Operating instructions

94
Table 59 — Alarm Codes (cont)
LEGEND
PREFIX
CODE
SUFFIX
CODE
ALARM
NUMBER
ALARM DESCRIPTION REASON FOR ALARM
ACTION TAKEN
BY CONTROL
RESET
TYPE
PROBABLE CAUSE
A1, B1, C1 04 111-04,
112-04,
113-04
Compressor Over current CPM board detects high
motor current compared
with MTA setting
Circuit shut down Manual Operating beyond
compressor envelope,
incorrect configuration
05 111-05,
112-05,
113-05
Compressor Locked rotor CPM board detects locked
rotor current compared
with MTA setting
Circuit shut down Manual Compressor motor fail-
ure, unloader slide
valve failure, compres-
sor mechanical failure
06 111-06,
112-06,
113-06
Compressor Phase loss L1 CPM board detects cur-
rent unbalance greater
than 65% for more than
1 second
Circuit shut down Manual Blown fuse, wiring
error, loose terminals
07 111-07,
112-07,
113-07
Compressor Phase loss L2
08 111-08,
112-08,
113-08
Compressor Phase loss L3
09 111-09,
112-09,
113-09
Compressor Low current
alarm
CPM detects motor cur-
rent less than a certain
percentage of the MTA
setting, compressor not
operating
Circuit shut down Manual Power supply discon-
nected, blown fuse,
wiring error, contact
deenergized, faulty
current toroid high
pressure switch trip.
10 111-10,
112-10,
113-10
Compressor Y delta starter
current increase failure alarm
If the delta mode current
is not 25% greater than
the current in Y mode
Circuit shut down Manual Power supply to delta
contactor not
connected, faulty delta
contactor or wiring,
faulty CPM board
11 111-11,
112-11,
113-11
Compressor Contactor failure CPM board detects
greater than 15% of MTA
current for 10 seconds
after shutting off the com-
pressor contactor. Oil
solenoid is energized.
Circuit shut down Manual Faulty contactor, con-
tactor welded, wiring
error
12 111-12,
112-12,
113-12
Compressor Unable to stop
motor
CPM board detects
greater than 15% of MTA
current for 10 seconds
after three attempts
Circuit shut down Manual Faulty contactor,
contactor welded,
wiring error
13 111-13,
112-13,
113-13
Compressor Phase reversal CPM board detects phase
reversal from current
toroid
Circuit shut down Manual Terminal block power
supply lead not in
correct phase. Power
supply leads going
through toroid crossed
14 111-14,
112-14,
113-14
Compressor MTA configura-
tion fault
MTA setting is out of the
allowed MTA range
Circuit shut down Manual Incorrect MTA setting,
faulty CPM board
15 111-15,
112-15,
113-15
Compressor Configuration
switch mismatch
CPM board MTA setting
do not match factory
configuration
Circuit shut down Manual Incorrect CPM dip-
switch setting,
incorrect factory MTA
setting, faulty CPM
board
16 111-16,
112-16,
113-16
Compressor Unexpected
switch setting change
CPM board dipswitch S1
setting changed
Circuit shut down Manual Incorrect CPM dip-
switch setting, faulty
CPM board
17 111-17,
112-17,
113-17
Compressor Power on reset CPM board detects a
power failure
Circuit shut down Manual Power supply
interruption
18 111-18,
112-18,
113-18
Compressor UL 1998 critical
section software error
Software error Circuit shut down Manual Electric noise, faulty
CPM board
19 111-19,
112-19,
113-19
Compressor UL 1998 current
measure dual channel
mismatch
Software error Circuit shut down Manual Electric noise, faulty
CPM board
CCN — Carrier Comfort Network® HPS — High Pressure Switch
CPM — Compressor Protection Module LWT — Leaving Water Temperature
DX — Direct Expansion MOP — Maximum Operating Pressure
EMM — Energy Management Module MTA — Must Trip Amps
EWT — Entering Water Temperature OAT — Outdoor Air Temperature
EXV — Electronic Expansion Valve SST — Saturated Suction Temperature
HGBP — Hot Gas Bypass UL — Underwriters Laboratories