Atch_16_-_Sequence_of_Operations,_I-O_List,_&_Data_Sheets.pdf

Attachment A:

Sequence of Operations

CH&PP REPAIR ASH HANDLING CONTROL SYSTEM

EIELSON AFB, ALASKA

PROJECT NO.: FTQW 12‐1008

BOTTOM ASH & FLY ASH TRANSFER SEQUENCE OF OPERATION

Design Alaska, Inc. Page 1 of 5

BACKGROUND

The Ash System PLC transfers ash from each unit to the respective Storage Silo. For Bottom Ash there are two systems that transfer the ash to the storage silo. System 1 transfers ash from units 1, 2 and 3 to the Bottom Ash Storage Silo. System 2 transfers ash from units 4, 5 and 6 to the Bottom Ash Storage Silo. The Bottom Ash system has 2 mechanical exhausters (ME‐1, ME‐2) that are each connected to a respective bag filters (BF‐1, BF‐2). The Pulse Air Panels run the bag filters along with some signals from the Bottom Ash PLC.The Fly Ash system PLC transfers ash from units 1‐6 Baghouses and Multiclones to the Fly Ash Storage Silo.

APPLICABLE DRAWINGS

IA‐100 Bottom Ash & Fly Ash PLC Panel Layout

IS‐100 Bottom Ash & Fly Ash PLC Panel Schematic

IT‐100 to IT‐107 Bottom Ash & Fly Ash PLC Panel Termination Drawings

IA‐110 Bottom Ash & Fly Ash PLC Panel Implementation

PI‐100 Bottom Ash Valve Layout

PI‐200 Fly Ash Valve Layout

ASH PULLING SEQUENCE OF OPERATION

Before any operations are performed on the panel, the Operator will check the risers for rocks before starting the system to facilitate ash transfer. The Operator will then perform the following steps to pull bottom ash:

Operator selects System 1 Overview screen and from that screen goes to a selection screen and picks the Boiler 1 Ash Pit Hoppers and returns to the System 1 Overview screen. This will open the gate valve for Boiler 1 Ash Pit Hopper when the system is started.

With the group selected the Operator Starts the Vacuum system which starts the respective Exhauster and Bag Filter system. System will turn on an indicator to the Boiler Operator that identifies that Boiler 1 is currently having its ash pulled.

Operator will pull the plug and place the crossbar in the hopper, open the hopper door and pull the ash into the hopper. The Operator will work from the farthest door to the nearest door with respect to the Silo. After finishing with the last hopper door the operator will let the system run for a few minutes to allow it to clear out.

Design Alaska, Inc. Page 2 of 5

After finishing with Boiler 1 the Operator then selects the next gate valve to open and closes the previous gate valve. The system will turn off the indicator to the Boiler Operator for Boiler 1 and turn on the next selection. The Operator will do the same sequence as above for the remaining Ash Pits on Boilers 2 & 3 using the System 1 vacuum.

After finishing with Boiler 3 the Operator then will go to the System 2 Overview and selects the next gate valve to open and closes the previous gate valve on System 1, since the Boilers 4‐6 are on System 2. The PLC system will turn off the indicator to the Boiler Operator for Boiler 3 and turn on the next selection. The Operator will do the same sequence as above for the remaining Ash Pits on Boilers 4, 5 & 6 using the System 2 vacuum.

The next area for ash removal is the Economizers and there are 3 Boilers (1‐3) with 7 hoppers each. The Operators use the hand mode and index the system through the various valves. From the System 1 Overview screen the Operator will go to the selection screen and pick the Boiler 1 Economizer Hoppers and return to the System 1 Overview screen. From the Overview screen the Operator will Start the Vacuum and monitor the analog vacuum indication on the screen to determine when the hopper is empty. The Operator will index the system to the next hopper untill the last hopper is empty.

The Operator will do the same sequence as above for the remaining Econimizer Hoppers on Boilers 2 & 3 using the System 1 vacuum and waiting a clearout time between each Boiler. After Boiler 3 is finished the Operator will Stop the vacuum from the System 1 Overview screen.

The next area for ash removal is the Windboxes. Each Boiler has 2 winboxes except for Boiler 6 which has 1. On the Sytem 1 Overview screen the Operator will go to the selection screen and pick the Boiler 1 Windbox Hoppers and return to the System 1 Overview screen. From the Overview screen the Operator will Start the Vacuum and monitor the analog vacuum indication on the screen to determine when the hopper is empty. The Operator will index the system to the next hopper untill and when the last hopper is empty wait for a time stop the vacuum. This process is repeated for Boilers 2 & 3 on the System 1 Overview.

After finishing the System 1 Windboxes the Operator will go to the System 2 Overview screen and repeat the above process for Boilers 4, 5 & 6 selecting the appropriate Boilers Windbox Hoppers remembering that Bioler 6 has only 1 Hopper. After Boiler 6 is finished the Operator will wait for a time to clear out the System 2 lines before stopping the vacuum.

The next area for ash removal are the Baghouses and Multiclones. There are 4 Modules in each Baghouse and 3 for each Multiclone. Boilers (1,3,5) make up the East side and Boilers (2,4,6) make up the West side. From the Fly Ash Overview Screen, the Operator selects Open SG1 PB to open the slide gate valve for the East Side Baghouses. Operator then presses Start Fly Ash System PB to start vacuum then presses Index PB to move to the intended module to pull ash. Once on the correct module, Operator presses Open Disc Valve PB to open the gate of the module. Operator

Design Alaska, Inc. Page 3 of 5 watches the vacuum pressure and waits untill it drops to around ‐7 in Hg and will press the Index PB to move to the next module. When done with the last module of the East Baghouses, Operator will allow the line to clear for a time and then move to the next line.

To pull the East Multiclones, Open the slide gate SG2 before closing SG1 and continue on using the Index PB to cycle through clearing out the East modules. After all modules are done, allow the line to clear for a time and then move to the next line.

To pull the West Baghouses, Open the slide gate SG3 before closing SG2 and continue on using the Index PB to cycle through clearing out the West modules. After all modules are done, allow the line to clear for a time and then move to the next line.

To pull the west multiclones, open the slide gate SG4 before closing SG3 and continue on using the index PB to cycle through clearing out the east modules. After all modules are done, allow the line to clear for a time and then press the fly ash system started PB to stop the vacuum. After vacuum is off the operator will close SG4.

ASH PULLING CONTROL DESCRIPTION

As a companion to the Sequence of Operation, the control description describes the function of the remaining Screens and their indications and buttons. This description is the same for HMI station #1 or #2. For the new system the following screens will need to be developed with the included descriptions.

Bottom Ash System 1 Overview screen – This is the primary screen used to pull Bottom Ash from Boilers 1,2 & 3. This screen needs to be rebuilt to have a look and feel similar to the Fly Ash Overview using the same color scheme and operational procedure. Adding the same functional level as the Fly Ash System will make the Selection screens [F17] not be needed. The new System 1 Overview will show the respective Exhauster and bag filter and allow the start and stopping [F7/F8] of this equipment as a system. The new screen will also show all the Boiler 1‐3 Lines similar to the Fly Ash Overview. The color scheme will be the same as the Fly Ash System with Green representing running/open and Red indicating stopped/closed.

