Trane SS-PRC005 User Manual

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Split System Condensing Units and Remote Chillers

20 to 120 Tons 50 and 60 Hz

November 2001

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Introduction

©American Standard Inc. 2001

T rane 20 through 120-ton air-cooled condensing units are the leaders in the split system marketplace. Designed for efficiency , reliability and flexibility , the T rane units have the most advanced design in the industry.

Twenty through 120-ton units feature the Trane 3-D™ Scroll compressor, solidstate controls and Trane’s exclusive Pac ked Stock Plus availability for quick shipment. These inno vations make an already proven product even better!

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Contents

Introduction Featur es and Benefits

Application Considerations Selection Procedur e

Model Number Description

General Data P erformance Data

Performance Adjustment Factors

Controls Electric P o wer Dimension and Weights Mechanical Specifications

2 4

6 7

10 12

25 27

29 46

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Trane 3-D Scr oll Compressor Simple Design with 70% Fewer Par ts

Fewer parts than an equal capacity reciprocating compressor means significant reliability and efficiency benefits. The single orbiting scroll eliminates the need for pistons, connecting rods, wrist pins and valves. Fewer parts lead to increased reliability . Fewer moving parts, less rotating mass and less internal friction means greater efficiency than reciprocating compressors.

The Trane 3-D Scroll pro vides important reliability and efficiency benefits. The 3-D Scroll allows the orbiting scrolls to touch in all three dimensions, forming a completely enclosed compression chamber whic h leads to increased efficiency . In addition, the orbiting scrolls only touch with enough force to create a seal; there is no wear between the scroll plates. The fixed and orbiting scrolls are made of high strength cast iron which results in less thermal distortion, less leakage, and higher efficiencies. The most outstanding feature of the 3-D Scroll compressor is that slugging will not cause failure. In a reciprocating compressor, however , the liquid or dir t can cause serious damage.

Low T orque Variation

The 3-D Scroll compressor has a very smooth compression cycle; torque variations are only 30 percent of that produced by a reciprocating compressor. This means that the scroll compressor imposes very little stress on the motor resulting in greater reliability. Low torque variation reduces noise and vibration.

Suction Gas Cooled Motor

Compressor motor efficiency and reliability is further optimized with the latest scroll design. Cool suction gas keeps the motor cooler for longer life and better efficiency.

Proven Design Through T esting and Research

With over twenty years of development and testing, Trane 3-D Scroll compressors have undergone more than 400,000 hours of laboratory testing and field operation. This work combined with over 25 patents makes Trane the

Features and Benefits

worldwide leader in air conditioning scroll compressor technology .

V oltage P o wer Supply

20 through 120-ton units have four voltage options in 200, 230, 460 and 575, resulting in improved stock coverage.

Passive Manif olding

T rane of fers a parallel manifolding scheme that uses no moving mechanical parts. This feature assures continuous oil return, again providing greater system reliability. And greater reliability means optimal performance over the life of the unit.

System Control Options

T rane of fers four system control options on 20 through 60-ton units and three system control options on the 80 through 120-ton units, each using solid- state electronics. These options allow the unit to be ordered only with the controls needed. In addition, they

come factory installed, saving field installation costs.

Coil Frost Pr otection

T rane of fers FROSTA T™ with the V A V system control option on the 20 through 120-ton units. FROST AT is the industry’s most reliable method of coil frost protection and assures that your system will provide energy efficient comfort at part load conditions.

Remote Evapor ative Liquid Chiller (EVP) Control Option

This option allows chilled water to be generated remotely from the condensing section.

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Features and Benefits

20 Through 60-T on Units

Standard Featur es

• Trane 3-D™ Scroll compressors

• Factory-installed Discharge and Liquid Line Service V alves

• Passive manifolding for 3-D Scroll compressors

• Standard ambient operating range 40°F to 115°F

• 14-gauge galvaniz ed steel frame

• Louvered panels for coil protection

• Slate gray air -dry paint finish (exceeds 672 hour salt spray test in accordance with ASTM B1 17)

Optional Features

• Non-fused disconnect

• Low ambient option

• Hot gas bypass to the evaporator inlet

• Suction service valve

• Pressure gauges

• Return air sensor

• Copper finned condenser coil

• Flow switch

• Unit spring isolators

• Neoprene-in-shear isolators

• UL/CSA approval (not available for 50 Hz)

• Pac ked Stock Plus program

• Extended Compressor W ar ranty

• Special coil coating for corrosion resistance

• Four systems control options

80 Through 120-T on Units

Standard Featur es

• Trane 3-D Scroll compressors

• Factory-installed discharge and liquid line service valves

• Standard ambient operating range 40°F to 115°F

• Independent refrigerant circuits

• 14-gauge g alvanized steel frame

• Louvered panels for coil protection

• Slate gray air -dry paint finish (exceeds 672 hour salt spray test in accordance with ASTM B1 1 7)

Optional Features

• Low ambient option

• Hot gas bypass to the evaporator inlet

• Suction service valve

• Pressure gauges

• Copper finned condenser coil

• Spring isolators

• Flow switch

• UL/CSA approval

• Pac ked Stoc k Plus A vailability

• Extended Compressor W ar ranty

• Special coil coating for corrosion resistance

• Three system control options

Pac ked St oc k Plus

T rane 20 through 120-ton air-cooled condensing units are available through the most flexible packed stoc k program in the industry. T rane knows that you want your units on the job site, on time, with the options you need.

Pac ked Stock Plus pro vides you with the controls and options you need — options like hot gas bypass, isolators and refrigerant gauges. You no longer have to settle for a basic unit requiring many field installed options to meet your job schedule. Now , you can get a customiz ed unit from the factory in record time.

The Trane Pa c ked Stoc k Plus program provides more control over unit selection and scheduling than ever before. T rane wants to make it easy for you to do business with them.

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Application Considerations

Certain application constraints should be considered when sizing, selecting and installing Trane air-cooled condensing units. Unit reliability is dependent upon these considerations. Where your application varies from the guidelines presented, it should be reviewed with the local Trane sales engineer .

Unit Sizing

Unit capacities are listed in the performance data section on pages 11 to

24. Intentionally oversizing a unit to assure adequate capacity is not recommended. Erratic system operation and excessive compressor cycling are often a direct result of an oversized condensing unit. In addition, an oversized unit is usually more expensive to purchase, install and operate. If oversizing is desired, consider using two units.

Unit Placement

A base or foundation is not required if the selected unit location is level and strong enough to support the unit’s operating weight (as listed on page 45).

Isolation and Sound Emission

The most effective form of isolation is to locate the unit away from any sound sensitive area. Structurally transmitted sound can be reduced by using spring or rubber isolators. The isolators are effective in reducing the low frequency sound generated by compressors and, therefore, are recommended for sound sensitive installations. An acoustical engineer should always be consulted on critical applications.

For maximum isolation effect, the refrigeration lines and electrical conduit should also be isolated. Use flexible electrical conduit. State and local codes on sound emissions should always be considered. Since the environment in which a sound source is located affects sound pressure, unit placement must be carefully evaluated.

Servicing

Adequate clearance for compressor servicing should be provided. Recommended minimum space envelopes for servicing are located in the dimensional data section of this catalog and can serve as guidelines for providing adequate clearance. The minimum space

envelopes also allow for control panel door swing and rountine maintenance requirements. Local code requirements may take precedence.

Unit Location

Unobstructed flow of condenser air is essential for maintaining condensing unit capacity and operating efficiency . When determining unit placement, careful consideration must be given to assure proper air flow across the condenser heat transfer surface. Failure to heed these considerations will result in warm air recirculatioin and coil air flow starvation.

Warm air recirculation occurs when discharge air from the condenser fans is recycled back at the condenser coil inlet. Coil starvation occurs when free air flow to the condenser is restricted.

Both warm air recirculation and coil starvation cause reductions in unit efficiency and capacity . In addition, in more severe cases, nuisance unit shutdowns will result from exessive head pressures. Accurate estimates of the degree of efficiency and capacity reduction are not possible due to the unpredictable effect of varying winds.

When hot gas bypass is used, reduced head pressure increases the minimum ambient condition for proper operation. In addition, wind tends to further reduce head pressure. Therefore, it is advisable to protect the air -cooled condensing unit from continuous direct winds exceeding 10 miles per hour.

Debris, trash, supplies, etc., should not be allowed to accumulate in the vicinity of the air -cooled condensing unit. Supply air movement may draw debris between coil fins and cause coil starvation. Special consideration should be given to units operating in low ambient temperatures. Condenser coils and fan discharge must be kept free of snow and other obstructions to permit adequate air flow for satisfactory unit operation.

Effect of Altitude on Capacity

Condensing unit capacities given in the performance data tables on pages 11 to 24 are at sea level. At elevations substantially above sea level, the decreased air density will decrease condenser capacity and, therefore, unit

capacity and efficiency. The adjustment factors in Table PAF -1 can be applied directly to the catalog performance data to determine the unit’s adjusted performance.

