Trane CGAD020 Owner's manual

Installation
Operation
Maintenance
Air-Cooled Condenser
Scroll Compressor
20 to 150 TR
50 / 60 Hz
CGAD-SVN02C-ENNovember 2015
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
Models: 50 or 60 Hz
CGAD020 CGAD040
CGAD025 CGAD050
CGAD030 CGAD060
CGAD070 CGAD100
CGAD080 CGAD120
CGAD090 CGAD150

CGAD-SVN02C-EN2
Important Notice
Refrigerant Emission Control
The conservation and reduction of gas
emissions should be reached by following
the operational and service procedures
recommended by Trane, with special
attention to the following:
The refrigerant used in any type of air-
conditioning equipment should be
recuperated and/or recycled to be used
again, captured or completely destroyed
whenever it is removed from the
equipment. It should never be released
into the atmosphere.
Always consider the possibility of recycling
or reprocessing the refrigerant transferred
before beginning the recuperation by any
method. Questions about recuperated
refrigerants and acceptable qualities are
described in norm ARI 700.
Use approved and safe cylinders. Comply
with all the applicable safety and
transportation norms when transporting
the refrigerant containers.
In order to minimize emissions when
transferring the refrigerant gas, use
recycling equipment. Always use methods
that make the lowest vacuum possible
when recuperating and condensing the
refrigerant inside the cylinder.
Important:
Since Trane do Brasil has continual development of its products as a policy, it reserves the right to
change its specifications and drawings without prior notice. The installation and maintenance of the
equipment specified in this manual should be done by qualified technicians and/or technicians
approved by Trane. The lack of following and/or adopting the procedures presented in this manual
could imply in the product losing its warranty.
IMPORTANT:
Dimensional measuring units on this
catalog are on milimitres (mm). (Exept
for those locally referencied).

CGAD-SVN02C-EN 3
Contents
Important Notice 02
Contents 03
Model Number 04
General Data 05
Unit Inspection 06
General Information 07
Transportation and Movement 08
Clearances for Maintenance and Air Circulation 09
Clearance between Units and sound Pressure 10
Application Considerations 11
Checklist for Initial Start 16
Operational Conditions 17
Calculating Subcooling and Superheat 19
Refrigeration Cycle 20
Table for Regulating R-407c 21
Operational Procedures 22
Maintenance Procedures 27
Electrical Data 29
Screens 32
Global Connector 35
Wiring Diagram 36
Diagnostics CH530 73
Troubleshooting 78
Standard Conversion Table 84

CGAD-SVN02C-EN4
Model Number
The product's code describes the configuration, capacity, and optional characteristics. It is very important to
indicate the correct order of the equipment's code in order to avoid future problems when delivering them. Above
you will find the description of each digit that makes up the product code.
Digits 1, 2 - Unit Model
CG = "Cold Generator" Scroll Chiller
Digit 3 - Unit Type
A = Air Cooled
Digit 4 - Model Series
D = Sequence D
Digits 5, 6 e 7 - Nominal Capacity
020 = 20 Ton.
025 = 25 Ton.
030 = 30 Ton.
040 = 40 Ton.
050 = 50 Ton.
060 = 60 Ton.
070 = 70 Ton.
080 = 80 Ton.
090 = 90 Ton.
100 = 100 Ton.
120 = 120 Ton.
150 = 150 Ton.
Digit 8 - Unit Voltage
C = 220/60/3
J = 380/60/3
D = 380-400/50/3
4 = 440-460/60/3
Digit 9 - Manufacturing Location
B = Curitiba Plant - Brazil
Digits 10,11 - Sequence of Modifi. minor of
Project
A0 - Sequence A0 (Defined by factory)
Digit 12 - Certifying Agency
N = No certification
Digit 13 - Refrigerant Type
4 = R407c
Digit 14 - Expansion Valve type
N = Thermostatic
C G A D 1 5 0 J B A 0 N 2 N N A N 0 N N N N N N N N 0 N P 0 0 0 N
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 0 21 22 23 24 25 26 27 28 29 30 31 32 33
Digit 15 - Evaporator Application
N = Standard Cooling (40 - 60°F)
Digit 16 - Coil Type
A=Aluminium fins
S = Yellow Fin
Digit 17 - Piping Configuration
N = Standard
A = Service valves on suction and discharge
lines
Digit 18 - Digit Reserved
0 = Reserved
Digit 19 - Feed Type
N = Terminal Block
D = Disconnector Key
C = Circuit Breaker
Digit 20 - Remote Operation Interface
N = No Remote Interface
C = Tracer Comm3 Interface
L = Comm5 - LonTalk Compatible (LCI-C)
Interface
Digit 21 - Input controls
N = No controls
R = External Leaving Water Setpoint
Digit 22 - Output controls
N = No controls
A =Alarm Relay Output
Digit 23 - Electrical Accessories
N = No acessories
Digit 24 - Control Panel Accessories
N = No acessories
Digit 25 - Protection panels
N = No Protection panels
Digit 26 - Installation accessories
N = Without Installation accessories
R = Neoprene Vibration isolators
F = Adapter Kit for Flange
G = Isolator and Flange adapter kit
Digit 27 - Digit Reserved
0 = Reserved
Digit 28 - Digit Reserved
0 = Reserved
Digit 29 - Language - Literature/Labels
P = Portuguese/Spanish
Digit 30 - Digit Reserved
0 = Reserved
Digit 31 - Digit Reserved
0 = Reserved
Digit 32 - Digit Reserved
0 = Reserved
Digit 33 - Product Type
N = Standard
Z = Special

