Carrier 50HC Series Service And Maintenance Instructions

Also see for 50HC Series: Installation instructions Installation instructions

46Reset thermostat at a position above room temperature.Compressor will shut off. Evaporator fan will shut offafter a 30--second delay.To shut off unit, set system selector switch at OFFposition. Resetting thermostat at a position above roomtemperature shuts unit off temporarily until spacetemperature exceeds thermostat setting.Ventilation (Continuous Fan)Set fan and system selector switches at ON and OFFpositions, respectively. Evaporator fan operatescontinuously to provide constant air circulation. When theevaporator--fan selector switch is turned to the OFFposition, there is a 30--second delay before the fan turnsoff.START--UP, PREMIERLINKCONTROLSELECTRICAL OPERATION HAZARDFailure to follow this warning could result in personalinjury or death.The unit must be electrically grounded in accordancewith local codes and NEC ANSI/NFPA 70 (AmericanNational Standards Institute/National Fire ProtectionAssociation.)! WARNINGUse the Carrier network communication software to startup and configure the PremierLink controller.Changes can be made using the ComfortWORKSrsoftware, ComfortVIEWt software, Network ServiceTool, System Pilott device, or Touch Pilott device. TheSystem Pilot and Touch Pilot are portable interfacedevices that allow the user to change system set--up andsetpoints from a zone sensor or terminal control module.During start--up, the Carrier software can also be used toverify communication with PremierLink controller.NOTE: All set--up and setpoint configurations are factoryset and field--adjustable.For specific operating instructions, refer to the literatureprovided with user interface software.SET--UP INSTRUCTIONSAll set--up and set point configurations are factory setand field--adjustable.Refer to PremierLinkt Installation, Start--Up andConfiguration Instructions .for specific operatinginstructions for the controller. Have a copy of thismanual available at unit start--up.NOTICEPerform System Check--Out1. Check correctness and tightness of all power andcommunication connections.2. At the unit, check fan and system controls for properoperation.3. At the unit, check electrical system and connectionsof any optional electric reheat coil.4. Check to be sure the area around the unit is clear ofconstruction dirt and debris.5. Check that final filters are installed in the unit. Dustand debris can adversely affect system operation.6. Verify that the PremierLink controls are properly con-nected to the CCN bus.START--UP, RTU--OPEN CONTROLSSET--UP INSTRUCTIONSRefer to the following manuals for additionalinstallation, wiring and troubleshooting informationfor the RTU--OPEN Controller.: “Controls, Start--up,Operation and Troubleshooting Instructions,” “RTUOpen Installation and Start--up Guide” and“RTU--Open Integration Guide”. Have a copy of thesemanuals available at unit start--up.NOTICE50HC