User Guide

340968-XIM-A-0108
Johnson Controls Unitary Products 19
FIGURE 13 - DNA COIL DELTA P VS. AIRFLOW
DNA018
DNA024-30
DNA042
DNA048-60
ID Coil Delta P
DNA Coil Delta P vs Airflow
Airflow (CFM)
DNA036
DNA024-30
DNA036
DNA042
DNA048-60
DNA018
400 600 800 1600 1200 1400 2000
1000
2200 1800
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
TABLE 13: SUPERHEAT CHARGING TABLE FOR DNA018
OUTDOOR
TEMP. °F
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM
INDOOR WB TEMP. (°F)
55 57 59 61 63 65 67 69 71 73 75
65 17.1 19.5 21.9 24.4 26.8 29.3 31.7 32.7 33.7 34.6 35.6
70 13.6 16.2 18.8 21.5 24.1 26.8 29.4 30.6 31.8 33.1 34.3
75 10.1 12.9 15.7 18.6 21.4 24.3 27.1 28.6 30.0 31.5 32.9
80 6.6 9.6 12.7 15.7 18.7 21.8 24.8 26.5 28.2 29.9 31.6
85 - 6.3 9.6 12.8 16.0 19.3 22.5 24.4 26.4 28.3 30.2
90 - - 6.8 9.9 13.0 16.1 19.3 21.6 24.0 26.4 28.8
95 - - - 7.1 10.0 13.0 16.0 18.8 21.7 24.5 27.4
100 ----7.19.612.015.418.822.325.7
105 -----6.18.012.016.020.024.0
110 -------8.613.117.722.2
115 -------5.110.315.420.5