Confirm the can be run in and do not require full control AHU’s “hand” by the Building Automation System? The AHU's can be run in "hand" on Monday morning, with controls installation and set-up to follow that week. Confirm the existing fire alarm system is Simplex 4100 V? It is Simplex 4100U. Confirm the elevator does not provide access to the roof or penthouse and the only walkable access is through the flight of stairs from the 26th floor. Confirmed. Confirm all existing are externally spring isolated without base AHU’s rails. Confirmed. Will the replacement units be placed on external spring isolators, directly on the floor or on a concrete pad? If on concrete pad, please indicate the designed height of the pad. If on external spring isolators, confirm that internal isolation of the fans is not needed. If the units are not placed on confirm that of external spring isolators, internal isolation the fan is required. Additionally, confirm that the AHU manufactures are responsible to increase base rail height in order to accommodate trap height. New AHU's will have baserails and shall be installed on neoprene waffle isolators. AHU manufacturers are responsible for increasing base rail height in order to accommodate trap height. Confirm the location of the multizone dampers, are they to be duct mounted or factory mounted on the AHU’s? Duct mounted at AHU discharge, and coordinated with ductwork. Clarify the timeline for the AHU field leakage and deflection testing. Is this required before starting up the units on Monday Morning? No. This is required prior to substantial completion. Section 6.1 and 6.2 of the Pricing and Deliver Schedule does not provide a location for Level 10 AHU base bid pricing. Please provide a location for Level 10 base bid pricing. Please see the revised Pricing and Delivery Schedule below. Spec section 23.09.00 1.1C states the controls pricing shall be submitted directly to the general contractor for the project. Please confirm controls can only be carried by the general contractor and not the mechanical contractor. Confirmed.
Confirm the AHU’s can be run in “hand” and do not require full control by the Building Automation System? The AHU's can be run in "hand" on Monday morning, with controls installation and set-up to follow that week. Confirm the existing fire alarm system is Simplex 4100 V? It is Simplex 4100U. Confirm the elevator does not provide access to the roof or penthouse and the only walkable access is through the flight of stairs from the 26th floor. Confirmed. Confirm all existing AHU’s are externally spring isolated without base rails. Confirmed. Will the replacement units be placed on external spring isolators, directly on the floor or on a concrete pad? If on concrete pad, please indicate the designed height of the pad. If on external spring isolators, confirm that internal isolation of the fans is not needed. If the units are not placed on external spring isolators, confirm that internal isolation of the fan is required. Additionally, confirm that the AHU manufactures are responsible to increase base rail height in order to accommodate trap height. New AHU's will have baserails and shall be installed on neoprene waffle isolators. AHU manufacturers are responsible for increasing base rail height in order to accommodate trap height. Confirm the location of the multizone dampers, are they to be duct mounted or factory mounted on the AHU’s? Duct mounted at AHU discharge, and coordinated with ductwork. Clarify the timeline for the AHU field leakage and deflection testing. Is this required before starting up the units on Monday Morning? No. This is required prior to substantial completion. Section 6.1 and 6.2 of the Pricing and Deliver Schedule does not provide a location for Level 10 AHU base bid pricing. Please provide a location for Level 10 base bid pricing. Please see the revised Pricing and Delivery Schedule below. Spec section 23.09.00 1.1C states the controls pricing shall be submitted directly to the general contractor for the project. Please confirm controls can only be carried by the general contractor and not the mechanical contractor. Confirmed.
Addendum%201_RFP%20744-R1802%20UCT%20AHU%20Replacement%20and%20Level%2010%20IAQ.DOCX