Carrier 30GTR Specifications

Controls, Start-Up, Operation,Service, and TroubleshootingSAFETY CONSIDERATIONSInstalling, starting up, and servicing this equipment canbe hazardous d

CEPL130346-01STATUSLENJ1J2J4J3J5J6J7J8J9J10CCNRED LED - STATUS GREEN LED -LEN (LOCAL EQUIPMENT NETWORK)YELLOW LED -CCN (CARRIER COMFORT NETWORK)Fig. 5

OPERATING DATASensors —The electronic control uses 4 to 10 ther-mistors to sense temperatures for controlling chiller opera-tion. See Table 2. These s

040-070080-110 AND ASSOCIATED MODULAR UNITS 130-210 AND ASSOCIATED MODULAR UNITS**When thermistor is viewed from perspective where the compressor is o

LEGENDEXV — Electronic Expansion ValveFig. 9 — Compressor Thermistor Locations (T7 and T8)Fig. 10 — Typical Thermistor Location (30GTN,R210, 315A, 390

T10 — REMOTE SPACE TEMPERATURE SENSOR —Sensor T10 (part no. HH51BX006) is an accessory sensorthat is remotely mounted in the controlled space and used

Thermostatic Expansion Valves (TXV) —Model 30GTN,R040-110 units are available from the fac-tory with conventional TXVs with liquid line solenoids. The

Electronic Expansion Valve (EXV) (See Fig. 14)— Standard units are equipped with a bottom seal EXV. Thisdevice eliminates the use of the liquid line s

The capacity routine runs every 30 seconds. The routineattempts to maintain the Control Point at the desired set point.Each time it runs, the control

Table 5A — Part Load Data Percent Displacement, Standard UnitsUNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displacement(Approx)Compr

Table 5A — Part Load Data Percent Displacement, Standard Units (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displacement(Appro

CONTENTS (cont)PageHead Pressure Control ...27• COMFORTLINK™ UNITS (With EXV)• UNITS WITH TXVPumpout ...

Table 5A — Part Load Data Percent Displacement, Standard Units (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displacement(Appro

Table 5B — Part Load Data Percent Displacement, With Accessory UnloadersUNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displacement(Ap

Table 5B — Part Load Data Percent Displacement, With Accessory Unloaders (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displace

Table 5B — Part Load Data Percent Displacement, with Accessory Unloaders (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displace

Table 5B — Part Load Data Percent Displacement, With Accessory Unloaders (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displace

Table 5B — Part Load Data Percent Displacement, With Accessory Unloaders (cont)UNIT30GTN,GTRCONTROLSTEPSLOADING SEQUENCE A LOADING SEQUENCE B%Displace

MINUTES LEFT FOR START — This value is displayedonly in the network display tables (i.e., Service Tool,Comfortworkst) and represents the amount of tim

Head Pressure ControlCOMFORTLINK™ UNITS (With EXV) — The Main BaseBoard (MBB) controls the condenser fans to maintain thelowest condensing temperature

FAN ARRANGEMENTFANNO.FAN RELAY NORMAL CONTROL30GTN,R040-0501 — Compressor No. A12 — Compressor No. B13 A1 First Stage of Condenser Fans4 B1 Second Sta

Marquee Display Usage (See Fig. 18 andTables 6-24) —The Marquee display module providesthe user interface to the ComfortLink™ control system. Thedispl

MAJOR SYSTEM COMPONENTSGeneral —The 30GTN,R air-cooled reciprocating chill-ers contain the ComfortLink™ electronic control system thatcontrols and mon

Table 6 — Marquee Display Menu Structure)RUNSTATUSSERVICETESTTEMPERATURES PRESSURESSETPOINTSINPUTS OUTPUTS CONFIGURATIONTIMECLOCKOPERATINGMODESALARMSA

Table 7 — Run Status Mode and Sub-Mode DirectorySUB-MODEKEYPADENTRYITEM DISPLAY ITEM EXPANSION COMMENTVIEWENTEREWT XXX.X °F ENTERING FLUID TEMPLWT XXX

Table 8 — Service Test Mode and Sub-Mode DirectorySUB-MODEKEYPADENTRYITEM DISPLAY ITEM EXPANSION COMMENTTESTENTERON/OFF SERVICE TEST MODE Use to Enabl

Table9—Temperature Mode and Sub-Mode DirectorySUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTUNITENTERCEWT XXX.X °F COOLER ENTERING FLUIDCLW

Table 13 — Inputs Mode and Sub-Mode DirectorySUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTGEN.IENTERSTST STRT/STOP START/STOP SWITCH Enabl

Table 14 — Outputs Mode and Sub-Mode DirectorySUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTGEN.OENTERC.PMP ON/OFF COOLER PUMP RELAYH.GAS O

Table 15 — Configuration Mode and Sub-Mode Directory (cont)SUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTUNITENTERTYPE X UNIT TYPE Default:

