Carrier PRO-DIALOG Plus 30GK Series Specifications Page 1

30GX and 30HXC seriesPRO-DIALOG ControlScrew-Compressor Air- andWater-Cooled Liquid Chillers50 HzInstallation, operation and maintenance in

10Earthed 24 V a.c.3.4.14 - Connection to the CCNAn RS485 bus is used for connection to the CCN. The CCNconnector is located inside the control box on

11Main interfaceBlock 1 Block 2Block 3Block 4AkPakPaBAPRO-DIALOGMENUkPaBkPakPa4 - SETTING UP PRO-DIALOG PLUS CONTROL4.1 - GeneralThe local interface

12OPERATING TYPEBlock 2 Display DescriptionLOFF Local Off: the unit is halted in local mode.L-C1 Local operation - Local On - Cooling Setpoint 1: the

135.65.95.85.7123004.2.3.3 - Modifying the value of a parameterPress the button to change to modification mode. Thislets you correct the value of a

14ITEM INFORMATION TEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATIONS ALARMS ALARMS HIST. OPERATING LOG0 Operating Evaporator Circuit A Co

15MODE # MODE NAME DESCRIPTION1 Local Off The unit has stopped in local mode because operating typeLocal Off (LOFF) has been selected with the operati

16OPERATION PRESS BLOCK 3 BLOCK 1 BLOCK 2BUTTON LED DISPLAY DISPLAYHold down the MENU buttonuntil the LED for INFORMA-TION lights.Press one of the arr

174.2.5 - Description of the TEMPERATURES menuThis menu displays the unit operating temperatures. Alltemperatures are displayed in degrees Celsius. Ac

18Item 4 Reclaim setpointThis item is used to display and modifythe reclaim setpoint. As in item 3, it isused to control condensation.Limiting values

19The reset is calculated as follows if thevalue of the “Voltage for zero reset”exceeds the value of the “Voltage formaximum reset”:• The reset is zer

2Table of contents1 - SAFETY CONSIDERATIONS ...

20000810.08 0.088 6.60.18 6.69 0.09 0.099 5.00.19 5.09 5.012 0.012 0.01212 3.00.112 3.0Let us assume that the 0-10 V d.c signalcomes from a calibrated

21Sample T reset configuration:In this example, the cooling setpoint startsto be reset with effect from a T at theevaporator of 5.0°C (full load) up

22Item 4 Demand limit contact statusWhen closed this contact limits thedemand of the unit by reference to thevalue of the demand limit setpoint, if th

23OPERATION PRESS BLOCK 3 BLOCK 1 BLOCK 2KEY LED DISPLAY DISPLAYHold down the MENU button untilthe LED for OUTPUTS/TESTSlights.Press the button to

24Item 0 PasswordA password must be entered in order toaccess the test function or modify a userconfiguration. The password has adefault value of 11.

25Item 9 CCN bus numberDefault: 0Range: 0 to 239NOTE: No two network elements can have the same elementnumber and bus number at the same time.4.2.11

26 ITEM FORMAT DESCRIPTION0* nnn Alarms history 11* nnn Alarms history 22* nnn Alarms history 33* nnn Alarms history 44* nnn Alarms history 55* nnn Al

274.3.2 - Description of the LEDsLED INDICATION WHEN LITGreen LED: the unit is authorised to start or is already runningRed LED:• Lit = circuit A or u

285.3 - Evaporator water pump controlThe evaporator water pump is started when the unit is in therunning mode described above or in delay at start-up

29• By reference to a limiting signal from a user-controlled volt-free contact: the capacity of the unit cannot exceed thedemand limit setpoint (which

34.2.10 - Description of the CONFIGURATION menu ...

305.12 - Motor cooling valve controlThe temperature of the motor windings is controlled to asetpoint of 85°C. This is achieved by cycling of the motor

31All control commands to the master/slave assembly (start/stop,setpoint, load shedding, etc.) are handled by the unit which isconfigured as the maste

32OPERATION PRESS BLOCK 3 BLOCK 1 BLOCK 2KEY LED DISPLAY DISPLAYHold down the MENU buttonuntil the LED for Alarms lights.Block 2 displays the number o

33ALARM CODE DESCRIPTIONSAlarm Description Why was this alarm Action taken Reset type Probable causecode generated? by the control1 Evaporator enterin

34Alarm Description Why was this alarm Action taken Reset type Probable causecode generated? by the control46 Oil solenoid failure, compressor A1 Oil

35ALARM CODE DESCRIPTIONS (cont.)Alarm Description Why was this alarm Action taken Reset type Probable causecode generated? by the control82 Communica

.Order No. 13056-76, 03 1999. Supersedes order No.: 13056-76, April 1998 Manufactured by: Carrier S.A., Montluel, France.Manufacturer reserves the ri

41 - SAFETY CONSIDERATIONS1.1 - GeneralInstallation, start-up and servicing of equipment can behazardous if factors particular to the installation a

5Fan start-up moduleLED - Light Emitting DiodeLoader - Compressor capacity stepLOFF - Operating type: Local offrEM - Operating type: by remote control

61 2 3 4 5 6 7 8OPENSlave board addressesBOARD DIP SWITCH (0 = open)12345678Board 4xDO #1 EXV circuit A 0 1 0 00010Board 4xDO #2

7NOTE: The external connector of the EXV must be cleaned andcoated with silicone grease (Part No. 397 EE) to keep outcondensation and prevent corrosio

824 V a.c. supply24 V a.c. supplyCon-tactorPumpEconomizer pressure sensorsThese sensors are used to measure the intermediate pressurebetween high and

9Start/stop contactSetpoint selection contactHeat/cool contactHeat reclaim selection contactDemand limit contactEvaporator water loopcontrol contact3.