Specifications

2008 Residential Appendices RA3-17
Appendix RA3 – Residential Field Verification and Diagnostic Test Protocols
Table RA3.2-2 Target Superheat (Suction Line Temperature - Evaporator Saturation Temperature)
Return Air Wet-Bulb Temperature (°F)
(T
return, wb
)
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
Condenser Air Dry-Bulb Temperature (°F) (T
condenser, db
)
55 8.8 10.1 11.5 12.8 14.2 15.6 17.1 18.5 20.0 21.5 23.1 24.6 26.2 27.8 29.4 31.0 32.4 33.8 35.1 36.4 37.7 39.0 40.2 41.5 42.7 43.9 45.0
56 8.6 9.9 11.2 12.6 14.0 15.4 16.8 18.2 19.7 21.2 22.7 24.2 25.7 27.3 28.9 30.5 31.8 33.2 34.6 35.9 37.2 38.5 39.7 41.0 42.2 43.4 44.6
57 8.3 9.6 11.0 12.3 13.7 15.1 16.5 17.9 19.4 20.8 22.3 23.8 25.3 26.8 28.3 29.9 31.3 32.6 34.0 35.3 36.7 38.0 39.2 40.5 41.7 43.0 44.2
58 7.9 9.3 10.6 12.0 13.4 14.8 16.2 17.6 19.0 20.4 21.9 23.3 24.8 26.3 27.8 29.3 30.7 32.1 33.5 34.8 36.1 37.5 38.7 40.0 41.3 42.5 43.7
59 7.5 8.9 10.2 11.6 13.0 14.4 15.8 17.2 18.6 20.0 21.4 22.9 24.3 25.7 27.2 28.7 30.1 31.5 32.9 34.3 35.6 36.9 38.3 39.5 40.8 42.1 43.3
60 7.0 8.4 9.8 11.2 12.6 14.0 15.4 16.8 18.2 19.6 21.0 22.4 23.8 25.2 26.6 28.1 29.6 31.0 32.4 33.7 35.1 36.4 37.8 39.1 40.4 41.6 42.9
61 6.5 7.9 9.3 10.7 12.1 13.5 14.9 16.3 17.7 19.1 20.5 21.9 23.3 24.7 26.1 27.5 29.0 30.4 31.8 33.2 34.6 35.9 37.3 38.6 39.9 41.2 42.4
62 6.0 7.4 8.8 10.2 11.7 13.1 14.5 15.9 17.3 18.7 20.1 21.4 22.8 24.2 25.5 27.0 28.4 29.9 31.3 32.7 34.1 35.4 36.8 38.1 39.4 40.7 42.0
63 5.3 6.8 8.3 9.7 11.1 12.6 14.0 15.4 16.8 18.2 19.6 20.9 22.3 23.6 25.0 26.4 27.8 29.3 30.7 32.2 33.6 34.9 36.3 37.7 39.0 40.3 41.6
64 - 6.1 7.6 9.1 10.6 12.0 13.5 14.9 16.3 17.7 19.0 20.4 21.7 23.1 24.4 25.8 27.3 28.7 30.2 31.6 33.0 34.4 35.8 37.2 38.5 39.9 41.2
65 - 5.4 7.0 8.5 10.0 11.5 12.9 14.3 15.8 17.1 18.5 19.9 21.2 22.5 23.8 25.2 26.7 28.2 29.7 31.1 32.5 33.9 35.3 36.7 38.1 39.4 40.8
66 - 6.3 7.8 9.3 10.8 12.3 13.8 15.2 16.6 18.0 19.3 20.7 22.0 23.2 24.6 26.1 27.6 29.1 30.6 32.0 33.4 34.9 36.3 37.6 39.0 40.4
67 - - 5.5 7.1 8.7 10.2 11.7 13.2 14.6 16.0 17.4 18.8 20.1 21.4 22.7 24.1 25.6 27.1 28.6 30.1 31.5 33.0 34.4 35.8 37.2 38.6 39.9
68 - - - 6.3 8.0 9.5 11.1 12.6 14.0 15.5 16.8 18.2 19.5 20.8 22.1 23.5 25.0 26.5 28.0 29.5 31.0 32.5 33.9 35.3 36.8 38.1 39.5
