265 266
D D
ID8.1/30
Voided item
R R
L1.01
Plan indicates light fixture being located off site, outside property boundaries.
SCB to Issue to Landscaping for Review and Comment
Detail #1 - No landscaping on roof at SW corner. Remove landscaping under overhang, adjacent to pool. R
267 268 269 270 271
D D D D D
L1.02 L1.03 L3.01 L3.02 L3.03
SCB to Issue to Landscaping for Review and Comment SCB to Issue to Landscaping for Review and Comment SCB to Issue to Landscaping for Review and Comment SCB to Issue to Landscaping for Review and Comment SCB to Issue to Landscaping for Review and Comment
Raised planter bed? Reduce step in structure?
R R R R
Delete irrigation system at ground floor and replace with a hose bib.
Delete irrigation at pool deck level. Provide hose bibs.
Delete irrigation.
LEED – besides the impact identified at Plumbing Fixtures….it is not noted anything about energy star appliances? Or the electrical requirements at the appliances. In general who will be integrating all of the LEED requirements into the design? SCB or GLP?…..if SCB then we need to make sure and ask that it happens for the interiors NOW. For instance: low emitting under Mats and Resources for millwork and cabinets? R
X
SCB to Review GLP Drawings for LEED Comments. DAC working with Appliance Vendors for Energy Star Compliance
272
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LEED
Current LEED checklist shows (2) innovation in design points. Please advise what is intended approach to achieve these credits.
273 274
18113 D
LEED LT102
R R
SCB to Clarify
D
Show lights in the multi-level corner at garage.
Light switch developing. To issue Revised Drawings Daccord - Leave fiber optics to remain on drawings. Alternate for LED. Team Discussed Light switch to show deleted fixture Team Discussed. Light switch shows the reduced fixture count. LCI to follow drawing Lower standard shower door 6" and make stone tile at ceilings an Upgrade Cosentini to review. OK with shortening duct. Drawings to Reflect Shorter Duct Run Cosentini - ComEd may not be OK with natural ventilation. To be verified. LCI was directed to not price this alt.
275 276
D D
LT105 LT106
Fiber optic pool lighting. Is there a lower cost option.
R R
Delete linear fixture in the unit entry.
277
D
LT106
Reduce the number of down lights.
R
Is stone tile required at master bathroom shower ceiling? Please advise. We couldn't locate this info on drawings. R Basement can we reduce the return duct by shortening the runs close to exterior wall of each room. Please confirm R
278
D
LT-106/A7.06
279
D
M2.00
280 281
D D
M2.01 M2.05
What is the ComEd alternate ventilation?
R R
Shows 1” Natural gas pipe running in garage ceiling for outdoor pit
Correct. SCB to identify on Arch Drawings
Team discussed adding additional baseboard heat would be prudent as high ceiling diffuser might create thermal discomfort at Floor Level. Ownership to advise if an alternate should be considered
282
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M2.05
Is base board heat required at windows?
R
A4.01 A is conflicting with M 2.07 for number of risers and "M" drawings shows Gas Feeder 1-1/2 “riser, do we need 1” line connection for each residential unit and then reduce it to ½” connection for each BBQ grill? Please also confirm following. a) Natural gas riser for outdoor balconies is 1-1/2”? b) Is natural gas feeder (1”) for each balcony is in ceiling or in slab? c) When we reduce size from 1” to ½”? At exterior wall? R Shows “self regulating slab neutralization cables by Tyco on level 15 balcony ceiling above insulation” & “Provide electric floor heating mat by Raychem on level 11,15 & 21” Please confirm we need self reg. cables and heat mat for all South residential units and for all North residential units we need only floor heating mat. R Current documents indicates four FCU units in lieu of three units in south units. Typical floors will have seven FCU’s in lieu of six. R Drawings indicates return duct work in each residential unit in lieu of return grill by FCU’s. R First Floor AHU & PIPING a. We have noticed that this unit has an electric reheat coil called out. Perhaps changing to a hot water coil will reduce the electrical load/gear/etc. This will add piping, but there are already speed risers going to the basement for other piping. If the units in the basement are converted to electrical, there would be a savings in piping. b. As the design stands, there is chilled water going down to this unit. Perhaps installing a remote condensing unit with louvers in the pool equipment room would be beneficial. Piping from the roof would no longer be required (to be discussed later) and we could recover the heat from the condensing unit to heat the pool. Three notes that we had on the piping system. First, as discussed above, there is the possibility to change all hot water heat to electric heat. This will reduce the usage of the hot water speed risers. Also, we can incorporate a remote condensing unit into the design of AHU-1. c. This will eliminate the use of the chilled water speed risers for this purpose. Finally, convert the reverse return to a direct return system. This will eliminate the final need for speed risers R Shows six (6) natural gas risers for residential unit serving cook top and dryers in each residential units, as per Architectural floor lay out (refer A2.06 ) for typical floor lay out , we believe we need only two risers for North residential ( one for cook top & one for dryer) and one riser for south side residential unit . ( as show on M3.04) our estimate includes three risers. Please confirm. R
X
What is shown on M2.07 is not correct. Cosentini will correct riser diagram. Ownership and Daccord challenged the inclusion of this item. SCB indicated a strong position for the inclusion. Ownership requested LCI provide budget amount for this item. Added fan coil for south unit for cooling.. Cosentini Explained this was for cooling load considerations, SCB and Cosentini indicated return on fan coil unit.. Drawings to be modified to show this condition. Line item response a. Electric coil provides freeze protection Line item b. Team agreed due to energy modeling concerns this would be difficult to pursue.
