Unit Identification; Product Number Stamped On Unit-Rating Plate - Carrier R-22 Application Manual And Service Manual

Fig. 4—Application with Air Conditioner Installed in a Horizontal Configuration
Fig. 5—Application with Heat Pump Installed in a Horizontal Configuration

UNIT IDENTIFICATION

Step 1—Product Number Stamped on Unit-Rating Plate
The unit product number has 16 positions containing groups of
numbers and letters that indicate specific information about the
unit. Listed below is the breakdown of the 16 positions.
Positions 1, and 2—Model Number
Example:
A 38 indicates the unit is either an air conditioner or a heat pump.
Positions 3, 4, and 5—Model Letters
Identifies a specific product model.
175' MAX.
GROUND LEVEL
175' MAX.
GROUND LEVEL
Positions 6, 7, and 8—Nominal Cooling Capacity (in thousands
Btuh)
Example: 036 = 36,000 Btuh or 3–ton capacity.
Position 9—Not Used
Ths position will contain a dash (—).
Position 10—Description
C—Canada
L—Limited Edition
Position 11—Not Used
Ths position will contain a dash (—).
Position 12—Electrical Characteristics
9
BASEMENT
BASEMENT
A90074
A90075