Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300071-01 Printed in U.S.A. Form 30XW-3T Pg 1 8-12 Replaces: 30XW-2T

Controls, Start-Up, Operation, Service and Troubleshooting

CONTENTSPage

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . .2,3GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Conventions Used in This Manual . . . . . . . . . . . . . . . . 3Display Module Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 TOUCH PILOT DISPLAY NAVIGATOR DISPLAY MODULECONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-18General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Main Base Board (MBB) . . . . . . . . . . . . . . . . . . . . . . . . . . 9Compressor Protection Module (CPM) . . . . . . . . . . 10Electronic Expansion Valve (EXV) Board . . . . . . . . 13Minimum Load Valve (MLV) / Condenser Board. . 15Enable-Off-Remote Contact Switch (SW1) . . . . . . . 16Emergency On/Off Switch (SW2) . . . . . . . . . . . . . . . . 16Energy Management Module (EMM) . . . . . . . . . . . . . 16Local Equipment Network . . . . . . . . . . . . . . . . . . . . . . . 17Board Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Touch Pilot Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Control Module Communication. . . . . . . . . . . . . . . . . 17 RED LED GREEN LED YELLOW LEDCarrier Comfort Network (CCN) Interface. . . . . . . 18Remote Alarm and Alert Relays . . . . . . . . . . . . . . . . . 18CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-46Touch Pilot Operation Configuration Tables. . . 18Machine Control Methods . . . . . . . . . . . . . . . . . . . . . . . 20Machine On/Off Control . . . . . . . . . . . . . . . . . . . . . . . . . 20 TOUCH PILOT MACHINE CONTROL NAVIGATOR DISPLAY MACHINE CONTROLEntering Fluid Control Option . . . . . . . . . . . . . . . . . . . 25Heat Machine Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Cooling Set Point Selection . . . . . . . . . . . . . . . . . . . . . 25 SET POINT OCCUPANCYHeating Set Point Selection . . . . . . . . . . . . . . . . . . . . . 28Heating Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Chilled Water Fluid Type Selection . . . . . . . . . . . . . . 28 FRESH WATER BRINE OR GLYCOL OPERATIONCooler Pump Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 COOLER PUMP CONTROL CONFIGURATIONSCondenser Pump Control . . . . . . . . . . . . . . . . . . . . . . . 30 CONDENSER PUMP CONTROL CONFIGURATIONSMachine Start Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Circuit/Compressor Staging and Loading . . . . . . . 30 CIRCUIT/COMPRESSOR STAGING CIRCUIT/COMPRESSOR LOADINGMinimum Load Control . . . . . . . . . . . . . . . . . . . . . . . . . . 31Dual Chiller Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 DUAL CHILLER CONTROL FOR PARALLEL

APPLICATIONS DUAL CHILLER PUMP CONTROL FOR PARALLEL

CHILLER APPLICATIONS

Page DUAL CHILLER CONTROL FOR SERIES

APPLICATIONS DUAL CHILLER PUMP CONTROL FOR SERIES

CHILLER APPLICATIONSRamp Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 RETURN WATER RESET SPACE TEMPERATURE RESET 4-20 mA TEMPERATURE RESETDemand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 SWITCH CONTROLLED DEMAND LIMIT EXTERNALLY POWERED CAPACITY BASED

DEMAND LIMIT EXTERNALLY POWERED CURRENT BASED

DEMAND LIMIT CCN LOADSHED CONTROLLED DEMAND LIMITIce Storage Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Broadcast Configuration . . . . . . . . . . . . . . . . . . . . . . . . 42 ACTIVATE BROADCAST ACKNOWLEDGERAlarm Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 ALARM ROUTING CONTROL ALARM EQUIPMENT PRIORITY COMMUNICATION FAILURE RETRY TIME RE-ALARM TIME ALARM SYSTEM NAMEDaylight Saving Time Configuration . . . . . . . . . . . . . 43Capacity Control Overrides . . . . . . . . . . . . . . . . . . . . . 44Head Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . 46 LOW CONDENSER FLUID TEMPERATURE HEAD

PRESSURE CONTROL OPTIONPRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47System Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-58Actual Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 TEMPERATURES VOLTAGE MINIMUM FLUID LOOP VOLUME FLOW RATE REQUIREMENTSOPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58-65Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . 58Dual Chiller Sequence of Operation . . . . . . . . . . . . . 58 PUMP OPERATIONOperating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 THERMISTORS TRANSDUCERSSERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65-73Economizer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 65Electronic Expansion Valve (EXV) . . . . . . . . . . . . . . . 65 MAIN EXV CONTROL

AQUAFORCE30XW150-400

Water-Cooled Liquid Chillers

2CONTENTS (cont)Page

ECONOMIZER EXV CONTROL EXV TROUBLESHOOTING PROCEDURE INSPECTING/OPENING ELECTRONIC

EXPANSION VALVECompressor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 67 COMPRESSOR OIL SYSTEMCooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 SUCTION SERVICE VALVE LOW FLUID TEMPERATURE LOSS OF FLUID FLOW PROTECTION TUBE PLUGGING RETUBING TIGHTENING COOLER HEAD BOLTS INSPECTING/CLEANING HEAT EXHANGERS WATER TREATMENT CHILLED WATER FLOW SWITCH CONDENSER WATER FLOW SWITCH AND

THERMISTORSRefrigerant Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 LEAK TESTING REFRIGERANT CHARGESafety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 COMPRESSOR PROTECTION COOLER PROTECTIONRelief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 PRESSURE RELIEF VALVES INSPECTION AND MAINTENANCEMAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Recommended Maintenance Schedule . . . . . . . . . . 73TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 73-90Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 DIAGNOSTIC ALARM CODES AND POSSIBLE

CAUSESService Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88APPENDIX A TOUCH PILOT DISPLAY TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . 91-109

APPENDIX B NAVIGATOR DISPLAYTABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110-122

APPENDIX C CCN TABLES . . . . . . . . . . . . . . 123-137APPENDIX D 30XW150-400 CPM

DIP SWITCH ADDRESSES. . . . . . . . . . . . . . . . 138-140APPENDIX E PIPING AND

INSTRUMENTATION . . . . . . . . . . . . . . . . . . . . . . 141, 142APPENDIX F GLOBAL TIME SCHEDULE

CONFIGURATION FOR i-Vu DEVICE AND CSMCONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . 143-145

APPENDIX G MAINTENANCE SUMMARY AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . 146-149

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150START-UP CHECKLIST

FOR 30XW LIQUID CHILLERS . . . . . . . .CL-1 to CL-7

SAFETY CONSIDERATIONSInstalling, starting up, and servicing this equipment can be

hazardous due to system pressures, electrical components, andequipment location. Only trained, qualified installers and ser-vice technicians should install, start up, and service this equip-ment. When working on this equipment, observe precautions inthe literature, on tags, stickers, and labels attached to the equip-ment, and any other safety precautions that apply. Follow allsafety codes. Wear safety glasses and work gloves. Use care inhandling, rigging, and setting this equipment, and in handlingall electrical components.

WARNINGElectrical shock can cause personal injury and death. Shutoff all power to this equipment during installation and ser-vice. There may be more than one disconnect switch. Tagall disconnect locations to alert others not to restore poweruntil work is completed.

WARNINGDO NOT VENT refrigerant relief valves within a building.Outlet from relief valves must be vented in accordancewith the latest edition of ANSI/ASHRAE (AmericanNational Standards Institute/American Society of Heating,Refrigerating and Air Conditioning Engineers) 15 (SafetyCode for Mechanical Refrigeration). The accumulation ofrefrigerant in an enclosed space can displace oxygen andcause asphyxiation. Provide adequate ventilation inenclosed or low overhead areas. Inhalation of high concen-trations of vapor is harmful and may cause heart irregulari-ties, unconsciousness or death. Misuse can be fatal. Vaporis heavier than air and reduces the amount of oxygen avail-able for breathing. Product causes eye and skin irritation.Decomposition products are hazardous.

WARNINGDO NOT USE TORCH to remove any component. Systemcontains oil and refrigerant under pressure. To remove a component, wear protective gloves and gog-gles and proceed as follows:a. Shut off electrical power to unit.b. Recover refrigerant to relieve all pressure from sys-

tem using both high-pressure and low pressure ports.c. Traces of vapor should be displaced with nitrogen

and the work area should be well ventilated. Refrig-erant in contact with an open flame produces toxicgases.

d. Cut component connection tubing with tubing cutterand remove component from unit. Use a pan to catchany oil that may come out of the lines and as a gagefor how much oil to add to the system.

e. Carefully unsweat remaining tubing stubs when nec-essary. Oil can ignite when exposed to torch flame.

Failure to follow these procedures may result in personalinjury or death.

CAUTIONDO NOT re-use compressor oil or any oil that has beenexposed to the atmosphere. Dispose of oil per local codesand regulations. DO NOT leave refrigerant system open toair any longer than the actual time required to service theequipment. Seal circuits being serviced and charge withdry nitrogen to prevent oil contamination when timelyrepairs cannot be completed. Failure to follow these proce-dures may result in damage to equipment.

CAUTIONThis unit uses a microprocessor-based electronic controlsystem. Do not use jumpers or other tools to short outcomponents, or to bypass or otherwise depart from rec-ommended procedures. Any short-to-ground of the con-trol board or accompanying wiring may destroy theelectronic modules or electrical components.

3GENERALThis publication contains controls, operation, start-up, ser-

vice and troubleshooting information for the 30XW150-400water-cooled liquid chillers with electronic controls. The30XW chillers are equipped with ComfortLink controls andelectronic expansion valves. The AquaForce 30XW chillersoffer two different user interface devices, the Touch Pilotdisplay and the Navigator display.

Conventions Used in This Manual The follow-ing conventions for discussing configuration points for theNavigator module and Touch Pilot display will be used inthis manual.

Point names for the Touch Pilot display will be shown inbold. See Appendix A for a complete list of point names. Itemnames for the Navigator module will be shown in bold ital-ics. See Appendix B for the complete path name preceding theitem name. The point and item names in Appendices A and Bwill be listed in alphabetical order and the path name for eachwill be written with the mode name first, then any sub-modes,each separated by an arrow symbol ( .

This path name will show the user how to navigate through theNavigator module or the Touch Pilot display to reach the de-sired configuration. The user would scroll through the modes andsub-modes using the and keys on the Navigator dis-play. For the Touch Pilot display, the user would simply touchthe menu item on the screen. The arrow symbol in the path namerepresents pressing to move into the next level of themenu structure for the Navigator module, or touching the menuitem on the screen for the Touch Pilot display.

