AMEND BANDON 0002

QUESTIONS AND ANSWERS FOR OR-BANDON MARSH NWR-HVAC- 140FF027Q0020

1. Duct cleaning (SOW 2.C): Is the existing duct system sheet metal or fiberglass duct board? If it is duct board, cleaning can damage it. In that case, is cleaning still required, or may the contractor skip cleaning or replace those sections instead? ANSWER: Contractor must take care not to damage duct work. Cleaning of ducts is required. If any ducts are damaged by the contractor, they must be replaced.

2. Balancing dampers (SOW 2.H): Does each supply run already have a manual volume damper? If not, should the contractor include adding dampers so the system can be balanced?
ANSWER: Contractor should verify dampers in current system. Contractor shall balance the unit to ensure there is enough airflow to each room, including adjusting or adding dampers and fan speed as needed.

3. Duct sizes: The design plans show airflow (CFM) for each room but not the existing duct sizes. Can you share the existing supply duct sizes? For example, the bedrooms call for 200 CFM, which usually needs a 7-inch run, while rooms that size often have 6-inch runs. Is resizing supply runs part of the scope, or should the contractor balance to the existing ducts?
ANSWER: Contractor should verify existing duct size to determine if new unit is compatible with existing supply runs or replace runs as needed to balance the system.

4. Parts warranty (SOW 2.F): Many manufacturers cut the standard parts warranty from 10 years to 5 years when the equipment is registered to commercial or government-owned property. Will the Government accept the manufacturer's standard warranty for this application, or must the contractor provide 10-year parts coverage another way (for example, an extended warranty)?

ANSWER: The Government requires a minimum 10-year parts warranty in accordance with SOW Section 2.F. If a manufacturer's standard warranty for a commercial or governmentowned facility is less than 10 years, the contractor may provide additional coverage, such as an extended warranty or equivalent arrangement, to satisfy the 10-year parts warranty requirement.