Ambient Considerations

Start-up and operation at lower ambients requires sufficient head pressure be maintained for proper expansion valve operation. At higher ambients, excessive head pressure may result. Standard operating conditions are 40°F to 115°F. With a low ambient damper, operation down to 0°F is possible. Minimum ambient temperatures are based on still conditions (winds not exceeding five mph). Greater wind velocities will result in increased minimum operating ambients. Units with hot gas bypass have a minimum operating ambient temperature of 10°F. For proper operation outside these recommendations, contact the local T rane sales of fice.

Coil Frost Pr otection

FROST AT™ is standard on condensing units when the VAV option is ordered. FROST AT consists of a ship-with thermostat for field installation on the suction line. A timer is also factoryinstalled to avoid short cycling. FROSTAT cycles the compressor off when the suction line is below 30°F. Refer to S/S-EB-43 for more detail.

When hot gas valves must be used on 20 to 120-ton units, they can be ordered as a miscellaneous option. 20 to 30-ton units require one valve; 40 to 60-ton units also require one valve except when no system control option is selected; this option requires two valves. 80 to 120-ton units require one valve when Supply Air VAV control is selected. Two valves are required on all other 80 to 120-ton control options.

Refriger ant Piping

Special consideration must always be given to oil return. Minimum suction gas velocities must always be maintained for proper oil return. Utilize appropriate piping tools for line sizing such as the CDS Refrigerant Piping Program. Fo r special applications, call Clarksville Product Support.

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Selection Pr ocedure

RAUC/AIR HANDLER

Selection Procedure

Net capacity curves for the RAUC condensing units are given on pages 14 through 23. These graphs can be used to cross plot an evaporator (EVP) performance curve. The resultant point of intersection will be the system design balance point. The design operating suction temperature and capacity can then be read directly from the graph. (Note: It is usually necessary to account for suction and liquid line losses in the performance accordingly. The actual losses are determined by the interconnecting piping.)

To plot the evaporator performance curve it is only necessary to obtain gross evaporator capacities for the given entering air conditions and cfm at two different saturated suction temperatures. The Trane Refrigeration Coil Computer Selection Program can be used to conveniently provide the necessary evaporator capacity values at the selected suction temperatures.

RAUC/EVP Selection Procedure

Preselected RAUC/EVP capacities are provided on pages 12 and 13. To select for other RAUC/EVP combinations or conditions, four quantities must be known. They are:

Entering (EWT) or leaving (L WT) water temperature.

Net cooling load (T).

Water temperature drop (dt).

Waterflow rate in g allons per minute (gpm). Knowing any two of the last three variables (T, dt, and gpm) will determine the third since T = (Gpm x dt)/24.

Standard Selection Procedur e

Determine: EWT, T, dt, gpm.

Select an evaporator (EBP) and split condensing unit (RAUC) to mix -matc h.

Enter Charts PD-18, PD-20, and PD-21 to find ITD/dt.

From Step 3 calculate the saturated suction temperature (SST) of the chiller at the given load using the formula SST = EWT - [(ITD/dt) x dt].

Enter the appropriate RAUC capacity char t on pages 1 4-23 with the result on SST and given load, T. If this point is below or on the proper condensing unit performance curve at the same suction temperature, the RAUC/EVP combination will meet the desired load. If above, try a larger chiller and/or condensing unit. Repeat Steps 2 through 5 until the most economical mix-matc h has been achieved.

Example

Given: Ambient Air = 95°F Supply Water T emperature = 45°F Waterflow = 230 Gpm Water Temperature Drop = 10°F

Step 1:

EWT = L WT + dt = 45°F + 1 0°F = 55°F Gpm = 230 gpm (given) dt = 10°F (given)

Step 2:

Choose a nominal RAUC and EVP: RAUC-D1 0 and 1 00-ton EVP

Step 3:

Gpm/nominal tonnage = 230/100 = 2.30 ITD/dt is read from Chart PD-21 as 1.70, assuming .0005 fouling factor.

Step 4:

SST = EWT - [(ITD/dt) x dt] = [55 - (1 .70 x 10)] = 38.0°F = SST Enter Chart PD-14 at 38.0°F SST and 95 ambient air. The condensing unit will produce 1182 MBh at 38.0°F SST, therefore the 100-ton EVP/RAUC-D1 0 is the proper selection.

Alternative Selection Pr ocedur e

Given: The same information as in the standard selection procedure plus a predetermined condensing unit.

Enter the specified RAUC condensing unit performance curve with the appropriate cooling load T, to determine the minimum required suction temperature.

Enter Chart PD-14 with ITD/dt (EWTsaturated suction temperature/dt) to determine a gpm/nominal tonnage. Since the gpm is known, the smallest nominal size EVP can therefore be calculated.

Example:

Given: Ambient Air = 95°F Condensing Unit - RAUC-C80 Supply Water T emperature - 45°F dt = 10°F T = 80.0 Tons

Step 1:

EWT = L WT + dt = 45°F + 1 0°F = 55°F dt = 10°F T = 80.0 Tons (960 MBh) Gpm = 152

Step 2:

Enter Chart PD-13 at 95°F and 80.0 tons to read the saturated suction temperature (SST) as 39.7.

Step 3:

Enter Chart PD-21 at an ITD/dt = (EWT SST)/dt = (55 - 39.7)/1 0 = 1.53

Then read the maximum gpm/nominal tons as 1 .87 (assume .0005 fouling factor). Therefore since 1.87 = Gpm/ Nominal T on = 152/1.87 = 81.4 T ons. An 80-ton EVP is the optimum selection.

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Model Number

20 - 60 Ton

Description

Air-Cooled Condensing Units

20 TO 60-T ON AIR-COOLED CONDENSING UNITS R A U C C20 E B A 1 0 A 0 0 0 0 0 0 0 0

1 2 3 4 5,6,7 8 9 10 1 1 12 13 14 15 16 17 18 1 9 20 21

DIGIT 1 — UNIT TYPE

R = Condensing Unit

DIGIT 2 — CONDENSER

A = Air Cooled

DIGIT 3 — AIRFLOW

U = Upflow

DIGIT 4 — DEVELOPMENT SEQUENCE

C = Third

DIGITS 5,6,7 — NOMINAL CAP ACIT Y

C20 = 20 Tons C25 = 25 Tons C30 = 30 Tons C40 = 40 Tons C50 = 50 Tons C60 = 60 Tons

Remote Chillers

20 TO 60-TON REMOTE CHILLERS EVP B C20 A 1 *

1,2,3 4 5,6,7 8 9 1 0

DIGIT 1,2,3 — UNIT TYPE

EVP = Evaporative Liquid Chiller

DIGIT 4 — DEVELOPMENT SEQUENCE

(Factory Assigned) A = First B = Second Etc.

Definition of Abbr eviations Used in This Catalog

AL — Aluminum ASTM — American Society of Testing and Materials CFM — Cubic Feet Per Minute Conn. — Connection CSA — Canadian Standards Association CU — Copper DIA. — Diameter dt — T emperature Dif ference EER — Energy Efficiency Ratio (Btu/W at t-Hour)

1. The service digit for each model number contains 21 digits; all 21 digits must be referenced.

DIGIT 8 — VOL TAGE AND START CHARACTERISTICS

E = 200/60/3 XL D = 415/50/3 XL F = 230/60/3 XL 4 = 460/60/3 XL 5 = 575/60/3 XL 9 = 380/50/3 XL

DIGIT 9 — SY STEM CONTROL

B = No System Control C = Constant Volume Control E = Supply Air V A V Control P = EVP Control

DIGIT 10 — DESIGN SEQUENCE

(Factory Assigned) A = First B = Second Etc.

DIGITS 5,6,7 — NOMINAL CAP ACIT Y

C20 = 20 Tons C25 = 25 Tons C30 = 30 Tons C40 = 40 Tons C50 = 50 Tons C60 = 60 Tons

EWT — Entering Water (Solution) T emperature (F) — Units of Temperature in Degrees F ahrenheit GPM — Gallons Per Minute ID — Inside Diameter (INT) — Internal IPLV — Integrated Part Load Value ITD — Initial Temperature Dif ference k — Thermal Conductivity KO — Knock Out

DIGIT 1 1 — AMBIENT CONTROL

0 = Standard 1 = 0°F (Low Ambient Dampers)

DIGIT 12 — AGENC Y APPROVAL

0 = None 3 = UL/CSA (not available for 50 Hz)

DIGIT 13-21 — MISCELLANEOUS

A = Unit Disconnect Switch B = Hot Gas Bypass D = Suction Service V alve F = Pressure Gauges G = Return Air S ensor H = Copper Fins T = Flow Switch (EVP Control Option Only) 1 = Spring Isolators 2 = Rubber Isolators 4 = 5-Y ear Compressor Warranty 9 = Pac ked Stoc k Designator

DIGIT 8 — NUMBER OF CIRCUITS

A = Single (20-30 Ton Units) D = Dual (40-60 Ton Units)

DIGIT 9 — TUBE MATERIAL

1 = Copper

DIGIT 10 — DESIGN SEQUENCE

(Factory Assigned) A = First B = Second Etc.

