Split System Condensing
Units and Remote Chillers
20 to 120Tons
50 and 60 Hz
November 2001
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Contents
Introduction
2
4
6
7
Features and Benefits
Application Considerations
Selection Procedure
Model Number Description
General Data
8
10
Performance Data
Performance Adjustment Factors
Controls
12
11
25
Electric Power
27
29
46
Dimension and Weights
Mechanical Specifications
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Features and
Benefits
Trane 3-D Scroll Compressor
Simple Design with 70% Fewer Parts
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.
TheTrane 3-D Scroll provides 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 which 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 dirt
can cause serious damage.
worldwide leader in air conditioning
scroll compressor technology.
come factory installed, saving field
installation costs.
Low Torque 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.
Voltage Power Supply
Coil Frost Protection
20 through 120-ton units have four
voltage options in 200, 230, 460 and
575, resulting in improved stock
coverage.
Trane offers FROSTAT™ with the VAV
system control option on the 20
through 120-ton units. FROSTAT 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.
Passive Manifolding
Trane offers a parallel manifolding
scheme that uses no moving
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.
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.
Remote Evaporative Liquid Chiller
(EVP) Control Option
This option allows chilled water to be
generated remotely from the
condensing section.
Proven Design Through Testing and
Research
With over twenty years of development
System Control Options
Trane offers 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
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 makesTrane the
4
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Features and
Benefits
20Through 60-Ton Units
Standard Features
•Trane 3-D™ Scroll compressors
• Factory-installed Discharge and Liquid
Line Service Valves
80Through 120-Ton Units
Standard Features
•Trane 3-D Scroll compressors
• Factory-installed discharge and liquid
line service valves
Packed Stock Plus
Trane 20 through 120-ton air-cooled
condensing units are available through
the most flexible packed stock program
in the industry.Trane knows that you
want your units on the job site, on time,
with the options you need.
• Passive manifolding for 3-D Scroll
compressors
• Standard ambient operating range 40°F
to 115°F
• Standard ambient operating range
40°F to 115°F
• Independent refrigerant circuits
• 14-gauge galvanized steel frame
• Louvered panels for coil protection
• Slate gray air-dry paint finish (exceeds
672 hour salt spray test in accordance
with ASTM B117)
Packed Stock Plus provides 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
• 14-gauge galvanized steel frame
• Louvered panels for coil protection
• Slate gray air-dry paint finish (exceeds
672 hour salt spray test in accordance
with ASTM B117)
schedule. Now, you can get a customized
unit from the factory in record time.
Optional Features
• Low ambient option
Optional Features
• Non-fused disconnect
• Low ambient option
• Hot gas bypass to the evaporator inlet
• Suction service valve
• Pressure gauges
• Hot gas bypass to the evaporator inlet
• Suction service valve
• Pressure gauges
• Copper finned condenser coil
• Spring isolators
TheTrane Packed Stock Plus program
provides more control over unit selection
and scheduling than ever before.Trane
wants to make it easy for you to do
business with them.
• Return air sensor
• Copper finned condenser coil
• Flow switch
• Flow switch
• UL/CSA approval
• Packed Stock Plus Availability
• Extended Compressor Warranty
• Special coil coating for corrosion
resistance
• Unit spring isolators
• Neoprene-in-shear isolators
• UL/CSA approval (not available for 50
Hz)
•Three system control options
• Packed Stock Plus program
• Extended Compressor Warranty
• Special coil coating for corrosion
resistance
• Four systems control options
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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
localTrane sales engineer.
envelopes also allow for control panel
door swing and rountine maintenance
requirements. Local code requirements
may take precedence.
capacity and efficiency.The adjustment
factors inTable PAF-1 can be applied
directly to the catalog performance data
to determine the unit’s adjusted
performance.
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.
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
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.
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.
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).
recommendations, contact the local
Trane sales office.
Coil Frost Protection
FROSTAT™ is standard on condensing
units when the VAV option is ordered.
FROSTAT consists of a ship-with
thermostat for field installation on the
suction line. A timer is also factory-
installed 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.
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.
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.
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.
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.
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.
Refrigerant 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. For
special applications, call Clarksville
Product Support.
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
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
6
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Selection
Procedure
Standard Selection Procedure
Alternative Selection Procedure
Given: The same information as in the
standard selection procedure plus a
predetermined condensing unit.
RAUC/AIR HANDLER
Selection Procedure
1.
Determine: EWT,T, dt, gpm.
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
2.
Enter the specified RAUC condensing
unit performance curve with the
appropriate cooling loadT, to determine
the minimum required suction
temperature.
Select an evaporator (EBP) and split
condensing unit (RAUC) to mix-match.
3.
Enter Charts PD-18, PD-20, and PD-21 to
find ITD/dt.
Enter Chart PD-14 with ITD/dt (EWT-
saturated suction temperature/dt) to
determine a gpm/nominal tonnage.
Since the gpm is known, the smallest
nominal size EVP can therefore be
calculated.
4.
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].
interconnecting piping.)
5.
Example:
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.
TheTrane Refrigeration Coil Computer
Selection Program can be used to
conveniently provide the necessary
evaporator capacity values at the
selected suction temperatures.
Enter the appropriate RAUC capacity
chart on pages 14-23 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-match
has been achieved.
Given:
Ambient Air = 95°F
Condensing Unit - RAUC-C80
Supply WaterTemperature - 45°F
dt = 10°F
T = 80.0Tons
Step 1:
EWT = LWT + dt = 45°F + 10°F =
55°F
dt = 10°F
T = 80.0Tons (960 MBh)
Gpm = 152
Example
Given:
Ambient Air = 95°F
SupplyWaterTemperature = 45°F
Waterflow = 230 Gpm
WaterTemperature Drop = 10°F
RAUC/EVP Selection
Procedure
Step 2:
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:
Enter Chart PD-13 at 95°F and 80.0 tons
to read the saturated suction
temperature (SST) as 39.7.
Step 3:
Step 1:
Enter Chart PD-21 at an ITD/dt = (EWT -
SST)/dt = (55 - 39.7)/10 = 1.53
EWT = LWT + dt = 45°F + 10°F =
55°F
Gpm = 230 gpm (given)
dt = 10°F (given)
a.
Entering (EWT) or leaving (LWT) water
temperature.
Then read the maximum gpm/nominal
tons as 1.87 (assume .0005 fouling
factor).Therefore since 1.87 = Gpm/
NominalTon = 152/1.87 = 81.4Tons. An
80-ton EVP is the optimum selection.
b.
Step 2:
Net cooling load (T).
Choose a nominal RAUC and EVP:
RAUC-D10 and 100-ton EVP
c.
Water temperature drop (dt).
Step 3:
d.
Gpm/nominal tonnage = 230/100 = 2.30
ITD/dt is read from Chart PD-21 as 1.70,
assuming .0005 fouling factor.