CGAD-SVN02C-EN 5
General
Data
Table 01 - General Data - CGAD 20-150 TR - 50 or 60 Hz
Notes:
(1) Data based on operational conditions established by standard ARI550/590-03.
(2) MCA values referes to 380 / 60 Hz power supply.
(3) Ratings based on global consumption (compressors and fans).
(4) MCA values referes to 380 / 50 Hz power supply.
(5) These measurements take into consideration the depth of the electrical frame attached to the equipment.
(6) These measurements of floor space do not take into consideration the base of the electrical frame attached to the equipment.
(7) The adapters for Victaulic connection type are not provided in standard option.
(8) Operating W eight includes refrigerant and water weight.
(9) Shipping Weight includes only refrigerant weight.
M o d e l ( 1 ) C G A D 0 2 0 C G A D 0 2 5 C GA D 0 3 0 C G A D 0 4 0 C G A D 0 5 0 C G A D 0 6 0 C G A D 0 7 0 C G A D 0 8 0 C G A D 0 9 0 C G A D 10 0 C G A D 12 0 C G A D 15 0
C ap acit y To ns 17,9 2 1,4 2 6 ,5 3 6 ,1 4 2 ,8 52,6 6 5,7 76 ,2 8 2 ,6 9 5,3 116 ,8 14 4 ,0
Syst em KW (3 ) 2 0 ,0 2 7,2 3 0 ,7 4 1,3 53 ,9 6 1,6 71,8 8 2 ,2 9 3 ,9 10 6 ,5 13 5,3 156 ,5
N o minal A mp s ( 2 ) A 54 ,0 6 8 ,0 78 ,0 9 7,0 12 3 ,0 14 2 ,0 16 3 ,0 192 ,0 2 10 ,0 2 55,0 2 9 5,0 3 76 ,0
Ef f ic iency ( 3 ) E.E.R . 10 ,8 9 ,4 10 ,4 10 ,5 9 ,5 10 ,2 11,0 11,1 10 ,5 10 ,7 10 ,4 11,0
KW / TR 1,115 1,2 73 1,157 1,14 3 1,2 58 1,171 1,0 9 3 1,0 79 1,13 7 1,118 1,158 1,0 8 7
C ap acit y To ns 15,5 18 ,6 2 3 ,0 3 1,2 3 7,2 4 5,5 56,5 6 5,4 71,2 8 5,2 10 4 ,7 12 8 ,6
Syst em KW (3 ) 16 ,8 2 3 ,0 2 5,8 3 4 ,6 4 5,6 51,8 59 ,9 6 8 ,9 78 ,4 9 5,4 12 1,0 14 0 ,5
N o minal A mp s ( 4 ) A 4 5,0 57,0 6 5,0 8 0 ,0 110 ,0 116 ,0 13 0 ,0 15 0,0 170 ,0 19 0 ,0 2 2 5,0 2 8 4,0
Ef f ic iency ( 3 ) E.E.R . 11,1 9 ,7 10 ,7 10 ,8 9 ,8 10 ,6 11,3 11,4 10 ,9 10 ,7 10 ,4 11,0
KW / TR 1,0 8 6 1,2 3 8 1,12 3 1,10 9 1,2 2 7 1,13 7 1,0 6 0 1,0 53 1,10 2 1,119 1,155 1,0 9 3
M o d el ( 6) S Z 12 5 S Z 18 5
SZ 12 5 S Z 18 5 S Z 12 5 SZ 18 5 SZ 12 5 S Z 18 5 S Z 18 5 S Z 12 5
S Z 18 5
S Z 12 5 S Z 18 5 SY 3 0 0 SY 2 4 0 SY 3 0 0
Typ e Scro l l Scr o ll Sc ro ll Scr o ll Sc ro ll Scr o ll Scr o ll Scr ol l Scr o ll Scr o ll Scr o ll Scr o ll
Quant it y 2 1 / 1 2 4 2 / 2 4 2 / 4 4 / 2 6 4 6 6
N o minal C ap acit y To ns 10 15/ 10 15/ 15 10 15/ 10 15 15 / 10 15 / 10 15 2 5 2 0 2 5
W at er St o rag e Lit er s 4 4 4 1 6 2 52 79 14 3 151 14 3 12 2 12 2 173 2 77
