Attachment_6_CAFB_DDC_General_Requirements_Guide.pdf

PDF 3 MB Posted Jul 23, 2014

Attached to: Replace HVAC for Bldg 785
Solicitation number: FA4855-14-B-0008
Issued by: Department of the Air Force Special Operations Command

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CAFB DCC General Requirements Attachment 6

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2 7 S O C E S / C E N

DDC General Requirements Guide

For Cannon Air Force Base Scott Hindt - Mechanical Engineer Dave Proctor - EMCS Technician

Barry King - EMCS Technician

U.S Air Force

Page 1 Cannon Air Force Base September 25, 2013

(BLANK PAGE)

September 25, 2013 Cannon Air Force Base Page 2

TABLE OF CONTENTS

I. DIRECT DIGITAL CONTROL SYSTEM

1. GENERAL REQUIREMENTS

2. TECHNICIAN WORKSTATION

3. PROGRAMMING

4. EMCS PANEL

II. DIRECT DIGITAL CONTROL POINTS

1. GENERAL REQUIREMENTS

2. EXHAUST/SUPPLY FANS

3. AIR HANDLING UNITS – VAV BOX SYSTEM

4. AIR HANDLING UNITS – SINGLE ZONE

5. AIR HANDLING UNITS - THREE DECK MULTIZONE

6. AIR HANDLING UNITS - TWO DECK MULTIZONE

7. PACKAGE A/C UNITS – GAS HEATER

8. DEDICATED OUTDOOR AIR UNITS

9. TERMINAL UNITS – FAN COIL

10. TERMINAL UNITS – FAN POWERED VARIABLE AIR VOLUME

11. TERMINAL UNITS – VARIABLE AIR VOLUME

12. BOILER

13. CHILLER

14. DOMESTIC HW SYSTEM AND RECIRCULATING PUMP UNIT (MONITOR ONLY)

15. DOMESTIC WATER BOOSTER PUMP UNIT (MONITOR ONLY)

16. UTILITY METERS

III. DIRECT DIGITAL CONTROL GRAPHIC SCREENS

1. GENERAL REQUIREMENTS

2. TOP DISPLAY

3. OVERVIEW

4. FLOOR PLAN

5. AIR HANDLING UNITS – VAV BOX SYSTEM

6. AIR HANDLING UNITS – SINGLE ZONE

7. AIR HANDLING UNITS - THREE DECK MULTIZONE

8. ZONES - THREE DECK MULTIZONE

9. AIR HANDLING UNITS - TWO DECK MULTIZONE

10. ZONES - TWO DECK MULTIZONE

11. PACKAGED A/C UNITS - GAS HEATER

12. DEDICATED OUTDOOR AIR UNITS

13. TERMINAL UNITS – FAN COIL (WATER COIL HEATING/COOLING)

14. TERMINAL UNITS – FAN COIL (WATER COIL HEATING, DX COOLING, ECONOMIZER)

15. TERMINAL UNITS – FAN POWERED VARIABLE AIR VOLUME

16. TERMINAL UNITS – VARIABLE AIR VOLUME

17. BOILER

18. CHILLER

APPENDIX A

Page 3 Cannon Air Force Base September 25, 2013

(BLANK PAGE)

September 25, 2013 Cannon Air Force Base Page 4

I. Direct Digital Control System

1. General Requirements

1.1. A DDC system is required for any building that

has 10 tons of cooling or more whether in a single system or multiple systems combined.

1.2. Cannon AFB has received Air Force Special

Operations Command (AFSOC) authority to operate (ATO) Alerton hardware and Envision 2.0 software on existing base VLAN. These are the only systems that are currently authorized to connect to the base VLAN. All other proposed equipment and software shall receive ATO approval through AFSOC prior to installation.

1.3. The Installing Contractor shall complete and

submit an IP Address Request Form to 27 SOCS prior to installation of DDC system unless other arrangements are made with the Cannon AFB EMCS Technicians.

1.4. All equipment in the ceiling space shall be labeled

on the T-bars of the drop ceiling.

2. Technician Workstation

2.1. Located in building 371.

2.2. The existing Base EMCS system front end software

and tools shall be able to fully customize device programming and be capable of sending changes to existing device programming and/or new programming for added devices to the DDC controllers located in the project building.

Microsoft Visio is currently used to create and send programs to building controllers. The proposed system shall utilize the graphical block programming offered by Visio to create and send new programs.

2.3. Communication with the Technician Workstation

and server (B355) shall be through existing Base VLAN using BACnet protocols in accordance with ASHRAE 135 BACnet Communication without the use of gateways or additional software.

