Trane ADAPTIVE CONTROL UCM-CLD Installation Operation & Maintenance

Trane
Brand
Trane
Model
ADAPTIVE CONTROL UCM-CLD
Type
Installation Operation & Maintenance
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UCM-CLD
Operating and control
principles
Installation
Operation
Maintenance
L80 IM 025 E
2
These Installation, Operation, and Maintenance
instructions are given as a guide to good practice in the
installation, start-up, operation, and periodic
maintenance by the user of UCM-CLD modules.
They do not contain the full service procedures
necessary for the continued successful operation of this
equipment. The services of a qualified service
technician should be employed, through the medium of
a maintenance contract with a reputable service
company.
FFoorreewwoorrdd
Warranty is based on the general terms and conditions
of the manufacturer. The warranty is void if the
equipment is modified or repaired without the written
approval of the constructor, if the operating limits are
exceeded, or if either the control system or the
electrical wiring is modified.
Damage due to misuse, lack of maintenance, or failure
to comply with the manufacturer's instructions, is not
covered by the warranty obligation.
WWaarrrraannttyy
On arrival, inspect the unit before signing the delivery
note. Specify any damage on the delivery note, and
send a registered letter of protest to the last carrier of
the goods within 72 hours of delivery. Notify the local
sales office at the same time.
The unit should be totally inspected within 7 days of
delivery. If any concealed damage is discovered, send a
registered letter of protest to the carrier within 7 days
of delivery and notify the local sales office.
Units are shipped with the refrigerant operating or
holding charge, and should be examined with an
electronic leak detector to determine the hermetic
integrity of the unit. The refrigerant charge is not
included in the standard Warranty Cover.
RReecceeppttiioonn
About this manual
Cautions appear at appropriate places in this
instruction manual. Your personal safety and the
proper operation of this machine require that you
follow them carefully.
The manufacturer assumes no liability for installations
or servicing performed by unqualified personnel.
GGeenneerraall iinnffoorrmmaattiioonn
© American Standard Inc. 2000
3
IInnddeexx
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Principles of operation of the UCM-CLD module
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Operator’s interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Default description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Unit operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Compressor operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Maintenance contract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Chiller report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Refrigerant report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Compressor report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Operator’s settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Service settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Service tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Description of the operation
Diagnostics
4
Figure 1: Operator’s interface
General information
This regulation assembly is composed of 6 electronic
modules which have each their own 115V power
supply and communicate with each other via a serial
link. Each module has a set of functions which are
associated to make the unit regulation.
Each module has the following name linked to its
functions.
- MCSP (Motor Compressor Start and Protection):
safety, protection and control of the helical-rotary
compressor as well as all associated components.
- CPM (Chiller Protection and Management): safety,
protection, and control of the chiller.
- EXV (Electronic Expansion Valve): control of both
electrical expansion valves.
- CSR (Communication and Setpoint Reset): control of
the serial communication, unit external setpoints, and
ice-making mode (optional module).
- Local CLD (Local Clear Language Display): operator’s
interface located in the unit: front panel (software
version and number displayed at power-up).
- Remote LCD (Remote Clear Language Display):
operator’s interface located up to 1500 m from the
unit at the operator’s, and which can communicate
with up to four units of the same type (optional
module).
- TCI IV, IPCB (Tracer Communication Interface 4,
Inter-Processor Communication Buffer): protection of
the unit internal communication bus from the external
interferences existing in the unit (optional module,
compulsory when using a remote CLD, and which
must be factory-mounted).
Compressor
Report
Refrigerant
Report
Chiller
Report
Custom
Report
Select Report Group
Diagnostics
Service
Tests
Service
Settings
Operator
Settings
Alarm
AutoEnterPrevious
StopCancelNext
Select Setting Group
ADAPTIVE CONTROL™
Principles of operation of the module UCM-CLD
5
Figure 2: Control and regulation panel mounted on helical-rotary units equipped with UCM-CLD
Operator’s interface (Figure 1)
Digital display
The display of control regulation and operating
parameters, as well as diagnostic and error messages,
is made on a two-line 40-character liquid crystal
display.
