Carrier 50FF Series Control Manual

Also see for 50FC Series: Installation, operation and maintenance instructions Controls, Start-Up, Operation and Troubleshooting User manual Service and maintenance instructions Installation, operation and maintenance instructions

Contents

Carrier 50FF Series Control Manual Manual pdf 22 page image

22Start typeThe start type and the condition of the unit outside of the scheduleprogram will be selected on the screen PH03:9 - SCHEDULE PROGRAMMINGPH03Start type'ON-OFF schedule'• ON/OFF schedule: within the program the unit will operatewith the setpoint established on COOLING mode (summer) andHEATING mode (winter), whilst outside the schedule it will bestopped.9.1. Schedule programming: Graphic terminalThe Graphic terminal incorporates a time scheduler with possibilityof 3 different programs. It allows to choose for each day of theweek one of these 3 programs.The schedule programming is accessed from the MAIN MENU.This is the group of screens L. SCHEDULE.Date and timePH02DST: ENABLETransition time:060minStart: LAST SUNDAYin MARCH at 02.00End: LAST SUNDAYin OCTOBER at 02.00On the next screen, the automatic change of schedule can beactivated (by default).On the first screen, it is possible to change the time and date ofthe control. The day of the week will be automatically updated.PH01Clock settingTime: 13:45Date: 22/06/2017Day: ThursdayIn this way, , from LAST SUNDAY IN MARCH at 2.00 hours untilLAST SUNDAY IN OCTOBER a at 3.00 hours, to the normalschedule (winter schedule) it is necessary to add 60 minutes, thusobtaining the summer schedule.These values are adjustable to be adapted to different hourlychanges out of the European Union.PH08Schedule with setpointchange (winter)Indoor set. 21.0ßCOutdoor set. 19.0ßCPH07Schedule with setpointchange (summer)Indoor set. 26.0ßCOutdoor set. 28.0ßC• ON/OFF schedule with limit SET of ON: outside the scheduleprogram the unit is off, however a start safety device isestablished when the temperature goes above or below thelimit setpoints introduced in PH09, PH10 and PH11.With this type of start-up two new parameters are displayedon the screen:* Disab.comp.COOL: when the unit is working with the safetylimit setpoint in COOLING mode, the compressors can bedisabled in order that if the conditions of the outdoor air arefavourable, the unit carries out free-cooling.* Dis. air refresh.: when the unit is working with the safetylimit setpoint is disabled the air renewal.• Schedule only setpoint change: two control setpointtemperatures will be set on the screen PH07 (summer) and onthe screen PH08 (winter): one, during the program slots (Indoorset.) and another outside the program (Outdoor set.).PH03Start type'schedule onlysetpoint change'PH03Start type'ON-OFF schedule withlimit SET of ON'- ON for LIMIT SET -Disab. comp. COOL: NDis. air refresh.: NThe regulation setpoint and safety limit setpoint are establishedon the screen PH09 (summer) and on the screen PH10 (winter):* Indoor set.: setpoint for the time slots.* Limit set.: safety limit setpoint outside the schedule.PH09Schedule with ONby limit SP (summ.)Indoor set. 26.0ßCLimit set. 34.0ßCMNLMain menu 12/15SCHEDULEALARMSGENTEST