Trane Rtaaiom3 Manual
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11RTAA-IOM-3 Figure 1 Typical RTAA Packaged Unit 130 - 200 Ton (Front/Side Exterior View) Condenser Coils Connection Access for Control Voltage and InterlocksStarter and Power Panel Nameplate Control PanelLine Voltage Connection Access
12RTAA-IOM-3 Figure 2 Typical RTAA Packaged Unit 130 - 200 Ton (Rear/Side Exterior View) Chilled Water OutletChilled Water Inlet
13RTAA-IOM-3 Figure 3 Typical RTAA Packaged Unit 240-400 Tons Control PanelEvaporator Outlet Inlet
14RTAA-IOM-3 Figure 4 Typical RTAA Unit (Rear Exterior View) Condenser Fans/Motors Condenser Liquid Line Filter Electronic Expansion Valves Liquid Line Filter Condenser
15RTAA-IOM-3 Figure 5 Typical RTAA Unit (with Remote Evaporator Option) (Rear Exterior View) Condenser Fans/Motors Circuit #1Condenser Fans/Motors Circuit #2 Condenser Circuit #1Condenser Circuit #2 Circuit #1 Field Refrigerant Piping ConnectionsCircuit #2 Field Refrigerant Piping Connections
16RTAA-IOM-3 Table 1 General RTAA Mechanical Specifications Size130 140 155 170 185 200Compressor Quantity 2 2 2 2 2 2 Nominal Size(1)(Tons) 70/70 70/70 85/70 100/70 100/85 100/100 Evaporator Water Storage (Gallons) 49 46 73 69 62 61 (Liters) 184 175 277 261 234 231 Min. Flow (GPM) 156 156 186 186 222 222 (L/Sec) 9.8 9.8 11.7 11.7 14.0 14.0 Max. Flow (GPM) 504 504 612 612 720 720 (L/Sec) 31.8 31.8 38.6 38.6 45.4 45.4 Condenser Oty of Coils 4 4 4 4 4 4 Coil Length (In) 214/214 214/214 240/214 240/214 240/240 240/240 Coil Height (In) 42 42 42 42 42 42 Number of Rows 3 3 3 3 3 3 Condenser Fans Quantity 5/5 5/5 6/5 7/5 7/6 7/7 Diameter (In) 30 30 30 30 30 30 Total Airflow (CFM) 105,860 105,860 114,610 120,160 128,910 134,460 Nominal RPM 1140 1140 1140 1140 1140 1140 Tip Speed (Ft/Min) 8954 8954 8954 8954 8954 8954 Motor HP (Ea) 1.5 1.5 1.5 1.5 1.5 1.5 Min Starting/Oper. Ambient (2) Std Unit (Deg. F) 15 15 15 15 15 15 Low Amb. (Deg. F) 0 0 0 0 0 0 General Unit Refrigerant HCFC-22 HCFC-22 HCFC-22 HCFC-22 HCFC-22 HCFC-22 No. of Independent Refrigerant Circuits 2 2 2 2 2 2 % Min. Load (3) 10 10 10 10 10 10 Refrig. Charge(1)(Lb) 130/130 130/130 165/130 170/130 170/165 170/170 (Kg) 59/59 59/59 75/59 77/59 77/75 77/77 Oil Charge (Gal) 7/7 7/7 8/7 8/7 8/8 8/8 (1,4,5) (L)27127 27/27 31/27 31/27 31/31 31/31
17RTAA-IOM-3 Table 1 (Continued from previous page) General RTAA Mechanical Specifications Size240 270 300 340 370 400Compressor Quantity (1) 2/1 1-1/1 2/1 2/2 1-1/2 2/2 Nominal Size (1)(Tons) 70/100 100-70/100 100/100 70/100 100-70/100 100/100 Evaporator Water Storage (Gallons) 151 143 135 124 116 108 (Liters) 572 523 511 470 439 407 Min. Flow (GPM) 288 288 288 408 408 408 (L/Sec) 18.2 18.2 18.2 25.7 25.7 25.7 Max. Flow (GPM) 1080 1080 1080 1440 1440 1440 (L/Sec) 68.1 68.1 68.1 90.8 90.8 90.8 Condenser Qty. of Coils 4/4 2-2/4 4/4 4/4 2-2/4 4/4 Coil Length (In) 214/120 240-214/120 240/120 214/240240-214/240 240/240 Coil Height (In) 42 42 42 42 42 42 Number of Rows 3 3 3 3 3 3 Condenser Fans Quantity (1) 10/7 12/7 14/7 10/14 12/14 14/14 Diameter (In) 30 30 30 30 1 30 30 Total Airflow (CFM) 173,090 187,390 201,690 240,320 254,620 268,920 Nominal RPM 1140 1140 1140 1140 1140 1140 Tip Speed (Ft/Min) 8954 8954 8954 8954 8954 8954 Motor HP (Ea) 1.5 1.5 1.5 1.5 1.5 1.5 Min Starting/Oper. Ambient (2) 0 0 0 0 0 0 (Deg. F) General Unit Refrigerant HCFC-22 HCFC-22 HCFC-22 HCFC-22 HCFC-22 HCFC-22 No. of Independent Refrigerant Circuits 2 2 2 2 2 2 % Min. Load (3) 10 10 10 10 10 10 Refrig Charge(1)(Lb) 276/180 318/180 360/180 276/360 318/360 360/360 (Kg) 125/82 144/82 163/82 125/163 144/163 163/163 Oil Charge) (Gal) 15/8 16/8 17/8 15/17 16/17 17117 (1.4,5) (L) 57/31 61/31 65/31 57/65 61/65 65/65 Notes: (1) Data containing information on two circuits shown as follows: ckt1/ckt2 (2) Minimum start-up/operating ambient based on a 5 mph wind across the condenser. (3) Percent minimum load is for total machine, not each individual circuit. (4) Trane Part# OIL-15 (5) Add 6 gal./circuit for domestic water heater.