When powering-up the system, the display is not lit
and the message “Self-test in progress” is displayed in
order to make sure the display operates properly.
The screen allows to display:
- The error codes.
- The settings of the various setpoints.
- The specified temperature and pressure values.
- The status of operating parameters and various
options.
Keyboard
A 16-key touch pad allows the operator to move within
the various menus and to modify their parameters and
setpoints.
The keys are divided into two groups.
Menu keys
- Chiller Report menu
- Custom Report menu
- Refrigerant menu
- Compressor menu
- Operator settings menu
- Service settings menu
- Service test menu
- Diagnostics menu
These 8 keys allow to access each of these menus.
Control keys
- + key
- - key
- Previous key
- Next key
- Enter key
- Cancel key
- Auto key
- Stop key
These 8 keys allow the operator to move within the
various menus and to modify their parameters.
Remark: All the menus and setpoints cannot be
accessed by the chillers operator; Service Settings
and Service Test menus are protected by a password
and are reserved for Trane engineers.
6
The whole information is gathered in various menus
according to the location of the sensor and/or the
function performed.
Chiller report menu
This menu gathers the information relating to the liquid
chiller (reading only). Active setpoints and their origins,
chilled water, air temperature, current draws, are found
in this menu.
Custom report menu
This menu is peculiar because originally it does not
include any information at all. However, the operator
can build his own menu which is comprised of read-
only information, by simply pressing the + key when in
other menus. To remove information from this menu,
simply press the - key when displayed.
Refrigerant report menu
This menu gathers the information, read-only, relating
to the refrigerant. Refrigerant pressures and
temperatures at various points of the refrigerant circuit
can be found in this menu.
Compressor report menu
This menu gathers the information, read-only, relating
to the compressor. Voltages and amps, hour and start
counters, as well as oil temperature (GP compressor
only) can be found in this menu.
Operator settings menu
This menu comprises all the particular setpoints and
operating modes existing in the unit and which are
accessible by the usual operator of the chiller. In
addition, the following can be programmed: chilled
water pump operation, temperature resets, ice-making
operation, and low ambient limit.
Service settings menu
This menu has three access levels. The first one
contains information which can be adjusted by the
customer such as the unit voltage, the validation of
over/under voltage protection, the display language,
and the programmable relay function of the units. The
keyboard can also be locked if the relating function is
validated. A second level contains the setpoints
adjusted by the service engineer to adapt the operation
of the unit to a particular site, such as the address of
the serial link, the water and refrigerant limit
parameters, and so forth. The third level contains the
configuration and protection information: number of
circuits, compressors and fans, compressor amps and
expansion valve settings.
Service tests menu
This menu allows the operator to perform some tests
when the unit is in operation or during the initial start-
up of the unit: expansion valve test, circuit locking, or
pump-out.
Diagnostics menu
This menu contains all the information on the current
faults or faults that occurred in the past. It allows the
possibility to reset a manual reset fault or to erase the
historic list of faults.
Description of the operation
Previous key
Pressing the Previous key allows the operator to
scroll up to the previous information in the current
menu. All the display items are looped, so it is
possible to scroll from the first item to the last one.
Next key
Pressing the Next key allows the operator to scroll
down to the next information in the current menu. All
the display items are looped, so it is possible to scroll
from the last item to the first one.
+ key
If this information displayed is a read-only item,
pressing the + key will add it to the operator’s menu.
if the information can be modified, the value is
increased by 1. Pressing the key for longer than 1
second will increase the value of 1 every .25 seconds.
A logical stop prevents an adjustment higher than the
maximum value; a message is displayed to indicate
this status.
- key
If the information displayed is a read-only item,
pressing the - key will remove it from the operator’s
menu. If the information can be modified, the value is
increased by 1. Pressing the key for longer than 1
second will increase the value of 1 every .25 seconds.
A logical stop prevents an adjustment higher than the
maximum value; a message is displayed to indicate
this status.
Enter key
Pressing this key allows the validation of a value after
it has been modified by pressing the + or - key.
Cancel key
Pressing this key allows the cancellation of a value
after it has been modified by pressing the + or - key
and to come back to the original value.