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Model Number

80 - 120 Ton

Description

Air-Cooled Condensing Units

80 TO 120-TON AIR-COOLED CONDENSING UNIT R A U C C80 4 B A 0 0 2 B 0 0 0 0 0

1 2 3 4 5,6,7 8 9 10 11 12 13 14 15 16 17 18 19

DIGIT 1 — UNIT TYPE

R = Remote Condensing Unit

DIGIT 2 — CONDENSER

A = Air-Cooled

DIGIT 3 — AIRFL OW

U = Upflow

DIGIT 4 — DEVELOPMENT SEQUENCE

C = Third

DIGITS 5,6,7 — NOMINAL CAP ACIT Y

C80 = 80 Tons D10 = 1 00 T ons D12 = 120 T ons

DIGIT 8 — VOLTAGE AND S TART CHARACTERISTICS

E = 200/60/3 XL D = 415/50/3 XL F = 230/60/3 XL 4 = 460/60/3 XL 5 = 575/60/3 XL 9 = 380/50/3 XL

DIGIT 9 — SY STEM CONTR OL

B = No System Control E = Supply Air V A V Control P = EVP Control

DIGIT 10 — DESIGN SEQUENCE

(Factory Assigned) A = First B = Second Etc.

DIGIT 1 1 — AMBIENT CONTROL

0 = Standard 1 = 0°F (Low Ambient Dampers)

DIGIT 12 — AGENC Y APPROVAL

0 = None 3 = UL/CSA (not available for 50 Hz)

DIGIT 13 — NUMBER OF CIRCUITS

2 = Dual (All 80-120 T on)

DIGIT 14-19 — MISCELLANEOUS

B = Hot Gas Bypass Valve D = Suction Service V alve F = Pressure Gauges H = Copper Fins 1 = Spring Isolators 3 = Flow Switch (EVP Control Option Only)

Remote Chillers

80 TO 120-TON REMOTE CHILLERS EVP B C80 D 1 A

1,2,3 4 5,6,7 8 9 10

DIGIT 1,2,3 — UNIT TYPE

EVP = Evaporator Liquid Chiller

DIGIT 4 — DEVELOPMENT SEQUENCE

(Factory Assigned) A = First B = Second Etc.

Definition of Abbreviations Used in This Catalog

KW – Kilowatt (Unit of Power) lbs. – Pounds (Unit of W eight) Loc. – Location LRA –Loc ked Rotor Amps L WT – Leaving Water (Solution) Temperature (MBH) – 1 x 10 MTG. – Mounting NPS – Nominal Pipe Size

1. The service digit for each model number contains 19 digits; all 19 digits must be referenced.

Btuh

DIGITS 5,6,7 — NOMINAL CAP A CITY

C80 = 80 Tons D10 = 1 00Tons D12 = 120 T ons

DIGIT 8 — NUMBER OF CIRCUITS

D = Dual (80-120 T on Units)

DIGIT 9 — TUBE MATERIAL

1 = Copper

DIGIT 10 — DESIGN SEQUENCE

(Factory Assigned) A = First B = Second Etc.

OD – Outside Diameter PD – Pressure Drop (Units are Feet of Water) RLA – Rated Load Amps SST – Saturated Suction Temperature UL – Underwriters Laboratories Inc. VA V – Variable Air Volume W/ – With W/O – Without XL – Across-the-Line-Star t

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General Data

Table GD-1 — General Data — 20-120 Ton Condensing Units

Nominal Tonnage 20 25 30 40 50 60 80 100 120 Model Number RAUC-C20 RAUC-C25 RAUC-C30 RAUC-C40 RAUC-C50 RAUC-C60 RAUC-C80 RAUC-D10 RAUC-D12 Compressor Data

Type Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Manifolded Sets Circuit #1 10T + 10T 10T + 15T 15T + 15T 10T + 10T 10T + 15T 15T + 15T 10T + 15T + 15T 10T + 10T 15T + 15T

Circuit # 2 N/A N/A N/A 10T + 10T 10T + 15T 15T + 15T 10T + 15T + 15T 10T + 10T 15T +15T

Unit Capacity Steps (%) 100-50 100-40 100-50 100-75-50-25 100-80-60-30 100-75-50-25 No Control & *19-38-50- *20-40-55 *25-50-63 VAV Option 63-81-100 70-85-100 75-88-100 EVP Option *19-38-50 *20-40-55 *25-50-63

Condenser Fan Data

Quantity/Fan Dia./Type 2/26”/Prop. 3/26”/Prop. 3/26”/Prop. 4/26”/Prop. 6/26”/Prop. 6/26”/Prop. 8/26”/Prop. 12/26”/Prop. 12/26”/Prop. Fan Drive Type Direct Direct Direct Direct Direct Direct Direct Direct Direct No. of Motors/Hp Each 2/1.0 3/1.0 3/1.0 4/1.0 6/1.0 6/1.0 8/1.0 12/1.0 12/1.0 Nominal Total Cfm 1400 0 18300 20900 28200 35600 4080 0 49600 6680 0 76000

Condenser Coil Data

Number of Coils/Size 1/71x71 1/71x71 1/45x71 2/65x70 2/51x96 2/66x96 4/65x70 4/51x96 4/66x96 (Inches) 1/49x71 Face Area (Sq. Ft.) 35.0 35.0 46.1 63.2 67.1 88.0 126.4 134.2 176.0 Rows/Fins Per Ft. 3/144 3/144 3/144 3/144 3/144 3/144 3/144 3/144 3/144 Condenser Storage 76 76 96 136 142 184 272 284 368 Capacity (Lbs.) (2)

Refrigerant Data (3)

No. Refrigerant Circuits1 11222 222 Refrigerant Type R-22 R-22 R-22 R-22 R-22 R-22 R-22 R-22 R-22 Refrigerant Operating 28 31 40 58 62 80 116 124 160 Charge (Lbs) (1) (4) See note 4 See note 4 See note 4 See note 4 See note 4 See note 4 See note 4 See note 4 See note 4

Minimum Outdoor Air Temperature for Mechanical Cooling

Standard Ambient 40-115 40-115 40-115 40-115 40-115 40-115 40-115 40-115 40-115 Operating Range (F) Low Ambient Option (F)0 00000 000

Notes:

1. Operating charge is approxmate for condensing unit only, and does not include charge for low side or interconnecting lines.

2. Condenser storage capacity is given at conditions of 95°F outdoor temperature, and 95% full.

3. Refer to Refrigerant Piping under Application Considerations on Page 6.

4. Condensing units are shipped with a nitrogen holding charge only.

Table GD-3 — EER Data — Condensing Unit Only (1)

Nominal Model Capacity Compressor KW Control Condensing Unit Tonnage Number (MBH) KW Each/Total KW Total KW EER IPLV

20 RAUC-C20 239 19.8 0.9/1.8 0.25 21.9 10.9 15.5 25 RAUC-C25 314 25.3 0.9/2.7 0.25 28.3 11.1 15.2 30 RAUC-C30 376 30.4 0.9/2.7 0.25 33.3 11.3 16.2 40 RAUC-C40 507 40.3 0.9/3.6 0.40 44.3 11.5 16.4 50 RAUC-C50 626 51.2 0.9/5.4 0.40 57.0 11.0 15.7 60 RAUC-C60 748 61.2 0.9/5.4 0.40 67.0 11.2 16.2

80 RAUC-C80 1045 87.9 0.9/7.2 0.50 95.6 10.9 16.1 100 RAUC-D10 1300 110.9 0.9/10.8 0.50 122.1 10.7 15.3 120 RAUC-D12 1560 131.5 0.9/10.8 0.50 142.6 10.9 16.2

Notes:

1. Condensing unit only ratings are in accordance with ARI standard 365. Full load ratings are at 95°F entering air temperature, and refrigerant conditions entering the condensing unit of 45°F saturated and 60°F actual temperature. Part load ratings are at 80°F entering air temperature and refrigerant conditions entering the condensing unit of 50°F saturated suction and 65°F actual temperature.

