13. Hines AC Shop HVAC Controls Requirements.docx

SOW requirements for A/C Shop

New Building Automation Controls and Integration to BAS Supervisor

· The current BAS (Building Automation System) utilizes Johnson Controls Facility Explorer with BACnet communication.

· Any new controls are required: FX platform by Johnson Controls utilizing BACnet communication. SSJ provided in separate document.

· METASYS and N2 communication shall not be used on any project at Edward Hines Jr. VAMC or any of the Community Based Outpatient Clinics.

· If project spans multiple floors with new controls, a new JACE shall be used for each floor where controls are being installed.

· If a floor has a JACE in use, a new JACE shall be provided by installing contractor to include enough points to incorporate any new controls as well as existing controls.

· Any new JACE provided shall have Wi-Fi capability.

· JACE IP address shall be requested from AC Shop Supervisor

· On-site controls contractor maintains list of available IP addresses

· To prevent duplicate device instance IDs, device instance ID’s must be requested from AC Shop Supervisor.

· Device instance IDs are given out in blocks of 1,000 IDs.

· This list is managed and distributed by on-site Temperature Controls contractor.

· Zone controllers provided in this project shall have a digital display with temperature and humidity. A center setpoint of 72 degrees with +/- 5 degrees allowable control.

· Provide graphics to all points on front end supervisor (at the N4 level)

· AUTO and OVERRIDE flags for OPERATOR

· SET flags for ADMIN

· EMERGENCY OVERRIDE & AUTO flags shall be hidden for all users

· CFM Setpoint, Discharge Air Pressure Setpoint, Humidity Setpoint points shall only be editable by ADMIN

· Zone Setpoint, Discharge Air Temperature Setpoint, Humidity Setpoint for all users

· Analog Inputs shall have all flags hidden

· Analog outputs shall have OVERRIDE and AUTO flags only

· Digital outputs shall have ACTIVE / INACTIVE / AUTO flags

· Digital inputs shall have all flags hidden

· Effective Setpoints (setpoint plus/minus thermostat offset) shall also be shown for all graphics.

· Systems with a Reset Schedule shall have SET / OVERRIDE / AUTO for high/low/effective setpoint for ADMIN only. OVERRIDE / AUTO only for effective setpoint for OPERATOR, all other flags hidden.

· Floor Plans shall be created showing room boundaries and numbers:

· Greater than or equal to 4 degrees above setpoint shall highlight the effected zone RED.

· Greater than or equal to 4 degrees below setpoint shall highlight the effected zone BLUE.

· Zone Temp / Humidity / Effective Setpoint shall be included on each zone.

· Each zone shall link to a device graphic showing the VAV box controls.

· Remote access is not allowed for any BAS system.

· Contractor access to BAS system:

· MAC address of ethernet card for the PC/Laptop to be used during this project shall be provided to AC Shop Supervisor to allow access to network. AC Shop Supervisor to create ticket with OI&T and will provide IP address to be used to access the system.

· Username/Password will be provided by AC Shop Supervisor for access to front-end.

Control Actuators

· Valve actuators must provide visual and electronic position feedback. Incorporate position feedback to BAS.

· Actuators must be proportional control type, 2-10 VDC.

VFDs

· Bypass must have BACnet communication

· Serially monitor amps, kWHrs, operating mode, etc – even in bypass mode

· VFDs for Air Handling Units must be tied into fire shutdown, even during bypass operation must shut down with Fire/Smoke alarm

Pipe Insulation

· Fiberglass insulation on all piping.

· All outdoor insulation shall also be covered with embossed, aluminum jacketing.

10/31/2022