The new screen will have an Emergency Stop Button [F21] and menu select PB’s to transition to the following screens:

System 2 Overview [F19]

Reciever Select [F18] / Crossover Setup Screen for both BA/FA

Alarms Screen [F20]

Fly Ash System Overview

Trend Menu Screen

Design Alaska, Inc. Page 4 of 5

The new screen will also have Mode Select Pushbuttons that allow the Operator to run the system in Automatic or Manual [F3/F1] and also have an Index PB that will function similar to the Fly Ash System allowing the Operator to move to the next Hopper at his discretion in Manual mode. The new system will also allow the Operator, before starting the system vacuum, to place the system in a particular location and then start the system and allowing indexing form the selected spot. The Bottom Ash has a operating mode select for Continuous or Normal [F5/F6]. The System Integrator will need to look at the functionality and talking with the Plant, determine if that feature is still needed.

Bottom Ash System 2 Overview screen – This is the primary screen used to pull Bottom Ash from Boilers 3,4 & 5. This comments for System 1 Overview all apply to this screen and it should be similar to the System 1 Screen in look and functionality. This may be included on the System 1 screen if all the components can be placed on the screen. Reference the drawing PI‐100 for the screen development since it is the most accurate depiction of the current system.

Fly Ash Overview screen – This is the primary screen to pull Fly Ash from the Baghouses and Multiclones for both the East and West sides. This screen should be similar to the existing Overview and have the same functionality. The new system will also allow the Operator, before starting the system vacuum, to place the system in a particular location and then start the system and allowing indexing form the selected spot.

Currently the Fly Ash always starts from the beginning and the Operator has to Index to the spot he wants to pull from sometimes requiring many pushbutton presses to get to the required spot and the is no backup feature. Allowing the Operator to select the spot to start at before starting the system will be a much needed improvement and reduce button presses. The switches on the Fly Ash Panel for Auto/Man Master On/Off and Exhauster select will be integrated into the HMI as these switches will go away.

Reference the drawing PI‐200 for the screen development since it is the most accurate depiction of the current system.

Below is a screen shot of the existing Fly Ash Overview screen and should be used as an example of the look and feel of the new project for the complete system.

Design Alaska, Inc. Page 5 of 5

Reciever Select and Crossover Setup Screen – This screen will be the setup screen for all the combinations of using the lines, exhausters and Silos. All permissable setups are made while the system is down from this screen such that when the systems are started the corresponding valves will open as needed.

Alarms screen – This is the screen where alarms are displayed and identefied so that the Operator can view them, acknowledge and reset as required.

Trend Menu Screen – This is the screen where the Operator can view historical trends of analog values.

They will be primarily interested in the system vacuum values since they look at these currently on the Yokogawa digital chart recorder. These trends should replace that functionality and allow the operator to view these trends in a window while still operating the system. The historical data should be available for viewing for at lease 1 week so that they can go back and troubleshoot problems. After 1 week the data can be over written.

BOTTOM ASH UNLOADING SEQUENCE OF OPERATION

Design Alaska, Inc. Page 1 of 4

The Bottom Ash unloading operation transfers ash from the Storage Silo into a truck that will drive the ash to the on‐site landfill where it will be discarded. There are two unloading stations the operator can use for redundancy purposes. The procedure for unloading is the same for either station and is described in detail below.

APPLICABLE DRAWINGS

IA‐200 Bottom Ash #1 Unloading Station Panel Layout IA‐210 Bottom Ash #2 Unloading Station Panel Layout

BOTTOM ASH UNLOADING SEQUENCE OF OPERATION

Before any operations are performed on the panel, the Operator will bring in the truck and position it under the intended spout for the unload process. The Operator will then perform the following steps to fill the truck:

Place the Fan selector switch to the On position.

Place the Purge selector switch to the On position.

With both systems running the Operator will depress the Spout Down PB to lower the spout down into the truck. Operator will verify that the spout is alligned with the truck for proper filling.

[Operation with the System Mode switch in Manual Position]

With the spout down, Operator will start the Feeder motors by pressing the Feeder Start PB.

Operator will allow feeders to run for a moment to clear any ash that is in the feeder box. Operator verifies that the Feeder is running from the lighted PB.

After a moment Operator will Start the Rotary by pressing the Rotary Start PB. Operator verifies that the rotary is running from the lighted PB.The Rotary motor will not run unless the PLC has the run contact from the Feeder motor.

With Rotary running the Operator then places the Knife Gate in the Auto position and it will open.

Note, the knife gate will not open unless the PLC has a run contact from the Rotary motor.

System will start filling the truck. The Operator will monitor the fill time and the spout to insure no overfill. The new level sensor will turn the level full indicator light on the panel.

When the truck is full the Operator places the knife gate selector switch to the Close position and stops the Rotary by pressing the Rotary stop PB. This will stop the feed and allow the Feder box to empty out.

Design Alaska, Inc. Page 2 of 4

After allowing the Feeder box to clear out the Operator stops the Feeder by pressing the Feeder stop PB. Once the feed is off the Operator will press the vibrate PB to clear any ash in the spout into the truck.

After vibration timer is done the Operator will raise the spout by pressing the Spout Up PB unti the spout is raised up and clear of the truck.

With the spout raised the operator will place the Purge fan in the Off position and allow the vent fan to run for a moment before placing the Fan in the Off position.

[Operation with the System Mode switch in Auto Position]

With the spout down, Operator will start the system by pressing the System Start PB. The Feeder will start automatically and run for a moment to clear any ash that is in the feeder box. The Operator will see that the Feeder is running from the lighted PB.

After a delay the PLC will Start the Rotary motor. The Operator will see that the rotary is running from the lighted PB.The Rotary motor will not run unless the PLC has the run contact from the Feeder motor.

With Rotary running and the knife gate switch in Auto position the PLC will open the knife gate.

Note, the knife gate will not open unless the PLC has a run contact from the Rotary motor.

System will start filling the truck. The PLC will monitor the fill time and the spout level switch to insure no overfill. The knife gate will close automatically when the level switch is made or the max fill time is exceeded.

When the truck is full the level switch light should be on. After the knife gate is closed the PLC will stop the Rotary motor. This will stop the feed and allow the Feder box to empty out.

After running the Feeder motor for an off delay of 45 seconds the PLC will stop the Feeder motor.

Once the feeder is off the Operator will press the vibrate PB to clear any ash in the spout into the truck.

After vibration timer is done the Operator will raise the spout by pressing the Spout Up PB unti the spout is raised up and clear of the truck.

With the spout raised the operator will place the Purge fan in the Off position and allow the vent fan to run for a moment before placing the Fan in the Off position.

Any time durring the auto fill sequence, if the Operator presses the System Stop PB, the shutdown sequence will be innitiated in the same mannor as high level switch or max fill time exceeded.

BOTTOM ASH UNLOADING CONTROL DESCRIPTION

As a companion to the Sequence of Operation, the control description describes the function of the remaining indications and switches as well as the operation when the sequence does not operate as expected. This description is the same for station #1 or #2.

Design Alaska, Inc. Page 3 of 4

Emergency Stop PB – There are E‐Stop PB’s on each unload station as well as the PLC panel that will drop the power to the PLC and place all equipment in their de‐energized fail state.

Rotary Start/Stop PB’s – The Rotary motor will be allowed to start the VFD in the forward mode if the Feeder motor is running. If the Feeder motor stops the Rotary motor will stop. There is an indicator light in the start PB that will indicate the run contact is made.

Feeder Jammed IL ‐ There is a Feeder jammed indicator light that will come on when the PLC has tried to clear a jam 3 times and has been unsucessfull. The Rotary motor has a low speed switch that when active and the VFD is running in FWD will innitiate a sequence where the Rotary will:

Stop for a preset time

Run in REV for a preset time

Stop for a preset time

Run in FWD normally

If this sequence runs 3 times and still is getting the low speed switch then the system will stop and place the Feeder Jammed light on and wait for the Operator to determine the problem.

