RTHD and RTAC - Trane

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CH530 OverviewCH530 Overview EXV stepper driver liquid level sensor input inverter interface pressure transducer The following is a graphic example of the CH530 architecture. Figure 1. CH530 6 RLC-SVX05A-EN
IPC Overview and Troubleshooting The CH530 platform provides a highly modular approach for accommodating the inputs and outputs to control a chiller. The CH530 platform includes discrete devices for each input and output point on the system. For example, the EXV includes the electronics to drive its motor contained within the motor housing. The liquid level sensor includes the electronics necessary to read the float level. Each temperature sensor includes the electronics to measure the thermistor value. The CH530 platform is very generic to varies chiller sizes or model applications. A four compressor design does not require a different module design than a two compressor design, nor did the two compressor design take on un-used components. An additional benefit to the LLID (low level intelligent device) approach is that parts stocking is greatly simplified. LLIDs of each type are not dedicated to a particular chiller design but can be applied individually across all sizes or models. In the typical installation, there are two sets of devices. One set of devices is installed in a control panel. This first set includes power supplies, devices that require customer wiring, and the main processor. Devices in the second set are installed at points of use around the unit and wired by stubs to a main trunk (IPC bus). The DynaView or EzView provides the user interface and the system main processor. The main processor is the master of the chiller by collecting data, status, and diagnostic information and communicating commands to the other modules (starter, purge) and the LLID bus. The main processor also serves as the bus manager. Functions of the bus manager include timing out communication failures and recovering from errors on the IPC network. Out of the box, all EzViews, and DynaViews are generic in that no software (application code or chiller configuration) is installed until programmed by TechView. In the same way that LLIDs are generic until applied, so is the main processor. A service parts desk or technician can stock a main processor and give it an identity at the point in time it is applied to a chiller. There is additional information that each device must be “bound” with that is dependent on its application. This additional data is called “binding information” and is written to each device either by the factory tester or the TechView Service Tool. LLIDs must communicate with the main processor in order to be identified, recognized, and differentiated from a neighboring device, a service LED and switch are located on each LLID is used to identify a specific device. On CH530 a temperature sensor is bound by being assigned a node number. The binding RLC-SVB05A-EN 7
Page 1 and 2: Diagnostic Troubleshooting Service
Page 3 and 4: Contents CH530 Overview . . . . . .
Page 5: Main Processor Starter Module Power
Page 9 and 10: IPC Overview and Troubleshooting 2
Page 11 and 12: Troubleshooting problems with multi
Page 13 and 14: Chiller has multiple loss of commun
Page 15 and 16: Power SupplyPower Supply Table 2. O
Page 17 and 18: Is the sensor reading accurately? T
Page 19 and 20: Is the transducer reading accuratel
Page 21 and 22: Temperature ( 0 F) 150 140 130 120
Page 23 and 24: Table 4. VFD Components Variable Sp
Page 25 and 26: Variable Speed Fan Control - RTAC O
Page 27 and 28: Current Transformers Where: I0x = t
Page 29 and 30: � WARNING Live Electrical Compone
Page 31 and 32: RTHD Chillers Over/Under Voltage Ch
Page 33 and 34: Over/Under Voltage Starter Module 1
Page 35 and 36: Starter Starting Wye Delta With Con
Page 37 and 38: Starter De-energize 1K1 and Energiz
Page 39 and 40: Starter L2 1K3 When Maximum Phase C
Page 41 and 42: Starter 260 msec After 2K3 Opens Ru
Page 43 and 44: Starter Solid State - RTHD Only CH5
Page 45 and 46: � WARNING Live Electrical Compone
Page 47 and 48: Load Unload Compressor Capacity - R
Page 49 and 50: Compressor Capacity - RTAC Checkout
Page 51 and 52: Figure 33.CHHP Compressor Compresso
Page 53 and 54: . Compressor Capacity - RTAC Table
Page 55 and 56: Is the EXV functioning properly? El
Page 57 and 58:
External LLID Sensor Internal LLID
Page 59 and 60:
Gas Pump - RTHD Only Residual oil i
Page 61 and 62:
Checkout Procedure CAUTION Compress
Page 63 and 64:
Laptop requirements for CH530 TechV
Page 65 and 66:
Using TechView Click on Local Conne
Page 67 and 68:
TechView Service Tool Downloading N
Page 69 and 70:
LED TechView Service Tool Watch for
Page 71 and 72:
TechView Service Tool Figure 45.Uni
Page 73 and 74:
RLC-SVD05A-EN 73
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RTHD and RTAC - Trane

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