![Carrier 69NT40-561-019 Скачать руководство пользователя страница 63](http://html1.mh-extra.com/html/carrier/69nt40-561-019/69nt40-561-019_operation-and-service-manual_2563845063.webp)
4–37
T-359
AL60
Defrost Tem-
perature
Sensor
(DTS)
Failure of the Defrost
Temperature Sensor
(DTS) to open.
Defrost Tempera-
ture Sensor (DTS)
Test the DTS; refer to
Sensor Checkout Proce-
dure
Replace the DTS if defec-
tive, refer to Sensor Re-
placement
AL61
Heater Cur-
rent Draw
Fault
Improper current draw
during heat or defrost
mode.
Heater(s)
While in heat or defrost
mode, check for proper
current draw at heater
contactors, refer to
ELECTRICAL DATA
Replace heater(s) if defec-
tive, refer to
Evaporator Heater Re-
moval and Replacement.
Contactor
Check voltage at heater
contactor on the heater
side.
If no voltage present:
Replace heater contact or
if defective.
AL63
Current Limit
Unit operating above
current limit.
Refrigeration
System
Check unit for air flow
restrictions.
Clean or remove any de-
bris from coils.
Check unit for proper
operation.
Repair as needed.
Power supply
Confirm supply voltage/
frequency is within speci-
fication and balanced ac-
cording to ELECTRICAL
DATA
.
Correct power supply.
Current limit set
too low.
Check current limit set-
ting Code Cd32.
The current limit can be
raised (maximum of 23
amps) using Cd32.
AL64
Discharge
Tempera-
ture Sensor
(CPDS)
Discharge Tempera-
ture sensor out of
range.
Discharge tem-
perature sensor
(CPDS).
Test the CPDS; refer to
Sensor Checkout Proce-
dure,
Replace the CPDS if de-
fective, refer to Sensor Re-
placement
AL65
Discharge
Pressure
Transducer
(DPT)
Compressor Dis-
charge Transducer is
out of range.
Compressor Dis-
charge Transducer
(DPT)
Confirm accurate DPT
pressure readings, refer
to MANIFOLD GAUGE
SET
.
Replace DPT
if defective.
AL66
(SPT) Suc-
tion Pressure
Transducer,
(EPT) Evap-
orator Pres-
sure
Transducer
Suction Pressure
Transducer (SPT) out
of range.
Suction Pressure
Transducer (SPT)
Confirm accurate EPT
and SPT pressure read-
ings, refer to MANIFOLD
GAUGE SET
- Performing a Pre-trip 5-
9 test will also check the
transducers.
Replace EPT/SPT
if defective.
Monitor
If the alarm persists, it may
indicate a failing compres-
sor, refer to COMPRES-
SOR Service
Table 4–6 Controller Alarm Indications
CODE #
CAUSE
COMPONENTS
TROUBLESHOOTING
CORRECTIVE ACTIONS
Содержание 69NT40-561-019
Страница 2: ......
Страница 4: ......
Страница 74: ......
Страница 127: ...8 3 T 359 Figure 8 2 SCHEMATIC DIAGRAM Evergreen Unit Configuration ...
Страница 128: ...T 359 8 4 Figure 8 3 UNIT WIRING DIAGRAM Evergreen Unit Configuration Sheet 1 of 2 ...
Страница 129: ...8 5 T 359 Figure 8 4 UNIT WIRING DIAGRAM Evergreen Unit Configuration Sheet 2 of 2 ...
Страница 130: ......
Страница 134: ......
Страница 135: ......