Carrier 17EX specifications Check Starter, Mechanical Starters, SOLID-STATE Starters

Page 53

Table 7 Ð Recommended Compressor and External Gear Fastener Tightening Torques

FASTENER

 

TORQUE*

 

DIAMETER (in.)

 

Lb.-Ft. (N · m)

 

UNC

Minimum

Maximum

1¤4

7

(9.5)

9

(12.2)

5¤16

14

(19.0)

17

(23.1)

3¤8

25

(33.9)

31

(42.0)

7¤16

40

(54.2)

50

(67.8)

1¤2

60

(81.4)

75

(101.7)

9¤16

87

(118.0)

108

(137.0)

5¤8

120

(162.7)

150

(203.4)

3¤4

213

(288.8)

266

(360.7)

7¤8

343

(465.1)

429

(581.7)

1

515

(698.3)

643

(871.9)

11¤8

635

(861.1)

793

(1075.3)

11¤4

896

(1215.0)

1120

(1518.7)

13¤8

1175

(1593.3)

1468

(1990.6)

11¤2

1560

(2115.4)

1950

(2644.2)

13¤4

1828

(2478.8)

2286

(3099.8)

2

2750

(3729.0)

3437

(4660.6)

21¤4

4022

(5453.8)

5027

(6816.6)

21¤2

5500

(7458.6)

6875

(9322.5)

23¤4

7456

(10,110.3)

9323

(12,642.0)

*Dry fastener.

NOTE: The torque values listed are to be used for end covers, seal cages, shaft guards, inspection covers, and housing split line bolts, unless otherwise speci®ed on the drawing or assembly instructions.

Carrier Comfort Network Interface Ð The Carrier Comfort Network (CCN) communication bus wiring is sup- plied and installed by the electrical contractor. It consists of shielded, 3-conductor cable with drain wire.

The system elements are connected to the communication bus in a daisy chain arrangement. The positive pin of each system element communication connector must be wired to the positive pins of the system element on either side of it; the negative pins must be wired to the negative pins; the sig- nal ground pins must be wired to signal ground pins.

To attach the CCN communication bus wiring, refer to the certi®ed drawings and wiring diagrams. The wire is in- serted into the CCN communications plug (COMM1) on the PSIO module. This plug also is referred to as J5.

NOTE: Conductors and drain wire must be 20 AWG (Ameri- can Wire Gage) minimum stranded, tinned copper. Indi- vidual conductors must be insulated with PVC, PVC/nylon, vinyl, Te¯on, or polyethylene. An aluminum/polyester 100% foil shield and an outer jacket of PVC, PVC/nylon, chrome vinyl, or Te¯on with a minimum operating temperature range of ±20 C to 60 C is required. See table below for cables that meet the requirements.

MANUFACTURER

CABLE NO.

Alpha

2413 or 5463

American

A22503

Belden

8772

Columbia

02525

 

 

When connecting the CCN communication bus to a sys- tem element, a color code system for the entire network is recommended to simplify installation and checkout. The fol- lowing color code is recommended:

SIGNAL

CCN BUS CONDUCTOR

PSIO MODULE

TYPE

INSULATION COLOR

COMM 1 PLUG (J5) PIN NO.

+

RED

1

Ground

WHITE

2

±

BLACK

3

Check Starter

BE AWARE that certain automatic start arrangements can engage the starter. Open the disconnect ahead of the starter in addition to shutting off the chiller and pump.

Use the instruction and service manual supplied by the starter manufacturer to verify that the starter has been in- stalled correctly.

The main disconnect on the starter front panel may not deenergize all internal circuits. Open all internal and re- mote disconnects before servicing the starter.

Whenever a starter safety trip device activates, wait at least 30 seconds before resetting the safety. The microprocessor maintains its output to the 1CR relay for 10 seconds after starter safety shutdown to determine the fault mode of failure.

MECHANICAL STARTERS

1.Check all ®eld wiring connections for tightness, clear- ance from moving parts, and correct connection.

2.Check the contactor(s) to be sure they move freely. Check the mechanical interlock between contactors to ensure that the 1S and 2M contactors cannot be closed at the same time. Check all other electro-mechanical devices, such as relays and timers, for free movement. If the devices do not move freely, contact the starter manufacturer for re- placement components.

3.Some dashpot-type magnetic overload relays must be filled with oil at the jobsite. If the starter is equipped with de- vices of this type, remove the ¯uid cups from these mag- netic overload relays. Add dashpot oil to the cups per in- structions supplied with the starter. The oil is usually shipped in a small container attached to the starter frame near the relays. Use only dashpot oil supplied with the starter. Do not substitute.

