Operating instructions

8
Table 2 — ComfortLink™ Navigator™ Display Menu Structure
Changing the Display Language
— The Navigator display
has five language options to select from, English, Espanol,
Francais, Portugues, and Translated. The “Translated” option is
not supported at this time. The factory default language is
English. To change the display language, the following item
must be changed.
NOTE: When the Language Selection (Configuration
DISPLANG) variable is changed, all appropriate display
expansions will immediately change to the new language. The
four letter/digit code will not change. No power-off or control
reset is required when reconfiguring languages.
Adjusting the Contrast
— The contrast of the display can be
adjusted to suit ambient conditions. To adjust the contrast, enter
the LED Test mode of the device.
Pressing will access the TEST point. Pressing
again will cause the “OFF” to flash. Use the up or
down arrow to change “OFF” to “ON.” Pressing will
illuminate all LEDs and display all pixels in the view screen.
Pressing and simultaneously allows the
user to adjust the display contrast. The display will read:
Adjust Contrast
- - - -+ - - - - - - - - - - - - - - -
Use the up or down arrows to adjust the contrast. The
screen’s contrast will change with the adjustment. Press
to accept the change. The Navigator module will
keep this setting as long as it is plugged in to the LEN (Local
Equipment Network) bus.
Adjusting the Backlight Brightness
— The backlight of the
display can be adjusted to suit ambient conditions. The factory
default is set to the highest level. To adjust the backlight of the
Navigator module, enter the LED Test mode of the device.
Pressing will access the TEST point. Pressing
again will cause the “OFF” to flash. Use the up or
down arrow to change “OFF” to “ON.” Pressing will
illuminate all LEDs and display all pixels in the view screen.
Pressing the up and down arrow keys simultaneously allows
the user to adjust the display brightness. The display will read:
Adjust Brightness
- - - - - - - - - - - - - - - - - +
Use the up or down arrow keys to adjust screen brightness.
Press to accept the change. The Navigator module
will keep this setting as long as it is plugged in to the LEN bus.
CONTROLS
General —
The 30XA air-cooled liquid chillers contain the
ComfortLink™ electronic control system that controls and
monitors all operations of the chiller. The control system is
composed of several components as listed in the following sec-
tions. All machines have a Main Base Board (MBB), Touch Pi-
lot™ module, electronic expansion valve board (EXV), fan
board, Compressor Protection board, Emergency On/Off
switch, and an Enable-Off-Remote Contact switch.
Main Base Board (MBB) — The MBB is the core of
the ComfortLink control system. It contains the major portion
of operating software and controls the operation of the
machine. See Fig. 8. The MBB continuously monitors input/
output channel information received from its inputs and from
all other modules. The MBB receives inputs from status and
feedback switches, pressure transducers and thermistors. The
MBB also controls several outputs. Some inputs and outputs
that control the chiller are located on other boards, but are
transmitted to or from the MBB via the internal communica-
tions bus. Information is transmitted between modules via a 3-
wire communication bus or LEN (Local Equipment Network).
The CCN (Carrier Comfort Network
®
) bus is also supported.
Connections to both LEN and CCN buses are made at TB3.
MODE
RUN
STATUS
SERVICE
TEST
TEMPERATURES PRESSURES
SET
POINTS
INPUTS OUTPUTS CONFIGURATION
TIME
CLOCK
OPERATING
MODES
ALARMS
Auto Display
(VIEW)
Manual
Test Mode
(TEST)
Unit
Temperatures
(UNIT)
Circuit A
Pressures
(PRC.A)
Cooling
Setpoints
(COOL)
General
Inputs
(GEN.I)
Circuit A
Outputs
(CIR.A)
Display
Configuration
(DISP)
Time of Day
(TIME)
Operating
Control Type
(SLCT)
Reset Current
Alarms
(R.ALM)
Machine
Starts/Hours
(RUN)
Quick
Test Mode
(QUIC)
Circuit A
Temperatures
(CIR.A)
Circuit B
Pressures
(PRC.B)
Heating
Setpoints
(HEAT)
Circuit B
Outputs
(CIR.B)
Unit
Configuration
(UNIT)
Day, Date
(DATE)
Operating
Modes
(MODE)
Current
Alarms
(ALRM)
Compressor
Run Hours
(HOUR)
Circuit B
Temperatures
(CIR.B)
Circuit C
Pressures
(PRC.C)
Misc.
Setpoints
(MISC)
Circuit C
Outputs
(CIR.C)
Service
Configurations
(SERV)
Schedule 1
(SCH1)
Alarm
History
(H.ALM)
Compressor
Starts
(STRT)
Circuit C
Temperatures
(CIR.
C)
General
Outputs
(GEN.O)
Options
Configuration
(OPTN)
Schedule 2
(SCH2)
Fan Run
Hours
(FAN)
Reset,
Demand Limit,
Master/Slave
(RSET)
Holidays
(HOLI)
Compressor
Disable
(CP.UN)
Service
Maintenance
Configuration
(MCFG)
Predictive
Maintenance
(MAIN)
Software Versions
(VERS)
ITEM ITEM EXPANSION PATH VALUE
LANG Language Selection ConfigurationDISP
English
Espanol
Francais
Portugues
Translated
ITEM ITEM EXPANSION PATH VALUE
TEST Test Display LEDs ConfigurationDISP
ENTER
ENTER
ENTER
ENTER
ESCAPE
ENTER
ITEM ITEM EXPANSION PATH VALUE
TEST Test Display LEDs Configuration ModeDISP
ENTER
ENTER
ENTER
ENTER