Waterflow rate in gallons per minute
(gpm). Knowing any two of the last three
variables (T, dt, and gpm) will determine
the third since
Step 4:
SST =
EWT - [(ITD/dt) x dt] =
T = (Gpm x dt)/24.
[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-D10 is
the proper selection.
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Model
Num ber
Description
20 - 60 Ton
Air-Cooled Condensing Units
20TO 60-TON AIR-COOLED CONDENSING UNITS1
R
1
A
2
U
3
C
4
C20
5,6,7
E
8
B
9
A
10
1
11
0
12
A
13
0
14
0
15
0
16
0
17
0
18
0
19
0
20
0
21
DIGIT 1 — UNITTYPE
DIGIT 8 —VOLTAGE AND START
CHARACTERISTICS
DIGIT 11 — AMBIENT CONTROL
R = Condensing Unit
0 = Standard
1 = 0°F (Low Ambient Dampers)
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 2 — CONDENSER
DIGIT 12 — AGENCY APPROVAL
A = Air Cooled
0 = None
3 = UL/CSA (not available for 50 Hz)
DIGIT 3 — AIRFLOW
U = Upflow
DIGIT 13-21 — MISCELLANEOUS
DIGIT 9 — SYSTEM CONTROL
DIGIT 4 — DEVELOPMENT SEQUENCE
A = Unit Disconnect Switch
B = Hot Gas Bypass
D = Suction Service Valve
F = Pressure Gauges
G = Return Air Sensor
H = Copper Fins
T = Flow Switch (EVP Control Option
Only)
1 = Spring Isolators
2 = Rubber Isolators
4 = 5-Year Compressor Warranty
B = No System Control
C = ConstantVolume Control
E = Supply Air VAV Control
P = EVP Control
C = Third
DIGITS 5,6,7 — NOMINAL CAPACITY
C20 = 20Tons
C25 = 25Tons
C30 = 30Tons
C40 = 40Tons
C50 = 50Tons
C60 = 60Tons
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
9 = Packed Stock Designator
Remote Chillers
20TO 60-TON REMOTE CHILLERS
EVP
1,2,3
B
4
C20
5,6,7
A
8
1
9
*
10
DIGIT 1,2,3 — UNITTYPE
DIGITS 5,6,7 — NOMINAL CAPACITY
DIGIT 8 — NUMBER OF CIRCUITS
EVP = Evaporative Liquid Chiller
C20 = 20Tons
C25 = 25Tons
C30 = 30Tons
C40 = 40Tons
C50 = 50Tons
C60 = 60Tons
A = Single (20-30Ton Units)
D = Dual (40-60Ton Units)
DIGIT 4 — DEVELOPMENT SEQUENCE
DIGIT 9 —TUBE MATERIAL
(Factory Assigned)
A = First
B = Second
1 = Copper
Etc.
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
Definition of Abbreviations Used in This Catalog
AL — Aluminum
ASTM — American Society ofTesting and Materials
CFM — Cubic Feet Per Minute
Conn. — Connection
EWT — Entering Water (Solution)Temperature
(F) — Units ofTemperature in Degrees Fahrenheit
GPM — Gallons Per Minute
ID — Inside Diameter
(INT) — Internal
CSA — Canadian Standards Association
CU — Copper
DIA. — Diameter
IPLV — Integrated Part Load Value
ITD — InitialTemperature Difference
k — Thermal Conductivity
dt — Temperature Difference
KO — Knock Out
EER — Energy Efficiency Ratio (Btu/Watt-Hour)
1. The service digit for each m odel num ber contains 21 digits; all 21 digits m ust be referenced.
8
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Model
Num ber
Description
80 - 120 Ton
Air-Cooled Condensing Units
80TO 120-TON AIR-COOLED CONDENSING UNIT1
R
1
A
2
U
3
C
4
C80
5,6,7
4
8
B
9
A
10
0
11
0
12
2
13
B
14
0
15
0
16
0
17
0
18
0
19
DIGIT 1 — UNITTYPE
DIGIT 8 —VOLTAGE AND START
CHARACTERISTICS
DIGIT 11 — AMBIENT CONTROL
R = Remote Condensing Unit
0 = Standard
1 = 0°F (Low Ambient Dampers)
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 2 — CONDENSER
DIGIT 12 — AGENCY APPROVAL
A = Air-Cooled
0 = None
3 = UL/CSA (not available for 50 Hz)
DIGIT 3 — AIRFLOW
U = Upflow
DIGIT 13 — NUMBER OF CIRCUITS
DIGIT 9 — SYSTEM CONTROL
DIGIT 4 — DEVELOPMENT SEQUENCE
2 = Dual (All 80-120Ton)
B = No System Control
E = Supply AirVAV Control
P = EVP Control
C = Third
DIGIT 14-19 — MISCELLANEOUS
DIGITS 5,6,7 — NOMINAL CAPACITY
B = Hot Gas Bypass Valve
D = Suction Service Valve
F = Pressure Gauges
H = Copper Fins
1 = Spring Isolators
3 = Flow Switch (EVP Control Option
Only)
C80 = 80Tons
D10 = 100Tons
D12 = 120Tons
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
Remote Chillers
80TO 120-TON REMOTE CHILLERS
EVP
1,2,3
B
4
C80
5,6,7
D
8
1
9
A
10
DIGIT 1,2,3 — UNITTYPE
DIGITS 5,6,7 — NOMINAL CAPACITY
DIGIT 9 —TUBE MATERIAL
EVP = Evaporator Liquid Chiller
C80 = 80Tons
D10 = 100Tons
D12 = 120Tons
1 = Copper
DIGIT 4 — DEVELOPMENT SEQUENCE
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
(Factory Assigned)
A = First
B = Second
Etc.
DIGIT 8 — NUMBER OF CIRCUITS
D = Dual (80-120Ton Units)
Definition of Abbreviations Used in This Catalog
KW – Kilowatt (Unit of Power)
lbs. – Pounds (Unit ofWeight)
Loc. – Location
OD – Outside Diameter
PD – Pressure Drop (Units are Feet ofWater)
RLA – Rated Load Amps
SST – Saturated SuctionTemperature
UL – Underwriters Laboratories Inc.
