SAFETY MANUAL - Tuv-fs.com
SAFETY MANUAL - Tuv-fs.com
SAFETY MANUAL - Tuv-fs.com
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<strong>SAFETY</strong> <strong>MANUAL</strong><br />
3.2.7 NFPA 86 Requirements<br />
The 8000 system is certified to be used in NFPA 85 <strong>com</strong>pliant systems.<br />
The systems should be integrated in accordance with NFPA 85. In particular the<br />
following shall be applied.<br />
• The supplier of the application software for the programmable controller shall<br />
provide the end user and the authority having jurisdiction with the<br />
documentation needed to verify that all related safety devices and safety logic<br />
are functional before the programmable controller is placed in operation.<br />
• In the event of a power failure, the programmable controller (hardware and<br />
software) shall not prevent the system from reverting to a safe default<br />
condition. A safe condition shall be maintained upon the restoration of power.<br />
• The control system shall have a separate manual emergency witch,<br />
independent of the programmable controller, that initiates a safe shutdown.<br />
• Any changes to hardware or software shall be documented, approved, and<br />
maintained in a file on the site.<br />
• System operation shall be tested and verified for <strong>com</strong>pliance with this standard<br />
and the original design criteria whenever the programmable controller is<br />
replaced, repaired, or updated.<br />
• Whenever application software that contains safety logic or detection logic is<br />
modified, system operation shall be verified for <strong>com</strong>pliance with this standard<br />
and the original design criteria.<br />
• The NFPA certification is only applicable where the system is applied in<br />
accordance with the safety manual and NFPA86 requirements.<br />
• A programmable controller not listed for <strong>com</strong>bustion safety service shall be<br />
permitted to monitor safety interlocks, or to provide burner control functions,<br />
provided that its use <strong>com</strong>plies with both of the following:<br />
(1) The programmable controller shall not interfere with or prevent the<br />
operation of the safety interlocks.<br />
(2) Only isolated programmable controller contacts (not directly connected to a<br />
power source) shall be permitted to be wired in series with the safety interlocks<br />
to permit burner control functions.<br />
Doc No P8094 Page 46 of 67<br />
Issue 14 September 2003
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