Q A.xls

XLS spreadsheet 55 KB Posted Feb 4, 2010

Attached to: RECOVERY- BAS Replacement Oakland FB Federal contract opportunity
Solicitation number: RECOVERY-GS-09P-10-KS-C-0040
Issued by: General Services Administration Public Buildings Service Region 9

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Other files attached to RECOVERY- BAS Replacement Oakland FB, newest first.
File	Type	Posted
Revised SF 1442-3.pdf	PDF	Feb 9, 2010
OFB BAS Agreement R1.doc	DOC document	Feb 8, 2010
Revised Feb 8 SF1442.pdf	PDF	Feb 8, 2010
Q A3.xls	XLS spreadsheet	Feb 8, 2010
Riser N1 w Ethernet Drops Required.pdf	PDF	Feb 6, 2010
Existing System Points List.pdf	PDF	Feb 2, 2010
Standard for PBS CAD Deliverables.pdf	PDF	Feb 2, 2010
specs for GSA furnished computers.pdf	PDF	Jan 29, 2010
General electrical specifications.doc	DOC document	Jan 29, 2010
Specs drawings.zip	ZIP file	Jan 20, 2010
FBO Solicitation.zip	ZIP file	Jan 20, 2010

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Oakland

No.	Description	Response
1	Who is to provide the workstations and Portable Operators Terminals? If the GSA decides they would like to provide them for the contractor, we request that you send a specification outlining software and hardware details.	GSA will provide a new server, laptop and client workstation computers. Spec sheets have been posted for the server and OWS computers. Laptop spec is not known yet, but will be a standard Windows XP laptop.
2	The Scope of Work (Project 1 - 3.1.1) states: "The project incorporates removal of the entire Johnson Metasys control system (except zone level VAV boxes; see Section 3.5, Add Alternate 1 below) and replacement with a new fully BACnet compliant Direct Digital Control (DDC) system as detailed in the specifications. All Johnson Metasys controllers and front end shall be removed and replaced." Given that the Central Plant controls in the Basement were very recently upgraded to the newest Johnson Metasys controllers, are all contractors ordered to remove and replace these controls in the Base Scope of Work? Given that the Central Plant controls in the Basement were very recently upgraded to the newest Johnson Metasys controllers, are all contractors ordered to remove and replace these controls in the Base Scope of Work? Can you please clarify how this may be defined in all bidders' proposals,

