Carrier AquaEdge 19XRV series Operation, Maintenance And Installation Manual

Also see for AquaEdge 19XRV series: Start-up, operation and maintenance instructions Start-up and service instructions Installation instructions Start-up, operation and maintenance instructions Start-up and service instructions

Contents

19INTERNATIONAL CHILLER VISUAL CONTROLLER(ICVC) — The ICVC is the “brain” of the PIC III system. Thismodule contains all the operating software needed to controlthe chiller. The ICVC is mounted to the control panel (Fig. 14)and is the input center for all local chiller set points, schedules,configurable functions, and options. The ICVC has a stopbutton, an alarm light, four buttons for logic inputs, and abacklight display. The backlight will automatically turn offafter 15 minutes of non-use. The functions of the four buttonsor “softkeys” are menu driven and are shown on the displaydirectly above the softkeys.The viewing angle of the ICVC can be adjusted for opti-mum viewing. Remove the 2 bolts connecting the control panelto the brackets attached to the cooler. Place them in one of theholes to pivot the control panel forward to backward to changethe viewing angle. To change the contrast of the display, accessthe adjustment on the back of the ICVC. See Fig. 14.The ICVC features 4 factory programmed languages:• English (default)• Chinese• Japanese• KoreanNOTE: Pressing any one of the four softkey buttons will acti-vate the backlight display without implementing a softkeyfunction.The ICVC may be identified by viewing the back of theplate on which the display is mounted. (Open the control paneldoor to view.) Note any of the following distinguishing featuresin Table 2.Table 2 — Identification Features of the ICVCCHILLER CONTROL MODULE (CCM) — This module islocated in the control panel. The CCM provides the input andoutputs necessary to control the chiller. This module monitorsrefrigerant pressure, entering and leaving water temperatures,and outputs control for the guide vane actuator, oil heaters, andoil pump. The CCM is the connection point for optionaldemand limit, chilled water reset, remote temperature reset,and motor kilowatt output.OIL HEATER CONTACTOR (1C) — This contactor is lo-cated in the power panel (Fig. 15) and operates the heater at115 v. It is controlled by the PIC III to maintain oil temperatureduring chiller shutdown. Refer to the control panel wiringschematic.OIL PUMP CONTACTOR (2C) — This contactor is locat-ed in the power panel. It operates all 380 to 480-v oil pumps.The PIC III energizes the contactor to turn on the oil pump asnecessary.HOT GAS BYPASS CONTACTOR RELAY (3C)(OPTIONAL) — This relay, located in the power panel, con-trols the opening of the hot gas bypass valve. The PIC III ener-gizes the relay during low load, high lift conditions.OIL COOLER THERMOSTATICEXPANSION VALVE (TXV)OIL COOLER THERMOSTATICEXPANSION VALVE (TXV) BULBOIL HEATER TERMINALBOXHIGH PRESSURESWITCH LOCATIONCOMPRESSOR DISCHARGETEMPERATURE SENSORCABLEGUIDE VALVEACTUATOR CABLEDIFFUSER PRESSUREAND DIFFUSER ACTUATORCABLE (FRAME 4 & 5COMPRESSOR ONLY)OIL RECLAIMSIGHT GLASSCABLE FROMCONTROL PANELCOMPRESSOR OIL SUMPTEMPERATURE CABLECOMPRESSOR OIL SUMPPRESSURE CABLEBEARING TEMPERATURESENSOR CABLECOMPRESSOR OIL DISCHARGEPRESSURE CABLEMOTOR TEMPERATURESENSOR CABLEFig. 13 — 19XRV Compressor Controls and Sensor Locationsa19-1606CONTROLLERCOLOROFPLATECEPL NO.(HARDWARE) SOFTWARE OTHERMARKINGSICVC MetallicCEPL130445-03-Ror130445-04-RCESR131350-0X“PIC III”Markingon backof greencircuitboard