Thermo Pride CMA4-50D36N, Installation And Service Manual

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IV. GENERAL INSTALLATION
A. FURNACE LOCATION
1. For best performance, locate the furnace so that it is centralized with respect
to the duct system.
2. The furnace installation is only intended for free air return through the furnace
door louvers.
DO NOT connect a ducted return air system directly to the furnace.
An improper return air installation may create a hazard and damage equipment,
as well as void all warranties.
3. Model CMA4 furnace may be installed on a combustible floor when utilizing
either the No. 70 counterflow floor base or CE111S coil cabinet for below the
floor duct systems, or the cottage base for floor level air distribution. See Figure
1A for description of Combustible Floor Base and Figure 1C for Cottage Base.
4. Model CMC2 furnace is designed to be installed directly on a combustible
floor and is not required to be installed on a base.
This furnace is ETL listed for closet, alcove or free standing applications. All
applications must comply with the requirements of this manual.
Combustible Floor Base Model: 70-BASE
For CMA4 models only.
Figure 1A.