Page 4 - It is important when connecting to a CCN communication; Table 2 — Thermistor Designations
4 Control Module Communication RED 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 should be blinking in unison at a rate of once every2 seconds. If the red LEDs are not blinki...
Page 10 - Fig. 5 — Main Base Board
10 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 EMERGENCY ON/OFFSWITCH ENABLE/OFF/REMOTECONTACT SWITCH GFI-CONVENIENCEOUTLET ACCESSORYON 208/230V 460 AND575V ONLY RESET ...
Page 11 - The electronic control uses 4 to 10 thermistors; AWG; EXV
11 OPERATING DATA Sensors — The electronic control uses 4 to 10 thermistors to sense temperatures for controlling chiller operation. SeeTable 2. These sensors are outlined below. See Fig. 7-10 forthermistor locations. Thermistors T1-T9 are 5 k Ω at 77 F (25 C). Thermistors T1, T2, T3-T6 and T7-T9 ha...
Page 12 - Fig. 8 — Thermistor T3 and T4 Locations
12 *When thermistor is viewed from perspective where the compressor is on the left and the cooler is on the right. Fig. 8 — Thermistor T3 and T4 Locations 040-070 080-110 AND ASSOCIATED MODULAR UNITS* 130-210 AND ASSOCIATED MODULAR UNITS*
Page 13 - EXV —
13 Fig. 9 — Compressor Thermistor Locations (T7 and T8) LEGEND EXV — Electronic Expansion Valve Fig. 10 — Typical Thermistor Location (30GTN,R and 30GUN,R 210, 315A, 390A, 420A/B Shown)
Page 14 - Fig. 11 — Typical Space Temperature
14 T10 — REMOTE SPACE TEMPERATURE SENSOR — Sensor T10 (part no. HH51BX006) is an accessory sensor thatis remotely mounted in the controlled space and used for spacetemperature reset. The sensor should be installed as awall-mounted thermostat would be (in the conditioned spacewhere it will not be sub...
Page 16 - Capacity Control —
16 Electronic Expansion Valve (EXV) (SeeFig. 15) — Standard units are equipped with a bottom seal EXV. This device eliminates the use of the liquid line solenoidpumpdown at unit shutdown. An O-ring has been added to bot-tom of orifice assembly to complete a seal in the valve on shut-down. This is no...
Page 17 - The capacity control algorithm runs every 30 seconds. The; TEST; Fig. 16 — Energy Management Module
17 The capacity control algorithm runs every 30 seconds. The algorithm attempts to maintain the leaving chilled water tem-perature at the control point. Each time it runs, the control readsthe entering and leaving fluid temperatures. The control deter-mines the rate at which conditions are changing ...
Page 18 - Table 5A — Part Load Data Percent Displacement, Standard Units
18 Table 5A — Part Load Data Percent Displacement, Standard Units *Unloaded compressor. NOTE: These capacity control steps may vary due to lag compressor sequencing. UNIT 30GTN,R 30GUN,R CONTROL STEPS LOADING SEQUENCE A LOADING SEQUENCE B % Displacement (Approx) Compressors % Displacement (Approx) C...
Page 19 - Table 5A — Part Load Data Percent Displacement, Standard Units (cont)
19 Table 5A — Part Load Data Percent Displacement, Standard Units (cont) *Unloaded compressor. NOTE: These capacity control steps may vary due to lag compressor sequencing. UNIT 30GTN,R 30GUN,R CONTROL STEPS LOADING SEQUENCE A LOADING SEQUENCE B % Displacement (Approx) Compressors % Displacement (Ap...
Page 26 - Table 6 — Required Hardware for Additional Unloaders
26 ADDING ADDITIONAL UNLOADERS — See Table 6 below for required hardware. Follow accessory instructions for installation. Connect un- loader coil leads to PINK wires in compressor A1/B1 junctionbox. Configuration items CA.UN and CB.UN in the OPT1sub-mode of the configuration mode must be changed to ...
