Trane RT-DS-10 manuale d’uso

R T -DS-10 April 1999 Packaged Rooftop Air Conditioners 23 to 42 T on (81-148 kW) V oyager  Commercial  50 HZ[...]

2 ©American Standard Inc. 1999 Features and Benefits Over the years the V oyager  product line has developed into the most complete line of commercial packaged units available. W e were first with the Micro when we developed micro- electronic unit controls and we move ahead again with V oyager Commercial products. Five new sizes from 23-42 tons[...]

3 Contents Contents Optional Features  Electric heat  Natural gas heat  LP gas heat (kit only)  Power exhaust  Barometric relief  High efficiency 2 (51 mm) throwaway filters  High efficiency 4 (102 mm) throwaway filters  High efficiency supply fan motors  Manual fresh air damper  Economizer with dry bulb control [...]

4 One of two matched scroll plates  the distinguishing feature of the scroll compressor . Chart illustrates low torque variation of 3-D Scroll compressors reciprocating compressor .  T rane 3-D ® Scroll Compressor Simple Design with 70% Fewer Parts Fewer parts than an equal capacity reciprocating compressor means significant reliability and [...]

5 Features and Benefits Micro Controls  For over 10 years T rane has been working with microprocessor controls in the applied equipment markets. These designs have provided the technology that has been applied to the V oyager units.  The Micro provides unit control for heating, cooling and ventilating utilizing input from sensors that measure[...]

6 Features and Benefits Excellent Part-Load Efficiency  The Scroll compressor s unique design allows it to be applied in a passive parallel manifolded piping scheme, something that a recip just doesn t do very well. When the unit begins stage back at part load it still has the full area and circuitry of its evaporator and condenser c[...]

7 Features and Benefits Serviceability T oday s owners are more conscious of the cost of service and maintenance. V oyager was designed with input from service contractors. Their information helped us design a unit that would get the serviceman off the job quicker and save the owner money . Here is why V oyager can save money in service. V oyage[...]

8 V ariT rac  T rane s changeover V A V System for light commercial applications is also available. Coupled with V oyager Commercial, it provides the latest in technological advances for comfort management systems and can allow thermostat control in every zone served by V ariT rac  . Downflow and Horizontal Economizers The economizers come[...]

9 Model Number Description TC  D  400  A  C  0  A  1  A  4  F  D  1  A 1,2 3 4,5,6 7 8  9 10 11 12  13 14 15 ?[...]

10 T able 10-1  General Data  23-25 T ons TC*275 (23 T ons) TC*305 (25 T ons) Cooling Performance 1 Nominal Gross Capacity(Btuh) 279,000 (81.8 kW) 304,000 (89.1 kW) System Power kW 26.1 30.2 kW Compressor Number/T ype 2/Scroll 2/Scroll Nominal Motor HP (ea) 8.4/12.5 11.7 Motor RPM 2875 2875 Natural Gas Heat 2 Low[...]

11 T able 11-1  General Data  29-33 T ons TC*350 (29 T ons) TC*400 (33 T ons) Cooling Performance 1 Nominal Gross Capacity(Btuh) 375,000 (105 kW) 409,000 (120 kW) System Power kW 34.0 42.5 Compressor Number/T ype 2/Scroll 3/Scroll Nominal Motor HP (ea) 12.5 2@11.7/8.4 Motor RPM 2875 2875 Natural Gas Heat 2 Low Hi[...]

12 General Data T able 12-1  General Data  43 T ons TC*500 (42T ons) Cooling Performance 1 Nominal Gross Capacity(Btuh) 505,000 (148 kW) System Power kW 52.9 Compressor Number/T ype 3/Scroll Nominal Motor HP (ea) 12.5 Motor RPM 2875 Natural Gas Heat 2 Low High Heating Input(Btuh) 335,000 (98.2 kW) 670,000 ([...]

13 Application Considerations Exhaust Air Options When is it necessary to provide building exhaust? Whenever an outdoor air economizer is used, a building generally requires an exhaust system. The purpose of the exhaust system is to exhaust the proper amount of air to prevent over or under -pressurization of the building. A building may have all or[...]

14 Application Considerations Acoustical Considerations Proper placement of rooftops is critical to reducing transmitted sound levels to the building. The ideal time to make provisions to reduce sound transmissions is during the design phase. And the most economical means of avoiding an acoustical problem is to place the rooftop(s) away from acoust[...]

15 Selection Procedure Selection of T rane commercial air conditioners is divided into five basic areas: 1 Cooling capacity 2 Heating capacity 3 Air delivery 4 Unit electrical requirements 5 Unit designation Factors Used In Unit Cooling Selection: 1 Summer design conditions  95 DB/ 76 WB (35/24.4°C), 95°F (35°C) entering air to condenser . 2 [...]

