Questiosn with Answers as of 20 Apr 10docx.docx

FA2521-10-Q-0016, Questions and Answers as of 20 Apr 2010

1) TEMPERATURES: Please advise what is intended by “40 to 65°F”.

Chillers are typically designed for a 10°F drop in temperature (i.e. from 54 to 44°F) although they can handle some variation. If the max inlet will be 65F and the min leaving will be 40F and the flow will be such that the ‘drop’ in temperature will be 10-15F; that will be fine. The trouble comes if the chiller would be given a low flow and be expected to drop the temperature from 65 to 40F in one pass.

Answer: Requirement removed

2) Condenser Construction: Aluminum Fins are specified – some chillers today use aluminum ‘micro-channel’ condenser design (similar to an auto radiator design): Would aluminum micro-channel condenser design be an acceptable alternative to aluminum fins?

Answer: Yes

3) TRAILER: Do you want the chiller bolted down to the trailer?

Answer: Yes

4) The chiller mentioned RTAA 100 is not made anymore due to phaseout of the refrigerant R-22 and Trane is making a new unit CGAM100 using scroll compressors will that be acceptable.

Answer: Yes

5) Do you need coating on the coils ? since your facility is on the coast.

Answer: Yes

6) Do you need coil guards ?

Answer: Yes

7) The trailer, does it have dual tandem axles of 7000 lbs each ?

Answer: Yes

Trailer questions:

1. Do you require the stake pockets? If so, are they to extend to the 96” width as part of the outer rail or can they extend outside the 96” width?

Answer: No

2. 102” wide trailers are available at the same cost as a 96” wide unit, do you have a preference?

Answer: Yes, 102”

3. We assume the trailer plug to be a standard 7-way RV connector; if not, what type of connector is on the vehicle you are using to tow the trailer?

Answer: Yes, the 7-way is fine

4. Will 3” C-Channel cross members located on 16” centers be acceptable (since we have to support the 100 ton chiller) instead of the standard 24” centers

Answer: Yes

5. Will L.E.D. lights with sealed modular wiring harness be acceptable instead of standard incandescent lights?

Answer: Yes

6. We assume the trailer must meet all DOT requirements.

Answer: Yes

7. Do you require front and rear leveling jacks?

Answer: Yes

Chiller questions:

1. The solicitation did not require a pump package; please confirm a pump package is not required.

Answer: No required

2. The solicitation did not require isolation valves; please confirm isolation valves are not required.

Answer: No required

3. The solicitation did not require the aluminum fins to be protected from salt fog spray, please confirm standard aluminum fins are acceptable.

Answer: As long as they are coated

4. What type of control signal will be sent to the chiller to turn it on?

Answer: 24 volt

5. We assume the connection to be 4-wire, 3 phases and a ground, no neutral required, please confirm.

Answer: Correct