Net Total Unit Condenser Fan

Table GD-2 — Evaporator Chillers — 20-120 Tons

Nominal Tonnage 20 25 30 40 50 60 80 100 120 No. Of Circuits 111222222 Volume Shell (Gal) (1) 11.7 10.7 16.3 13.8 21.0 18.5 43.1 35.0 47.9 Tube Pull (In.) (2) 73 73 74 74 96 96 95 95 95 Refrigerant Operating Charge 8 10 12 16 20 24 26.8 33.4 40.4

Notes:

1. Shell volume is for waterside only.

2. Tube pull given is length of the evaporator.

3. Operating charge is approximate and for the evaporator chiller only.

63-81-100 70-85-100 75-88-100

+15T +15T +15T +15T

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P erformance Adjustment Factors

Table P AF -1 — Altitude Corr ection Multiplier f or Capacity

Altitude (Ft.) 2,000 4,000 6,000 8,000 10,000 Condensing Unit Only 0.982 0.960 0.933 0.902 0.866 Condensing Unit / Air Handling Unit Combination 0.983 0.963 0.939 0.911 0.881 Condensing Unit With Evap. 0.986 0.968 0.947 0.921 0.891

Table P AF -2 — Glycol Adjustment Factor for 20-60 Ton Split Condensing Units with the Remote Chiller (EVP) Option

Leaving 0% 10% 20% 30% 40% 50% Solution Freezing Point = 32°F Freezing Point = 24°F Freezing Point = 1 5°F Freezing Point = 5°F Freezing P oint = -12°F Freezing Point = -33°F T emp. CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW

10°F — — — — — — .833 .875 .952 .822 .912 .952 .811 .954 .945 .800 1.005 .945 15°F — — — — — — .850 .904 .959 .850 .937 .959 .840 .983 .959 .830 1.029 .953 20°F — — — — — — .882 .928 .971 .873 .962 .965 .864 1.008 .965 .855 1.057 .960 25°F — — — .909 .924 .977 .901 .952 .977 .901 .990 .972 .893 1.031 .972 .876 1.083 .972 30°F — — — .925 .947 .983 .925 .972 .983 .917 1.009 .978 .910 1.053 .978 .895 1.1 01 .978 35°F — — — .945 .963 .989 .938 .989 .989 .931 1.023 .984 .924 1.066 .984 .917 1.115 .978 40°F 1.000 1.000 1.000 .956 .974 .984 .949 1.000 .984 .943 1.034 .984 .937 1.077 .984 .930 1 .124 .979 45°F 1.000 1.000 1.000 .965 .981 .990 .959 1.005 .990 .953 1.039 .985 .947 1.080 .985 .936 1 .1 29 .979 50°F 1.000 1.000 1.000 .962 .982 .990 .957 1.007 .990 .951 1.038 .990 .946 1.079 .985 .935 1 .1 24 .985

Table P AF -3 — Glycol Adjustment Factor for 80-120 Ton Split Condensing Units with the Remote Chiller (EVP) Option

Leaving 0% 10% 20% 30% 40% 50% Solution Freezing Point = 32°F Freezing Point = 24°F Freezing Point = 15°F Freezing Point = 5°F Freezing P oint = -12°F Freezing Point = -33°F T emp. CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW

10°F — — — — — — .931 .980 .959 .924 1 .023 .954 .916 1.075 .949 .907 1.131 .944 15°F — — — — — — .943 .991 .967 .936 1 .035 .962 .928 1.085 .957 .919 1.140 .952 20°F — — — .998 1.010 1.000 .955 1.003 .973 .948 1.044 .973 .941 1.094 .969 .933 1 .1 49 .964 25°F — — — .998 1.01 4 1.000 .967 1 .016 .979 .961 1.056 .979 .954 1.106 .975 .946 1.160 .970 30°F — — — .998 1.015 .996 .978 1.030 .984 .973 1.068 .984 .966 1.117 .980 .958 1 .173 .976 35°F — — — .998 1.016 1.000 .987 1.039 .992 .982 1.078 .992 .975 1.124 .989 .968 1 .1 78 .981 40°F 1.000 1.000 1.000 .998 1 .0 1 6 1.000 .994 1.042 .996 .988 1.081 .993 .982 1.127 .989 .974 1.178 .986 45°F 1.000 1.000 1.000 .997 1 .0 1 6 .997 .996 1.045 .997 .991 1.083 .993 .985 1.126 .990 .977 1 .1 78 .986 50°F 1.000 1.000 1.000 .997 1 .0 1 6 1.000 .997 1.046 1.000 .992 1.082 .997 .985 1.124 .990 .978 1.175 .987

Percent of Ethylene Glycol by Weight

11SS-PRC005-EN

P erformance Data

20 - 60 Tons

Table PD-1 — Gross Syst em Capacity D ata — 20-60 T on Condensing Unit with Ev aporator Chiller

Condensing Leaving Outside Ambient Temperature Entering Condenser (F)

Unit-Nominal Chilled 85 95 105 115

Tons Model Water T emp. Tons Kw T ons Kw Tons Kw Tons Kw

RAUC C20 40 16.3 17.1 15.5 18.8 14.6 20.9 13.7 23.2

With 42 16.8 17.2 16.0 19.0 15.1 21.1 14.2 23.4

20 T on 45 17 .6 17 .4 16.8 19.2 15.9 21.3 14.9 23.7

20 50 19.0 17.8 18.1 19.6 17.2 21.7 16.2 24.1

25 50 24.6 22.8 23.4 25.2 22.2 27.9 20.9 31 .0

30 30 T on 45 27 .5 26.7 26.2 29.6 24.8 32.9 23.4 36.5

40 50 40.1 35.4 38.2 39.2 36.2 43.4 34.2 48.4

50 50 49.1 46.0 46.7 50.8 44.3 56.4 41.7 62.6

60 50 58.5 54.8 55.7 60.8 52.8 67.4 49.8 75.0

Chiller 48 18.5 17.6 17.6 19.5 16.7 21.6 15.7 24.0

RAUC C20 40 16.8 17.2 16.0 19.0 15.1 21.0 14.1 23.4

With 42 17.4 17.4 16.5 19.2 15.6 21.2 14.6 23.6 25 T on 45 18.2 17 .6 17 .3 19.4 16.4 21 .5 15.4 23.8 Chiller 48 19.1 17.8 18.2 19.6 17 .2 21.8 16.2 24.1

RAUC C25 40 21.0 21.8 20.0 24.1 18.9 26.8 17.8 29.8

With 42 21.7 22.0 20.7 24.4 19.5 27.0 18.4 30.1 25 T on 45 22.8 22.3 21.7 24.7 20.5 27 .4 1 9.3 30.4 Chiller 48 23.9 22.6 22.7 25.0 21.5 27.7 20.3 30.8

RAUC C25 40 21.9 22.1 20.8 24.4 19.7 27.1 18.4 30.1

With 42 22.7 22.3 21.5 24.6 20.3 27.3 19.1 30.3 30 T on 45 23.8 22.6 22.6 24.9 21 .4 27 .6 20.1 30.7 Chiller 48 24.9 22.9 23.7 25.3 22.4 28.0 21.1 31.1

RAUC C30 40 25.4 26.1 24.2 28.9 22.9 32.2 21.5 35.8

With 42 26.3 26.3 25.0 29.2 23.6 32.5 22.3 36.1 Chiller 48 28.9 27.1 27.5 30.0 26.0 33.3 24.5 37.0

RAUC C40 40 34.3 34.2 32.6 37.6 30.8 41.8 28.9 46.4

With 42 35.4 34.4 33.7 38.0 31.8 42.2 29.9 46.8 40 T on 45 37 .1 34.8 35.3 38.4 33.5 42.6 31 .5 47 .4 Chiller 48 38.9 35.2 37.0 39.0 35.1 43.2 33.1 48.0

RAUC C40 40 35.4 34.4 33.6 38.0 31.8 42.0 29.8 46.8

With 42 36.6 34.6 34.8 38.2 32.8 42.4 30.9 47.2 50 T on 45 38.4 35.0 36.5 38.8 33.5 43.0 32.5 47 .8 Chiller 48 40.7 35.6 38.3 39.2 36.2 43.4 34.1 48.4

RAUC C50 40 42.1 44.0 40.0 48.8 37.8 54.0 35.5 60.2

With 42 43.4 44.4 41.3 49.2 39.0 54.6 36.7 60.6 50 T on 45 45.5 45.0 43.3 49.8 40.9 55.2 38.5 61 .4 Chiller 48 47.6 45.6 45.3 50.4 42.9 55.8 40.4 62.0

RAUC C50 40 43.3 44.4 41.1 49.0 38.8 54.4 36.4 60.6

With 42 44.7 44.8 42.4 49.6 40.1 54.8 37.6 61.0 60 T on 45 46.9 45.4 44.5 50.2 42.1 55.6 39.6 61 .8 Chiller 48 49.1 46.0 46.7 50.8 44.2 56.4 41.5 62.4

RAUC C60 40 50.0 52.2 47.6 58.0 45.0 64.6 42.4 71.8

With 42 51.7 52.8 49.2 58.6 46.5 65.2 43.8 72.4 60 T on 45 54.2 53.4 51.6 59.4 48.8 66.0 46.0 73.4 Chiller 48 56.7 54.2 54.0 60.2 51.2 67.0 48.3 74.4

