7EX Externally Geared Centrifugal Liquid Chillers 50/60 Hz 1500 to 2250 Nominal Tons (5280 to 7910 kW) Start-Up, Operation, and Maintenance Instructions SAFETY CONSIDERATIONS Centrifugal liquid chillers are designed to provide safe and reliable service when operated within design specifications. When operating this equipment, use good judgment and safety precautions to avoid damage to equipment and property or injury to personnel.
CONTENTS Page Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 17EX CHILLER FAMILIARIZATION . . . . . . . . . . . . . . . . . 5 Chiller Identification Label . . . . . . . . . . . . . . . . . . . . . . . 5 System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Cooler . . . . . . . . . . . . . . . . . . . . .
CONTENTS Page Page Inspect Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Check Optional Pumpout Compressor Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Check Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Inspect Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 • CHECK INSULATION RESISTANCE Motor Pre-Start Checks . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS (cont) Page Page Motor Handling/Rigging . . . . . . . . . . . . . . . . . . . . . . . . 81 Motor Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 External Gear Storage . . . . . . . . . . . . . . . . . . . . . . . . . 81 • SHORT-TERM STORAGE (Indoors) • LONG-TERM STORAGE (Indoors) • EXTENDED DOWNTIME Compressor Bearing Maintenance . . . . . . . . . . . . . . . 82 External Gear Maintenance . . . . . . . . . . . . . . . . . . . . . 82 Inspect the Heat Exchanger Tubes . . .
INTRODUCTION 17EX CHILLER FAMILIARIZATION Before initial start-up of the 17EX unit, those involved in the start-up, operation, and maintenance should be thoroughly familiar with these instructions and other necessary job data. This book is outlined so that you may become familiar with the control system before performing start-up procedures. Procedures in this manual are arranged in the sequence required for proper chiller start-up and operation. Chiller Identification Label (Fig.
LEGEND NIH — Nozzle-In-Head *Any available cooler size can be combined with any available condenser size. NOTE: For details on motor size designations, see below. ASME ‘U’ STAMP ARI (Air Conditioning and Refrigeration Institute) PERFORMANCE CERTIFIED (60 Hz Only) Fig.
1 40 2 3 4 5 6 7 8 9 10 11 12 13 14 39 38 37 36 35 15 34 33 32 31 30 28 29 27 26 25 24 23 22 21 20 19 18 17 LEGEND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 — — — — — — — — — — — — — — — — — — — — — Condenser Cooler Suction Pipe Compressor Suction Elbow Guide Vane Actuator Condenser Discharge Pipe Compressor Discharge Elbow Two-Stage Compressor Economizer Gas Line to Compressor Compressor Housing Access Cover High-Speed Coupling (Hidden) External Gear (Speed In
The chiller compressor continuously draws large quantities of refrigerant vapor from the cooler at a rate determined by the amount of guide vane opening. This compressor suction reduces the pressure within the cooler, allowing the liquid refrigerant to boil vigorously at a fairly low temperature (typically 38 to 42 F [3 to 6 C]). The liquid refrigerant obtains the energy needed to vaporize by removing heat from the water or brine in the cooler tubes.
LEGEND TXV — Thermostatic Expansion Valve Liquid Liquid/Vapor Vapor *The FX compressor and the gear have a water cooled oil cooler. Fig. 3 — Refrigeration, Cycle Upon leaving the cooler section (Item 13) of the oil cooler/ filter, the oil is filtered (Item 11) and is directed to the pressure control valve (Item 7). Before entering the pressure control valve, the oil pressure (Item 16) and temperature (Item 8) are monitored by the PIC. A portion of the oil then lubricates the gear bearings (Item 2).
SHAFT DISPLACEMENT & BRG TEMP. CUTOUT CONNECTIONS COAST DOWN RESERVOIRS 1 SEAL-END BEARING 13 COMPRESSOR OIL PRESSURE LEAVING FILTER LINE 2 SHAFT SEAL 12 JOURNAL BEARING 14 THRUST BEARING CHECK VALVE 15 OIL FILTER 16 OIL COOLER/ FILTER 17 TO PIC CONTROLLER 3 OIL CHARGING ELBOW 8 MAIN OIL RESERVOIR PLUG VALVE 4 11 PUMP, SEAL OIL RETURN SIGHT GLASSES 10 OIL PUMP & PRESS.
1 2 3 4 5 6 — — — — — — Gear Mesh Bearings Gear Mesh Spray Oil Level Glass Orifice Oil Supply Pressure Transducer 7 — Pressure Control Valve NOTE: The oil reservoir is at the base of the gear box. 8 9 10 11 12 13 14 — — — — — — — Oil Supply Temperature Thermistor Oil Pump Motor Oil Pump and Pressure Regulator Oil Filter Oil Cooler/Filter Oil Cooler Plug Valve Fig.
• power panel — 115 v control voltage — up to 600 v for oil pump power • starter cabinet — chiller power wiring (per job requirement) PIC System Components — The Product Integrated Control (PIC) is the control system on the chiller. See Table 1. The PIC controls the operation of the chiller by monitoring all operating conditions. The PIC can diagnose a problem and let the operator know what the problem is and what to check.
LEGEND 13 — Condenser Pressure Transducer 14 — Condenser Entering Water Temperature Sensor 15 — Condenser Entering and Leaving Water Temperature Cable 16 — Oil Suction Pressure Sensor 17 18 19 20 — — — — Oil Pump Conduit Oil Pump Sensor PIC Control Panel Condenser Leaving Water Temperature Sensor 21 — Gear Oil Cooler Solenoid Conduit LEGEND 22 23 24 25 26 — — — — — Cooler Temperature Cable Cooler Leaving Water Temperature Sensor Cooler Entering Water Temperature Sensor Cooler Pressure Sensor Refrigera
Fig. 6 — 17EX Controls and Sensor Locations (cont) Fig. 7 — Control Sensors (Temperature) Fig.
EQUIP GND GRD M TEWAC LEGEND — Equipment Ground — Ground — Motor — Totally Enclosed Water-toAir Cooled Fig.
incoming control voltage to either 21 vac power for the PSIO module and options modules, or 24 vac power for 3 power panel contactor relays and a control solenoid valve. CONTROL AND OIL HEATER VOLTAGE SELECTOR (S1) — It is necessary to use 115 v incoming control power in the power panel. The switch must be set to the 115-v position. OIL DIFFERENTIAL PRESSURE/POWER SUPPLY MODULE — This module, which is located in the control center, provides 5 vdc power for the transducers and LID backlight.
