SOW Attachment (10) BACnet Communication Points.pdf
PDF 23 KB Posted
- Solicitation number
- 21-SEL-031
About this file
This document contains a Statement of Work attachment and related federal contract opportunity for a roof-top chiller replacement project at the Naval Business Center in Philadelphia. The Naval Surface Warfare Center intends to issue a Request for Proposal for the selective deconstruction, draining, and removal of an existing 150-ton chiller and its replacement with an air-cooled, rotary-screw or scroll-type chiller with open protocol BACnet control and communication capabilities. The replacement chiller must have a minimum nominal capacity of 150 tons and operate at 480V/3PH/60Hz. The Statement of Work attachment provides the points that require monitoring and control for the chiller controls package, including discrete inputs/outputs and analog parameters for Circuit A of the system. The period of performance for the project is estimated at 120 days after receipt of the Notice to Proceed, and lifting operations for the crane must occur on weekends between 0700 to 1630 hours to minimize impacts. The soliciting agency is the Department of the Navy Naval Sea Systems Command.
View the file
Other files
Show all 13
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
SOW Attachment (10) Bldg. 4 Roof-Top Chiller Replacement
BACnet Communication Points
Bldg. 4 Roof-Top Chiller Replacement BACnet Communication Points
Below is a listing of all points requiring monitoring and control for the chiller controls package.
Control Mode (On/Off) (16 points) Alarm State (Normal/Alarm) Occupied (Run/Stop) Low Sound Active (Yes/No) Override Modes in Effect (Yes/No) Emergency Stop (Normal, Stop) Outside Air Temperature (°F) Fan 1 Relay (On/Off) Fan 2 Relay (On/Off) Active Demand Limit (%) Requested Stage Active Set Point (°F) Control Point (°F) Entering Fluid Temp (°F) Leaving Fluid Temp (°F) Minutes Left to Start
CIRCUIT A DISCRETE INPUTS/OUTPUTS (20 points) Comp 1 Relay (On/Off) Comp 2 Relay (On/Off) Comp 3 Relay (On/Off) Comp 1 Feedback (On/Off) Comp 2 Feedback (On/Off) Comp 3 Feedback (On/Off) Loader 1 Relay (On/Off) Loader 2 Relay(On/Off) Loader 3 Relay (On/Off) Motor Cooling 1 Solenoid (On/Off) Motor Cooling 2 Solenoid (On/Off) Motor Cooling 3 Solenoid (On/Off) Crank Heater Output 1 (On/Off) Crank Heater Output 2 (On/Off) Crank Heater Output 3 (On/Off) Crank Heater Current 1 (Amps) Crank Heater Current 2 (Amps) Crank Heater Current 3 (Amps) Oil Level Switch (On/Off)
SOW Attachment (10) Bldg. 4 Roof-Top Chiller Replacement
BACnet Communication Points
CIRCUIT A ANALOG PARAMETERS (23 points) Percent Total Capacity (%) Percent Available Capacity (%) Comp Running Current (Amps) Discharge Pressure (PSI) Head Set point (°F) Comp Return Gas Temp (°F) Discharge Gas Temp (°F) Superheat Temp (°F) Oil Pressure DP (PSI) Oil Pressure (PSI) Saturated Condensing Temp (°F) Saturated Suction Temp (°F) Suction Pressure (PSI) Suction Superheat Temperature (°F) EXV % Open (%) Variable Head Pressure Output (PSI) Comp Unload Time (Seconds) Motor Thermistor Comp 1 (Ohms) Motor Thermistor Comp 2 (Ohms) Motor Thermistor Comp 3 (Ohms) Compressor 1 Hours Compressor 2 Hours Compressor 3 Hours
[CIRCUIT B – Same points as CIRCUIT A]
File details come from the government source that posted it. Updated .