Page 2 - CONTENTS; OPERATION SEQUENCE; GENERAL; Comfort; Table 1 — Unit Sizes; Conventions Used in This Manual —; Configuration; CAUTION; UNIT MODEL
2 CONTENTS Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . 2 Basic Controls Usage . . . . . . . . . . . . ...
Page 3 - Basic Control Usage; Enter Password; ENTER; MODE; ESCAPE; Fig. 1 — Scrolling Marquee Display
3 When a value is included as part of the path name, it will be shown at the end of the path name after an equals sign. If the value represents a configuration setting, an explanation will be shown in parenthesis after the value. As an example, Configuration OPT1 MLV.S = 1 (Minimum Load Valve Se...
Page 4 - Table 2 — Scrolling Marquee Display Menu Structure*; Fig. 2 — Accessory NavigatorTM Display Module
4 and press to enter the digit. Continue with the re- maining digits of the password. The password can only bechanged through CCN operator interface software such asComfortWORKS, ComfortVIEW and Service Tool.Adjusting the Contrast — The contrast of the display can beadjusted to suit ambient conditio...
Page 5 - Table 3 — Run Status Mode and Sub-Mode Directory
5 Table 3 — Run Status Mode and Sub-Mode Directory SUB-MODE KEYPAD ENTRY ITEM DISPLAY SUB-ITEM DISPLAY SUB-ITEM DISPLAY ITEM EXPANSION COMMENT VIEW EWT XXX.X F ENTERING FLUID TEMP LWT XXX.X F LEAVING FLUID TEMP SETP XXX.X F ACTIVE SETPOINT CTPT XXX.X F CONTROL POINT LOD.F XXX LOAD/UNLOAD FAC...
Page 11 - Table 11 — Time Clock Mode and Sub-Mode Directory; * Repeats for Occupancy Periods 2 through 8.
11 Table 11 — Time Clock Mode and Sub-Mode Directory * Repeats for Occupancy Periods 2 through 8. SUB-MODE KEYPAD ENTRY ITEM DISPLAY SUB-ITEM DISPLAY ITEM EXPANSION COMMENT TIME TIME OF DAY HH.MM XX.XX HOUR AND MINUTE Military (00:00 – 23:59) DATE MONTH,DATE,DAY AND YEAR MNTH XX MONTH OF YEAR 1-12 (...
Page 13 - Table 14 — Operating Modes
13 Table 14 — Operating Modes MODE NO. ITEM EXPANSION DESCRIPTION 01 CSM CONTROLLING CHILLER Chillervisor System Manager (CSM) is controlling the chiller. 03 MASTER/SLAVE CONTROL Dual Chiller control is enabled. 05 RAMP LOAD LIMITED Ramp load (pull-down) limiting in effect. In this mode, the rate at...
Page 16 - LOCATED OVER EMM
16 DISCONNECT OPTION CB1A/TB1A TRAN1 FB1 CA1 CA2 CA3 CSB-A1 CSB-A2 CSB-A3 CCB-1 CCB-2 CCB-3 CCH MBB EMM LVT UPC UPC LON OPTION TB3 OFF ON SW2 ENABLE SW1 REMOTE CONTROL CB1 CB2 CB3 LOCATED OVER EMM OFF L1 L2 L3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 EQUIP GND 2 4 6 Fig. 3 —...
Page 17 - MBB; UPC; EMM
17 COMP A2 TRAN1 H2 H3 H4 SECONDARY 24V RED 3 3 2 2 1 1 J2 BRN VIO 2 2 1 J1 1 3 3 FU3 SW2 C1 A1 B1 H1 X3 CONNECT FOR APPROPRIATE PRIMARY VOLTAGE SEE TABLE 1 2 4 6 CB1A 11 12 13 TO FUSED DISCONNECT PER NEC OPTIONAL DISCONNECT 3.2 AMPS CB3 1 2 3 T3 T1 T2 T3 T1 T2 3 2 1 GRN/YEL GRN/YEL XF RED 11 21 12 ...