Feeder Start/Stop PB’s ‐ The Feeder motor will be allowed to start if the system is on (No E‐Stops pressed).

It is up to the Operator to make sure the spout is lowered and truck in place. There is an indicator light in the start PB that will indicate the run contact is made.

Spout Up PB – The Spout Up PB will run the spout motor to raise the spout untill a upper limit switch is made. There is an indicator light in the PB that will indicate the upper limit switch is made.

Level Probe Clean PB – The level probe clean PB will purge the level detector with compressed air to blow it out and clear any plugging that may occure to keep it functioning.

Vibrate PB – The Vibrate PB activate a mechanical vibrator that will shake any loose ash into the truck from the spout.

Spout Down PB ‐ The Spout Down PB will run the spout motor to lower the spout untill a lower limit switch is made. There is an indicator light in the PB that will indicate the lower limit switch is made.

Level Full IL – The level full indicator light will come on when the level sensor tip mounted on the spout is covered in ash.

Slack Cable Fault IL – The slack cable fault indicator light will come on when the slack cable limit switches are made indicating that one side of the spout may be hung up or not level.

Design Alaska, Inc. Page 4 of 4

System Auto/Manual SS – The System A/M selector switch is used to put the feed system in automatic PLC control of the Knife Gate, Rotary motor and Feeder motor.\

System Start PB – The System Start PB will start the automatic PLC controlled feed sequence when the System Mode selector switch is in the Auto position.

System Stop PB – The System Stop PB will stop the automatic PLC controlled feed sequence when the System Mode selector switch is in the Auto position.

Fan SS – The Fan selector switch is used to turn on the Vaculoader Exhaust Fan.

Purge SS – The Purge selector switch is used to activate the purge controller which will sequence the pilot solenoid valves on and off.

Gate SS – The knife gate selector switch is used to start the feed of ash to the Rotary by placing it in the auto position. In auto if the PLC has a run contact from the Rotary it will open the knife gate to start the feed. If the run contact is lost then the PLC will close the knife gate. If the switch is placed in the close position it will close and stop ash feed to the Rotary.

FLY ASH UNLOADING SEQUENCE OF OPERATION

Design Alaska, Inc. Page 1 of 4

The Fly Ash unloading operation transfers ash from the Storage Silo into a truck that will drive the ash to the on‐site landfill where it will be discarded. There are two unloading stations the operator can use for redundancy purposes. The procedure for unloading is the same for either station and is described in detail below.

APPLICABLE DRAWINGS

IA‐230 Fly Ash Dry Unloading Station Panel Layout

IA‐240 Fly Ash Wet Unloading Station Panel Layout

FLY ASH UNLOADING SEQUENCE OF OPERATION

Before any operations are performed on the panel, the Operator will bring in the truck and position it under the intended spout for the unload process. The Operator will then perform the following steps to fill the truck:

Place the Fan selector switch to the On position.

Place the Purge selector switch to the On position.

With both systems running the Operator will depress the Spout Down PB to lower the spout down into the truck. Operator will verify that the spout is alligned with the truck for proper filling.

[Operation with the Wet Station System Mode switch in Manual Position]

[Wet Station Only] With the spout down, Operator will start the Feeder motors by pressing the Feeder Start PB. Operator will allow feeders to run for a moment to clear any ash that is in the feeder box. Operator verifies that the Feeder is running from the lighted PB.

[Wet Station Only] With Feeder running the Operator then places the Knife Gate in the Auto position and it will open. Note, the knife gate will not open unless the PLC has a run contact from the Feeder motor.

[Dry Station Only] With the spout down, Operator places the Knife Gate in the Open position and it will open. Note the knife gate operates directly from the selector switch and has no interlocks.

System will start filling the truck. The Operator will monitor the fill time and the spout to insure no overfill. The new level sensor will turn the level full indicator light on the panel.

When the truck is full the Operator places the knife gate selector switch to the Close position and stops the ash feed.

Design Alaska, Inc. Page 2 of 4

[Wet Station Only] After allowing the Feeder box to clear out the Operator stops the Feeder by pressing the Feeder stop PB. Once the feed is off the Operator will press the vibrate PB to clear any ash in the spout into the truck.

After vibration timer is done the Operator will raise the spout by pressing the Spout Up PB unti the spout is raised up and clear of the truck.

With the spout raised the operator will place the Purge fan in the Off position and allow the vent fan to run for a moment before placing the Fan in the Off position.

[Operation with the Wet Station System Mode switch in Auto Position]

[Wet Station Only] With the spout down, Operator will start the system by pressing the System Start PB. The Feeder will start automatically and run for a moment to clear any ash that is in the feeder box. The Operator will see that the Feeder is running from the lighted PB.

[Wet Station Only] With Feeder running and the Knife Gate in the Auto position the PLC will open the knife gate. Note, the knife gate will not open unless the PLC has a run contact from the Feeder motor.

[Wet Station Only] System will start filling the truck. The PLC will monitor the fill time and the spout level switch to insure no overfill. The knife gate will close automatically when the level switch is made or the max fill time is exceeded.

[Wet Station Only] When the truck is full the level switch light should be on. After the knife gate is closed, this will stop the feed and allow the Feder box to empty out.

[Wet Station Only] After running the Feeder motor for an off delay of 45 seconds, the PLC will stop the Feeder motor. Once the feeder is off the Operator will press the vibrate PB to clear any ash in the spout into the truck.

[Wet Station Only] After vibration timer is done the Operator will raise the spout by pressing the Spout Up PB unti the spout is raised up and clear of the truck.

[Wet Station Only] With the spout raised the operator will place the Purge fan in the Off position and allow the vent fan to run for a moment before placing the Fan in the Off position.

[Wet Station Only] Any time durring the auto fill sequence, if the Operator presses the System Stop PB, the shutdown sequence will be innitiated in the same mannor as high level switch or max fill time exceeded.

FLY ASH UNLOADING CONTROL DESCRIPTION

As a companion to the Sequence of Operation, the control description describes the function of the remaining indications and switches as well as the operation when the sequence does not operate as expected. This description is is for both stations and identifies which station has the particular function.

Design Alaska, Inc. Page 3 of 4

[Wet Station Only] Emergency Stop PB – The E‐Stop PB on the Wet unload station will drop the power to the control wiring and place all equipment in their de‐energized fail state.

[Wet Station Only] Feeder Start/Stop PB’s ‐ The Feeder motor will be allowed to start if the system is on (No E‐Stops pressed). It is up to the Operator to make sure the spout is lowered and truck in place. There is an indicator light in the start PB that will indicate the run contact is made.

[Dry Station Only] Upper Silo Vibrators SS – The Upper Silo Vibrators selector switch is used to run the mechanical vibrators located in the upper section of the silo cone area. There is an indicator light in the switch that indicates they are on.

[Dry Station Only] Wet Unloader Vibrators SS – The Wet Unloader Vibrators selector switch is used to run the mechanical vibrators located in the wet side of the silo cone area. There is an indicator light in the switch that indicates they are on.

[Dry Station Only] Dry Unloader Vibrators SS – The Dry Unloader Vibrators selector switch is used to run the mechanical vibrators located in the dry side of the silo cone area. There is an indicator light in the switch that indicates they are on.

Spout Up PB – The Spout Up PB will run the spout motor to raise the spout untill a upper limit switch is made. There is an indicator light in the PB that will indicate the upper limit switch is made.

Level Probe Clean PB – The level probe clean PB will purge the level detector with compressed air to blow it out and clear any plugging that may occure to keep it functioning.

Vibrate PB – The Vibrate PB activate a mechanical vibrator that will shake any loose ash into the truck from the spout.

