Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual

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

Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual Manual pdf 97 page image

Control ModulesTurn controller power off before servicing controls. Thisensures safety and prevents &image to the controllecThe ICVC and CCM modules perform continuous diagnos-tic evaluations of the hmdware to determine its condition.Proper operation of all modules is indicated by LEDs(light-emitting diodes) located on the circuit board of the ICVCand CCM.There is one green LED located on the CCM board, and onered LED located on the ICVC and CCM boards respectively.RED LED (Labeled as STAT) --If the red LED:• Blinks continuously at a 2-second interval, the module isoperating properly• Is lit continuously, there is a problem that requiresreplacing the module• Is off continuously, the power should be checked• Blinks 3 times per second, a software error has beendiscoveled and the module must be replacedIf there is no input powel, check the luses and circuit breakerIf the fuse is good, check for a shorted secondary of the trans-former or. if power is present to the module, replace the module.GREED LED (Labeled as COM)-- These LEDs indicatethe communication status between different paris of the con-troller and the network modules and should blink continuously.Notes on Module Operation1. The chiller operator monitors and modifies configura-tions in the microprocessor by using the 4 softkeys andthe ICVC. Communications between the [CVC and theCCM is accomplished through the SIO (Sensor Input/Output) bus, which is a phone cable. The communicationbetween the CCM and VFD is accomplished through thesensor bus, which is a 3-wire cable.2. If a green LED is on continuously, check the communica-tion wiring. If a green LED is off. check the red LEDoperation. If the red LED is normal, check the moduleaddress switches (SWI) (Fig. 44 and 45). Confirm _dlswitches _ue in OFF position.All system operating intelligence resides in the ICVC.Some safety shutdown logic resides in the Gateway incase communications are lost between the VFD andICVC. Outputs are controlled by the CCM and VFD aswell.3. Power is supplied to the modules within the control panelvia the 24-vac TI and T2 transformers. The transformers_u'e located within the power panel.In the power panel, TI supplies power to the compressoroil heatel: and optional hot gas bypass, and T2 suppliespower to both the ICVC and CCM.T3 provides 24V power to the optiomd DataPort TM orDataLINK TM modules.Power is connected to Plug Jl on each module.Chiller Control Module (CCM) (Fig 45)INPUTS -- Each input channel has 2 or 3 terminals. Refer toindividual chiller wiring diagrams for the con'ect terminalnumbers for a specific application.OUTPUTS- Output is 24 vac. There are 2 termimds peroutput. Refer to the chiller wiring diagram for a specificapplication for the correct terminal numbel_.CONTRASTADJUSTMENTMODULE PART NUMBERSOFTWARE PART NUMBER@BACK OFICVCo o @ o \ICVC [/ / \J7 SIO J1 POWER/ J8 SERVICECCNCCN INTERFACECONNECTION/We • / •mDATALINK ORDATAPORT MODULE (OPTION)[]CB1SWlFig 44 -- Rear of ICVC (International Chiller Visual Controller)97