Carrier 30GK manual Ccn

Page 34

ALARM CODE DESCRIPTIONS

Code

Alarm name

Description

Action

Pumpdown

Reset type

Probable cause

49

Low suction overheat, circuit B

 

Circuit B shut down

Yes

Manual

Ditto

50

Low oil pressure, compressor A1

Oil pressure < min. threshold

Circuit A shut down

No

Manual

Compressor, crankcase

 

 

 

 

 

 

heater, pressure sensor or

 

 

 

 

 

 

EXV faulty, refrigerant

 

 

 

 

 

 

charge too high, low oil

 

 

 

 

 

 

charge

51

Low oil pressure, compressor B1

Ditto

Circuit B shut down

No

Manual

Ditto

52

Low oil pressure, compressor A2

Ditto

Compressor A2 shut down

 

Manual

Ditto

53

Low oil pressure, compressor B2

Ditto

Compressor B2 shut down

 

Manual

Ditto

54

Low oil pressure, compressor A3

Ditto

Compressor A3 shut down

 

Manual

Ditto

55

Low oil pressure, compressor B3

Ditto

Compressor B3 shut down

 

Manual

Ditto

56

Low oil pressure, compressor A4

Ditto

Compressor A4 shut down

 

Manual

Ditto

57

Low oil pressure, compressor B4

Ditto

Compressor B4 shut down

 

Manual

Ditto

58

Evaporator water flow control fault

1. Interlock not closed before end

Unit shut down.

No

Manual

Evaporator water flow fault

 

 

of start-up delay

Pump shut down

 

 

 

 

 

2. Pump shut down for 2 mins

 

 

 

 

 

 

and water flow contact closed

 

 

 

 

59

Low pressure fault, circuit A

Circuit operating, and suction pressure

Circuit A shut down

No

Auto first time,

Low refrigerant charge, EXV

 

 

below permitted threshold for more

 

 

then manual*

faulty or filter dirty

 

 

than 3 mins.

 

 

 

 

60

Low pressure fault, circuit B

Ditto

Circuit B shut down

No

Ditto

Ditto

61

Repeated high pressure load sheds, circuit A

More than 6 successive capacity load

None

No

Auto

Transducer faulty, condenser

 

 

sheds in the circuit due to exceeded

 

 

 

ent. air temp., evaporator ent.

 

 

high pressure

 

 

 

water temp. too high, cond.

 

 

 

 

 

 

blocked or fan flow rate too

 

 

 

 

 

 

low

62

Repeated high pressure load sheds, circuit B

Ditto

Ditto

 

Ditto

Ditto

63

High pressure switch not reset or reverse compressor

The high pressure switch has not been

Circuit A shut down

No

Manual

The high pressure switch has

 

rotation, circuit A

reset after a high pressure cut-out,

 

 

 

not been reset, poor electrical

 

 

or the lead compressor does not work

 

 

 

connection of lead compr.

64

High pressure switch not reset or reverse compressor

Ditto

Circuit B shut down

No

Manual

Ditto

 

rotation, circuit B

 

 

 

 

 

65

Control box thermostat fault

Sensor overheat

Unit shut down

 

Manual

Control box poorly

 

 

 

 

 

 

ventilated

66

Loss of communication with System Manager

Units controlled by SM, and

Unit operates in autonomous mode

 

Auto

CCN network fault

 

 

communication with the module over

 

 

 

 

 

 

2 mins. faulty

 

 

 

 

67

Loss of communication with the master or slave

Master/slave connection interrupted

Unit operates in autonomous mode

 

Auto

CCN network fault

 

 

beween the two units for more than

 

 

 

 

 

 

2 mins.

 

 

 

 

68

Master/slave configuration error

Poor master/slave configuration

Master/slave control not allowed

 

Auto/manual in

Master/slave configuration

 

 

 

 

 

case of heating/

fault

 

 

 

 

 

cooling fault

 

69

Initial factory configuration necessary

All factory parameters are at zero

Unit prevented from starting

 

Auto

No factory configuration

70

Poor factory configuration.

Poor factory configuration

Ditto

 

Ditto

Factory configuration error

1.Compr. A3 configured and A2 absent

2.Compr. A4 configured and A2 or A3 absent

3.No lead compr. in circuit B

4.Compr. B3 configured and B2 absent

5.Compr. B4 configured and B2 or B3 absent

6.Difference of compressors in circ. A and B too high

7.Fan configured for a water-cooled condenser

8.No fans configured

9.Heat reclaim option configured, and heat reclaim sensors not configured

71

CCN/Clock Board fault

The CCN/Clock Board is no longer

Unit shut down

No

Auto, if the board

CCN/Clock Board faulty

 

 

detected

 

 

is again detected

 

72

Emergency stop

An emergncy stop commend has been

Unit shut down

No

CCN

CCN network command

 

 

transmitted by the CCN network.

 

 

 

 

73

Pump No. 1 fault

Evaporator water pump operating

Unit shut down

No

Manual

Pump overheat or poor

 

 

contact open, when the pump has

 

 

 

pump connection

 

 

received a commmand to operate.