Spout Down PB ‐ The Spout Down PB will run the spout motor to lower the spout untill a lower limit switch is made. There is an indicator light in the PB that will indicate the lower limit switch is made.

Level Full IL – The level full indicator light will come on when the level sensor tip mounted on the spout is covered in ash.

Slack Cable Fault IL – The slack cable fault indicator light will come on when the slack cable limit switches are made indicating that one side of the spout may be hung up or not level.

[Wet Station Only] System Auto/Manual SS – The System A/M selector switch is used to put the feed system in automatic PLC control of the Knife Gate, Rotary motor and Feeder motor.

[Wet Station Only] System Start PB – The System Start PB will start the automatic PLC controlled feed sequence when the System Mode selector switch is in the Auto position.

Design Alaska, Inc. Page 4 of 4

[Wet Station Only] System Stop PB – The System Stop PB will stop the automatic PLC controlled feed sequence when the System Mode selector switch is in the Auto position.

Fan SS – The Fan selector switch is used to turn on the Vaculoader Exhaust Fan.

Purge SS – The Purge selector switch is used to activate the purge controller which will sequence the pilot solenoid valves on and off.

[Wet Station Only] Gate SS – The knife gate selector switch is used to start the feed of ash to the Feeder by placing it in the auto position. In auto if the run contact from the Feeder is on, it will open the knife gate to start the feed. If the run contact is lost then the knife gate will close. If the switch is placed in the close position it will close and stop ash feed to the Feeder.

[Dry Station Only] Gate SS – The knife gate selector switch is used to start the feed of ash to the spout by placing it in the open position. The switch directly controls the knife gate with no interlocks. If the switch is placed in the close position it will close and stop ash feed to the chute.

PULSE AIR PANEL SEQUENCE OF OPERATION

Design Alaska, Inc. Page 1 of 2

The Bottom Ash Storage Silo is where all the units transfer their bottom ash to by running the ash pulling operation. There are two pulse air panels at the top of the silo that are activated by the bottom ash PLC depending on which system is running. This hardwired signal will start the respective pulse air panel and will run through its cycle until the signal goes off. The operation of each panel is the same and is described in detail below.

APPLICABLE DRAWINGS

IA‐300 Pulse Air Panel #1 Layout IA‐310 Pulse Air Panel #2 Layout

PULSE AIR PANEL SEQUENCE OF OPERATION

Before any operations are performed, the Operator will have the pulse valve selector switch on the panel in the auto position and the system will wait for a run signal from the bottom ash PLC. The following will execute when a run signal is recieved:

A cycle timer will start that times to 90 seconds then restarts for the entire time the run signal is on.

The exhauster relief valve (ERV‐1) will be open from 3 sec to 75 sec of the cycle timer.

The vacuun breaker valve (VB‐1) will open from 75 sec to 80 sec of the cycle timer.

The discharge gate (DSG‐1) will open from 80 sec to 90 sec of the cycle timer.

Pulse Valves On (CR1) will be on as long as the run contact is on to provide feedback to PLC that it got the run signal.

Ash Feed (CR2) will be on if there is no (PDSH‐1 or PDSH‐2 for 10 sec) and cycle time is between 5 sec and 70 sec.

No Load Lockout (CR3) will be on when the cycle time is between 5 sec and 70 sec.

High DP Alarm (CR4) will be on if there is (PDSH‐1 or PDSH‐2 for 5 min)

Purge Valves (CR5) will be on when the cycle time is between 70 sec and 90 sec

When the run signal transitions to off from the Bottom Ash PLC the 90 sec cycle timer will continue for 30 more minutes and then stop cycling.

While the run signal is active the pulse valves will sequence through one at a time by firing the first valve for .1 sec then waiting 15 sec and doing the same to the next valve untill the last valve is fired them repeating this sequence untill the run signal is lost.

PULSE AIR PANEL SEQUENCE OF OPERATION

Design Alaska, Inc. Page 2 of 2

PULSE AIR PANEL CONTROL DESCRIPTION

As a companion to the Sequence of Operation, the control description describes the function of the remaining indications and switches as well as the operation when the sequence does not operate as expected. This description is is for both stations.

Pulse Valves SS – The Pulse Valves Selector switch is normally run in Auto position and will operate as described above. When placed in Manual the system will operate as described above without the run signal from the PLC and will not have the 30 minute off delay when placing it back into Auto.

High Diff Pressure IL ‐ The High Differential Pressure Indicator Light will be on when PDSH‐1 or PDSH‐2 are made for 5 min.

Pulse Valves Running IL – The Pulse Valves Running Indicator Light will be on when the cycle timer is running either in manual mode or in auto mode.

The north silo system is for fly ash unloading and is run with a combination of hardwired and PLC control that is Allen Bradley micrologic 1200. The following pictures show the operator pushbutton panels and the PLC panel.

The following mechanical timer schedule has been copied from the original drawing to supplement the description in hopes of better confirming the operation sequence.

Attachment B:

I/O Lists

Eielson AFB

New BA FA PLC I/O List

New Term Field

Old Address New Rack/Slot/Channel Description I/O Type Signal Cabinet Sig Term Pwr/Neut Term Cabinet Sig Term Pwr/Neut Term Cabinet Sig Term Pwr/Neut Term Ext Pwr Cabinet/Device Sig Term Pwr/Neut Term Device Sig TermPwr/Neut Term

I:011/04 01-02-00 Bag Filter 1 High Temperature INF By UCC1 DI 120 VAC BA2 EATB4-25 EATB4-24 PLC TB102-00 TB102-L FTB2 TB-01 TB-02 BTS-1 NC C

I:011/05 01-02-01 Bag Filter 1 On DI 120 VAC BA2 EATB4-17 EATB4-16 PLC TB102-01 TB102-L FTB1 TB-77 TB-88 PA1 TB1-23 TB1-23A

I:011/06 01-02-02 Bag Filter 1 Ash Feed DI 120 VAC BA2 EATB4-18 EATB4-16 PLC TB102-02 TB102-L FTB1 TB-80 TB-88 PA1 TB1-23D TB1-23A

I:011/07 01-02-03 Bag Filter 1 No Load Lock-Out DI 120 VAC BA2 EATB4-19 EATB4-16 PLC TB102-03 TB102-L FTB1 TB-84 TB-88 PA1 TB1-25A TB1-23A

I:011/10 01-02-04 Bag Filter 1 High Differential Alarm DI 120 VAC BA2 EATB4-20 EATB4-16 PLC TB102-04 TB102-L FTB1 TB-89 TB-88 PA1 TB1-25E TB1-23A

I:011/11 01-02-05 Bag Filter 1 Purge Valves DI 120 VAC BA2 EATB4-21 EATB4-16 PLC TB102-05 TB102-L FTB1 TB-82 TB-88 PA1 TB1-23F TB1-23A

I:011/12 01-02-06 Bag Filter 1 Dust Collector DO-I DI 120 VAC BA2 EATB2-45 EATB2-44 PLC TB102-06 TB102-L FTB1 TB-64 TB-65 PA1 TB1-6 TB1-7

I:011/14 01-02-07 Exhauster 1 High Temperature DI 120 VAC BA2 EATB4-27 EATB4-28 PLC TB102-07 TB102-L FTB2 TB-03 TB-04 TS-1 NC C

I:011/15 01-02-08 Exhauster 1 On DI 120 VAC BA2 EATB4-29 EATB4-28 PLC TB102-08 TB102-L FTB2 TB-05 TB-04 MCC NO C

I:013/04 01-03-00 Boiler 6 Bag Filter 2 High Temperature DI 120 VAC BA2 EATB4-43 EATB4-42 PLC TB103-00 TB103-L FTB2 TB-7 TB-6 PA2 TB-2 TB-1 BTS-2 NC C

