Carrier 48/50PG C03-14 Operation And Service Manual

Contents

10NOTE: On standard units, the fire shutdown input is the terminalsFire Shutdown 1 and 2. On Humidi-MiZer units, the fireshutdown connections are at PL19.Outdoor EnthalpyIf an Outdoor Enthalpy accessory was field installed, the unit mustbe configured for it by setting Configuration→ECON→EN.SW,identifies the normally open or normally closed status of this inputwhen the outdoor enthalpy is low.IAQ SwitchIf an IAQ Switch accessory was field installed, the unit must beconfigured for it by setting Configuration→AIR.Q→II.CF,identifies the normally open or normally closed status of this inputwhen the indoor air quality value is low (good) and also selects theunit response to this input.NOTE: An IAQ switch cannot be used if an enthalpy switch isalready on this input.IAQ SensorIf an CO2 Sensor accessory was field installed, the unit must beconfigured for it by setting Configuration→AIR.Q→IA.CFselects the unit response to this input. Default conversion to 0 to2000 ppm.OAQ SensorIf an Outdoor Air Quality Sensor accessory was field installed, theunit must be configured for it by setting Configuration→AIR.Q→OA.CF selects the unit response to this input. Defaultconversion to 0 to 2000 ppm.Fan StatusIf a Fan Status accessory was field installed, the unit must beconfigured for it by setting Configuration→UNIT→FN.SW tonormally open (1) or normally closed (2). Normally open (1) is thepreferred configuration.NOTE: Fan Status input is not on the terminals marked FanStatus.Filter StatusIf a Filter Status accessory was field installed, the unit must beconfigured for it by setting Configuration→UNIT→FL.SW tonormally open (1) or normally closed (2). Normally open (1) is thepreferred configuration.Programming Operating SchedulesThe ComfortLink controls will accommodate up to eightdifferent schedules (Periods 1 through 8), and each schedule isassigned to the desired days of the week. Each schedule includesan occupied on and off time. As an example, to set an occupiedschedule for 8 AM to 5 PM for Monday through Friday, the userwould set days Monday through Friday to ON for Period 1. Thenthe user would configure the Period 1 Occupied From point to08:00 and the Period 1 Occupied To point to 17:00. To create adifferent weekend schedule, the user would use Period 2 and setdays Saturday and Sunday to ON with the desired Occupied Onand Off times.NOTE: By default, the time schedule periods are programmed for24 hours of occupied operation.To create a schedule, perform the following procedure:1. Scroll to the Configuration mode, and select CCNCONFIGURATION (CCN). Scroll down to the ScheduleNumber (Configuration→CCN→SCH.O=SCH.N). Ifpassword protection has been enabled, the user will beprompted to enter the password before any new data isaccepted. SCH.N has a range of 0 to 99. The default valueis 1. A value of 0 is always occupied, and the unit willcontrol to its occupied set points. A value of 1 means theunit will follow a local schedule, and a value of 65 to 99means it will follow a CCN schedule. Schedules 2−64 arenot used as the control only supports one internal/localschedule. If one of the 2−64 schedules is configured, thenthe control will force the number back to 1. Make sure thevalue is set to 1 to use a local schedule.2. Enter the Time Clock mode. Scroll down to the LOCALTIME SCHEDULE (SCH.L) sub−mode, and pressENTER. Period 1 (PER.1) will be displayed.3. Scroll down to the MON.1 point. This point indicates ifschedule 1 applies to Monday. Use the ENTER commandto go into Edit mode, and use the Up or Down key tochange the display to YES or NO. Scroll down through therest of the days and apply schedule 1 where desired. Theschedule can also be applied to a holiday.4. Configure the beginning of the occupied time period forPeriod 1 (OCC). Press ENTER to go into Edit mode, andthe first two digits of the 00.00 will start flashing. Use theUp or Down key to display the correct value for hours, in24−hour (military) time. Press ENTER and hour value issaved and the minutes digits will start flashing. Use thesame procedure to display and save the desired minutesvalue.5. Configure the unoccupied time for period 1 (UNC). PressENTER to go into Edit mode, and the first two digits of the00.00 will start flashing. Use the Up or Down key to displaythe correct value for hours, in 24−hour (military) time. PressENTER and hour value is saved and the minutes digits willstart flashing. Use the same procedure to display and savethe desired minutes value.6. The first schedule is now complete. If a second schedule isneeded, such as for weekends or holidays, scroll down andrepeat the entire procedure for period 2 (PER.2). Ifadditional schedules are needed, repeat the process for asmany as are needed. Eight schedules are provided. SeeTable 3 for an example of setting the schedule.48/50PG and PM