• Press NEXT or PREVIOUS to highlight the desired entry. NOTE: When an alarm is detected, the LID default screen freezes (stops updating) at the time of alarm. The freeze enables the operator to view the chiller conditions at the time of the alarm. The status tables show the updated information. Once all alarms have been cleared (by pressing the RESET softkey), the default LID screen returns to normal operation. • Press SELECT to access the highlighted point.
Override Indication — An override value is indicated by ‘‘SUPVSR,’’ ‘‘SERVC,’’ or ‘‘BEST’’ flashing next to the point value on the Status table. 3. Press SELECT to view the desired Point Status table. TO VIEW OR CHANGE TIME SCHEDULE OPERATION (Fig. 14) 4. On the Point Status table press NEXT or PREVIOUS until desired point is displayed on the screen. 1. On the Menu screen, press SCHEDULE . 2. Press NEXT or PREVIOUS to highlight one of the following schedules.
DEFAULT SCREEN LOCAL CCN RESET MENU (SOFTKEYS) Start Chiller In CCN Control Start Chiller In Local Control Clear Alarms Access Main Menu STATUS SCHEDULE SETPOINT SERVICE 1 2 3 4 (ENTER A 4-DIGIT PASSWORD) List the Status Tables List the Service Tables Display the Setpoint Table STATUS 01 STATUS 02 STATUS 03 STATUS 04 List the Schedules NEXT PREVIOUS SELECT EXIT (SELECT A TABLE) NEXT PREVIOUS SELECT EXIT (SELECT A POINT ON THE TABLE) START STOP RELEASE ENTER (MODIFY A DISCRETE PO
SERVICE TABLE NEXT PREVIOUS SELECT EXIT ALARM HISTORY Display Alarm History (The table holds up to 25 alarms and alerts with the last alarm at the top of the screen.
SERVICE MENU CONTINUED FROM PREVIOUS PAGE EQUIPMENT SERVICE (See Table 2, Examples 8, 9, and 10) Service Tables: (See Note) • SERVICE1 • SERVICE2 • SERVICE3 Select a Service Table SELECT PREVIOUS NEXT EXIT Select a Service Table Parameter SELECT PREVIOUS NEXT EXIT Modify a Service Table Parameter INCREASE DECREASE QUIT ENTER (ANALOG VALUES) ENABLE DISABLE QUIT ENTER (DISCRETE VALUES) NO YES QUIT ENTER (DISCRETE VALUES) TIME AND DATE Display Time and Date Table: • To Modify — Time — Day of W
6. a. Press INCREASE or DECREASE to change the time values. Override values are in one-hour increments, up to 4 hours. 4. Press SELECT to modify the highlighted set point. 5. Press INCREASE or DECREASE to change the selected set point value. b. Press ENABLE to select days in the day-of-week fields. Press DISABLE to eliminate days from the period. 6. Press ENTER to save the changes and return to the previous screen. 7.
Table 2 — LID Display Data 5. The items in the Reference Point Name column do not appear on the LID screen. They are data or variable names used in CCN or Building Supervisor software. They are listed in these tables as a convenience to the operator if it is necessary to cross reference CCN/BS documentation or use CCN/BS programs. For more information, see the 17EX CCN literature. 6. Reference Point Names shown in these tables in all capital letters can be read by CCN and Building Supervisor software.
Table 2 — LID Display Data (cont) EXAMPLE 2 — STATUS02 DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press STATUS . 3. Scroll down to highlight STATUS02. 4. Press SELECT .
Table 2 — LID Display Data (cont) EXAMPLE 4 — STATUS04 DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press STATUS . 3. Scroll down to highlight STATUS04. 4. Press SELECT . DESCRIPTION Main Gear Oil Pump Auxiliary Gear Oil Pump Gear Oil Pressure Gear Oil Temperature RANGE UNITS −6.
Table 2 — LID Display Data (cont) EXAMPLE 6 — CONFIGURATION (CONFIG) DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight EQUIPMENT CONFIGURATION. 4. Press SELECT . 5. Scroll down to highlight CONFIG. 6. Press SELECT .
Table 2 — LID Display Data (cont) EXAMPLE 7 — LEAD/LAG CONFIGURATION DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight EQUIPMENT CONFIGURATION. 4. Press SELECT . 5. Scroll down to highlight LEAD/LAG. 6. Press SELECT .
Table 2 — LID Display Data (cont) EXAMPLE 8 — SERVICE1 DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight EQUIPMENT SERVICE. 4. Press SELECT . 5. Scroll down to highlight SERVICE1. 6. Press SELECT .
Table 2 — LID Display Data (cont) EXAMPLE 9 — SERVICE2 DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight EQUIPMENT SERVICE. 4. Press SELECT . 5. Scroll down to highlight SERVICE2. 6. Press SELECT .
Table 2 — LID Display Data (cont) EXAMPLE 11 — MAINTENANCE (MAINT01) DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight CONTROL ALGORITHM STATUS. 4. Press SELECT . 5. Scroll down to highlight MAINT01.
Table 2 — LID Display Data (cont) EXAMPLE 13 — MAINTENANCE (MAINT03) DISPLAY SCREEN To access this display from the LID default screen: 1. Press MENU . 2. Press SERVICE . 3. Scroll down to highlight CONTROL ALGORITHM STATUS. 4. Press SELECT . 5. Scroll down to highlight MAINT03. 6. Press SELECT .
The PROPORTIONAL ECW GAIN can be adjusted at the LID display from a setting of 1.0 to 3.0, with a default setting of 2.0. Increase this setting to increase guide vane response to a change in entering chilled water temperature. DEMAND LIMITING — The PIC responds to the ACTIVE DEMAND LIMIT set point by limiting the opening of the guide vanes.
NOTE: This schedule is for illustration only, and is not intended to be a recommended schedule for chiller operation. Depending on its operating mode, the chiller uses the following occupancy schedules: • LOCAL mode — Occupancy Schedule 01(OCCPC01 on the SCHEDULE screen). • ICE BUILD mode — Occupancy Schedule 02 (OCCPC02 on the SCHEDULE screen). • CCN mode — Occupancy Schedule 03-99 (OCCPC02OCCPC99 on the SCHEDULE screen).