Factory-®lled dashpot overload relays need no oil at start- up, and solid-state overload relays do not have oil.

4.Reapply starter control power (not main chiller power) to check the electrical functions. When using a reduced- voltage starter (such as a wye-delta starter) check the tran- sition timer for proper setting. The factory setting is 30 seconds (±5 seconds), timed closing. The timer is ad- justable in a range between 0 and 60 seconds, and set- tings other than the nominal 30 seconds may be chosen as needed (typically 20 to 30 seconds).

When the timer has been set, check that the starter (with relay 1CR closed) goes through a complete and proper

start cycle.

SOLID-STATE STARTERS

The solid-state starter is at line voltage when AC power is connected. Pressing the Stop button does not remove voltage. Use caution when adjusting the potentiometers on the equipment.

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Contents Safety Considerations Start-Up, Operation, and Maintenance InstructionsContents OCCPC01S Input Service Congurations Piping Check Relief Devices Inspect WiringCoupling Maintenance Motor Maintenance Inspect Water PipingContents 17EX Chiller Familiarization IntroductionAbbreviations Certified PerformanceTypical 17EX Chiller Components Lubrication Cycle OIL Cooling CycleRefrigeration, Cycle Starters17EX Compressor Lubrication Cycle Denitions ControlsMajor PIC Components Panel Locations Temperature Sensors See Fig Pressure TransducersPIC Component Panel Location Processor Sensor Input/Output Module Control Center17EX Controls and Sensor Locations Psio LIDPIC Tewac Equip GND ÐGRD General LID Operation and Menus FigPROCESSOR/SENSOR INPUT/OUTPUT Module Psio LID Service Screen Override Operations YES or no , on or OFF , etc. to select the desired state17EX LID Menu Structure Default ScreenAlarm History Service TableEquipment Configuration Control TestCarrier Comfort Network CCNHgbp Ð Hot Gas Bypass LIDChwr SetpointChws HgbpLID Display Data Description Range Units Reference Point Name Alarm HistoryExample 1 Ð STATUS01 Display Screen Menu Status SelectMenu Status Example 2 Ð STATUS02 Display ScreenExample 3 Ð STATUS03 Display Screen Menu Example 4 Ð STATUS04 Display ScreenExample 5 Ð Setpoint Display Screen ICE Build Termination Example 6 Ð Configuration Config Display ScreenECW Control Option LAG =2, Standby =3 Example 7 Ð LEAD/LAG Configuration Display ScreenExample 8 Ð SERVICE1 Display Screen Spare Alert Enable Example 9 Ð SERVICE2 Display ScreenExample 10 Ð SERVICE3 Display Screen Menu ServiceExample 12 Ð Maintenance MAINT02 Display Screen Example 11 Ð Maintenance MAINT01 Display ScreenDischarge Temperature Bearing TemperatureDescription RANGE/STATUS Units Reference Point Name Example 13 Ð Maintenance MAINT03 Display ScreenExample 14 Ð Maintenance MAINT04 Display Screen PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page ECW Cent Capacity ICE Build Setpoint Example of Attach to Network Device Screen Example of Holiday Period Screen To Access the Service ScreensRecycle Sequence Fig START-UP/SHUTDOWNPage Job Data Required Before Initial START-UPEquipment Required MotorPage 17EX Leak Test Procedures Ð HFC-134a Pressure Ð Temperature C Ð HFC-134a Pressure Ð Temperature FTemperature F Temperature CDehydration Cold Trap 900 500 901 7000 1000 7001-14500 2500 Inspect WiringCheck Optional Pumpout Compressor Water Pip Recommended Motor Fastener Tightening Torques External Gear Pre-Start ChecksExternal Gear Lubrication System SOLID-STATE Starters Check StarterMechanical Starters Input the Local Occupied Schedule OCCPC01S Set Up Chiller Control CongurationInput the Design Set Points Ð To modify the set T1/P1 Full Load Points T2/P2 Change the LID Configuration if NecessarySurge Limiting or 50% Load Surge Prevention Occurs TOO Soon Occurs TOO LateIncrease P1 by Decrease P1 by Initial START-UP Charge Refrigerant into ChillerControl Test Menu Functions Tests to be Devices Tested PerformedInitial Motor START-UP Dry Run to Test Start-Up SequenceCheck Motor Rotation Page Flange Nut Tightening Torques Low Speed Couplings Only Check Oil Pressure and Compressor Stop Calibrate Motor Current Demand SettingTo Prevent Accidental Start-Up Ð The PIC can be General RecommendationsOperator Duties Operating InstructionsStarting the Chiller Stopping the ChillerOperating the Optional Pumpout Compressor Pumpout and Refrigerant Transfer ProceduresPlant Chiller Serial No Chiller Model No Refrigerant Type Rear View Valve Condition RLAReturn Chiller to Normal Operating Conditions General MaintenanceChecking Guide Vane Linkage Ð Refer to Fig Contact Seal Maintenance Refer to ÐContact Seal Page Checking Preliminary Alignment Chiller AlignmentMeasuring Angular Misalignment Elevation Alignment Formula HOT Alignment Check Adjusting Angular Misalignment in PlanDoweling Correcting Parallel MisalignmentScheduled Maintenance Weekly MaintenanceCheck Safety and Operating Controls Monthly Changing the Oil FiltersPumpout Compressor OIL17EX Chiller Oil Specications Typical Float Valve Arrangement Sleeve Bearings Page Motor Riggings Inspect the Heat Exchanger Tubes Controls for Optional Pumpout Compressor Troubleshooting GuidePage MAINT02 MAINT01MAINT03 MAINT04Oilpd 1CR AUXOilt PICAutorestart in Progress Starts Limit ExceededOperation FaultPotential FREEZE-UP Failure to StopRunning Ð Demand Limited Running Ð Temp ControlChiller Protect Limit Faults LOW OIL Pressure Sensor Fault AlertAlert Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY Problem External Gear Troubleshooting GuidePossible Cause Ð Item NO.s Possible Cause ActionTemperature Voltage Resistance Drop Ð Thermistor Temperature F vs Resistance/Voltage DropTemperature Voltage Resistance Drop Ð Thermistor Temperature C vs Resistance/Voltage DropControl Modules Module SwitchModule Address Input Options ModuleGRD Processor/Sensor Input/Output Module Psio FigStarter Management Module SMM Fig Switch Setting Options Module Installation of NEW Psio ModuleFour-In/Two-Out Module Fig Options Module4-In/2-Out Module Physical Data and Wiring SchematicsWeight Vessel SIZE² Additional Cooler WeightsCondenser Total Weight Condenser Charge 100Compressor Weight and Elbow Weight Additional Condenser WeightsDrive Component Weights 101102 Ð Total Motor Weight, English lbÐ Total Motor Weight, SI kg NIH Waterbox Cover Weights Marine Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103104 Auxiliary Systems, Electrical DataRelief Valve Locations and Data 105 Compressor Fits and ClearancesMeasure 106Clearance Type Description 17FX Tabulation Ð Impeller Clearances Open-Drive Compressors107 108 Temp 109Press Tewac110 111 112 General 113GND Ð Ground 114T1-T4 Terminal StripIndex Index Index Index Index Copyright 1997 Carrier Corporation