VAV –Variable AirVolume
W/ –With
LRA –Locked Rotor Amps
LWT – Leaving Water (Solution)Temperature
(MBH) – 1 x 103 Btuh
MTG. – Mounting
NPS – Nominal Pipe Size
W/O –Without
XL – Across-the-Line-Start
1. The service digit for each m odel num ber contains 19 digits; all 19 digits m ust be referenced.
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General Data
Table GD-1 — General Data — 20-120Ton Condensing Units
NominalTonnage
20
25
30
40
50
60
80
100
120
Model Number
Compressor Data
Type
Manifolded Sets
Circuit #1
RAUC-C20
RAUC-C25 RAUC-C30
RAUC-C40
RAUC-C50
RAUC-C60
RAUC-C80
RAUC-D10 RAUC-D12
Scroll
10T + 10T
N/A
Scroll
10T + 15T
N/A
Scroll
15T + 15T
N/A
Scroll
Scroll
Scroll
Scroll
Scroll
Scroll
10T + 10T
10T + 10T
10T + 15T
10T + 15T
15T + 15T 10T + 15T + 15T 10T + 10T
15T + 15T
+15T +15T +15T +15T
Circuit # 2
15T + 15T 10T + 15T + 15T 10T + 10T
15T +15T
+15T +15T +15T +15T
Unit Capacity Steps (%)
No Control &
VAV Option
100-50
100-40
100-50
100-75-50-25 100-80-60-30 100-75-50-25
*19-38-50-
63-81-100
*19-38-50
63-81-100
*20-40-55
70-85-100
*20-40-55
70-85-100
*25-50-63
75-88-100
*25-50-63
75-88-100
EVP Option
Condenser Fan Data
Quantity/Fan Dia./Type
Fan DriveType
No. of Motors/Hp Each
NominalTotal Cfm
2/26”/Prop.
Direct
2/1.0
14000
3/26”/Prop. 3/26”/Prop. 4/26”/Prop. 6/26”/Prop. 6/26”/Prop.
8/26”/Prop. 12/26”/Prop. 12/26”/Prop.
Direct
Direct
Direct
Direct
Direct
Direct
Direct
12/1.0
66800
Direct
12/1.0
76000
3/1.0
3/1.0
4/1.0
6/1.0
6/1.0
8/1.0
18300
20900
28200
35600
40800
49600
Condenser Coil Data
Number of Coils/Size
(Inches)
Face Area (Sq. Ft.)
Rows/Fins Per Ft.
Condenser Storage
Capacity (Lbs.) (2)
1/71x71
1/71x71
1/45x71
1/49x71
46.1
3/144
96
2/65x70
2/51x96
2/66x96
4/65x70
4/51x96
4/66x96
35.0
3/144
76
35.0
3/144
76
63.2
3/144
136
67.1
3/144
142
88.0
3/144
184
126.4
3/144
272
134.2
3/144
284
176.0
3/144
368
Refrigerant Data (3)
No. Refrigerant Circuits
RefrigerantType
1
R-22
28
1
R-22
31
1
R-22
40
2
R-22
58
2
R-22
62
2
R-22
80
2
R-22
116
2
R-22
124
2
R-22
160
Refrigerant Operating
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 AirTemperature for Mechanical Cooling
Standard Ambient
40-115
40-115
40-115
40-115
0
40-115
0
40-115
0
40-115
0
40-115
0
40-115
0
Operating Range (F)
LowAmbient Option (F)
0
0
0
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-2 — Evaporator Chillers — 20-120Tons
NominalTonnage
No. Of Circuits
20
1
25
1
30
1
40
2
50
2
60
2
80
2
100 120
2
2
Volume Shell (Gal) (1)
Tube Pull (In.) (2)
Refrigerant Operating Charge
Notes:
11.7 10.7 16.3 13.8 21.0 18.5 43.1 35.0 47.9
73
8
73
10
74
12
74
16
96
20
96
24
95
95
95
26.8 33.4 40.4
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.
Table GD-3 — EER Data — Condensing Unit Only (1)
Net
Capacity
(MBH)
239
314
376
507
626
748
Total Unit
Compressor
Condenser Fan
Nominal
Tonnage
20
25
30
40
50
60
80
100
Model
Number
KW
Each/Total
0.9/1.8
0.9/2.7
0.9/2.7
0.9/3.6
0.9/5.4
0.9/5.4
0.9/7.2
Control
KW
Condensing Unit
KW
19.8
25.3
30.4
40.3
51.2
61.2
87.9
Total KW
21.9
28.3
33.3
44.3
57.0
67.0
95.6
122.1
142.6
EER
10.9
11.1
11.3
11.5
11.0
11.2
10.9
10.7
10.9
IPLV
15.5
15.2
16.2
16.4
15.7
16.2
16.1
15.3
16.2
RAUC-C20
RAUC-C25
RAUC-C30
RAUC-C40
RAUC-C50
RAUC-C60
RAUC-C80
RAUC-D10
RAUC-D12
0.25
0.25
0.25
0.40
0.40
0.40
0.50
0.50
0.50
1045
1300
1560
110.9
131.5
0.9/10.8
0.9/10.8
120
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.
10
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Adjustm ent
Factors
Table PAF-1 — Altitude Correction Multiplier for Capacity
Altitude (Ft.)
2,000
0.982
0.983
0.986
4,000
0.960
0.963
0.968
6,000
0.933
0.939
0.947
8,000
0.902
0.911
0.921
10,000
0.866
0.881
0.891
Condensing Unit Only
Condensing Unit / Air Handling Unit Combination
Condensing Unit With Evap.
Table PAF-2 — GlycolAdjustment Factor for 20-60Ton Split Condensing Units with the Remote Chiller (EVP) Option
Percent of Ethylene Glycol by Weight
Leaving
Solution
Temp.
10°F
0%
10%
20%
30%
40%
50%
Freezing Point = -33°F
CAP GPM KW
Freezing Point = 32°F
Freezing Point = 24°F Freezing Point = 15°F
Freezing Point = 5°F
Freezing Point = -12°F
CAP GPM
KW
—
—
—
—
—
—
CAP GPM
KW
—
CAP GPM
KW
.952
.959
.971
.977
.983
.989
CAP GPM
KW
.952
.959
.965
.972
CAP GPM
KW
.945
.959
—
—
—
—
—
—
—
—
—
—
—
—
—
—
.833
.850
.882
.901
.925
.938
.875
.904
.928
.952
.972
.989
.822
.850
.873
.901
.912
.937
.962
.990
.811
.840
.954
.983
.800 1.005 .945
.830 1.029 .953
.855 1.057 .960
.876 1.083 .972
.895 1.101 .978
15°F
—
—
—
20°F
—
—
—
.864 1.008 .965
.893 1.031 .972
.910 1.053 .978
.924 1.066 .984
.937 1.077 .984
.947 1.080 .985
.946 1.079 .985
25°F
.909
.925
.945
.956
.965
.962
.924
.947
.963
.974
.981
.982
.977
.983
.989
.984
.990
.990
30°F
.917 1.009 .978
.931 1.023 .984
.943 1.034 .984
.953 1.039 .985
.951 1.038 .990
35°F
.917
1.115 .978
40°F
1.000 1.000 1.000
1.000 1.000 1.000
1.000 1.000 1.000
.949 1.000 .984
.959 1.005 .990
.957 1.007 .990
.930 1.124 .979
.936 1.129 .979
.935 1.124 .985
45°F
50°F
Table PAF-3 — GlycolAdjustment Factor for 80-120Ton Split Condensing Units with the Remote Chiller (EVP) Option
Percent of Ethylene Glycol by Weight
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 Point = -12°F
Freezing Point = -33°F
Temp.