RAUC C60 40 55.1 53.8 52.2 59.6 49.2 66.2 46.1 73.4

With 42 56.9 54.2 54.0 60.2 50.9 66.8 47.8 74.2 80 T on 45 59.8 55.2 56.7 61 .0 53.5 67 .8 50.3 75.2 Chiller 48 62.7 56.0 59.5 62.0 56.2 68.8 52.8 76.2

50 1 9.7 17.9 18.8 19.8 17.8 21 .9 16.7 24.3

50 25.7 23.1 24.4 25.5 23.1 28.2 21.8 31.3

50 29.8 27.3 28.3 30.3 26.9 33.6 25.3 37.3

50 41 .5 35.8 39.5 39.6 37.4 43.8 35.2 48.6

50 50.6 46.4 48.1 51.2 45.6 56.8 42.9 63.0

50 64.7 56.6 61.4 62.6 58.0 69.4 54.6 77.0

SS-PRC005-EN12

P erformance Data

80 - 120 Tons

Table PD-2 — Gross System Capacity D ata — 80-120 T on Condensing Unit with Ev aporator Chiller

Condensing Leaving Outside Ambient Temperature Entering Condenser (F)

Unit-Nominal Chilled 85 95 105 115

T ons Model Water T emp. T ons Kw Tons Kw Tons Kw T ons Kw

RAUC C80 40 65.1 73.9 61.8 81.9 58.3 90.9 54.6 100.9

With 42 67.5 74.7 64.1 82.7 60.5 91.8 56.7 101.8 60 T on 45 71.3 75.8 67 .7 84.0 63.9 93.1 59.8 103.2 Chiller 48 75.1 77.0 71.3 85.2 67.3 94.4 63.1 104.6

RAUC C80 40 70.5 75.6 66.8 83.7 62.9 92.7 58.8 102.8

80 80 T on 45 77 .1 77 .6 73.1 85.8 68.8 95.0 64.4 105.2

100 100 T on 45 96.9 99.7 91.8 1 10.0 86.5 121.6 80.9 134.3

120 50 122.2 120.7 115.9 133.5 109.2 147.8 102.1 163.4

With 42 73.1 76.4 69.3 84.5 65.3 93.6 61.0 103.7 Chiller 48 81.2 78.9 77.0 87.2 72.5 96.4 67.9 106.6

RAUC C80 40 71.4 75.9 67.7 84.0 63.7 93.1 59.5 103.1

With 42 74.1 76.7 70.2 84.9 66.1 94.0 61.8 104.0

100 T on 45 78.2 77 .9 74.1 86.2 69.7 95.4 65.2 105.5

Chiller 48 82.4 79.2 78.0 87.5 73.5 96.8 68.7 107.0

RAUC D10 40 87.1 96.4 82.6 106.6 77.8 118.0 72.7 130.6

With 42 90.3 97.5 85.6 107.7 80.6 11 9.1 75.4 131.8 80 T on 45 95.2 99.1 90.3 109.4 85.0 121.0 79.6 133.7 Chiller 48 100.2 100.8 95.0 111.2 89.6 122.8 83.8 135.6

RAUC D10 40 88.6 96.9 83.9 107.1 79.0 119.7 73.9 131.1

With 42 91.9 98.0 87.1 108.2 73.9 118.5 76.6 132.4 Chiller 48 102.1 101.4 96.7 111.8 91.1 123.5 85.2 136.3

RAUC D10 40 89.4 97.2 84.7 107.4 79.7 118.8 74.5 131.4

With 42 92.7 98.3 87.9 108.5 82.7 120.0 77.3 132.7

120 T on 45 97 .9 100.0 92.7 11 0.4 87 .3 121.9 81 .6 134.6

Chiller 48 103.1 101.8 97.7 112.2 92.0 123.8 86.0 136.6

RAUC D12 40 102.8 114.5 97.4 126.9 91.7 140.8 85.7 156.1

With 42 106.5 115.7 101.0 128.2 95.1 142.1 88.9 157.5

100 T on 45 112.3 11 7 .6 106.4 130.2 100.3 144.2 93.8 159.7

Chiller 48 118.2 119.4 112.0 132.2 105.6 146.3 98.8 161.9

RAUC D12 40 104.1 114.9 98.6 127.3 92.9 141.2 86.8 156.6

With 42 108.0 116.2 102.3 128.7 96.3 142.6 90.0 158.0

120 T on 45 113.9 118.1 107 .9 130.7 101 .6 144.7 95.0 160.3

Chiller 48 120.0 120.0 113.7 132.7 107.1 146.9 100.1 162.5

50 77.7 77.8 73.8 86.1 69.6 95.3 65.3 105.6

50 84.0 79.7 79.6 88.1 75.0 97.4 70.2 107.6

50 85.2 80.1 80.7 88.5 76.0 97.8 71.1 108.0

50 103.7 10 1.9 98.3 1 12.4 92.6 124.1 86.7 136.9

50 105.6 102.6 100.0 11 3.1 94.3 124.7 88.2 137.6

50 106.7 102.9 101 .1 113.5 95.2 125.1 89.1 138.0

50 124.1 121.3 1 1 7.6 134.1 11 0.8 148.4 103.6 164.1

Table PD-3 – Evaporator Chiller Water Pressur e Drop

20 Ton 25 Ton 30 Ton 40 Ton 50 Ton

GPM PD GPM PD GPM PD GPM PD GPM PD

25.0 3.8 30.0 3.7 35.0 2.1 50.0 4.1 60.0 4.0

30.0 5.4 35.0 5.0 40.0 2.7 60.0 5.8 70.0 5.4

35.0 7 .2 40.0 6.4 45.0 3.4 70.0 7.7 80.0 6.9

40.0 9.2 45.0 7.9 50.0 4.1 80.0 9.9 90.0 8.6

45.0 11.5 50.0 9.6 60.0 5.8 90.0 12.3 100.0 10.4

50.0 14.0 60.0 13.5 70.0 7.7 100.0 15.0 120.0 14.7

60.0 19.6 70.0 18.1 80.0 9.9 120.0 21.1 140.0 19.6

70.0 26.1 80.0 23.2 90.0 12.3 140.0 28.1 160.0 25.1 ––––100.015.0––––

60 T on 80 T on 100 T on 120 Ton

GPM PD GPM PD GPM PD GPM PD

80.0 5.6 100.0 4.5 120.0 3.2 140.0 3.2

90.0 7.0 120.0 6.5 140.0 4.3 160.0 4.1

100.0 8.5 140.0 8.7 160.0 5.6 180.0 5.2

120.0 12.0 160.0 11.2 180.0 7.0 200.0 6.3

140.0 15.9 180.0 14.1 200.0 8.5 240.0 9.0

160.0 20.5 200.0 17.2 240.0 12.2 280.0 12.0

180.0 25.5 240.0 24.8 280.0 16.3 320.0 15.8

200.0 31.0 – – 320.0 21.0 360.0 19. 7 – – – – 360.0 26.0 400.0 24.0

Notes: — All capacites are at 10°F Delta water temp. Kw is

total of all compressors, but does not include condenser fan, water pump and control power.

— 25’ line loss is included.

GPM = Gallons Per Minute PD = Pressure Drop (Feet of Water)

13SS-PRC005-EN

P erformance

20 & 25 Ton

Data — 60 Hz

Chart PD-1 — 20 Ton Condensing Unit Performance — RAUC-C20 (60 HZ)

Condensing Units

Chart PD-2 — 25 Ton Condensing Unit Performance — RAUC-C25 (60 HZ)

SS-PRC005-EN14

P erformance

RA UC-C20 & C25

Data — 50 Hz

Chart PD-3 — 20 Ton Condensing Unit P erfor mance — RA UC-C20 (50 HZ)

Condensing Units

Chart PD-4 — 25 Ton Condensing Unit P erfor mance — RA UC-C25 (50 HZ)

15SS-PRC005-EN

P erformance

30 & 40 Ton

Data — 60 Hz

Chart PD-5 — 30 Ton Condensing Unit Performance — RAUC-C30 (60 HZ)

Condensing Units

Chart PD-6— 40 Ton Condensing Unit Performance — RAUC-C40 (60 HZ)

SS-PRC005-EN16

P erformance

RA UC-C30 & C40

Data — 50 Hz

Chart PD-7 — 30 Ton Condensing Unit P erfor mance — RA UC-C30 (50 HZ)

Condensing Units

Chart PD-8 — 40 Ton Condensing Unit P erfor mance — RA UC-C40 (50 HZ)

17SS-PRC005-EN

P erformance

50 & 60 Ton

Data — 60 Hz

Chart PD-9 — 50 Ton Condensing Unit Performance — RAUC-C50 (60 HZ)