 

 

 

 

74

Pump No. 2 fault

Ditto

Unit shut down

No

Manual

Ditto

75

Condenser anti-freeze protection, circuit A

Saturated temperature is under the

Unit shut down. Condenser pump

No

Auto

Discharge pressure trans-

 

 

frost cut-out point

started, if unit is shut down

 

 

ducer faulty, refrigerant leak,

 

 

 

 

 

 

or low cond. water temp.

76

Condenser anti-freeze protection, circuit B

Ditto

Ditto

No

Auto

Ditto

77

Lack of water flow, condenser

Water flow switch (water-cooled units)

Unit shut down

No

Manual

Condenser pump, low water

 

 

not closed for 1 min.

 

 

 

flow, water flow switch

78

Condenser water flow fault, heat reclaim mode

Ditto

Units stays in cooling mode

No

Manual

Ditto

 

 

 

 

 

 

 

79

Heat reclaim mode fault, circuit A

More than two consecutive pumpdown

Circuit A stays in cooling mode

No

Manual

Leak or heat reclaim or drain

 

 

sequences not successful

 

 

 

solenoid shut-off valve fault

80

Heat reclaim mode fault, circuit B

Ditto

Circuit B stays in coolng mode

No

Manual

Ditto

81

High pressure fault, circuit A

Circuit operating and discharge pressure Unit shut down

No

Manual, the high

Fan circuit fault, air or

 

 

exceeds the high pressure cut-out point

 

 

pressure command

condenser temperature too

 

 

 

 

 

must be reset

high

 

 

 

 

 

manually by the

 

 

 

 

 

 

button on the HP

 

 

 

 

 

 

pressure switch

 

82

High pressure fault, circuit B

Ditto

Ditto

No

Ditto

Ditto

83

Maintenance alert

A maintenance alert is active

None

 

Manual

 

1.Charge too low

2.Water loop too low

3.Air filter maintenance delay elapsed

4.Pump 1 maintenance delay elapsed

5.Pump 2 maintenance delay elapsed

6.Water filter maintenance delay elapsed

34

Image 34
Contents Installation, operation and maintenance instructions 30GK Series PRO-DIALOG ControlTable of Contents Safety Considerations Diagnostics Troubleshooting General Safety ConsiderationsAvoiding electrocution General Description Abbreviations usedElectronic boards Hardware DescriptionGeneral Control board Control boxGreen LED Board addressesRed LED Orange LED CCN/clock boardCondenser entering and leaving water temperature sensors Evaporator entering water temperature sensorEvaporator leaving water temperature sensor Heat reclaim condenser entering/leaving water temperaturesAvailable Terminals Description Connector Terminal ChannelUser connections RemarksMain interface Setting UP PRO-DIALOG Plus ControlLocal interface general features Main Interface Button Name DescriptionDescription Stopping the unit in local modeUnit start/stop control Starting unit and selecting an operating typeSelecting a menu Modifying the value of a parameter/access to a sub- menuMenus Selecting a menu itemMenu StructureMenu tree StatusDescription of the Information menu Information Menu Format Units DescriptionDescription of the Pressures menu Description of the Temperatures menuTemperatures Menu Format Units Comments Pressures Menu Format Units CommentsDescription of the Setpoints menu Setpoints Menu Format Units Range CommentsMenu description Description of the Inputs menuDescription of the Outputs/Tests menu General Inputs Menu Format Units CommentsFormat Units Description Password Description of the Configuration menu GeneralManual tests SUB-MENU Period Configuration SUB-MENU Holiday ConfigurationDescription of the User 1 Configuration sub-menu User 1 Configuration SUB-MENU Format Units Default CommentsDescription of Date and Time configuration sub Menu Description of the User 2 Configuration sub-menuDate & Time Configuration SUB-MENU Format Comments Description of the Broadcast sub-menu Typical timer programDescription of the Holidays sub-menus Item # Format CommentsBroadcast Configuration SUB-MENU Item # Format Comments Description of the Alarms menuDescription of the Alarms History menu Alarms Menu Item # Format DescriptionRuntime menu description Description of the Runtimes 2 menu Maintenance menu descriptionDescription of the Runtimes 1 menu Start/stop control Chilss Contact Type Mode ShutdownPRO-DIALOG Plus Control Operation Heating/cooling selectionEvaporator heater control Evaporator water pump control Control interlock contactCondenser water pump control Control pointCapacity control Demand limit by 0-10 V d.c. signalDemand limit Determining the lead circuitHead pressure control on air-cooled units Slave compressor start-up sequenceControlling the EXV Head pressure control on water-cooled unitsPumping down Master/slave assemblyHigh pressure load shedding function Controlling Pro-Dialog Plus units with a System ManagerResetting alarms Diagnostics TroubleshootingDisplaying alarms Optional heat reclaim moduleAlarm codes Alarm Code DescriptionsCCN Compressor protection devices Compressor faults 6.4.1.1 GeneralDGT only for units with low-temperature option Starter Guard

30GK specifications

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