Lennox g12d2-55 manual

Created Date: 5/24/ PM. Created Date: 5/14/ PMFile Size: KB.  · It'a a Lennox G12D2. It's really old and I'm getting it replaced. The unit shows an input BTU of 82K and an output BTU or named "bonnet capacity" of This makes not sense. I believe furnaces of that era had a AFUE of 60% or so. If you divide those numbers I'm getting 80% or it's outputing 80% of what's comming in? Is it because the older furnaces calculated AFUE Differently?

Lennox Furnace Model G12D Parts are easily labeled on this page to help you find the correct component for your repair. Filter results by category, title and symptom. You can also view diagrams and manuals, review common problems that may help answer your questions, watch related videos, read insightful articles or use our repair help guide to get started. Product Literature. Looking for more information about your Lennox ® product? We’ve made it easy for you to find the resources you need, including product brochures and owner’s manuals. Simply narrow your search using the options below. Created Date: 5/14/ PM.

Blower data from unit tests conducted in Lennox Laboratory air test chamber Refer to the Installation Instructions for additional details. FEATURES. INSTALLATION INSTRUCTIONS FOR. G8 AND G9 SERIES LENNOX GAS FIRED FURNACES. I - SHIPPING AND PACKING LIST: wwww XUwNXWXWWVYVERx. This document describes the operation of Lennox thermostat. 51M Refer to the installation manual for instructions re- 1°F and 55°F (−17°C to 13°C).