Trane Rtaaiom3 Manual

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Nameplates
The RTAA outdoor unit nameplates are
applied to the exterior and interior
surface of the Control Panel door
(Figure 1). A compressor nameplate is
located on each compressor. On
remote evaporators, the nameplate is
located on the Terminal Box.
Outdoor Unit Nameplate
The outdoor unit nameplate provides
the following information:
– Unit model and size description.
– Unit serial number.
– Identifies unit electrical requirements.– Lists correct operating charges of
 R-22 and refrigerant oil.
– Lists unit test pressures.
– Identifies installation, operation and
 maintenance and service data
 literature
– Lists drawing numbers for unit wiring
 diagrams.
Compressor Nameplate
The “compressor’ nameplate provides
following information:
– Compressor model number.
– Compressor serial number.– Compressor electrical characteristics.
– Utilization Range.
– Recommended refrigerant.
Remote Evaporator
Nameplate
The “evaporator” nameplate provides
the following information:
– RTAA outdoor unit to which the
 remote evaporator is designed to
 be connected.
– Evaporator serial number. This
 number and the serial number of the
 outdoor RTAA unit to which it is
 connected will be identical.
Figure 7
Nameplates 
						

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Figure 8
Model Number Coding System
RTAA200GXB01A0D0BDEG01 2
123 4 567 8 9 01 2 3 4 5 6 7 8 9 0 (Digit position for above)
Where digits are assigned the following meanings:
Digit Character
No. Value Description
1, 2, 3 Unit  Type/Function
RTA Rotary (Series “R”)
Air Cooled Chiller
4 Development Sequence
A “A” Dev. Sequence
5, 6, 7 Unit Nominal Tons
130 130 Tons
140 140 Tons
155 155 Tons
170 170 Tons
185 185 Tons
200 200 Tons
240 240 Tons
270 270 Tons
300 300 Tons
340 340 Tons
370 370 Tons
400 400 Tons
8 Unit Voltage
D 380/60/3
G 200-230/60/3 Dual
Voltage
1 346/50/3
K 380-415/50/3
4 460/60/3
5 575/60/3
S Special Customer Option
9 Compressor Starter Type
Y Y-Delta
(Closed Transition)
X X-Line
(Across the line)
S Special Customer Option
10, 11 Design  Sequence
BO Second design.
Increment when parts
are affected for
service purposes.
12 Evaporator Leaving Temp.
1 Standard 40-60 F
2 Low 20-40 F
3 Ice making 20-60 F
S Special Customer Option
13 Condenser Coil Fin
Material
A Aluminum
B Aluminum with
corrosion protection
S Special Customer Option
Digit Character
No. Value Description
14 Agency Listing
0 No agency listing
1 U.L. listed - Standard
where  applicable
2 C.S.A. listed
3 *U.L./C.S.A. listed
S Special Customer Option
15 Control Interface
A Standard Control
No communication
module
B Standard Control
With communication
module
C Deluxe Control
No communication
module
D Deluxe Control
With communication module
Deluxe control option consists
of the following:
A - Cycle counter and
hour meter
B - Under/over  voltage
protection
C - Remote alarm contacts
and compressor run
indication
D - % volts
16 Chilled Water Reset
0 None
1 Return water temperature
2 Outside air temperature
3 Zone temperature
S Special Customer Option
17+ Add on Options
A Architectural louvered
panels
B Control power transformer
C Heat recovery
D Low ambient lockout
sensor
E Suction service valves
F Power disconnect
G Low ambient operation
H *Unit sound attenuator
I Remote evaporator
S Special Customer Option
Note:
1. Digits 17 and on may be multiple,
independent add on options.
2. * Denotes that this option assignment has
been made but is not available now
Model Number
Coding System
The model numbers for the outdoor
unit and the compressors are
comprised of numbers and letter which
represent features of the equipment.
Shown on the chart in Figure 8 are
samples of typical unit and compressor
model numbers, followed by the
coding system for each.
Each position, or group of positions, in
the number is used to represent a
feature. For example, in Figure 8,
position 08 of the unit model number,
Unit Voltage, contains the letter “G”.
From the chart, it can be seen that a
“G” in this position means that the unit
voltage is 200-230/60/3 dual voltage. 
						

							23RTAA-IOM-3
Storage
Extended storage of the outdoor unit
prior to installation requires the
following precautionary measures:
1. Store the outdoor unit in a secure
area.
 2. At least every three months
(quarterly), check the pressure in the
refrigerant circuits to verify that the
refrigerant charge is intact. If it is not,
contact a qualified service
organization and the appropriate
Trane sales off ice. 
						

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General
The following instructions are, for the
most part, applicable to both packaged
units and units with the remote
evaporator option. Specific exceptions
are noted.
The most significant difference in the
installation of the two systems is the
requirement for interconnecting piping
with the remote evaporator option. For
this reason, these installation
procedures are covered separately in
the following section, Installation -
Mechanical, Remote Evaporator
Interconnecting Piping.
Pre-installation
Report any damage incurred during
handling or installation to the Trane
sales office immediately. An Installation
Check Sheet is provided.
Location Requirements
Noise Considerations
Locate the outdoor unit away from
sound sensitive areas. If required,
install rubber vibration isolators in all
water piping and use flexible electrical
conduit. Refer to “Unit Isolation”.
Consult an acoustical engineer for
critical applications. Also refer to Trane
Engineering Bulletins for application
information on RTAA chillers.
Installation - Mechanical
Packaged Unit and Units with
Remote Evaporator Option
Foundation
Provide rigid, non-warping mounting
pads or a concrete foundation of
sufficient strength and mass to support
the outdoor unit operating weight (i.e.,
including completed piping, and full
operating charges of refrigerant, oil and
water). Refer to Figures 18 thru 21 for
unit operating weights. Once in place,
the outdoor unit must be level within 1/
4 (6.4 mm) over its length and width.
The Trane Company is not responsible
for equipment problems resulting from
an improperly designed or constructed
foundation.
Clearances
Provide enough space around the
outdoor unit to allow the installation
and maintenance personnel
unrestricted access to all service points.
Refer to submittal drawings for the unit
dimensions. A minimum of four feet is
recommended for compressor service.
Provide sufficient clearance for the
opening of control panel doors. Refer
to Figures 9 thru 12 for minimum
clearances.
 In all cases, local codes
which require additional clearances willtake precedence over theserecommendations.
Note: If the outdoor unit configuration
requires a variance to the clearance
dimensions, contact your Trane Sales
Office Representative. Also refer to
Trane Engineering Bulletins for
application information on RTAA
chillers. 
						

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RTAA-IOM-3
Figure 9 
Dimensions and Clearances for 
RTAA Packaged Unit – 130 to 200 Ton
RTAA-SU-1000E 
						

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RTAA-IOM-3
Figure 10 
Dimensions and Clearances for 
RTAA Packaged Unit – 240 - 300 Ton
RTAA-SU-1001C 
						

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RTAA-IOM-3
Figure 11 
Dimensions and Clearances for 
RTAA Packaged Unit – 340 to 400 Ton
RTAA-SU-1002C 
						

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RTAA-IOM-3
Figure 12 
Dimensions and Clearances for 
RTAA Outdoor Unit with Remote Evaporator Option
RTAA-SU-1003A 
						

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RTAA-IOM-3
Figure 13 
Dimensions and Weights for 
Remote Evaporator Option
RTAA-SU-1004A
NOTES: 
1. TOLERANCE ± 1/8” UNLESS OTHERWISE SPECIFIED. 
2. ALLOW 8’-8” ON EITHER END FOR TUBE REMOVAL.