FA303022Q0046 B3420 Chiller Rental QandA.pdf

FA303022Q0046 B3420 Chiller Rental Q&A

Question Answer

Are funds readily available for the project and is payment net30 after invoice electronic submission?

Funds are readily available for this contract.

FA303022Q0046 is a service contract and payment will be made within 30 days after submitting an electronic invoice.

Many companies do not carry 15 ton chillers.

Are 20 ton chillers acceptable?

A 20 ton chiller is acceptable.

What are the hose and cable length requirements/needed for the bid?

The length of hose and piping is min 20 feet max 30 feet depending on where the chiller is placed.

Will the pump be provided by the DoD?

The chiller will be using the DoD pump. The DoD is not providing a loss of flow switch to protect the contractor’s chiller.

Will the chiller be placed on the pavement or on a trailer (provided by the contractor)?

The chiller can be placed on a trailer or on the pavement, contractor must ensure that chiller placement does not obstruct operations.

Are there any obstacles within the 100ft.

between the connections of the old chiller to the new proposed location for the temporary chiller?

There are no obstacles blocking the location of the rental chiller and the hook up location.

Can photographs of this area be provided?

Photographs have been provided in the solicitation amendment as an attachment.

Are there any sidewalks or walls between?

There are no sidewalks, there is an open path from where the rental chiller will be placed.

Are there possibilities of the public or personal walking up to or through staging work site?

At the time the rental chiller is being placed on site, personnel will be avoiding the area.

Will the staging site have to be barricaded to avoid personnel hazard or vehicular hazards?

There are cones in place surrounding the existing rental chiller.

Is it possible to drive straight up directly to the existing chiller? Will a crane or an all-terrain forklift have difficulties maneuvering around existing and new temporary chiller's location?

It is possible to drive straight up to where the rental chiller will be placed, it is up to the contractor how they will unload the chiller.

The existing rental chiller should be removed by the time the new rental chiller arrives.

What size and type of piping connections (copper slip connections, PVC slip connections, steel threaded connections, voltaic connections) will be provided by facilities for the chilled water?

The only thing the DoD will be providing is two (2) 2 inch brass female apollo ball valves for connecting the new rental chiller.

What is the flow rate (GPM) of the chilled water system currently? For instance, flow rates of Chill water pump, condenser water pump.

Using this formula GPM = Air side Btu ÷ (measured water Δt x 500) GPM can be determined

Is there a concrete pad available at the proposed location for temporary chiller?

There is an asphalt pad on site where chiller will be placed.

Is there a possibility to get photographs of the work area?

Photographs have been provided in the solicitation amendment as an attachment.

What is the voltage, amperage, and phase of the existing electrical service feeding the old chiller? Can photographs of the name plates be provided?

The information on the service disconnect is 600 volts 60 amp 3 Phase. Photographs have been provided in the solicitation amendment as an attachment.

Will the existing electrical breaker use for the old chiller also be used for the new temporary chiller or will a new breaker have to be provided for temporary chiller? Can photographs be provided of this panel board feeding power to the existing chiller?

The existing service disconnect will be used for the rental chiller. Photographs have been provided in the solicitation amendment as an attachment.

Is the electrical panel feeding the old chiller in the same room? Can photographs be provided of this general area showing the electrical panel and the old existing chiller?

The service disconnect is located with-in distance of the chiller. The distance is 20 feet.

Photographs have been provided in the solicitation amendment as an attachment.

Is this electrical breaker capable to being locked out or do we need to provide a mean of disconnect?

There is a service disconnect

Is the electrical service located outside or inside?

Outside

Will freeze protection on the chiller need to be provided?

The evaporator heaters will need to be wired for protection.

Will this Chiller be operated 24 hours a day?

Even in cold weather conditions?

The chiller will need to run wherever there is a need for cooling to the building. Possibly 24 hours and in cold weather.

Will insulation be required on piping? Will any of this water piping be installed outside?

And will hail guards be required for outside use??

The chilled water pump will be running 24/7, the existing pipes are insulated. The piping from the rental chiller to the tie in ball valves will be outside. The hail guard question will only be needed if the contractor feels the need to protect their equipment.

Is it possible for project to last longer then 3-4 months or shorter then 3-4 months?

According to the posted solicitation the contract is for a base period of 3 months with three additional option months to be exercised if needed

ONE ARE WE USING OUR PUMP?

The chiller will be using the DoD pump. The DoD is not providing a loss of flow switch to protect the contractor’s chiller.

ARE WE HOOKINGIT UP AND DOING

THE ELECTRICAL AND ALLHOOK UP

AND TAKING

OFF INCLUDING ELECTRICAL AND

.... INCLUDING THE PUMP AND

HOSES AND

ALY OCNSTRUCTION?

Yes in accordance with the statement of work, provide and install any and all electric materials needed to connect the rental equipment to the existing electrical on site.