Page 18 - Fig. 5 — Typical Control Wiring Schematic — 30MP015-045 Units
18 9 9 7 7 8 8 4 6 4 6 RLY 9 5 5 1 3 1 3 RLY 11 2 2 C2 C1 C2 C1 BLU 3 12 1 10 2 11 4 13 3 TB3 SW2 C2 A2 B2 9 18 10 19 8 17 11 12 13 14 20 21 22 23 6 15 7 16 5 14 15 16 17 18 24 25 26 27 3.2 AMPS CB2 C2 C1 RLY 10 J10A J10B RLY 5 RLY 6 RLY 7 RLY 8 RLY 1 RLY 2 RLY 3 RLY 4 12 11 10 9 8 7 6 5 4 3 2 1 26 ...
Page 19 - Sensors —
19 Table 15 — Thermistor Designations LEGEND Table 16 — Status Inputs Table 17 — Output Relays Table 18 — CCN Communication Bus Wiring Sensors — The electronic control uses 2 to 7 thermistors to sense temperatures for controlling chiller operation. See Table 15. These sensors are outlined below. The...
Page 20 - Fig. 6 — Main Base Board; Fig. 8 — Typical Space Temperature; Fig. 9 — CCN Communications Bus Wiring
20 CEPL130346-01 STATUS LEN J1 J2 J4 J3 J5 J6 J7 J8 J9 J10 CCN RED LED - STATUS GREEN LED -LEN (LOCAL EQUIPMENT NETWORK) YELLOW LED -CCN (CARRIER COMFORT NETWORK) INSTANCE JUMPER K11 K10 K9 K8 K7 K6 K5 K4 K3 K2 K1 Fig. 6 — Main Base Board Fig. 7 — Enable/Off/Remote Contact Switch, and Emergency On/O...
Page 21 - but should not be adjusted unless abso-; Capacity Control —
21 2. Insert and secure the red (+) wire to terminal 5 of the space temperature sensor terminal block. 3. Insert and secure the white (ground) wire to terminal 4 of the space temperature sensor. 4. Insert and secure the black (–) wire to terminal 2 of the space temperature sensor. 5. Connect the oth...
Page 22 - TEST; Fig. 10 — Energy Management Module
22 First Stage Override — If the current capacity stage is zero, the control will modify the routine with a 1.2 factor on adding the first stage to reduce cycling. This factor is also applied when the control is attempting to remove the last stage of capacity. Slow Change Override — The control prev...
Page 23 - DEADBAND EXAMPLE; LWT —; Leaving Water Temperature; Fig. 11 — Deadband Multiplier; SS; Fig. 12 — Operating Envelope for R-410A Compressor; Saturated Condensing Temperature; Saturated Suction Temperature
23 Ramp Loading — Ramp loading ( Configura- tion SLCT CRMP ) limits the rate of change of leaving fluid temperature. If the unit is in a Cooling mode and config- ured for Ramp Loading, the control makes 2 comparisons be- fore deciding to change stages of capacity. The control calcu- lates a temp...
Page 24 - Both main power and; Table 20 — Control Methods and Cooling Set Points; CONTROL
24 may be entered for systems with brine solutions, but this value should be set according to the freeze protection level of the brine mixture. Failure to properly set this brine freeze point val- ue may permanently damage the brazed plate heat exchanger. The control will initiate Mode 7 (Circuit A)...
Page 25 - Cooler Pump Sequence of Operation —; Fig. 13 — Dual Chiller Thermistor Location
25 Test the condenser output, cooler pump, liquid line solenoid valve (30MPA only), crankcase heater, water valve (accesso- ry), and alarm relay by changing the item values from OFF to ON. These discrete outputs are then turned off if there is no keypad activity for 10 minutes. When testing compress...
Page 26 - Table 21 — Dual Chiller Configuration (Master Chiller Example)
26 Table 21 — Dual Chiller Configuration (Master Chiller Example) SUB-MODE ITEM KEYPAD ENTRY DISPLAY ITEM EXPANSION COMMENTS DISP UNIT OPT1 OPT2 CTRL CONTROL METHOD CTRL 0 SWITCH DEFAULT 0 OPT2 CCN CCN CCNA 1 CCN ADDRESS DEFAULT 1 CCNB CCNB 0 CCN BUS NUMBER DEFAULT 0 CCN RSET PROCEED TO SUBMODE RESE...