Table 3 — Protective Safety Limits and Control Settings MONITORED PARAMETER TEMPERATURE SENSORS OUT OF RANGE PRESSURE TRANSDUCERS OUT OF RANGE COMPRESSOR DISCHARGE TEMPERATURE BEARING TEMPERATURE LIMIT APPLICABLE COMMENTS –40 to 245 F (–40 to 118.3 C) Must be outside range for 2 seconds 0.08 to 0.98 Voltage Ratio Must be outside range for 2 seconds. Ratio = Input Voltage ÷ Voltage Reference .220 F (104.4 C) Preset, alert setting configurable .220 F (104.
2. The motor load ramp loading rate is an operator-configured value that limits the rate at which the compressor motor current or compressor motor load increases. (LOAD PULLDOWN %/MIN on the CONFIG screen). To select the ramp type, highlight the SELECT RAMP TYPE parameter on the CONFIG screen and select either 0 (TEMP) or 1 (LOAD). Motor load (1) is the default ramp loading control type.
Oil Cooler — The oil for the external gear and the com- Condenser Freeze Prevention — This control algorithm helps prevent condenser tube freeze-up by energizing the condenser pump relay. If the pump is controlled by the PIC, starting the pump helps prevent the water in the condenser from freezing. Condenser freeze prevention can occur whenever the chiller is not running except when it is either actively in pumpdown or in pumpdown lockout with the freeze prevention disabled.
Water/Brine Reset — Three types of chilled water/ brine reset are available, Reset Type 1, Reset Type 2, and Reset Type 3. They can be viewed or modified on the CONFIG screen (accessed from the EQUIPMENT CONFIGURATION table). See Table 2, Example 6. The LID default screen status message indicates when a reset is active. The WATER/BRINE CONTROL POINT temperature on the STATUS01 table indicates the chiller’s current reset temperature.
parameter, Table 2, Example 13) can be monitored on the MAINT03 screen. The SURGE TIME PERIOD parameter is displayed and configured on the SERVICE1 screen. See Table 2, Example 8. It has a default of 2 minutes. Lead/Lag Control — Lead/lag is a control system process that automatically starts and stops a lag or second chiller in a 2-chiller system. Refer to Fig. 15 and 16 for menu, table, and screen selection information.
LEAD/LAG OPERATION — The PIC control has the capability to operate 2 chillers in the lead/lag mode. It also has the additional capability to start a designated standby chiller when either the lead or lag chiller is not operating and capacity requirements are not being met. The lead/lag option operates in CCN mode only. If any other chiller configured for lead/lag is set to the LOCAL or OFF modes, it will be unavailable for lead/lag operation.
build period, the WATER/BRINE CONTROL POINT is set to the ICE BUILD SETPOINT (SETPOINT screen) for temperature control. The ICE BUILD RECYCLE OPTION and ICE BUILD TERMINATION parameters are on the CONFIG screen. The ice build recycle option can be enabled or disabled from this screen; the ice build termination value can be set to 0, 1, or 2, depending on the factor that determines termination (temperature, contacts, or both).
Figure 20 shows the ATTACH TO NETWORK DEVICE table as it appears on the LID. The LOCAL entry is always the PSIO module address of the chiller the LID is mounted on. Whenever the controller identification of the PSIO is changed, this change is reflected on the bus and address for the LOCAL DEVICE of the ATTACH TO DEVICE screen automatically. TEMPERATURE CONTROL DURING ICE BUILD —During ice build, the capacity control algorithm uses the WATER/BRINE CONTROL POINT minus 5 F (2.
NOTE: The LID does not automatically re-attach to the PSIO module on the chiller. Access the ATTACH TO NETWORK DEVICE table, scroll to LOCAL, and press the ATTACH softkey to upload the local device. The software for the local chiller will now be uploaded. EF, EX, FA CHLR HOLDY01S CONFIGURATION SELECT Service Operation — Figure 16 shows an overview of the service menu. TO ACCESS THE SERVICE SCREENS 1. On the MENU screen, press the SERVICE softkey. The softkeys now correspond to the numerals 1, 2, 3, and 4.
If the checks are successful, the chilled water/brine pump relay is energized. Five seconds later, the condenser pump relay is energized. One minute later the PIC monitors the chilled water and condenser water flow switches, and waits until the WATER FLOW VERIFY TIME (operator configured, default 5 minutes) to confirm flow. See the SERVICE1 screen or Table 2, Example 8. After flow is verified, the chilled water/brine temperature is compared to WATER/BRINE CONTROL POINT plus DEADBAND.
When the automatic soft stop amps threshold is being applied, a status message, SHUTDOWN IN PROGRESS, COMPRESSOR UNLOADING, displays. If any of these requirements are not met, the PIC aborts the start and displays the applicable pre-start mode of failure on the LID default screen. A pre-start failure does not advance the STARTS IN 12 HOURS counter (STATUS01 screen).
Safety Shutdown — A safety shutdown is identical to a manual shutdown with the exception that the LID displays the reason for the shutdown, the alarm light blinks continuously, and the spare alarm contacts are energized. A safety shutdown requires that the RESET softkey be pressed in order to clear the alarm. If the alarm continues, the alarm light continues to blink. Once the alarm is cleared, the operator must press the CCN or LOCAL softkeys to restart the chiller.
The rotation direction of the motor is shown either on the motor nameplate or on the certified drawing. Information on the required phase rotation of the incoming power for this motor may also be found on the nameplate or drawing. If either is unknown, the correct sequence can be determined as follows. While the motor is uncoupled from the load, start the motor and observe the direction of rotation. Allow the motor to achieve full speed before disconnecting it from the power source.
Fig.
Table 5A — HFC-134a Pressure — Temperature (F) TEMPERATURE (F) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 Table 5B — HFC-134a Pressure — Temperature (C) PRESSURE (psi) 6.50 7.52 8.60 9.66 10.79 11.96 13.17 14.42 15.72 17.06 18.45 19.88 21.37 22.90 24.48 26.11 27.80 29.53 31.32 33.17 35.08 37.04 39.06 41.14 43.28 45.48 47.