M i n. w at er f l o w rat e m3/ h 5,5 6 ,8 8 ,2 10 ,9 13 ,6 16 ,4 2 1,8 2 7,3 2 7,3 3 2 ,7 4 0 ,9 4 9 ,1
M ax. wat er f lo w rat e m3/ h 16 ,4 2 0 ,4 2 4 ,5 3 2 ,7 4 0 ,9 4 9 ,1 6 5,4 8 1,8 8 1,8 9 8 ,1 12 2 ,7 14 7,2
Inlet co nnect io n 2 " 2 " 2 1/ 2 " 2 1/ 2 " 3 " 4" 4 " 4 " 4 " 4 " 6 " 6 "
Out let co nnect i on 2 " 2 " 2 1/ 2 " 2 1/ 2 " 3 " 4" 4 " 4 " 4 " 4 " 6 " 6 "
Typ e
N o . o f co ils 2 2 2 4 4 4 4 4 4 4 4 4
T o t al f ac e ar ea m24 ,7 4 ,7 4 ,7 8 ,5 11,0 11,0 14 ,0 14 ,7 14 ,7 13 ,1 16 ,9 19 ,5
Fins p er inches 16 16 14 16 16 16 14 14 14 16 16 16
N o . o f ro ws 2 2 3 2 2 2 3 3 3 3 3 3
2 3 3 4 6 6 6 8 8 6 8 10
D iamet er mm 76 2 76 2 76 2 76 2 76 2 76 2 76 2 76 2 76 2 76 2 762 76 2
A ir f lo w rat e m3/ h 3 2 .6 2 0 4 5.8 70 4 4 .170 6 4 .560 9 5.14 0 9 5.14 0 9 7.6 9 0 12 2 .3 3 0 12 2 .3 3 0 9 8 .118 13 0 .8 2 4 16 3 .53 0
R PM R PM 114 0 114 0 114 0 114 0 114 0 114 0 114 0 114 0 114 0 114 0 114 0 114 0
M o t or p o wer KW 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12 1,12
T ransmi ssi o n t yp e D ir ect D ir ect D ir ect Di rect D ir ect D ir ect D ir ect Di r ect Di rect Di rect D i rect D ir ect
Heig ht mm 18 4 0 ,5 18 4 0 ,5 18 4 0 ,5 2 19 0 ,5 2 19 0 ,5 2 19 0 ,5 2 190 ,5 2 19 0 ,5 2 19 0 ,5 2 3 76 ,0 2 3 76,0 2 3 76 ,0
Lengt h ( 4 ) mm 2 19 5,0 2 19 5,0 2 19 5,0 2 3 8 9 ,0 29 8 9 ,0 2 9 8 9 ,0 3 6 9 5,0 3 9 0 3 ,0 3 9 0 3 ,0 3 4 2 5,0 4 9 4 9 ,0 49 4 9 ,0
W id t h mm 13 50 ,0 170 0 ,0 170 0 ,0 18 8 0 ,0 18 80 ,0 18 8 0 ,0 18 8 0 ,0 18 8 0 ,0 18 8 0 ,0 2 2 4 2 ,0 2 2 4 2 ,0 22 4 2 ,0
Fo o t p ri nt area ( 5 ) m22 ,70 0 3 ,4 0 0 3 ,4 0 0 3 ,9 4 0 5,2 50 5,2 50 6 ,58 0 6 ,9 70 6 ,9 70 7,2 3 7 10 ,6 54 10 ,6 54
R ef rig er ant t yp e St and ard R- 4 0 7C R-4 0 7C R-4 0 7C R- 40 7C R- 4 07C R -4 0 7C R -4 0 7C R -4 0 7C R -4 0 7C R- 40 7C R -4 0 7C R- 4 0 7C
N o . o f circuit s 1 1 1 2 2 2 2 2 2 2 2 2
50 / 10 0 4 0 / 10 0 50 / 100 2 5 / 50 2 0 / 4 0 2 5 / 50 2 9 / 5 7 3 1/ 6 3 3 3 / 6 7 2 5/ 50 17 / 3 3 17/ 3 3
75 / 10 0 70 / 10 0 75 / 10 0 79 / 10 0 8 1/ 10 0 8 3 / 10 0 75/ 10 0 6 7 / 10 0 6 7 / 10 0
Op erat ing w eig ht Kg 13 4 0 14 2 0 14 8 0 1910 22 10 2 500 3 0 0 0 3 2 4 0 3 2 2 0 3 775 4 13 5 4 6 53
Shi p pi ng w eig ht Kg 13 0 0 13 8 0 14 2 0 18 6 0 2 13 0 2 3 6 0 2 8 50 3 10 0 3 10 0 3 6 53 3 9 6 2 4 3 76
C o m p r e s s o r
5 0 H z
C ap acit y st ag es
E v a p o r a t o r
6 0 Hz
C o n d e ns e r
F a n s
G e ne r a l D a t a
Quant it y
A luminum f ins, 3 / 8 " - O D co p p er t ub es