Auto key
Pressing this key (green) allows the unit to come back
in auto mode if it was previously placed in stop mode
with the stop key. The unit cannot be forced into auto
mode if it has been stopped by an external contact or
the serial link. When the unit is stopped by the remote
interface (Remote CLD), the local “auto” mode order
is prioritary.
Stop key
Pressing this key (red) allows the unit to go into stop
mode. In every case, and wherever the origin (except
a local stop), the stop order and stop status have
priority over a run order. The stop generated is a soft
stop, meaning the unit unloads before stopping.
Chiller report: status, water temperatures and setpoints
“Press (Next) (Previous) to continue”
Next
Unit model
(service setting menu)
all others RTXA
Mode: [OPERATING MODE]
Request setpoint source: [SETPOINT SOURCE]
Chiller Mode: [OPERATING MODE]
Request setpoint source: [SETPOINT SOURCE]
Heat Mode: [OPERATING MODE]
Request setpoint source: [SETPOINT SOURCE]
Next
Compressors on A, B, C, D, NONE
Circuits locked out CIRCUIT 1, CIRCUIT 2, NONE
Next
[Operating mode]
Making ice,
ice-making complete All others
Active ice termination setpoint XXX C
Evaporator entering water temperature XXX.X C
Active chilled water setpoint XXX C
Evaporator leaving water temperature XXX.X C
Active hot water setpoint XXX C
Leaving water temperature XXX.X C
Next
Evaporator entering water temperature XXX.X C
Evaporator leaving water temperature XXX.X C
Next
Fan control
(Service Setting Menu)
Disable Enable
Condenser entering water temperature XXX.X C
Condenser leaving water temperature XXX.X C
Water heat recovery entering water temperature XXX.X C
Water heat recovery leaving water temperature XXX.X C
Next
Active current limit setpoint XXX %
Chiller % Rated load amps XXX %
Next
* Outdoor air temperature XXX.X C
** Zone temperature XXX.X C
7
[operating mode] will be one of
Reset
Stopped by Local Display
Stopped by Remote Display
Stopped by Tracer
Stopped by External Source
Auto
Waiting, Restart Inhibit
Starting
Running
Running, Current Limit
Running, Condenser Limit
Running, Evaporator Limit
Stopping
Making ice
ice-making complete
Low ambient temperature lockout
Electronic expansion valve test
Manufacturing test
Service pumpdown
* Dashes will be displayed if the sensor is open
or shorted and neither outdoor air reset or
low ambient lockout is enabled.
** Dashes will be displayed if the zone
temperature sensor is open or shorted or
zone reset is disabled.
Next
Next
Next
Chiller report
Chiller
report
Refrigerant temperature and pressure report
“Press (Next) (Previous) to continue”
Next
All others RTXA
Circuit 1 Circuit Mode: [Circuit mode]
Next
Circuit 1 evaporator refrigerant pressure XXX bar
Circuit 1 condenser refrigerant pressure XXX bar
Next
Circuit 1 compressor suction refrigerant temperature XXX.X C
Circuit 1 saturated evaporator refrigerant temperature XXX.X C
Next
Circuit 1 saturated condenser refrigerant temperature XXX.X C
Next
All others RTXA
Circuit 2 Circuit Mode: [Circuit mode]
Next
Circuit 2 evaporator refrigerant pressure XXX bar
Circuit 2 condenser refrigerant pressure XXX bar
Next
Circuit 2 compressor suction refrigerant temperature XXX.X C
Circuit 2 saturated evaporator refrigerant temperature XXX.X C
Next
Circuit 2 saturated condenser refrigerant temperature XXX.X C
Next
8
Refrigerant report
Refrigerant
report
The possible replacement to
Cooling
Heating
Defrosting
Heat to Defrost
Defrost to Heat
Cool to Heat
Heat to Cool
Compressor report: Mode, Hours, Starts, Rated load amps
“Press (Next) (Previous) to continue”
Next
Compressors on A, B, C, D, NONE
Circuits locked out Circuit 1, Circuit 2, NONE
Next
% line volts XXX %
Next
* Compressor A mode [MODE]
Next
Compressor A % Rated load amps, average XXX %
Compressor A % Rated load amps, high phase XXX %
Next
Tonnage of unit
130-400 Tons 70-125 Tons
Compressor A entering oil temperature XXX C
Next
Compressor A starts XXXXX
Compressor A running hours XXXXX
Next
