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Trane Company (The)
Packaged Rooftop Air Conditioners -RT-DS-9
Packaged Rooftop Air Conditioners - RT-DS-9 - Page 908
Packaged Rooftop Air Conditioners -RT-DS-9
Digit 1, 2 — Unit Function TC = DX Cooling, No Heat TE = DX Cooling, Electric Heat YC = DX Cooling, Natural Gas Heat Digit 3 — Unit Airflow Design D = Downflow Configuration H = Horizontal Configuration Digit 4, 5, 6 — Nominal Cooling Capacity 330 = 27.5 Tons 360 = 30 Tons 420 = 35 Tons 480 = 40 Tons 600 = 50 Tons Digit 7 — Major Development Sequence A = First
Digit 8 — Power Supply (See Note 1) E = 208/60/3 F = 230/60/3 4 = 460/60/3 5 = 575/60/3
Digit 9 — Heating Capacity (See Note 4) 0 = No Heat (TC only) L = Low Heat (YC only) H = High Heat (YC only) Note: When second digit is "E" for Electric Heat, the following values apply in the ninth digit. A = 36 KW B = 54 KW C = 72 KW D = 90 KW E = 108 KW
Digit 10 Design Sequence A = First
Digit 11 — Exhaust 0 = None 1 = Barometric Relief (Available w/Economizer only) 2 = Power Exhaust Fan (Available w/Economizer only)
Digit 12 — Filter A = Standard 2" Throwaway Filters B = High Efficiency 2" Throwaway Filters C = High Efficiency 4" Throwaway Filters
Digit 13 — Supply Fan Motor, HP 1 = 7.5 Hp Std. Eff. 2 = 10 Hp Std. Eff. 3 = 15 Hp Std. Eff. 4 = 20 Hp Std. Eff. 5 = 7.5 Hp Hi. Eff. 6 = 10 Hp Hi. Eff. 7 = 15 Hp Hi. Eff. 8 = 20 Hp Hi. Eff.
Digit 14 — Supply Air Fan Drive Selections (See Note 3) A = 550 RPM H = 500 RPM B = 600 RPM J = 525 RPM C = 650 RPM K = 575 RPM D = 700 RPM L = 625 RPM E = 750 RPM M = 675 RPM F = 790 RPM N = 725 RPM G = 800 RPM Digit 15 — Fresh Air Selection A = No Fresh Air B = 0-25% Manual Damper C = 0-100% Economizer, Dry Bulb Control D = 0-100% Economizer, Reference Enthalpy Control E = 0-100% Economizer, Differential Enthalpy Control F = "C" Option and Low Leak Fresh Air Damper G = "D" Option and Low Leak Fresh Air Damper H = "E" Option and Low Leak Fresh Air Damper Digit 16 — System Control 1 = Constant Volume 2 = VAV Supply Air Temperature Control w/o Inlet Guide Vanes 3 = VAV Supply Air Temperature Control w/Inlet Guide Vanes 4 = VAV Supply Air Temperature Control w/Variable Frequency Drive w/o Bypass 5 = VAV Supply Air Temperature Control w/Variable Frequency Drive and Bypass Note: Zone sensors are not included with option and must be ordered as a separate accessory. Digit 17+ — Miscellaneous A = Service Valves (See Note 2) B = Through the Base Electrical Provision C = Non-Fused Disconnect Switch with External Handle D = Factory-Powered 15A GFI Convenience Outlet and Non-Fused Disconnect Switch with External Handle E = Field-Powered 15A GFI Convenience Outlet F = ICS Control Option — Trane Communication Interface, Supply Air Sensing and Clogged Filter Switch G = Ventilation Override H = Hinged Service Access J = Condenser Coil Guards Note: 1. All voltages are across the line starting only. 2. Option includes Liquid, Discharge, Suction Valves. 3. Supply air fan drives A thru G are used with 27.5-35 ton units only and drives H thru N are used with 40 & 50 ton units only. 4. Electric Heat KW ratings are based upon voltage ratings of 240/480/600 V. Voltage offerings are as follows (see table 21-2 for additional information):
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