2.4. MS/TP network settings shall be configured and/or

modified utilizing the existing software and tools installed to include device instances, network numbers, mac addresses and baud rate.

2.5. Automatic weekly updates shall be saved to the

existing server (B355).

2.6. Installing Contractor shall identify a Site Manager

for Cannon AFB. The Site Manager shall be the only one who has permission to upload new programs and graphics with supervision by the Cannon AFB EMCS Technicians.

2.7. All modifications to the existing Base EMCS system

software and hardware shall be done by technicians who are currently certified and trained.

The Contractor shall upload the current program and graphics being used prior to any work being done on existing building programs.

2.8. New programs shall be proofed by the Base EMCS

Technicians before being uploaded.

2.9. New programs shall be uploaded at least one week

prior to the final inspection of the project.

2.10. The Installing contractor shall meet with Cannon

AFB EMCS technicians prior to the building final to verify that there is connectivity to the Technician Workstation.

3. Programming

3.1. All systems shall be programmed with an

occupancy schedule. The installing contractor shall work with the user to determine and test an actual occupancy schedule before the final inspection.

3.2. The MS/TP Network # shall be the same as the

building number.

3.3. Each equipment item shall be described in the

device manager in the following format: Building #_Device #_Room #.

4. EMCS Panel

4.1. All demoed DDC controller of any manufacturer

shall be turned over the base EMCS Technicians.

4.2. All controllers shall be located in the mechanical

room of the building in a dedicated enclosure. The Building Control Module (BCM) shall be installed in a lockable panel that is keyed to match the current EMCS panel key used by the Base EMCS Technicians.

4.3. Each main piece of equipment shall have its own

dedicated controller (AHU, Boiler, Chiller, etc.).

Each controller shall have 25% of inputs/outputs open (IN, AO, BO).

Page 5 Cannon Air Force Base September 25, 2013

4.4. Ensure wire raceways are used inside the

enclosure and covers are in place to provide a neat and tidy organization of wires.

4.5. Install a standard electrical outlet if one does not

exist.

4.6. Provide controller termination diagram to depict

the controller and connected peripherals for easy trouble shooting. One copy shall be submitted with the O&M manuals and a second copy shall be mounted on the interior door of the panel.

4.7. Utilize wire labels to physically identify the wire

used for each peripheral.

4.8. CAT-6 cable shall be pulled from the patch panel

located in the communications room of the project building to the BCM in the mechanical room mounted in a dedicated enclosure.

September 25, 2013 Cannon Air Force Base Page 6

II. Direct Digital Control Points

1.1. As a minimum, the following systems shall be

provided with the indicated control points for monitoring and control of the HVAC systems installed.

1.2. Outside Air Temperature - Display air

temperature in °F. Sensor shall be mounted to the north facing exterior wall of the building at least 4” away from the wall surface and include shielding from direct sunlight.

1.3. Building pressure - Display building pressure in

iwc (inches water column). Building pressure shall be used to control the relief damper. An alternative is to install a barometric relief damper calibrated for the design building pressure.

1.4. A VFD is required for any motor greater than or

equal to 5 hp. If supply fan motor is large enough to have a VFD, the return fan (if equipped) shall also have a VFD regardless of size.

1.5. All penetrations through the exterior of the

building shall include a motorized actuator to close the opening in the event of an emergency shutdown.

1.6. The system shall be programed to default to heat

mode in the event of a power outage.

1.7. ATFP - Each facility shall have at least one

centrally located emergency HVAC shutdown button within 200 feet from any point in the building. When pressed, all fans in the building will disable and all exterior penetrations shall close. The EMCS front end software must also be capable of activating this feature remotely.

2. Exhaust/Supply Fans

2.1. Start/Stop

2.2. Status - Display bright green/red button if the

current sensor does/does not detect current running through the fan motor.

3. Air Handling Units – VAV Box System

3.1. Supply fan on/off: Fan shall be on unless disabled

due to alarm status of occupancy schedule.

3.2. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

3.3. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

3.4. Supply fan speed - Fan speed shall modulate to

maintain the specified duct static pressure. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

3.5. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

3.6. Supply air temperature - Display air temperature

in °F. A reset schedule shall be programmed to provide 55°F air when the highest cooling signal is 100% and provide 65°F air when the highest cooling signal is below 100%.

3.7. Supply air static pressure - Display duct pressure.

The VFD shall maintain the specified set-point.

3.8. Supply air flow rate - Display flow rate in units of

CFM.

3.9. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

3.10. High Pressure Sensor - When duct pressure

exceeds 4 iwc, disable the AHU in the same way as the freeze stat.

3.11. Return fan on/off (if equipped with return fan) -

Fan shall be on unless disabled due to alarm status of occupancy schedule.

