Carrier GTR040-420 Spezifikationen PDF herunterladen (Seite 54)

Table 31 — Alarm and Alert Codes

ALARM/

ALERT

CODE

ALARM

ALERT

DESCRIPTION

WHY WAS THIS

ALARM

GENERATED?

ACTION TAKEN

BY CONTROL

RESET

METHOD

PROBABLE

CAUSE

T051

Alert Circuit A, Compressor 1

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit A shut down. Manual High-pressure or loss-of-

charge switch open, faulty

control relay or CPCS

board, loss of condenser

air, liquid valve closed.

T052

Alert Circuit A, Compressor 2

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit A shut down. Circuit

restarted in 1 minute.

Compressor A2 not used

until alarm is reset.

Manual High-pressure switch

open, faulty control relay or

CPCS board, loss of con-

denser air, liquid valve

closed.

T053

Alert Circuit A, Compressor 3

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit A shut down. Circuit

restarted in 1 minute.

Compressor A3 not used

until alarm is reset.

Manual High-pressure switch

open, faulty control relay or

CPCS board, loss of con-

denser air, liquid valve

closed.

T054

Alert Circuit A, Compressor 4

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit A shut down. Circuit

restarted in 1 minute.

Compressor A4 not used

until alarm is reset.

Manual High-pressure switch

open, faulty control relay or

CPCS board, loss of con-

denser air, liquid valve

closed.

T055

Alert Circuit B, Compressor 1

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit B shut down. Manual High-pressure or loss-of-

charge switch open, faulty

control relay or CPCS

board, loss of condenser

air, liquid valve closed.

T056

Alert Circuit B, Compressor 2

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit B shut down. Circuit

restarted in 1 minute.

Compressor B2 not used

until alarm is reset.

Manual High-pressure switch

open, faulty control relay or

CPCS board, loss of con-

denser air, liquid valve

closed.

T057

Alert Circuit B, Compressor 3

Failure

Compressor feedback sig-

nal does not match relay

state

Circuit B shut down. Circuit

restarted in 1 minute.

Compressor B3 not used

until alarm is reset.

Manual High-pressure switch

open, faulty control relay or

CPCS board, loss of con-

denser air, liquid valve

closed.

A060

Alarm Cooler Leaving Fluid

Thermistor Failure (T1)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Chiller shutdown after

pumpdown complete.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

A061

Alarm Cooler Entering Fluid

Thermistor Failure (T2)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Chiller shutdown after

pumpdown complete.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T064

Alert Circuit A Saturated Con-

densing Thermistor Failure

(T3)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit A shutdown after

pumpdown complete.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T065

Alert Circuit B Saturated Con-

densing Thermistor Fail-

ure (T4)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit B shutdown after

pumpdown complete.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T066

Alert Circuit A Saturated Suction

Thermistor Failure (T5)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit A shutdown after

pumpdown complete.

(EXV only)

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T067

Alert Circuit B Saturated Suction

Thermistor Failure (T6)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit B shutdown after

pumpdown complete.

(EXV only).

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T068

Alert Compressor A1 Suction

Gas Thermistor Failure

(T7)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit A shutdown after

pumpdown complete.

(EXV only).

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T069

Alert Compressor B1 Suction

Gas Thermistor Failure

(T8)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Circuit B shutdown after

pumpdown complete.

(EXV only).

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T073

Alert Outside Air Thermistor

Failure (T9)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Temperature reset dis-

abled. Chiller runs under

normal control/set points.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T074

Alert Space Temperature

Thermistor Failure (T10)

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Temperature reset dis-

abled. Chiller runs under

normal control/set points.

Automatic Thermistor failure, dam-

aged cable/wire or wiring

error.

T077

Alert Circuit A Saturated

Suction Temperature

exceeds Cooler Leaving

Fluid Temperature

Saturated suction is

greater than leaving fluid

temperature for more than

5 minutes

Circuit A shutdown after

pumpdown complete.

Automatic Faulty expansion valve or

EXV board, faulty cooler

suction thermistor (T5) or

leaving fluid thermistor

(T1).

T078

Alert Circuit B Saturated

Suction Temperature

exceeds Cooler Leaving

Fluid Temperature

Saturated suction is

greater than leaving fluid

temperature for more than

5 minutes

Circuit B shutdown after

pumpdown complete

Automatic Faulty expansion valve or

EXV board, faulty cooler

suction thermistor (T6) or

leaving fluid thermistor

(T1).

T079

Alert Lead/Lag Thermistor

Failure

Thermistor outside range

of –40 to 245 F (–40 to

118 C)

Lead/lag algorithm runs

using Master LWT sensor

Master is lead chiller.

Automatic Dual chiller LWT thermistor

failure, damaged cable/

wire or wiring error.

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