10°F
15°F
20°F
25°F
30°F
35°F
40°F
45°F
50°F
CAP GPM
KW
—
—
—
—
—
—
CAP GPM
KW
—
CAP GPM
KW
.959
.967
CAP GPM
KW
CAP GPM
KW
CAP GPM
KW
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
.931
.943
.980
.991
.924 1.023 .954
.936 1.035 .962
.948 1.044 .973
.961 1.056 .979
.973 1.068 .984
.982 1.078 .992
.988 1.081 .993
.991 1.083 .993
.992 1.082 .997
.916 1.075 .949
.928 1.085 .957
.941 1.094 .969
.954 1.106 .975
.966 1.117 .980
.975 1.124 .989
.982 1.127 .989
.985 1.126 .990
.985 1.124 .990
.907 1.131 .944
.919 1.140 .952
.933 1.149 .964
.946 1.160 .970
.958 1.173 .976
.968 1.178 .981
.974 1.178 .986
.977 1.178 .986
.978 1.175 .987
—
.998 1.010 1.000
.998 1.014 1.000
.998 1.015 .996
.998 1.016 1.000
.998 1.016 1.000
.997 1.016 .997
.997 1.016 1.000
.955 1.003 .973
.967 1.016 .979
.978 1.030 .984
.987 1.039 .992
.994 1.042 .996
.996 1.045 .997
.997 1.046 1.000
1.000 1.000 1.000
1.000 1.000 1.000
1.000 1.000 1.000
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Data
20 - 60 Tons
Table PD-1 — Gross System Capacity Data — 20-60Ton Condensing Unit with Evaporator Chiller
Condensing
Unit-Nom inal
Tons
Leaving
Chilled
WaterTemp.
Outside Am bientTem perature Entering Condenser (F)
85
95
105
115
Model
Tons
Kw
Tons
Kw
Tons
Kw
Tons
Kw
RAUC C20
With
40
42
45
48
50
16.3
16.8
17.6
18.5
19.0
17.1
17.2
17.4
17.6
17.8
15.5
16.0
16.8
17.6
18.1
18.8
19.0
19.2
19.5
19.6
14.6
15.1
15.9
16.7
17.2
20.9
21.1
21.3
21.6
21.7
13.7
14.2
14.9
15.7
16.2
23.2
23.4
23.7
24.0
24.1
20 Ton
Chiller
20
RAUC C20
With
40
42
45
48
50
16.8
17.4
18.2
19.1
19.7
17.2
17.4
17.6
17.8
17.9
16.0
16.5
17.3
18.2
18.8
19.0
19.2
19.4
19.6
19.8
15.1
15.6
16.4
17.2
17.8
21.0
21.2
21.5
21.8
21.9
14.1
14.6
15.4
16.2
16.7
23.4
23.6
23.8
24.1
24.3
25 Ton
Chiller
RAUC C25
With
40
42
45
48
50
21.0
21.7
22.8
23.9
24.6
21.8
22.0
22.3
22.6
22.8
20.0
20.7
21.7
22.7
23.4
24.1
24.4
24.7
25.0
25.2
18.9
19.5
20.5
21.5
22.2
26.8
27.0
27.4
27.7
27.9
17.8
18.4
19.3
20.3
20.9
29.8
30.1
30.4
30.8
31.0
25 Ton
Chiller
25
RAUC C25
With
40
42
45
48
50
21.9
22.7
23.8
24.9
25.7
22.1
22.3
22.6
22.9
23.1
20.8
21.5
22.6
23.7
24.4
24.4
24.6
24.9
25.3
25.5
19.7
20.3
21.4
22.4
23.1
27.1
27.3
27.6
28.0
28.2
18.4
19.1
20.1
21.1
21.8
30.1
30.3
30.7
31.1
31.3
30 Ton
Chiller
RAUC C30
With
40
42
45
48
50
25.4
26.3
27.5
28.9
29.8
26.1
26.3
26.7
27.1
27.3
24.2
25.0
26.2
27.5
28.3
28.9
29.2
29.6
30.0
30.3
22.9
23.6
24.8
26.0
26.9
32.2
32.5
32.9
33.3
33.6
21.5
22.3
23.4
24.5
25.3
35.8
36.1
36.5
37.0
37.3
30
40
30 Ton
Chiller
RAUC C40
With
40 Ton
Chiller
40
42
45
48
50
34.3
35.4
37.1
38.9
40.1
34.2
34.4
34.8
35.2
35.4
32.6
33.7
35.3
37.0
38.2
37.6
38.0
38.4
39.0
39.2
30.8
31.8
33.5
35.1
36.2
41.8
42.2
42.6
43.2
43.4
28.9
29.9
31.5
33.1
34.2
46.4
46.8
47.4
48.0
48.4
RAUC C40
With
40
42
45
48
50
35.4
36.6
38.4
40.7
41.5
34.4
34.6
35.0
35.6
35.8
33.6
34.8
36.5
38.3
39.5
38.0
38.2
38.8
39.2
39.6
31.8
32.8
33.5
36.2
37.4
42.0
42.4
43.0
43.4
43.8
29.8
30.9
32.5
34.1
35.2
46.8
47.2
47.8
48.4
48.6
50 Ton
Chiller
RAUC C50
With
40
42
45
48
50
42.1
43.4
45.5
47.6
49.1
44.0
44.4
45.0
45.6
46.0
40.0
41.3
43.3
45.3
46.7
48.8
49.2
49.8
50.4
50.8
37.8
39.0
40.9
42.9
44.3
54.0
54.6
55.2
55.8
56.4
35.5
36.7
38.5
40.4
41.7
60.2
60.6
61.4
62.0
62.6
50 Ton
Chiller
50
RAUC C50
With
40
42
45
48
50
43.3
44.7
46.9
49.1
50.6
44.4
44.8
45.4
46.0
46.4
41.1
42.4
44.5
46.7
48.1
49.0
49.6
50.2
50.8
51.2
38.8
40.1
42.1
44.2
45.6
54.4
54.8
55.6
56.4
56.8
36.4
37.6
39.6
41.5
42.9
60.6
61.0
61.8
62.4
63.0
60 Ton
Chiller
RAUC C60
With
40
42
45
48
50
50.0
51.7
54.2
56.7
58.5
52.2
52.8
53.4
54.2
54.8
47.6
49.2
51.6
54.0
55.7
58.0
58.6
59.4
60.2
60.8
45.0
46.5
48.8
51.2
52.8
64.6
65.2
66.0
67.0
67.4
42.4
43.8
46.0
48.3
49.8
71.8
72.4
73.4
74.4
75.0
60 Ton
Chiller
60
RAUC C60
With
40
42
45
48
50
55.1
56.9
59.8
62.7
64.7
53.8
54.2
55.2
56.0
56.6
52.2
54.0
56.7
59.5
61.4
59.6
60.2
61.0
62.0
62.6
49.2
50.9
53.5
56.2
58.0
66.2
66.8
67.8
68.8
69.4
46.1
47.8
50.3
52.8
54.6
73.4
74.2
75.2
76.2
77.0
80 Ton
Chiller
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Data
80 - 120 Tons
Table PD-2 — Gross System Capacity Data — 80-120Ton Condensing Unit with Evaporator Chiller
Condensing
Unit-Nom inal
Tons
Leaving
Chilled
WaterTemp.