I:013/05 01-03-01 Bag Filter 2 On DI 120 VAC BA2 EATB4-37 EATB4-36 PLC TB103-01 TB103-L FTB2 TB-9 TB-8 PA2 EBTB1-21 EBTB1-20

I:013/06 01-03-02 Bag Filter 2 Ash Feed DI 120 VAC BA2 EATB4-38 EATB4-36 PLC TB103-02 TB103-L FTB2 TB-10 TB-8 PA2 EBTB1-23 EBTB1-20

I:013/07 01-03-03 Bag Filter 2 No Load Lock-Out DI 120 VAC BA2 EATB4-39 EATB4-36 PLC TB103-03 TB103-L FTB2 TB-11 TB-8 PA2 EBTB1-25 EBTB1-20

I:013/10 01-03-04 Bag Filter 2 High Differential Alarm DI 120 VAC BA2 EATB4-40 EATB4-36 PLC TB103-04 TB103-L FTB2 TB-12 TB-8 PA2 EBTB1-27 EBTB1-20

I:013/11 01-03-05 Bag Filter 2 Purge Valves DI 120 VAC BA2 EATB4-41 EATB4-36 PLC TB103-05 TB103-L FTB2 TB-13 TB-8 PA2 EBTB1-29 EBTB1-20

I:013/12 01-03-06 Bag Filter 2 Dust Detector DO-2 DI 120 VAC BA2 EATB3-45 EATB3-44 PLC TB103-06 TB103-L FTB2 TB-19 TB-18 PA2 TB-4 TB-3 DD-2 TB-6 TB-7

I:013/14 01-03-07 Exhauseter 2 High Temperature DI 120 VAC BA2 EATB4-44 EATB4-45 PLC TB103-07 TB103-L FTB2 TB-23 TB-22 TS-2 NC C

I:013/15 01-03-08 Exhauseter 2 On DI 120 VAC BA2 EATB4-46 EATB4-45 PLC TB103-08 TB103-L FTB2 TB-25 TB-24 CH MCC NO C

I:014/05 01-03-09 Bin Level Probe DI 120 VAC BA2 EATB1-14 EATB1-13/15 PLC TB103-09 TB103-L FTB2 TB-27 TB-26/28 PA2 TB-12 TB-11/13 LSH-P-1 C/NC L1/L2

I:030/02 01-04-00 Boiler #3 Economizer/Boiler Hopper Row Gate AG3-3 Closed DI 120 VAC BA1 EETB1-18 EETB1-29 PLC TB104-00 TB104-L BA1 EETB1-18 EETB1-29 ZSC-AG3-3 D C

I:030/03 01-04-01 Boiler #3 Economizer/Boiler Hopper Row Gate AG3-3 Open DI 120 VAC BA1 EETB1-19 EETB1-29 PLC TB104-01 TB104-L BA1 EETB1-19 EETB1-29 ZSO-AG3-3 D C

I:030/04 01-04-02 Boiler #3 Bottom Ash Hopper A Lift Door XV9A Closed DI 120 VAC BA1 EETB1-33 EETB1-37 PLC TB104-02 TB104-L BA1 EETB1-33 EETB1-37 ZSC-XV9A D C

I:030/05 01-04-03 Boiler #3 Bottom Ash Hopper A Lift Door XV9A Open DI 120 VAC BA1 EETB1-34 EETB1-37 PLC TB104-03 TB104-L BA1 EETB1-34 EETB1-37 ZSO-XV9A D C

I:030/06 01-04-04 Boiler #3 Bottom Ash Hopper A Crusher Forward DI 120 VAC BA1 EETB2-1 EETB2-7 PLC TB104-04 TB104-L BA1 EETB2-1 EETB2-7 MCC1B1 NO C

I:030/07 01-04-05 Boiler #3 Bottom Ash Hopper A Crusher Reverse DI 120 VAC BA1 EETB2-2 EETB2-7 PLC TB104-05 TB104-L BA1 EETB2-2 EETB2-7 MCC1B1 NO C

I:030/10 01-04-06 Boiler #3 Bottom Ash Hopper A Local Station Crusher Auto DI 120 VAC BA1 EETB2-9 EETB2-15 PLC TB104-06 TB104-L BA1 EETB2-9 EETB2-15 LOCAL STN A EFTB1-4 EFTB1-3

I:030/11 01-04-07 Boiler #3 Bottom Ash Hopper A Local Station Crusher Manual DI 120 VAC BA1 EETB2-10 EETB2-15 PLC TB104-07 TB104-L BA1 EETB2-10 EETB2-15 LOCAL STN A EFTB1-5 EFTB1-3

I:030/12 01-04-08 Boiler #3 Bottom Ash Hopper A Local Station Crusher Forward DI 120 VAC BA1 EETB2-11 EETB2-15 PLC TB104-08 TB104-L BA1 EETB2-11 EETB2-15 LOCAL STN A EFTB1-6 EFTB1-3

I:030/13 01-04-09 Boiler #3 Bottom Ash Hopper A Local Station Crusher Reverse DI 120 VAC BA1 EETB2-12 EETB2-15 PLC TB104-09 TB104-L BA1 EETB2-12 EETB2-15 LOCAL STN A EFTB1-7 EFTB1-3

I:030/14 01-04-10 Boiler #3 Bottom Ash Hopper A Local Station Lift Door Auto DI 120 VAC BA1 EETB2-13 EETB2-15 PLC TB104-10 TB104-L BA1 EETB2-13 EETB2-15 LOCAL STN A EFTB1-8 EFTB1-3

I:030/15 01-04-11 Boiler #3 Bottom Ash Hopper A Local Station Lift Door Open DI 120 VAC BA1 EETB2-14 EETB2-15 PLC TB104-11 TB104-L BA1 EETB2-14 EETB2-15 LOCAL STN A EFTB1-9 EFTB1-3

I:030/16 01-05-00 Boiler #3 Bottom Ash Hopper B Lift Door XV98 Closed DI 120 VAC BA1 EETB2-18 EETB2-22 PLC TB105-00 TB105-L BA1 EETB2-18 EETB2-22 ZSC-XV9B D C

I:030/17 01-05-01 Boiler #3 Bottom Ash Hopper B Lift Door XV98 Open DI 120 VAC BA1 EETB2-19 EETB2-22 PLC TB105-01 TB105-L BA1 EETB2-19 EETB2-22 ZSO-XV9B D C

I:031/00 01-05-02 Boiler #3 Bottom Ash Hopper B Crusher Forward DI 120 VAC BA1 EETB2-26 EETB2-32 PLC TB105-02 TB105-L BA1 EETB2-26 EETB2-32 MCC1B1 NO C

I:031/01 01-05-03 Boiler #3 Bottom Ash Hopper B Crusher Reverse DI 120 VAC BA1 EETB2-27 EETB2-32 PLC TB105-03 TB105-L BA1 EETB2-27 EETB2-32 MCC1B1 NO C

I:031/02 01-05-04 Boiler #3 Bottom Ash Hopper B Local Station Crusher Auto DI 120 VAC BA1 EETB2-34 EETB2-40 PLC TB105-04 TB105-L BA1 EETB2-34 EETB2-40 LOCAL STN B EGTB1-4 EGTB1-3

I:031/03 01-05-05 Boiler #3 Bottom Ash Hopper B Local Station Crusher Manual DI 120 VAC BA1 EETB2-35 EETB2-40 PLC TB105-05 TB105-L BA1 EETB2-35 EETB2-40 LOCAL STN B EGTB1-5 EGTB1-3