17EX specifications

The Carrier 17EX is recognized as an innovative air conditioning solution that combines efficiency with advanced technology. This model is designed to meet the increasing demands of residential and commercial cooling needs while maintaining environmental consciousness.

One of the standout features of the Carrier 17EX is its impressive Seasonal Energy Efficiency Ratio (SEER) rating. With a SEER rating that often exceeds 17, this unit ensures optimized energy consumption, significantly lowering operational costs for users. The incorporation of advanced compressor technology allows the system to adjust its cooling output based on the specific needs of the environment, thus providing both comfort and energy savings.

The Carrier 17EX utilizes a variable-speed inverter-driven compressor that enhances its performance and adaptability. This technology allows the air conditioning unit to operate at different speeds, intelligently adjusting to changing load conditions. As a result, the system runs more efficiently and quietly, providing a more consistent comfort level without the abrupt temperature swings associated with traditional units.

In addition to efficiency, the Carrier 17EX also prioritizes reliability and durability. The unit comes with a robust cabinet that protects the components from weather elements, ensuring longevity and consistent performance. The innovative design integrates a corrosion-resistant finish and robust insulation, which further enhances the unit's resilience in various environmental conditions.

For users concerned about indoor air quality, the Carrier 17EX includes advanced filtration systems designed to capture allergens and airborne particles. This feature is particularly beneficial for individuals with respiratory issues, ensuring that the air circulated within the space is clean and healthy.

Moreover, the Carrier 17EX is equipped with smart technology capabilities, allowing users to control their systems remotely through smartphones or other smart devices. This connectivity not only provides convenience but also empowers homeowners to optimize their energy use by adjusting settings on the fly, ensuring efficient operation even when they are away from home.

Overall, the Carrier 17EX stands out in the marketplace for its exceptional energy efficiency, advanced technology, and commitment to providing reliable and effective cooling solutions. Its combination of modern features makes it a preferred choice for those looking to enhance comfort while being mindful of energy consumption and environmental impact.
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