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Maintenance, Repair, Replacement and New Installation of Combustion Control Systems for High Temperature Water (HTW) Generation System,
Chicago Dept. of Aviation, Specification Number 132826
Work Services Form Contract 09.10.2015
the remote control panel and programmable logic controllers (PLC) associated with all domestic
water booster pump stations at O’Hare.
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The two (2) actuators and controllers for the chilled water differential pressure bypass control
valves. These consist of the following:
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The valve-mounted actuators for the two (2) valves.
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The two (2) panel-mounted controllers located on the chilled water central control panels.
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The reservoir-fill valve operators (3) (exclusive of the reservoir fill valve proper).
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The pneumatic actuator and positioners on all potable water pressure reducing valves (6) and
associated flow (2)and water meters (1) at the H&R O’Hare
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The service water tanks (3) north, northwest and south including level, temperature and pressure
controls and their associated equipment.
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The actuators and controllers winter bypass butterfly valves for the North, South and East H&R
Cooling Towers.
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All instrumentation, recorders, controls and equipment located on, or related to the chilled water
master control panels and the chilled water recorder panel, including all signal generation,
transmission and indication.
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Chilled Water System: Condenser Water Chemical Feed System Controllers, the three (3) Cooling
Tower condenser water chemical feed system controllers
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South Cooling Tower, Lakewood Instruments, Model 2175-RTC
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North Cooling Tower, Lakewood Instruments, Model 2175-RTC
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East Cooling Tower, Lakewood Instruments, Model 2175-RTC
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The level controls for the three (3) Cooling Towers.
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Chlorine monitoring Equipment located at the H&R Building:
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The three (3) chlorine residual analyzers, one in each potable water reservoir at the H&R Building.
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One (1) chlorine residual recorder and residual analyzer mounted in the main potable water
control panel. Contractor shall provide charts for the recorder during the term of this Contract.
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Chlorine feed system located at the H&R Building:
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The three (3) chlorine residual analyzers and controllers on the cooling towers
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North Hach cl-17 Chlorine analyzer and controller and Steiner pumps
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South Hach cl-17 Chlorine analyzer and controller and stener pumps
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East Hach cl-17 Chlorine analyzer and controller and stener pumps
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The two (2) taxiway bridge deck heating systems.
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The three (3) H&R Building low temperature water building heating systems.
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The three (3) freeze protection systems for the three (3) Cooling Towers.
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H&R fuel oil supply system control panel, excluding the fuel oil pumps and fuel oil piping for the
eight (8) 20,000 gallon fuel oil tanks located at the H&R Building.
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The actuators and controllers for the cell valves for the North, South and East cooling tower. Also
the dampers located on the Wet and Dry sections of the South tower.
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Scope of Work and Detailed Specifications
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