3.12. Return fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

3.13. Return fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

3.14. Return fan speed (if equipped with return fan) -

Fan speed shall modulate to track the supply air fan speed at 50%. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

3.15. Return fan VFD status (if equipped with return

fan) - Display the fan speed percent provided by the VFD feedback signal.

Page 7 Cannon Air Force Base September 25, 2013

3.16. Return air temperature - Display air temperature

in °F.

3.17. Return duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

3.18. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

3.19. Return air flow rate - Display measured air flow

through return air duct in unit of CFM.

3.20. Return air CO2 - Display the CO2 level in ppm.

3.21. Outside air damper control - Link damper

control with return air damper to open/close opposite of each other. Outside air and return air damper positions shall modulate to maintain the supply air set-point. 100% outside air shall be enabled when the outside air temperature is less than the return air temperature. During unfavorable outside air conditions, the outside air shall modulate to maintain a set differential CO2 level between the return and outside air.

3.22. Outside air damper status - Display damper

position percent provided by the feedback signal.

3.23. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

3.24. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point.

3.25. Outside air CO2 - Display the CO2 level in ppm.

3.26. Relief air damper status - Display damper position

percent provided by the feedback signal.

3.27. Mixed air temperature - Display air temperature

in °F.

3.28. Filter status (analog input) - Display pressure

drop through the filter in iwc (inches water column). Provide an area to enter filter section design pressure drop for clean, half-life and dirty conditions. A two stage filter alarm shall display when filter meets specified half-life pressure drop and dirty pressure drop.

3.29. Cooling/Heating valve control - Valve shall

modulate to maintain supply air temperature.

3.30. Cooling/Heating valve status - Display valve

position percent provided by the feedback signal.

3.31. Freeze status - Display and alarm when heating

coil discharge air temperature is below 35°F.

This will disable the fans and close the outside and relief air dampers and open return air dampers.

4. Air Handling Units – Single Zone

4.1. Space temperature - Thermostat shall be installed

on an interior wall in the most central location. If a central location is not available, install thermostat near the return air diffuser for the space. Temperature set-points shall follow a facility specific occupancy schedule. Temperature set-points for occupied and unoccupied modes shall follow the most recent AFSOC Energy Policy.

4.2. Supply fan on/off - Fan shall operate three

different ways depending on the fan mode chosen on the front end software. (1) Fan shall run continuously. (2) Fan shall cycle with a call for heating. (3) Fan shall cycle with a call for heating or cooling.

4.3. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

4.4. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

4.5. Supply fan speed - In “Continuous” mode the fan

During cooling, the fan shall modulate speed as described in “Continuous” mode. In “Cycle Heating and Cooling” mode, the AHU shall shut down when the zone temperature is satisfied during heating and cooling.

4.6. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

September 25, 2013 Cannon Air Force Base Page 8

4.7. Supply air temperature - Display air temperature

in °F. A cooling reset schedule shall be programmed to provide 55°F air when the cooling signal is 100% and provide 65°F air when the cooling signal is below 100%. A heating reset schedule shall be programmed to provide 90°F air when the heating signal is 100% and provide 80°F air when the heating signal is below 100%.

4.8. Supply air static pressure - Display duct pressure

in iwc. The duct static pressure shall be used to control the max fan speed.

4.9. Supply air flow rate - Display flow rate in units of

CFM.

4.10. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

4.11. High Pressure Sensor - When duct pressure

exceeds 4 iwc, disable the AHU in the same way as the freeze stat.

4.12. Return fan on/off (if equipped with return fan) -

Return fan shall cycle in the same way as the supply fan.

4.13. Return fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

4.14. Return fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

4.15. Return fan speed (if equipped with return fan) -

Fan speed shall modulate to track the supply air fan speed at 50%. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

4.16. Return fan VFD status (if equipped with return

fan) - Display the fan speed percent provided by the VFD feedback signal.

4.17. Return air temperature - Display air temperature

in °F.

4.18. Return duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

4.19. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

4.20. Return air flow rate - Display measured air flow

through return air duct in unit of CFM.

4.21. Return air CO2 - Display the CO2 level in ppm.

4.22. Outside air damper control - Link damper

control with return air damper to open/close opposite of each other. Outside air and return air damper positions shall modulate to maintain the supply air set-point in cooling mode only.

During unfavorable outside air conditions, the outside air shall modulate to maintain a set differential CO2 level between the return and outside air.

4.23. Outside air damper status - Display damper

position percent provided by the feedback signal.

4.24. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

4.25. Outside air CO2 - Display the CO2 level in ppm.

4.26. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point.

4.27. Relief air damper status - Display damper position

percent provided by the feedback signal.

