Final Bid Questions and Answers.docx

Bidders Questions and Answers Question : On this one it states no Inline heaters accepted. May I get an explanation as to why they are no longer acceptable? Is there a certain brand or sped. NNSY in hand they can share that has what your asking for?

All the rest of the spec is written just like prior jobs only that term was added??/ Unit must provide at least the following heating capacity. In-line heaters are not acceptable.

4.11.1. Power Requirements: 460 V/ 3 phase/ 60HZ

4.11.2. Provide a minimum of 60 kW heating capacity

4.11.3. Input Rating: 200,000 BTU or better

4.11.4. Air Output: 5,000 CFM minimum

4.11.5. Temperature Control: 40 F Temperature Rise minimum

4.11.6. Thermostatic Controller: Heating and cooling elements must be thermostatically controlled Answer: We received in line heaters on a previous project and we did not have room for them. We ended up running out of space and ran into trouble trying to find a places for those heaters. If they are within the units that is fine. We just not separated ones, if that makes sense.

Question: We had a question regarding this is it okay if we quote the 80T units, the unit meets all the requirements for installation and exceeds the performance requirements.

Question: Will it be an issue that it is not a “65-70T” unit? Our fleet just jumps from 50 to 80.

Answer: 80T units should be fine to support.

Question: First of which is the solicitation calls for four outlets on each unit and our unit has three, is it possible to attached a splitter to one of the outlets to provide the fourth outlet? Our second questions is, the unit we have in mind to bid is a 80 ton AC with internal heat which exceeds the cooling requirement of 65-70 tons, is this acceptable? I have attached our spec sheet for reference.

Answer: 80T unit is fine, for the splitter I am reaching out to our mechanics to see if we can, so to be determined.

Question: I was reaching out to see if there's a site visit available for solicitation N4215826RS002GJ.

Answer: No.

Question: Are monthly technician checks required?

Answer: Per Step 6.4 and 6.4.1 in the SOW its required to perform preventative maintenance per the manufacture maintenance schedule. Must provide a monthly report to the COR on preventative maintenance perform.

Question: I do not see any power cable or AC duct requirements in the RFQ. Can you confirm no cable or duct needs to be provided?

Answer: Cable and duct don’t need to be provided.

Questions:

Bid Details

1. When is the bid due and award? Please see the stated date on this solicitation.

Application & Environment

1. What is the building type and occupancy?

1. The units will be outside supplying to a boat and occupancy varies.

1. Can you briefly explain the application (e.g., comfort cooling/heating, dehumidification)?

1. General A/C.

1. Please describe the environmental conditions to help us understand the appropriate maintenance schedule and filter change frequency.

1. It will be outside in an industrial area. It will be per the equipment’s manufacture preventative maintenance schedule.

Equipment Location & Access

1. Where will the units be located? Will our technicians have easy access to them?

1. Technicians will have access, the location of each unit will vary.

1. What is the approximate distance from the building to the unit(s)?

1. Varies based on how duct will be run but it will be close.

1. Are there any challenges related to the duct runs (vertical runs, bends, etc.)?

1. Yes but contracts are not required to run ducting.

1. Is there adequate space around the units for performing regular maintenance?

1. Yes

1. Are the units constant volume?

1. Must be able to operate 24/7 the supply amount will change through the rental time. Not all compressors will be running at the same time, one may be staged and utilized as needed.

1. Controls & Installation Responsibilities

1. Please clarify Section 4.5 – is a control system required on the unit?

1. The system is required to have a thermostatic controller it is in Section 4.11.

1. Who will be responsible for electrical tie-in: the owner or the contractor?

1. NNSY will assist with the tie in and equipment need to meet the electrical connection requirement Appendix “A”.

1. Who is responsible for providing and laying out the ductwork: the contractor or the owner?

1. NNSY will be running duct.

1. What is the approximate length of the duct from the unit location to the building’s supply/return connections?

1. Not required.

1. Site Logistics

1. What parking is available, and how far is it from the unit location?

1. Parking is available but it’s a 10/15 min walk to the location of the units.

1. Is there access to fresh water and power near the units? If so, what is the approximate distance to each?

1. There is yes there is and within 100 feet this change based on space availability.

1. Can we use eco-friendly coil-cleaning chemicals if needed?

1. As long as its not introduced into the air system.

1. We expect to visit weekly for maintenance—what is the process for base access? Will an escort be required each time?

1. Maintenance is per the equipment manufacture preventative maintenance schedule in Section 6.4.1 Contractors shall provide a monthly report to the COR on preventative maintenance performed.

1. Will rigging be provided by the owner? Will the units be moved by forklift or crane?

1. Yes and most likely crane.

1. Can you confirm the 400 amp electrical service is (1) each per AC unit?

Yes

1. Our equipment that closest fits this is variable up to 80 tons each and can meet the airflow requirements with (3) outlet duct connections in simpler configuration than the (4) specified. Can you confirm this is acceptable?

1. We are required to have 4 connections.