Specifications include, but are not limited to: QUARTERLY: • Re-zero opacity monitors and clean lenses • Blow down water filled sensing lines for DP and pressure transmitters SEMI-ANNUALLY: • Calibrate oxygen analyzers • Calibrate opacity monitor. ANNUALLY: • Perform combustion testing and tune up on each fuel source. • Calibrate DP and pressure transmitters for steam flow, air flow, feed water flow, drum level, drum pressure, main steam, and main steam header pressure. • Calibrate natural gas and fuel oil flow meters. • Perform safety limit testing for High-high steam pressure, high steam pressure, low atomizing steam pressure, low oil pressure, atomizing steam flow, high gas pressure, low gas pressure, low fire switch-gas, low fire switch-oil, low fire switch-ID damper, purge air flow, combustion air flow, high water alarm, low water alarm, low water cutoff, auxiliary low water cutoff, purge timer, flame failure response time, and ignition pilot flame failure. • Confirm proper operation of all chart recorders/Siemens controllers and calibrate as needed. AS NEEDED: • Retro Commissioning services. If needed and approved by CCSU, these services shall be quoted and invoiced per contract rates.