Outside Am bient Tem perature Entering Condenser (F)
85
95
105
115
Model
Tons
Kw
Tons
Kw
Tons
Kw
Tons
Kw
RAUC C80
With
40
42
45
48
50
65.1
67.5
71.3
75.1
77.7
73.9
74.7
75.8
77.0
77.8
61.8
64.1
67.7
71.3
73.8
81.9
82.7
84.0
85.2
86.1
58.3
60.5
63.9
67.3
69.6
90.9
91.8
93.1
94.4
95.3
54.6
56.7
59.8
63.1
65.3
100.9
101.8
103.2
104.6
105.6
60Ton
Chiller
RAUC C80
With
40
42
45
48
50
70.5
73.1
77.1
81.2
84.0
75.6
76.4
77.6
78.9
79.7
66.8
69.3
73.1
77.0
79.6
83.7
84.5
85.8
87.2
88.1
62.9
65.3
68.8
72.5
75.0
92.7
93.6
95.0
96.4
97.4
58.8
61.0
64.4
67.9
70.2
102.8
103.7
105.2
106.6
107.6
80
80Ton
Chiller
RAUC C80
With
100Ton
Chiller
40
42
45
48
50
71.4
74.1
78.2
82.4
85.2
75.9
76.7
77.9
79.2
80.1
67.7
70.2
74.1
78.0
80.7
84.0
84.9
86.2
87.5
88.5
63.7
66.1
69.7
73.5
76.0
93.1
94.0
95.4
96.8
97.8
59.5
61.8
65.2
68.7
71.1
103.1
104.0
105.5
107.0
108.0
RAUC D10
With
40
42
45
48
50
87.1
90.3
96.4
97.5
82.6
85.6
90.3
95.0
98.3
106.6
107.7
109.4
111.2
112.4
77.8
80.6
85.0
89.6
92.6
118.0
119.1
121.0
122.8
124.1
72.7
75.4
79.6
83.8
86.7
130.6
131.8
133.7
135.6
136.9
80Ton
95.2
99.1
Chiller
100.2
103.7
100.8
101.9
RAUC D10
With
100Ton
Chiller
40
42
45
48
50
88.6
91.9
96.9
98.0
83.9
87.1
107.1
108.2
110.0
111.8
113.1
79.0
73.9
86.5
91.1
94.3
119.7
118.5
121.6
123.5
124.7
73.9
76.6
80.9
85.2
88.2
131.1
132.4
134.3
136.3
137.6
100
96.9
99.7
91.8
102.1
105.6
101.4
102.6
96.7
100.0
RAUC D10
With
120Ton
Chiller
40
42
45
48
50
89.4
92.7
97.9
103.1
106.7
97.2
98.3
100.0
101.8
102.9
84.7
87.9
92.7
97.7
101.1
107.4
108.5
110.4
112.2
113.5
79.7
82.7
87.3
92.0
95.2
118.8
120.0
121.9
123.8
125.1
74.5
77.3
81.6
86.0
89.1
131.4
132.7
134.6
136.6
138.0
RAUC D12
With
100Ton
Chiller
40
42
45
48
50
102.8
106.5
112.3
118.2
122.2
114.5
115.7
117.6
119.4
120.7
97.4
101.0
106.4
112.0
115.9
126.9
128.2
130.2
132.2
133.5
91.7
95.1
100.3
105.6
109.2
140.8
142.1
144.2
146.3
147.8
85.7
88.9
93.8
98.8
102.1
156.1
157.5
159.7
161.9
163.4
120
RAUC D12
With
120Ton
Chiller
40
42
45
48
50
104.1
108.0
113.9
120.0
124.1
114.9
116.2
118.1
120.0
121.3
98.6
102.3
107.9
113.7
117.6
127.3
128.7
130.7
132.7
134.1
92.9
96.3
101.6
107.1
110.8
141.2
142.6
144.7
146.9
148.4
86.8
90.0
156.6
158.0
160.3
162.5
164.1
95.0
100.1
103.6
Notes:
Table PD-3 – Evapo rator ChillerWater Pressure Drop
— All capacites are at 10°F Delta water tem p. Kw is
total of all com pressors, but does not include
condenser fan, water pum p and control power.
— 25’ line loss is included.
20 Ton
GPM
25 Ton
PD
30 Ton
GPM
40 Ton
50 Ton
GPM
PD
GPM
PD
GPM
PD
4.1
5.8
7.7
9.9
12.3
15.0
21.1
28.1
–
PD
4.0
5.4
6.9
8.6
10.4
14.7
19.6
25.1
–
25.0
30.0
35.0
40.0
45.0
50.0
60.0
70.0
–
3.8
5.4
7.2
9.2
11.5
14.0
19.6
26.1
–
30.0
35.0
40.0
45.0
50.0
60.0
70.0
80.0
–
3.7
5.0
6.4
7.9
9.6
13.5
18.1
23.2
–
35.0
40.0
45.0
50.0
60.0
70.0
80.0
90.0
100.0
2.1
2.7
3.4
4.1
5.8
7.7
9.9
12.3
15.0
50.0
60.0
70.0
80.0
90.0
100.0
120.0
140.0
–
60.0
70.0
80.0
90.0
100.0
120.0
140.0
160.0
–
GPM = Gallons Per Minute
PD = Pressure Drop (Feet of Water)
60Ton
80Ton
100Ton
120Ton
GPM
PD
GPM
PD
GPM
PD
GPM
PD
80.0
90.0
5.6
7.0
100.0
120.0
140.0
160.0
180.0
200.0
240.0
–
4.5
6.5
8.7
11.2
14.1
17.2
24.8
–
120.0
140.0
160.0
180.0
200.0
240.0
280.0
320.0
360.0
3.2
4.3
140.0
160.0
180.0
200.0
240.0
280.0
320.0
360.0
400.0
3.2
4.1
100.0
120.0
140.0
160.0
180.0
200.0
–
8.5
5.6
5.2
12.0
15.9
20.5
25.5
31.0
–
7.0
8.5
12.2
16.3
21.0
26.0
6.3
9.0
12.0
15.8
19.7
24.0
–
–
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Perform ance
Data — 60 Hz
20 & 25 Ton
Condensing Units
Chart PD-1 — 20Ton Condensing Unit Performance — RAUC-C20 (60 HZ)
Chart PD-2 — 25Ton Condensing Unit Performance — RAUC-C25 (60 HZ)
14
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Perform ance
Data — 50 Hz
RAUC-C20 & C25
Condensing Units
Chart PD-3 — 20Ton Condensing Unit Performance — RAUC-C20 (50 HZ)
Chart PD-4 — 25Ton Condensing Unit Performance — RAUC-C25 (50 HZ)
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Perform ance
Data — 60 Hz
30 & 40 Ton
Condensing Units
Chart PD-5 — 30Ton Condensing Unit Performance — RAUC-C30 (60 HZ)
Chart PD-6— 40Ton Condensing Unit Performance — RAUC-C40 (60 HZ)
16
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Perform ance
Data — 50 Hz
RAUC-C30 & C40
Condensing Units
Chart PD-7 — 30Ton Condensing Unit Performance — RAUC-C30 (50 HZ)
Chart PD-8 — 40Ton Condensing Unit Performance — RAUC-C40 (50 HZ)
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Perform ance
Data — 60 Hz
50 & 60 Ton
Condensing Units
Chart PD-9 — 50Ton Condensing Unit Performance — RAUC-C50 (60 HZ)
Chart PD-10— 60Ton Condensing Unit Performance — RAUC-C60 (60 HZ)
18
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Perform ance
Data — 50 Hz
RAUC-C50 & C60
Condensing Units
Chart PD-11 — 50Ton Condensing Unit Performance — RAUC-C50 (50 HZ)
Chart PD-12 — 60Ton Condensing Unit Performance — RAUC-C60 (50 HZ)
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Perform ance
Data — 60 Hz
80 & 100 Ton
Condensing Units
Chart PD-13 — 80Ton Condensing Unit Performance — RAUC-C80 (60 HZ)
Chart PD-14 — 100Ton Condensing Unit Performance — RAUC-D10 (60 HZ)
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RAUC-C80 & D10
Condensing Units
Perform ance
Data — 50 Hz
Chart PD-15 — 80Ton Condensing Unit Performance — RAUC-C80 (50 HZ)
Chart PD-16 — 100Ton Condensing Unit Performance — RAUC-D10 (50 HZ)
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120 Ton
Condensing Units
Perform ance
Data — 60 Hz
