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  Trane Company (The)   Packaged Rooftop Air Conditioners -RT-DS-9  

Packaged Rooftop Air Conditioners - RT-DS-9 - Page 920

   

Packaged Rooftop Air Conditioners -RT-DS-9

Performance Data

Table 21-1 — Electric Heat Air Temperature Rise

KW Total Cfm
Input MBH 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 18000 19000 20000
36 123 14.2 12.6 11.3 10.3 9.4 8.7 8.1 7.6 — — — — —
54 184 21.2 18.9 17.0 15.4 14.2 13.1 12.1 11.3 10.6 10.0 9.4 8.9 8.5
72 246 28.3 25.2 22.6 20.6 18.9 17.4 16.2 15.1 14.2 13.3 12.6 11.9 11.3
90 307 35.4 31.5 28.3 25.7 23.6 21.8 20.2 18.9 17.7 16.7 15.7 14.9 14.2
108 369 — — — — 28.3 26.1 24.3 22.6 21.2 20.0 18.9 17.9 17.0

Notes:

1. Air temperature rise = (KW x 3413)/(scfm x 1.085).

2. All heaters on constant volume units provide 2 increments of capacity. All VAV units provide 1 step of heating capacity.

3. Air temperature rise in this table are based on heater operating at 240, 480 or 600 volts.

Table 21-2 — Available Electric Heat KW Ranges

Nominal Unit Size Tons Nominal Voltage
  208 240 480 600
27.5 27-41 36-54 36-90 54-90
30.0 27-41 36-54 36-90 54-90
35.0 27-41 36-54 36-90 54-90
40.0 41 54 54-108 54-108
50.0 41 54 54-108 54-108

Notes:

1. KW ranges in this table are based on heater operating at 208, 240, 480, and 600 volts.

2. For other than rated voltage, KW = (Applied Voltage/Rated Voltage)2 x Rated KW.

3. Electric heaters up to 54 KW are single element heaters, those above 54 KW are dual element heaters.

Table 21-3 — Natural Gas Heating Capacities

    Heat Input MBH Heating Output MBH  

Tons

 Unit Model No. (See Note 1) (See Note 1) Air Temp. Rise, F
27.5-35 YCD/YCH330**L      
YCD/YCH360**L 350,000/250,000 283,500/202,500 10-40
YCD/YCH420**L      
27.5-35 YCD/YCH330**H      
YCD/YCH360**H 600,000/425,000 486,000/344,500 25-55
YCD/YCH420**H      
40-50 YCD/YCH480**L      
YCD/YCH600**L 400,000/300,000 324,000/243,000 5-35
40-50 YCD/YCH480**H      
YCD/YCH600**H 800,000/600,000 648,000/486,000 20-50

Note:

1. Second stage is total heating capacity. Second Stage/First Stage.



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