so that contractors installing a non-Johnson or Johnson system would have

equal, comparable bids?	Remove all Johnson components not necessary to operate VAVs not being replaced, protect such equipment and give to GSA. Properly dispose of equipment that GSA does not want to retain. The coax ethernet should be left in place. Unless all VAVs are replaced existing OWSs and software should be left in place to support the VAV network; if all VAVs are replaced remove the OWSs and software and give to GSA. The new central plant equipment was installed as an interim fix due to instability; it is to be removed like other Metasys equipment.
	3	As part of the Lighting Controls project by Phillips, a “primary” Ethernet network will be installed in the building, from which our system will extend. Can you please document exact locations of these proposed Ethernet “hubs” in mechanical/electrical rooms?	Existing coaxial cable shall be used during project. Ethernet will be run as part of lighting project. Ethernet network will be extended to all areas requiring global controller, i.e. main mechanical rooms. Contractor may utilize existing coaxial cable until Ethernet is complete.
	4	BAS contractor is to install a new FFOP (Fireman’s Override Panel) in the fire control room. Please indicate the exact desired location for such a panel in the fire control room.	Contractor shall assume space is available in the fire control room or in an adjacent room. Exact location to be determined during design phase.
	5	BAS contractor is to provide design documents as part of this Design-Build contract. Some of those shall be floor-plan type drawings with accurate special layouts rather than schematic control drawings/submittals. Can you please indicate which components of the project scope (Base and Alternates) are to be specifically included in the floor-plan type drawings? In addition, will the contractor be provided with electronic background floorplan CAD drawings from which to base their design?	GSA will provide background floor plans. Contractor shall provide design drawings and documentation for complete scope.
	6	The Concept Design and Specifications Section 15958 refers to “Reference Drawing Number XX-X in Johnson Controls As-built document.” Additionally, it appears that these documents would need to be made available for reference at some point in the future. Due to the limited time to develop a proposal for this project, any relevant documentation would be extremely helpful for bidders to make an educated estimate for the desired scope of work.	We have uploaded control as-builts and points list.
	7	Are the Sequence of Operations referenced in the Specifications Section 15958 exactly the same as the building sequences currently in place? In other words, are we to pull the exact sequences from the existing controls/controllers? Or, are we to write a new, unique sequence per the Specifications?	As part of design process contractor shall provide detailed sequences of operation for review. These sequences shall be based on sequences provided in the specification 15958.
	8	BAS Points List document states “Based on the Mechanical drawings, there are 20 FC units.” Page 11 of the Concept Design ( Building Description) states “17 Fan Coil Units.” What is the proper count of FC Units? Are we to replace any pneumatic heating/cooling coils?	There are 35 Fan Coil Units (FCU). DDC Heating Only: Qty 1 in Auditorium. DDC Cooling Only: Qty 3 in North Tower, Qty 4 in South Tower, Qty 5 in Auditorium. DDC Heating & Cooling: Qty 6 in North Tower, Qty 8 in South Tower, Qty 8 in Auditorium. Pneumatic Control Heating Only: Qty 1 in the North Tower elevator room, Qty 1 in the South Tower elevator room.
	9	Page 9 of the Concept Design ( Building Description) states “total of 9 chilled water Liebert Units.. serve computer rooms.” Page 11 states “10 computer room AC units with chilled water cooling coils.” What is the proper count of Leibert/Computer Room AC Units? Are we to replace any pneumatic cooling coils?	There are 10 computer room AC units. There are no pneumatic actuators on the computer room AC units.
	10	Can you please provide clarification as to the purpose and location of the JACE panel? a. The JACE is typically used as a translating device. In this case, is it designed to make the BAS available via BACnet/IP to the GEMnet? Or as some other communication protocol? b. If the front end of the BAS speaks true BACnet/IP, is a JACE panel necessary as an intermediate device between the BAS and the GEMnet WAN? c. The proposed Existing Network and Integration to GEMnet using JACE403 diagram shows the JACE residing only on one side of the Maintenance Office Server. If this is to serve as an interface between the entire BAS and the GEMnet WAN, please modify the Network and Integration diagram provided with the bid documents to make this clear.	Per spec a JACE is required to interface with the government GEMnet network, GSA shall provide direction on exact location. This device is entirely for interface purposes with the external GEMnet network; it has no control functions internal to the building.
	11	Where are the exact locations of the N2 LAN terminations for VAV boxes? How may are there? In other words, where exactly are we to tie into the existing VAV controls via N2 device?	There is no available N2 as-built drawing showing the end of line device. Contractor to identify where to connect their system to N2 bus.
	12	Can we schedule another site visit for Wednesday, February 3?	Additional site walk scheduled for Friday 2/5/10 at 10am in the lobby of the North tower.
	13	Is it correct that all Fire/Smoke damper scope is excluded?	Yes
	14	Is it correct that all (e) Fire/Smoke damper points and equipment can be abandoned in place at any time during the project?	Yes
	15	How much wall space will be provided for the new Firemans Smoke Control Panel location?(36"W x 48"H X 6"D is common for RSG-series HR Kirkland graphic enunciators).	Contractor shall assume space is available in the fire control room or in an adjacent room. Exact location to be determined during design phase.