When a value is included as part of the point name, it will beshown after the point name after an equals sign. If the valuerepresents a configuration setting, an explanation will beshown in parentheses after the value. The Touch Pilot namewill be shown first with the Navigator name following. Asan example, (Staged Loading Sequence = 1, LLCS = Circuit A leads).

Press the and keys simultaneously onthe Navigator module to display an expanded text descriptionof the point name or value. The expanded description is shown inthe Navigator display tables (Appendix B) but will not beshown with the path names in text. The Touch Pilot display will

show an expanded description of the point name. To view the ex-panded point name for the Touch Pilot display refer to Appen-dix A.

The Touch Pilot display configures the unit via the CCN(Carrier Comfort Network) Tables, which are located in Ap-pendix C of this manual.

Display Module UsageTOUCH PILOT DISPLAY The Touch Pilot displayis the standard user interface for the AquaForce 30XW chillerswith the ComfortLink control system. The display includes alarge LCD (liquid crystal display) touch screen for display anduser configuration, a Start/Stop button, and an Alarm IndicatorLED (light-emitting diode). See Fig. 1.

The Touch Pilot display can be used to access variousCarrier Comfort Network devices. For operation under thesecircumstances, contact your Carrier representative.

Operation of the Touch Pilot display is driven from thedisplays on the touch screen. The Touch Pilot display usesthe following screen buttons to allow the user to operate thedisplay and navigate within and between screens.

BACK returns to the next higher screen in thehierarchy.HOME displays the Default Group Display screenfor Touch Pilot display. The Default Screen is a

user-configured display of up to 9 points on each of 8 screens.This allows for quick access to various, frequently viewedpoints, without navigating through the Main Menu structure.This button is available at all menu levels and returns the userto the first Default Group Display screen.

MAIN MENU displays the Main Menu screen. Thisallows access for viewing and configuration, where

possible, of all points supported by the controller. This includespoints such as set point and operational configuration. Thisbutton is available at all menu levels and returns the user to theMain Menu screen.

PREVIOUS moves the user to the next earlierscreen in a group of sequential screens of the same

type.NEXT advances the user to the next screen in agroup of sequential screens of the same type.OK agrees with, or says yes to a prompt and per-forms the appropriate processing.NO rejects, or says no to a prompt and performsthe appropriate processing.CANCEL terminates an ongoing action and returnsto the current screen without any other processing.CLEAR DATA clears the data value in a data entrydialog box. This button is used to clear incorrect data.RESET DATA zeros the data value in a data entrydialog box.

CAUTIONTo prevent potential damage to heat exchanger tubes,always run fluid through heat exchanger when adding orremoving refrigerant charge. Use appropriate antifreezesolutions in evaporator and condenser fluid loops to pre-vent the freezing of heat exchangers or interconnecting pip-ing when the equipment is exposed to temperatures below32 F (0 C). Proof of flow switch is factory installed on allmodels. Do NOT remove power from this chiller duringwinter shut down periods without taking precaution toremove all water from heat exchangers. Failure to properlyprotect the system from freezing may constitute abuse andmay void warranty.

CAUTIONCompressors require specific rotation. Swap any twoincoming power conductors to correct compressor rotation.Do not change factory-installed power wiring at circuitbreakers, comtactors, or compressors.

ENTER

ESCAPE ENTER

ALARMINDICATORLIGHT

START-STOPBUTTON

LCD TOUCHSCREEN

Fig. 1 Touch Pilot Display

a30-4456 (b&w)

4ADD adds the active point to a Group Displayscreen.REMOVE deletes a point from a Group Displayscreen.INCREASE modifies the value of a field within itsdefined limits or SCROLL UP shifts the screen

view up by one item.DECREASE modifies the value of a field within itsdefined limits or SCROLL DOWN shifts the screen

view down by one item.PAGE DOWN will replace the items currently onthe screen with the next group of items if the current

table or list has more data than will fit on the screen.PAGE UP will replace the items currently on thescreen with the previous group of items if the current

table or list has more data than will fit on the screen.FORCE begins the process of forcing or overridingthe value of a point.AUTO begins the process of removing a force froma point.MODIFY begins the process of modifying a config-uration value.ALARM INDICATOR LIGHT activates when anew alarm condition occurs. The alarm indicator lightLED, located on the right side of the display, remains

activated until it is manually reset using the Reset button on theMain menu.

START/STOP BUTTON enables the user to startor stop the chiller from the Touch Pilot display.See Enable-Off-Remote Contact Switch (SW1) on

page 16 for additional information.Several items are password protected. When required, a

Password dialog box will be displayed for field input of thepassword. The default password is 3333. The password can bechanged if desired.Power-Up Display When the Touch Pilot display ispowered up, it displays an initialization progress bar and at-taches (initiates communication) to the Main Base Board. TheTouch Pilot display then shows that controllers defaultGroup Display screen. See Fig. 2. This is a user-configured dis-play screen with up to 9 points on 8 separate screens. For moreinformation on adding or removing points from the Group Dis-play screen, see the Group Display Screens section on page 7.

Touch any of the screen point buttons and Point Data Dialogbox will be displayed with expanded information. In the exam-ple shown, the CTRL_PNT button in the bottom left cornerwas selected. See Fig. 2 and 3.

To exit the box, press .Main Menu Display The default screen for the Touch Pi-lot controller is the Group Display screen. To access theMain Menu, press the button. The screen shown in Fig. 4will be displayed. Selecting a button will display the screensassociated with that category. The user can also access the log-in screen from the Main Menu if needed.Touch Pilot Menu Structure The user can navigatethrough the Touch Pilot display screens by selecting the but-tons that appear on the screen. When a button is selected, eithera sub-menu or a list of point names and values will be shown.Submenus will display a list of associated point names. SeeFig. 5 for the Touch Pilot menu structure.

If the list of point names and values are shown, the top lineof the display is the table name. The line and total line counteris displayed in the upper right corner of the display. Selectingan item will cause a Point Data dialog box to appear.

Setup Menu Screen The Setup Menu screen, shown inFig. 6, is accessed by pressing the Setup button from the MainMenu. This configuration allows the user to configure the basicoperation and look of the display. Table 1 summarizes the Set-up Menu functions.

Fig. 2 Group Display Screen

Fig. 3 Point Data Dialog Box

Fig. 4 Main Menu Display

a30-4910.e

a30-4471

a30-4472

PDS-XAXQXWPDS-XAXQXW

5User interface

Group display x 8 Main menu

Status

GENUNIT

CIRCA_AN

CIRCA_D

CIRCB_AN

CIRCB_D

CIRCC_D

CIRCC_AN

STATEGEN

RECLAIM

MODES

STRTHOUR

FANHOURS

FREECOOL

QCK_TST1

QCK_TST2

SERV_TST

Setpoint Schedule

OCC1PO1S

OCC2PO2S

Service

FACTORY

FACTORY2

SERVICE1

CP_UNABL

UPDTHOUR

UPDHRFAN

MAINTCFG

Maint

LOADFACT

FANCTRL

M_MSTSLV

DEFROSTM

LAST_POR

PR_LIMIT

BOARD_PN

SERMAINT

EXV_CTRL

CUR_PHAS

OCCDEFCFM

Config

Ctrl-ID

DISPCONF

USER

MST_SLV

CFG_TAB1

CFG_TAB8

BRODEFS

OCCDEFCS

HOLIDAY

ALARMDEF

Alarms

ALARHIST

ALARHIS2

ALAM_CUR

Reset Time Attach Setup

Regional

Language

Contrast

Backlight

Calibrate

Password

Display

CCN

Login

Fig. 5 Touch Pilot Display Menu Structure

a30-4829

6Table 1 Setup MenuSETUP MENU BUTTON FUNCTION

REGIONALThis button specifies the time and date format and the base unit of measure. Time display can be configured as 12-hour AM/PM setting or as a 24-hour setting. The date can be formatted in one of 3 settings, MM-DD-YYYY (Month-Day-Year), DD-MM-YYYY (Day-Month-Year), or YYYY-MM-DD (Year-Month-Day). Units of measure can be either US (English) or Metric (SI).

LANGUAGEThis button selects the active language and font of the display. Available languages are English and Spanish (Espanol). If a preferred language is not available, additional software for the Main Base Board (MBB) and the Touch Pilot dis-play are required. Contact your Carrier representative for instructions and software.

CONTRASTThis button adjusts the LCD contrast. Press and hold the [MOON] button to increase/darken the contrast or the [STAR] button to decrease/lighten the current contrast.NOTE: Touching the screen anywhere for 5 seconds while powering-up will prompt the user to restore contrast and calibration settings to factory defaults.

BACKLIGHT This button specifies whether backlighting should be kept on at all times or turned off during inactive periods.CALIBRATE This button is used to adjust the LCD touch screen calibration. Touch the screen in the circular targets located first in the upper left and then in the lower right corner of the screen to adjust.

PASSWORDS

This button is used to configure the limited and full logged-in access system passwords. In order to change passwords, the user must be logged in with full access to view and change the passwords. All passwords must consist of 4-digits, which can be entered using the numeric keypad. Access levels and associated privileges are as follows:

Limited Logged-in Access - Provides the user with read/write access to all available tables (except service configura-tion tables, where the user will not be permitted to modify point data, and Group Display tables, where the user will not be permitted to add points.) This access level also provides read/write access to all Touch Pilot display setup proper-ties except Display, CCN, and Password.

Full Logged-in Access - Provides user with read/write access to all available tables for the attached device and all Touch Pilot display properties.

If the user does not log in, read-only access to all tables is allowed. The user will be prompted to log in when attempting to access password-required functions.

DISPLAY

This button is used to view the description data and part number from the Ctlr-ID Table and to specify the Operating Mode. The Operating mode can be configured for Equipment mode or Network mode. For Touch Pilot displays that are standard with the unit, Operating mode should not be changed from Equipment mode. Equipment mode provides access only to the chillers MBB via the Local Equipment Network (LEN) Bus. For remote access, a remote Touch Pilot display can be set to Network mode. Network mode provides access to all devices on the CCN (Carrier Comfort Network) bus.NOTE: When changing the operating mode, a power cycle is required in order for the new operating mode to take effect. The user should view and correct the following CCN data: address and baud rate, alarm acknowledger, and broadcast acknowledger designation.