After review of last compressor Compressor B, C, D
9
* Display will change according to compressor
reviewing
Compressor A mode
Compressor B mode
Compressor C mode
Compressor D mode
[MODE]
Stopped
Locked out
Waiting for restart inhibit time
Starting
Running
Run-condenser limit
Run-evaporator limit
Run-current limit
Stopping
Service pumpdown
Compressor report
Compressor
report
10
Chiller operation settings and setpoints
“Press (Next) (previous) to continue”
Next
Setpoint source [SOURCE]
“Press (+) (-) to change setting”
Next
All others RTXA
Front panel chilled water setpoint XXX C
“Press (+) (-) to change setting”
Next
External chilled water setpoint [Disable/Enable]
“Press (+) (-) to change setting”
Next
Design delta temperature setpoint XXX C
“Press (+) (-) to change setting”
Front Panel Chilled Water Setpoint XXX C
“Press (+) (-) to change setting”
Front Panel Hot Water Setpoint XXX C
“Press (+) (-) to change setting”
External Chilled Water Setpoint [Disable/Enable]
“Press (+) (-) to change setting”
External Hot Water Setpoint [Disable/Enable]
“Press (+) (-) to change setting”
Cooling Design Delta Temperature Setpoint XXX C
“Press (+) (-) to change setting”
Heating Design Delta Temperature Setpoint XXX C
“Press (+) (-) to change setting”
Differential to start setpoint XXX C
“Press (+) (-) to change setting”
Next
[SOURCE]
Local
Tracer
Operator settings
Operator
settings
Default = 6.7°C
Select = - 17.8 to 18.3°C
* If “Limited by cutout setpoint, (+) to change” is
displayed, refer to the section on “Leaving water
temperature cutout” and “Low refrigerant
temperature cutout.”
Default = Disable
Default = 5.5 °C
Select = -16 to +2°C
This is difference between the entering and
leaving chilled water temperature.
Default = 1.1°C
Select = 16.6 to 1.1°C
The temperature which is added the chilled water
setpoint, at which the chiller will start.
11
Default = ON. Manual override of chilled water
pump off delay
AUTO = activates the “Chilled water pump off
delay”
Chilled water pump [ON, AUTO]
“Press (+) (-) to change setting”
Next
Chilled water pump off delay [MINUTES]
“Press (+) (-) to change setting”
Next
Front panel current limit setpoint XXX %
“Press (+) (-) to change setting”
Next
External current limit setpoint [Disable/Enable]
“Press (+) (-) to change setting”
Next
Low ambient lockout [Disable/Enable]
“Press (+) (-) to change setting
Next
Low ambient lockout
(Operator settings menu)
Enable Disable
Low ambient lockout setpoint XXX C
“Press (+) (-) to change setting
Next
[MINUTES]
Default = 10 minutes
Select = 1 minute to 30 minutes
The time period that the chilled water pump will
run, once the stop signal is given to the chiller.
Default = 120%
Select = 40% to 120%
Default = Disable
Default = Disable
Default = -6.6°C
Select: -28°C to 16°C
12
Default = Disable
Select = Return water
Zone
Outdoor air
[TYPE]
Return water
Default = 50%
Range = 10% to 120%
Zone
Default = 100%
Range = 50% to 300%
Outdoor
Default = 10%
Range = -80% to 80%
[TYPE]
Return:
Default = 2,7°C
Range = 0° to 11°C
Zone
Default = 25°C
Range = 10 to 55°C
Outdoor
Default = 32°C
Range = 10 to 55°C
[TYPE]
Return water
Default = 2,7°C
Range = 0° to 11°C
Zone
Default = -15°C
Range = 0° to 11°C
Outdoor
Default = 2,7°C
Range = 0° to 11°C
Default = Disable
Default = -3°C
Select = -7 to -1°C
Chilled water reset type [TYPE]
“Press (+) (-) to change setting”
Next
Type of chilled water reset selected above
Return water
Zone
Outdoor air Disable
[TYPE] type, reset ratio XXX %
”Press (+) (-) to change setting”
Next
[TYPE] type, start reset setpoint XXX C
“Press (+) (-) to change setting”
Next
[TYPE] type, max reset setpoint
“Press (+) (-) to change setting”
Next
Ice machine control [Disable/Enable]
“Press (+) (-) to change setting”
Panel ice termination setpoint XXX F
“Press (+) (-) to change setting”
Next
13
* If the keypad is locked and a diagnostic occurs,
the alarm light will flash if applicable but the
diagnostic screen will not be displayed until the
keypad is unlocked.
