mCq pCO - Standard + Heat Pump - McQuay

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Conditioning: pCO Standard chiller + heat pump User Guide ver. 2.9 02/11/99IndexMain functions performed by pCO----------------------------------------------------------------------- 1Index ------------------------------------------------------------------------------------------------------------ 2Hardware architecture--------------------------------------------------------------------------------------------- 3Keypad---------------------------------------------------------------------------------------------------------- 4Main Card------------------------------------------------------------------------------------------------------ 8Mounting pCO optional cards--------------------------------------------------------------------------- 10Mounting the Eprom ------------------------------------------------------------------------------------------------------------- 10Before requesting Service ------------------------------------------------------------------------------------------------------ 11Inputs / Outputs--------------------------------------------------------------------------------------------------- 11Analogue inputs -------------------------------------------------------------------------------------------- 11Digital inputs ------------------------------------------------------------------------------------------------ 12Digital outputs----------------------------------------------------------------------------------------------- 12Analogue output-------------------------------------------------------------------------------------------- 13Inputs and outputs connections ---------------------------------------------------------------------------- 14Connecting NTC temperature probes --------------------------------------------------------------------------------------- 14Connecting Keller pressure transducer ------------------------------------------------------------------------------------- 14Connection to the tension digital inputs ------------------------------------------------------------------------------------- 16Connecting the digital outputs ------------------------------------------------------------------------------------------------- 16Connecting the analogue outputs--------------------------------------------------------------------------------------------- 17The program-------------------------------------------------------------------------------------------------------- 18General description---------------------------------------------------------------------------------------- 18Software initialization ------------------------------------------------------------------------------------- 19Configuration Guide--------------------------------------------------------------------------------------- 20Use guide ---------------------------------------------------------------------------------------------------- 21Status of the system------------------------------------------------------------------------------------------------------------- 21Water temperature regulation-------------------------------------------------------------------------------------------------- 23Compressors start-up (with and without capacity-controlled) ---------------------------------------------------------- 27Reversing cycle electrovalves ------------------------------------------------------------------------------------------------- 28Defrosting cycle------------------------------------------------------------------------------------------------------------------- 28Electropump ----------------------------------------------------------------------------------------------------------------------- 29Fans and fans inverter ---------------------------------------------------------------------------------------------------------- 31Times ------------------------------------------------------------------------------------------------------------------------------- 32Antifreeze procedure ------------------------------------------------------------------------------------------------------------ 33Low pressure pressurestat----------------------------------------------------------------------------------------------------- 33Double Setpoint------------------------------------------------------------------------------------------------------------------- 34Time-zones ------------------------------------------------------------------------------------------------------------------------ 34Supervisor --------------------------------------------------------------------------------------------------- 36Printout ------------------------------------------------------------------------------------------------------- 39Masks tree----------------------------------------------------------------------------------------------------------- 40Selectable parameters------------------------------------------------------------------------------------ 58Pag.2/61
Conditioning: pCO Standard chiller + heat pump User Guide ver. 2.9 02/11/99Hardware architectureFIG. 1The figure above shows pCO's hardware architecture:• Main Card with CPU, BIOS, application SW and I/O• Keypad-led-display: terminal unit• Connection cable between terminal and main cardPag.3/61
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mCq pCO - Standard + Heat Pump - McQuay

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