Page 27 - Temperature Reset —; Fig. 14 — Dual Leaving Water Thermistor Well; PART
27 Table 21 — Dual Chiller Configuration (Master Chiller Example) (cont) NOTES: 1. Master Control Method (CTRL) can be configured as 0-Switch, 2-Occupancy or 3-CCN.2. Parallel Configuration (PARA) cannot be changed. Temperature Reset — The control system is capable of handling leaving-fluid temperat...
Page 28 - Table 22 — Dual Chiller Configuration (Slave Chiller Example)
28 Table 22 — Dual Chiller Configuration (Slave Chiller Example) NOTES: 1. Slave Control Method (CTRL) must be configured for 0.2. Slave CCN Address (CCNA) must be different than Master.3. Slave CCN Bus Number (CCNB) must be the same as Master4. Slave does not require SLVA, LLBL, LLBD, or LLDY to be...
Page 29 - Table 23 — Menu Configuration of 4 to 20 mA Cooling Set Point Control
29 Table 23 — Menu Configuration of 4 to 20 mA Cooling Set Point Control Table 24 — 4 to 20 mA Reset NOTE: The example above shows how to configure the chiller for4 to 20 mA reset. No reset will occur at 4.0 mA input, and a 5.0 Freset will occur at 20.0 mA. An EMM (energy management module)is requir...
Page 31 - Demand Limit —; Fig. 16 — Space Temperature Reset; Fig. 17 — Standard Chilled Fluid
31 Under normal operation, the chiller will maintain a constant leaving fluid temperature approximately equal to the chilled fluid set point. As the cooler load varies, the entering cooler fluid will change in proportion to the load as shown in Fig. 17. Usually the chiller size and leaving-fluid tem...
Page 32 - Energy Management Module
32 DEMAND LIMIT (CCN Loadshed Controlled) — To con- figure Demand Limit for CCN Loadshed control set the De- mand Limit Select ( Configuration RSET DMDC ) to 3. Then configure the Loadshed Group Number ( Configura- tion RSET SHNM ), Loadshed Demand Delta ( Configu- ration RSET SHDL ), an...
Page 33 - Table 27 — Configuring Demand Limit; System Check; Table 28 — Minimum Flow Rates and Minimum
33 Table 27 — Configuring Demand Limit *Seven items skipped in this example. PRE-START-UP Do not attempt to start the chiller until following checks have been completed. System Check 1. Check all auxiliary components, such as chilled fluid pumps, air-handling equipment, condenser pump or other equip...
Page 34 - A positive pressure indicates a charge in; full load; OIL; Fig. 20 — Sight Glass Location
34 START-UP AND OPERATION Compressor crankcase heaters must be on for 24 hours be- fore start-up. To energize the crankcase heaters, close the field disconnect. Leave the compressor circuit breakers off/open. The crankcase heaters are now energized.NOTE: Refer to Start-Up Checklist on pages CL-1 to ...
Page 35 - Operating Limitations; Table 29 — Temperature Limits for; TEMPERATURE LIMIT
35 LIQUID CHARGING METHOD — Add charge to the unit through the liquid line service valve. Never charge liquid into the low-pressure side of the system . 1. Close liquid line ball valve (30MPA only).2. Connect a refrigerant cylinder loosely to the high flow Schraeder valve connection on the liquid li...
Page 36 - Carefully; FASTENER
36 This voltage imbalance is satisfactory as it is below the maximum allowable of 2%. Control Circuit Power — Power for the control circuit is supplied from the main incoming power through a factory- installed control power transformer (TRAN1) for all models. Field wiring connections are made to the...
Page 37 - at full unit; HP
37 The strainers in front of the water/brine inlets of the heat exchangers should be cleaned periodically, depending on con- dition of the chiller water/brine. Oil Charge Puron refrigerant systems use a polyol ester (POE) oil. Use only Carrier approved compressor oil. Oil should be visible in compre...
Page 38 - The vent line must not be smaller than the relief; Check Unit Safeties; Table 31 — Factory Settings, High-Pressure; Thermistors —
38 MINIMUM LOAD VALVE — On units equipped with the factory-installed hot gas bypass option, a solenoid valve and discharge bypass valve (minimum load valve) are located between the discharge line and the cooler entering-refrigerant line. The MBB cycles the solenoid to perform minimum load valve func...
