mCq pCO - Standard + Heat Pump - McQuay

Conditioning: pCO Standard chiller + heat pump User Guide ver. 2.9 02/11/99Press the Maintenance button to access the mask where you can display the working hours ofthe unit and of each single compressor and the start up’s number of each compressor.After having inserted the maintenance password (0018) you can access the following masksloops where you can:• select the timer threshold for the unit and for the compressors. When such a threshold isexceeded, the relative alarm prompting maintenance will appear;• use the mask M_RS_TIMER to zero down the working hours of unit and compressors;• calibrate the connected probes;• select the manual procedure. The electropump is always the first device to be started. Theother two masks in the manual procedure loop allow you to set capacity-controlled routines,fans and reversing cycle valve in the manual mode relatively to circuit no. 1 and no. 2.When selecting the manual procedure, the ON/OFF button on the keypad will flash.• the last mask gives you the possibility of changing the maintenance password.PRINTER loopM_PRINTERCyclic Print24 hImmediate Print ofReport Unity NThe mask above will appear only if pCo has been connected to a serial printer.You can set the exact time you wish to get a printout of the main parameters (see list above) aswell as immediate printouts of the same parameters.In the event of off-normal condition the relative alarm message including type of alarm, dateand time, will be immediately printed.I/O loopM_SYNOPTIC1Water TemperatureEvap.Inlet00.0°CEvap.Outlet00.0°CM_SYNOPTIC2Temperature ProbePack 100.0°CPack 200.0°CM_SYNOPTIC3Pag.42/61