** Once the keypad is locked the “PREVIOUS” and
“ENTER” key need to be pressed simultaneously
to unlock the keypad.
Default = Disable
The optional under/over voltage transformer is
needed for this feature.
Default = 460
Selections = 200, 220, 230, 346, 380, 415, 460, 500,
575.
Default = 120 seconds
select = 30 to 120 seconds
The time period between power-up or stop and the
initiation of the compressor start sequence, when
there is a call for cooling.
Default = Disable
[UNITS]
SI
English
[LANGUAGE]
English / Français / Espanol / Nippon / Italiano /
Deutsch / Nederlands
Default = 1
Select = 1 to 12
Default = Disable
Service settings
Service
settings
*
Service settings, enable and units
“Press (Next) (Previous) to continue”
Next
Status of keypad/display lock feature
(Service setting menu)
Enable Disable
“Press (Enter) to lock display and keypad”
password will be required to unlock
Next
Next
Depress either Enter or Next
Enter
***DISPLAY AND KEYPAD ARE LOCKED ***
*** ENTER PASSWORD TO UNLOCK ***
** Previous Enter
Display will return to
“Chiller operating mode”
under chiller report
Under/Over voltage protection [Disable/Enable]
“Press (+) (-) to change setting”
Next
Unit line voltage [VOLT] V
“Press (+) (-) to change setting”
Next
Restart inhibit time XXX SEC
“Press (+) (-) to change setting”
Next
Balanced compressor start and hours [Disable/Enable]
“Press (+) (-) to change setting”
Next
Display units [UNITS]
“Press (+) (-) to change setting”
Next
Language [LANGUAGE]
“Press (+) (-) to change setting”
Next
** Programmable relay setup XX
“Press (+) (-) to change setting”
Next
External circuit lockout [Disable/Enable]
“Press (+) (-) to change setting”
Next
*** Password required for further access
“Please enter password”
Next
14
Service tests: pumpdown, electronic expansion valve,
compressor, lockout
“Press (Next) (Previous) to continue”
Next
Service pumpdown, compressor A [Disable/Enable]
“Press (+) (-) to change setting”
Next
Is there a compressor B ?
Yes No
Service pumpdown, compressor B [Disable/Enable]
“Press (+) (-) to change setting”
Next
Is there a compressor C ?
Yes No
Service pumpdown, compressor C [Disable/Enable]
“Press (+) (-) to change setting”
Next
Is there a compressor D ?
Yes No
Service pumpdown, compressor D [Disable/Enable]
“Press (+) (-) to change setting”
Next
Electronic expansion valve test, circuit 1
“Press (+) (-) to change setting”
Next
Electronic expansion valve test, circuit 2
“Press (+) (-) to change setting”
Next
Compressor test, compressor A [Disable/Enable]
“Press (+) (-) to change setting”
Next
Is there a compressor B ?
Yes No
Compressor test, compressor B [Disable/Enable]
“Press (+) (-) to change setting”
Next
Is there a compressor C ?
Yes No
Compressor test, compressor C [Disable/Enable]
“Press (+) (-) to change setting”
Next
Default = Disable
Must be manually enabled by sevice personnel
from the UCM. The unit must be in STOP/RESET
and can be performed only once for every power-
up of the UCM. Restart inhibit will be prepositioned
and the compressor selected will start and run for
one minute. Manual closing of the liquid line angle
valve will be required.
Default = Disable
Default = Disable
Default = Disable
Default = Disable
Electronic expansion valve test will be initiated
when the unit is in STOP/RESET and Electronic
expansion valve test is set to enable. The mode will
automatically be reset to disable upon completion
of the test.