CCN This button is used to configure the bus and element numbers and the baud rate of the control on the network.

Fig. 6 Setup Menu Displaya30-4474

7Setting the Time and Date The ComfortLink control has atime and date function. This can be useful for diagnostics to de-termine when alarms occur. The control is factory configuredfor the proper date and is set for the Eastern Time Zone. Thedate and time zone must be checked and corrected if necessary,to allow the machine to function on an internal time scheduleand to display a proper time and date stamp for alarms. Thetime and date is displayed on the Group Display Screen.

To change the Time and Date, press the Main Menubutton. Select Time. On the display, a day and date boxwith a time box will be shown. To change the day and date,press the day and date box. A calendar will be displayed. If thecorrect month is displayed, touch the correct date. If the wrongmonth is displayed, use the or to change to the correctmonth and select the correct date. The date will highlighted.Press to accept the change. The previous screen will bedisplayed with the corrected day and date shown. To correctthe time, use the or on the left to change the hour. Usethe or on the left to change the minutes. Continuouslytouching the or will sequence the numbers. The time isshown in a 24-hour format. To accept the changes, press the

or buttons. A Save dialog box is displayed with thewords, Do you wish to save changes? Press to acceptthe changes.

Group Display Screens The Touch Pilot display sup-ports up to eight Group Display screens. Group Displayscreens show status information along the top of the screensand 9 buttons that display 9 point names and point values thatare chosen by the user. All Group Display screen points areuser configurable. The bottom line of the screen contains navi-gation buttons that can be used to move between the GroupDisplay screens.

Pressing a point button will show that points Point Datadialog box. See Fig. 2 and 3. This box contains buttons thatremove the point from the group display and apply or remove aforce (point override). When touching any button in the displayscreen, the button will be outlined to acknowledge input. Theremay be a delay in response to input, but if the button is out-lined, do NOT press any other button until the previous inputhas been processed.

If there is a communication failure with the MBB (MainBase Board), all point buttons will be displayed in inverse vid-eo and the message Communication Failure will be displayedin the top left line of the screen.Default Group Designation The default group is the first ofthe 8 Group Display screens. This is the default screen of thedisplay. Information on this screen as well as the other 7screens can be user-modified to meet the needs of the site.To Add a Point to a Group Display From the Main Menu,press the desired menu button (Status, Setpoint, Service,Maint, or Config) and, if necessary, the sub-menu button toaccess the point to be added. Press the point button to show thesource points Point Data dialog box. See Fig. 3. From thePoint Data dialog box, press the ADD button. The display willshow the last Group Display accessed. Use the navigation but-tons to access the destination Group Display. Press an existingpoint button or a blank button to update the highlighted button

with the source points name. Press to add the highlightedpoint to the group and return to the table display.To Remove a Point from a Group Display From the PointData Dialog box, press the REMOVE button and follow theprompts. The display will return to the Group Display screenfrom which the point was removed, and the button correspond-ing to the deleted point will be blank and disabled.NAVIGATOR DISPLAY MODULE The Navigatordisplay module provides a mobile user interface to theComfortLink control system. The display has up and down ar-row keys, an key, and an key. These keysare used to navigate through the different levels of the displaystructure. Press the key until Select a Menu Item isdisplayed. Use the up and down arrow keys to move throughthe top 11 mode levels indicated by LEDs on the left side of thedisplay. See Fig. 7. See Table 2 and Appendix B for more de-tails about the display menu structure.

Once within a mode or sub-mode, a > indicates thecurrently selected item on the display screen. Pressing the

and keys simultaneously will put theNavigator module into expanded text mode where the fullmeaning of all sub-modes, items, and their values can be dis-played. Pressing the and keys when thedisplay says Select Menu Item (Mode LED level) will returnthe Navigator module to its default menu of rotating displayitems (those items in Run StatusVIEW). In addition, thepassword will be disabled, requiring that it be entered again be-fore changes can be made to password protected items. Pressthe key to exit out of the expanded text mode.

When a specific item is located, the item name appears onthe left of the display, the value will appear near the middle ofthe display and the units (if any) will appear on the far right ofthe display. Press the key at a changeable item andthe value will begin to flash. Use the up and down arrow keysto change the value, and confirm the value by pressing the

key.Changing item values or testing outputs is accomplished in

the same manner. Locate and display the desired item. Press so that the item value flashes. Use the arrow keys to

change the value or state and press the key to acceptit. Press the key to return to the next higher level ofstructure. Repeat the process as required for other items.

Items in the Configuration and Service Test modes are pass-word protected. The words Enter Password will be displayedwhen required, with 1111 also being displayed. The defaultpassword is 0111. Use the arrow keys to change each numberand press to accept the digit. Continue with theremaining digits of the password. The password can only bechanged through CCN operator interface software such asComfortWORKS, ComfortVIEW and Service Tool.Power-Up Display When the Navigator display is pow-ered up it will display:

ComfortLinkNavigator

ByCarrier

ENTER ESCAPE

ESCAPE

ENTER ESCAPE

ENTER ESCAPE

ESCAPE

ENTER

ENTER

ENTERENTER

ESCAPE

ENTER

8This indicates an initialization period while the Navigatordisplay initiates communication with the Main Base Board.Once communication is established, the default rotating dis-play will be shown. If communication is not established, theNavigator module will display:

CommunicationFailure

If the Navigator module is connected to a Main BaseBoard without software loaded, the display will remain at thepowered-up initialization display.Setting the Time and Date The ComfortLink control has atime and date function. This can be useful for diagnostics to de-termine when alarms occur. The control is factory configuredfor the proper date and for use in the Eastern Time Zone. Thecontrol must be checked and corrected if necessary. The correcttime is important if the machine is to function on an internaltime schedule and display a proper time and date stamp foralarms. The time and date will be displayed on the default ro-tating display of the Navigator module. The time and datecan also be checked and changed under the Time Clock modeas described below.

To change the time, press the arrow key to move to the cor-rect hour and press . The minutes can be changed in asimilar manner.

To check or change the date, the following items must bechecked and changed if necessary.

NOTE: WW is the current month of the controller, (01=January,02=February, etc.).XX is the current day of the monthYY is the day of the week, (01=Monday, 02-Tuesday, etc.)ZZ is the year of the century, (06=2006, 07=2007)

Changing the Unit of Measure The Navigator displayhas two options for unit of measure on the display, English orSI (metric). The factory default for the units of measure isEnglish. To change the unit of measure, the following itemmust be changed.

Changing the Display Language The Navigator displayhas five language options to select from, English, Espanol,Francais, Portugues, and Translated. The Translated option isnot supported at this time. The factory default language isEnglish. To change the display language, the following itemmust be changed.

NOTE: When the Language Selection (ConfigurationDISP LANG) variable is changed, all appropriate display

expansions will immediately change to the new language. Thefour letter/digit code will not change. No power-off or controlreset is required when reconfiguring languages.

Adjusting the Contrast The contrast of the display can beadjusted to suit ambient conditions. To adjust the contrast, enterthe LED Test mode of the device.

Pressing will access the TEST point. Pressing again will cause the OFF to flash. Use the up or

down arrow to change OFF to ON. Pressing willilluminate all LEDs and display all pixels in the view screen.Pressing and simultaneously allows theuser to adjust the display contrast. The display will read:

Adjust Contrast- - - -+ - - - - - - - - - - - - - - -Use the up or down arrows to adjust the contrast. The

screens contrast will change with the adjustment. Press to accept the change. The Navigator module will

keep this setting as long as it is plugged in to the LEN (LocalEquipment Network) bus.Adjusting the Backlight Brightness The backlight of thedisplay can be adjusted to suit ambient conditions. The factorydefault is set to the highest level. To adjust the backlight of theNavigator module, enter the LED Test mode of the device.

Pressing will access the TEST point. Pressing again will cause the OFF to flash. Use the up or

down arrow to change OFF to ON. Pressing willilluminate all LEDs and display all pixels in the view screen.Pressing the up and down arrow keys simultaneously allowsthe user to adjust the display brightness. The display will read:

Adjust Brightness- - - - - - - - - - - - - - - - - +Use the up or down arrow keys to adjust screen brightness.

Press to accept the change. The Navigator modulewill keep this setting as long as it is plugged in to the LEN bus.

ITEM ITEM EXPANSION PATH VALUEHH.MM Time of Day Time Clock TIME XX.XX

ITEM ITEM EXPANSION PATH VALUEMNTH Month of Year Time Clock DATE WWDOM Day of Month Time Clock DATE XXDAY Day of Week Time Clock DATE YYYEAR Year of Century Time Clock DATE ZZ

ITEM ITEM EXPANSION PATH VALUEMETR Metric Display Configuration DISP OFF EnglishON SI (Metric)

ITEM ITEM EXPANSION PATH VALUE

LANG Language Selection Configuration DISP

EnglishEspanolFrancaisPortuguesTranslated

ENTER

ITEM ITEM EXPANSION PATH VALUETEST Test Display LEDs Configuration DISP

ITEM ITEM EXPANSION PATH VALUETEST Test Display LEDs Configuration Mode DISP

ENTER

ENTERENTER

ENTER ESCAPE

ENTER

ENTER

ENTERENTER

ENTER

Run StatusService TestTemperaturesPressuresSetpoints

InputsOutputs

ConfigurationTime ClockOperating ModesAlarms

ENTER

ESC

MODEAlarm Status

ComfortLink

Fig. 7 Navigator Display Module

a30-3924

9Table 2 ComfortLink Navigator Display Menu Structure

CONTROLSGeneral The 30XW water-cooled liquid chillers containthe ComfortLink electronic control system that controls andmonitors all operations of the chiller. The control system iscomposed of several components as listed in the following sec-tions. All machines have a Main Base Board (MBB), Touch Pi-lot module or Navigator device, electronic expansionvalve board (EXV), auxiliary board, Compressor Protectionboard, Emergency On/Off switch, and an Enable-Off-RemoteContact switch.

Main Base Board (MBB) The MBB is the core ofthe ComfortLink control system. It contains the major portionof operating software and controls the operation of the

machine. See Fig. 8. The MBB continuously monitors input/output channel information received from its inputs and fromall other modules. The MBB receives inputs from status andfeedback switches, pressure transducers and thermistors. TheMBB also controls several outputs. Some inputs and outputsthat control the chiller are located on other boards, but aretransmitted to or from the MBB via the internal communica-tions bus. Information is transmitted between modules via a3-wire communication bus or LEN (Local Equipment Net-work). The CCN (Carrier Comfort Network) bus is also sup-ported. Connections to both LEN and CCN buses are made atTB3. For a complete description of Main Base Board inputsand outputs and their channel identifications, see Table 3.