Condensing Units

Chart PD-10— 60 Ton Condensing Unit Performance — RAUC-C60 (60 HZ)

SS-PRC005-EN18

P erformance

RA UC-C50 & C60

Data — 50 Hz

Chart PD-1 1 — 50 Ton Condensing Unit Perfor mance — RAUC-C50 (50 HZ)

Condensing Units

Chart PD-12 — 60 Ton Condensing Unit P erformance — RAUC-C60 (50 HZ)

19SS-PRC005-EN

P erformance

80 & 1 00 Ton

Data — 60 Hz

Chart PD-13 — 80 Ton Condensing Unit Performance — RAUC-C80 (60 HZ)

Condensing Units

Chart PD-14 — 100 T on Condensing Unit P erfor mance — RA UC-D1 0 (60 HZ)

SS-PRC005-EN20

P erformance

RA UC-C80 & D1 0

Data — 50 Hz

Chart PD-15 — 80 Ton Condensing Unit P erfor mance — RA UC-C80 (50 HZ)

Condensing Units

Chart PD-16 — 1 00 Ton Condensing Unit P erf or mance — RAUC-D10 (50 HZ)

21SS-PRC005-EN

P erformance

120 Ton

Data — 60 Hz

Chart PD-17 — 120 T on Condensing Unit P erfor mance — RA UC-D12 (60 HZ)

Condensing Units

20-60 Ton Evaporator Chiller Option

Chart PD-18 – EVP Perf ormance Curv e – 20 thr ough 40 T ons

SS-PRC005-EN22

P erformance

RA UC-D12

Data — 50 Hz

Chart PD-19 — 120 Ton Condensing Unit P erf or mance — RAUC-D12 (50 HZ)

Condensing Units

23SS-PRC005-EN

P erformance

20-60 Ton Evaporator

Data — 60 HZ

Chart PD-20 — EVP Perfor mance Curve — 50 and 60 Tons

Chiller Option

80-120 Ton Evaporator Chiller Option

Chart PD-21 — EVP Perfor mance Curve — 80 thr ough 120 Tons

SS-PRC005-EN24

Controls 20-60 Tons

Standard Options

20 through 60-Ton Condensing Units System Control Options

Select one of the four following control options to meet your application requirements.

• No System Control pro vides the compressors wired to a terminal strip inside the control panel. The temperature controller must be field provided and installed. The 20, 25 and 30-ton have two capacity steps. The 40, 50 and 60-ton sizes have four steps available.

• Constant V olume Control includes a W973 controller with two cool, four heat steps on the 20, 25 and 30-ton sizes. Four cool, four heat steps are provided on the 40, 50 and 60-ton sizes. The heating contacts are wired to terminals in the condensing unit control panel for easy interface with a field supplied electric duct heater or gas duct furnace. An optional return air sensor is available with this controller which provides the zone temperature input to the thermostat, thus generating the loading demand signal to the Honeywell W973 constant volume controller .

• Supply Air V A V Control provides a Honeywell W71 00A control system. This option is for use with shut-off VAV or

other applications requiring control of supply air temperature. The control provides a voltage output for interface with field supplied components to provide simultaneous economizer operation. The discharge air sensor ships with the unit for field mounting. The standard VAV unit is provided with reliable coil frost protection in the form of Trane’s proven and patented FROST AT™. FROSTA T is used in place of hot gas bypass.

• EVP Control consists of an interface panel in the main unit control box and a remote mounted control box that is customer installed. The remote mounted box contains the Honeywell W7100G controller. This water c hiller controller has built in fixed-off timers and chiller freeze protection. No provision for periodic pumpout or lead-lag is provided. Multiple chiller control is not provided. There are two capacity steps on 20, 25 and 30-ton sizes. Four capacity steps are provided on the 40, 50 and 60ton sizes.

Low Ambient Control Option

• Standard — Unit start-up and operation down to approximately 40°F at minimum compressor load.

• Low Ambient — Factory-installed head pressure control damper assembly permits operation down to 0°F by maintaining proper head pressure. Ten minute timer is standard for protection against nuisance trips.

Miscellaneous Options

20 through 60-Ton Condensing Units

Select the miscellaneous options to meet your project requirements.

• Non-Fused Unit Disconnect Switch– A non-fused disconnect switch is mounted in the control box and provides for interruption of power for servicing the unit. Lugs are suitable for copper wires only. No overcur rent or shor t circuit protection is provided for the unit by this switch.

• Hot Gas Bypass V alv e — Hot gas bypass valves are stocked and shipped with the unit for field installation. When suction pressure falls below the valve adjustable set point, the valve modulates hot gas to the inlet of the evaporator . (Note: FROST AT is standard on V A V units and is recommended in place of hot gas bypass).

25SS-PRC005-EN

Controls 80-120 Ton

Standard Options

80 through 120-Ton Condensing Units System Control Options

Select one of the three following control options to meet your application requirements.

• Supply Air V A V includes a multi-step, demand oriented, microprocessor -based Honeywell W7100 discharge air controller. W7100 control is designed for shut-off VAV systems. A verage disc harge air temperature is maintained by modulating an economizer and if needed, simultaneously sequencing stages of mechanical cooling. Field installation of the factory supplied discharge air sensor is required.

• No System Control option does not provide any temperature control components. The temperature control components are supplied by others and specifically designed for the unit’s application. This option includes all compressor steps wired to a terminal

strip for easy customer connection of field provided controls. Fixed-on and off timers are provided for compressor protection.

• EVP Control consists of an interface panel in the main unit control box and a remote mounted control box that is customer installed. The remote mounted box contains the Honeywell W7100G controller. This water c hiller controller has built in fixed-off timers and chiller freeze protection. No provision for periodic pumpout or leadlag is provided. Multiple chiller control is not provided. There are six capacity steps on 80-120 ton models.

Low Ambient Control Option

• Standard — Unit start-up and operation down to approximately 40°F at minimum compressor load.

• Low Ambient — Factory or fieldinstalled head pressure control damper assembly permits operation down to 0°F by maintaining proper head pressure. Ten minute time is standard for protection against nuisance trips.

Miscellaneous Options

80 through 120-Ton Condensing Units

Select the options to meet project requirements.

• Hot Gas Bypass V alv e maintains minimum refrigerant volume through compressor for proper motor cooling while holding suction temperature above the minimum during low load conditions. When suction pressure falls below the valve adjustable set point, the valve modulates hot gas to the inlet of the evaporator. Connections include ¼-inc h SAE flare connection to suction line for external equalizer line and 115-volt electrical connection for the integral liquid line solenoid valve. (Note: FROST AT is standard on V AV units and is recommended in place of hot gas bypass.)

• Spring Isolators — Vibration isolators field-installed under unit to reduce transmission of vibration to building structure and adjacent areas.

• Pressure Gauges available for suction and discharge for eac h refrigerant circuit. Gauges mount adjacent to compressors.

SS-PRC005-EN26

Electrical Data

Table ED-1 — Condensing Units — 60 Hz

Nominal Model V oltage/Start V oltage Circuit Ampacity Protection Device Element Fuse Size Of

T on s Number Characteristics Utilization Range (1), (4) (2), (4) (3), (4) Compressors

20 RAUC-C204 460/60/3XL 414-506 44 60 50 2

25 RAUC-C254 460/60/3XL 414-506 56 80 70 2

30 RAUC-C304 460/60/3XL 414-506 65 90 80 2

40 RAUC-C404 460/60/3XL 414-506 84 100 90 4

50 RAUC-C504 460/60/3XL 414-506 106 125 125 4

60 RAUC-C604 460/60/3XL 414-506 123 125 125 4

80 RAUC-C804 460/60/3XL 414-506 162 175 175 6

100 RAUC-D104 460/60/3XL 414-506 206 225 225 8

120 RAUC-D124 460/60/3XL 414-506 239 250 250 8

Notes:

1. Minimum circuit ampacity (MCA) is 125 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

2. Maximum Overcurrent Protection Device permitted by NEC 440-22 is 225 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