I:031/04 01-05-06 Boiler #3 Bottom Ash Hopper B Local Station Crusher Forward DI 120 VAC BA1 EETB2-36 EETB2-40 PLC TB105-06 TB105-L BA1 EETB2-36 EETB2-40 LOCAL STN B EGTB1-6 EGTB1-3

I:031/05 01-05-07 Boiler #3 Bottom Ash Hopper B Local Station Crusher Reverse DI 120 VAC BA1 EETB2-37 EETB2-40 PLC TB105-07 TB105-L BA1 EETB2-37 EETB2-40 LOCAL STN B EGTB1-7 EGTB1-3

I:031/06 01-05-08 Boiler #3 Bottom Ash Hopper B Local Station Lift Door Auto DI 120 VAC BA1 EETB2-38 EETB2-40 PLC TB105-08 TB105-L BA1 EETB2-38 EETB2-40 LOCAL STN B EGTB1-8 EGTB1-3

I:031/07 01-05-09 Boiler #3 Bottom Ash Hopper B Local Station Lift Door Open DI 120 VAC BA1 EETB2-39 EETB2-40 PLC TB105-09 TB105-L BA1 EETB2-39 EETB2-40 LOCAL STN B EGTB1-9 EGTB1-3

I:031/12 01-05-10 Boiler #1 Economizer/Boiler Hopper Row Gate AG1-3 Closed DI 120 VAC BA1 EETB3-10 EETB3-21 PLC TB105-10 TB105-L BA1 EETB3-10 EETB3-21 ZSC-AG1-3 D C

I:031/13 01-05-11 Boiler #1 Economizer/Boiler Hopper Row Gate AG1-3 Open DI 120 VAC BA1 EETB3-11 EETB3-21 PLC TB105-11 TB105-L BA1 EETB3-11 EETB3-21 ZSO-AG1-3 D C

I:033/02 01-05-12 Boiler #2 Economizer/Boiler Hopper Row Gate AG2-3 Closed DI 120 VAC BA1 EETB5-10 EETB5-21 PLC TB105-12 TB105-L BA1 EETB5-10 EETB5-21 ZSC-AG2-3 D C

I:033/03 01-05-13 Boiler #2 Economizer/Boiler Hopper Row Gate AG2-3 Open DI 120 VAC BA1 EETB5-11 EETB5-21 PLC TB105-13 TB105-L BA1 EETB5-11 EETB5-21 ZSO-AG2-3 D C

I:041/00 01-06-00 Boiler #3 Bottom Ash Row Pressure Switch DI 120 VAC BA1 EETB2-41 EETB2-42 PLC TB106-00 TB106-L BA1 EETB2-41 EETB2-42 PDS-3 NO C

I:042/02 01-06-01 Boiler #2 Baghouse Low Differential Pressure Switch DI 120 VAC BA1 EETB5-80 EETB5-81 PLC TB106-01 TB106-L BA1 EETB5-80 EETB5-81 PDSL-2 NC C

I:042/03 01-06-02 Boiler #2 Baghouse High Differential Pressure Switch DI 120 VAC BA1 EETB5-82 EETB5-81 PLC TB106-02 TB106-L BA1 EETB5-82 EETB5-81 PDSH-2 NO C

I:042/04 01-06-03 Boiler #2 Baghouse High Temperature Pressure Switch DI 120 VAC BA1 EETB5-84 EETB5-81 PLC TB106-03 TB106-L BA1 EETB5-84 EETB5-81 TSH-2 NO C

I:042/05 01-06-04 Boiler #3 Baghouse Low Differential Pressure Switch DI 120 VAC BA1 EETB8-89 EETB8-90 PLC TB106-04 TB106-L BA1 EETB8-89 EETB8-90 PDSL-3 NC C

I:042/06 01-06-05 Boiler #3 Baghouse High Differential Pressure Switch DI 120 VAC BA1 EETB8-91 EETB8-90 PLC TB106-05 TB106-L BA1 EETB8-91 EETB8-90 PDSH-3 NO C

I:042/07 01-06-06 Boiler #3 Baghouse High Temperature Pressure Switch DI 120 VAC BA1 EETB8-93 EETB8-94 PLC TB106-06 TB106-L BA1 EETB8-93 EETB8-94 TSH-3 NO C

I:042/17 01-06-07 BA Master Relay On - BA System 120 VAC Power Available DI 120 VAC BA1 PLC TB106-07 TB106-L PLC/BA MCR NO C

01-06-08 Bottom Ash Estop Pressed DI 120VAC PLC TB106-08 TB106-L PLC/BA ESTOP NO C

O:016/00 01-08-00 Boiler 1 AG-2 Solenoid Valve DO 120 VAC BA2 EATB2-1 EATB2-9 PLC TB108-00 TB108-N FTB1 TB-1 TB-9 SV-AG-2

O:016/01 01-08-01 Boiler 1 INI-1 Solenoid Valve DO 120 VAC BA2 EATB2-2 EATB2-9 PLC TB108-01 TB108-N FTB1 TB-2 TB-9 SV-IN1-1

O:016/02 01-08-02 Boiler 1 INI-2 Solenoid Valve DO 120 VAC BA2 EATB2-3 EATB2-9 PLC TB108-02 TB108-N FTB1 TB-3 TB-9 SV-IN1-2

O:016/03 01-08-03 Boiler 1 INI-3 Solenoid Valve DO 120 VAC BA2 EATB2-4 EATB2-9 PLC TB108-03 TB108-N FTB1 TB-4 TB-9 SV-IN1-3

O:016/04 01-08-04 Boiler 1 AG1-1 Solenoid Valve DO 120 VAC BA2 EATB2-5 EATB2-9 PLC TB108-04 TB108-N FTB1 TB-5 TB-9 SV-AG1-1

O:016/05 01-08-05 Boiler 1 INI-4 Solenoid Valve DO 120 VAC BA2 EATB2-6 EATB2-9 PLC TB108-05 TB108-N FTB1 TB-6 TB-9 SV-IN1-4

O:016/06 01-08-06 Boiler 1 INI-5 Solenoid Valve DO 120 VAC BA2 EATB2-7 EATB2-9 PLC TB108-06 TB108-N FTB1 TB-7 TB-9 SV-IN1-5

O:016/07 01-08-07 Boiler 1 AG-I-2 Solenoid Valves DO 120 VAC BA2 EATB2-8 EATB2-9 PLC TB108-07 TB108-N FTB1 TB-8 TB-9 SV-AG1-2

O:016/11 01-08-08 Boiler 2 AG-3 Solenoid Valve DO 120 VAC BA2 EATB2-12 EATB2-20 PLC TB108-08 TB108-N FTB1 TB-11 TB-19 SV-AG-3

O:016/12 01-08-09 Boiler 2 IN2-1 Solenoid Valve DO 120 VAC BA2 EATB2-13 EATB2-20 PLC TB108-09 TB108-N FTB1 TB-12 TB-19 SV-IN2-1

O:016/13 01-08-10 Boiler 2 IN2-2 Solenoid Valve DO 120 VAC BA2 EATB2-14 EATB2-20 PLC TB108-10 TB108-N FTB1 TB-13 TB-19 SV-IN2-2

O:016/14 01-08-11 Boiler 2 IN2-3 Solenoid Valve DO 120 VAC BA2 EATB2-15 EATB2-20 PLC TB108-11 TB108-N FTB1 TB-14 TB-19 SV-IN2-3

O:016/15 01-08-12 Boiler 2 AG2-1 Solenoid Valve DO 120 VAC BA2 EATB2-16 EATB2-20 PLC TB108-12 TB108-N FTB1 TB-15 TB-19 SV-AG2-1

