mCq pCO - Standard + Heat Pump - McQuay

Conditioning: pCO Standard chiller + heat pump User Guide ver. 2.9 02/11/99Enter NewUser Password0003Press the 'PRG' button to access the User masks loop.Then introduce the password (0003) and press the 'DOWN' button to access the followingmasks where you can:• set the lower and upper Winter set-point;• set the lower and upper Summer set-point;• set the winter/summer temperature working zone;• set the temperature dead-zone around the set-point;• select the type of probe used: temperature probes at evaporator inlet or outlet;• set the start-defrosting temperature value (set-point);• set the end-defrosting temperature value (set-point);Important: this value is not required if end-defrosting depends on the pressurestat (unitequipped with only one probe);• set the time beyond which the temperature must remain below the start-defrosting set-pointand the compressor of that circuit must be started before a defrosting cycle;• set the max. time of the defrosting cycles relative to the two circuits;• set simultaneous defrostings;• set end defrosting pressure;• select automatic start-up after a power failure condition while the unit is On;• select remote on/off (digital input and/or supervisory pc);• select the remote switch for summer/winter functioning modes (in this case thewinter/summer buttons on the front panel keypad will be disenabled);• set low and high water temperature thresholds at evaporator inlet (winter mode);• set low and high water temperature thresholds at evaporator inlet (summer mode);• set antifreeze value (set-point). When the water temperature at the evaporator outlet fallsbelow the antifreeze set-point, the relative alarm will be displayed;• set high pressure thrshold to be detected by the pressure transducers;• set a time-delay before activating the high/low water temperature alarm (respectively insummer and winter modes) at evaporator inlet;• give the unit a specific address when it is network-connected into a supervisory system;• set a different User keyword.MANUFACTURER PROGRAM loopM_MANUF_PASSEnter ManufacturerPasswordxxxxRight PasswordMANUFAC_MENUUnit ConfigurationCompressorsGlobal ParameterUnit Initializat.CONFIG_COS1Clock Board NPrinter Present NSupervisor NPart. Logic DWM.COPCONFIG_COS2Pag.49/61