HVAC questions and answers.pdf

Question Response

Will the bid due date be changed to a date later than September

6th, 2022?

Yes, the bid due date and time will be changed to

9/12/2022 8:00AM CST

What are the dimensions of the elevator shaft (height and width)?

The elevator door entries are 60 inches wide and 84 inches tall. The hoist way is ten feet wide by ten feet deep with no overhead interference.

Will the elevator go below the lever/floor that the chillers are on thus allowing full access to the shaft ABOVE the elevator when it is in its lowest locked-out position?

Yes, the elevator will go to the Lower Level which is one Floor below the Upper level where the Chillers are located.

Are there any hydraulic lines or cables that obstruct the space in the elevator shaft?

There are no hydraulic lines or cables that will obstruct the space in the elevator shaft. All lines are below the elevator car.

Does the elevator shaft open completely to the top on the roof without structural modifications? No, the only access is through the elevator doorways.

Please confirm that the 10 ton DX unit in the IT room stays in place

Yes, the 10 ton DX unit in the IT room will remain in place.

Will one chiller support the cooling demands of the facility while the other chiller is being replaced?

Yes, one chiller will support the cooling demands of the facility while the other chiller is being replaced. We only run one at a time currently.

Is temporary cooling (temp chillers etc) required if 1 of the chillers will not support the facility while the other chiller is replaced?

This is not needed since one chiller will support the facility.

Is the facility under a

BAS/Controls contract and who is the current BAS/Controls contract with (Johnson Controls, etc.)? Native energy handles BAS.

Are there any special crane lift plans required that are unique to

FEMA?

We do not have any critical lift plans here at FEMA.

Please be aware of the elevator below and must be operated by a qualified operator.

Is there a drawing that shows the routing of the refrigerant lines for the 10 ton DX system in the IT room?

No there isn't any plans for this. They do run through the dropped ceiling to the NW stairwell and then up through the Gun Turret.

What is the Chiller tower - height and weight? The chiller tower is not involved in this project.

Is it possible to get an additional site walk just for controls in the next few days? No additional walk through is scheduled

Will all AHU’s need VFD’s? No this is not part of the scope of this project

Is this an RFP or RFQ solicitation and is bid bond required

This is an RFQ. No Bid Bond is required but clause

52.228-15 is a performance and payment bond which is included in this solicitation.

Do both chillers operate concurrently or is one fully redundant

One chiller is redundant. They both can operate at one time, but one is only needed.

Please confirm there is no glycol in the existing chilled water system There is no glycol in the existing Chilled water system.

For the purposes of bidding, is there an existing refrigerant monitoring system to be considered existing-to-remain?

There is an existing refrigerant monitoring system and it will remain.

Are there any specific hydronic specialties (makeup water valve, water treatment feeder, etc.) that are desired to be replaced?

There are no existing specialty valves desired to be replaced.

Are there any specific isolation, warranty, or manufacturer requirements for the chillers?

We will want a manufacturer warranty on the chillers and a one-year return to verify that the chillers are functioning as expected.

Are there any locational constraints on where the new

VFDs will go?

We want the new VFDs located in the same place that the existing VFDs are located.

What style are the existing outside air fans that need to be replaced and where are they located? Since these were not addressed during the site walk, could photos be provided of the existing fans?

They are a solid vane squirrel cage with VFD drive to adjust airflow. They are located in the equipment room next to chiller #1.These were addressed during the site walk and are on the SOO. Photos can be sent at later date.

Are any of the electrical/server rooms in the project scope besides the main server room?

No, the extra electrical/server rooms will not be in this scope of work.

Are there restrictions on locating equipment outside, such as a condensing unit for the server room air conditioner?

Yes, we would like to have the new condensing unit located in the same place as the existing condensing unit.

Is it allowable for the new control system to be accessible via the internet (with restricted user access) or does the new control system need to be hardwired locally on-site?

The new control system needs to be hardwired for security purposes.

Are there any programming language restrictions or open system requirements for the new control system?

As long as they are compatible with a laptop there are no restrictions.

Please confirm the new control system will only control equipment located in the FRC.

Please provide a list of equipment to be controlled by the new control system?

No, it will control the FRC and both VSAB buildings.

The equipment that will be controlled is:

11 fan boxes upper level

9 fan boxes lower level

2 chillers

2 outdoor intake fans VFD drives

1 cooling tower

Equipment list for VSAB

9 fan boxes MERS area

16 fan boxes Upper VSAB

2 chillers

2 Air handler units

1 boiler

Requesting building As-Built and

Mechanical Room As Built?

The only drawings that we have will be on the

SAM.Gov site.

What is the Liquidated Damages for this contract since it’s a construction contract and to protect the government because a contract of this magnitude?

The Government believes that its interests are adequately protected given its monitoring of the work, (2) termination rights, and (3) the payment structure of the contract

Would the government entertain a design clin, a clin for install since it’s a design build a bonding Clin?

No additional CLINs will be awarded under this solicitation

Does the government have an

A/E onboard to review the design and approve it at 30% and 60% and 95%? The Government does not have an A/E onboard.

Would the government take into consideration for the long lead time on the equipment once the submittals are approved?

The 365-day period of performance will be given due to the consideration of the long lead time for the equipment.