	16	What hours are installers allowed to work onsite during weekdays?	Building occupied hours are from 6:00am thru 6:00pm M-F. All major work that may disrupt Government occupied spaces shall take place during unoccupied building hours. Special days or holidays shall be verified by Facility Chief Engineer and approved if work is to take place on one of these days. Scheduling of work must be coordinated and approved by GSA. Note that some high-security office spaces may require escorts even if personnel have HSPD-12 clearance (contractor not responsible for paying for escorts, but must provide notice and cooperate with escorts)
	17	What hours are installers allowed to work onsite during weekends?	Building occupied hours are from 6:00am thru 6:00pm M-F. All major work that may disrupt Government occupied spaces shall take place during unoccupied building hours. Special days or holidays shall be verified by Facility Chief Engineer and approved if work is to take place on one of these days.
	18	Are there any costs or fees billed to the contractor for night/weekend work (to pay for additional security or supervision by facility manager staff)?	Some locations will require government escort, but the government will cover the cost of this. Contractor must cooperate with the escorts.
	19	How much notice is required to schedule work on night or weekend shifts?	About two weeks notice. Advance notice is particularly important for work in occupied spaces (e.g., VAV work). In mechanical rooms there is more flexibility, but reasonable advance notice is necessary. Two-week-ahead scheduling should be the normal practice.
	20	The existing DDC N1 network uses Ethernet over coaxial cable. During the project, this will be abandoned so that new Ethernet over CAT-5 cable can be used. Is demolition of the (e) coaxial cable required?	Demolition of coaxial cable not required and can be utilized until lighting Ethernet network cable is complete. Coaxial cable should be protected and left in place at the end of the project.
	21	Will a sequence of operations be provided for each AHU?	As part of design process contractor shall provide detailed sequences of operation for review. These sequences shall be based on sequences provided in the specification 15958.
	22	Will a sequence of operations be provided for water plant?	As part of design process contractor shall provide detailed sequences of operation for review. These sequences shall be based on sequences provided in the specification 15958.
	23	Should (e) pneumatic valves remain (and be controlled through DDC electropneumatic transducer), or should the actuator be retro-fitted with an electric actuator, or should the entire valve be replaced (scheduled water shutdown or isolation valves required)?	Contractor shall use Belimo (or equivalent approved alternative) conversion kits to convert the pneumatically controlled valves to electric and shall replace the pneumatic actuator with a DDC actuator. New valves are not required.
	24	Is it true that all computers will be provided by the owner (even server-class computers i.e. DDC graphics Swebserver)?	GSA will provide a new server, laptop and client workstation computers. Spec sheets have been posted for the server and OWS computers. Laptop spec is not known yet, but will be a standard Windows XP laptop.
	25	Should the main DDC system webserver be N+1 redundant?	No
	26	Should any critical system controllers be N+1 redundant?	No
	27	How many hours of training should be provided?	Training requirements listed in specification 15959 3.11
	28	Should the bid bond cover the base bid, or the base plus all alternates?	The bid bond needs to cover the base bid, not unit price items.
	29	How much is the fee, per employee, to apply for required security clearance?	There is no fee
	30	The spec calls for a licensed P.E. on staff - can the P.E. work for a subcontractor?	Yes, The PE can be a subconsultant
	31	What is the location where the new differential pressure sensor should be installed (at furthest heating hot water coil, per spec page 21, bullt 4)?	To be determined during the design phase
	32	Should the new (2009) JCI FCE-based control panels in the Chiller room and Cooling Tower penthouse be replaced with new controls, or left as existing?	Remove all Johnson components and return to GSA (see response above). All HVAC must be functional on either the new system, or the Johnson system, throughout the project to provide service to occupants.
	33	The spec calls for a new controls on all systems except VAV boxes. We walked the AHU, CHWS, CWS, & HWS systems onsite. What about other smaller systems, like FCU (fan coil unit), SS (split systems), CRAC (computer room air conditioners), EF (exhaust fans), and other miscellaneous? Are they in scope, and will we be provided with any details (quantities or locations)?	All such equipment currently on the Johnson Metasys system must be on the new system. Note that there are a few stand-alone units serving agency loads not on the Johnson Metasys, and these can remain stand-alone.
	34	Pre-Bid Documentation for TAB unit pricing purposes.- In order to present a competitive bid more documentation is required for TAB work. We need to see plans which show mechanical schedules and typical mechanical floor plans to accurately assemble unit pricing as required for ADD Alternate #1A, ADD Alternate #1B, ADD Alternate #1C, ADD Alternate #2, ADD Alternate #3 and ADD Alternate #4. Please provide existing design documentation or existing as-built documentation for pricing purposes.	We have made mechanical documents available.
	35	All pneumatically controls valves and air handling unit dampers motors are to be converted to electric. Does this also include the air handling units' supply and return fan isolation dampers?	The Isolation Dampers were previously used for volume control prior to VFD’s being installed, these dampers are now sequenced as Isolation Dampers and the pneumatic actuators should be converted to DDC actuators
