PREFERRED UTILITIES MFG CORP South St. Danbury CT T: (203) F: (203) www. PREFERRED-MFG.com

Overview  Introduction  Combustion Experience  ZP Oxygen Analyzer  PCC-III Multiple Loop Controller  Pricing  Summary

In-Situ Oxygen Probe No separate analyzer, one less item to mount Field replaceable probe Only one conduit to stack.

In-Situ Oxygen Probe  Proven Reliable  Sensing element has been proven reliable in 100s of installation over the last 10 years  No Reference Air  The probe uses ambient air as a reference.  Competitors use instrument air and run the risk of element cracking due to water  Automated, menu driven pushbutton calibration.  Fully automatic calibration package available.

In-Situ Oxygen Probe  Thick cell  Avoids premature cell failures  Ceramic heater  Provides reliable long life  Complete detailed diagnostics  Automatic impedance checking  Alarms when time to recalibrate  Alarms when reaching end of cell life  Optional fuel gas temperature element / T/C input

Jackshaft Control with Air Trim

Air Trim

Fuel Trim

Combustion Experience 25 years of Combustion Control Experience…  Third Generation Digital Controller  2400 PCC II/III Controllers Installed Exclusively in Combustion Control Applications  38 SCADA/Flex Projects  640 Rotary Cup Burner Projects

Combustion Experience JC Boiler Control & Monitoring Projects….  > 8000Boilers  Numbers from 1998.…  324Smoke Opacity Monitors  243Flue Gas Temperature Monitors  226Draft Indicators  212Draft Controllers  91Lead Lag Controllers

Combustion Experience PCC II/III Combustion Control Projects....  967Boilers  624 Jackshaft Controlled Boilers  127Parallel Positioning Controlled Boilers  103Metering Controlled Boilers  351Oxygen Trim Systems  13EPA Compliant Opacity Monitors

PCC-III Combustion Experience Boiler Specific...  Operator Friendly  F(x) Characterizers with “Learn” Mode  Built In Boiler Efficiency  Constructed For Boiler Front Mounting  120 Vac Inputs for Direct BMS Interface  Triac Outputs to Drive Electric Actuators  Free Standard Combustion Blockware There are many digital controller manufacturers, but NONE have Preferred’s in-depth and ongoing combustion control experience.

PCC-III - Construction Constructed For Boiler Front Mounting...  Weather Proof / Rain Proof Construction  7 3/4” Deep Case For Easy Mounting in Standard Burner Panels  32 to 120 deg F rating for Continuous Operation  Built-in Surge Suppressor, and Vac Input Power Rating for Industrial Applications

PCC-III - Display English Used For Operation & Configuration...  16 character process variable and alarm description messages  10 point first out alarm annunciator  Intuitive Bargraphs  User Configurable Pushbuttons Large Displays & Pushbuttons

PCC-III - Input / Output Designed For Boilers...  One PCC-III with integral I/O is capable of:  A Dual Fuel, Fully Metered with Oxygen Trim Control Scheme!  Standard 120 Vac Inputs, 8 Amp Relay Outputs for Easy BMS Interfacing  215 mA 24 Vdc Power Supply for Transmitters  Triac Output Option Card for Electric Actuators  Standard Optically Isolated RS485 Modbus

PCC-III - Input / Output  18 Input / Outputs Standard!  With Option Cards, Up to:  15 Analog Inputs  6 Analog Outputs  Vac Discrete Inputs  Partial List of Option Card Combinations:

PCC-III - Input / Output Five (5) Discrete Inputs, 120Vac, Opto-Isolated Isolated RS 485; Four (4) Discrete Outputs, 24Vdc, 200mA; Two (2) Analog Outputs, mAdc, 750 Ohm; Five (5) Analog Inputs, mAdc, 1 - 5Vdc 120 VAC Power Input Two (2) Relay Outputs, 120 Vac 8 Amps. Max One (1) Pair Triac Outputs, 2A, Vac Option Slot 3 Board CPU Board 33 Option Slot CPU Board PCC-III REAR VIEW "S” Board 120 Vac “L” & “N” Commons Option Slot 1 and 2 Board (s) Five (5) Analog Inputs, mAdc, Vdc "A" Board Three (3) Isolated Analog Inputs, mAdc, Vdc "B" Board Three (3) Analog Inputs mAdc, Vdc Two (2) Analog Outputs, mAdc, 750 Ohm "F" Board Two (2) Pair Triac Outputs, 2A, Vac Two (2) Analog Inputs Pot, mAdc, Vdc "G" Board Two (2) Relay Outputs, 120 Vac, 8 Amps. Max Four (4) Discrete Inputs, 120Vac, Opto-Isolated "J" Board