16 Selection Procedure 1 Winter outdoor design conditions  0°F (17.7°C). 2 T otal return air temperature  72°F (22.2°C). 3 Winter outside air minimum ventilation load and cfm  1,000 cfm and 87.2 MBh. 4 Peak heating load 150 MBh. Utilizing unit selection in the cooling capacity procedure. Mixed air temperature = RADB + % O.A. (OADB - RA[...]

17 Performance Adjustment Factors T able 17-2  Cooling Capacity Altitude Correction Factors Altitude ft. (m) Sea Level 1000 (304.8) 2000 (609.6) 3000 (914.4) 4000 (1219.2) 5000 (1524.0) 6000 (1828.8) 7000 (2133.6) Cooling Capacity Multiplier 1.00 0.99 0.99 0.98 0.97 0.96 0.95 0.94 KW Correction Multiplier (Compressors) 1.00 1.01 1.02 1.03 1.04 1[...]

18 Performance Data T able 18-1  23 T on Gross Cooling Capacities (MBh) English Ambient T emperature  Deg F 85 95 105 115 Ent Entering Wet Bulb T emperature  Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 249 197 277 160 307 111 238 191[...]

19 Performance Data T able 19-1  25 T on Gross Cooling Capacities (MBh) English Ambient T emperature  Deg F 85 95 105 115 Ent Entering Wet Bulb T emperature  Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 273 215 303 175 336 122 260 208[...]

20 Performance Data T able 20-1  29 T on Gross Cooling Capacities (MBh) English Ambient T emperature  Deg F 85 95 105 115 Ent Entering Wet Bulb T emperature  Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 322 264 356 207 394 143 307 256[...]

21 Performance Data T able 21-1  33 T on Gross Cooling Capacities (MBh) English Ambient T emperature  Deg F 85 95 105 115 Ent Entering Wet Bulb T emperature  Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 365 283 407 231 453 161 347 273[...]

22 T able 22-1  42 T on Gross Cooling Capacities (MBh) English Ambient T emperature  Deg F 85 95 105 115 Ent Entering Wet Bulb T emperature  Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 455 365 505 292 559 200 433 353 481 277 533 188 [...]

23 Performance Data T able 23-1  Electric Heat Air T emperature Rise (Degrees F) English Heater T otal CFM Input (kW) MB h 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 17000 26.9 92 12.1 10.6 9 .4 8. 5 7.7 7.1   40.4 138 18.2 15.9 14.1 12.7 11.6 10.6 9. 8 9.1 8 .5 7. 9 7.5 53.8 184 24.2 21.2 18.8 16.9 15.4 14.1 13.0 12[...]

24 T able 24-1  Supply Fan Per formance  23-29 T on English Static Pressure (in. wg) 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 SCFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 6670. 307. 0.92 371. 1.30 431. 1.75 490. 2.29 544. 2.86 593. 3.46 639. 4.08 681. 4.71 720. 5.36 7085. 317. 1.05 380. 1.46 436. 1.90 493. [...]

25 Figure 25-1 Performance Data[...]

26 T able 26-1  Supply Fan Performance  33 and 42 T on English Static Pressure (in. wg) 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 SCFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 9996. 309. 1.80 360. 2.34 404. 2.88 447. 3.48 487. 4.10 525. 4.75 562. 5.41 597. 6.07 630. 6.75 662. 7.47 10829. 326. [...]

27 Figure 27-1 Performance Data[...]

28 Performance Data T able 28-1  Component Static Pressure Drops (in wg) 50 Hz English Heating System Filters Nominal CF M Gas Heat Electric Heat ID Coil High Eff. Filters Inlet Guide Std.T ons (kW) Std Air Low High 1 Element 2 Element Adder 2 4 V anes Economizer 6670 0.07 0.05 0.04 0.05 0 0.03 0.02 0.04 0.331 7500 0.08 0.07 0.06 0.0[...]

29 Performance Data T able 29-2  Power Exhaust Fan Performance - 50 Hz English External Static Pressure  Inches of Water Exhaust High Med Low Airflow Speed Speed Speed (Cfm) ESP ESP ESP 1000 0.800   1500 0.780   2000 0.750  0.400 2500 0.720  0.380 3000 0.680  0.370 3500 0.650 0.420 0.360 4000 0.610 0.380 0.340 4500 0.560 [...]

30 Electrical Data Electrical Service Sizing T o correctly size electrical service wiring for your unit, find the appropriate calculations listed below . Each type of unit has its own set of calculations for MCA (Minimum Circuit Ampacity), MOP (Maximum Overcurrent Protection), and RDE (Recommended Dual Element fuse size). Read the load definitions [...]