Page 39 - Chilled Water Flow Switch —; BASE; Fig. 23 — Thermistor Connections to; CLEARANCE FOR; Fig. 22 — Thermistor Well
39 gauge. Pressure readings should be within ± 15 psig. If the two readings are not reasonably close, replace the pressure transducer. Chilled Water Flow Switch — A factory-installed flow switch is installed in the leaving fluid piping for all units. This is a thermal-dispersion flow switch with no ...
Page 43 - WARNING
43 Table 35 — 10K Thermistor Temperature (°C) vs. Resistance/Voltage Drop (For SPT) Strainer — Periodic cleaning of the required field-installed strainer is required. Pressure drop across strainer in excess of 3 psi (21 kPa) indicates the need for cleaning. Normal (clean) pressure drop is approximat...
Page 44 - Table 36 — Replacement Modules; MAINTENANCE; fort; MODULE
44 6. Reinstall all module connectors. For accessory Naviga- tor™ device replacement, make sure the plug is installed at TB3 in the LEN connector. 7. Carefully check all wiring connections before restoring power. 8. Verify the ENABLE/OFF/REMOTE CONTACT switch is in the OFF position. 9. Restore contr...
Page 45 - Alarms and Alerts —; Fig. 25 — Advanced Scroll Temperature
45 To manually reset ASTP, the compressor should be stopped and allowed to cool. If the compressor is not stopped, the motor will run until the motor protector trips, which occurs up to 90 minutes later. Advanced scroll temperature protection will reset automatically before the motor protector reset...
Page 46 - Table 37 — Troubleshooting
46 Table 37 — Troubleshooting SYMPTOMS CAUSE REMEDY Compressor CyclesOff on Loss of Charge Loss of charge control. Acting erratically. Repair leak and recharge. Replace control. Low refrigerant charge Add refrigerant. Low suction temperature Raise cooler leaving fluid temperature set point. Compress...
Page 47 - Table 38 — Alarm and Alert Codes
47 Table 38 — Alarm and Alert Codes ALARM/ ALERT CODE ALARM OR ALERT DESCRIPTION WHY WAS THIS ALARM GENERATED? ACTION TAKEN BY CONTROL RESET METHOD PROBABLE CAUSE A048 Alarm Circuit A CompressorAvailability Alarm Two compressors on circuit failed Circuit shut down Manual Only one compressoroperating...
Page 53 - APPENDIX A — LOCAL DISPLAY TABLES; Run Status Mode and Sub-Mode Directory
53 APPENDIX A — LOCAL DISPLAY TABLES Run Status Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION CCN POINT COMMENT VIEW AUTO VIEW OF RUN STATUS EWT xxx.x ºF Entering Fluid Temp EWT LWT xxx.x ºF Leaving Fluid Temp LWT SETP xxx.x ºF Active Setpoint SP CTPT xxx.x ºF Control Point CTRL...
Page 56 - Configuration Mode and Sub-Mode Directory
56 APPENDIX A — LOCAL DISPLAY TABLES (cont) Configuration Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION CCN POINT COMMENT DISP DISPLAY CONFIGURATION TEST OFF/ON Test Display LEDs DISPTEST METR OFF/ON Metric Display DISPUNIT Off = English On = Metric LANG X Language Selection LAN...
Page 58 - Time Clock Mode and Sub-Mode Directory
58 APPENDIX A — LOCAL DISPLAY TABLES (cont) Time Clock Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION CCN POINT COMMENT TIME TIME OF DAY HH.MM XX.XX Hour and Minute TIME DATE MONTH, DATE, DAY, AND YEAR MNTH XX Month of Year MOY 1 to 12 (1 = January, 2 = February, etc.) DOM XX Day...
Page 63 - Operating Mode and Sub-Mode Directory
63 APPENDIX A — LOCAL DISPLAY TABLES (cont) Operating Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION CCN POINT COMMENT MODE MODES CONTROLLING UNIT MD01 OFF/ON FSM controlling Chiller MODE_1 MD02 OFF/ON WSM controlling Chiller MODE_2 MD03 OFF/ON Master/Slave control MODE_3 MD05 OF...
Page 64 - Alarms Mode and Sub-Mode Directory
64 APPENDIX A — LOCAL DISPLAY TABLES (cont) Alarms Mode and Sub-Mode Directory SUB-MODE ITEM DISPLAY ITEM DESCRIPTION CCN POINT COMMENT CRNT CURRENTLY ACTIVE ALARMS AA01AA02AA03AA04AA05AA06AA07AA08AA09AA10AA11AA12AA13AA14AA15AA16AA17AA18AA19AA20AA21AA22AA23AA24AA25 AXXX TXXX PXXX Current Alarms 1-25...