PCC-III - Configuration English Used For Operation & Configuration...  Intuitive, Easy to configure “Soft Wired” Blockware  Flexible Configuration Methods  No Cost - Front Panel Edit Menus  Low Cost - PC3_Edit ™ Spreadsheet  Full Featured - PC3_Draw ™ CAD  RS232 Up/Download to Laptops

PCC-III - Front Panel Editing English Used For Operation & Configuration… Edit keys Edit Display Indicators Edit Displays

PCC-III - Front Panel Edit Menus QUICK MENU EDIT A BLOCK PASSWORD MENU (ENTER S/M) OR (EXIT S/M) MEMORY MENU COM MENU CALIBRATE I/O UTILITIES MENU MAIN Menu: ALL S/M or (EXIT S/M) A0 b0c1 AUTO or (S/M) A0 b0c2 AUTO or (S/M) SERVICE MANUAL Menu: ENTER PASSWORD SECURE CONTROLLER TIMEOUT CHANGE OPERATOR PASSWORD CHANGE TECHNICIAN PASSWORD PASSWORD Menu: ENTER THE BLOCK NUMBER... Bxx FUNCTION TYPE Bxx IO1 DESCRIPTION Bxx IO2 DESCRIPTION.. Bxx P01 DESCRIPTION Bxx P02 DESCRIPTION.. EDIT A BLOCK Menu: COPY PRIMARY TO BACKUP COPY BACKUP TO PRIMARY ERASE PRIMARY COMPARE MEMORIES REMAINING MEMORY REPORT CONFIG. NAME EPROM VER. MEMORY Menu: EXAMINE BLOCK FIND FUNCTION FIND USAGE FORCE BLOCK UN-FORCE A BLOCK UN-FORCE ALL BLOCKS DISPLAY SCAN TIME EDIT QUICK MENU BLOCK TIMING UTILITIES SUB-MENU COM PORT ADDRESS BAUD PARITY RTU/ASCII +/- DATA TIME OUT TEST CABLE COM PORT Menu: BOARD O INPUTS (BOARD 1 INPUTS) (BOARD 2 INPUTS) BOARD O OUTPUTS (BOARD 1 OUTPUTS) (BOARD 2 OUTPUTS) CALIBRATION Menu: HI PSI ALM SP LO PSI ALM SP HI LEVEL ALM SP LO LEVEL ALM SP PSI GAIN PSI REPEAT/MIN LEVEL GAIN LEVEL REPEAT/MIN QUICK Menu:

PCC-III - Front Door Removed RS232 BLOCKWARE DOWNLOAD PORT BACKUP MEMORY WRITE PROTECT JUMPER FRONT PANEL CABLE CONNECTOR BACKUP MEMORY MODULE REMOVE ONE SCREW TO TAKE AWAY FRONT PANEL

PCC-III - PC3_Edit ™ Spreadsheet

PCC-III Visio ™ PC3_Draw Blockware CAD Allows PCC-III to be configured using a library of block templates with simple “drag” & “drop” mouse operations

Oxygen Analyzer Logic

Efficiency Logic

Easy Commissioning with “Learn” Mode...  Controllers “Learn” Fuel-Air ratios  Fuel and Air controllers are placed in Manual  Burner is adjusted for optimum “low fire”  “Store” button is pressed  Air Flow SP, Oxygen SP, FD and FGR damper curve points automatically calculated and entered.  Process is repeated for up to 10 more load points  No calculating or entering of numeric data  “Edit” points by re-Learning or via Edit Menu  Separate Sets of Curves for Gas and Oil

Tools for Commissioning  Front Panel Edit Keys Allow Commissioning without laptops or handheld devices  “Quick Menus” for rapid editing of tuning constants, alarm setpoints, and key parameters  “Last Parameter” selection  Optional Password Protection with Time-out  Copy between Primary and Backup Memories  “Examine”, “Block Force” and, “Service Manual” Troubleshooting Modes  Laptop Commissioning with PC3_Edit ™ or PC3_Draw

Lowest Installed Cost  Shallow case allows smaller enclosure  Weather / Rain Proof case avoids glass doors  No need for external isolation relays  Built in 215mA transmitter power supply  Largest quantity of I/O in a single enclosure  “Examine”, “Block Force” and “Learn” modes for efficient commissioning  Free project proven combustion solutions  30 years of combustion experience to ensure a smooth project

Summary CB Oxygen Trim From Preferred..  Simple commissioning  Simplified approach to calibration  Easy calibration  Learn Mode  Low Cost & Field Proven.  10 year old sensor  Thousands of PCC Controllers installed.

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