondering. we're all hell bent on getting the correct minimum inlet working pressure at appliances, all the more so it seems as many more of us tend to be more and more concerned in meeting the requirements for seemingly bigger and bigger combis in an environment of ever increasing accountability and professionalism. Now, in the days of atmospheric burners, the repercussions of low inlet working pressure were manifest by poor combustion, possible lighting back and various other issues. My question is, what are people finding to be the symptoms and faults that people are finding as a result of undergassed condensing boilers? given the construction of modern burners, is lightback something people have found to be occurring? how have people found combustion to have been affected in these cases? has anyone had any complete howlers?
For example, I used to do some audit work, and got called to an address where a 6 month old ecotec was about to be replaced because it kept locking out, numerous major parts had been exchanged, and the next step by the contractor was replacement. It was evident that the inlet wp at sFb was low at 8mb (knocking the hob and fire out of operation at times - how someone didn't put 2 and 2 together amazes me), but the only symptom was the boiler going to lockout. So it seems the only way the low wp manifested itself was problematic ignition and maintenance of lit gas at the burner, together with the adverse affect upon other connected appliances. forgetting other connected appliances, my query is about the observed effects upon condensing boilers of low inlet wp. what have people been finding?