Table 15 — Configuration Mode and Sub-Mode Directory (cont)SUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTOPT2ENTERCTRL X CONTROL METHOD Defa

Table 16 — Example of Temperature Reset (Outdoor Air) ConfigurationSUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTRSETENTERCRST 0 COOLING RES

Table 17 — Example of Configuring Dual Chiller ControlSUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTRSETENTERCRST 0LLDY 5 LAG START DELAYENT

It is important when connecting to a CCN communicationbus that a color coding scheme be used for the entire net-work to simplify the installation. It

Table 18 — Example of Compressor Lead/Lag ConfigurationSUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTOPT2ENTERCTRL 0 CONTROL METHODCCNA 1CCN

Table 20 — Setting an Occupied Time ScheduleSUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENTSCHDENTERMON.O 00.00 MONDAY OCCUPIED TIME TIME IN

Table 22 — Operating ModesMODE NO. ITEM EXPANSION DESCRIPTION01 FSM CONTROLLING CHILLER Flotronic™ System Manager (FSM) is controlling the chiller02 W

Table 23 — Alarms Mode and Sub-Mode DirectorySUB-MODE KEYPAD ENTRY ITEM ITEM EXPANSION COMMENTCRNTENTERAXXX or TXXX CURRENTLY ACTIVE ALARMSAlarms are

Table 25 — Configuring Temperature ResetMODEGREEN LED)KEYPADENTRYSUB-MODEKEYPADENTRYITEM DISPLAYITEMEXPANSIONCOMMENTCONFIGURATIONENTERDISPENTERTEST ON/

Demand Limit — Demand Limit is a feature that allowsthe unit capacity to be limited during periods of peak energyusage. There are 3 types of demand li

TROUBLESHOOTINGCompressor Protection Control System (CPCS)Board —The compressor protection board controls thecompressor and compressor crankcase heate

3. Make sure that thermistor leads are connected to the properpin terminals at the J5 terminal strip on EXV board andthat thermistor probes are locate

Table 27 — Alarm and Alert CodesALARM/ALERTCODEALARMORALERTDESCRIPTIONWHY WAS THISALARMGENERATED?ACTION TAKENBY CONTROLRESETMETHODPROBABLECAUSE51 Aler

Table 27 — Alarm and Alert Codes (cont)ALARM/ALERTCODEALARMORALERTDESCRIPTIONWHY WAS THISALARMGENERAED?ACTION TAKENBY CONTROLRESETMETHODPROBABLECAUSE1

Table 4 — Output RelayRELAY NO. DESCRIPTIONK0 (MBB)Energize Compressor A1 and OFM1 (040-110*)Energize Liquid Line Solenoid Valve for Ckt A (if used)(0

Table 27 — Alarm and Alert Codes (cont)ALARM/ALEERTCODEALARMORALERTDESCRIPTIONWHY WAS THISALARmGENERATED?ACTION TAKENBY CONTROLRESETMETHODPROBABLECAUS

Table 27 — Alarm and Alert Codes (cont)ALARM/ALEERTCODEALARM ORALERTDESCRIPTIONWHY WAS THISALARmGENERATED?ACTION TAKENBY CONTROLRESETMETHODPROBABLECAU

SERVICEELECTRIC SHOCK HAZARD.Turn off all power to unit before servicing.The ENABLE/OFF/REMOTE CONTACTswitch on control panel does not shut off con-tr

Removing the cooler can be accomplished in one of 2 ways,depending on the jobsite. Either continue sliding the coolertoward the end of the unit opposi

Tube Plugging — A leaky tube can be plugged until retub-ing can be done. The number of tubes plugged determineshow soon cooler must be retubed. Tubes

Tightening Cooler Head BoltsGasket Preparation — When reassembling cooler heads, al-ways use new gaskets. Gaskets are neoprene-based and arebrushed wi

Refrigerant Feed Components — Each circuit hasall necessary refrigerant controls.ELECTRONIC EXPANSION VALVE (EXV) — A cutawayview of valve is shown in

NOTE: The EXV orifice is a screw-in type that can be re-moved for inspection and cleaning. Once the top cover hasbeen removed, the EXV motor may be tak

REPLACING THERMISTORS T1, T5, T6, T7, AND T8 —Add a small amount of thermal conductive grease to ther-mistor well. Thermistors are friction-fit thermis

Table 30A — 5K Thermistor Temperatures (°F) vs Resistance/Voltage Drop(For Thermistors T1-T9)TEMP(F)VOLTAGEDROP(V)RESISTANCE(Ohms)−25 4.538 98,010−24

Fig.1—Typical Control Box (080-110 and Associated Modular Units Shown)6

Table 30B — 5K Thermistor Temperatures (°C) vs Resistance/Voltage Drop(For Thermistors T1-T9)TEMP(C)VOLTAGEDROP(V)RESISTANCE(Ohms)−32 4.547 100 260−31

