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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 Service Bulletin SB0069: Model C60 Software Version 4.23 Release Notes Engine Controls 1. Improved TET error during offload and SPV undershoot and hence offload flameouts. 2. Injector switching scheme was changed for Injectors 2 and 3 to help flameout during offload as a part of the improvement in Step #1. Maximum Engine Purge Time The Engine air purge time is now adjustable from 2 to 180 seconds, with a factory default setting of 2 seconds. Contact Capstone Technical Support if additional flue purge times are required to meet NFPA 37 Installation Requirements. Restoration of Settings Version 4.23 updates certain default operational settings (PM data values), upon completion of a software upgrade. In the process, it restores other user-customizable settings to their default values. All the ICHP-related settings and the Fault Input polarity settings must be restored to their customized values upon completion of a software upgrade from Version 4.10, and from System Configurations in the family of Versions 3.9x and 4.0x. This feature provides for system stability following a software upgrade to Version 4.23 software. All the following ICHP-related settings, along with the Fault Input polarity settings, must explicitly be restored to their customized values on a site-by-site basis. Record these settings from the display panel or CRMS, PRIOR to upgrading the software. The ICHP-related settings that are directly affected include the following: • CHP Water Temperature Set Point • CHP Overtemperature Limits • CHP Configuration • CHP Data Source (Feedback and Set Point) • CHP Water Temperature Feedback • CHP Temperature Control Configuration • CHP Mode • CHP Output Relay Setting • CHP Water Flow Rate • Electrical Power Demand Set Point • Analog Inputs There will be explicit indications that the above-mentioned feature has performed as expected: 1. An indication that the ICHP-related settings require an explicit restoration to their customized values will be in the form of a logged fault, the 17001 CHP CONFIG ERR 450049-001 Rev A (September 2004) Page 2 of 3 This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the product specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction. NOTE If you are upgrading from v4.22 to v4.23 software, then disregard the instructions in this section. If you are upgrading from v4.21 and earlier software, then proceed with the following instructions. NOTEPDF Image | Model C60 Software Version 4.23 Release Notes
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