I thought I read somwhere that someone was asking about voltages so I just took voltage measurements of my combustion fan and my convection fan through the range of settings. My combustion air trim was at setting #3 and my feed trim was also set at setting #3. Here is what I came up with:
Combustion fan
Setting 5 - 116.6 v
Setting 4 - 111.2 v
Setting 3 - 105.7 v
Setting 2 - 99.4 v
Setting 1 - 89.0 v
Convection fan
Setting 5 - 118.7 v
Setting 4 - 108.4 v
Setting 3 - 103.3 v
Setting 2 - 97.7 v
Setting 1 - 91.1 v
I turned up the combustion air trim up to setting #5 left the feed at #3 and here is what I got:
Combustion fan
Setting 5 - 117.8 v
Setting 4 - 113.7 v
Setting 3 - 110.0 v
Setting 2 - 104.4 v
Setting 1 - 94.6 v
Convection fan
Setting 5 - 119.1 v
Setting 4 - 109.6 v
Setting 3 - 104.1 v
Setting 2 - 97.7 v no change
Setting 1 - 91.1 v no change
Jon
Combustion fan
Setting 5 - 116.6 v
Setting 4 - 111.2 v
Setting 3 - 105.7 v
Setting 2 - 99.4 v
Setting 1 - 89.0 v
Convection fan
Setting 5 - 118.7 v
Setting 4 - 108.4 v
Setting 3 - 103.3 v
Setting 2 - 97.7 v
Setting 1 - 91.1 v
I turned up the combustion air trim up to setting #5 left the feed at #3 and here is what I got:
Combustion fan
Setting 5 - 117.8 v
Setting 4 - 113.7 v
Setting 3 - 110.0 v
Setting 2 - 104.4 v
Setting 1 - 94.6 v
Convection fan
Setting 5 - 119.1 v
Setting 4 - 109.6 v
Setting 3 - 104.1 v
Setting 2 - 97.7 v no change
Setting 1 - 91.1 v no change
Jon