Page 27 - The pumpout cycle starts immediately upon starting the; DEADBAND EXAMPLE; Fig. 17 — Deadband Multiplier; LWT —
27 Low Cooler Suction Temperature — To avoid freezing thecooler, the control will compare the circuit Cooler Suction tem-perature (T5/T6) with a predetermined freeze point. If the cool-er fluid selected is Water, the freeze point is 34 F (1.1 C). If thecooler fluid selected is Brine, the freeze poin...
Page 28 - Fig. 18 — Condenser Fan Sequence
28 *Control box.†Fan numbers 11 and 12 do not apply to 30GTN,R and 30GUN,R 130-170 and associated modular units (see Table 1). Fig. 18 — Condenser Fan Sequence FAN ARRANGEMENT FAN NO. FAN RELAY NORMAL CONTROL 30GTN,R040-05030GUN,R040-050 1 — Compressor No. A1 2 — Compressor No. B1 3 1 First Stage of...
Page 29 - ESCAPE; Fig. 19 — Scrolling Marquee Display
29 Marquee Display Usage (See Fig. 19 andTables 7-25) — The Marquee display module provides the user interface to the ComfortLink™ control system. The dis-play has up and down arrow keys, an key, and an key. These keys are used to navigate through the dif- ferent levels of the display structure. See...
Page 30 - Table 7 — Marquee Display Menu Structure; Fig. 20 — Dual Chiller Thermistor Location
30 Table 7 — Marquee Display Menu Structure LEGEND Ckt — Circuit RUN STATUS SERVICE TEST TEMPERATURES PRESSURES SET POINTS INPUTS OUTPUTS CONFIGURATION TIME CLOCK OPERATING MODES ALARMS Auto Display(VIEW) Manual Mode On/Off (TEST) Unit Temperatures (UNIT) Ckt A Pressures (PRC.A) Cooling (COOL) Unit ...
Page 31 - Table 8 — Run Status Mode and Sub-Mode Directory
31 Table 8 — Run Status Mode and Sub-Mode Directory SUB-MODE KEYPAD ENTRY ITEM RANGE ITEM EXPANSION COMMENT VIEW EWT 0 - 100 F (–18 - 38 C) ENTERING FLUID TEMP LWT 0 - 100 F (–18 - 38 C) LEAVING FLUID TEMP SETP 0 - 100 F (–18 - 38 C) ACTIVE SETPOINT CTPT 0 - 100 F (–18 - 38 C) CONTROL POINT STAT 0 -...
Page 32 - Table 9 — Service Test Mode and Sub-Mode Directory
32 Table 9 — Service Test Mode and Sub-Mode Directory LEGEND EXV — Electronic Expansion Valve SUB-MODE KEYPAD ENTRY ITEM RANGE ITEM EXPANSION COMMENT TEST TEST OFF-ON SERVICE TEST MODE Use to Enable/Disable Manual Mode OUTS LLS.A OPEN-CLSE LIQ. LINE SOLENOID VALVE TXV units only EXV.A 0 - 100% EXV %...
Page 42 - Table 23 — Operating Modes; ITEM EXPANSION
42 Table 23 — Operating Modes MODE NO. ITEM EXPANSION DESCRIPTION 01 FSM CONTROLLING CHILLER Flotronic™ System Manager (FSM) is controlling the chiller. 02 WSM CONTROLLING CHILLER Water System Manager (WSM) is controlling the chiller. 03 MASTER/SLAVE CONTROL Lead/Lag Chiller control is enabled. 04 L...
Page 43 - Temperature Reset —; The control system is capable of; Fig. 21 — Standard Chilled Fluid
43 Table 24 — Alarms Mode and Sub-Mode Directory Table 25 — Example of Reading and Clearing Alarms Temperature Reset — The control system is capable of handling leaving-fluid temperature reset based on return coolerfluid temperature. Because the change in temperature throughthe cooler is a measure o...
Page 44 - Table 26 — Configuring Temperature Reset; The following are examples of outdoor air and space tem-
44 Table 26 — Configuring Temperature Reset The following are examples of outdoor air and space tem- perature resets: MODE KEYPAD ENTRY SUB-MODE KEYPAD ENTRY ITEM DISPLAY ITEM EXPANSION COMMENT CONFIGURATION DISP TEST ON/OFF TEST DISPLAY LEDS UNIT TYPE UNIT TYPE OPT1 FLUD COOLER FLUID OPT2 CTRL CONT...