O:016/16 01-08-13 Boiler 2 IN2-4 Solenoid Valve DO 120 VAC BA2 EATB2-17 EATB2-20 PLC TB108-13 TB108-N FTB1 TB-16 TB-19 SV-IN2-4

O:016/17 01-08-14 Boiler 2 IN2-5 Solenoid Valve DO 120 VAC BA2 EATB2-18 EATB2-20 PLC TB108-14 TB108-N FTB1 TB-17 TB-19 SV-IN2-5

O:017/00 01-08-15 Boiler 2 AG2-2 Solenoid Valves DO 120 VAC BA2 EATB2-19 EATB2-20 PLC TB108-15 TB108-N FTB1 TB-18 TB-19 SV-AG2-2

O:017/02 01-09-00 Boiler 3 IN3-1 Solenoid Valve DO 120 VAC BA2 EATB2-25 EATB2-32 PLC TB109-00 TB109-N FTB1 TB-21 TB-28 SV-IN3-1

O:017/03 01-09-01 Boiler 3 IN3-2 Solenoid Valve DO 120 VAC BA2 EATB2-26 EATB2-32 PLC TB109-01 TB109-N FTB1 TB-22 TB-28 SV-IN3-2

O:017/04 01-09-02 Boiler 3 IN3-3 Solenoid Valve DO 120 VAC BA2 EATB2-27 EATB2-32 PLC TB109-02 TB109-N FTB1 TB-23 TB-28 SV-IN3-3

O:017/05 01-09-03 Boiler 3 AG3-1 Solenoid Valve DO 120 VAC BA2 EATB2-28 EATB2-32 PLC TB109-03 TB109-N FTB1 TB-24 TB-28 SV-AG3-1

O:017/06 01-09-04 Boiler 3 IN3-4 Solenoid Valve DO 120 VAC BA2 EATB2-29 EATB2-32 PLC TB109-04 TB109-N FTB1 TB-25 TB-28 SV-IN3-4

O:017/07 01-09-05 Boiler 3 IN3-5 Solenoid Valve DO 120 VAC BA2 EATB2-30 EATB2-32 PLC TB109-05 TB109-N FTB1 TB-26 TB-28 SV-IN3-5

O:017/10 01-09-06 Boiler 3 AG3-2 Solenoid Valves DO 120 VAC BA2 EATB2-31 EATB2-32 PLC TB109-06 TB109-N FTB1 TB-27 TB-28 SV-AG3-2

O:017/12 01-09-07 Boiler 4 AG4-3 Solenoid Valves DO 120 VAC BA2 EATB3-37 EATB3-9 PLC TB109-07 TB109-N FTB2 TB-30 TB-32 SV-AG4-3

Current Term Field TermMarshalling Term

Old Address New Rack/Slot/Channel Description I/O Type Signal Cabinet Sig Term Pwr/Neut Term Cabinet Sig Term Pwr/Neut Term Cabinet Sig Term Pwr/Neut Term Ext Pwr Cabinet/Device Sig Term Pwr/Neut Term Device Sig TermPwr/Neut Term

O:017/13 01-09-08 Boiler 4 IN4-1 Solenoid Valve DO 120 VAC BA2 EATB3-2 EATB3-9 PLC TB109-08 TB109-N FTB1 TB-31 TB-38 SV-IN4-1

O:017/14 01-09-09 Boiler 4 IN4-2 Solenoid Valve DO 120 VAC BA2 EATB3-3 EATB3-9 PLC TB109-09 TB109-N FTB1 TB-32 TB-38 SV-IN4-2

O:017/15 01-09-10 Boiler 4 IN4-3 Solenoid Valve DO 120 VAC BA2 EATB3-4 EATB3-9 PLC TB109-10 TB109-N FTB1 TB-33 TB-38 SV-IN4-3

O:017/16 01-09-11 Boiler 4 AG4-1 Solenoid Valves DO 120 VAC BA2 EATB3-5 EATB3-9 PLC TB109-11 TB109-N FTB1 TB-34 TB-38 SV-AG4-1

01-09-12 Boiler 4 AX-3 Solenoid Valves DO 120 VAC BA2 EATB3-5 EATB3-9 PLC TB109-12 TB109-N FTB2 TB-31 TB-32 SV-AX-3

O:017/17 01-09-13 Boiler 4 IN4-4 Solenoid Valve DO 120 VAC BA2 EATB3-6 EATB3-9 PLC TB109-13 TB109-N FTB1 TB-35 TB-38 SV-IN4-4

O:020/00 01-09-14 Boiler 4 IN4-5 Solenoid Valve DO 120 VAC BA2 EATB3-7 EATB3-9 PLC TB109-14 TB109-N FTB1 TB-36 TB-38 SV-IN4-5

O:020/01 01-09-15 Boiler 4 AG4-2 Solenoid Valves DO 120 VAC BA2 EATB3-8 EATB3-9 PLC TB109-15 TB109-N FTB1 TB-37 TB-38 SV-AG4-2

O:020/03 01-10-00 Boiler 5 AG-1 Solenoid Valves DO 120 VAC BA2 EATB3-12 EATB3-22 PLC TB110-00 TB110-N FTB1 TB-41 TB-51 SV-AG-1

O:020/10 01-10-01 Boiler 5 AG5-1 Solenoid Valve DO 120 VAC BA2 EATB3-17 EATB3-22 PLC TB110-01 TB110-N FTB1 TB-46 TB-51 SV-AG5-1

O:020/11 01-10-02 Boiler 5 IN5-4 Solenoid Valve DO 120 VAC BA2 EATB3-18 EATB3-22 PLC TB110-02 TB110-N FTB1 TB-47 TB-51 SV-IN5-4

O:021/02 01-10-03 Boiler 6 AG6-1 Solenoid Valve DO 120 VAC BA2 EATB3-29 PLC TB110-03 TB110-N FTB1 TB-57 TB-62 SV-AG6-1

O:021/03 01-10-04 Boiler 6 IN6-4 Solenoid Valve DO 120 VAC BA2 EATB3-30 PLC TB110-04 TB110-N FTB1 TB-58 TB-62 SV-IN6-4

O:021/06 01-10-05 Boiler 6 AG6-2 Solenoid Valves DO 120 VAC BA2 EATB3-33 PLC TB110-05 TB110-N FTB1 TB-61 TB-62 SV-AG6-2

O:021/11 01-10-07 Common AG-9 System Gate Solenoid Valves DO 120 VAC BA2 EATB2-37 PLC TB110-07 TB110-N FTB1 TB-29 ??? SV-AG-9

O:022/00 01-10-08 Exhauster Crossover Valves IG-1 (N/O) Solenoid Valve DO 120 VAC BA2 EATB1-34 EATB1-39 PLC TB110-08 TB110-N FTB2 TB-34 TB-33 SV-IG-1

O:022/01 01-10-09 Exhauster Crossover Valves IG-2 (N/O) Solenoid Valve DO 120 VAC BA2 EATB1-35 EATB1-39 PLC TB110-09 TB110-N FTB2 TB-35 TB-33 SV-IG-2

O:022/02 01-10-10 Exhauster Crossover Valves IG-3 Solenoid Valve DO 120 VAC BA2 EATB1-36 EATB1-39 PLC TB110-10 TB110-N FTB2 TB-36 TB-33 SV-IG-3

O:022/03 01-10-11 Exhauster Crossover Valves IG-4 Solenoid Valve DO 120 VAC BA2 EATB1-37 EATB1-39 PLC TB110-11 TB110-N FTB2 TB-37 TB-33 SV-IG-4

