Carrier AQUASNAP 30RAP010-150 Controls, Start-Up, Operation, Service, And Troubleshooting page 78

ALARM/ ALARM
ALERT OR DESCRIPTION
CODE ALERT
Current Sensor Board
T501 Alert
A1 Failure
Current Sensor Board
T502 Alert
A2 Failure
Current Sensor Board
T503 Alert
A3 Failure
Current Sensor Board
T505 Alert
B1 Failure
Current Sensor Board
T506 Alert
B2 Failure
Current Sensor Board
T507 Alert
B3 Failure
T950 Alert Loss of Communication
with Water System
Manager
A951 Alert Loss of Communication
with Chillervisor System
Manager
T952 Alert Loss of Communication
with Hydronic System
Manager
LEGEND
CCN — Carrier Comfort Network
CSB — Current Sensor Board
CSM — Chillervisor System Manager
CXB — Current Sensor Board
EEPROM — Electronic Erasable Programmable Read Only Memory
EMM — Energy Management Module
EWT — Entering Fluid Temperature
EXV — Electronic Expansion Valve
HSM — Hydronic System Manager
LCW — Leaving Chilled Water
LWT — Leaving Fluid Temperature
MBB — Main Base Board
OAT — Outdoor-Air Temperature
SCT — Saturated Condensing Temperature
WSM — Water System Manager
Table 36 — Alarm and Alert Codes (cont)
WHY WAS THIS
ALARM
GENERATED?
Alert occurs when CSB out- Compressor A1 shut
put is a constant high value down
Alert occurs when CSB out- Compressor A2 shut
put is a constant high value down
Alert occurs when CSB out- Compressor A3 shut
put is a constant high value down
Alert occurs when CSB out- Compressor B1 shut
put is a constant high value down
Alert occurs when CSB out- Compressor B2 shut
put is a constant high value down
Alert occurs when CSB out- Compressor B3 shut
put is a constant high value down
No communications have WSM forces removed.
been received by the MBB Chiller runs under own
within 5 minutes of last control
transmission
No communications have CSM forces removed.
been received by the MBB Chiller runs under own
within 5 minutes of last control
transmission
No communications have HSM forces removed.
been received by the MBB Chiller runs under own
within 5 minutes of last control
transmission
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ACTION TAKEN RESET
BY CONTROL METHOD
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
Automatic
PROBABLE
CAUSE
CSB failure.
Wiring error.
CSB failure.
Wiring error.
CSB failure.
Wiring error.
CSB failure.
Wiring error.
CSB failure.
Wiring error.
CSB failure.
Wiring error.
Failed module, wiring
error, failed
transformer, loose
connection plug,
wrong address
Failed module, wiring
error, failed
transformer, loose
connection plug,
wrong address
Failed module, wiring
error, failed
transformer, loose
connection plug,
wrong address