4. Leak Determination — If an electronic leak detector indicates a leak, use a soap bubble solution, if possible, to confirm it. Total all leak rates for the entire chiller. Leakage for the entire chiller at rates greater than the EPA (Environmental Protection Agency) guidelines or local codes must be repaired. Note the total chiller leak rate on the start-up report. This leak rate repair is only for new startups.
6. Check that all electrical equipment and controls are properly grounded in accordance with job drawings, certified drawings, and all applicable electrical codes. 7. Make sure that the customer’s contractor has verified the proper operation of the pumps, cooling tower fans, and associated auxiliary equipment. This includes ensuring that motors are properly lubricated, have proper electrical supply, and have proper rotation. 8.
2. Direct current (as from a welder) can be passed through the winding. The total current should not exceed approximately 50% of the rated full load current. If the motor has only 3 leads, 2 must be connected together to form one circuit through the winding. In this case, one phase carries the full applied current and each of the others carries half of the applied current. If the motor has 6 leads (3 mains and 3 neutrals), the 3 phases should be connected into one series circuit. 3.
Fig.
Table 7 — Recommended Compressor and External Gear Fastener Tightening Torques FASTENER DIAMETER (in.) UNC 1⁄4 5⁄16 3⁄8 7⁄16 1⁄2 9⁄16 5⁄8 3⁄4 7⁄8 1 11⁄8 11⁄4 13⁄8 11⁄2 13⁄4 2 21⁄4 21⁄2 23⁄4 Check Starter TORQUE* Lb.-Ft. (N • m) Minimum Maximum 7 (9.5) 9 (12.2) 14 (19.0) 17 (23.1) 25 (33.9) 31 (42.0) 40 (54.2) 50 (67.8) 60 (81.4) 75 (101.7) 87 (118.0) 108 (137.0) 120 (162.7) 150 (203.4) 213 (288.8) 266 (360.7) 343 (465.1) 429 (581.7) 515 (698.3) 643 (871.9) 635 (861.1) 793 (1075.3) 896 (1215.0) 1120 (1518.
1. Check that all wiring connections are properly terminated to the starter. 2. Verify that the ground wire to the starter is installed properly and is of sufficient size. 3. Verify that the motors are properly grounded to the starter. 4. Check that all the relays are properly seated in their sockets. 5. Verify that the proper AC input voltage is brought into the starter per the certified drawings. 6. Verify that the initial factory settings (i.e., starting torque, ramp potentiometers, etc.
5. After the last digit is changed, the LID goes to the BUS # parameter. Press the EXIT softkey to leave the screen, record your password change, and return to the SERVICE menu. Modify Minimum and Maximum Load Points (DT1/P1; D T2/P2) If Necessary —These pairs of chiller load points, located on the SERVICE1 table, determine when to limit guide vane travel or to open the hot gas bypass valve when surge prevention is needed. These points should be set based on individual chiller operating conditions.
PERFORM AN AUTOMATED CONTROL TEST — Check the safety controls status by performing an automated controls test. Access the CONTROL TEST table from the SERVICE menu. This table has the following screens: If surge prevention occurs too soon or too late, make the following adjustments: SURGE PREVENTION SURGE PREVENTION OCCURS TOO SOON OCCURS TOO LATE At low loads Increase P1 by Decrease P1 by (,50%) 10 psid (70 kPad) 10 psid (70 kPad) At high loads Increase P2 by Decrease P2 by (.
Table 8 — Control Test Menu Functions TESTS TO BE PERFORMED 1. Automated Tests* See the Pumpout and Refrigerant Transfer Procedures (page 63) and Pumpout System Maintenance sections (page 83) for details on transferring refrigerant, oil specifications, etc. DEVICES TESTED Operates the second through seventh tests 2.
5. Check the main contactor for proper operation. 6. The PIC will activate an alarm for motor amps not sensed. Reset this alarm and continue with the initial start-up. 3. Chiller is charged with refrigerant and all refrigerant and all oil valves are in their proper operating position. 4. Gear oil, compressor oil, and motor bearing oil are at the proper levels in the reservoir sight glasses. 5. Compressor oil reservoir temperature is above 140 F (60 C) or refrigerant temperature plus 50° F (28° C).
Note that each start time an induction motor starts, it is subjected to the full inrush of current along with heating of the stator and rotor windings. Each acceleration and repeated start can produce more heat than is produced and dissipated by the motor under full load. The starting duty for which the motor is designed is shown on a nameplate mounted on the motor. Do not exceed this amount if long motor life is expected.
2. Offset and Angular Alignment — Reverse dial indication or optical methods of alignment (such as lasers) are recommended. A cold alignment and a hot check (with corrections, if necessary) are required. The hub flange OD can be used to mount the alignment equipment and is machined to be concentric to the coupling bore. It can be used as the reference diameter. 3. Final Assembly — The terminology used to identify parts and the order of assembly may differ from one coupling style to another.
3. When a steady motor current value in the desired range is reached, compare the MOTOR RATED LOAD AMPS value on the STATUS01 screen to the actual amps shown on the ammeter on the starter. Adjust the amps value on the STATUS01 screen to match the actual value on the starter ammeter, if there is a difference. Highlight the amps value; then, press the SELECT softkey. Press the INCREASE or DECREASE softkey to bring the value to that indicated on the ammeter. Press ENTER when the values are equal. 4.
2. On the LID default screen, press the LOCAL or CCN softkey to start the system. If the schedule indicates that the current time and date have been established as a run time and date (a condition referred to as ‘‘occupied’’) and the 3- and 15-minute start timers have expired, the start sequence will start. Follow the procedure described in the Start-Up/Shutdown/Recycle Sequence section, page 43.
guide vane control and close the guide vanes, if necessary. For descriptions of capacity overrides and set points, see the Controls section. NOTE: If the chiller fails to stop, in addition to action that the PIC initiates, the operator should close the guide vanes by overriding the guide vane target to zero (to reduce chiller load) and then by opening the main disconnect. Do not attempt to stop the chiller by opening an isolating knife switch. High intensity arcing may occur.
REFRIGERATION LOG CARRIER 17EX EXTERNALLY GEARED CENTRIFUGAL CHILLER Plant Chiller Serial No. Chiller Model No. Refrigerant Type REC. 1 REC. 2 REC. 3 REC. 4 REC. 5 REC. 6 REC. 7 REC. 8 REC.