18RTAA-IOM-3 Figure 6 Remote Evaporator Refrigerant Suction Line Circuit #1Refrigerant Suction Line Circuit #2 Entering Chilled Water Temp. SensorsLeaving Chilled Water Temperature Sensor Evaporator Refrigerant Temperature Sensors Electronic Expansion Valve Sight Glass Filter/Dryer Terminal Box Refrigerant Liquid Line Circuit #1
19RTAA-IOM-3 RTAA Model Circuit/Tons Compressor/Tons130 1 70 A 70 270 B70 140 1 70 A 70 270 B70 155 1 85 A 85 270 B70 170 1 100 A 100 270 B70 185 1 100 A 100 285 B85 200 1 100 A 1012 100 B 100 RTAA Model Circuit/Tons Compressor/Tons240 1 140 A 70 B70 2 100 C 100 270 1 170 A 100 B70 2 100 C 100 300 1 200 A 100 B 100 2 100 C 100 340 1 140 A 70 B70 2 200 C 100 D 100 370 1 170 A 100 B70 2 200 C 100 D 100 400 1 200 A 100 B 100 2 200 C 100 D 100 Table 2 RTAA Refrigerant Circuit Designations and Capacities Package Unit 130-200 Remote Evaporator Unit 130-200 P N LCOND 1 A COND 2 B Electronic Expansion Valves P N LCOND 1 EVAP 1A COND 2EVAP 2 B EVAP 1 EVAP 2 240-300 P N L COND 2EVAP 2 EVAP 1COND 1 CA B 340-400 P N L COND 2EVAP 2 EVAP 1COND 1 CA DB
20RTAA-IOM-3 Warnings and Cautions Warnings and Cautions appear in boldface type at appropriate points in this manual. Warnings are provided to alert personnel to potential hazards that can result in personal injury or death; they do not replace the manufacturer’s recommendations. Cautions alert personnel to conditions that could result in equipment damage. Your personal safety and reliable operation of this machine depend upon strict observance of these precautions. The Trane Company assumes noliability for installation or serviceprocedures performed by unqualified personnel, Installation Responsibilities Generally, the contractor must do the following when installing an RTAA unit: [ ] Install unit on a flat foundation, level (within 1/4 [6.4 mm]), and strong enough to support unit loading. [ ] Install unit per the instructions contained in the Installation Mechanical and Installation Electrical sections of this manual. [ ] Install any optional sensors and make electrical connections at the UCM. Note: The standard leaving chilled water sensor is factory installed in the evaporator leaving water outlet. [ ] Where specified, provide and install valves in water piping upstream and downstream of evaporator water connections to isolate the evaporator for maintenance, and to balance/trim system.[ ] If desired, supply and install flow switches in the chilled water piping; interlock each switch with proper pump starter to ensure unit can only operate if water flow is established. Chilled water flow protection is provided by the UCM without the need for a chilled water flow switch. A flow switch for chilled water is strictly discretionary. [] For Remote Evaporator units only, furnish and install refrigerant piping, refrigerant and oil, per the instructions outlined in this manual. [ ] Furnish and install pressure gauges in inlet and outlet piping of the evaporator. [ ] Furnish and install a drain valve to the bottom of the evaporator. [ ] Supply and install a vent cock to the top of the evaporator. [ ] Where specified, furnish and install strainers ahead of all pumps and automatic modulating valves. [ ] Provide and install field wiring. [ ] Start unit under supervision of a qualified service technician. [ ] Install heat tape and insulate the chilled water lines and any other portions of the system, as required, to prevent sweating under normal operating conditions or freezing during low ambient temperature conditions.