Chart PD-17 — 120Ton Condensing Unit Performance — RAUC-D12 (60 HZ)
Chart PD-18 – EVP Performance Curve – 20 through 40Tons
20-60 Ton
Evaporator Chiller
Option
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Perform ance
Data — 50 Hz
RAUC-D12
Condensing Units
Chart PD-19 — 120Ton Condensing Unit Performance — RAUC-D12 (50 HZ)
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Perform ance
Data — 60 HZ
20-60 Ton Evaporator
Chiller Option
Chart PD-20 — EVP Performance Curve — 50 and 60Tons
Chart PD-21 — EVP Performance Curve — 80 through 120Tons
80-120 Ton
Evaporator Chiller
Option
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Controls
20-60 Tons
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
ofTrane’s proven and patented
• 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.
Standard Options
20 through 60-Ton Condensing Units
System Control Options
Select one of the four following control
options to meet your application
requirements.
Miscellaneous Options
20 through 60-Ton Condensing Units
Select the miscellaneous options to meet
your project requirements.
• No System Control provides 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 Volume 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
FROSTAT™. FROSTAT 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 HoneywellW7100G
controller. This water chiller 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 60-
ton sizes.
• 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 overcurrent or short circuit
protection is provided for the unit by this
switch.
• Hot Gas Bypass Valve — 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: FROSTAT is standard on VAV units
and is recommended in place of hot gas
bypass).
Low Ambient Control Option
• Standard — Unit start-up and operation
down to approximately 40°F at
thermostat, thus generating the loading
demand signal to the HoneywellW973
constant volume controller.
• Supply AirVAV Control provides a
HoneywellW7100A control system. This
option is for use with shut-offVAV or
minimum compressor load.
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Controls
80-120 Ton
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 chiller
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 six capacity
steps on 80-120 ton models.
Standard Options
80 through 120-Ton Condensing Units
Miscellaneous Options
80 through 120-Ton Condensing Units
Select the options to meet project
requirements.
System Control Options
Select one of the three following control
options to meet your application
requirements.
• Hot Gas Bypass Valve 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-inch
SAE flare connection to suction line for
external equalizer line and 115-volt
electrical connection for the integral liquid
line solenoid valve. (Note: FROSTAT is
standard on VAV 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 each refrigerant circuit.
Gauges mount adjacent to compressors.
• Supply AirVAV includes a multi-step,
demand oriented, microprocessor-based
HoneywellW7100 discharge air
controller. W7100 control is designed for
shut-offVAV systems. Average discharge
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.
Low Ambient Control Option
• Standard — Unit start-up and
operation down to approximately 40°F
• No System Control option does not
provide any temperature control
at minimum compressor load.
• Low Ambient — Factory or field-
installed 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.
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
26
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Electrical
Data
Table ED-1 — Condensing Units — 60 Hz
Unit Characteristics
Minimum
Allowable
Voltage
Utilization Range
Max. Overcurrent Recommended Dual
Number
Of
Compressors
Nominal
Tons
Model
Number
Voltage/Start
Characteristics
Circuit Ampacity
Protection Device
(2), (4)
Element Fuse Size
(3), (4)
(1), (4)
RAUC-C20E
RAUC-C20F
RAUC-C204
RAUC-C205
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
101
101
44
125
125
60
125
125
50
2
2
2
2
20
25
30
40
50
60
80
100
35
45
40
RAUC-C25E
RAUC-C25F
RAUC-C254
RAUC-C255
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
129
129
56
175
175
80
150
150
70
2
2
2
2
45
60
60
RAUC-C30E
RAUC-C30F
RAUC-C304
RAUC-C305
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
148
148
65
200
200
90
175
175
80
2
2
2
2
52
70
60
RAUC-C40E
RAUC-C40F
RAUC-C404
RAUC-C405
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
192
192
84
225
225
100
80
225
225
90
4
4
4
4
67
80
RAUC-C50E
RAUC-C50F
RAUC-C504
RAUC-C505
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
244
244
106
84
300
300
125
100
300
300
125
90
4
4
4
4
RAUC-C60E
RAUC-C60F
RAUC-C604
RAUC-C605
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
282
282
123
98
300
300
125
110
300
300
125
110
4
4
4
4
RAUC-C80E
RAUC-C80F
RAUC-C804
RAUC-C805
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
373
373
162
129
400
400
175
150
400
400
175
150
6
6
6
6
RAUC-D10E
RAUC-D10F
RAUC-D104
RAUC-D105
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
472
472
206
164
500
500
225
175
500
500
225
175
8
8
8
8
RAUC-D12E
RAUC-D12F
RAUC-D124
RAUC-D125
200/60/3XL
230/60/3XL
460/60/3XL
575/60/3XL
180-220
207-253
414-506
517-633
548
548
239
190
600
600
250
200
600
600
250
200
8
8
8
8
120
Notes:
1. Minim um circuit am pacity (MCA) is 125 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
2. Maxim um Overcurrent Protection Device perm itted by NEC 440-22 is 225 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