4.28. Mixed air temperature - Display air temperature

in °F.

4.29. Filter status (analog input) - Display pressure

4.30. Cooling/Heating valve control - Valve shall

modulate to maintain supply air temperature.

4.31. Cooling/Heating valve status - Display valve

position percent provided by the feedback signal.

4.32. Freeze status - Display and alarm when heating

coil discharge air temperature is below 35°F.

This will disable the fans and close the outside and relief air dampers and open return air damper.

Page 9 Cannon Air Force Base September 25, 2013

5. Air Handling Units - Three Deck Multizone

5.1. Space temperature - Thermostat shall be installed

on an interior wall in the most central location in each zone. If a central location is not available, install thermostat near the return air diffuser for the space. Temperature set-points shall follow a facility specific occupancy schedule. Temperature set-points for occupied and unoccupied modes shall follow the most recent AFSOC Energy Policy.

5.2. Supply fan on/off - Fan shall be on unless disable

due to alarm status of occupancy schedule.

5.3. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

5.4. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

5.5. Supply fan speed - Fan speed shall modulate to

maintain the specified duct static pressure. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

5.6. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

5.7. Supply air temperature - Display air temperature

in °F for each zone. A cooling reset schedule shall be programmed to provide 55°F air when the highest cooling signal is 100% and provide 65°F air when the highest cooling signal is below 100%. A heating reset schedule shall be programmed to provide 90°F air when the highest heating signal is 100% and provide 80°F air when the highest heating signal is below 100%.

5.8. Cold deck supply temperature - Display air

temperature in °F.

5.9. Bypass deck supply temperature - Display air

temperature in °F.

5.10. Hot deck supply temperature - Display air

temperature in °F.

5.11. Supply air static pressure - Display duct pressure

in iwc.

5.12. Supply air flow rate - Display flow rate in units of

CFM for each zone.

5.13. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

Sensor shall be located downstream of the supply fan but upstream of the Multizone damper.

5.14. High Pressure Switch - When duct pressure

exceeds 4 iwc disable the AHU in the same way as the freeze stat.

5.15. Return fan on/off (if equipped with return fan) -

Return fan shall cycle in the same way as the supply fan.

5.16. Return fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

5.17. Return fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

5.18. Return fan speed (if equipped with return fan) -

Fan speed shall modulate to track the supply air fan speed at 50%. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

5.19. Return fan VFD status (if equipped with return

fan) - Display the fan speed percent provided by the VFD feedback signal.

5.20. Return air temperature - Display air temperature

in °F.

5.21. Return duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

5.22. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

5.23. Return air flow rate - Display measured air flow

through return air duct in unit of CFM.

5.24. Return air CO2 - Display the CO2 level in ppm.

5.25. Outside air damper control - Link damper

control with return air damper to open/close opposite of each other. Outside air and return air damper positions shall modulate to maintain the supply air set-point in cooling mode only.

During unfavorable outside air conditions, the outside air shall modulate to maintain a set differential CO2 level between the return and outside air.

5.26. Outside air damper status - Display damper

September 25, 2013 Cannon Air Force Base Page 10

5.27. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

5.28. Outside air CO2 - Display the CO2 level in ppm.

5.29. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point.

5.30. Relief air damper status - Display damper position

percent provided by the feedback signal.

5.31. Mixed air temperature - Display air temperature

in °F.

5.32. Filter status (analog input) - Display pressure

drop through the filter in iwc (inches water column). A two stage filter alarm shall display when filter meets specified half-life pressure drop and dirty pressure drop.

5.33. Bypass Damper - Damper shall modulate with the

outside air damper.

5.34. Cold Deck Zone Damper - Modulate

proportionally with the call for cooling. Damper shall be 0% (closed) when a call for heating is present.

5.35. Bypass Zone Damper - Damper shall modulate

opposite of the cold deck and hot deck zone dampers.

5.36. Hot Deck Zone Damper - Modulate

proportionally with the call for heating. Damper shall be 0% (closed) when a call for cooling is present.

5.37. Cooling/Heating valve control - Valve shall

modulate to maintain zone supply air temperature.

5.38. Cooling/Heating valve status - Display valve

position percent provided by the feedback signal.

5.39. Freeze status - Display and alarm when heating

coil discharge air temperature is below 35°F.

This will disable the fans and close the outside and relief air dampers and open return air damper.

6. Air Handling Units - Two Deck Multizone

6.1. Space temperature - Thermostat shall be installed

6.2. Supply fan on/off - Fan shall be on unless disable

due to alarm status of occupancy schedule.