Page 45 - A field supplied; Table 27 — Menu Configuration of 4 to 20 mA Cooling Set Point Control
45 Cooling Set Point (4 to 20 mA) — A field supplied and generated, externally powered 4 to 20 mA signal can beused to provide the leaving fluid temperature set point. Connectthe signal to TB6-3,5 (+,–). See Table 27 for instructions to enable the function. Figure 22 shows how the 4 to 20 mA sig-nal...
Page 46 - Demand Limit —; Demand Limit is a feature that allows; Table 28 — Configuring Demand Limit
46 Demand Limit — Demand Limit is a feature that allows the unit capacity to be limited during periods of peak energyusage. There are 3 types of demand limiting that can be config-ured. The first type is through 2-stage switch control, whichwill reduce the maximum capacity to 2 user-configurable per...
Page 47 - Fig. 23 — 4 to 20 mA Demand Limiting
47 TROUBLESHOOTING Compressor Protection Control System(CPCS) Board — The compressor protection board con- trols the compressor and compressor crankcase heater. The ground current protection is provided by the compres- sor board. The large relay located on the board is used to provide a feedback sig...
Page 48 - Alarms and Alerts —
48 2. Make sure that thermistor leads are connected to the proper pin terminals at the J5 connector on EXV boardand that thermistor probes are located in proper positionin the refrigerant circuit. When these checks have been completed, the actual opera- tion of the EXV can be checked by using the pr...
Page 49 - Table 29 — Alarm and Alert Codes
49 Table 29 — Alarm and Alert Codes ALARM/ ALERT CODE ALARM OR ALERT DESCRIPTION WHY WAS THIS ALARM GENERATED? ACTION TAKEN BY CONTROL RESET METHOD PROBABLE CAUSE T051 Aler t Circuit A, Compressor 1Failure Compressor feedback signal does not match relay state Circuit A shut down. Manual High-pressur...
Page 53 - Table 30 — Oil Charge; Do not reuse drained oil or any oil that has been exposed to; Cooler —; COMPRESSOR
53 SERVICE Electronic Components CONTROL COMPONENTS — Unit uses an advanced elec-tronic control system that normally does not require service.For details on controls refer to Operating Data section.30GTN,R AND 30GUN,R 040-110, AND 230B-315BUNIT CONTROL BOX — When facing compressors, maincontrol box ...
Page 54 - Fig. 24 — Cooler Thermistor Locations
54 7. Remove the liquid lines by breaking the silver-soldered joints at the cooler liquid line nozzles. 8. On 30GTN,GTR and 30GUN,R 080-110 and 230B-315B units, remove the vertical support(s) under the condensercoil in front of the cooler. Provide temporary support asneeded. Save all screws for rein...
Page 56 - Condenser Coils; Fig. 27 — Cooler Head Bolt Tightening Sequence (Typical Tube Sheet)
56 3. Apply torque in one-third steps until required torque is reached. Load all bolts to each one-third step before pro-ceeding to next one-third step. 4. No less than one hour later, retighten all bolts to required torque values. 5. After refrigerant is restored to system, check for refriger- ant ...
Page 57 - Enviro-ShieldTM Coil Cleaner Application Equipment; Condenser Fans —; DIMENSION
57 Enviro-Shield™ Coil Cleaner Application Equipment • 2 1 / 2 Gallon Garden Sprayer • Water Rinse with Low Velocity Spray Nozzle Enviro-Shield Coil Cleaner Application Instructions• Although Enviro-Shield Coil cleaner is harmless tohumans, animals, and marine life, proper eye protectionsuch as safe...
Page 58 - Refrigerant Feed Components —; Fig. 31 — Printed Circuit Board Connector
58 Refrigerant Feed Components — Each circuit has all necessary refrigerant controls.ELECTRONIC EXPANSION VALVE (EXV) — A cut-away view of valve is shown in Fig. 30. High-pressure liquid refrigerant enters valve through bot- tom. A series of calibrated slots have been machined in side oforifice asse...