3. Recom m ended dual elem ent fuse size is 150 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
4. Local codes m ay take precedence.
Table ED-2— Condensing Units — 50 Hz
Unit Characteristics
Allowable
Voltage
Utilization Range
Minimum
Circuit Ampacity
(1), (4)
Max. Overcurrent Recommended Dual
Number
Of
Compressors
Nominal
Tons
Model
Number
Voltage/Start
Characteristics
Protection Device
(2), (4)
Element Fuse Size
(3), (4)
20
25
30
40
50
60
80
100
RAUC-C20
RAUC-C25
RAUC-C30
RAUC-C40
RAUC-C50
RAUC-C60
RAUC-C80
RAUC-D10
RAUC-D12
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
380/415/50/3XL
360-440
360-440
360-440
360-440
360-440
360-440
360-440
360-440
360-440
42
55
50
80
50
70
2
2
2
4
4
4
6
8
8
64
90
80
80
90
90
104
122
159
201
237
125
125
175
225
250
125
125
175
225
250
120
Notes:
1. Minim um circuit am pacity (MCA) is 125 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
2. Maxim um Overcurrent Protection Device perm itted by NEC 440-22 is 225 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
3. Recom m ended dual elem ent fuse size is 150 percent of the RLA of one com pressor m otor plus the total RLA of the rem aining m otors.
4. Local codes m ay take precedence.
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Electrical
Data
Table ED-3 — Compressor Motor and Condenser Fan Data — 60 Hz
Nominal
Tons
Compressor 1A (1)
Compressor 1B
Compressor 2A
Compressor 2B
Condenser Fans
Model
Voltage
RLA
LRA
RLA
LRA
RLA
LRA
RLA
LRA
Qty.
FLA
200 XL
230 XL
460 XL
41.4
41.4
18.1
269
251
117
41.4
41.4
18.1
269
251
117
—
––
—
—
––
—
—
––
—
—
––
—
2
2
2
4.1
4.1
1.8
20
RAUC-C20
575 XL
14.4
94
14.4
94
—
—
—
—
2
1.4
200 XL
230 XL
460 XL
575 XL
41.4
41.4
18.1
14.4
269
251
117
94
60.5
60.5
26.3
21.0
409
376
178
143
—
––
—
—
—
––
—
—
—
––
—
—
—
––
—
—
3
3
3
3
4.1
4.1
1.8
1.4
25
30
40
50
60
RAUC-C25
RAUC-C30
RAUC-C40
RAUC-C50
200 XL
230 XL
460 XL
575 XL
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
—
––
—
—
—
––
—
—
—
––
—
—
—
––
—
—
3
3
3
3
4.1
4.1
1.8
1.4
200 XL
230 XL
460 XL
575 XL
41.4
41.4
18.1
14.4
269
251
117
94
41.4
41.4
18.1
14.4
269
251
117
94
41.4
41.4
18.1
14.4
269
251
117
94
41.4
41.4
18.1
14.4
269
251
117
94
4
4
4
4
4.1
4.1
1.8
1.4
200 XL
230 XL
460 XL
575 XL
41.4
41.4
18.1
14.4
269
251
117
94
60.5
60.5
26.3
21.0
409
376
178
143
41.4
41.4
18.1
14.4
269
251
117
94
60.5
60.5
26.3
21.0
409
376
178
143
6
6
6
6
4.1
4.1
1.8
1.4
200 XL
230 XL
460 XL
575 XL
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
6
6
6
6
4.1
4.1
1.8
1.4
RAUC-C60
Model
Nominal
Tons
Compressor 1A/2A(2) Compressor 1B/2B
RLA
Compressor 1C/2C
RLA
Compressor 1D/2D Condenser Fans
RLA
Voltage
LRA
RLA
LRA
LRA
LRA
Qty.
FLA
200 XL
230 XL
460 XL
575 XL
41.4
41.4
18.1
14.4
269
251
117
94
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
—
––
—
—
—
––
—
—
8
8
8
8
4.1
4.1
1.8
1.4
80
RAUC-C80
RAUC-D10
RAUC-D12
200 XL
230 XL
460 XL
575 XL
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
41.4
41.4
18.1
14.4
269
251
117
94
41.4
41.4
18.1
14.4
269
251
117
94
12
12
12
12
4.1
4.1
1.8
1.4
100
200 XL
230 XL
460 XL
575 XL
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
60.5
60.5
26.3
21.0
409
376
178
143
12
12
12
12
4.1
4.1
1.8
1.4
120
Notes:
1. Value given is per com pressor on 20-60 ton units.
2. For 80 through 120-ton units, electrical values shown are for each com pressor.
Table ED-4 — Compressor Motor and Condenser Fan Data — 50 Hz
Nominal
Tons
Compressor 1A (1)
Compressor 1B
Compressor 2A
Compressor 2B
Condenser Fans
Model
Voltage
380/415
380/415
380/415
380/415
380/415
380/415
RLA
17.2
17.2
26.2
17.2
17.2
26.2
LRA
110
110
174
110
110
174
RLA
LRA
RLA
LRA
RLA
LRA
Qty.
FLA
1.7
1.7
1.7
1.7
1.7
1.7
20
25
30
40
50
RAUC-C20
RAUC-C25
RAUC-C30
RAUC-C40
RAUC-C50
RAUC-C60
17.2
110
—
—
—
—
2
3
3
4
6
6
26.2
26.2
17.2
174
174
110
—
—
—
—
—
—
—
—
—
—
—
—
26.2
26.2
174
174
—
—
—
—
60
Nominal
Tons
—
—
—
—
Compressor 1A/2A(2) Compressor 1B/2B
Compressor 1C/2C
Compressor 1D/2D Condenser Fans
Model
Voltage
380/415
380/415
380/415
RLA
LRA
174
174
174
RLA
26.2
26.2
26.2
LRA
174
174
174
RLA
26.2
17.2
LRA
174
110
RLA
LRA
Qty.
FLA
80
RAUC-C80
RAUC-D10
RAUC-D12
17.2
—
—
8
1.7
100
26.2
26.2
17.2
26.2
110
174
12
12
1.7
120
26.2
174
1.7
Notes:
1. Value given is per com pressor on 20-60 ton units.
2. For 80 through 120-ton units, electrical values shown are for each com pressor.
28
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Dim ensional
Data
20 Ton
Condensing Unit
Figure DD-1 — Air-Cooled Condensing Unit — RAUC 20Ton
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Dim ensional
Data
25 Ton
Condensing Unit
Figure DD-2 — Air-Cooled Condensing Unit — RAUC 25Ton
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Dim ensional
Data
30 Ton
Condensing Unit
Figure DD-3 — Air-Cooled Condensing Unit — RAUC 30Ton
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Dim ensional
Data
40 Ton
Condensing Unit
Figure DD-4 — Air-Cooled Condensing Unit — RAUC 40Ton
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Dim ensional
Data
50 Ton
Condensing Unit
Figure DD-5 — Air-Cooled Condensing Unit — RAUC 50Ton
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Dim ensional
Data
60 Ton
Condensing Unit
Figure DD-6 — Air-Cooled Condensing Unit — RAUC 60Ton
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Dim ensional
Data
80 Ton
Condensing Unit
Figure DD-7 — Air-Cooled Condensing Unit — RAUC 80Ton
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 custom ers.