6.3. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

6.4. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

6.5. Supply fan speed - Fan speed shall modulate to

maintain the specified duct static pressure. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

6.6. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

6.7. Supply air temperature - Display air temperature

6.8. Cold deck supply temperature - Display air

temperature in °F.

6.9. Hot deck supply temperature - Display air

temperature in °F.

6.10. Supply air static pressure - Display duct pressure

in iwc.

6.11. Supply air flow rate - Display flow rate in units of

CFM for each zone.

Page 11 Cannon Air Force Base September 25, 2013

6.12. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

Sensor shall be located downstream of the supply fan but upstream of the Multizone damper.

6.13. High Pressure Switch - When duct pressure

exceeds 4 iwc disable the AHU in the same way as the freeze stat.

6.14. Return fan on/off (if equipped with return fan) -

Return fan shall cycle in the same way as the supply fan.

6.15. Return fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

6.16. Return fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

6.17. Return fan speed (if equipped with return fan) -

Fan speed shall modulate to track the supply air fan speed at 50%. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

6.18. Return fan VFD status (if equipped with return

fan) - Display the fan speed percent provided by the VFD feedback signal.

6.19. Return air temperature - Display air temperature

in °F.

6.20. Return duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

6.21. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

6.22. Return air flow rate - Display measured air flow

through return air duct in unit of CFM.

6.23. Return air CO2 - Display the CO2 level in ppm.

6.24. Outside air damper control - Link damper

control with return air damper to open/close opposite of each other. Outside air and return air damper positions shall modulate to maintain the supply air set-point in cooling mode only.

During unfavorable outside air conditions, the outside air shall modulate to maintain a set differential CO2 level between the return and outside air.

6.25. Outside air damper status - Display damper

6.26. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

6.27. Outside air CO2 - Display the CO2 level in ppm.

6.28. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point.

6.29. Relief air damper status - Display damper position

percent provided by the feedback signal.

6.30. Mixed air temperature - Display air temperature

in °F.

6.31. Filter status (analog input) - Display pressure

drop through the filter in iwc (inches water column). A two stage filter alarm shall display when filter meets specified half-life pressure drop and dirty pressure drop.

6.32. Cold Deck Damper - Modulate proportionally

with the call for cooling. Damper shall be 0% (closed) when a call for heating is present.

6.33. Hot Deck Damper - Modulate proportionally

with the call for heating. Damper shall be 0% (closed) when a call for cooling is present.

6.34. Cooling/Heating valve control - Valve shall

modulate to maintain zone supply air temperature.

6.35. Cooling/Heating valve status - Display valve

position percent provided by the feedback signal.

6.36. Freeze status - Display and alarm when heating

coil discharge air temperature is below 35°F.

This will disable the fans and close the outside and relief air dampers and open return air damper.

7. Package A/C Units – Gas Heater

7.1. Space temperature - Thermostat shall be installed

September 25, 2013 Cannon Air Force Base Page 12

7.2. Supply fan on/off - Fan shall operate three

7.3. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

7.4. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

7.5. Supply fan speed - In “Continuous” mode the fan

7.6. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

7.7. Supply air temperature - Display air temperature

in °F.

7.8. Supply air static pressure - Display duct pressure.

7.9. Supply air flow rate - Display flow rate in units of

CFM.

7.10. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

7.11. High Pressure Sensor - When duct pressure

exceeds 4 iwc disable the AHU in the same way as the freeze stat.

7.12. Return fan on/off (if equipped with return fan) -

Return fan shall cycle in the same way as the supply fan.

7.13. Return fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

7.14. Return fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

7.15. Return fan speed (if equipped with return fan) -

Fan speed shall modulate to track the supply air fan speed at 50%. A minimum supply power shall be set according to motor’s manufacturer suggested requirements.

7.16. Return fan VFD status (if equipped with return

fan) - Display the fan speed percent provided by the VFD feedback signal.

7.17. Return air temperature - Display air temperature

in °F.

7.18. Return duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

7.19. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

7.20. Return air flow rate - Display measured air flow

through return air duct in unit of CFM.

7.21. Return air CO2 - Display the CO2 level in ppm.

7.22. Outside air damper control - Link damper

control with return air damper to open/close opposite of each other. Outside air and return air damper positions shall modulate to maintain the supply air set-point in cooling mode only.

During unfavorable outside air conditions, the outside air shall modulate to maintain a set differential CO2 level between the return and outside air.

7.23. Outside air damper status - Display damper

position percent provided by the feedback signal.

7.24. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

7.25. Outside air CO2 - Display the CO2 level in ppm.

7.26. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point. An alternative is to install a barometric relief damper calibrated for the design building pressure.

7.27. Relief air damper status - Display damper position

percent provided by the feedback signal.

7.28. Mixed air temperature - Display air temperature

in °F.