3. Recommended dual element fuse size is 150 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

4. Local codes may take precedence.

RAUC-C20E 200/60/3XL 180-220 101 125 125 2 RAUC-C20F 230/60/3XL 207-253 101 125 125 2

RAUC-C205 575/60/3XL 517-633 35 45 40 2 RAUC-C25E 200/60/3XL 180-220 129 175 150 2

RAUC-C25F 230/60/3XL 207-253 129 175 150 2 RAUC-C255 575/60/3XL 517-633 45 60 60 2

RAUC-C30E 200/60/3XL 180-220 148 200 175 2 RAUC-C30F 230/60/3XL 207-253 148 200 175 2

RAUC-C305 575/60/3XL 517-633 52 70 60 2 RAUC-C40E 200/60/3XL 180-220 192 225 225 4

RAUC-C40F 230/60/3XL 207-253 192 225 225 4 RAUC-C405 575/60/3XL 517-633 67 80 80 4

RAUC-C50E 200/60/3XL 180-220 244 300 300 4 RAUC-C50F 230/60/3XL 207-253 244 300 300 4

RAUC-C505 575/60/3XL 517-633 84 100 90 4 RAUC-C60E 200/60/3XL 180-220 282 300 300 4

RAUC-C60F 230/60/3XL 207-253 282 300 300 4 RAUC-C605 575/60/3XL 517-633 98 110 11 0 4

RAUC-C80E 200/60/3XL 180-220 373 400 400 6 RAUC-C80F 230/60/3XL 207-253 373 400 400 6

RAUC-C805 575/60/3XL 517-633 129 150 150 6 RAUC-D10E 200/60/3XL 180-220 472 500 500 8

RAUC-D10F 230/60/3XL 207-253 472 500 500 8 RAUC-D105 575/60/3XL 517-633 164 175 175 8

RAUC-D12E 200/60/3XL 180-220 548 600 600 8 RAUC-D12F 230/60/3XL 207-253 548 600 600 8

RAUC-D125 575/60/3XL 517-633 190 200 200 8

Allowable Minimum Max. Overcurrent Recommended Dual Number

Unit Characteristics

Table ED-2— Condensing Units — 50 Hz

Unit Characteristics

Nominal Model Voltage/Start Voltage Circuit Ampacity Protection Device Element Fuse Size Of

Tons Number Characteristics Utilization Range (1), (4) (2), (4) (3), (4) Compressors

20 RAUC-C20 380/415/50/3XL 360-440 42 50 50 2 25 RAUC-C25 380/415/50/3XL 360-440 55 80 70 2 30 RAUC-C30 380/415/50/3XL 360-440 64 90 80 2 40 RAUC-C40 380/415/50/3XL 360-440 80 90 90 4 50 RAUC-C50 380/415/50/3XL 360-440 104 125 125 4 60 RAUC-C60 380/415/50/3XL 360-440 122 125 125 4

80 RAUC-C80 380/415/50/3XL 360-440 159 175 175 6 100 RAUC-D10 380/415/50/3XL 360-440 201 225 225 8 120 RAUC-D12 380/415/50/3XL 360-440 237 250 250 8

Notes:

1. Minimum circuit ampacity (MCA) is 125 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

2. Maximum Overcurrent Protection Device permitted by NEC 440-22 is 225 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

3. Recommended dual element fuse size is 150 percent of the RLA of one compressor motor plus the total RLA of the remaining motors.

4. Local codes may take precedence.

Allowable Minimum Max. Overcurrent Recommended Dual Number

27SS-PRC005-EN

Electrical Data

Table ED-3 — Compressor Motor and Condenser Fan Data — 60 Hz

Nominal Compressor 1A (1) Compressor 1B Compressor 2A Compressor 2B Condenser Fans

T o ns Model V oltage RLA LRA RLA LRA RLA LRA RLA LRA Qty. FLA

20 RAUC-C20 460 XL 18.1 117 18.1 1 17 — — — — 2 1.8

25 RAUC-C25 460 XL 18.1 117 26.3 178 — — — — 3 1.8

30 RAUC-C30 460 XL 26.3 178 26.3 178 — — — — 3 1.8

40 RAUC-C40 460 XL 18.1 117 18.1 1 17 18.1 117 18.1 117 4 1.8

50 RAUC-C50 460 XL 18.1 117 26.3 178 18.1 117 26.3 178 6 1.8

60 RAUC-C60 460 XL 26.3 178 26.3 178 26.3 178 26.3 178 6 1.8

Nominal Compressor 1A/2A(2) Compressor 1B/2B Compressor 1C/2C Compressor 1D/2D Condenser Fans

T ons Model Voltage RLA LRA RLA LRA RLA LRA RLA LRA Qty. FLA

80 RAUC-C80 460 XL 18.1 117 26.3 178 26.3 178 — — 8 1.8

100 RAUC-D10 460 XL 26.3 178 26.3 178 18.1 1 17 18.1 117 12 1.8

120 RAUC-D12 460 XL 26.3 178 26.3 178 26.3 178 26.3 178 12 1.8

Notes:

1. Value given is per compressor on 20-60 ton units.

2. For 80 through 120-ton units, electrical values shown are for each compressor.

200 XL 41.4 269 41.4 269 — — — — 2 4.1 230 XL 41.4 251 41.4 251 –– –– –– –– 2 4.1

575 XL 14.4 94 14.4 94 — — — — 2 1.4 200 XL 41.4 269 60.5 409 — — — — 3 4.1

230 XL 41.4 251 60.5 376 –– –– –– –– 3 4.1 575 XL 14.4 94 21.0 143 — — — — 3 1.4

200 XL 60.5 409 60.5 409 — — — — 3 4.1 230 XL 60.5 376 60.5 376 –– –– –– –– 3 4.1

575 XL 21.0 143 21.0 143 — — — — 3 1.4 200 XL 41.4 269 41.4 269 41.4 269 41.4 269 4 4.1

230 XL 41.4 251 41.4 251 41.4 251 41.4 251 4 4.1 575 XL 14.4 94 14.4 94 14.4 94 14.4 94 4 1.4

200 XL 41.4 269 60.5 409 41.4 269 60.5 409 6 4.1 230 XL 41.4 251 60.5 376 41.4 251 60.5 376 6 4.1

575 XL 14.4 94 21.0 143 14.4 94 21.0 143 6 1.4 200 XL 60.5 409 60.5 409 60.5 409 60.5 409 6 4.1

230 XL 60.5 376 60.5 376 60.5 376 60.5 376 6 4.1 575 XL 21.0 143 21.0 143 21.0 143 21.0 143 6 1 .4

200 XL 41.4 269 60.5 409 60.5 409 — — 8 4.1 230 XL 41.4 251 60.5 376 60.5 376 –– –– 8 4.1

575 XL 14.4 94 21.0 143 21.0 143 — — 8 1.4 200 XL 60.5 409 60.5 409 41.4 269 41.4 269 12 4.1

230 XL 60.5 376 60.5 376 41.4 251 41.4 251 12 4.1 575 XL 21.0 143 21.0 143 14.4 94 14.4 94 12 1.4

200 XL 60.5 409 60.5 409 60.5 409 60.5 409 12 4.1 230 XL 60.5 376 60.5 376 60.5 376 60.5 376 12 4.1

575 XL 21.0 143 21.0 143 21.0 143 21.0 143 12 1.4

Table ED-4 — Compressor Motor and Condenser Fan Data — 50 Hz

Nominal Compressor 1A (1) Compressor 1B Compressor 2A Compressor 2B Condenser Fans

T o ns Model V oltage RLA LRA RLA LRA RLA LRA RLA LRA Qty. FLA

20 RAUC-C20 380/415 17.2 1 1 0 17.2 11 0 — — — — 2 1.7 25 RAUC-C25 380/415 17.2 1 1 0 26.2 174 — — — — 3 1.7 30 RAUC-C30 380/415 26.2 174 26.2 174 — — — — 3 1.7 40 RAUC-C40 380/415 17.2 1 1 0 17.2 11 0 — — — — 4 1.7 50 RAUC-C50 380/415 17.2 1 1 0 26.2 174 — — — — 6 1.7 60 RAUC-C60 380/415 26.2 174 26.2 174 — — — — 6 1.7

Nominal Compressor 1A/2A(2) Compressor 1B/2B Compressor 1C/2C Compressor 1D/2D Condenser Fans

T ons Model Voltage RLA LRA RLA LRA RLA LRA RLA LRA Qty. FLA

80 RAUC-C80 380/415 17.2 174 26.2 174 26.2 174 — — 8 1.7 100 RAUC-D10 380/415 26.2 174 26.2 174 17.2 11 0 17.2 11 0 12 1.7 120 RAUC-D12 380/415 26.2 174 26.2 174 26.2 174 26.2 174 12 1.7

Notes:

1. Value given is per compressor on 20-60 ton units.

2. For 80 through 120-ton units, electrical values shown are for each compressor.

NOTES:

1. Hot gas bypass, suction and liquid line connection locations shown in the front view do not represent holes in the unit panel. Access to these connections are provided by the customers.

2. Dimensional tolerance is ±1/8”.

35SS-PRC005-EN

Dimensional

100 Ton

Data

Figure DD-8 — Air -Cooled Condensing Unit — RA UC 100 Ton

Condensing Unit

NOTES:

1. Hot gas bypass, suction and liquid line connection locations shown in the front view do not represent holes in the unit panel. Access to these connections are provided by the customers.