CGAD-SVN02C-EN6
Unit Inspection
Upon receiving the unit at the installation
site, proceed as follows:
- Make sure that the data on the nameplate
are the same as the data contained on the
sales order and shipping invoice
(including electrical data).
- Make sure that the local power supply
conditions comply with the specifications
on the identification plate.
- Carefully inspect the unit for damages
occurred during transportation. Report any
damage or material shortage immediately
to the carrier. Make a “unit damage”on the
carrier’s delivery receipt. Specify the type
and extend of damage.
- Notify Trane do Brasil and/or the
installation company about the damages
and the actions required for repairs. Do not
repair the unit until the damages have
been inspected.
Storage
If the unit cannot be installed in its
permanent location at the time of delivery,
store it in a safe place, and protect it from
exposure to the wheater and other factors
that may damage it. Storage, as well as
inappropriate moving of the equipment,
will imply in the equipment losing its
warranty.
Instructions for proper installation
Consider the following items for a correct
installation before placing the unit in its
location:
- The floor and unit base should be level,
solid, and strong enough to bear the
Unit Inspection
weight of the unit and its accessories.
Level or repair the floor at the location
where the unit will be installed before
placing it.
- Make sure units have rubber skids or
vibration isolators.
- Provide the minimum clearances
recommended for routine maintenance
and services; see page 12 of this manual.
- The same distances apply in case of
various units together.
- Provide the electrical installation. The
units are designed so that they can receive
electrical hookups from either side.
- Make sure there is enough space for the
piping and to remove the covers.
- The supply of electrical power should
comply with the Norm NBR 5410 and local
and/or NEC codes.
- The installer should provide and install
the hydraulic piping to connect the air-
conditioning units to the CGAD liquid
chiller.
General Safety
CGAD units are designed to work safely
and in a reliable manner when operated
according to the safety norms. The system
works with electrical, mechanical, water
and gas pressure components, as well as
many other components that can cause
personal damage to people and
equipment if they do not comply with the
needed safety norms.
Therefore, only specialized and/or Trane-
authorized installers should carry out
installation, start-up, and maintenance on
this type of equipment.
Follow all the safety regulations related to
the work and the warning signs on the
stickers placed on the units, and always
use appropriate tools and equipment.
Identifying Danger
WARNING!!
Warnings appear at appropriate
locations throughout this manual in
order to alert operators and service
personnel about situations of
potential risk that COULD result in
severe personal injury or damage to
the equipment if safety regulations
are not followed.
!
Cautions appear at appropriate
locations throughout this manual in
order to alert operators and service
personnel about situations of
potential risk that could damage the
equipment or the environment.
CAUTION:

CGAD-SVN02C-EN 7
General Information
Identification labels
The unit identification labels
CGAD are fixed in surface foreign
of door the control Panel. The plates
of identification the compressor
are fixed on own compressor.
See figure the front view/ side external
the CGAD. For location and identification
of the same.
Fig. 01 - Identification labels

CGAD-SVN02C-EN8
Dispatch and Handling
1. The CGAD Cooling units leave the plant
ready to be installed, tested as needed,
and with the correct level of oil and
refrigerant for operation.
2. When the unit arrives, compare all the
data on the plate with the information on
the order and invoice.
3. In order to receive the unit, run a visual
check on all the components, tubing, and
connections in order to make sure that
there are no dents or leaks caused by
handling during transportation. If there are
any problems, notify the transportation
company and Trane do Brasil immediately.
4. The CGAD Cooling units come with
hoisting supports along both sides of the
unit's profile made up of four holes. Put the
hoisting cables through the holes and set
extension bars between the cables on the
top part of the unit (fig. 2). This way, when
the equipment is hoisted correctly, it will
remain in its center of gravity. The loading
weights are shown on table 2.
5. The chains, ropes, or steel cables
should not touch the equipment.
6. During transportation, do not tip or lean
the equipment more than 15° from the
vertical position.
7. The compressors are fixed to their
support tracks with the bolts from the
rubber pads themselves and they leave
the plant tight for protection against
movements that could cause the tubing to
break. The operation and loading position
in this type of pad is the same.
Support and Fastening Base
1. In order to fix the CGAD unit in place,
there must be a support base that is
perfectly level and smooth. Also make sure
that the location for the unit is sufficiently
resistant to withstand its weight and
absorb the vibrations of the unit.
2. We recommend using skids or vibration
arrestors under the unit's support feet. The
rubber pad-type vibration arrestors should
be installed between the unit's feet and the
base surface. If the equipment is installed
on top of cement slab or roof, spring-type
vibration arrestors should be purchased.
We do not recommend the use of shock
absorbers of springs vibration.
3. Mark the support points on the flooring
and be careful when moving the unit
horizontally and vertically.
Transportation
and Movement
U-Beam 3” x 1 1/2” x 0.25” x 100”
Fig. 02 - Fastening the compressor
Fig. 03 - Transportation and movement instruction
CONDENSER
COIL
COMPRESSORS
ELECTRICAL
PANEL
PRESSURE
GAUGES
Model Dimension "A"
020 57''
025-030 71''
040-090 78,8'
Working
height
Base
Compressor

CGAD-SVN02C-EN 9
Clearances for Maintenance
and Air Circulation
For the equipment's good operation, it
is very important to leave enough room
between the units and between the
Fig. 04 - Maintenance and Air Circulation Clearances
NOTE:
Unit: mm
units and the walls in order to allow a
good air circulation without the danger
of hot air returning to the equipment
(air short-circuit). Also read the section
called "Application Considerations" in
this manual.

CGAD-SVN02C-EN10
Clearance between Units and
Sound Pressure (dBA)
Make sure that there is enough space
around the unit externally in order to allow
the installation and maintenance team to
have unrestricted access to all service
points. Check the unit's dimensions in the
drawings that were approved. We
recommend a minimum of 4 feet (1.2 m)
for servicing the compressor. Make sure
there is enough space to open the control
panel doors. Above all, any local codes that
determine additional spaces needed have
priority over these recommendations.
The warm air recirculation and the
depletion of the coil cause a reduction in
the unit's efficiency and capacity due to an
increase in the charge pressures. Do not
allow residues, trash, and other materials
to accumulate around the unit. The
Fig. 05b - Recommended clearances - between units
Fig. 05a - Recommended clearances - horizontal assembly
CGA D020C 64
CGA D025C 65
CGA D030C 65
CGA D040C 67
CGA D050C 68
CGA D060C 68
CGA D070C 70
CGA D080C 72
CGA D090C 72
CGA D100C 72
CGA D120C 74
CGA D150C 74
Pr es s ão Sonora
(dbA) a 10 m e tr os
Equipam e nto
Notes: Measurements are made on the side of
equipment at distance of 10 meters. Measurements
smaller than 10 meters may provide diferents results
because the large size of equipment and different
sources of noise located in defferent positions.
movement of air supply can cause
residues to be sucked up into the
condenser coil and block the spaces
between the fins of the coil and cause the
coil to become depleted. The units for low
ambient temperatures need special
attention. The coils of the condensers and
the discharge of the fans should be kept
free of snow and of other obstructions to
allow an adequate air flow and a
satisfactory operation.
In situations in which the equipment has to
be installed with less space than that
recommended, which frequently occurs in
applications with retroactive updates and
with ceiling assemblies, a restricted air
flow is common.
An unobstructed air flow for the condenser
is essential to maintain the chiller's
operational capacity and efficiency. When
deciding on the unit's position, plan
carefully in order to ensure enough air flow
through the condenser's heat transfer
surface. Two possible harmful conditions
must be avoided for the equipment to
reach its optimum performance: warm air
recirculation and the depletion of the coil.
Warm air recirculation occurs when the
discharge air from the condenser fans is
blown to the entrance of the condenser
coil. The coil's depletion occurs when the
free air-flow (or part of it) to the condenser
is restricted.