31 Electrical Data T able 31-1  Electrical Service Sizing Data Fan Motors Compressor Supply Condenser Electrical 2 Qty./ R L A L R A F L A Max. Model Characteristics Nominal HP ( E a. ) Ea.) H P F L A No . H P (Ea. ) MCA* Fuse Size TC/TE/YC*275 380-415/50/3 2/10,15 18.1/27.3 110/174 5 13.1 3 .75 4.4 79 10 0 TC/TE/YC*305 380-415/50/3 2/15,15 2[...]

32 Controls V A V Units Only Sequence of Operation 1 Supply Air Pressure Control  Inlet Guide V ane Control Inlet guide vanes are driven by a modulating 2-10 vdc signal from the V A V Module. A pressure transducer measures duct static pressure, and the inlet guide vanes are modulated to maintain the supply air static pressure within an adjustabl[...]

33 Controls CV Units Only V A V Units Only Morning Warm-up (MWU) Morning warm-up control (MWU) is activated whenever the unit switches from unoccupied to occupied and the zone temperature is at least 1.5°F below the MWU setpoint. When MWU is activated the V A V box output will be energized for at least 6 minutes to drive all boxes open, the inlet [...]

34 Controls Both V A V and CV Units Control Sequences of Operation That are Common to Both V A V and CV Units V entilation Override (VOM) V entilation override allows an external system to assume control of the unit for the purpose of exhaust or pressurization. There are two inputs associated with ventilation override, the initiate input and the se[...]

35 Dimensional Data Figure 35-1  23-29 T ons (TC, TE, YC Low Heat) Note: Dimensions in ( ) are mm 1 = 25.4 mm[...]

36 Figure 36-1  23-29 T ons (YC High Heat) Dimensional Data Note: Dimensions in ( ) are mm 1 = 25.4 mm[...]

37 Figure 37-1  33-42 T ons (TC, TE, YC Low & High Heat) Dimensional Data Note: Dimensions in ( ) are mm 1 = 25.4 mm[...]

38 T able 38-2  Approximate Operating Weights  Kgs. Basic Unit Weights 1 W eight of Optional Components Non- Fact. Hi-Stat/ 0-25% Inlet Thru-the Fused GFI with Unit YC YC TC TE Baro. Power Hi Eff. Sup Man Guide Serv base Discon. Discon. Model Low Heat High Heat Relief Exhaust Fan Motor 2 Damper Econ. V anes V alves Elec. Switch Switch **D275 [...]

39 Field Installed Sensors V ariable Air V olume SINGLE SETPOINT SENSOR WITH SYSTEM FUNCTION LIGHTS (BA YSENS021*) NOTE: Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. PROGRAMMABLE NIGHT -SETBACK SENSOR (BA YSENS020*) Note: Dimensions in ( ) are mm 1 = 25.4 mm[...]

40 Field Installed Sensors Constant V olume DUAL SETPOINT , MANUAL/AUTOMA TIC CHANGEOVER SENSOR WITH SYSTEM FUNCTION LIGHTS (BA YSENS010*) WITHOUT LED ST A TUS INDICA TORS (BA YSENS008*) SINGLE SETPOINT WITHOUT LED ST A TUS INDICA TORS (BA YSENS006*) PROGRAMMABLE NIGHT -SETBACK SENSOR (BA YSENS019*) Note: Dimensions in ( ) are mm 1 = 25.4 mm[...]

41 Field Installed Sensors Constant and V ariable Air V olume NOTE: Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. Integrated Comfort  System Sensors ZONE TEMPERA TURE SENSOR W/TIMED OVERRIDE BUTTON AND LOCAL SETPOINT ADJUSTMENT (BA YSENS014*) ZONE TEMPERA TURE SENSOR W/TIMED OVERRIDE BUTTON (B[...]

42 Mechanical Specifications General The units shall be dedicated downflow or horizontal airflow . The operating range shall be between 115°F and 0°F (46.1°C and -17.8°C) in cooling as standard from the factory for all units. 60 HZ cooling performance shall be rated in accordance with ARI testing procedures. All units shall be factory assembled[...]

43 Mechanical Specifications V ariable Frequency Drives (VFDs) shall be factory installed and tested to provide supply fan motor speed modulation. The VFD shall receive a 2-10 VDC signal from the unit microprocessor based upon supply static pressure and shall cause the drive to accelerate or decelerate as required to maintain the supply static pres[...]

Library Product Literature Product Section Unitary Product Rooftop Model 000 Literature T ype Data Sales Catalog Sequence 10 Date April 1999 File No. PL-UN-R T -000-DS-10-499 Supersedes RT -DS-10 12/94 Ordering No. R T -DS-10 The T rane Company International Unitary Systems Group 3600 Pammel Creek Road La Crosse, WI 54601-7599 www .trane.com An Ame[...]