Page 13 Cannon Air Force Base September 25, 2013

7.29. Filter status (analog input) - Display pressure

7.30. Condenser on/off - Display indicator to identify

mode.

7.31. Heater on/off - Display indicator to identify

mode.

7.32. Freeze status - Display and alarm when heater

discharge air temperature is below 35°F. This will disable the fans and close the outside and relief air dampers and open return air damper.

8. Dedicated Outdoor Air Units

8.1. Space temperature - Thermostat shall be installed

8.2. Supply fan on/off - Fan shall operate three

8.3. Supply fan status (VFD) - Display bright green/red

button if the current sensor does/does not detect current running through the fan motor.

8.4. Supply fan status (no VFD) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

8.5. Supply fan speed - In “Continuous” mode the fan

shall reduce speed proportionally as the call for heating/cooling decreases. When the zone temperature is satisfied, the fan speed shall be at the motor manufacturer’s recommended minimum speed. In “Cycle Heating” mode the AHU shall shut down when the zone temperature is satisfied during heating only. During cooling, the fan shall modulate speed as described in “Continuous” mode. In “Cycle Heating and Cooling” mode, the AHU shall shut down when the zone temperature is satisfied during heating and cooling.

8.6. Supply fan VFD status - Display the fan speed

percent provided by the VFD feedback signal.

8.7. Supply air temperature - Display air temperature

8.8. Supply air static pressure - Display duct pressure

in iwc. The duct static pressure shall be used to control the max fan speed.

8.9. Supply air flow rate - Display flow rate in units of

CFM.

8.10. Supply duct smoke detector status - Display

alarm if smoke is detected. This will disable the fans and close the outside and relief dampers.

8.11. High Pressure Sensor - When duct pressure

exceeds 4 iwc, disable the AHU in the same way as the freeze stat.

8.12. Outside air damper control - Outside air shall

modulate with supply fan speed.

8.13. Outside air damper status - Display damper

position percent provided by the feedback signal.

8.14. Outside air flow rate - Display measured air flow

through outside air duct in units of CFM.

8.15. Relief air damper control - Damper shall

modulate to maintain the specified building pressure set-point.

8.16. Relief air damper status - Display damper position

percent provided by the feedback signal.

September 25, 2013 Cannon Air Force Base Page 14

8.17. Filter status (analog input) - Display pressure

8.18. Cooling/Heating valve control - Valve shall

modulate to maintain supply air temperature.

8.19. Cooling/Heating valve status - Display valve

position percent provided by the feedback signal.

8.20. Freeze status - Display and alarm when heating

coil discharge air temperature is below 35°F.

This will disable the fans and close the outside and relief air dampers and open return air damper.

9. Terminal Units – Fan Coil

9.1. Space temperature - Thermostat shall be installed

9.2. Supply fan on/off - Fan shall operate three

9.3. Supply fan status (<2HP) - Display bright

green/red button if the current sensor does/does not detect current running through the fan motor.

9.4. Supply fan status (>2HP) - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

9.5. Supply fan speed (if required) - In “Continuous”

mode the fan shall reduce speed proportionally as the call for heating/cooling decreases. When the zone temperature is satisfied, the fan speed shall be at the motor manufacturer’s recommended minimum speed. In “Cycle Heating” mode the AHU shall shut down when the zone temperature is satisfied during heating only. During cooling, the fan shall modulate speed as described in “Continuous” mode. In “Cycle Heating and Cooling” mode, the AHU shall shut down when the zone temperature is satisfied during heating and cooling.

9.6. Supply fan VFD status (if required) - Display the

fan speed percent provided by the VFD feedback signal.

9.7. Supply air temperature - Display air temperature

in °F. A cooling reset schedule shall be programmed to provide 55°F air when outside air temperature is above 70°F and provide 65°F air when outside air temperature is between 60°F - 70°F. A heating reset schedule shall be programmed to provide 90°F air when outside air temperature is below 45°F and provide 80°F air when outside air is between 45° - 60°F. The cooling reset schedule will default to 55°F supply air set-point if a decreasing cooling signal is received continuously for 10 minutes. The heating reset schedule shall default to 90°F if an increasing heating signal is received continuously for 10 minutes.

9.8. Supply air flow rate - Display flow rate in units of

CFM.

9.9. Return air damper control - Shall modulate

opposite of the outside air damper through linkage or additional actuator.

9.10. Return air flow rate - Display measured air flow

through return air duct in units of CFM.

9.11. Return air relative humidity (if required) - Display

measured relative humidity.

9.12. Return air CO2 - Display measured CO2 level in

ppm.

9.13. Cooling/Heating valve control - Valve shall

modulate to maintain supply air temperature.