Page 65 - APPENDIX B — CCN TABLES; CCN DISPLAY TABLES — A_UNIT (General Unit Parameters
65 APPENDIX B — CCN TABLES CCN DISPLAY TABLES — A_UNIT (General Unit Parameters CCN DISPLAY TABLES — CIRCA_AN (Circuit A Analog Parameters) CCN DISPLAY TABLES — CIRCADIO (Circuit A Discrete Inputs/Outputs) DESCRIPTION VALUE UNITS POINT NAME FORCIBLE Control Mode 10-char ASCII STAT N Occupied No/Yes ...
Page 72 - CCN SERVICE TABLES — SERVICE
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53300053-01 Printed in U.S.A. Form 30MP-1T Pg 72 1-10 Replaces: New Copyright 2010 Carrier Corporation APPENDIX B — CCN TABLES (cont) CCN ...
Page 74 - (insert check mark as each item is completed); THOROUGHLY
CL-2 C. Unit Start-Up (insert check mark as each item is completed) CHILLER HAS BEEN PROPERLY INTERLOCKED WITH THE AUXILIARY CONTACTS OF THE CHILLED FLUID PUMP STARTER. CHILLER HAS BEEN PROPERLY INTERLOCKED WITH THE AUXILIARY CONTACTS OF THE CONDENSER WATER PUMP STARTER. CRANKCASE HEATERS HAVE...
Page 75 - CHECK PRESSURE DROP ACROSS COOLER.; FLUID ENTERING COOLER:; COOLER LOOP FREEZE PROTECTION IF REQUIRED:; NOTE: USE ESCAPE KEY TO GO UP ONE LEVEL IN THE STRUCTURE.
CL-3 C. Unit Start-Up (cont) CHECK PRESSURE DROP ACROSS COOLER. FLUID ENTERING COOLER: PSIG (kPa) FLUID LEAVING COOLER: PSIG (kPa) (PSIG DIFFERENCE) x 2.31 = FT OF FLUID PRESSURE DROP = PLOT COOLER PRESSURE DROP ON PERFORMANCE DATA CHART (LOCATED IN INSTALLATION INSTRUCTIONS LITERATURE) TO DETERMINE...
Page 76 - RECORD CONFIGURATION INFORMATION ON NEXT PAGE.
CL-4 C. Unit Start-Up (cont) Record Software VersionsMODE — RUN STATUS (PRESS ENTER AND ESCAPE SIMULTANEOUSLY TO OBTAIN SOFTWARE VERSIONS) USE ARROW/ESCAPE KEYS TO ILLUMINATE CONFIGURATION LED. PRESS ENTER KEY. RECORDINFORMATION BELOW. UNIT (Configuration Settings) PRESS ESCAPE KEY TO DISPLAY ‘UNIT’...
Page 77 - RECORD CONFIGURATION INFORMATION BELOW.; SETPOINT; COMPONENT TEST
CL-5 C. Unit Start-Up (cont) OPTIONS2 (Options Configuration) PRESS ESCAPE KEY TO DISPLAY ‘OPT2’. PRESS DOWN ARROW KEY TO DISPLAY ‘CCN’.PRESS ENTER KEY. RECORD CONFIGURATION INFORMATION BELOW. CCN (CCN Network Configuration) PRESS ESCAPE KEY SEVERAL TIMES TO GET TO THE MODE LEVEL (BLANK DISPLAY). US...
Page 78 - SERVICE TEST
CL-6 C. Unit Start-Up (cont) USE ESCAPE KEY TO RETURN TO ‘OUTS’ DISPLAY. PRESS DOWN ARROW TO DISPLAY ‘CMPA’.PRESS ENTER KEY TO DISPLAY ‘CC.A1’. NOTE THAT UNLOADERS AND HOT GAS BYPASS SOLENOIDS CAN BE TESTED BOTH WITH AND WITHOUT COMPRESSOR(S) RUNNING. MAKE SURE ALL SERVICE VALVES ARE OPEN AND COOLER...
Carrier 58CTA09010016
User Manual