Catalogue

26 UNT-PRC001-EN
Performance Data
Horizontal Concealed, Compact Concealed, Horizontal Recessed, and Vertical Recessed
AHRI cooling performance is based on 80/67°F entering air temperature, 45°F entering chilled water
temperature with a 10°F ΔT.
Heating performance is based on 70°F entering air temperature, 180°F entering hot water
temperature with a 30°F ΔT.
All performance measured on high speed tap, 115 V, 0.05 ESP, without filter. Free discharge EC
motor. See Table 6, p. 25 for performance groupings.
Table 7. 2-pipe performance—free discharge EC motor
COOLING HEATING
Motor
Power
(W)SIZE COIL
Airflow
(cfm)
Total
Capacity
(MBh)
Sensible
Capacity
Flow Rate
(gpm)
WPD
(ft H20)
Total
Capacity
(MBh) Q/ITD
Flow
Rate
(gpm)
WPD
(ft H20)
020 2HC 246 5.93 4.38 1.2 8.01 16.67 0.152 1.1 5.36 37
3HC 242 6.79 5.01 1.4 2.87 20.14 0.183 1.3 2.26 37
4HC 222 8.15 5.55 1.7 5.03 21.47 0.195 1.4 3.18 37
030 2HC 313 6.71 5.07 1.4 9.90 16.62 0.178 1.3 7.15 39
3HC 309 7.96 5.98 1.6 3.81 24.16 0.220 1.6 3.15 39
4HC 276 9.51 6.56 1.9 6.59 25.69 0.234 1.7 4.39 39
040 2HC 381 8.47 6.76 1.7 3.55 23.99 0.218 1.6 2.61 58
3HC 365 11.36 8.03 2.3 8.21 30.03 0.273 2.0 5.29 58
4HC 340 12.76 8.52 2.6 12.80 32.46 0.295 2.2 7.63 58
060 2HC 609 14.73 11.13 3.0 11.56 38.28 0.348 2.6 7.34 79
3HC 604 16.49 12.37 3.3 4.43 47.33 0.430 3.2 3.60 79
4HC 557 19.16 13.20 3.9 6.90 51.53 0.468 3.4 4.88 79
080 2HC 790 16.11 13.12 3.3 3.83 48.08 0.437 3.2 3.35 122
3HC 724 20.50 14.61 4.2 7.41 58.69 0.534 3.9 5.89 122
4HC 676 22.59 15.32 4.6 10.55 69.94 0.581 4.3 8.08 122
100 2HC 1015 25.90 19.29 5.3 10.84 66.92 0.608 4.5 7.22 145
3HC 1052 31.14 22.21 6.3 11.09 85.99 0.782 5.7 8.81 145
4HC 988 36.48 24.00 7.4 14.94 94.57 0.860 6.3 10.19 145
120 2HC 1105 26.94 20.19 5.5 11.69 70.87 0.644 4.7 8.05 160
3HC 1074 31.39 22.40 6.4 11.29 87.33 0.794 5.8 9.08 160
4HC 993 36.46 23.99 7.4 14.96 94.96 0.863 6.3 10.27 160
Table 8. 4-pipe performance—free discharge EC motor
SIZE COIL
Airflow
(cfm)
COOLING HEATING
Motor
Power
(W)
Total
Capacity
(MBh)
Sensible
Capacity
(MBh)
Flow Rate
(gpm)
WPD
(ft H20)
Total
Capacity
(MBh) Q/ITD
Flow Rate
(gpm)
WPD
(ft H20)
020 2C/1H 242 5.82 4.28 1.2 7.75 9.37 0.085 0.6 0.95
37
2C/2H 222 5.54 4.05 1.1 7.13 15.47 0.141 1.0 4.70
37
3C/1H 222 6.42 4.72 1.3 2.61 8.86 0.081 0.6 0.86
37
030 2C/1H 309 6.66 5.03 1.4 9.79 10.85 0.099 0.7 1.23
39
2C/2H 276 6.33 4.72 1.3 8.97 18.06 0.164 1.2 6.18
39
3C/1H 276 7.47 5.57 1.5 3.40 10.10 0.092 0.7 1.10
39
040 2C/1H 365 8.25 6.56 1.7 3.39 13.88 0.126 0.9 2.25
58
2C/2H 340 7.89 6.24 1.6 3.13 22.20 0.202 1.5 2.26
58
3C/1H 340 10.90 7.66 2.2 7.63 13.27 0.121 0.9 2.08
58
060 2C/1H 604 14.65 11.05 3.0 11.45 22.51 0.205 1.5 6.82
79
2C/2H 557 14.03 10.51 2.9 10.62 36.12 0.328 2.4 6.60
79
3C/1H 557 15.70 11.72 3.2 4.05 21.46 0.195 1.4 6.27
79
080 2C/1H 724 15.25 12.35 3.1 3.47 28.15 0.256 1.9 12.21
122
2C/2H 676 14.65 11.82 3.0 3.22 43.37 0.394 2.9 2.76
122
3C/1H 676 19.79 14.05 4.0 6.95 27.02 0.246 1.8 11.35
122
100 2C/1H 1052 26.31 19.64 5.3 11.15 42.10 0.383 2.8 36.37
145
2C/2H 988 25.41 18.86 5.2 10.47 65.71 0.597 4.4 6.97
145
3C/1H 988 30.02 21.33 6.1 10.35 40.52 0.368 2.7 32.11
145
120 2C/1H 1074 26.51 19.82 5.4 11.35 42.63 0.388 2.8 35.15
160
2C/2H 993 25.42 18.88 5.2 10.52 65.94 0.599 4.4 7.02
160
3C/1H 993 30.03 21.33 6.1 10.39 40.65 0.370 2.7 32.29
160
Note: Q/ITD = MBh (kW)/(Entering water temperature - Entering air temperature) when ∆T and gpm (L/s) remain constant. To determine heating capacities
at a different entering water temperature or entering air temp, compute the new ITD and multiply it by the Q/ITD shown.
Main Coil
UNT-PRC001-EN.book Page 26 Tuesday, May 8, 2012 10:54 AM