Page 59 - Thermistors —; Fig. 33 — Thermistor Connections to J5 and J8; LWT
59 Thermistors — Electronic control uses 4 to 10 ther- mistors to sense temperatures used to control the operation ofchiller. Thermistors T1-T9 vary in their temperature vs resistance and voltage drop performance. Thermistor T10 is a 10 k Ω in- put channel and has a different set of temperature vs r...
Page 60 - Table 32A — 5K Thermistor Temperature (F) vs Resistance/Voltage; VOLTAGE DROP B FOR THERMISTORS T3-T6
60 Table 32A — 5K Thermistor Temperature (F) vs Resistance/Voltage VOLTAGE DROP A FOR THERMISTORS T1, T2, T7-T9 VOLTAGE DROP B FOR THERMISTORS T3-T6 TEMP (F) VOLTAGE DROP A (V) VOLTAGE DROP B (V) RESISTANCE (Ohms) –25 3.699 4.538 98,010 –24 3.689 4.523 94,707 –23 3.679 4.508 91,522 –22 3.668 4.493 8...
Page 64 - Safety Devices —; Table 34 — Pressure Switch Settings,; SWITCH; Fig. 34 — Cooler Heater Cables
64 Safety Devices — Chillers contain many safety devices and protection logic built into electronic control. Following is abrief summary of major safeties.COMPRESSOR PROTECTIONCircuit Breaker — One manual-reset, calibrated-trip magneticcircuit breaker for each compressor protects against overcur-ren...
Page 65 - Fig. 35 — Compressor Connections
65 Relief Devices — Fusible plugs are located in each cir- cuit to protect against damage from excessive pressures.HIGH-SIDE PROTECTION — One device is located between condenser and filter drier; a second is on filter drier.These are both designed to relieve pressure on a temperaturerise to approxim...
Page 66 - START-UP AND OPERATION; Actual start-up should be done only; Operating Limitations; Table 35 — Temperature Limits for Standard Units
66 START-UP AND OPERATION NOTE: Refer to Start-Up Checklist on pages CL-1 to CL-8. Actual Start-Up — Actual start-up should be done only under supervision of a qualified refrigeration mechanic. 1. Be sure all service valves are open. Units are shipped from factory with suction, discharge, and liquid...
Page 67 - Operation Sequence —
67 Consult application data section in the Product Data litera- ture and job design requirements to determine flow rate re-quirements for a particular installation. Table 36 — Nominal and Minimum Cooler Fluid Flow Rates LEGEND *Nominal flow rates required at ARI conditions are 44 F (6.7 C) leaving-f...
Page 68 - PLUG; Fig. 36 — Accessory Sensor
68 LEGEND FOR FIG. 36-41 ALM — Alarm CWFS — Chilled Water Flow Switch CWP — Chilled Water Pump CWPI — Chilled Water Pump Interlock CXB — Compressor Expansion Board HGBPS — Hot Gas Bypass Switch LWT — Leaving Fluid Temperature MBB — Main Base Board OAT — Outdoor-Air Temperature Sensor SPT — Remote Sp...
Page 71 - APPENDIX A — CCN TABLES
71 APPENDIX A — CCN TABLES UNIT (Configuration Settings) OPTIONS1 (Options Configuration) *Unit size dependent. DESCRIPTION STATUS DEFAULT UNITS POINT 1 Unit Type 1 = Air Cooled2 = Water Cooled3 = Split System4 = Heat Machine5 = Air Cooled Heat Reclaim 1 UNIT_TYP 2 Unit Size 20 to 300 * TONS SIZE 3 ...
Page 73 - RESETCON (Temperature Reset and Demand Limit)
73 APPENDIX A — CCN TABLES (cont) RESETCON (Temperature Reset and Demand Limit) BRODEFS (Broadcast POC Definition Table) DESCRIPTION STATUS DEFAULT UNITS POINT 1 COOLING RESET 2 Cooling Reset Type 0 = No Reset1 = 4-20 ma input2 = External temp-OAT3 = Return fluid4 = External temp-SPT 0 CRST_TYP 3 No...