MODERUN

STATUSSERVICE

TEST TEMPERATURES PRESSURESSET

POINTS INPUTS OUTPUTS CONFIGURATIONTIME

CLOCKOPERATING

MODES ALARMSAuto Display

(VIEW)Manual

Test Mode(TEST)

UnitTemperatures

(UNIT)Circuit A

Pressures(PRC.A)

CoolingSetpoints(COOL)

GeneralInputs

(GEN.I)Circuit AOutputs(CIR.A)

DisplayConfiguration

(DISP)Time of Day

(TIME)Operating

Control Type(SLCT)

Reset CurrentAlarms

(R.ALM)Machine

Starts/Hours(RUN)

QuickTest Mode

(QUIC)Circuit A

Temperatures(CIR.A)

Circuit BPressures(PRC.B)

HeatingSetpoints(HEAT)

Circuit BOutputs(CIR.B)

UnitConfiguration

(UNIT)Day, Date

(DATE)Operating

Modes(MODE)

CurrentAlarms(ALRM)

CompressorRun Hours

(HOUR)Circuit B

Temperatures(CIR.B)

Circuit CPressures(PRC.C)

Misc. Setpoints(MISC)

Circuit COutputs(CIR.C)

ServiceConfigurations

(SERV)Schedule 1

(SCH1)AlarmHistory

(H.ALM)Compressor

Starts(STRT)

Circuit CTemperatures

(CIR.C)GeneralOutputs(GEN.O)

OptionsConfiguration

(OPTN)Schedule 2

(SCH2)Fan Run

Hours(FAN)

Reset,Demand Limit,Master/Slave

(RSET)

Holidays(HOLI)

CompressorDisable(CP.UN)

ServiceMaintenanceConfiguration

(MCFG)Predictive

Maintenance(MAIN)

Software Versions(VERS)

221

221

221

221

195

195

195

195

195

195

195

CH1

CH2

CH3

CH4

CH11 CH12

LOCATION OFSERIAL NUMBER

CH13 CH14 CH15A

J4ANALOGINPUTSJ3

J2CJ2B

24 VAC

J1A

+ G

DISCRETEINPUTS

J5A

CH15a

11 C16J2A

TR1 TR2 TR3 TR4 TR5

CH19 CH20 CH21 CH22 CH23 CH24 CH25 CH26

J8

CH17 CH18

J5B J5C

THER

MIS

TOR

S PR

ESSU

RES

CH5

CH6

CH7

CH8

CH9

J7A

J7B

J7C

J7D

RELAYOUTPUTS

MOV1

C41 C42 C43

C32 C33 C34 C35

12/1112/11

J10

LEN

+ G -

STATUS

J9A

K1 K2D15

J6CCN

CH10

+ G SIO(LEN)

J9C J9B

+ G LEN LEN

J12 (CCN) J13 J9D

+C

+C

CH16a

+C

CH16b

Fig. 8 Main Base Board

a30-4255ef

10

Table 3 Main Base Board Inputs and Outputs

LEGEND

Compressor Protection Module (CPM) Thereis one CPM per compressor. See Fig. 9. The device controls thecompressor contactors, oil solenoid, loading and unloadingsolenoids. The CPM also monitors the compressor motor tem-perature, high pressure switch, oil level switch, discharge gastemperature, oil pressure transducer, motor current, MTA(must trip amps) setting and economizer pressure transducer(sizes 175-300, 350, 400 only). The CPM responds to com-mands from the MBB (Main Base Board) and sends the MBBthe results of the channels it monitors via the LEN (Local

Equipment Network). The CPM has three DIP switch inputbanks, Switch 1 (S1), Switch 2 (S2), and Switch 3 (S3). TheCPM board DIP switch (S1) configures the board for the typeof starter, the location and type of the current transformers andcontactor failure instructions. See Table 4 for description ofDIP switch 1 (S1) inputs. See Appendix D for DIP switchsettings.

DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINTPin Notation

Power (24 vac supply) MBB-J1, MBB-J1A,

MBB-J1B11 24 vac12 Ground

Local Equipment Network

MBB-J9A, MBB-J9B, MBB-J9C, MBBJ9D

+ RS485 Port (D+)G RS485 Port (Gnd)- RS485 Port (D-)

Carrier CommunicationNetwork

MBB-J12+ RS485 Port (D+)G RS485 Port (Gnd)- RS485 Port (D-)

Chilled Water Flow Switch CWFS Switch Cooler Flow Switch, LOCK MBB-J5B-CH1717

Demand Limit Switch No. 1 Demand Limit SW1 Switch Limit Switch 1 Status, DLS1 MBB-J4-CH13Condenser Flow Switch CDFS Switch Condenser Flow Switch, COND 16A MBB-J5A-CH16A

Circuit A Discharge Pressure Transducer DPTA Pressure Transducer Discharge Pressure, DP.A

MBB-J7A-CH65V +5 vdc Ref.S SignalR Return

Circuit B Discharge Pressure Transducer DPTB Pressure Transducer Discharge Pressure, DP.B

MBB-J7C-CH85V +5 vdc Ref.S SignalR Return

Dual Chiller LWT Thermistor DUAL 5k Thermistor CHWS Temperature, CHWS MBB-J6-CH3

Dual Set Point Input Dual Set Point Switch Remote Setpoint Switch, DUAL MBB-J4-CH12Heat/Cool Switch HC_SW Switch Heat/Cool Select Contact, HC_SW MBB-J4-CH14

Entering Water Thermistor EWT 5k Thermistor Cooler Entering Fluid, EWT MBB-J6-CH2Leaving Water Thermistor LWT 5k Thermistor Cooler Leaving Fluid, LWT MBB-J6-CH1Condenser Entering Water

Thermistor CEWT 5k Thermistor Condenser Entering Fluid, CEWT MBB-J6-CH5

Condenser Leaving Water Thermistor CLWT 5k Thermistor Condenser Leaving Fluid, CLWT MBB-J6-CH4

External Chilled Water Pump Interlock PMPI Switch Electrical Box Interlock, ELEC MBB-J4-CH15A

Circuit A Suction Pressure Transducer SPTA Pressure Transducer Suction Pressure, SP.A

MBB-J7B-CH75V +5 vdc Ref.S SignalR Return

Circuit B Suction Pressure Transducer SPTB Pressure Transducer Suction Pressure, SP.B

MBB-J7D-CH95V +5 vdc Ref.S SignalR Return

Unit Status Remote Contact-Off-Enable Switch On/Off Remote Switch, ONOF MBB-J4-CH11Alarm Relay ALM R Relay Alarm Relay Output, ALRM MBB-J3-CH24Alert Relay ALT R Relay Alert Relay Output, ALRT MBB-J3-CH25

Cooler Pump Relay 1 PMP1 Contactor Cooler Pump 1, CPUMP_1 MBB-J2A-CH19Cooler Pump Relay 2 PMP2 Contactor Cooler Pump 2, CPUMP_2 MBB-J2A-CH20

Condenser Pump Relay CPMP Contactor Condenser Pump, COND_PMP MBB-J2C-CH22Pump #1 InterlockPump #2 Interlock

PMP_1PMP_2 Switch Cooler Pump Run Status, PUMP MBB-J5C-CH18

I/O Input or OutputLWT Leaving Water Temperature

11

Table 4 DIP Switch 1 (S1) Inputs

The CPM board DIP switch S2 setting determines the musttrip amps (MTA) setting. See Appendix D for DIP switch set-tings. The MTA setting which is calculated using the settingsS2 must match the MTA setting in the software or an MTAalarm will be generated.

See below for CPM board DIP switch S3 address informa-tion. See Table 5 for CPM inputs and outputs.

*30XW325-400 units only.

DIP SWITCH POSITION FUNCTION SETTING MEANING

1Starter Configuration OFF Across-the-line Start

ON Wye-Delta Start

2, 3

Current Transformer (CT) Position OFF (2), OFF (3) CT is located in the Delta of the motorON (2), OFF (3) CT is located in the main lineOFF (2), ON (3) Reserved for future useON (2), ON (3) Invalid; will cause MTA configuration alarm

4, 5, 6

Current Transformer (CT) Selection OFF (4), OFF (5), OFF (6) 100A/1V CT1ON (4), OFF (5), OFF (6) 100A/0.503V CT2OFF (4), ON (5), OFF (6) 100A/0.16V CT3ON (4), ON (5), OFF (6) Invalid; will cause MTA configuration alarmOFF (4), OFF (5), ON (6) Invalid; will cause MTA configuration alarmON (4), OFF (5), ON (6) Invalid; will cause MTA configuration alarmOFF (4), ON (5), ON (6) Invalid; will cause MTA configuration alarmON (4), ON (5), ON (6) Invalid; will cause MTA configuration alarm

7Contactor Failure Action OFF All units should be off

ON Used when Shunt Trip is available in the unit8 Not Used

CPM-A DIP Switch 3 1 2 3 4Address: OFF OFF OFF OFF

CPM-B DIP Switch 3* 1 2 3 4Address: OFF OFF ON OFF

1 2 3 4 5 6 7 8

0N 40K

1 2 3 4 5 6 7 8

0N 40K

1 2 3 4

0N

102

151

102

102

101

101

101

101

100 K

620

561

2x151 151 151 151 151 151

151

151

151

561

561

2

2x

2

CH

05

CH

06

C

C

CH

10

CH

11

CH

12

CH

13

CH

14

J2

J11

11

12

J9

J10A

J10B

24 VDC/OLL

HPS1LOADERSOLS MOTOR COOLING

OIL

PRESS

CH01

CH02

CH03

CH04

SMT

MOT

TMP

DG

TMP

R R

R

R

S

5

S5

AUX

102

102

100 K

CH08

CH07

01 02 J3J5J12 J1

151

151

R20

102

G +3 2 1

G +3 2 1

100K

101

PRESS

ECO

SI0 STATUS

CT1CT2

CT3J8

151 151 151 151 151

561

151

151

151

151

151

151

J4CH 09

(LEN)

MTA

DIPSWITCH 3

(S3)

S1

S2

S3

DIPSWITCH 2

(S2)

DIPSWITCH 1

(S1)

LOCATION OFSERIAL NUMBER

STATUSSIO(LEN)

Fig. 9 Compressor Protection Modulea30-4215

12

Table 5 Compressor Protection Module Inputs and Outputs*

*X denotes the circuit, A or B.See Appendix D for MTA settings.

DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINTPin Notation

Power (24 vac supply) CPM-X-J1

11 24 vac12 Ground

Local Equipment Network

CPM-X-JP121 RS485 Port (D+)2 RS485 Port (Gnd)3 RS485 Port (D-)

CPM-X-J121 RS485 Port (D+)2 RS485 Port (Gnd)3 RS485 Port (D-)

Circuit X High Pressure Switch HPS-X Switch Not availableCPM-X-J7-CH05

1

2

Oil Level Switch Oil LS X Switch Circuit X Oil Solenoid, OLS.XCPM-X-J6-CH06

1

2

Must Trip Amps MTA (S2) 8-Pin DIP Switch Must Trip Amps, MTA.X

Configuration Switch S1 8-Pin DIP Switch S1 Config Switch, C.SW.X

Compressor X Motor Temperature MTR-X NTC Thermistor Motor Temperature, CTP.XCPM-X-J9-CH01

1

2

Compressor X Discharge Gas Temperature DGT X NTC Thermistor Discharge Gas Temp, DGT.XCPM-X-J9-CH02

1

2

Oil Pressure Transducer OPT X Pressure Transducer Oil Pressure, OP.X

CPM-X-J10B-CH045V + 5 vdc refS SignalR Return

Economizer Pressure Transducer(sizes 175,200,350,400 only) EPT X Pressure Transducer Economizer Pressure, ECP.X

CPM-X-J10A5V + 5 vdc refS SignalR Return

Compressor Current X Phase A Current Sensor CUR.ACPM-X-J8-CH01

1

2

Compressor Current X Phase B Current Sensor CUR.BCPM-X-J8-CH02

1

2

Compressor Current X Phase C Current Sensor CUR.CCPM-X-J8-CH3

1

2

Compressor X 1M Contactor C X 1M Contactor Compressor Output, CP.XCPM-X-J1-CH07

12

Compressor X 2M Contactor C X 2M Contactor Not availableCPM-X-J2-CH8

12

Compressor X S Contactor C X S Contactor Not availableCPM-X-J2-CH9

12

Oil Solenoid X Oil solenoid-X Solenoid Oil Solenoid Output, OLS.XCPM-X-J2-CH12

12

Load Solenoid X Loading Solenoid-X Solenoid Slide Valve 1 Output, SL1.X CPM-X-J2-CH131

Unload Solenoid X Unloading Solenoid-X Solenoid Slide Valve 2 Output, SL2.XCPM-X-J2-CH14

12

13

Electronic Expansion Valve (EXV) Board The 30XW150-325, 375 units have one EXV board. The30XW350,400 units have one EXV board per circuit. SeeFig. 10. The board is responsible for monitoring the suction gastemperature and economizer gas temperature thermistors. Theboard also signals the main EXV and economizer EXV(ECEXV) motors to open or close. The electronic expansionvalve board responds to commands from the MBB and sendsthe MBB the results of the channels it monitors via the LEN(Local Equipment Network). See below for DIP switch infor-mation. See Tables 6 and 7 for EXV inputs and outputs.

EXV BOARD 1 (150-400)

DIP SWITCH1 2 3 4 5 6 7 8

Address: ON ON ON ON ON ON OFF ON

EXV BOARD 2 (350,400)

DIP SWITCH1 2 3 4 5 6 7 8

Address: OFF ON ON ON ON ON OFF ON

12

34

56

78

ON

100 100

257-01

71210

0K

100K

100

12

34

5

3 2 1- G +

J3

12

34

5J2

A EX

VAJ2

B

EXV

B

24VAC

STATUS

MOV1

LOCATION OFSERIAL NUMBER

43

21

THA

THB

D4D6

J1

C15C16D5

U5

Q2 Q1

L4

U4

12/11

C17+

Q45

Q42Q37G2

Q35

Q25Q27Q30

Q20 Q22

Q17 Q15

Q12Q10

C10

Q7S1

C11

U2D2

L1U1C37C39

SB

D15

U6

C25

C49

Q4Q5

L2 R2

R3 L3 D1

R9 TE

MP

D29 D9 D8

SI0(LEN)

COMM J4

DIP SWITCH

Fig. 10 EXV Board

a30-4216

14

Table 6 EXV1 Board Inputs and Outputs (30XW150-325, 375)

Table 7 EXV1,2 Board Inputs and Outputs* (30XW350, 400)

*X denotes the circuit: 1 = Circuit A; 2 = Circuit B.

DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINTPin Notation

Power (24 vac supply) EXVA-J1

11 24 vac12 Ground

Local Equipment Network

EXVA-J41 RS485 Port (D+)2 RS485 Port (Gnd)3 RS485 Port (D)

Circuit A Suction Gas Thermistor SGTA 5k Thermistor Compressor Suction Temp, SGT.AEXVA-J3

THA

Circuit B Suction Gas Thermistor SGTB 5k Thermistor Compressor Suction Temp, SGT.BEXVA-J3

THB

Circuit A EXV EXV-A Stepper Motor EXV Position, EXV.A

EXVA-J2A1234

Circuit B EXV(size 325 only) EXV-B Stepper Motor EXV Position, EXV.B

EXVA-J2B1234

DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINTPin Notation

Power (24 vac supply) EXVX-J1

11 24 vac12 Ground

Local Equipment Network EXVX-J4

1 RS485 Port (D+)2 RS485 Port (Gnd)3 RS485 Port (D)

Circuit X Suction Gas Thermistor SGT X 5k Thermistor Compressor Suction Temp, SGT.XEXVX-J3

THA

Circuit X Economizer Gas Thermistor ECT X 5k Thermistor Economizer Gas Temp, ECT.XEXVX-J3

THB

Circuit X EXV EXV-X Stepper Motor EXV Position, EXV.X

EXVX-J2A1234

Circuit X Economizer EXV ECEXV-X Stepper Motor Cir X Economizer EXV Pos, ECO.X

EXVX-J2A1234

15

Minimum Load Valve (MLV) / CondenserBoard One auxiliary board is optionally installed in eachunit. See Fig. 11. The auxiliary board contains an analog outputfor head pressure control and discrete outputs for minimumload control. The auxiliary board responds to commands fromthe MBB and sends the MBB the results of the channels itmonitors via the Local Equipment Network (LEN). See below

for auxiliary board A, B and C DIP switch addresses. See Table8 for inputs and outputs.

Table 8 Auxiliary Board Outputs

AUX BOARD DIP SWITCH 1 2 3 4 5 6 7 8

Address: OFF ON OFF OFF ON OFF ON OFF

DESCRIPTION INPUT/OUTPUT I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINTPin Notation

Power (24 vac supply) AUX-J1

11 24 vac12 Ground

Local Equipment Network

AUX-J9+ RS485 Port (D+)G RS485 Port (Gnd)- RS485 Port (D-)+ RS485 Port (D+)G RS485 Port (Gnd)- RS485 Port (D-)

Condenser Head Pressure Control Speed Signal HD_A 0-10 VDC Head Press Actuator Pos, SPD.A

AUX-CH9+ Signal- Ground

Minimum Load Valve A MLV-A Solenoid Minimum Load Valve Circuit A, MLV.A AUX-J2-CH3

Minimum Load Valve B MLV-B Solenoid Minimum Load Valve Circuit B, MLV.B AUX-J2-CH4

1 2 3 4 5 6 7 8

ON

100K

100K

100K

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8

STATUS SIO (LEN)

LOCATION OFSERIAL NUMBER

24 VAC

CH13

CH14

J9

J1

CH9 CH10 CH11 CH12

JP2

C61 CH13D12 JP1

L3

L5

U21

L2D6

D5Q5

Y1

D7

D8

S1

D3U1Q1

U5 U6 U7

U8

U9 Q10

Q11

U10

J4

J3J2

U4U2

Q12

Q60

3 2

1

G

+

3 2

1

G

+

DIP SWITCH

Fig. 11 Auxiliary Board with Optional Minimum Load Control or Head Pressure Control

a30-4046

16

Enable-Off-Remote Contact Switch (SW1) This switch is installed in all units and provides the owner andservice person with a local means of enabling or disabling themachine. It is a 3-position switch and it is used to control thechiller. When switched to the Enable position, the chiller willbe under its own control. When switched to the Off position,the chiller will shut down. When switched to the Remote Con-tact position, a field-installed dry contact can be used to startthe chiller. The contacts must be capable of handling a 24-vac,50-mA load. In the Enable and Remote Contact (dry contactsclosed) positions, the chiller is allowed to operate and respondto the scheduling configuration, CCN configuration, and setpoint data.

For units with a Touch Pilot display, the position of theEnable/Off/Remote contact switch is ignored except when theRemote Mode operating type is selected. Refer to the MachineControl Methods section on page 20 for more details.

Emergency On/Off Switch (SW2) This switch isinstalled in all units. The Emergency On/Off switch shouldonly be used when it is required to shut the chiller off immedi-ately. Power to all modules is interrupted when this switch isoff and all outputs from these modules will be turned off.

Energy Management Module (EMM) The EMMis available as a factory-installed option or as a field-installedaccessory. See Fig. 12. The EMM receives 4 to 20 mA inputsfor the temperature reset, cooling set point and demand limitfunctions. The EMM also receives the switch inputs for thefield-installed second stage 2-step demand limit and ice donefunctions. The EMM communicates the status of all inputswith the MBB, and the MBB adjusts the control point, capacitylimit, and other functions according to the inputs received. SeeTable 9.

CAUTIONCare should be taken when interfacing with other manufac-turers control systems due to possible power supply differ-ences, full wave bridge versus half wave rectification,which could lead to equipment damage. The two differentpower supplies cannot be mixed. ComfortLink controls usehalf wave rectification. A signal isolation device should beutilized if incorporating a full wave bridge rectifier signalgenerating device is used.

