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CAUJ-C20
Trane CAUJ-C20 User Manual
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CAUJ-SVX0
1E-EN
1
1
Unit
Dimensions
Figure
4.
Air-cooled
condenser
—
20
ton
4
"
C
O
N
D
U
I
T
M
A
I
N
P
O
W
E
R
1 3
/4" KO
L
O
W
VO
L
T
A
G
E
(
3
0
V
M
A
X
.
)
3
7
1
1
/
1
6
"
3
3
/
8
"
CON
T
R
O
L
P
A
N
E
L
3
5
1
3
/
1
6
"
31
1
/
4
"
29
1
/
4
"
4
1
/
2
"
2
5
/
8
"
5
5
/
1
6
"
5
3
/
8
"
3
3
/
8
"
1
/
2
"
X
4
K
O
(
1
1
5
V
)
1/2
"
X
2
K
O
(
1
1
5
V
)
4 3/
8
"
6
1
/
8
"
8
8
5
/
1
6
"
7
4
1
/
4
"
60"
11
1
/
2
"
1
8
"
1 1/4" x
4 1/2"
S
L
O
T
F
O
R
1
1
5
VOL
T CONTROL
4
"
L
I
N
E
V
O
L
T
A
G
E
A
C
C
E
S
S
7
8
"
5
3
/
1
6
"
1
1
3
/
1
6
"
L
O
W
A
M
B
I
E
N
T
D
A
M
P
E
R
(
S
E
E
N
O
T
E
2
)
FAN GRI
LLE
F
A
N
G
R
I
L
L
E
C
O
N
T
R
O
L
P
A
N
E
L
(
S
E
E
D
E
T
A
I
L
A
)
26
13/16"
C
O
N
T
R
O
L
B
O
X
B
O
T
T
O
M
(SEE
D
E
T
A
I
L
A
)
1
3
"
6
1
/
4
"
5
7
5
/
8
"
1
1
/
4
"
8
"
7
2
1
/
2
"
3/4"
X
4
M
T
G
H
O
L
E
S
D
O
O
R
4
3
1
/
4
"
W
/
180
DEG
S
W
I
N
G
2
1
4
3
F
R
O
N
T
(
S
E
E
N
O
T
E
3
F
O
R
A
L
L
M
I
N
.
CLEARANC
E
)
N
O
T
E
S
:
1. SEE CO
NNECT
I
O
N
D
R
A
W
I
N
G
F
O
R
C
O
N
N
E
C
T
I
O
N
L
O
C
A
T
I
O
N
A
N
D
S
I
Z
E
S
.
2
.
L
O
W
A
M
B
I
E
N
T
D
A
M
P
E
R
O
N
L
Y
C
O
M
E
S
W
I
T
H
S
E
L
E
C
T
E
D
U
N
I
T
.
3
.
F
R
O
N
T
O
F
U
N
I
T
C
L
E
A
R
A
N
C
E
7
2
"
.
B
A
C
K
O
F
U
N
I
T
C
L
E
A
R
A
N
C
E
7
2
"
.
LE
F
T
A
N
D
R
I
G
H
T
S
I
D
E
O
F
U
N
I
T
C
L
E
A
R
A
N
C
E
4
2
"
.
D
E
T
A
I
L
A
C
O
N
T
R
O
L
B
O
X
B
O
T
T
O
M
D
D
i
i
m
m
e
e
n
n
s
si
i
o
o
n
n
s
s
a
a
n
n
d
d
W
W
e
e
i
i
g
g
h
h
t
t
s
s
10
12
Table of Contents
Default Chapter
1
Split System
1
Important Environmental Concerns
2
Important Responsible Refrigerant Practices
2
Table of Contents
4
Model Number Description
5
General Information
6
Unit Inspection
6
Nameplates
6
Unit Nameplate
6
Unit Description
6
General Data
8
Dimensions and Weights
9
Unit Clearances
9
Unit Dimensions
11
Unit Weights
25
Installation Mechanical
26
Location Requirements
26
Isolation
26
Foundation
26
Leveling the Unit
26
Rigging and Lifting
26
Unit Mounting
29
Unit Isolation
30
Neoprene Isolators
30
Units)
30
Spring Isolators
31
Units)
31
Installation
32
General Unit Requirements
32
Refrigerant Piping Requirements
32
Refrigerant Piping Components
32
Refrigerant Piping
34
Final Refrigerant Pipe Connections
35
Brazing Procedures
35
Leak Testing Procedure
36
Installation Electrical
38
Electrical
38
Wiring Requirements
39
Main Electrical Power Requirements
39
Field Installed Control Wiring Requirements
39
Field Installed Power Wiring
39
Power Wire Sizing and Protection Devices
40
Field Installed Control Wiring
41
Operating Principles
42
Component Locations
42
Condenser Fans
42
Unit Operation
42
Condenser Fans
43
Low Ambient Dampers
44
Low Ambient Thermostats
44
Pre-Start
45
System Evacuation Procedures
45
Standing Vacuum Test
46
Voltage Imbalance
46
Electrical Phasing
47
Start-Up
48
Verifying Proper Condenser Fan
48
Rotation
48
All Fans Are Rotating Backwards
48
Some Fans Are Rotating
48
Backwards
48
Low Ambient Damper Adjustment (Factory or Field Installed)
48
Charging the System
49
Maintenance
52
Monthly Maintenance
52
Air Handling Equipment
52
Condensing Unit
52
Coil Cleaning
53
Microchannel Condenser Coil Repair and Replacement
53
Fall Restraint - Condenser Roof
53
Warranty and Liability Clause
55
Commercial Equipment Rated 20 Tons and Larger and Related Accessories
55
Products Covered
55
Wiring Diagrams
56
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Trane CAUJ-C20 Specifications
General
Brand
Trane
Model
CAUJ-C20
Category
Air Conditioner
Language
English
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