9.14. Cooling/Heating valve status - Display valve

Page 15 Cannon Air Force Base September 25, 2013

10. Terminal Units – Fan Powered Variable Air Volume

10.1. Space temperature - Thermostat shall be installed

10.2. Supply air temperature - Display air temperature

in °F.

10.3. Supply air flow rate - Display air flow in CFM.

10.4. Damper control - Modulate between the

minimum set-point and 100% open to maintain space temperature. During heat mode, damper shall be at the minimum position.

10.5. Damper status - Display damper position percent

provided by the feedback signal.

10.6. Reheat coil valve control - Valve shall modulate

to maintain space temperature.

10.7. Reheat coil valve status - Display valve position

percent provided by the feedback signal.

10.8. Fan on/off - Fan shall be enabled with a call for

heating.

10.9. Fan status - Display bright green/red button if the

current sensor does/does not detect current running through the fan motor.

11. Terminal Units – Variable Air Volume

11.1. Space temperature - Thermostat shall be installed

11.2. Supply air temperature - Display air temperature

in °F.

11.3. Supply air flow rate - Display air flow in CFM.

11.4. Damper control - Modulate between the

minimum set-point and 100% open to maintain space temperature.

11.5. Damper status - Display damper position percent

provided by the feedback signal.

11.6. Reheat coil valve control - Valve shall modulate

to maintain space temperature.

11.7. Reheat coil valve status - Display valve position

percent provided by the feedback signal.

12. Boiler

12.1. Boiler on/off - The boiler shall be enabled at 60°F

and below.

12.2. Hot water supply temperature - Display water

temperature in °F. A hot water reset schedule shall be programmed to provide 180°F water when outside air temperatures are 32°F and below. When outside air temperatures are between 32°F and 60°F the hot water supply temperature shall be reset to 90°F.

12.3. Hot water return temperature - Display water

temperature in °F.

12.4. Hot water pump on/off - Pump shall enable when

boiler is operating to circulate hot water through either the heating coils or the bypass.

12.5. Hot water pump status - Display amp reading for

motor. Enter full load amps on the front end screen after installation.

12.6. Hot water pressure differential - Display the

differential pressure between supply and return.

12.7. Hot water pump speed (if required) - Modulate

pump speed to maintain the design pressure differential between the supply side and return side of the heating coil. If a VFD is used, no balancing valve is required.

12.8. Hot water pump VFD status (if required) -

Display the pump speed percent provided by the VFD feedback signal.

13. Chiller

13.1. Chiller on/off - The chiller shall be enabled when

the outside air temperature is above 60°F.

13.2. Chiller status - Display status of chiller.

13.3. Chiller discharge water temperature - Display

water temperature exiting the chiller in °F.

13.4. Chiller interface - Display available information

gathered from the onboard controller.

13.5. Chilled water supply temperature - Display water

temperature supplying the cooling coils in °F.

September 25, 2013 Cannon Air Force Base Page 16

13.6. Chilled water return temperature - Display water

temperature in °F.

13.7. Chilled water pump on/off - Pump shall enable

when chiller is operating to circulate chilled water through either the cooling coils or the bypass.

The system shall monitor the temperature sensors for the chiller discharge, chiller return, CHWS (in mechanical room), and CHWR (in mechanical room) and if any one temperature sensor reads 33°F or below, the system shall cycle the chilled water pumps.

13.8. Chilled water pump status - Display amp reading

for motor. Enter full load amps on the front end screen after installation.

13.9. Chilled water pressure differential - Display the

differential pressure between supply and return.

13.10. Chilled water pump speed (if required) -

Modulate pump speed to maintain the design pressure drop between the supply side and return side of the cooling coil. If a VFD is used, no balancing valve is required.

13.11. Chilled water pump VFD status (if required) -

Display the pump speed percent provided by the VFD feedback signal.

14. Domestic HW System and Recirculating Pump Unit (monitor only)

14.1. Pump on/off - Display bright green/red button if

pump motor is on/off.

14.2. Pump status - Display bright green/red button if

the current sensor does/does not detect current running through the pump motor.

14.3. Return water temperature - Display measured

water temperature.

14.4. Storage tank temperature - Display measured

water temperature.

14.5. Supply water temperature (downstream of

mixing valve and boiler dischargers) - Display measured water temperature.

15. Domestic Water Booster Pump Unit (monitor only)

15.1. Pump on/off - Display bright green/red button if

pump motor is on/off.

15.2. Pump status - Display bright green/red button if

the current sensor does/does not detect current running through the pump motor.

15.3. System Pressure - Display measured pressure.

15.4. Alarm status - Display bright green/red button if

the pump is not/is in alarm status.