Table 31A — 10K Thermistor Temperatures (°F) vs Resistance/Voltage Drop(For Thermistor T10)TEMP(F)VOLTAGEDROP(V)RESISTANCE(Ohms)−25 4.758 196,453−24 4

Table 31B — 10K Thermistor Temperatures (°C) vs Resistance/Voltage Drop(For Thermistor T10)TEMP(F)VOLTAGEDROP(V)RESISTANCE(Ohms)−32 4.762 200,510−31 4

Safety Devices — Chillers contain many safety de-vices and protection logic built into electronic control. Fol-lowing is a brief summary of major safe

Relief Devices — Fusible plugs are located in each cir-cuit to protect against damage from excessive pressures.HIGH-SIDE PROTECTION — One device is lo

START-UP AND OPERATIONNOTE: Refer to Start-Up Checklist on pages CL-1 to CL-8.Actual Start-Up — Actual start-up should be doneonly under supervision o

Consult application data section in the Product Data lit-erature and job design requirements to determine flow raterequirements for a particular instal

APPENDIX A — CCN TABLESUNIT (Configuration Settings)DESCRIPTION STATUS DEFAULT UNITS POINT1 Unit Type 1 = Air Cooled2 = Water Cooled3 = Split System4 =

CONFIGURATION SCREEN (TYPE 10)OPTIONS2 (Options Configuration)DESCRIPTION STATUS DEFAULT UNITS POINT1 Control Method 0 = Switch1 = 7 day sched.2 = Occu

RESETCON (Temperature Reset and Demand Limit)DESCRIPTION STATUS DEFAULT UNITS POINT1 COOLING RESET2 Cooling Reset Type 0 = No Reset1 = 4-20 ma input2

Fig.2—24VControl Schematic, Unit Sizes 040-0707

GENUNIT (General Unit Parameters)DESCRIPTION STATUS UNITS POINT FORCEABLE1 Control Mode 0 = Service Test1 = OFF - local control2 = OFF-CCN control3 =

CIRCB AN (Circuit B Analog Parameters)DESCRIPTION STATUS UNITS POINT FORCEABLE1 Circuit B Analog Values2 Percent Total Capacity 0-100 % CAPB TN3 Perce

STRTHOURDESCRIPTION STATUS UNITS POINT1 Machine Operating Hours nnnnn hours HR MACH2 Machine Starts nnnnn CY MACH34 Circuit A Run Hours nnnnn hours HR

CURRMODSDESCRIPTION STATUS UNITS POINT1 FSM controlling chiller ON/OFF MODE 12 WSM controlling chiller ON/OFF MODE 23 Master/Slave control ON/OFF MODE

CSM/FSM EQUIPMENT TABLE (Type 621H, Block 2)LINE DESCRIPTION POINT1 Chiller Status0 = Chiller is off1 = Valid run state in CCN mode2 = Recycle active3

Copyright 1999 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

START-UP CHECKLIST FOR COMFORTLINK™ CHILLER SYSTEMS(Remove and use for job file)A. Preliminary InformationJOB NAMELOCATIONINSTALLING CONTRACTORDISTRIBU

B. Preliminary Equipment Check (YES or NO)IS THERE ANY SHIPPING DAMAGE?IF SO, WHEREWILL THIS DAMAGE PREVENT UNIT START-UP?HAVE COMPRESSOR BASE RAIL IS

C. Unit Start-Up (cont)CHECK VOLTAGE IMBALANCE: AB AC BCAB + AC + BC (divided by 3) = AVERAGE VOLTAGE = VMAXIMUM DEVIATION FROM AVERAGE VOLTAGE =(MAX.

Fig.3—24VControl Schematic, Unit Sizes 080-110, 230B-315B8

C. Unit Start-Up (cont)TO START THE CHILLER: (insert check mark as each item is completed)TURN THE EMERGENCY ON/OFF SWITCH (SW2) TO ON POSITION.LEAVE

C. Unit Start-Up (cont)PRESS ESCAPE KEY TO DISPLAY ‘OPT1’. PRESS DOWN ARROW KEY TO DISPLAY ‘OPT2’. PRESS ENTER KEY.RECORD CONFIGURATION INFORMATION BE

C. Unit Start-Up (cont)PRESS ESCAPE KEY TO DISPLAY ‘RSET’. PRESS DOWN ARROW KEY TO DISPLAY ‘SLCT’. PRESS ENTER KEY.RECORD CONFIGURATION INFORMATION BE

C. Unit Start-Up (cont)USE ESCAPE/ARROW KEYS TO ILLUMINATE CONFIGURATION LED. PRESS ENTER TO DISPLAY ‘DISP’. PRESSENTER AGAIN TO DISPLAY ‘TEST’ FOLLOW

Copyright 1999 Carrier CorporationManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and w

Fig.4—24VControl Schematic, Unit Sizes 130-210, 230A-315A, 330A/B-420A/B9