NOTE: Location of pumpout compressor may vary depending on machine arrangement. 9 10 DRIVE END COOLER ISOLATION 7 VALVE 11 CHILLER CHARGER VALVE REAR VIEW COMPRESSOR END Fig.
COMPRESSOR MOTOR Hz Ph Volts Max. RLA 50 3 3 3 3 3 400 298 230 460 375 4.7 10.9 9.5 4.7 3.8 60 LEGEND — Compressor Motor Circuit Disconnect 2 — Control Circuit Disconnect C — Contactor OL — Compressor Overload RLA — Rated Load Amps T’stat — Internal Thermostat 1 Compressor Terminal Contactor Terminal Overload Terminal Pumpout Unit Terminal Fig. 33 — Pumpout Unit Wiring Schematic 1. Isolate and push refrigerant into the economizer/storage vessel with the pumpout compressor. a.
10. Continue to use the TERMINATE/LOCKOUT function on the LID to turn off water pumps and enable the compressor to operate. Transferring Refrigerant into the Cooler/ Condenser/Compressor Section — These steps describe how to transfer refrigerant from the economizer/ storage vessel into the cooler/condenser/compressor section. This is normally done to prepare for service work on the economizer/storage vessel. 1. Isolate and push refrigerant into the cooler/condenser/ compressor section: a.
Refrigerant HFC-134a MUST NOT be mixed with air or oxygen and pressurized for leak testing. In general, this refrigerant should not be allowed to be present with high concentrations of air or oxygen above atmospheric pressures, because the mixture can undergo combustion. REFRIGERANT TRACER — Use an environmentally acceptable refrigerant as a tracer for leak test procedures.
NOTE: Adjust shims (Item 33) to maintain .525 ± .01 in. (13.3 ± .3 mm) dimension with shaft thrust toward drive and check carbon for +.06 minimum travel. LEGEND 1 2A 2B 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — Lubricating Tube O-Ring O-Ring Seal Housing Coupling Guard Mounting Ring Plain 1⁄2-in.
3. Place the diaphragm (Item 25) over the inner seal retainer (Item 28). With the best lapped sealing face of the carbon away from the diaphragm and the notch for the key centered between two of the bolt holes in the diaphragm, gently push the inner carbon ring (Item 26) into the inner carbon guide ring until it is tight against the diaphragm. Make sure that the diaphragm is not wrinkled or folded between the carbon and the retainer. Place the spring (Item 27) over the back of the guide ring.
Low Speed Coupling Alignment 1. Move the motor with the coupling attached into alignment with the gear coupling. The motor must be in its mechanical center and the gear must be centered between the thrust collars when determining the motor position relative to the gear. Adjust the jackscrews to reach close alignment. Follow the procedure outlined in the Correcting Angular Misalignment and Correcting Parallel Misalignment sections. 2. Maintain the exact hub-to-hub distance as specified in Fig. 30. 3.
2. Parallel in elevation — This alignment is also made with shims, but it cannot be made while there is angular misalignment in elevation. 3. Angular in plan — This position can easily be lost if placed ahead of the two adjustments in elevation. 4. Parallel in plan — This adjustment cannot be made while there is still angular misalignment in plan and can easily be lost if elevation adjustments are made. Fig.
Obtain: D — coupling face diameter in inches (or indicator button circle) L — distance between front and rear holddown bolts (inches) M — net misalignment in inches And: Divide L, the bolt distance, by D, the coupling diameter. Multiply the result by M, the net misalignment. If the larger opening remains the same but changes from side to side, the shafts are in perfect alignment. The change in opening is due entirely to coupling runout, as above, or to a burr or other damage to the coupling face.
Measurement — With dial set at zero in the top position, rotate the shaft to which the indicator is attached 180 degrees. If the dial reading is plus, the shaft on which the button rests is low. If the reading is minus, the shaft on which the button rests is high. Never accept a single reading. Look for repeatability. Rotate the shaft several times to see if the reading remains the same. It is good practice to reverse the procedure and read from zero at the bottom.
Fig. 43 — Alignment Check — Assembled Coupling 5. Recheck the alignment per steps 1 through 4 until it remains within the specified tolerances. Be sure that coupling guards are replaced after these checks. DOWELING Techniques — After a hot alignment check has been completed, the compressor, gear and drive must be doweled to their sole plates. Doweling permits exact repositioning of components if they have to be moved. 1. Doweling must be completed with equipment at maximum operating temperature (full load).
Check the oil level in the motor bearings and observe the level each week. If additional oil is required, add oil as described in the Oil Changes section on page 77. The added oil must meet Carrier specifications. (See Table 11.) Any additional oil added or removed should be logged by noting the amount and date. WEEKLY MAINTENANCE Check the Lubrication System — Mark the oil level on the compressor reservoir sight glass, and observe the level each week while the chiller is shut down.
7. Replace the drain fitting, using standard practices to ensure a leak-tight joint. 8. Open the isolation valves. 9. Connect power to the oil heater, if equipped, and oil pump. Operate the oil pump for 2 minutes. Add oil, if required, to keep the level up in the sight glass. Oil should be visible in the reservoir sight glass during all operating and shutdown conditions. 5. Open the drain located on the shell of the cooler/filter. Run a hose from the drain to a bucket to catch the oil. 6.
The lubricant should be drained while the gear is at operating temperature. The gear drive should be cleaned with a flushing oil. Used lubricant and flushing oil should be completely removed from the system to avoid contaminating new oil. To change the oil in the external gear: 1. Make sure that the compressor is off and the disconnect for the compressor is open. 2. Disconnect the power to the oil heater, if equipped, and the oil pump. 3. Open the drain located on the shell of the cooler/filter.
CLEANLINESS — On open ventilated motors, screens and louvers over the inlet air openings should not be allowed to accumulate any build-up of dirt, lint, etc., that could restrict free air movement. Screens and louvers should never be cleaned or disturbed while the motor is in operation because any dislodged dirt or debris can be drawn directly into the motor.
7. When removing the labyrinth seals, note the position of the anti-rotation button located on the inside of the top half of the seal. Pull up the garter spring surrounding the floating labyrinth seal and carefully slip out the top half. Rotate the garter spring until the lock is visible. Twist counterclockwise to disengage the lock, remove the garter spring, then rotate the lower half of the seal out of the groove in the bearing housing while noting the orientation of the oil drain holes.
provide proper protection while the motor is being stored. The motor should be stored under cover in a clean, dry location and should be protected from rapid temperature changes. Since moisture can be very detrimental to electrical components, the motor temperature should be maintained at approximately 5° F (3° C) above the dew point temperature by providing either external or internal heat.
