WSH-XSC 65D-70D-75D-80D-85D-90D-100D-110D - Delta-Temp

FUNCTIONAL CONNECTIONSONC O O LSTEP:03 / 04F1I15 / 02 / 03 08:03:51MODE ALARM SETUP STATEF2F3? ESC12.2 °C IN Use voltage-free remote control devices that are suitable to commutate very low loads9.3 °C OUT(12V, 10mA)7.0 °C SETF4HOMEfew functionalities and inputs must be activated by configuration parameters whoseaccess is reserved to authorized assistance centres (in order to avoid unauthorizedmodifications)HEATING function is active only in units with options:reversal on water circuitoperation in heat pump(see WATER CONNECTIONS section)ON / OFF FROM REMOTE CONTROLIt allows the remote start and stop, not by keypad.It can be used to disable the unit during the night, theweekend etc., so with ON or OFF periods relativelylongs (some hours).It has not to be used with ON or OFF cycles too muchshorts: they compromise the operating logic and theycan cause malfunctions or faults. In summer operating,for example, ON –OFF cycles lower than one hour cancompromise the thermoregulation logic, that implementsan integral check.If this function is not used, jump therespective terminals.SECOND SET-POINTIt allows the use of a secondary set-point, such as, forexample, for a night operation, which can be activatedby a remote contact.When the contact is CLOSED, the secondary set-pointis activated.CHANGING FROM SUMMER TO WINTER USINGTHE REMOTE CONTROLIt allows the remote changing COOLING/HEATING,rather than by keypad.Generally the unit is delivered with disabled input andthe changing can be activated from keypad.If this function is used, it is necessary to set theparameter 12 accessible only to the service centre; inthis way the changing by keypad is no mere possible.With selection switch open, the unit operates in heating,with selection switch closed it operates in cooling.INVERSION CONTROL ON HYDRAULIC CIRCUITCOMPRESSOR OPERATION SIGNALSIGNAL CUMULATIVE SHUTDOWNM03Y40D9-01 09/04/10 page 18