© 2021 Carrier 1TSD-4001August 1, 2021NXTSD507HD, NXTSD512HDTouchscreen InterfaceInstallation and OperationDESCRIPTIONThis bulletin describes the installation and operation of the NXTSD507HD (7”) and NXTSD512HD(12.1”) touchscreen interfaces. An overview of navigation through the available data as well as device-specific information is covered.These optional devices allow for enhanced and expanded connectivity to the NXF4000 and PPC4000parallel-positioning systems. This bulletin is intended to be a supplement to the specific bulletin forany connected control. Those bulletins may be specified in this document. Please refer to thosebulletins for any specific information on installation, features, commissioning or operation of theconnected controls.WARNING: Failure to properly install, operate, or commission the equipmentin this manual could result in significant property damage, severe injury, ordeath. It is the responsibility of the owner or user to ensure that theequipment described is installed, operated and commissioned in compliancewith this manual as well as the manuals of other system components, aswell with all applicable national and local codes.WARNING: Boiler operation, maintenance, and troubleshooting shall only beconducted by trained personnel. Persons troubleshooting lockouts orresetting the control must respond properly to troubleshooting error codes asdescribed in this product bulletin. Jumpers being used to perform static teston the system must only be used in a controlled manner and must be removedprior to the operation of the control. Such tests may verify the externalcontrollers, limits, interlocks, actuators, valves, transformers, motors andother devices are operating properly. Such tests must be conducted withmanual fuel valves in the closed position only. Replace all limits and interlocksnot operating properly, and do not bypass limits in interlocks. Failure to followthese guidelines may result in an unsafe condition hazardous to life andproperty.