Fig. 12 Energy Management Module

221221

221

221

100K

100K

100K

100K

100K

CH17

CH17

CH16

CH CH18

CH19

CH20

CH22

CH21

CH23

24 VAC12 11 C

H11

bCH 12

CH 13CH 14

CH 15CH

1CH

2CH

3CH

4CH

5CH

6CH

7

SIO LEN

+ G -

+ G -

SIO LEN

J8

J7B

J7A

J6

J5

J4J3J2BJ2AJ1

J9AJ9B

a30-4911

17

Table 9 Energy Management Module (EMM) Inputs and Outputs

* A field-supplied 1/2 watt 250 ohm resistor is required across terminals TB6-1,2 (CH6) and/or TB6-3, 4 (CH5).Local Equipment Network Information is trans-mitted between modules via a 3-wire communication bus orLEN (Local Equipment Network). External connection to theLEN bus is made at TB3.

Board Addresses All boards (except the Main BaseBoard and Energy Management Module Board) have8-position DIP switches.

Touch Pilot Display The Touch Pilot displayport connections are shown in Table 10. Wiring is shown inFig. 13.

Control Module CommunicationRED LED Proper operation of the control boards can bevisually checked by looking at the red status LEDs (light-emitting diodes). When operating correctly, the red statusLEDs will blink in unison at a rate of once every 2 seconds. Ifthe red LEDs are not blinking in unison, verify that correctpower is being supplied to all modules. Be sure that the MainBase Board (MBB) is supplied with the current software. Ifnecessary, reload current software. If the problem still persists,replace the MBB. A red LED that is lit continuously or blink-ing at a rate of once per second or faster indicates that the boardshould be replaced.GREEN LED All boards have a green LEN LED whichshould be blinking whenever power is on. If the LEDs are notblinking as described check LEN connections for potential

communication errors at the board connectors. See input/out-put Tables 3-10 for LEN connector designations. A 3-wire busaccomplishes communication between modules. These 3 wiresrun in parallel from module to module. The J9A connector onthe MBB provides communication directly to the Navigatordisplay module.YELLOW LED The MBB has one yellow LED. TheCarrier Comfort Network (CCN) LED will blink during timesof network communication.

Table 10 Touch Pilot Display Port Connections

INPUT/OUTPUT DESCRIPTION I/O TYPE DISPLAY MODULE POINT NAME CONNECTION POINT4-20 mA Demand Limit 4-20 mA Demand Limit 4-20 mA* Limit 4-20 mA Signal, DMD EMM-J7B-CH64-20 mA Temperature Reset/Cooling Setpoint

4-20 mA Temperature Reset/ Cooling Set point

4-20 mA* Reset/Setpnt 4-20 mA Signal, RSET EMM-J7A-CH5

Demand Limit SW2 Demand Limit Step 2 Switch Input Switch Limit Setpoint 2, DLS2 EMM-J4-CH9Ice Done Ice Done Switch Switch Input Ice Done Storage Switch, ICE.D EMM-J4-CH11AOccupancy Override Occupied Schedule Override Switch Input Occupied Override Switch, OCCS EMM-J4-CH8Remote Lockout Switch Chiller Lockout Switch Input Remote Interlock Switch, RLOC EMM-J4-CH10SPT Space Temperature Thermistor 10k Thermistor Optional Space Temp, SPT EMM-J6-CH2% Total Capacity Percent Total Capacity Output 0-10 vdc Chiller Capacity Signal, CATO EMM-J8-CH7RUN R Run Relay Relay Running Status, RUN EMM-J3-CH25SHD R Shutdown Relay Relay Shutdown Indicator State, SHUT EMM-J3-CH24CA_S Run Status for Circuit A Relay Compressor A Run Status, Q_RUN_A EMM-J2A-CH17CB_S Run Status for Circuit B Relay Compressor B Run Status, Q_RUN_B EMM-J2A-CH18

CONNECTOR PIN FUNCTION

J1 (Power)1 24VAC +2 24VAC -3 Earth Ground

J2 (COM1)1 RS485 Port (D+)2 RS485 Port (GND)3 RS485 Port (D-)

J3 (RJ11)

1 24VAC (+)2 RS485 Port (D+)3 RS485 Port (GND)4 Unused (no connect)5 RS485 Port (D-)6 24VAC(-)

Fig. 13 Touch Pilot Display Wiring

18

Carrier Comfort Network (CCN) Interface All 30XW units can be connected to a CCN system, if desired.The communication bus wiring is a shielded, 3-conductor cablewith drain wire and is field supplied and installed. The systemelements are connected to the communication bus in a daisychain arrangement. The positive pin of each system elementcommunication connector must be wired to the positive pins ofthe system elements on either side of it. The negative and sig-nal ground pins of each system element must also be wired inthe same manner. Wiring connections for CCN should be madeat TB3. Consult the CCN Contractors Manual for further in-formation. See Fig. 14.NOTE: Conductors and drain wire must be 20 AWG (Ameri-can Wire Gage) minimum stranded, tinned copper. Individualconductors must be insulated with PVC, PVC/nylon, vinyl,Teflon*, or polyethylene. An aluminum/polyester 100% foilshield and an outer jacket of PVC, PVC/nylon, chrome vinyl,or Teflon with a minimum operating temperature range of20 C to 60 C is required. See Table 11 for recommended wiremanufacturers and part numbers.

Table 11 CCN Communication Bus Wiring

It is important when connecting to a CCN communicationbus that a color-coding scheme be used for the entire networkto simplify the installation. It is recommended that red be usedfor the signal positive, black for the signal negative, and whitefor the signal ground. Use a similar scheme for cables contain-ing different colored wires.

At each system element, the shields of its communicationbus cables must be tied together. If the communication bus isentirely within one building, the resulting continuous shieldmust be connected to a ground at one point only. If the commu-nication bus cable exits from one building and enters another,the shields must be connected to grounds at the lightningsuppressor in each building where the cable enters or exits thebuilding (one point per building only).

To connect the unit to the network:1. Turn off power to the control box.2. Cut the CCN wire and strip the ends of the red (+), white

(ground), and black () conductors. (Substitute appropri-ate colors for different colored cables.)

3. Connect the red wire to (+) terminal on TB3 of the plug,the white wire to COM terminal, and the black wire to the() terminal.

4. The RJ14 CCN connector on TB3 can also be used, but isonly intended for temporary connection (for example, alaptop computer running Service Tool).

Remote Alarm and Alert Relays The 30XWchiller can be equipped with a remote alert and remote alarmannunciator contacts. Both relays connected to these contactsmust be rated for a maximum power draw of 10 va sealed,25 va inrush at 24 volts. The alarm relay, indicating that thecomplete unit has been shut down, can be connected to TB5-12and TB5-13. Refer to unit wiring diagrams. For an alert relay,indicating that at least 1 circuit is off due to the alert, a field-supplied and installed relay must be connected between MBB-J3-CH25-3 and TB5-13. The action of the alarm and alert re-lays can be reversed from normally open to normally closed byusing the Reverse Alarms Relay configuration (ReverseAlarms Relay, RV.AL).

CONFIGURATIONTouch Pilot Operation ConfigurationTables The Touch Pilot display operation is controlledby configuration information entered in the following configu-ration tables. These tables are accessible by using Network Ser-vice Tool or ComfortVIEW software. The tables are theCtrlID (Controller Identification) configuration table and theUSERCONF (User Configuration) table. See Tables 12 and 13.NOTE: Always perform an Upload to obtain the latest config-uration before making configuration table changes.

MANUFACTURER PART NUMBERRegular Wiring Plenum WiringAlpha 1895 American A21451 A48301Belden 8205 884421Columbia D6451 Manhattan M13402 M64430Quabik 6130

IMPORTANT: A shorted CCN bus cable will preventsome routines from running and may prevent the unitfrom starting. If abnormal conditions occur, discon-nect the CCN bus. If conditions return to normal,check the CCN connector and cable. Run new cable ifnecessary. A short in one section of the bus can causeproblems with all system elements on the bus.

Fig. 14 ComfortLink CCN Communication Wiring

(+) (COM) (-) SHIELD

CCN

RED

WH

T

BLK

CCNLEN

(+) (COM) (-) SHIELD

CCN

RED

WH

T

BLK

CCNLEN

TO NEXTDEVICE

(+) (COM) (-) SHIELD

CCN

RED

WH

T

BLK

CCNLEN

SHIELD

LEGENDCCN Carrier Comfort NetworkLEN Local Equipment Network

a30-4706

* Registered trademark of DuPont.

19

Table 12 Touch Pilot Controller Identification Configuration Table

Table 13 Touch Pilot User Configuration (USERCONF) Table

BACKLIGHT ALWAYS ON? This configuration is usedto keep the backlight on continuously or to turn it off after 60seconds with no activity.Allowable Entries: No/Yes (No=0 or Yes=1)Default Value: No

FULL ACCESS PASSWORD This configuration is usedto specify the full access password. Refer to Table 1, SetupMenu, for additional information on passwords.Allowable Entries: 0 through 9999Default Value: 3333

CONTROLLER ID DATA BLOCK NO. VALUE AND RANGE QUALIFIERSDevice Name 1 CHILLDSP8 character Name field

DefaultOptional

Local address 2 115 DefaultBus number 2 0 Default

Device (driver) type 2 0 = Non-bridge3 = Broadcast AcknowledgerDefaultOptional

Primary baud rate 3 38400 DefaultSecondary baud rate 3 38400 FixedDevice description 4 Global Chiller Display24 character text field

DefaultOptional

Device location 4 (Blank)24 character text fieldDefaultOptional

Software part number 4 CESR-131363-01 FixedModel number 4 (Blank) FixedSerial number 4 (Blank) FixedReference number 4 Version 1.0 Fixed

Broadcast address processing list (primary) 5 241-251, 254, 255 enabled241-255 enabled/disabledDefaultsOptional

Broadcast address processing list (secondary) 5 none Not applicable

DESCRIPTION LIMITS UNITS NAME DEFAULTBacklight always on? NoYes BACKLITE No

Full access password 09999 PSWDFULL 3333

Limited access password 09999 PSWDLMTD 2222

Active language 01 ACTLANG 0

Time format 01 TIMEFMT 0

Date format 02 DATEFMT 0

Units base USMetric UNITBASE US

Contrast control ManualAuto CONTRAST Auto

Network mode DisableEnable NETWORK DisableNetwork settings

Alarm acknowledger NoYes ALARMACK No

Broadcast acknowledger NoYes BROADACK NoEquipment CCN address

Bus number 0239 EQUIPBUS 0

Element number 1239 EQUIPELE 1Control variables

Equipment status (Not Used) Namechar 8 EQSTATUS NOT USED

Equipment start/stop (Not Used) Namechar 8 STARSTOP NOT USED

Alarm status (Not Used) Namechar 8 ALSTATUS NOT USED

Alarm reset (Not Used) Namechar 8 ALRESET NOT USED

20

LIMITED ACCESS PASSWORD This configuration isused to specify the limited access password.Allowable Entries: 0 through 9999Default Value: 2222ACTIVE LANGUAGE This configuration is used to spec-ify the displays active language. All translatable text will bedisplayed in this language.Allowable Entries: 0 (English), 1 (alternate, installed by user)Default Value: 0TIME FORMAT This configuration is used to specify theformat for display of time.Allowable Entries: 0 = H:MM AM/PM without leading zero

1 = HH:MM with leading zero whennecessary

Default Value: 0DATE FORMAT This configuration is used to specify theformat for display of date.Allowable Entries: 0 = MM-DD-YYYY with leading zero

when necessary1 = DD-MM-YYYY with leading zero when necessary2 = YYYY-MM-DD

Default Value: 0UNITS BASE This configuration is used to specify the for-mat of the units of measure.Allowable Entries: U.S.

