I am not 100% on why the kW rating on a gas rate is important on a combi, and what it means if the kW is too low or high, and weather I should record it in gross or net.
Also I am not 100% on why my analyser readings for CO2 and O2 are important on maximum and minimum rate. I have spent a lot of extra time (1hr+) on my boiler services getting the levels correct when I have found them to be out and often times it is difficult get the O2 level low enough and the CO2 level high enough without sending the CO over 200ppm. Also is there a method of adjusting the gas valve that's not so time consuming? I usually do maximum first, then minimum (which often then changes my Maximum readings) so back and forth I go using bath fulls of the customers hit water!
Thanks if anybody can help clear up these questions.
Also I am not 100% on why my analyser readings for CO2 and O2 are important on maximum and minimum rate. I have spent a lot of extra time (1hr+) on my boiler services getting the levels correct when I have found them to be out and often times it is difficult get the O2 level low enough and the CO2 level high enough without sending the CO over 200ppm. Also is there a method of adjusting the gas valve that's not so time consuming? I usually do maximum first, then minimum (which often then changes my Maximum readings) so back and forth I go using bath fulls of the customers hit water!
Thanks if anybody can help clear up these questions.