283
D
M2.07
284
D
M2.07
285
D
M2.07
286
D
M2.07
287
D
M3.02
See Item 280
288 289
D D
M3.04 M3.04
Noted - Cosentini to Provide on CD Documents Is this belt and suspenders. Cosentini to review.
Additional piping & metering for (2) future retails
R
MAU-1 has (2) heating coils. The preheat coils has a rise from -10F to 75F and the reheat coil has a range of 55F to 78F – do we really need this. Please confirm R Note 13 of the chiller schedule says “Pre-approved manufacturers include Carrier and Arctic Chill”. The problem with this is the Arctic Chill is a very expensive custom chiller and Carrier is not. Therefore, Carrier will get the order at a premium so you really aren’t getting a competitive price. R Reviewing the boiler plant, it seems that there is redundancy built into the plant. If so and it is an N+1 design, may we suggest that the design be changed to a 66% design. Meaning, if one boiler fails the building will still have 66% of the engineered capacity. Given that there are fewer design cold days than anything else and that diversity isn’t usually figured into heating, the building will most likely maintain temperature within a few degrees with the 66% design. b. Another design that we feel can both cut first costs and still maintain an efficient plant is to create a hybrid plant. The design is for the system to allow for the majority of the year to run with a fully condensing boiler at the proper temperatures. The second boiler would be a non-condensing boiler that would run with a thermostatic mixing valve to take care of the peak months. The mixing valve will protect the boiler and still allow for the 100 deg F return water temperature. Proper engineering will need to be reviewed with this option. R As with the boilers, 600 Tons seems like there is redundancy in an N+1 fashion. Consider changing the chiller plant design to (2) 66% capacity chillers. This will reduce tonnage as well as weight. b. Boiler Plant a. Air Cooled Chillers a. Another design suggestion is to raise the delta T on the chiller system to 14-16 deg F. This will reduce piping size and reduce pumping as well. On the flipside, the coils will all be slightly larger, but the overall installed cost should go down. R Can we feed the condo gas risers from the bottom instead of the top that way the riser can be reduced in size? R
290
D
M4.01
Cosentini and SCB to indicate the Carrier Unit as Base with Prescriptive Acoustic Requirements for Alternate Chiller Types when Bid. Not 100% redundancy. Can we cut a boiler out? Cosentini to review but indicated this is NOT N+1 and current design takes into account diversity.
291
D
M4.02
292
D
M-General
To much cooling based SF. LCI / Cosentini to verify. Again Cosentini advised this is not currently N+1 design.
293
D
M-General
See Item 283
294
D
M-General
Not required.- Closed. To be removed from Documents
295
D
M-General
Do we need natural gas booster pump?
R
Garage is unheated, though stairs cannot freeze. Cosentini to review. However discussion is because garage is now not heated total kw might be a wash just redistributed Daccord directed to be removed. Cosentini to remove from Drawings
M-series drawings show 10 KW & 15 KW in basement and in stairs area. This seems excessive? Typically we use 2KW to 5KW. Please confirm. Why do we have a trench drain at the bottom of the ramp? Can the ramp drain into the gutter?
296
D
M-General
R
297 298
D D
P2.01 P2.05
R R
Voided item
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