NYC 9/11 Public Portal Document
The ITEM Supply Fan is usually associated with an Air-handler, which has components such as
dampers, filters, and heating/cooling coils and motor-fan assembly. All these components should be
cleaned and the filters replaced. Unit costs for each of these ITEMS should be given and referred to In
21Central Ventilation System.
My suggestion for unit pricing for leaning package unit is to use tonnage. As a rule-of-thumb, there are
400 dm/ton.
Provide MSDS for Encapsulation ITEM
Fresh Air Plenum should be $/ft2 instead of Per cu ft.
What type of Access Hatches; Cam lock, hinged door or panel?
Once the UNIT PRICES on the ITEMS have been further detailed, these ITEMS should also be given
ITEM numbers and provided in a new price list.
Have the cleaning contractor give you several Supply & Exhaust System cleaning cost estimates for
several systems In order to gain familiarity with the UNIT Pricing method.
Call me on my cell If you require further assistance
David
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NYC-WTC 000135305
OCR can misread numbers and units. Confirm readings against the page image before using them.