69 - - - 5.5 7.2 8.8 10.4 11.9 13.4 14.8 16.3 17.6 19.0 20.3 21.5 22.9 24.4 26.0 27.5 29.0 30.5 32.0 33.4 34.9 36.3 37.7 39.1
70 - - - - 6.4 8.1 9.7 11.2 12.7 14.2 15.7 17.0 18.4 19.7 20.9 22.3 23.9 25.4 27.0 28.5 30.0 31.5 33.0 34.4 35.9 37.3 38.7
71 - - - - 5.6 7.3 8.9 10.5 12.1 13.6 15.0 16.4 17.8 19.1 20.3 21.7 23.3 24.9 26.4 28.0 29.5 31.0 32.5 34.0 35.4 36.9 38.3
72 - - - - - 6.4 8.1 9.8 11.4 12.9 14.4 15.8 17.2 18.5 19.7 21.2 22.8 24.3 25.9 27.4 29.0 30.5 32.0 33.5 35.0 36.5 37.9
73 - - - - - 5.6 7.3 9.0 10.7 12.2 13.7 15.2 16.6 17.9 19.2 20.6 22.2 23.8 25.4 26.9 28.5 30.0 31.5 33.1 34.6 36.0 37.5
74 - - - - - - 6.5 8.2 9.9 11.5 13.1 14.5 15.9 17.3 18.6 20.0 21.6 23.2 24.8 26.4 28.0 29.5 31.1 32.6 34.1 35.6 37.1
75 - - - - - - 5.6 7.4 9.2 10.8 12.4 13.9 15.3 16.7 18.0 19.4 21.1 22.7 24.3 25.9 27.5 29.1 30.6 32.2 33.7 35.2 36.7
76 - - - - - - - 6.6 8.4 10.1 11.7 13.2 14.7 16.1 17.4 18.9 20.5 22.1 23.8 25.4 27.0 28.6 30.1 31.7 33.3 34.8 36.3
77 - - - - - - - 5.7 7.5 9.3 11.0 12.5 14.0 15.4 16.8 18.3 20.0 21.6 23.2 24.9 26.5 28.1 29.7 31.3 32.8 34.4 36.0
78 - - - - - - - - 6.7 8.5 10.2 11.8 13.4 14.8 16.2 17.7 19.4 21.1 22.7 24.4 26.0 27.6 29.2 30.8 32.4 34.0 35.6
79 - - - - - - - - 5.9 7.7 9.5 11.1 12.7 14.2 15.6 17.1 18.8 20.5 22.2 23.8 25.5 27.1 28.8 30.4 32.0 33.6 35.2
80 - - - - - - - - - 6.9 8.7 10.4 12.0 13.5 15.0 16.6 18.3 20.0 21.7 23.3 25.0 26.7 28.3 29.9 31.6 33.2 34.8
81 - - - - - - - - - 6.0 7.9 9.7 11.3 12.9 14.3 16.0 17.7 19.4 21.1 22.8 24.5 26.2 27.9 29.5 31.2 32.8 34.4
82 - - - - - - - - - 5.2 7.1 8.9 10.6 12.2 13.7 15.4 17.2 18.9 20.6 22.3 24.0 25.7 27.4 29.1 30.7 32.4 34.0
83 - - - - - - ----6.38.29.911.613.114.916.6 18.420.121.823.525.226.928.630.332.033.7
84 - - - - - - ----5.57.49.210.912.514.316.1 17.819.621.323.024.826.528.229.931.633.3
85 - - - - - - -----6.68.510.311.913.715.5 17.319.020.822.624.326.027.829.531.232.9
86 - - - - - - -----5.87.89.611.313.215.0 16.718.520.322.123.825.627.329.130.832.6
87 - - - - - - -----5.07.08.910.612.614.4 16.218.019.821.623.425.126.928.730.432.2
88 - - - - - - ------6.38.210.012.013.9 15.717.519.321.122.924.726.528.330.131.8
89 - - - - - - ------5.57.59.411.513.3 15.117.018.820.622.424.326.127.929.731.5
Shaded area requires return plenum temperature of 70ºF or higher.