MetricDefault Value: U.S.CONTRAST CONTROL This configuration is used to en-able or disable the displays auto contrast adjustment feature.When enabled, the displays contrast will be automatically ad-justed as required, based on temperature.Allowable Entries: Manual

(Auto Contrast Adjustment Disabled)Auto(Auto Contrast Adjustment Enabled)

Default Value: AutoNETWORK MODE This configuration is used to set thedisplays operating mode. For additional information on oper-ating mode, refer to Display in the Table Setup Menu. This de-cision will be ignored and the mode will default to Equipmentwhen the display is connected to a device (the LEN Bus).NOTE: A power cycle is required for this decision to takeeffect.Allowable Entries: Disable = Equipment Mode

Enable = Network ModeDefault Value: DisableALARM ACKNOWLEDGER This configuration is usedto specify whether the Touch Pilot display will act as thealarm acknowledger for the CCN. There can be only one alarmacknowledger per CCN. Therefore, if another CCN devicesuch as ComfortVIEW software, the Autodial Gateway orTeLINK is already set as the alarm acknowledger for the CCNnetwork then this decision should be set to No.NOTE: The display must be in Network mode and connectedto the primary CCN bus and this decision set to Yes for alarmacknowledgement to be enabled.Allowable Entries: No

YesDefault Value: No

BROADCAST ACKNOWLEDGER This configurationis used to indicate whether the Touch Pilot display will actas the broadcast acknowledger for its CCN bus. There can beonly one broadcast acknowledger per CCN bus.NOTE: The display must be in Network mode and this deci-sion set to Yes for broadcast acknowledgement to be enabled.Allowable Entries: No

YesDefault Value: NoEQUIPMENT CCN ADDRESS When in equipmentmode (USERCONF Tables Network Mode decision is set toDisable), the Bus Number and Element Number decisions areused to specify the CCN address of the piece of equipment tocommunicate with. An Attach or power cycle must beperformed for changes to take effect. These decisions will beignored when the display is connected to the LEN bus or inNetwork mode. In Network mode, specify the bus and elementnumber of the equipment communicate with using the dis-plays Attach function.NOTE: In Network mode, these configurations will be over-written with the default device address if it is changed throughthe Attach process.BUS NUMBER This configuration is used to specify theEquipment Controller bus number.Allowable Entries: 0 through 239Default Value: 0ELEMENT NUMBER This configuration is used to speci-fy the Equipment Controller element number.Allowable Entries: 1 through 239Default Value: 1

Machine Control Methods Three variables con-trol how the machine operates. These variables control theOn-Off function, set point operation, and Heat-Cool operation.

Machine On/Off Control Machine On/Off controldepends on which interface display is used. The control is dif-ferent for Touch Pilot or Navigator displays. Select thecorrect configuration procedure below based on which inter-face is being used.TOUCH PILOT MACHINE CONTROL Machine On/Off control is determined locally by pushing the Start/Stop but-ton on the Touch Pilot display. Pressing this button willcause the Equipment Start screen to be displayed. See Fig. 15.

Fig. 15 Equipment Start Screen

21

Table 14 summarizes the unit control type and stop or gostatus with regard to the following parameters: Operating type: this is selected by using the start/stop button

on the front of the user interface. Remote start/stop contacts: these contacts are used when the

unit is in remote operating type (Remote mode). CHIL_S_S: this network command variable relates to the

chiller start/stop when the unit is in CCN control (CCNmode). When this variable forced to Disable, then the unit isstopped. When this variable is forced to Enable, then theunit runs in accordance with schedule 1.

Start/Stop schedule: occupied or unoccupied status of theunit as determined by the chiller start/stop program (Sched-ule 1).

Master control type: This parameter is used when the unit isthe master unit in a two chiller lead/lag arrangement. Themaster control type determines whether the unit is to becontrolled locally, remotely or through CCN (this parameteris a Service configuration).

CCN emergency shutdown: if this CCN command is acti-vated, it shuts the unit down whatever the active operatingtype.

General alarm: the unit is totally stopped due to failure.Local Mode To start the machine in local mode, press theStart/Stop button on the Touch Pilot display. The EquipmentStart screen will be displayed. Select Local On. The controlwill ignore the position of Enable/Off/Remote Contact switchand all CCN network force commands, except an EmergencyStop Command. The Run Status variable, indicating the cur-rent status of the machine, will change to RUNNING, DELAYor READY. The Chiller Occupied? variable will change toYES. The Control Type variable indicates the type of control.For this configuration, Control Type will be Local. The Oper-ating Type variable will change to L-On (Local On).Local Schedule To start the machine with a local schedule,press the Start/Stop button on the Touch Pilot display. TheEquipment Start screen will be displayed. Select Local Sched-ule. The unit will start and stop according to the schedule de-fined in the Time Schedule menu. Two Internal Time Sched-ules are available and must be field programmed. TimeSchedule 1 is used for single set point On-Off control. Time

Schedule 2 is used for Dual Set Point/Occupied-Unoccu-pied set point control. The control will ignore the position ofEnable/Off/Remote Contact switch and all CCN network forcecommands, except the Emergency Stop Command.

The Run Status variable will indicate the current status ofthe machine OFF, RUNNING, DELAY, or READY. TheChiller Occupied? variable will indicate the occupied state ofthe machine according to Time Schedule 1 and will be eitherYES (occupied) or NO (unoccupied). The Control Type vari-able will indicate the type of control. For this configuration,Control Type will be Local. The Operating Type variablewill change to L-Sched (Local Schedule).

The schedules consist of 8 user-configurable occupied timeperiods. The control supports time schedules for local control,remote control, and ice building. These time periods can beflagged to be in effect or not in effect on each day of the week.The day begins at 00.00 and ends at 24.00. The machine will bein unoccupied mode unless a scheduled time period is in effect.If an occupied period extends past midnight, the occupiedperiod will automatically end at 24:00 hours (midnight) and thenew occupied period must be programmed to begin at 00:00hours.

In the following example, the occupied period starts at 6:00AM, Monday through Friday and 10:00 AM on Saturday andSunday. The occupied time ends at 6:30 PM on Mondaythrough Friday and 2:00 PM on Saturday and Sunday. SeeFig. 16.NOTE: This schedule was designed to illustrate the program-ming of the schedule function and is not intended as arecommended schedule for chiller operation.

If the chiller is to be controlled to a single set point, useSchedule 1 (OCCPC01S). This will start and stop the machine.During the unoccupied times, the chiller will be off. If the chill-er is to be controlled to 2 set points, occupied and unoccupied,use Schedule 2 (OCCPC02S). This will cause the chiller tocontrol to an occupied set point and an unoccupied set point.The machine will be able to provide cooling at any time.

To configure the local schedule on the Touch Pilotdisplay see Table 15.

Table 14 Touch Pilot Start/Stop Control

ACTIVE OPERATING TYPEPARAMETER STATUS

CONTROLTYPE

UNITSTATUSCHIL_S_SVariable

RemoteStart/StopContact

Master UnitControl Type

Start/StopSchedule

Mode

CCNEmergencyShutdown

GeneralAlarm

Local On Disabled No Local OnLocal Off Local Off

Local Schedule Unoccupied Local OffOccupied Disabled No Local On

Remote Mode Off Remote Off Unoccupied Remote Off

On Cool Occupied Disabled No Remote On

CCN ModeOff CCN Off CCN OffOn Occupied Disabled No CCN On

Master Mode

Local Unoccupied Local OffOccupied Disabled No Local OnRemote Unoccupied Remote Off

CCN Unoccupied CCN OffOff Remote Remote Off

On Cool Remote Occupied Disabled No Remote OnOff CCN CCN OffOn CCN Occupied Disabled No CCN On

Active Off Yes Off

22

Table 15 Configuring the Schedule with Touch Pilot Display

Holiday Schedule For the Touch Pilot display, the con-trol allows up to 16 holiday periods. All holidays are enteredwith numerical values. To configure, first change the month(Holiday Start Month), then the day (Holiday Start Day),then the duration (Holiday Duration) of the holiday period indays. If a holiday is included in one of the Occupied Time Peri-ods of the schedule, the machine will follow that operatingcondition for the holiday. In the following examples, the holi-days July 4 and December 25-26 are programmed for Holiday1 and Holiday 2, respectively. To configure these holidays withthe Touch Pilot display, see Table 16. To configure Holidayswith the Navigator display, check the H (holiday) scheduleon the Schedule screen and program in the desired occupiedtimes.Table 16 Programming Holiday Schedules with

Touch Pilot Display

Timed Override With the Touch Pilot display only, eachtime schedule can be overridden to keep the chiller in anOccupied mode (Timed Override Hours) for 1, 2, 3 or 4 hours

on a one-time basis. To configure this option for the TouchPilot display:

If configured for a timed override, the override can be can-celled by changing the Timed Override Hours to 0.CCN Global Time Schedule A CCN global schedule canbe used if desired. The schedule number can be set anywherefrom 65 to 99 for operation under a CCN global schedule. The30XW chillers can be configured to follow a CCN GlobalTime Schedule broadcast by another system element. TheComfortVIEW Network Managers Configure and Modifycommands or the Service Tools Modify/Names function mustbe used to change the number of the Occupancy EquipmentPart Table Name (OCC1P01E) to the Global Schedule Num-ber. The Schedule Number can be set from 65 to 99(OCC1P65E to OCC1P99E).