	36	Will the Contractor be provided identification badges, card access and keys to perform his work alone? Or if an escort is required, what is the methodology for accessing and leaving work spaces?	Yes, for work in mechanical spaces. Access will be arranged to tenant areas. Some tenant areas will require escort. Where escorts are used, workers will need to be in view of the escort(s) unless they leave the controlled space.
	37	Will parking on site be allowed for both day and night work?	There is no parking available during the day, except for deliveries to the dock (truck cannot remain). At night/weekends one or two spaces may be available with prior permission. In general, contractor should not plan on employee parking at the site. There is typically street parking around the building available after hours, and there is a commercial parking garage across the street.
	38	Will the GSA provide a complete valve schedule for all of the existing valves on site to be converted to electric?	We have provided control as-builts and points list.
	39	Will the GSA provide an updated points list as discussed in the bid kickoff meeting?	We have provided control as-builts and points list.
	40	Will the GSA provide a mechanical plan view of all mechanical rooms (air handler rooms, boiler room, chiller room, etc.) and controls drawings of the existing site conditions?	We have provided mechanical equipment schedules.
	41	How many chilled water fan coil units (elevator rooms and 24 hour spaces) are there to be converted to DDC?	There are two fan coils serving the elevator machine rooms that need chilled water valve actuators changed to DDC. AHU-NP-2 and AHU-SP-2.
	42	Information not given in drawings / specifications & Interpretation of specifications- Can we have another site visit to confirm the existing conditions and systems? Please confirm that new “Smoke Evacuation Panel” specified in 3.1.5 is not a Fire Fighter Override Panel and is not subject to UUKL 864 requirement.	Additional site walk scheduled for Friday 2/5/10 at 10am in the lobby of the North tower. Panel is not subject to UUKL.
	43	In the second paragraph of the Project Scope of Work, Section 3.1.2, it states that the "contractor shall use Belimo (or equivalent approved alternative) conversion kits to convert the pneumatically controlled valves to electric". In the Product section, 2.2 Control Valves, it states "All pneumatically activated control valves shall be replaced with Direct Digital Control actuated valves". Are we to replace the actual valve, or convert the existing valve with the conversion kits?	Valve replacement not required.
	44	It is our understanding that GSA shall be supplying the computers for the server and workstations for security control purposes. Will GSA also be supplying the notebook for the Portable Operator's Terminal? Who is responsible for supplying the laser and dot matrix printer?	See comments above. Contract must provide the printers; GSA is only providing the computers.
	45	Are there any product specifications/requirements for the gas meters and the BTU meters? Are there suggested manufacturers?	Gas meter accuracy: +/-2% of reading across full range including interface with BAS. BTU meter accuracy: +/- 3% of reading across full range, Onicon or equal. All meters must be integrated with the BAS.
	46	Are we to assume the motors that VFDs will be added to are VFD rated, and will require no modifications be made?	Yes.
	47	Currently, the Johnson System controls the Stairwell Pressurization Fans. The fans are activated either through the fire alarm system, or the Firemen's Override Panel. How are the Stairwell Pressurization Fans to be controlled by the upgraded automation system? Will there be any fire alarm inputs?	The stairwell pressurization fan control shall not be part of the controls upgrade.
	48	Will there be an additional points list provided? There are points on the system which currently are not in the points list or drawings such as 13th, 14th, 15th and 16th floor vent fans and the CAC units.	GSA will upload control as-builts and points list. Contractor is responsible for all systems currently on the Johnson system.
	49	Section 3.1.1 Summary Scope of Controls Upgrade states that "the project incorporates removal of the entire Johnson Metasys Control System". Section 3.5, A. states that the "Contractor shall perform due diligence to determine products can be reused and are compatible with the new BAS". We have found that the new chiller controls are compatible with the BAS we are proposing. Can they be reused?	All Johnson controllers are to be removed and returned to GSA except as necessary to operate VAVs that are not replaced (see comments above). Control components such as sensors and actuators may be reused; Contractor is required to test such retained components and notify GSA if there are problems with them.
	50	Can we schedule another site visit?	Additional site walk scheduled for Friday 2/5/10 at 10am in the lobby of the North tower.
	51	Can we have an extension of the bid date to Friday 12th, 2010?	No, unfortunately scheduling does not permit us to do this.
	52	Can you provide the contractors with a complete points list and list of equipment, including number of valves and actuators to replace?	We have posted the complete Johnson as-builts and points list.
	53	Please verify explicitly which AHUs the contractor shall convert pneumatic to DDC?. Is this to include only those "Main Air Handlers" outlined in Table 2.3.1 or all AHUs, Elevator, room/Machine room AHUs and FCUs, etc.	Table 2.3.1 lists the main air handlers to be converted to DDc actuators, Additional units include two fan coils serving the elevator machine rooms that need chilled water valve actuators changed to DDC. AHU-NP-2 and AHU-SP-2.
	54	Please verify explicitly whether the contractor is to replace just pneumatic valve actuators with conversion kits, or whether the contractor is to replace the entire valve itself?	Contractor shall use Belimo (or equivalent approved alternative) conversion kits to convert the pneumatically controlled valves to electric and shall replace the pneumatic actuator with a DDC actuator. New valves are not required.

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