What
Size Is
My Air Conditioner?
The size of your Lennox Air Conditioner
can be determined from the model number of the unit.
There are 12,000 BTUs (British Thermal
Units) per ton of AC cooling, unit size or capacity has always been
indicated in the
unit
model number in some way. Newer
units go by the 12,000 BTUs per ton rule when annotating the
unit's size in the model
number
which indicates the BTUs the unit can provide to the living space.
Older
units
would indicated the actual BTUs the unit could produce which would be
above the BTUs
the unit could supply after taking into account loss from
motor heat an other
factors.
For Example:
A unit with a model number of
10ACB42-1P lists the unit's capacity that it provides to the living
space. 42/12 = 3.5 Tons of
coolong.
A unit with a model number of
HS10-261-1P lists the unit's capacity that it is capable
of producing. 26,000 BTUs. 26/12 = 2.17
Tons in which .17 tons or 2000 BTUs are
needed to overcome motor heat and other factors
and 2 tons or 24,000 BTUs are available for the living space.
In summary older units indicate gross
BTU capacity and newer units indicate net BTU capacity. For a chart
that outlines and defines
the capacity contained in Lennox model numbers Click
Here |
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