Default = Disable
Default = Disable
Allows service personnel to override the lead/lag
function and start the compressor of concern. After
the compressor starts, the display will
automatically return to “D.”
Default = Disable
Default = Disable
Service tests
Service
tests
15
Is there a compressor D ?
Yes No
Compressor test, compressor D [Disable/Enable]
“Press (+) (-) to change setting”
Next
Circuit lockout, circuit 1 [UNLOCK/LOCKOUT]
“Press (+) (-) to change setting”
Next
Circuit lockout, circuit 2 [UNLOCK/LOCKOUT]
“Press (+) (-) to change setting”
Next
Default = Disable
Default = UNLOCK
If the setting is changed to “LOCKOUT,” the circuit
will become non-operational. The setting must be
manually changed to “UNLOCK” to regain
operation of the circuit.
Default = UNLOCK
16
If there are no diagnostic messages, the selected menu
item will be displayed continuously. If the diagnostics
key is pressed and there are no active diagnostics, the
readout on the display will be:
NO ACTIVE DIAGNOSTICS PRESENT
When a system malfunction occurs, one of the
following appropriate diagnostic messages will be
displayed:
*** A machine shutdown has occurred ! ***
A machine shutdown occurred
but has cleared “press (Next)”
*** A circuit shutdown has occurred ! ***
A circuit shutdown occurred
but has cleared “press (Next)”
*** Informational warning ***
An informational warning occurred
but has cleared “press (Next)”
When a circuit shutdown - manual reset (CMR) or a
machine shutdown - manual reset (MMR) occurs, the
red LED to the right of the display will flash. Otherwise
this alarm LED is de-energized.
If more than one diagnostic is present, only the highest
priority active diagnostic will be explained in detail. For
example, if the diagnostics occur in the following order
before the operator returns - IFW, MMR, CMR - the
display will read:
*** A machine shutdown has occurred ! ***
because the MMR has the highest priority. However, as
the operator moves through the diagnostic menu to the
“Last diagnostic,” the [Diagnostic description] will
show the CMR diagnostic as well as the IFW. If the
“Next” key is pressed, the display will show all the
other active and historic diagnostics.
The active diagnostic priorities, listed from highest to
lowest are:
Machine shutdown - manual reset (MMR)
Machine shutdown - automatic reset (MAR)
Circuit shutdown - manual reset (CMR)
Circuit shutdown - automatic reset (CAR)
Informational warning (IFW)
The following flowchart shows the display readouts
found under the diagnostics menu. By following the
steps shown in the flowchart, a brief description of the
diagnostic can be viewed. Use the Next key to enter the
main diagnostic menu, where the diagnostic can be
cleared.
Diagnostics
17
No
Diagnostic present
Yes
Other
Type of diagnostic
MMR/MAR Active
*** A machine shutdown has occurred ! ***
“Press (Next) for diagnostic info”
Next
MAR
Type of machine shutdown
MMR
[Diagnostic description]
Latched fault - manual reset required
Next
All others RTXA
Mode at fault: [OPERATING MODE]
Compressors running at fault: [A, B, C, D]
[Unit operating mode] [Operating mode]
Compressors running at fault: [A, B, C, D]
Next
Press (Enter) to reset control
and clear all active diagnostics
Enter
Next
Press Enter or Next
Enter
Machine will unload if loaded
and display will automatically
return to “MODE” in the chiller report
[DIAGNOSTIC DESCRIPTION]
Active fault - May clear automatically
Next
All others RTXA
Mode at fault: [Operating mode]
Compressors running at fault: [A, B, C, D]
[Unit operating mode] [Operating mode]
Compressors running at fault: [A, B, C, D]
Other
Type of diagnostic
MAR inactive
*** A circuit shutdown has occurred ! ***
Press (Next) for diagnostic information”
Next
Diagnostics
Diagnostics
[Unit operating mode]
Cooling Mode
Heating Mode
Defrost Mode
Note:
MMR: Machine shutdown manual reset.
MAR: Machine shutdown automatic reset.
CMR: Circuit shutdown manual reset.
CAR: Circuit shutdown automatic reset.
IFW: Informational warning.