Fill the gear drive to the recommended oil level with heated Shell VSI grade 68 oil or its equivalent, heated between 110 and 120 F (43 and 49 C). Do not overfill. Immediately close the openings to keep the vapors in the housing. Inspect the unit every 30 days and spray or add rust inhibitor suitable for anticipated storage conditions, as required. Drain and replace the oil with the recommended oil type prior to start-up. • Remove the breather and replace it with a pipe plug.
4. Stop the compressor and isolate the system by closing the discharge service valve. 5. Slowly remove the oil return line connection. Add oil as required. 6. Replace the connection and reopen the compressor service valves. PUMPOUT SAFETY CONTROL SETTINGS (Fig. 47) — The pumpout system high-pressure switch should open at 161 psig (1110 kPa) and close at 130 psig (896 kPa). Check the switch setting by operating the pumpout compressor and slowly throttling the pumpout condenser water.
See Fig. 6 for sensor locations. The sensors are immersed directly in the refrigerant or water circuits. The wiring at each sensor is easily disconnected by unlatching the connector. These connectors allow only one-way connection to the sensor. When installing a new sensor, apply a pipe sealant or thread sealant to the sensor threads. DUAL TEMPERATURE SENSORS — There are 2 sensing elements on each of the bearing temperature sensors for servicing convenience.
TROUBLESHOOTING TRANSDUCERS — When troubleshooting transducers, keep the negative lead of your voltohmmeter on terminal U4 of the power supply (or terminal 4 on power supplies without the comparator circuit). Voltage VO1 = (VH1-VL1) + .467 ± .1 V For all PIC transducers: Measured pressure = (507.97 × (Vout/Vin)) − 47.33 Vout = transducer output ref. to neg. terminal (4 or U4) i.e., VH1 to U4 or VL1 to U4 Vin = power supply output, i.e., U3 to U4 4.
LEGEND FOR TABLE 12, A - N 1CR AUX CA P CCN CDFL CHIL S S CHW CMPD CRP ERT EVFL GV TRG LED LID MTRB MTRW — — — — — — — — — — — — — — — Compressor Start Contact Compressor Current Carrier Comfort Network Condenser Water Flow Chiller Start/Stop Chilled Water Discharge Temperature Condenser Pressure Evaporator Refrigerant Temperature Chilled Water Flow Target Guide Vane Position Light-Emitting Diode Local Interface Device Bearing Temperature Motor Winding Temperature OILPD OILT PIC PRS TRIP PSIO RLA RUN AUX
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) D. PRE-START ALERTS: These alerts only delay start-up. When alert is corrected, the start-up will continue. No reset is necessary. PRIMARY MESSAGE PRESTART ALERT SECONDARY MESSAGE STARTS LIMIT EXCEEDED ALARM MESSAGE/PRIMARY CAUSE STARTS EXCESSIVE Compressor Starts (8 in 12 hours) MTRW [VALUE] exceeded limit of [LIMIT]*. Check motor temperature.
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) G. START-UP FAILURES: This is an alarm condition. A manual reset is required to clear. PRIMARY MESSAGE FAILURE TO START SECONDARY MESSAGE LOW OIL PRESSURE ALARM MESSAGE/PRIMARY CAUSE OILPD [VALUE] exceeded limit of [LIMIT]*. Check oil pump system. FAILURE TO START OIL PRESS SENSOR FAULT OILPD [VALUE] exceeded limit of [LIMIT]*. Check oil pressure sensor.
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) I.
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) L. CHILLER PROTECT LIMIT FAULTS Excessive numbers of the same fault can lead to severe chiller damage. Seek service expertise. PRIMARY MESSAGE PROTECTIVE LIMIT SECONDARY MESSAGE HIGH DISCHARGE TEMP ALARM MESSAGE/PRIMARY CAUSE CMPD [VALUE] exceeded limit of [LIMIT]*. Check discharge temperature. PROTECTIVE LIMIT LOW REFRIGERANT TEMP ERT [VALUE] exceeded limit of [LIMIT]*.
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) L. CHILLER PROTECT LIMIT FAULTS (cont) Excessive numbers of the same fault can lead to severe chiller damage. Seek service expertise. PRIMARY MESSAGE PROTECTIVE LIMIT SECONDARY MESSAGE TRANSDUCER VOLTAGE FAULT PROTECTIVE LIMIT LOW GEAR OIL PRESSURE PROTECTIVE LIMIT HIGH GEAR OIL TEMP PROTECTIVE LIMIT CCN OVERRIDE STOP ALARM MESSAGE/PRIMARY CAUSE V REF [VALUE] exceeded limit of [LIMIT]*.
Table 12 — LID Primary and Secondary Messages and Custom Alarm/Alert Messages with Troubleshooting Guides (cont) N. OTHER PROBLEMS/MALFUNCTIONS DESCRIPTION/MALFUNCTION Chilled Water/Brine Temperature Too High (Chiller Running) Chilled Water/Brine Temperature Too Low (Chiller Running) Chilled Water Temperature Fluctuates.
Table 13 — External Gear Troubleshooting Guide PROBLEM Excessive Operating Temperature Oil Leakage Gear Wear Bearing Failure Unusual Noise POSSIBLE CAUSE — ITEM NO.s* 1,2,3,4,5,6,7,9,12,18,20,21 1,2,3,4,5,7,9,12,13,18,19,21 1,2,3,4,6,7,8,9,10,11,12,13,14,15,16,18,19,21,22 1,6,7,8,9,10,11,12,15,16,19,20,21 1,2,3,4,6,7,8,9,10,11,12,13,15,16,17,20,21 *See table below for probable cause and suggested remedy. POSSIBLE CAUSE 1. Unit Overload 2. Incorrect Oil Level 3. Wrong Oil Grade 4. Contaminated Oil 5.
Table 14A — Thermistor Temperature (F) vs Resistance/Voltage Drop TEMPERATURE (F) −25.0 −24.0 −23.0 −22.0 −21.0 −20.0 −19.0 −18.0 −17.0 −16.0 −15.0 −14.0 −13.0 −12.0 −11.0 −10.0 −9.0 −8.0 −7.0 −6.0 −5.0 −4.0 −3.0 −2.0 −1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 26.0 27.0 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 41.0 42.0 43.0 44.0 45.0 46.0 47.0 48.0 49.0 50.0 51.0 52.0 53.0 54.0 55.0 56.0 57.0 58.0 59.