2. Dimensional tolerance is ±1/8”.

SS-PRC005-EN36

Dimensional

120 Ton

Data

Figure DD-9 — Air -Cooled Condensing Unit — RAUC 120 Ton

NOTES:

1. DIMENSIONAL TOLERANCE IS ± 1/8”.

2. ALLOW 6’2” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR

SS-PRC005-EN40

Dimensional

50 Ton and 60 Ton

Data

Figure DD-13 — 50 and 60-Ton Evaporator Chiller

Evaporator Chiller

NOTES:

1. DIMENSIONAL TOLERANCE IS ± 1/8”.

2. ALLOW 8’0” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR

41SS-PRC005-EN

Dimensional

80 Ton

Data

Figure DD-14 — 80-Ton Evaporator Chiller

Evaporator Chiller

Evaporator Flange Connection. Flange adapter and O-ring supplied byT rane

SS-PRC005-EN42

Dimensional

100 Ton

Data

Figure DD-15 — 1 00-Ton Evaporator Chiller

Evaporator Chiller

Evaporator Flange Connection. Flange adapter and O-ring supplied byT rane

43SS-PRC005-EN

Dimensional

120 Ton

Data

Figure DD-16 — 120-Ton Evaporator Chiller

Evaporator Chiller

Evaporator Flange Connection. Flange adapter and O-ring supplied byT rane

SS-PRC005-EN44

Weights

Table W-1 — 20-60 T on Air-Cooled Condensing Units

Nominal Weight (Lbs.) Loc. 1 Loc. 2 Loc. 3 Loc. 4 Loc. 5 Loc. 6

T ons Model AL CU AL CU AL CU AL CU AL CU AL CU AL CU

20 RAUC-C20 1522 1720 509 559 398 439 345 404 270 317 — — — — 25 RAUC-C25 1640 1842 555 602 421 467 378 436 286 338 — — — — 30 RAUC-C30 1824 2115 580 640 635 708 291 364 318 403 — — — — 40 RAUC-C40 2769 3102 480 523 457 501 473 528 450 506 466 533 443 51 1 50 RAUC-C50 3148 3540 586 643 562 620 536 601 514 579 485 559 465 538 60 RAUC-C60 3480 4050 640 722 618 703 590 684 570 666 540 646 522 629

Note: Shipping weight is approximately equal to operating weight. AL = Aluminum Coil Fin CU = Copper Coil Fin

Figure W -1 — 20-30 T on Air-Cooled Condensing Units

Operating Weight On Isolator At Mounting Locations (Lbs.)

Figure W -2 — 40-60 T on Air-Cooled Condensing Units

T op View (Mounting Locations)

Table W-2 — 80-120 Ton Air Condensing Units

Nominal Coil Operating Weight On Isolator At Mounting Location (Lbs.)

T ons Model Fin Weight (Lbs.) Loc. 1 Loc.2 Loc. 3 Loc.4 Loc. 5 Loc. 6 Loc. 7 Loc. 8

80 RAUC-C80 AL 5500 855 557 835 544 830 541 810 528

RAUC-C80 CU 6099 926 629 909 618 906 616 890 605

100 RAUC-D10 AL 6472 1010 656 983 639 979 636 951 618

RAUC-D10 CU 7272 1104 762 1083 738 1080 736 1058 721

120 RAUC-D12 AL 7000 11 00 694 1075 678 1071 676 1046 660

RAUC-D12 CU 8199 1241 838 1225 827 1222 825 1206 815

Table W -3 — Evapor ativ e Chillers 20

Figure W -3—80-120 T on Air-Cooled Condensing Units

through 120 Ton

Nominal Operating Shipping

T ons Weight (Lbs.) Weight (Lbs.)

20 360 280 25 360 280 30 470 360 40 480 380 50 580 430 60 600 470

80 1205 875 100 1230 960 120 1535 1150

45SS-PRC005-EN

Mec hanical Specifications

20 through 60-ton Condensing Units

General

All air -cooledcondensing units have scroll compressors and are factory assembled and wired. Each unit is shipped from the factory with a nitrogen holding charge. Units are constructed of 14-gauge welded g alvanized steel frame with 14 and 16-gauge galvaniz ed steel panels and access doors. Unit surface is phosphatized and finished with an air -dry paint. This air-dry paint finish is durable enough to withstand a 1000-consecutivehour salt spray application in accordance with standard AS TM B117.

Compressor

T rane 3-D simple mechanical design with only three major moving parts. Scroll type compression provides inherently low vibration. The 3-D Scroll provides a completely enclosed compression chamber whic h leads to increased efficiency . Exhaustive testing on the 3-D Scroll, including start up with the shell full of liquid, has proven that slugging does not fail involutes. Direct-drive, 3600 rpm, suction gas-cooled hermetic motor. T rane 3-D Scroll compressor includes centrifugal oil pump, oil level sightglass and oil charging valve.

Condenser

Condenser coils have configured aluminum fins mechanically bonded to copper tubing with an integral subcooler. Condensers are factory leak tested at 450 psig air pressure underwater. Direct drive vertical discharge fans are statically and dynamically balanced. Three-phase motors have permanently lubricated ball bearings and thermal overload protection. Optional low ambient allows operating down to 0°F with external damper assembly for head pressure control.

Refriger ant Circuits and Capacity Modulation

20 through 30-ton sizes are single circuit and have two steps of capacity. The 40 through 60-ton sizes are two circuits with four capacity steps. Each circuit has two compressors piped in parallel. Discharge and liquid line service valves are standard on each circuit.

™

Scroll compressors have

Unit Control

Factory-provided 115-volt control circuit includes fusing and control power transformer. The unit is wired with magnetic contactors for compressor and condenser motors, three-leg, solid-state compressor overload protection, and high-low pressure cutouts. Charge isolation, reset relay and anti-recycle compressor timer are provided.

80 through 120-t on Condensing Units

Casing

The unit frame is a one-piece welded assembly of heavy gauge zinc-coated steel. Exterior surfaces are phosphatized and finished with slate gray air -dry paint. This air -dry paint finish exceeds 672 consecutive hour salt spray resistance in accordance with AS TM B117. Decorative louvered panels provide factory standard condenser coil protection.

Compressors

Split systems can have significantly more refrigerant than packaged systems and thus require controls to reliably manage this excess refrigerant. Each compressor shall have crankcase heaters installed, properly sized to minimize the amount of liquid refrigerant present in the oil sump during off cycles. Additionally, the condensing unit shall have controls to initiate a refrigerant pump down cycle at system shut down on each refrigerant circuit. To be operational, the refrigerant pump down cycle requires a fieldinstalled isolation solenoid valve on the liquid line near the evaporator.

Scroll compressors have a

Condenser Fan and Motors

V ertical discharge direct-drive fans are statically and dynamically balanced. Fan motors are three-phase with permanently lubricated ball bearings, built-in current and thermal overload protection.

Condenser Coil

Condenser coils have configured aluminum fins mechanically bonded to 3/8-inch OD copper tubing. T wo refrigerant circuits with separate subcooling circuits are standard. Coils are factory-tested at 450 psig air pressure underwater and vacuum dehydrated.

Unit Control

20 through 120-ton Evapor ator Chiller

Shell and tube design with seamless copper tubes expanded into tube sheets with removable heads. 20, 25 and 30-ton units are single-circuited; 40 through 120-ton are dual-circuited. The 20-60 ton evaporators are designed for a water side working pressure of 300 psig. 70-120 ton evaporators are designed for 150 psig water side working pressure. The units are designed, tested and stamped in accordance with the ASME Code for unfired pressure vessels for a refrigerant side working pressure of 225 psig. Evaporator chillers are provided with fittings for temperature sensors and a drain plug for cleaning.

SS-PRC005-EN46

Tr an e A business of American Standard Companies www.trane.com

For more information contact your local district office, or e-mail us at comfort@trane.com

Literature Order Number SS-PRC005-EN

File Number PL-UN-SS-PRC005-EN-11-2001

Supersedes SS-PRC005-EN-07-2001

Stocking Location Webb/Mason

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

Trane SS-PRC005 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Features and Benefits

Application Considerations

Selection Pr ocedure

20 - 60 Ton

80 - 120 Ton

General Data

P erformance Adjustment Factors

P erformance Data

20 & 25 Ton

RA UC-C20 & C25

30 & 40 Ton

RA UC-C30 & C40

50 & 60 Ton

RA UC-C50 & C60

80 & 1 00 Ton

RA UC-C80 & D1 0

120 Ton

20-60 Ton Evaporator Chiller Option

RA UC-D12

80-120 Ton Evaporator Chiller Option

Controls 20-60 Tons

Controls 80-120 Ton

Electrical Data

20 Ton

Condensing Unit

25 Ton

30 Ton

40 Ton

50 Ton

60 Ton

80 Ton

100 Ton

120 Ton

20 and 25 Ton

Evaporator Chiller

30 Ton

40 Ton

80 Ton

100 Ton

120 Ton

Weights

Mec hanical Specifications