Page 79 - WSM EQUIPMENT PART COOL SOURCE MAINTENANCE TABLE; SUPERVISOR MAINTENANCE TABLE; OCCUPANCY MAINTENANCE TABLE; OCCUPANCY SUPERVISORY
79 APPENDIX A — CCN TABLES (cont) CSM/FSM EQUIPMENT TABLE (Type 621H, Block 2) WSM EQUIPMENT PART COOL SOURCE MAINTENANCE TABLE SUPERVISOR MAINTENANCE TABLE OCCUPANCY MAINTENANCE TABLE OCCUPANCY SUPERVISORY LINE DESCRIPTION POINT 1 Chiller Status0 = Chiller is off1 = Valid run state in CCN mode 2 = ...
Page 80 - APPENDIX B — FLUID DROP PRESSURE CURVES; ENGLISH AND SI
80 APPENDIX B — FLUID DROP PRESSURE CURVES Cooler Fluid Pressure Drop Curves — 30GUN,GUR040-110 ENGLISH AND SI LEGEND NOTE: Ft of water = 2.31 x change in psig. — 040 — 045,050
Page 81 - APPENDIX B — FLUID DROP PRESSURE CURVES (cont); ENGLISH; COOLER PRESSURE DROP KEY
81 APPENDIX B — FLUID DROP PRESSURE CURVES (cont) Cooler Fluid Pressure Drop Curves — 30GUN,GUR130-210 ENGLISH SI COOLER PRESSURE DROP KEY 1 — 30GUN,GUR130,150 2 — 30GUN,GUR170,190 3 — 30GUN,GUR210 NOTE: Ft of water = 2.31 x change in psig.
Page 83 - Cooler Fluid Pressure Drop Curves — 30GUN,GUR230B-315B
83 APPENDIX B — FLUID DROP PRESSURE CURVES (cont) Cooler Fluid Pressure Drop Curves — 30GUN,GUR230B-315B ENGLISH AND SI COOLER PRESSURE DROP KEY 1 Module B — 30GUN,GUR230,245 2 Module B — 30GUN,GUR255,290,315 NOTE: Ft of water = 2.31 x change in psig.
Page 88 - SERVICE TRAINING
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 903 Catalog No. 563-025 Printed in U.S.A. Form 30GTN-3T Pg 88 3-00 Replaces: 30GTN-2T Book 2 Tab 5c Copyright 2000 Carrier Cor poration SERVICE TRAINI...
Page 89 - START-UP CHECKLIST FOR; COMFORT; LINKTM CHILLER SYSTEMS
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 903 Catalog No. 563-025 Printed in U.S.A. Form 30GTN-3T Pg CL-1 3-00 Replaces: 30GTN-2T Book 2 Tab 5c C U T A L ONG DO TT ED L INE CUT A L ONG D O T T...
Page 90 - B. Preliminary Equipment Check; CHECK AIR SYSTEMS
CL-2 B. Preliminary Equipment Check (Check box if complete) IS THERE ANY SHIPPING DAMAGE? IF SO, WHERE _________________________________________________________________________________________ WILL THIS DAMAGE PREVENT UNIT START-UP? HAVE COMPRESSOR BASE RAIL ISOLATORS ALL BEEN PROPERLY ADJUSTED? CHE...
Page 94 - RECORD CONFIGURATION INFORMATION BELOW:; SETPOINT; TEMPERATURE
CL-6 C. Unit Start-Up (cont) PRESS ESCAPE KEY TO DISPLAY ‘RSET’. PRESS DOWN ARROW KEY TO DISPLAY ‘SLCT’.PRESS ENTER KEY. RECORD CONFIGURATION INFORMATION BELOW: SLCT (Heating Cooling Setpoint Select) PRESS ESCAPE KEY SEVERAL TIMES TO GET TO THE MODE LEVEL (BLANK DISPLAY). USE THEARROW KEYS TO SCROLL...
Page 96 - CIRCUIT A
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. PC 903 Catalog No. 563-025 Printed in U.S.A. Form 30GTN-3T Pg CL-8 3-00 Replaces: 30GTN-2T Book 2 Tab 5c Copyright 2000 Carrier Cor poration All Units: M...
Carrier 58CTA09010016
User Manual