Trane Rtaaiom3 Manual

91RTAA-IOM-3
Figure 50
RTAA Control  Panel –
130 to 200 Tons
with Remote Evaporator Option
LEGEND:
Device
Designation Description
1F1-6 Fan Fuses, Circuit 1
1F7-12 Fan Fuses, Circuit 2
1F15 Control Circuit Fuse
1F16, 1F17 Primary  Transformer
Fuses
1K1, 1K5 Start Contactors
1K2, 1K6 Run Contactors
1K4, 1K8 Transition  Contactors
1K5, 1K7 Shorting  Contactors
1K9-12 Fan Contactors, Circuit 1
1K13-16 Fan Contactors, Circuit 2
1S1, 1S2 Non-fused  Disconnect
Switch
1T1 Control Power
Transformer
1T2...

92RTAA-IOM-3
Figure 51
Operator Interface Controls 

93RTAA-IOM-3
Figure 52
Menu Formats
OPERATING DISPLAY - MENU 0
Selected by setting the number 0 in the “P” menu item. Compressor/circuit
indicators will be lit Continuously in this menu to indicate which compressors/
circuits are running. All items of Menu 0 are display only. Setpoint changes must
be made in other menus.
Display Code and Description
P Menu Number
A Operating Code
b Last Diagnostic Code
C Other Diagnostic Codes
d Active Chilled Water Setpoint*
E Evaporator Entering Water Temperature
F...

94RTAA-IOM-3
Figure 52
Menu Formats (Continued)
SERVICE #1 DISPLAY – MENU 1
Selected by setting the number 1 in the “P” menu item. The compressor circuit indicators will not be lit continuously in this
menu to indicate which compressors are running. As the menu is advanced, the appropriate compressor/circuit indicator will
flash.
UCM Based Setpoint
Display Code and Description Defaults Range
P Menu Number
10 Front Panel Chilled Water Setpoint 44 F 0 to 65 F
11 Design Delta Temperature Setpoint 10 F 4 to...

95RTAA-IOM-3
Figure 52
Menu Formats (Continued)
AUXILIARY OPTIONS – MENU 3
Selected by setting the number 3 in the “P” menu number position. Compressor/circuit indicators will not be lit continuously
in this menu to indicate which compressors/circuits are running.
UCM Based Setpoint
Display Code and Description Defaults Range
P Menu Number
30 External Chilled Water Setpoint - d/E d
31 External Current Limit Setpoint - d/E d
32 Ice Machine Control - d/E d
33 Active-Ice Termination Setpoint*
34 Front Panel...

96RTAA-IOM-3
Figure 52
Menu Formats (Continued)
FACTORY DISPLAY #1 - MENU 4
Caution: Do not leave unit unattended while in Menu 4 or 5. Inadvertent unit safety setpoint changes could occur.
Selected by setting the number 4 in the “P” menu item. Unlike menus 0 through 3, the number 4 can only be set by entering a
combination of numbers. This combination consists of a sequence of “P” menu numbers -0, 1, 2, 1, 2, 3, 2, 3. 4.
Compressor/circuit indicators will not be lit continuously in this menu to indicate...

97RTAA-IOM-3
Figure 52
Menu Formats (Continued)
FACTORY DISPLAY #2 - MENU 5
Caution: Do not leave unit unattended while in Menu 4 or 5. Inadvertent unit safety setpoint changes could occur.
Selected by setting the number 5 in the “P” menu item. Unlike menus 0 through 3, the number 5 can only be set after menu 4
has been selected, as described on the previous page.
Compressor/circuit indicators 
will not be lit continuously in this menu to indicate which compressors are running. As the
menu is advanced...

98RTAA-IOM-3
Figure 53
Condition/Diagnostic Codes
UNIT OPERATING  STATUS COMPRESSOR  OPERATING  STATUSCODE DESCRIPTION CODE DESCRIPTION
Blank UCM Power Off 00Compressor Stop
888888.8 UCM Paw Up 16 Compressor  Lockout
00 Unit Stop 17 Cprsr Service Pumpdown
01 Auto-Local 70 Cprsr Restart Inhibit
02 Auto-Remote 72 Cprsr Start
17 Service Pumpdown 74 Run Normal
70 Unit Restart Inhibit 75 Run: Current Limit
72 Unit Start 76 Run: Condenser Limit
74 Run:Normal 77 Run: Evaporator Limit
75 Run:Current Limit 7E...

99RTAA-IOM-3
Chiller Switch
The chiller switch has three positions:
Top Position AUTO REMOTE
Middle Position AUTO LOCAL
Bottom Position STOP/RESET
With the switch in the AUTO REMOTE
position, the chiller will operate
normally using remote setpoints. Read
and write remote communications may
be performed. Any call for cooling
based on Leaving Water Temperature
(LWT) and the remote (e.g. Tracer)
setpoints, will start the unit. The active
chilled water setpoint (CWS) can be the
remote CWS, a reset remote...

100RTAA-IOM-3
Menu Function
Descriptions and
Selection
Selecting Variables and Options
All variables and options will be set by
depressing the SET POINT UP and SET
POINT DOWN keys. The setpoints will
be increased or decreased by one least
significant digit (1 F, 0. 1 C, or 1 integer
value) with each key depression. If the
key is held down, the setpoint will
continue to be increased or decreased
until the key is released. The minimum
and maximum values of all setpoints
are limited by system design and...