Q&A.docx

Attachment #4 - Amendment #0001 - Requests for Information (Questions and Answers)

1) Question: X/Y/Z are which measures (height, length and depth) and is there a possibility to exceed the dimensions since 4 compressors are requested?

Answer: X is width, Y is length and Z is height and they are the maximum dimensions allowed, (due to space limitations), a difference of 5 cm max can be acceptable.

2) Question: One compressor is enough for each circuit?

Answer: The chiller shall be provided with 4 compressors, 2 compressors for each cooling circuit.

3) Question: What is the meaning of “refrigerator complete with panels to cover batteries and headers”?

Answer: The chiller shall be fully protected and closed with lateral covers and panels. The protection panels are required for technical reasons.

4) Question: There is a requested external accumulation of 600 liters, can it be provided along inside the group?

Answer: Technical specifications require “Outdoor thermal wheel” and it shall be provided separately.

5) Question: What is the description of Heat/Cold Exchanger?

Answer: The equipment is a heat pump chiller, in particular the technical specifications require that: “the chiller shall be equipped with at least two exchangers interconnected in parallel, with ball valves and with accessories for a by-pass operation, one for each circuit”. This means that the chiller shall have 2 gas/water exchangers on the cooling/heating circuits, with the possibility to operate with both the exchangers or, with a single one if needed.

6) Question: Are the measures indicated in the technical specifications mandatory?

Answer: The dimensions provided are the maximum dimensions allowed due to space limitations, however a difference of max 5 cm can be acceptable.