Emerson E2 Manuale dell'Operatore

1© 2010 Emerson Climate TechnologiesPrinted in the U.S.A.AEApplication EngineeringBULLETINThe Intelligent Store Discus™ product line has recently bee

10Grommets are included to minimize the chance ofchaffing where the cable passes through sheet metalopenings.Refer to figure 2.11 for details regardin

113. Intelligent Store™ Discus®Commissioning ProcedureImportant Note: The following commissioninginstructions (sections 3.0 through 3.9) pertain toE2

123.0 Network SetupBegin the process by logging on. To do this press theLog In/Out button on the E2. When prompted, enter“USER” in the username fiel

13Figure 3.4 Controller Setup Screen3. Verify that the number of ISD devices listed on theController Setup Screen matches the number ofdevices connect

14This will open the suction group setup screen asshown below in figure 3.6:Figure 3.6 Suction Group Setup ScreenFrom this screen you can edit the nam

15When these steps have been completed, the compressor setup screen should look like figure 3.7below:3.3 Configuring AssociationsThe next step links t

16Figure 3.11 ISD Summary ScreenSelect the compressor that you wish to rename andPress F5 (Setup). The ISD Compressor Setup Screenshould be displayed

17compressor OFF. In the case where the module is setfor failsafe OFF the compressor will not run until communications have been re-established with t

183.10 Intelligent Store™ Discus®Commissioning Procedure for E2Firmware Revisions 2.07 through 2.20Each Intelligent Store™ Discus® Compressor module(r

19Begin the process by logging on. To do this press theLog In/Out button on the E2. When prompted, enter“USER” in the username field and “PASS” in the

Emerson Climate TechnologiesIntelligent Store™ Discus®Operator’s ManualAE8-1337 R1

Figure 3.20 CST Network Screen (with modulespresent)Figure 3.21 Sample Rack with Intelligent Store™Discus® Compressors Note: Immediately following th

21Sample Rack with Intelligent Store™ Discus® Compressors Figure 3.24 CST Summary Screen (After Renaming)3.15 Suction Pressure MappingTo serve as a c

223.16 Remote ResetIn the event of an oil pressure or discharge tempera-ture lockout a manual reset is required to restart thecompressor. This can be

23Figure 3.29 Suction Group Setup ScreenFrom this screen you can edit the name of the suctiongroup, select the control type, and enter the numberof st

24Sample Rack with Intelligent Store™ Discus® Compressors- 25° Suction - 15° Suction4DL3A150L-TSK04I35625R3DRHA100E-TFD04I00300R4DS3A220E-TSK04I35631R

25Sample Rack with Intelligent Store™ Discus®Compressors Figure 3.31 Suction Group Setup Screen (CompOuts)3.19 Welded ContactorThis protection featur

26Figure 3.33 Suction Group Setup ScreenThe E2 will default to a (Board / Point) application.Before proofing can be programmed the E2 must bechanged t

• Under normal operating conditions thecode will switch between InjectionMode (2) and Normal (1) when notusing demand cooling. 3 Low Suction Pressure

28compressor has been off for several seconds will not activate this code.9 Module Supply Voltage Trip - If the modulesupply voltage drops below 170 v

294.2 Status Code Table4.3 Startup CodesUpon initial startup or immediately following a manualreset the Intelligent Store™ Discus® module will dis-pla

3Table of Contents 1 Overview of Emerson Climate Technologies Intelligent Store™ Discus®51.1 Functionality 51.1.1 Diagnostics 51.1.2 Communications 51

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35Figure 4.1 Measuring ResistanceAcross Current Relay (the valueshould be less than 3 Ohms with thecompressor running)AE8-1337 R1

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44.3 Startup Codes 294.4 Status Code Troubleshooting 294.4.1 Normal - Off 304.4.2 Normal - Running 314.4.3 Demand Cooling Injecting 324.4.4 Low Suctio

40Accessory FuseFigure 4.2 Accessory Fuse LocationAE8-1337 R1

41Figure 4.3 Communications WiringAE8-1337 R1

42Flashing dLoss of Communication Mode(continued)Communication Troubleshooting• DC Voltage 2.3v - 2.6v (all devices must be connected to the communica

43Determine ReasonEinstein™ SystemOverride Set to“On”Correct Reasonand Set Einstein™System Overrideto “Off”AE8-1337 R1

