I have attached a picture of a Lennox Heat Pump tag for reference to show what we need to identify parts. This tag is for a model 10HPB18-9P. On this particular model the 10HP tells us this is a 10 SEER heat pump. The B means this is a series B. the next 2 digits are 18 and that tells us this is 18,000 BTU or 1-1/2 ton. The last part of the model tells us this unit is the 9th revision which means this model has had 9 different changes in parts used during the manufacturing process since it was released. This 10 seer 1-1/2 ton B series heat pump had 14 revisions before being discontinued. It s critical to have an accurate model number to look up parts.
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Shortys HVAC Supplies 877-821-8770
