Trane CAUC-C20, Installation Operation & Maintenance

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General Information
Model Number Description
All Trane 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, in-
stalling contractors, and service engineers to define the op-
eration, specific components, and other options for any spe-
cific 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 name-
plate.
Sample Model No.: CAUC - C60 4 - 2 A 1 0 H, etc.
Digit No.: 1 2 3 4 5,6,7 8 9 10 11 12 13 +
Digit 1 - Unit Type Digit 8 - Power Supply Digit 11 - Ambient Control
C=Condenser G = 200/230/60/3 XL 0 = Standard
4 = 460/60/3 XL 1 = 0
o
F
Digit 2 - Condenser 5 = 575/60/3 XL
A = Air Cooled Digit 12 - Agency Approval
Digit 9 - Condenser Circuit 0 = None
Digit 3 - Air Flow
1 = Single 3 = UL / CSA
U = Up Flow 2 = Dual
Digit 13 - Miscellaneous Options, etc.
Digit 4 - Development Sequence Digit 10 - Design Sequence H = Copper Fins
C = Third J = Disconnect Redesign 1 = Spring Isolators
2 = Rubber Isolators
Digits 5, 6, 7 - Nominal Capacity 9 = Packed Stock
C20 = 20 Tons
C25 = 25 Tons
C30 = 30 Tons
C40 = 40 Tons
C50 = 50 Tons
C60 = 60 Tons
Unit Nameplate
One Mylar unit nameplate is located on the outside upper
right corner of the control panel door. It includes the unit
model number, serial number, electrical characteristics,
weight, refrigerant charge, as well as other pertinent unit
data. A small metal nameplate with the Model Number, Se-
rial Number, and Unit Weight is located just above the Mylar
nameplate, and a third nameplate is located on the inside of
the control panel door.
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 name-
plate.
Hazard Identification
Warnings are provided through-
out this manual to indicate to installing contractors, opera-
tors, and service personnel of potentially hazardous situa-
tions which, if not avoided, COULD result in death or seri-
ous injury.
Cautions are provided throughout
this manual to indicate to installing contractors, operators,
and service personnel of potentially hazardous situations
which, if not avoided, MAY result in minor or moderate in-
jury.
Unit Description
All air cooled condensing units are designed for outdoor in-
stallations with vertical air discharge. These units may be
installed on a flat roof or placed on a concrete slab at
ground level.
Before shipment, each unit is leak-tested, evacuated, a Ni-
trogen holding charge is added, and the controls are tested
for proper operation.
The condenser coils are aluminum fin, bonded to copper
tubing. Copper-fin coils are optional. Louvered condenser
grilles for coil protection are standard.
Direct-drive, vertical discharge condenser fans are provided
with built-in current and overload protection.
For “Shipwith” items, refer to the Unit Component “Layout”
and “Shipwith” Locations illustration.
If low ambient operation is required, low ambient dampers
are available as a field or factory installed option.
The unit control panel contains all required fan cycling con-
trols, compressor interlocks, and a 115 volt control power
transformer. Field wiring, electrical schematics and panel
connection diagrams are located inside the control panel
access door.