44Figure 4.4 3D Voltage SensorConnectionsFigure 4.5 4D Voltage SensorConnectionsAE8-1337 R1

45Contactor FuseFigure 4.6 Contactor FuseLocationAE8-1337 R1

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485.1 Demand Cooling Service ProceduresThe demand cooling valve injects liquid refrigerantinto the suction manifold to keep the discharge gastemperatu

49Intelligent Store™ Discus® Compressors are lowerthan for standard demand cooling compressors. Thisis to compensate for the probe location used on th

51. Overview of Emerson ClimateTechnologies Intelligent Store™Discus® Compressor The Intelligent Store™ Discus® product line is now available on 2D, 3

505.1.3 Coil Inspection and Replacement (2D / 3D)Refer to figure 5.1 for the location of the injection coil.The coil may be removed by unplugging the

51Note: There are no unique injection valve service procedures for the 4D Intelligent Store™ com-pressor. Use conventional 4D valve change-out procedu

526. Lower the side box to provide wrench clearance tothe injection valve bolt.7. Install a new valve, using new gaskets and torqueto 25 - 30 ft-lb. N

531. Turn off power to the compressor, crank case heater and module.*2. Isolate the compressor and evacuate per accept-ed industry practice.3. Inside

548. Unscrew the high and low pressure cutout switch-es.9. Lift the demand cooling coil off of the injectionvalve (if present).10. Unplug the oil pump

555.3 Module Replacement for 2D / 3DRefer to section 5.6.1, “Determine the ReplacementModule Part Number”. Note that the failed moduleshould be return

56switch with a Schraeder depressor (defla-tor). Refer to the parts list in Appendix C.• Connect the blue “LPCO” leads to the lowpressure switch. Veri

8. Installation of a new front box will be the reverseof these steps.9. If you are replacing a module that has only onefuse in the side, or perhaps no

587. Procedures to remove the head are the same asfor any other Discus® compressor.8. Installation of the module will follow the removalsteps in rever

595.6 Replacement Module Information5.6.1 Determine the Replacement ModulePart NumberWhen ordering a replacement module (front box) theaddress (node n

6tions can be a powerful tool for diagnosing systemproblems.The fault history and the record of run cycles maintained in the Intelligent Store™ Discus

60either a compressor or module is replaced. In this waya record can be maintained and the user will be ableto assess the true history of the compress

61A-1 Wiring Figure A.1 Wiring Diagram of Module, Harness and Deutsch Plugs in Terminal BoxFigure A.2 Low Voltage Plug on 4D Compressors: Pins 1, 2,

62A.2 FusingView From Side BoxView of Terminal BoxFigure 6.1Figure 6.3In-Line Retrofit Contactor Coil FuseFigure 6.2All service modules have two fuses

63(1/2 amp) for the accessory coils, and one fuse(2 amp) for the contactor coil (refer to figure 6.1).Always use a fast-blow fuse for replacement.When

64Appendix C Aftermarket PartsService # Description962-0902-00 Emerson Climate Technologies Intelligent Store™ Discus® Side Box. Includes side box and

65905-0911-00 Electrical Terminal Box Cover. Cover Only. For usage with specific Copeland® Brand 3D Discus®Compressors with Emerson Climate Technologi

66985-0102-10 Emerson Climate Technologies Intelligent Store™ Discus® Module- Node 10. For usage on specificCopeland® Brand 2D, 3D and 4D Discus® Comp

67Appendix D3D Intelligent Store™ Discus® Reference DrawingAE8-1337 R1

682D Intelligent Store™ Discus® Reference DrawingAE8-1337 R1

694D Intelligent Store™ Discus® Reference Drawing AE8-1337 R1

72. Installation InstructionsEmerson Climate Technologies, Inc. requires that allcustomers review the recommended guidelines in thepublished Applicati

70Appendix ETechnical SupportFor technical support or assistance in resolving issues with the Intelligent Store™ Discus® Compressor Moduleor with the

1675 West Campbell RoadSidney, OH 45365(937) 498-3011EmersonClimate.com2006CC-15 R2 (10/06) Emerson®, Emerson. Consider It Solved™, Emerson Climate Te

82.2.1 Current Relay Connections• 2D and 3D compressors have a current relay inthe terminal box (refer to figure 2.1 above). Thecurrent relay is used

9designed for commercial HVAC and Refrigerationapplications. RS-485 hardware connections are usedat the network terminations and at each node (compres