User's Manual
Table Of Contents
- NATIONAL FUEL GAS CODE NATIONAL FIRE PROTECTION ASSOCIATION
- II. FURNACE SPECIFICATIONS - CMA SERIES
- III. GENERAL INSTRUCTIONS AND CLEARANCES – READ BEFORE START OF INSTALLATION
- Table 2
- H. Direct Venting Through a Sidewall
- I. Installation Of Outside Exhaust / Intake Terminations
- J. CONNECTING THE FURNACE TO ROOF VENT / AIR TERMINATIONS
- Mg-508 printing specifications.pdf

All installations and services must be performed by qualified service personnel.
B. BASE INSTALLATION
1. Combustible Floor Base Model: 70 BASE
Use the base bottom panel as a template to mark floor opening locations (see
Figure 2). Cut a square opening in the floor for the supply air connector duct. Cut
the opening 1-inch larger than the square template opening. (duct requires 1-inch
clearance to combustible floor).
Figure 2.
Figure 3.
After cutting openings in the floor, place the bottom panel in position. Mark the
square opening location on the distribution duct at the connection point of the
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