The Occupancy Supervisory Part table name (OCC1P01S)number must be changed to configure the unit to broadcast aGlobal Time Schedule. The Schedule Number can be set from65 to 99 (OCC1P65S to OCC1P99S). When OCC1PxxS is setto a value greater than 64, an occupancy flag is broadcast overthe CCN every time it transitions from occupied to unoccupiedor vice-versa. By configuring their appropriate Time Scheduledecisions to the same number, other devices on the network canfollow this same schedule. The Enable/Off/Remote Contactmust be in the Enable position or the Remote Contact positionwith the contacts closed for the unit to operate. The Unit RunStatus (STAT) will indicate the current status of the machine(OFF, RUNNING, STOPPING or DELAY), depending on theschedule. The unit Occupied status (OCC) will indicate thecurrent occupied schedule according to the schedule, either NOor YES. The Status Unit Control Type (CTRL) will be LOCALOFF when the switch is Off. The Status Unit Control Type willbe CCN when the Enable/Off/Remote Contact switch input isOn.

Refer to Appendix F for more detailed instructions regard-ing global schedules and the i-Vu device.CCN Mode To allow machine control by CCN commands,press the Start/Stop button on the Touch Pilot display. TheEquipment Start screen will be displayed. Select CCN Mode.The unit will be controlled by a CCN command to the CCNChiller Start/Stop variable. An external CCN device, such asChillervisor, controls the On/Off state of the machine. Whencontrolled by a Chillervisor, it is recommended that the AutoStart When SM Lost configuration be set to Yes. In the eventof a loss of communication with the network, the machine willstart and be controlled locally.

Careful evaluation of chilled water plant control should bereviewed. In the event local control is established, be sure thatall pumps, valves, and other devices are capable of operatingproperly. The control will ignore the position of Enable/Off/Remote Contact switch. The Run Status variable will indicatethe current status of the machine OFF, RUNNING, DELAY,or READY. The Control Type variable will change to CCN.The Operating Type variable will change to CCN.

For dual chiller control applications, the slave chiller mustbe enabled using the CCN Mode button.Remote Mode To allow machine to start and stop via aremote contact closure, press the Start/Stop button on theTouch Pilot display. The Equipment Start screen will be dis-played. Select Remote Mode. The unit will be controlled by theEnable/Off/Remote Contact switch (SW1). Switching the En-able/Off/Remote Contact switch to the Enable or RemoteContact position (external contacts closed) will force the unitinto an occupied state. In this mode, all CCN network force

DISPLAY NAME PATH LINE NO. VALUEPeriod 1 DOW (MTWTFSSH)

Config\OCCDEFCS\OCC1P01S

or OCC1P02S

111111000

Occupied from 06:00Occupied to 18:30Period 2 DOW (MTWTFSSH)

200000110

Occupied from 10:00Occupied to 14:00Period 3 DOW (MTWTFSSH)

300000001

Occupied from 12:00Occupied to 14:00Period 4 DOW (MTWTFSSH)

400000000

Occupied from 00:00Occupied to 24:00Period 5 DOW (MTWTFSSH)

500000000

Occupied from 00:00Occupied to 24:00

DISPLAY NAME PATH LINE NO. VALUEHoliday Start Month

Config\HOLIDAY\HOLDY_011 7

Start Day 2 4Duration (days) 3 1Holiday Start Month

Config\HOLIDAY\HOLDY_021 12

Start Day 2 25Duration (days) 3 2

Fig. 16 Chiller Schedule Screen

DISPLAY NAME PATH LINENO. VALUETimed Override Hours

Config\OCCDEFCS\OCC1P01S or OCC1P02S 1

Range: 0 to 4Default: 0

23

commands, except the Emergency Stop Command will beignored. The Run Status variable will indicate the current sta-tus of the machine (OFF, RUNNING, DELAY, or READY),depending on the position of the Remote/Off/Enable Switchclosure. The Chiller Occupied? variable will change to YES.The Control Type variable will change to Remote. The Oper-ating Type variable will change to Remote.Master Mode To activate Dual Chiller Control, each ma-chine must be individually configured for Dual Chiller Control.To operate the machines in Dual Chiller Mode, one machinemust be designated as the master unit and one machine as theslave unit. On the master unit, press the Start/Stop button on theTouch Pilot display. The Equipment Start screen will be dis-played. Select Master Mode. Failure to start the Master unit inthis manner will cause both machines to operate in local mode.

The Master Unit Control can be done locally, remotely orthrough CCN commands per the master/slave configuration(Master Control Type). The control will ignore the position ofEnable/Off/Remote Contact switch if the Master ControlType is configured for Local Control or CCN Control. TheRun Status variable, Chiller Occupied? variable, and Con-trol Type variable will change based on the Master ControlType configured above and the Machine On/Off Control de-fined above. The Operating Type variable will change toMaster.To Turn Machine Off To turn the machine off, press theStart/Stop button on the Touch Pilot display. See Fig. 17.The machine will shut down. While the unit is in Local Off, itwill remain shut down and ignore all CCN commands as wellas the position of Enable/Off/Remote Contact switch. The RunStatus variable, indicating the current status of the machine,will change to OFF. The Chiller Occupied? variable willchange to NO. The Control Type variable will indicateLocal. The Operating Type variable will change to L-OFF(Local Off).

NAVIGATOR DISPLAY MACHINE CONTROL Ma-chine On/Off control with the Navigator display is deter-mined by the configuration of the Operating Type Control(OPER). Options to control the machine locally via a switch,from a local Time Schedule, or via a Carrier Comfort Net-work command are offered. See Table 17.

The schedules consist of 8 user-configurable occupied timeperiods. The control supports time schedules for local control,remote control, and ice building. These time periods can beflagged to be in effect or not in effect on each day of the week.The day begins at 00.00 and ends at 24.00. The machine is inunoccupied mode unless a scheduled time period is in effect. Ifan occupied period is to extend past midnight, the occupiedperiod must end at 24:00 hours (midnight) and a new occupiedperiod must be programmed to begin at 00:00 hours.

In the following example, a early morning pulldown timeperiod is scheduled for Monday morning from 12:00 AM to3:00 AM. The occupied period starts at 7:00 AM, Mondaythrough Saturday. The occupied time ends at 6:00 PM on Mon-day and Tuesday, 9:30 PM on Wednesday, 5:00 PM on Thurs-day and Friday, and 12:00 PM on Saturday.NOTE: This schedule was designed to illustrate the program-ming of the schedule function and is not intended as a recom-mended schedule for chiller operation.Switch Control In the Switch Control operating type, theEnable/Off/Remote Contact switch controls the machine local-ly. All models are factory configured with Operating TypeControl (OPER) set to SWITCH CTRL (Switch Control).With SWITCH CTRL, switching the Enable/Off/RemoteContact switch to the Enable or Remote Contact position (ex-ternal contacts closed) will put the chiller in an occupied state.The Unit Run Status (STAT) will indicate the current status ofthe machine and will change from OFF to RUNNING orDELAY. The unit Occupied Status (OCC) will change fromNO to YES. The Status Unit Control Type (CTRL) will changefrom LOCAL OFF when the switch is Off to LOCAL ONwhen in the Enable position or in the Remote Contact positionwith external contacts closed.

Table 17 Navigator Start/Stop Control

Fig. 17 Equipment Stop Screen

ITEM ITEM EXPANSION PATH VALUEOPER Operating Control Type

Operating Modes SLCT OPER

SWITCH CTRL

CONTROLMETHOD(OPER)

ACTIVEOPERATING

TYPEREMOTE/OFF/ENABLE

SWITCHREMOTE ON/OFF

SWITCH TIME SCHEDULE 1CCN CHILLERSTART/STOP(CHIL_S_S)

EMERGENCYSTOP

(EMSTOP)ALARM

REMOTELOCKOUTSWITCH

UNITSTATUS

All Local Off

Off OffRemote Open Off

Enable Off Yes Off Closed Off

SwitchControl Local On

Enable Disable OnRemote Closed Disable On

TimeSchedule

LocalSchedule

Enable Occupied Disable OnRemote Closed Occupied Disable On

Unoccupied Disable Off

CCNControl CCN

Remote Closed Enable Disable OnRemote Closed Disable Disable OffEnable Enable Disable OnEnable Disable Disable Off

24

Time Schedule With Time Schedule Operating Type con-trol, the machine operates under a local schedule programmedby the user as long as the Enable/Off/Remote Contact switch isin the Enable or Remote Contact position (external contactsclosed). To operate under this Operating Type Control (OPER)must be set to TIME SCHED (Time Schedule). Two InternalTime Schedules are available and must be field programmed.Time Schedule 1 (SCH1) is used for single set point On-Offcontrol. Time Schedule 2 (SCH2) is used for dual set pointOn-Off and Occupied-Unoccupied set point control. Thecontrol will use the operating schedules as defined under theTime Clock mode in the Navigator display module.

If the chiller is to be controlled to a single set point, useSchedule 1 (SCH1). This type of schedule will start and stopthe machine only. During the unoccupied times, the chiller willbe off. If the chiller is to be controlled to 2 set points, occupiedand unoccupied, use Schedule 2 (SCH2). This will cause thechiller to control to an occupied set point and an unoccupied setpoint. The machine will be able to provide cooling at any time.

To configure this option while using the Navigator dis-play, see Table 18.Holiday Schedule The unit control allows up to 16 holidayperiods. All holidays are entered with numerical values. Firstenter the month (MON.x), then the day (DAY.x), then theduration (DUR.x) of the holiday period in days. If a holiday inincluded in one of the Occupied Time Periods of the schedule,the machine will follow that operating condition for theholiday. In the following examples, the holidays July 4 andDecember 25-26 are programmed for Holiday 1 and Holiday 2respectively.

To configure this option for the Navigator display, seeTable 19.CCN Global Time Schedule A CCN global schedule canbe used if desired. The schedule number can be set anywherefrom 65 to 99 for operation under a CCN global schedule. The30XW chillers can be configured to follow a CCN GlobalTime Schedule broadcast by another system element. TheComfortVIEW Network Managers Configure and Modifycommands or the Service Tools Modify/Names function mustbe used to change the number of the Occupancy EquipmentPart Table Name (OCC1P01E) to the Glo