16. Utility Meters

16.1. Usage from each utility meter shall be displayed

on the monitoring screens on an hourly, daily, weekly, monthly, and yearly basis in both graphical and tabular format. All graphs shall be bar graph type. Bar graphs and tabular screens shall be provided to compare the current monthly energy usage from each utility meter to the energy usage from the previous month, as well as the previous month a year ago. In addition, the DDC shall calculate the energy intensity for the building (Gallons/SQFT for water, BTU/SQFT for natural gas and kWh/SQFT for electricity) for the current month, previous month, as well as the previous month a year ago.

All historical monthly usages shall be saved in a database and be available at any time for reference. Display current meter reading for all meters.

16.2. Domestic Water Metering: The DDC shall track

and monitor gallons per minute (GPM), maximum flow, minimum flow, and gallons used daily, monthly, and yearly.

16.3. Natural Gas Metering - The DDC shall track and

monitor cubic feet per hour (CFH), maximum flow, minimum flow, and gas used daily monthly, and yearly in 1000 cubic feet delivered (KCF).

Page 17 Cannon Air Force Base September 25, 2013

16.4. Electrical Metering Requirements - The EMCS

shall monitor kW, kWh, power factor, maximum electrical demand, amp draw, voltage of each phase and harmonic data for the 3rd, 5th, and 7th harmonic on both voltage and current. The graphical interface shall provide real time reporting of kW, kWh, power factor, maximum electrical demand, amp draw, voltage of each phase and harmonic data for the 3rd, 5th, and 7th harmonic on both voltage and current. The EMCS shall also provide diagnostic information including under voltage (<10%), over voltage (>10%), negative sequence voltage, over current (>10% over main breaker rating), and under frequency (<56 Hz). Harmonic data and amp draw shall be recorded every 20 minutes and data shall be kept for a week after which it will be over written.

September 25, 2013 Cannon Air Force Base Page 18

III. Direct Digital Control Graphic Screens

1.1. All graphic screens shall be optimized to display full screen on a monitor set at a resolution of 1600 X 900.

1.2. All graphics depicted are examples of a specific type of HVAC system. Actual graphics shall show the appropriate ductwork and AHU accessory layout (return duct, relief duct, outside air duct, coils, furnace, compressor, etc.)

1.3. If a sensor is not installed for a particular readout, display “N/A” in the reading field. If a return fan is not equipped, remove: “Fan Speed”, “Fan On/Off”, and “Fan Status” from the “Return Air” list. If a humidifier is not required for the facility, remove “% Relative Humidity” from the “Return Air” and “Supply Air” lists, remove “Humidifier Signal” from the “Supply Air” list and remove “Dehumid Mode” from the “Modes” list.

1.4. All departures from this section shall be submitted to the Government for approval.

Page 19 Cannon Air Force Base September 25, 2013

2. Top Display

2.1. Side Display

Installing contractor shall display their logo, 2.1.1.

company name, address and phone number in the upper left corner.

Include a navigation button to link to the 2.1.2.

“Utilities” screen.

2.2. Emergency Shutdown

The button on the upper left of the screen is 2.2.1.

used to activate the emergency shutdown sequence for all buildings on the system that have the sequence included in the facility programming. The button shall be bright green when systems are operating normally and red when the emergency shutdown is activated.

Each facility navigation button shall have an 2.2.2.

emergency shutdown button next to it to shut down specific facilities. The button shall be bright green when system is operating normally and red when the emergency shutdown is activated either through the front end software or on site.

2.3. Facility Navigation buttons

Display the building number. Facility 2.3.1.

descriptions as shown on the last four buttons will not be accepted.

September 25, 2013 Cannon Air Force Base Page 20

3. Overview

Page 21 Cannon Air Force Base September 25, 2013

3.1. Side Display

Installing contractor shall display their logo, 3.1.1.

company name, address and phone number in the upper left corner.

All screens shall display the same list of items 3.1.2.

as navigation buttons.

The buttons shall be listed in the following 3.1.3.

order - Previous, Top Display, Overview, BCM, Chiller(s), Boiler(s), AHU (Include an AHU button for every AHU, Exhaust/Supply Fan(s), Electric Meter, Natural Gas Meter, Water Meter, and Facility list of VAVs or Zones. If another piece of equipment is installed in a facility and is not listed above, add the navigation button above the list of VAVs. Two (2) columns of buttons shall be utilized if the list of equipment is too long with the exception of the Previous, Top Display and Overview navigation buttons.

3.2. Heading Bar

Left block - Display the building number. 3.2.1.

Middle Left Block - Display the IP…

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File details come from the government source that posted it. Updated Nov 14, 2017.