Carrier AQUASNAP AIR COOLED CHILLERS WITH COMFORTLINK CONTROLS 30RAP010-060 Operation And Service Manual

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Carrier AQUASNAP AIR COOLED CHILLERS WITH COMFORTLINK CONTROLS 30RAP010-060 Operation And Service Manual Manual pdf 3 page image

3GENERALThis publication contains Controls, Start-Up, Operation,Service, and Troubleshooting information for the 30RAPAquaSnap® air-cooled chillers. See Table 1. These chillers areequipped with ComfortLink™ controls and electronic expan-sion valves (EXVs).Table 1 — Unit SizesConventions Used in This Manual — The follow-ing conventions for discussing configuration points for thelocal display (scrolling marquee or Navigator™ accessory)will be used in this manual.Point names will be written with the mode name first, thenany sub-modes, then the point name, each separated by anarrow symbol (. Names will also be shown in boldand italics. As an example, the Lead/Lag Circuit Select Point,which is located in the Configuration mode, Option sub-mode,would be written as Configuration OPTNLLCS.This path name will show the user how to navigate throughthe local display to reach the desired configuration. The userwould scroll through the modes and sub-modes using theand keys. The arrow symbol in the path name repre-sents pressing to move into the next level of themenu structure.When a value is included as part of the path name, it will beshown at the end of the path name after an equals sign. If thevalue represents a configuration setting, an explanation willbe shown in parenthesis after the value. As an example,ConfigurationOPTNLLCS = 1 (Circuit A leads).Pressing the and keys simultaneouslywill scroll an expanded text description of the point name orvalue across the display. The expanded description is shown inthe local display tables but will not be shown with the pathnames in text.The CCN (Carrier Comfort Network®) point names are alsoreferenced in the local display tables for users configuring theunit with CCN software instead of the local display. The CCNtables are located in Appendix B of the manual.Basic Controls UsageSCROLLING MARQUEE DISPLAY — The scrolling mar-quee display is the standard interface display to the ComfortLinkControl System for 30RAP units. The display has up and downarrow keys, an key, and an key. Thesekeys are used to navigate through the different levels of thedisplay structure. Press the key until the highestoperating level is displayed to move through the top 11 modelevels indicated by LEDs on the left side of the display. SeeFig. 1 and Tables 2-14.Once within a mode or sub-mode, pressing theand keys simultaneously will put the scrollingmarquee display into expanded text mode where the full mean-ing of all sub-modes, items and their values can be displayedfor the current selection. Press the andkeys to return the scrolling marquee display to its default menuof rotating display items (those items in Run StatusVIEW).In addition, the password will be disabled, requiring that it beentered again before changes can be made to password protect-ed items. Press the key to exit out of the expandedtext mode.NOTE: When the Language Selection (ConfigurationDISPLANG), variable is changed, all appropriate displayexpansions will immediately change to the new language. Nopower-off or control reset is required when reconfiguringlanguages.When a specific item is located, the item name alternateswith the value. Press the key at a changeable itemand the value will be displayed. Press again and thevalue will begin to flash indicating that the value can bechanged. Use the up and down arrow keys to change the value,and confirm the value by pressing the key.Changing item values or testing outputs is accomplished inthe same manner. Locate and display the desired item. Pressso that the item value flashes. Use the arrow keys tochange 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 ‘PASS’ and ‘WORD’ will alternateon the display when required. The default password is 0111.Press and the 1111 password will be displayed. Pressagain and the first digit will begin to flash. Use thearrow keys to change the number and press to acceptthe digit. Continue with the remaining digits of the password.The password can only be changed through CCN operator in-terface software such as ComfortWORKS®, ComfortVIEW™and Service Tool.See Tables 2-14 and Appendix A for further details.WARNINGThis unit uses a microprocessor-based electronic controlsystem. Do not use jumpers or other tools to short out orbypass components or otherwise depart from recom-mended procedures. Any short-to-ground of the controlboard or accompanying wiring may destroy the board orelectrical component.UNIT NOMINAL CAPACITY (TONS)30RAP010 1030RAP015 1430RAP018 1630RAP020 1930RAP025 2430RAP030 2830RAP035 3430RAP040 3930RAP045 4330RAP050 4830RAP055 5330RAP060 56ENTERESCAPE ENTERENTER ESCAPEESCAPEENTERESCAPEENTER ESCAPEESCAPEENTERENTERENTERRun StatusService TestTemperaturePressuresSetpointsInputsOutputsConfigurationTime ClockOperating ModesAlarmsAlarm StatusENTERMODEESCAPEFig. 1 — Scrolling Marquee DisplayENTERENTERESCAPEENTERENTERENTER