Table 14B — Thermistor Temperature (C) vs Resistance/Voltage Drop TEMPERATURE (C) −40 −39 −38 −37 −36 −35 −34 −33 −32 −31 −30 −29 −28 −27 −26 −25 −24 −23 −22 −21 −20 −19 −18 −17 −16 −15 −14 −13 −12 −11 −10 −9 −8 −7 −6 −5 −4 −3 −2 −1 0 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 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 VOLTAGE DROP (V) 4.896 4.889 4.882 4.874 4.866 4.857 4.848 4.838 4.828 4.817 4.806 4.794 4.782 4.769 4.755 4.740 4.725 4.710 4.693 4.676 4.657 4.639 4.
RED LEDs PSIO Module — If the LED is blinking continuously at a 2-second rate, it is indicating proper operation. If it is lit continuously it indicates a problem requiring replacement of the module. Off continuously indicates that the power should be checked. If the red LED blinks 3 times per second, a software error has been discovered and the module must be replaced. If there is no input power, check the fuses and the circuit breaker.
If all modules indicate a communications failure, check the communications plug on the PSIO module for proper seating. Also check the wiring (CCN bus — 1:red, 2:wht, 3:blk; Sensor bus — 1:red, 2:blk, 3:clr/wht). If a good connection is assured and the condition persists, replace the PSIO module. If only one 8-input module, the SMM, or the 4-in/2-out module indicates a communication failure, check the communications plug on that module.
configurations. The inputs monitor the gear oil temperature and pressure. Input AI#2 should be factory-set with the jumper on (T). Inputs AI#3, and AI#4 should be factory set on (V). OUTPUTS — The two analog outputs are each configurable by on-board jumpers as 0 to 10 vdc (maximum current: 10 mA) or 4 to 20 mA (maximum load: 600 ohms) outputs. The outputs control the relay that activates the gear oil pump starter. Outputs AO#1 and AO#2 should be factory set with the jumper on (V).
6. Restore control system power (the LID displays, COMMUNICATION FAILURE at the bottom of the screen). 7. Access the SERVICE menu. Highlight and select the ATTACH TO NETWORK DEVICE screen. Press the ATTACH softkey. (The LID displays, UPLOADING TABLES. PLEASE WAIT; then, COMMUNICATION FAILURE.) Press the EXIT softkey. 8. Turn off control power. 9. Mount the new module in the unit control box using a long-shaft Phillips screwdriver and the screw saved in Step 4 on page 98.
Fig. 56 — Model Number Nomenclature for Compressor Size (See Fig.
Table 17 — Additional Condenser Weights* COMPONENT HEAT EXCHANGER SIZE WATERBOX TYPE NUMBER OF PASSES NIH NIH NIH Marine Marine Marine Marine NIH NIH NIH Marine Marine 1, 3 1, 3 2 1, 3 2 1, 3 2 1 1 2 2 2 45 - 47 CONDENSER 55 - 57 NIH — Nozzle-In-Head DESIGN MAXIMUM WATER PRESSURE psig kPa 150 1034 300 2068 300 2068 150 1034 150 1034 300 2068 300 2068 150 1034 300 2068 300 2068 150 1034 300 2068 ADDITIONAL DRY WEIGHT lb kg 344 156 1652 749 1132 513 1692 767 674 306 2651 1 202 1630 739 † † 1588 720
Table 20A — Total Motor Weight, English (lb) ENCLOSURE TYPE HERTZ 60 Hz Open-Drip Proof (ODP) 50 Hz 60 Hz Weather Protected Type II (WPII) 50Hz Totally Enclosed Water-To-Air Cooled (TEWAC) 60 Hz 50 Hz VOLTAGE 2400 3300 4160 6900 3000 3300 6300 2400 3300 4160 6900 3000 3300 6300 2400 3300 4160 6900 3000 3300 6300 SIZE (HP) FA, FF (1250) 4836 4824 4836 5596 5518 5518 5596 HA, HF (1250) 5146 5134 5146 5906 5828 5828 5906 JA, JF (1250) 5707 5694 5707 6466 6388 6388 6466 FB, FG (1500) 5721 5832 5721 657
Table 21 — Marine Waterbox Cover Weights* HEAT EXCHANGER SIZE 45 - 48 55 - 57 DESIGN MAXIMUM WATER PRESSURE psi kPa 150 1034 300 2068 150 1034 300 2068 COOLER lb kg 2236 1015 3060 1389 — — — — CONDENSER lb kg 1275 579 1660 754 1643 746 2243 1018 *Heat exchangers with marine waterboxes have heavier dry and operating weights than heat exchangers with nozzle-in-head waterboxes.
Table 24 — Auxiliary Systems, Electrical Data AVERAGE kW DESIGN CENTER VOLTAGE SUPPLY V-PH-Hz FLA LRA 0.23 115 115-1-50/60 4.78 21.7 0.50 115 115-1-50/60 4.35 0.40 115 3.50 — Oil Sump Heater 1.00 115 115-1-60 115-1-50 115-1-60 115-1-50 8.70 — Hot Gas* Bypass 0.20 115 115-1-50/60 2.
NOTE: Refer to Table 26 for item number references. Fig.
Table 26 — Compressor Fits and Clearances CLEARANCE ITEM DESCRIPTION Minimum in.
Tabulation — Impeller Clearances (Open-Drive Compressors) COMPRESSOR SIZE SHROUD 3 4 17FX 5 6 DIAM CODE 1 3 5 7 9 1 3 5 7 9 1 3 5 7 9 1 3 5 7 9 8 1-9 9 1-9 DIMENSION* IMPELLER DIAMETER in. 12.00 12.38 12.75 13.25 13.75 12.00 12.38 12.75 13.25 13.75 12.00 12.38 12.75 13.25 13.75 12.00 12.38 12.75 13.25 13.75 13.75† 13.50** 13.75† 13.50** mm 304.8 314.5 323.8 336.6 349.2 304.8 314.5 323.8 336.6 349.2 304.8 314.5 323.8 336.6 349.2 304.8 314.5 323.8 336.6 349.2 349.2† 342.9** 349.2† 342.
