Carrier AQUASNAP 30RAP010-150 Controls, Start-Up, Operation, Service, And Troubleshooting page 76

ALARM/ ALARM
ALERT OR
CODE ALERT
Critical Serial EEPROM
A156 Alarm
Storage Failure
A157 Alarm A/D Hardware Failure
Loss of communication
T170 Alert with the Compressor
Expansion Module
Loss of Communication
A172 Alarm
with EXV Board
Loss of Communication
T173 Alert
with EMM
4 to 20 mA Cooling Set
T174 Alert
Point Input Failure
Loss of Communication
T175 Alert
with the AUX Board
4 to 20 mA
T176 Alert Temperature Reset
Input Failure
4 to 20 mA Demand
T177 Alert
Limit Input Failure
Cooler Pump Auxiliary
A189 Alarm
Contact Inputs Miswired
Cooler Pump 1 Aux
T190 Alert Contacts Failed to Close
at Start-Up
Cooler Pump 2 Aux
T191 Alert Contacts Failed to Close
at Start-Up
Cooler Pump 1 Failed
T192 Alert to Provide Flow at
Start-Up
Cooler Pump 2 Failed
T193 Alert to Provide Flow at
Start-Up
Cooler Pump 1 Aux
Contacts Opened
T194 Alert
During Normal
Operation
Cooler Pump 2 Aux
Contacts Opened
T195 Alert
During Normal
Operation
Flow Lost While Pump 1
T196 Alert
Running
Flow Lost While Pump 2
T197 Alert
Running
See Legend on page 78.
Table 36 — Alarm and Alert Codes (cont)
WHY WAS THIS
DESCRIPTION ALARM
GENERATED?
Configuration/storage
failure with MBB
Hardware failure with
peripheral device
MBB cannot communicate
with CXB
MBB loses communication
with EXV board
MBB loses communication
with EMM
If configured with EMM and
input less than 2 mA or
greater than 22 mA
MBB loses communication
with AUX Board.
If configured with EMM
and input less than 2 mA or
greater than 22 mA
If configured with EMM and
input less than 2 mA or
greater than 22 mA
Pump 1 Auxiliary Contacts
are closed when Pump 2
output is energized or if
Pump 2 Auxiliary Contacts
are closed when Pump 1
output is energized.
Pump 1 Auxiliary Contacts
did not close within
26 seconds after pump
was started
Pump 2 Auxiliary Contacts
did not close within
26 seconds after pump
was started
Pump 1 did not provide
flow to close flow switch
within 60 seconds
Pump 2 did not provide
flow to close flow switch
within 60 seconds
Pump 1 Auxiliary Contacts
open for 26 seconds after
initially made. All
compressors shut down.
Pump 1 turned off.
Pump 2 Auxiliary Contacts
open for 26 seconds after
initially made. All
compressors shut down.
Pump 2 turned off.
Cooler flow switch contacts
open for 3 seconds after
initially made
Cooler flow switch contacts
open for 3 seconds after
initially made
ACTION TAKEN
BY CONTROL
Chiller is not allowed
to run.
Chiller is not allowed
to run.
Compressor A1 shut
down
Chiller is not allowed
to run.
4 to 20 mA
temperature reset
disabled. Demand
Limit set to 100%. 4 to
20 mA set point
disabled.
Set point function
disabled. Chiller
controls to CSP1.
Chiller is not allowed
torun.
Reset function
disabled. Chiller
returns to normal set
point control.
Demand limit function
disabled. Chiller
returns to 100%
demand limit
control.
Both pump outputs
are turned off.
Pump 1 turned off.
Pump 2 will be started
if available.
Pump 2 turned off.
Pump 1 will be started
if available.
Pump 1 turned off.
Pump 2 will be started
if available.
Pump 1 turned off.
Pump 2 will be started
if available.
Pump 2 will be started
if available. Chiller
allowed to run if
Pump 2 successfully
starts.
Pump 1 will be started
if available. Chiller
allowed to run if
Pump 1 successfully
starts.
All compressors
shut down. Pump 1
turned off. Pump 2 will
be started if available.
Chiller allowed to run if
Pump 2 successfully
starts and flow switch
is closed.
All compressors shut
down. Pump 2 turned
off. Pump 1 will be
started if available.
Chiller allowed to run if
Pump 1 successfully
starts and flow switch
is closed.
76
RESET PROBABLE
METHOD CAUSE
Main Base Board
Manual
failure.
Main Base Board
Manual
failure.
Wiring error, faulty
wiring or failed CXB.
Automatic
Incorrect configura-
tion.
Wiring error, faulty
Automatic wiring or failed
EXV board.
Wiring error, faulty
wiring or failed
Automatic
Energy Manage-
ment Module (EMM).
Faulty signal
Automatic generator, wiring
error, or faulty EMM.
Wiring error, faulty
wiring or failed
Automatic
AUX board, incorrect
configuration.
Faulty signal
Automatic generator, wiring
error, or faulty EMM.
Faulty signal
Automatic generator, wiring
error, or faulty EMM.
Wiring error, faulty
Manual pump contactor
auxiliary contacts.
Wiring error, faulty
Manual contacts on pump
contactor
Wiring error, faulty
Manual contacts on pump
contactor
Wiring error, pump
circuit breaker
Manual
tripped, contactor
failure
Wiring error, pump
circuit breaker
Manual
tripped, contactor
failure
Wiring error, faulty
Manual contacts on pump
contactor
Wiring error, faulty
Manual contacts on pump
contactor
Wiring error, pump
circuit breaker
Manual
tripped, contactor
failure
Wiring error, pump
circuit breaker
Manual
tripped, contactor
failure