Trane CTA 7 Series, 090A***A – 60 HZ, 120A***A – 60 HZ, 120B***A – 60 HZ, 180B***A – 60 HZ Installation Owner Diagnostics
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Installation
Owner
Diagnostics
Split System Cooling Condensers
Model CTA 7 1/2 to 15 Tons
Models
CTA
090A***A
120A***A
120B***A
180B***A
“A” and later Design Sequence
– 60 HZ
– 60 HZ
– 60 HZ
– 60 HZ
SS-SVN11A-EN
Notice
Overview of Manual
Note: One copy of this document
ships inside each unit and is customer
property. It must be retained by the
unit’s maintenance personnel.
This booklet describes proper installation, operation, and maintenance procedures for air cooled systems. By
carefully reviewing the information
within this manual and following the
instructions, the risk of improper
operation and/or component damage
will be minimized.
It is important that periodic maintenance be performed to help assure
trouble free operation. A maintenance
schedule is provided at the end of this
manual. Should equipment failure
occur, contact a qualified service
organization with qualified, experienced HVAC technicians to properly
diagnose and repair this equipment.
NOTICE:
Warnings and Cautions appear at
appropriate sections throughout this
manual. Read these carefully.
WARNING– Indicates a
potentially hazardous situation
which, if not avoided, could
result in death or serious injury.
CAUTION – Indicates a
potentially hazardous situation
which, if not avoided, may result
in minor or moderate injury. It
may also be used to alert against
unsafe practices.
CAUTION – Indicates a situa-
tion that may result in equipment
or property-damage-only accidents.
IMPORTANT NOTE: All phases of this
installation must comply with the
NATIONAL, STATE & LOCAL CODES.
In addition to local codes, the installation must conform with National Electric Code -ANSI/NFPA NO. 70 LATEST
REVISION.
© 2004 American Standard Inc. All rights reserved. SS-SVN11A-EN
Note: Do Not release refrigerant
to the atmosphere! If adding or
removing refrigerant is required, the
service technician must comply with
all federal, state, and local laws.
Contents
Installation/Startup/Commissioning
Model Number Description 4
Unit Dimensions
Electrical Data
Unit Inspection 9
Initial Leak Test
Lifting Recommendations
Clearances 10
Unit Mounting 10
Refrigerant Piping 10
Leak Check 12
System Evacuation 12
Refrigeration Charging 12
Electrical Wiring 13
Low Voltage Wiring 14
4
5
8
9
9
SS-SVN11A-EN 3
Refrigeration Schematic
Installation Checklist 21
Sequence of Operation
20
22
Maintenance 23
Warranty
25
Model Number
Description
Model Number Description
All products are identified by a multiple-character model number that precisely identifies a particular type of
unit. An explanation of the alphanumeric identification code is provided
below. Its use will enable the owner/
operator, installing contractors, and
service engineers to define the operation, specific components, and other
options for any specific unit.
When ordering replacement parts or
requesting service, be sure to refer to
the specific model number, serial
number, and DL number (if applicable) stamped on the unit nameplate.
Split System Condensing Model Nomenclature
C T A 0 9 0 A 1 0 0 A A
1 2 3 4 5 6 7 8 9 10 11 12
Digits 1,2,3 - Product Type
CTA = Remote Air-Cooled Condenser
Digits 4,5,6 - Nominal Gross
Cooling Capacity (MBh)
090 = 090 MBh-used with
3 & 5T SCRH
120 = 120 MBh - used with
7.5 & 10T SCRH
180 = 180 MBh - used with
12 & 15T SCRH)
Digits 7 - Major Development
Sequence
A = 1 Refrig Cir.(3, 5, 7.5T SCRH)
B = 2 Refrig Cir. (10, 12, 15T SCRH)
Digits 8 - Electrical
Characteristics
1 = 208-230/60/1
2 = 460/60/1
8 = 575/60/1
Digits 9,10 - Factory Installed
Options
00 = Packed Stock
0A = Coated Coil
Digits 11 - Minor Design Sequence
A = First
Digits 12 - Service Digit
A = First
4 SS-SVN11A-EN
Figure 1 — CTA090A
Unit
Dimensions
Figure 2 — CTA120A
SS-SVN11A-EN 5
Figure 3 — CTA120B
Unit
Dimensions
6 SS-SVN11A-EN
Figure 4 — CTA180B
Unit
Dimensions
SS-SVN11A-EN 7
Electrical
Data
Table 1: CTA Unit Electrical Data
Basic Unit Characteristics Outdoor Fan Motor
Model
Number
CTA090A1 208-230/60/1 187-254 15 15 1 1/2 3.1 8.1
CTA090A2 460/60/1 414-506 15 15 1 1/2 1.6 3.7
CTA090A8 575/60/1 518-632 15 15 1 1/2 1.2 3.0
CTA120A1 208-230/60/1 187-254 15 15 1 1 6.0 17.0
CTA120A2 460/60/1 414-506 15 15 1 1 2.7 7.0
CTA120A8 575/60/1 518-632 15 15 1 1 2.0 5.7
CTA120B1 208-230/60/1 187-254 15 15 1 1 6.0 17.0
CTA120B2 460/60/1 414-506 15 15 1 1 2.7 7.0
CTA120B8 575/60/1 518-632 15 15 1 1 2.0 5.7
CTA180B1 208-230/60/1 187-254 15 15 2 1/2 3.1 8.1
CTA180B2 460/60/1 414-506 15 15 2 1/2 1.6 3.7
CTA180B8 575/60/1 518-632 15 15 2 1/2 1.2 3.0
Electrical
Characteristics
Allowable
Voltage
Range
Minimum
Circuit
Ampacity
Maximum
Fuse
Size
Qty. HP
Amps
FLA
Amps
LRA
8 SS-SVN11A-EN
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