2. Dim ensional tolerance is ±1/8”.
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Dim ensional
Data
100 Ton
Condensing Unit
Figure DD-8 — Air-Cooled Condensing Unit — RAUC 100Ton
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 custom ers.
2. Dim ensional tolerance is ±1/8”.
36
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Dim ensional
Data
120 Ton
Condensing Unit
Figure DD-9 — Air-Cooled Condensing Unit — RAUC 120Ton
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 custom ers.
2. Dim ensional tolerance is ±1/8”.
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Dim ensional
Data
20 and 25 Ton
Evaporator Chiller
Figure DD-10 — 20 and 25-Ton Evapo rator Chiller
Evaporator Flange Connection.
Flange adapter and O-ring supplied byTrane.
NOTES:
1. DIMENSIONAL TOLERANCE IS ± 1/8”.
2. ALLOW 6’1” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR
38
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Dim ensional
Data
30 Ton
Evaporator Chiller
Figure DD-11 — 30-Ton Evaporator Chiller
Evaporator Flange Connection.
Flange adapter and O-ring supplied byTrane.
NOTES:
1. DIMENSIONAL TOLERANCE IS ± 1/8”.
2. ALLOW 6’2” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR
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Dim ensional
Data
40 Ton
Evaporator Chiller
Figure DD-12 — 40-Ton Evaporator Chiller
NOTES:
1. DIMENSIONAL TOLERANCE IS ± 1/8”.
2. ALLOW 6’2” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR
40
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Dim ensional
Data
50 Ton and 60 Ton
Evaporator Chiller
Figure DD-13 — 50 and 60-Ton Evaporator Chiller
NOTES:
1. DIMENSIONAL TOLERANCE IS ± 1/8”.
2. ALLOW 8’0” TUBE REMOVAL CLEARANCE EITHER END OF EVAPORATOR
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Dim ensional
Data
80 Ton
Evaporator Chiller
Figure DD-14 — 80-Ton Evaporator Chiller
Evaporator Flange Connection.
Flange adapter and O-ring supplied byTrane
42
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Dim ensional
Data
100 Ton
Evaporator Chiller
Figure DD-15 — 100-Ton Evaporator Chiller
Evaporator Flange Connection.
Flange adapter and O-ring supplied byTrane
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Dim ensional
Data
120 Ton
Evaporator Chiller
Figure DD-16 — 120-Ton Evaporator Chiller
Evaporator Flange Connection.
Flange adapter and O-ring supplied byTrane
44
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Weights
Table W-1 — 20-60Ton Air-Cooled Condensing Units
Operating
Weight On Isolator At Mounting Locations (Lbs.)
Loc. 3 Loc. 4 Loc. 5
AL AL
Nominal
Tons
20
Weight (Lbs.)
Loc. 1
AL
Loc. 2
CU
Loc. 6
Model
AL
CU
CU
559
602
640
523
643
722
AL
398
421
635
457
562
618
CU
404
436
364
528
601
684
CU
317
338
403
506
579
666
AL
CU
—
AL
CU
—
RAUC-C20
RAUC-C25
RAUC-C30
RAUC-C40
RAUC-C50
RAUC-C60
1522
1640
1824
2769
3148
3480
1720
1842
2115
3102
3540
4050
509
555
580
480
586
640
439
467
708
501
620
703
345
378
291
473
536
590
270
286
318
450
514
570
—
—
—
—
25
—
—
30
—
—
—
—
40
466
485
540
533
559
646
443
465
522
511
538
629
50
60
Note:
Shipping weight is approxim ately equal to operating weight.
AL = Alum inum Coil Fin
CU = Copper Coil Fin
Figure W-1 — 20-30Ton Air-Cooled Condensing Units
Figure W-2 — 40-60Ton Air-Cooled Condensing Units
Top View (Mounting Locations)
Table W-2 — 80-120Ton Air Condensing Units
Nominal
Tons
Coil
Fin
Operating
Weight (Lbs.)
Weight On Isolator At Mounting Location (Lbs.)
Model
Loc. 1
Loc.2
Loc. 3
Loc.4
Loc. 5
Loc. 6
Loc. 7
Loc. 8
80
100
120
RAUC-C80
RAUC-C80
AL
CU
5500
6099
855
926
557
629
835
909
544
618
830
906
541
616
810
890
528
605
RAUC-D10
RAUC-D10
AL
CU
6472
7272
1010
1104
656
762
983
1083
639
738
979
1080
636
736
951
1058
618
721
RAUC-D12
RAUC-D12
AL
CU
7000
8199
1100
1241
694
838
1075
1225
678
827
1071
1222
676
825
1046
1206
660
815
Table W-3 — Evaporative Chillers 20
through 120Ton
Figure W-3—80-120Ton Air-Cooled Condensing Units
Nominal
Tons
Operating
Weight (Lbs.)
Shipping
Weight (Lbs.)
20
25
360
360
280
280
360
380
430
470
875
960
1150
30
470
40
480
50
580
60
600
80
1205
1230
1535
100
120
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Mechanical
Specifications
Unit Control
Condenser Fan and Motors
20 through 60-ton
Condensing Units
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.
Vertical 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.
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 galvanized steel frame
with 14 and 16-gauge galvanized 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-consecutive-
hour salt spray application in accordance
with standard ASTM B117.
Condenser Coil
Condenser coils have configured
aluminum fins mechanically bonded to
3/8-inch OD copper tubing.Two
refrigerant circuits with separate
subcooling circuits are standard. Coils
are factory-tested at 450 psig air pressure
underwater and vacuum dehydrated.
80 through 120-ton
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 ASTM B117. Decorative
louvered panels provide factory standard
condenser coil protection.
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.
Compressor
Trane 3-D™ Scroll compressors have
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 which 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.
Trane 3-D Scroll compressor includes
centrifugal oil pump, oil level sightglass
and oil charging valve.
Compressors
Trane 3-D® Scroll compressors have a
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 which 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.
Trane 3-D Scroll compressor includes
centrifugal oil pump, oil level sightglass
and oil charging valve.
20 through 120-ton
Evaporator 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.
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.
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 field-
Refrigerant 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.
installed isolation solenoid valve on the
liquid line near the evaporator.
46
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Literature Order Number
File Number
SS-PRC005-EN
PL-UN-SS-PRC005-EN-11-2001
SS-PRC005-EN-07-2001
Webb/Mason
Trane
Supersedes
A business of American
Standard Companies
Stocking Location
For more information contact your
local district office, or e-mail us at
Trane has a policy of continuous product and product data improvement and reserves the right to change
design and specifications without notice.
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