Technical Guide

635425-YTG-D-0413
Johnson Controls Unitary Products 3
Note: Airflow is calculated for each system tonnage. Capacity varies with O.D. product.
COOLING CAPACITY - Coil Only
Blower
Model
Coil
Model
Rated
CFM
Entering Air F
(Dry/Wet Bulb)
MBH @ Evaporator Temperature and
Corresponding Pressure °F/PSIG
35/61.5 40/68.5 45/76.0 50/84.0
Multi-Position - Upflow/Downflow/Horizontal
MX12B
MC30B**C 1,025
72 41.5 37.8 33.7 29.5
67 36.2 32.4 28.6 24.5
62 29.1 25.3 24.0 19.2
57 24.1 21.5 18.7 15.8
MC36B**C 1,250
72 52.0 47.3 42.3 37.3
67 41.7 36.8 32.3 27.4
62 32.5 27.3 29.8 22.2
57 27.9 25.8 23.8 22.2
MC43B**C 1,220
72 81.1 66.3 60.7 48.8
67 65.7 57.0 47.1 37.0
62 54.9 45.2 34.7 24.7
57 42.2 37.4 31.9 26.9
MX12D
MC48D**C 1,125
72 46.8 42.4 37.6 33.0
67 37.4 33.3 29.4 24.3
62 28.9 24.6 21.7 19.6
57 25.1 23.3 21.7 19.6
MC60D**C 1,275
72 53.7 48.4 43.5 37.5
67 43.0 38.0 33.3 27.7
62 33.1 28.1 24.5 22.4
57 28.8 26.5 24.5 22.4
MC62D**C 1,450
72 91.7 78.4 68.1 52.3
67 73.4 61.5 52.0 38.6
62 57.3 45.6 38.4 31.2
57 49.2 43.0 38.4 31.2
MX16C
MC43C**C 1,365
72 68.7 67.6 65.8 54.4
67 67.0 62.7 51.4 39.9
62 59.3 48.8 38.2 26.9
57 46.5 41.1 35.4 29.8
MC48C**C 1,650
72 100.5 86.4 72.0 56.8
67 80.4 67.5 55.0 42.1
62 62.7 49.9 40.7 34.0
57 53.9 47.2 40.7 34.0
MX20D
MC48D**C 1,525
72 69.8 88.2 74.2 60.5
67 83.5 71.6 58.6 44.4
62 65.6 55.5 42.8 30.5
57 52.2 46.6 39.8 33.5
MC60D**C 1,780
72 110.4 98.3 82.4 66.1
67 91.7 76.9 62.8 47.2
62 72.2 58.3 44.2 29.7
57 55.1 50.4 43.4 36.3
MC62D**C 1,795
72 122.1 106.5 88.9 72.4
67 98.2 84.0 67.9 51.6
62 68.3 63.9 48.5 32.7
57 59.6 53.2 45.6 38.4