18
Other
Type of diagnostic
CMR/ CAR active
Latched fault - manual reset required
“Press (Next) for more”
Next
CAR
Type of circuit shutdown
CMR
Latched fault - manual reset required
“Press (Next) for more”
Next
Circuit 2
Did diagnostic occur
on Circuit 1 or Circuit 2?
Circuit 1
Press (Enter) to
reset circuit 1 diagnostics
Next
Enter
Reset Circuit 1 diagnostic
Press (Enter) to
reset circuit 2 diagnostics
Next
Enter
Reset Circuit 2 diagnostic
Active fault - can clear automatically
“Press (Next) for more”
Next
Other
Type of diagnostic
CAR inactive
A circuit shutdown occurred
but has cleared “Press (Next)”
Next
IFW inactive
Type of diagnostic
IFW active
*** Informational warning ***
“Press (Next) for diagnostic info”
Next
Note:
MMR: Machine shutdown manual reset.
MAR: Machine shutdown automatic reset.
CMR: Circuit shutdown manual reset.
CAR: Circuit shutdown automatic reset.
IFW: Informational warning.
19
An informational warning occurred
but has cleared “Press (Next)”
Next
No active diagnostics present
“Press (Next) (Previous) to continue”
Next
No
Are there diagnostics
in history ?
Yes
Diagnostic status report follows
“Press (Next) (Previous) to continue”
Next
Last diagnostic:
[DIAGNOSTIC DESCRIPTION]
Next
Next
[DIAGNOSTIC DESCRIPTION]
[DIAGNOSTIC TYPE]
No historic diagnostics present
“Press (Next) (Previous) to continue”
Next
Press (Enter) to
clear diagnostic history
Next
Press (Enter) to
reset circuit 1 diagnostics
Next
Press (Enter) to
reset circuit 2 diagnostics
Next
Press (Enter) to reset control
and clear all active diagnostics
Next
Next
Press Enter or Next
Enter
Machine will unload if loaded and
display will automatically return to
“MODE” in the chiller report.
20
Defaults description
Fault 87
Check External Chilled Water Setpoint: IFW - Value out of range
Fault 89
Check External Current Limit Setpoint: IFW - Value out of range
Fault 8A
Chilled Water Flow (Entering Water Temperature): MMR 1) Entering water temperature
< leaving water temperature
2) No water flow
3) Defective Evaporator sensor
Fault 8E
Evaporator Entering Water Temperature Sensor: MMR - Defective sensor
Fault 8F
Condenser Refrigerant Temperature Sensor - Circuit 1: MMR - Defective sensor
Fault 90
Condenser Refrigerant Temperature Sensor - Circuit 2: MMR - Defective sensor
Fault 93
Evaporator Refrigerant Temperature Sensor - Circuit 1: MMR - Defective sensor
Fault 94
Evaporator Refrigerant Temperature Sensor - Circuit 2: MMR - Defective sensor
Fault 9A
Condenser Entering Water Temperature Sensor: IFW - Defective sensor
Fault 9b
Condenser Leaving Water Temperature Sensor: IFW - Defective sensor
Fault A0
Zone Temperature Sensor: IFW - Defective sensor
Fault A1
Outdoor Air Temperature Sensor: IFW - Defective sensor
Fault Ab
Evaporator Leaving Water Temperature Sensor: MMR - Defective sensor
Fault b5
Low Pressure Cutout - Circuit 1: CMR - Low pressure switch open
Fault b6
Low Pressure Cutout - Circuit 2: CMR - Low pressure switch open
Fault bA
Overload trip - Compressor A: CMR - Current exceeded
Fault bb
Overload Trip - Compressor B: CMR - Current exceeded
Fault bC
Overload trip - Compressor C: CMR - Current exceeded
Fault bd
Overload trip - Compressor D: CMR - Current exceeded
Fault bE
High Pressure Cutout - Compressor C: CMR - High pressure too high
Fault bF
High Pressure Cutout - Compressor D: CMR - High pressure too high
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Trane ADAPTIVE CONTROL UCM-CLD Installation Operation & Maintenance

Trane
Brand
Trane
Model
ADAPTIVE CONTROL UCM-CLD
Type
Installation Operation & Maintenance
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