LEGEND BRG C CB CH COM COMP’R COND DETR — — — — — — — — Bearing Contactor Circuit Breaker Channel Communications Compressor Condenser Detector DIFF DISCH ENT EVAP EXT G.V. HGBP HTR — — — — — — — — Differential Discharge Entering Evaporator External Guide Vane Hot Gas Bypass Heater INT J K L LD LID LVG M — — — — — — — — Internal Junction Relay Designation Line Terminal Leak Detector Local Interface Device Leaving Motor Fig.
LEGEND PH — Phase PRESS. — Pressure PSIO — Processor/Sensor Input/Output Module R — Terminal Designation SMM — Starter Management Module T — Terminal t* — Thermistor TB — Terminal Block TEMP — Temperature TEWAC — Totally Enclosed Water-to-Air Cooled TG — Terminal Designation TS — Terminal Strip Required Power Wiring Required Control Wiring Options Wiring IMPORTANT: Wiring shown is typical and not intended to show detail for a specific installation. Refer to certified field wiring diagrams. Fig.
CB COMM N.O. N.C. O.L. PR RLA SMM TB — — — — — — — — — LEGEND Circuit Breaker Communications Normally Open Normally Closed Overload Pilot Relay Rated Load Amps Starter Management Module Terminal Block Starter Vendor Supplied Wiring Field Wiring Carrier Factory Wiring NOTE: Voltage to terminals LL1 and LL2 comes from a control transformer in a starter built to Carrier specifications. Do not connect an outside source of control power to the compressor motor starter (terminals LL1 and LL2).
Fig.
LEGEND DP C COMP’R G L LL M OL’s OS — — — — — — Differential Pressure Contactor Compressor Ground Line Terminal Control Power Line Terminal — Motor — Overloads — 3-Phase Current Power Source PR SP — — SW T TB — — — Pilot Relay Open Terminal Designation (Open Space) Switch Terminal Terminal Board Required Power Wiring Required Control Wiring Options Wiring IMPORTANT: Wiring shown is typical and not intended to show detail for a specific installation. Refer to certified field wiring diagrams.
NOTES FOR FIG. 60 I GENERAL 1.0 Starters shall be designed and manufactured in accordance with Carrier Engineering requirement Z-375. 1.1 All field-supplied conductors and devices, field-installation wiring, and termination of conductors and devices must be in compliance with all applicable codes and job specifications. 1.
EQUIP GND HGBP S T1-T4 TS — — — — — — LEGEND Equipment Ground Hot Gas Bypass Switch Power Panel Transformers Terminal Strip Fig.
INDEX Abbreviations, 5 Access the Service Screen, To (Service Operation), 42 Accidental Start-Up, To Prevent, 61 Accuracy, Check Sensor (Checking Temperature Sensors), 84 Adding Refrigerant, 67 Adjusting the Refrigerant Charge, 67 After Extended Shutdown, 63 After Limited Shutdown, 63 After Power Failure, Auto. Restart (Lead/Lag Control), 40 Auto.
INDEX (cont) Control, Auxiliary Compressor Oil Pump, 33 Auxiliary Gear Oil Pump, 33 Capacity, 32 Condenser Pump, 36 Entering Chilled Water, 32 High Discharge Temperature, 35 Ice Build, 40 Lead/Lag, 38 Oil Sump Temperature, 35 Ramp Loading, 33 Control Algorithms Checkout Procedure, 85 Control and Oil Heater Voltage Selector (S1), 16 Control Center, 5 Control Center, Inspect the (Scheduled Maintenance), 76 Control Configuration, Set Up Chiller, 54 Control Modules, 96 Control Settings, Pumpout Safety, 83 Contr
INDEX (cont) Initial Start-Up, Before, 45 Motor, 58 Initiation, Ice Build (Ice Build Control), 40 Input Equipment Service Parameters If Necessary, 55 Input/Output Module (PSIO), Processor/Sensor, 16 Input Service Configurations, 54 Input the Design Set Points, 54 Input the Local Occupied Schedule (OCCPC01S), 54 Input Time and Date, 55 Inputs, (4-In/2-Out Module), 98 (Processor/Sensor Input/Output Module), 97 (Starter Management Module), 97 Spare Safety, 36 Inspect Refrigerant Float System (Scheduled Mainten
INDEX (cont) OCCPC01S, Input the Local Occupied Schedule, 54 Occupancy Schedule, 32 Occupied Schedule (OCCPC01S), Input the Local, 54 Oil, Compressor, 77 External Gear, 77 Oil Auxiliary Relay (4C), 16 Oil Changes (Scheduled Maintenance), 77 Oil Charge, Compressor, 54 Oil Charge, Optional Pumpout Compressor, 83 Oil Circuit Valves, Open, 46 Oil Control, Shaft Seal, 33 Oil Cooler, 36 Oil Cooling Cycle, 8 Oil Differential Pressure/Power Supply Module, 16 Oil Differential Pressure/Power Supply Module Calibration
INDEX (cont) Refrigerant Float System, Inspect (Scheduled Maintenance), 78 Refrigerant Leak Testing, 67 Refrigerant Pressures, Reading, 63 Refrigerant Properties, 67 Refrigerant Tracer (Test After Service, Repair, or Major Leak), 68 Refrigerant Tracer, 46 Refrigerant Transfer Procedures, Pumpout and, 63 Refrigeration Cycle, 5 Refrigeration Log, 63 Relay (3C) (Optional), Hot Gas Bypass Contactor, 16 Relay (4C), Oil Auxiliary, 16 Relay Board, Six-Pack, 16 Relay, Tower Fan, 36 Relief Devices, Check, 50 Relief
INDEX (cont) Test, Control (Troubleshooting Guide), 85 Perform and Automated Control, 56 Standing Vacuum, 49 Testing, Refrigerant Leak, 67 This Manual (Instruct the Operator), 62 Threshold, Automatic Soft Stop Amps, 44 Tighten All Gasketed Joints and Guide Vane Shaft Packing, 46 Tightness, Check Chiller, 46 Time and Date, Input, 55 Time Schedule Operation, To View or Change, 18 Timers, Chiller, 32 To Prevent Accidental Start-Up, 61 To View and Change Set Points, 22 To View or Change Point Status, 17 To View
