Table 49 — Alarm Codes

PREFIX

SUFFIX

ALARM

ALARM DESCRIPTION

REASON FOR ALARM

ACTION TAKEN

RESET

PROBABLE CAUSE

CODE

CODE

NUMBER

BY CONTROL

TYPE

 

 

 

 

 

th

 

01

1

Cooler Entering Fluid

 

Temperature measured

Unit be shut down or

Automatic

Faulty Sensor,

 

 

 

 

Thermistor

 

 

by the controller is

not allowed to start

 

wiring error or failed

 

 

02

2

Cooler Leaving Fluid

 

outside of the range

 

 

main base board

 

 

 

of –40 F to 245 F

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

03

3

Circuit A Defrost Thermistor

 

None

Automatic

Configuration error

 

 

04

4

Circuit B Defrost Thermistor

 

 

 

 

 

 

 

 

 

 

 

06

5

Condenser Entering

 

 

 

 

 

 

 

 

 

Fluid Thermistor

 

 

 

 

 

 

 

07

6

Condenser Leaving

 

 

 

 

 

 

 

 

 

Fluid Thermistor

 

 

 

 

 

 

 

08

7

Reclaim Condenser

 

 

 

 

 

 

 

 

 

Entering Thermistor

 

 

 

 

 

 

 

09

8

Reclaim Condenser

 

 

 

 

 

 

 

 

 

Leaving Thermistor

 

 

 

 

 

 

 

11

10

Master/Slave Common Fluid

 

Dual chiller deacti-

Automatic

Faulty Sensor,

 

 

 

 

Thermistor

 

 

 

vated. Master and

wiring error or failed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

slave machines

 

main base board

 

 

 

 

 

 

 

 

operate in stand-

 

 

 

 

 

 

 

 

 

 

alone mode

 

 

 

 

12

11

Circuit A Suction Gas

 

 

Circuit shut down or

Automatic

Faulty Sensor,

 

 

 

 

Thermistor

 

 

 

not allowed to start

wiring error, failed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXV or CPM board

 

 

13

12

Circuit B Suction Gas

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

 

 

15

14

Circuit A Discharge Gas

 

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

 

 

16

15

Circuit B Discharge Gas

 

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

 

 

18

17

Circuit A Condenser Sub-

 

Not supported

Automatic

Configuration error

 

 

 

 

cooling Liquid Thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

19

18

Circuit B Condenser Sub-

 

 

 

 

 

 

 

 

cooling Liquid Thermistor

 

 

 

 

 

 

21

19

Space Temperature

 

 

Alarm tripped

Automatic

Faulty Sensor, wiring

 

 

 

 

Thermistor

 

 

 

 

error, failed EMM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

board

 

 

23

20

Cooler heater feedback

 

 

None

Automatic

Configuration error

 

 

 

 

thermistor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

21

Circuit A Economizer Gas

 

Circuit economizer

Automatic

Faulty Sensor,

 

 

 

 

Thermistor

 

 

 

function disabled

wiring error, failed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXV board

 

 

25

22

Circuit B Economizer Gas

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

Pr

 

01

26

Circuit A Discharge

 

Measured voltage is

Circuit shut down or

Automatic

Faulty transducer,

 

 

 

 

Transducer

 

 

0 vdc or SST > EWT and

not allowed to start

 

wiring error, failed

 

 

02

27

Circuit B Discharge

 

EXV < 50% for 1 minute

 

 

main base board or

 

 

 

 

 

 

fan board

 

 

 

 

Transducer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

04

29

Circuit A Suction Transducer

 

 

 

 

 

 

05

30

Circuit B Suction Transducer

 

 

 

 

 

 

07

32

Circuit A Reclaim Pump-

 

None

Automatic

Configuration error

 

 

 

 

down Pressure Transducer

 

 

 

 

 

 

08

33

Circuit B Reclaim Pump-

 

 

 

 

 

 

 

 

down Pressure Transducer

 

 

 

 

 

 

10

34

Circuit A Oil Pressure

 

 

Circuit shut down or

Automatic

Faulty transducer,

 

 

 

 

Transducer

 

 

 

not allowed to start

 

wiring error, failed

 

 

11

35

Circuit B Oil Pressure

 

 

 

 

CPM board

 

 

 

 

Transducer

 

 

 

 

 

 

 

 

13

37

Circuit A Economizer

 

Measured voltage is

 

 

 

 

 

 

 

Pressure Transducer

 

0 vdc

 

 

 

 

 

14

38

Circuit B Economizer

 

 

 

 

 

 

 

 

 

Pressure Transducer

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

 

 

CCN

Carrier Comfort Network®

MLV

Minimum Load Valve

 

 

 

CPM

Compressor Protection Module

MOP

Maximum Operating Pressure

 

 

 

EMM

Energy Management Module

MTA

Must Trip Amps

 

 

 

EWT

Entering Water Temperature

SST

Saturated Suction Temperature

 

 

EXV

Electronic Expansion Valve

UL

Underwriters Laboratories

 

 

 

HPS

High Pressure Switch

 

 

 

 

 

 

 

69

Page 69
Image 69
Carrier 30XW150-400 specifications Alarm Codes

30XW150-400 specifications

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