O:022/04 01-10-12 Exhauster Crossover Valves IG-5 Solenoid Valve DO 120 VAC BA2 EATB1-38 EATB1-39 PLC TB110-12 TB110-N FTB2 TB-38 TB-33 SV-IG-5

Hardwired 01-10-13 Boiler 2/4 Tie Slide Gate (Currently HW) DO 120 VAC PLC TB110-13 TB110-N SV-AG-24TIE

O:023/11 01-11-00 Common Equipment Bin Vent Filter DO 120 VAC BA2 EATB1-16 EATB1-15 PLC TB111-00 TB111-N FTB2 TB-29 TB-28 PA2 TB-10 TB-9 VF-1

O:023/13 01-11-01 Vacuum Broken Lights Boilers 1/2/3 DO 120 VAC BA2 EATB2-40 EATB2-41 PLC TB111-01 TB111-N LT-1/2/3

O:023/15 01-11-02 Vacuum Broken Lights Boiler 4/5/6 DO 120 VAC BA2 EATB3-40 EATB3-41 PLC TB111-02 TB111-N LT-4/5/6

O:023/17 01-11-03 Vacuum Broken Lights Common Alarm Relay EAK6/EECR5 DO 120 VAC BA2 EATB1-9 NO EATB1-10 NO PLC TB111-03 COIL TB111-N COIL BA1 EETB3-35 NO EETB3-36 NO FTB2 TB-52 NO TB-53 NO CDMA

O:024/00 01-11-04 System 1 Controls Bag Filter Relay EAK2/EECR6 DO 120 VAC BA2 EATB4-22 NO EATB4-23 NO PLC TB111-04 COIL TB111-N COIL FTB1 TB-75 NO TB-74 NO TB-71/72 PA1 TB1-1 TB1-L11F

O:024/01 01-11-05 System 1 Controls Exhauster Relay EAK3/EECR7 DO 120 VAC BA2 EATB4-30 NO EATB4-31 NO PLC TB111-05 COIL TB111-N COIL BA1 EETB4-20 NO EETB4-21 NO FTB2 TB-46 NO TB-47 NO MCC

O:024/02 01-11-06 System 1 Controls Dust Detector D0-1 DO 120 VAC BA2 EATB2-46 EATB2-47 PLC TB111-06 TB111-N FTB1 TB-66 TB-67 DO-1 TB-12 TB-11

O:024/03 01-11-07 System 1 Controls AX-1 Auxiliary Air Valve DO 120 VAC BA2 EATB2-48 EATB2-47 PLC TB111-07 TB111-N FTB2 TB-41 TB-40 PA2 TB-17 TB-16 SV-AX-1

O:024/04 01-11-08 System 1 Controls Exhuaster Relief Valve Relay EAK7/EECR8 DO 120 VAC BA2 EATB4-14 NO EATB4-15 NO PLC TB111-08 COIL TB111-N COIL FTB1 TB-76 NO TB-74 NO PA1 TB1-22 TB1-L11F

O:024/06 01-11-09 System 2 Controls Bag Filter Relay EAK4/EECR9 DO 120 VAC BA2 EATB4-35 NO EATB4-36 NO PLC TB111-09 COIL TB111-N COIL BA1 EETB5-35 NO EETB5-36 NO FTB2 TB-48 NO TB-49 NO PA2 EBTB1-19 EBTB1-20

O:024/07 01-11-10 System 2 Controls Exhauster Relay EAK5/EECR10 DO 120 VAC BA2 EATB4-48 NO EATB4-47 NO PLC TB111-10 COIL TB111-N COIL BA1 EETB5-37 NO EETB5-38 NO FTB2 TB-50 NO TB-51 NO CH MCC

O:024/10 01-11-11 System 2 Controls Dust Detector D0-2 DO 120 VAC BA2 EATB3-46 EATB3-47 PLC TB111-11 TB111-N FTB2 TB-16 TB-17 PA2 TB-5 TB-6 DO-2 TB-12 TB-11

O:024/11 01-11-12 System 2 Controls AX-2 Auxiliary Air Valve DO 120 VAC BA2 EATB3-48 EATB3-47 PLC TB111-12 TB111-N FTB2 TB-43 TB-42 PA2 TB-8 TB-7 SV-AX-2

O:024/12 01-11-13 System 2 Controls Exhauster Relief Valve Relay EAK8/EECR11 DO 120 VAC BA2 EATB4-33 NO EATB4-34 NO PLC TB111-13 COIL TB111-N COIL BA1 EETB5-61 NO EETB5-62 NO FTB2 TB-54 NO TB-55 NO PA2 EBTB1-18 EBTB1-16

O:043/03 01-12-00 Boiler #3 Economizer/Boiler Row Gate AG3-3 Solenoid Valve DO 120 VAC BA1 EETB1-20 EETB1-30 PLC TB112-00 TB112-N BA1 EETB1-20 EETB1-30 SV-AG3-3

O:043/04 01-12-01 Boiler #3 Economizer/Boiler Row Purge Air Solenoid Valve DO 120 VAC BA1 EETB1-21 EETB1-30 PLC TB112-01 TB112-N BA1 EETB1-21 EETB1-30 SV-PAV3

O:043/05 01-12-02 Boiler #3 Economizer/Boiler Row Intake IN3-6 Solenoid Valve DO 120 VAC BA1 EETB1-22 EETB1-30 PLC TB112-02 TB112-N BA1 EETB1-22 EETB1-30 SV-IN3-6

O:043/06 01-12-03 Boiler #3 Economizer/Boiler Row Intake IN3-7 Solenoid Valve DO 120 VAC BA1 EETB1-23 EETB1-30 PLC TB112-03 TB112-N BA1 EETB1-23 EETB1-30 SV-IN3-7

O:043/07 01-12-04 Boiler #3 Economizer/Boiler Row Intake IN3-8 Solenoid Valve DO 120 VAC BA1 EETB1-24 EETB1-30 PLC TB112-04 TB112-N BA1 EETB1-24 EETB1-30 SV-IN3-8

O:043/10 01-12-05 Boiler #3 Economizer/Boiler Row Intake IN3-9 Solenoid Valve DO 120 VAC BA1 EETB1-25 EETB1-30 PLC TB112-05 TB112-N BA1 EETB1-25 EETB1-30 SV-IN3-9

O:043/11 01-12-06 Boiler #3 Economizer/Boiler Row Intake IN3-10 Solenoid Valve DO 120 VAC BA1 EETB1-26 EETB1-30 PLC TB112-06 TB112-N BA1 EETB1-26 EETB1-30 SV-IN3-10

O:043/12 01-12-07 Boiler #3 Economizer/Boiler Row Intake IN3-11 Solenoid Valve DO 120 VAC BA1 EETB1-27 EETB1-30 PLC TB112-07 TB112-N BA1 EETB1-27 EETB1-30 SV-IN3-11

O:043/13 01-12-08 Boiler #3 Economizer/Boiler Row Intake IN3-12 Solenoid Valve DO 120 VAC BA1 EETB1-28 EETB1-30 PLC TB112-08 TB112-N BA1 EETB1-28 EETB1-30 SV-IN3-12

O:043/14 01-12-09 Boiler #3 Bottom Ash Row Hopper A Lift Door XV9A Solenoid Valve DO 120 VAC BA1 EETB1-35 EETB1-38 PLC TB112-09 TB112-N BA1 EETB1-35 EETB1-38 SV-XV9A

O:043/15 01-12-10 Boiler #3 Bottom Ash Row Intake IN3-13 Solenoid Valve DO 120…