QAs_Site_Visit_Final.xls
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Spreadsheet containing Q A's for Site Walk held 06 April 2011
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Sheet1
| QUESTION | ANSWERS GIVEN AT SITE VISIT | FINAL ANSWERS | UPDATED SOW PARAGRAPH |
| NOTE: Get electrical information from SABER | |||
| NOTE: Change note #2 and correct drawing on electrical plans per e-mail from COMM. | Done, correction and annotations are on the drawing. I will send updated drawing out to SABER and PK. PMB | ||
| NOTE: Get drawings for 8A, 8C, 9A, 9B and 9C | Done, correction and annotations are on the drawing. I will send updated drawing out to SABER and PK. PMB | These are located on "Existing Offices-South Hall" drawing. PMB | |
| NOTE: Get information on Lektriever heat/load standpoint. | The heat gain from the Lektriever is minimal and should not play a large factor in the HVAC calculations. PMB | ||
| NOTE: Need contact information for the two contractors (Dorsett Tech and Alerton). | I will incorporate this information into the SOW. PMB | Added to SOW para. 3.5 and 5.6 PMB | |
| Will the Government provide a price range for this project? | We have a Government estimate, but it won't be disclosed. | ||
| You’ve asked for design drawings – what level of design are you looking for in the bid? | There are a lot of material submittals, load calculations are for review, construction drawings – we don’t need to go that far with the drawings. | The leading factor on this project is to ensure the mechanical system is capable of providing a comfortable work environment now, but have the ability to meet future lab requirements, with little system modifications, when the time comes. We've asked for a lot of submittals, schedules, engineering/technical data, load calculations and multiple other items so that the government can determine if the proposed design will meet the needs of the government. Basic line drawings are sufficient if the information incorporated in the drawings is understandable and you feel the government will be able to adequately evaluate your design. PMB | |
| Will single lines be sufficient for that? | Yes | ||
| Are these structural columns? | Columns at the site are structural columns and would need to remain in place. The walls that need to be demo'd are not structural. | Attached are multiply drawings of this building dating back to the1940's when it was constructed. The drawings indicate that the structure is supported by the columns and not the walls. PMB | This information can be found on the "Consolidated Tire-Bearing Shop As built" drawings. PMB |
| In the Government SOW under the "Asbestos (All Areas)" Page 3, Item G. The SOW calls for removal of all existing asbestos. Under 4.3 Finishes: West Mechanical Room Entry (Page 8) Item A. The SOW calls for all anchors to be anchored in such a manner as to not disturb the asbestos duct insulation. Is the duct insulation supposed to be removed from all ducting in the new construction area or are there areas that the asbestos is to remain? If asbestos is to remain, please identify the areas not requiring abatement. | The duct insulation (overhead) will not be removed. The lower duct is a return duct, is not insulated so it is not an issue. The upper duct is insulated with asbestos (Asbestos Report, page 2, para. 3 "Hard duct insulation, white (1000' sq.) room 15") and is being left in place, BUT where the air diffuser is located. This diffuser duct will need to be altered/extended to match the new suspended ceiling system. Asbestos needs to be removed only from this area of duct so the diffuser can be moved safely. PMB | Added to SOW in sections: Asbestos All Areas - Item I, 4.3-A and 4.5-A. PMB | |
| In the Government SOW under 3.1 Demolition: Rooms 10A-14 Items A&B. The SOW calls for demo/removal of the existing CMU walls inside the existing rooms, and saw cutting of the existing hall walls. Are the existing CMU walls load bearing walls? If so, will the Government require an engineer to design supports or lintels for the removed walls and saw cut openings? | Attached are multiply drawings of this building dating back to the1940's when it was constructed. The drawings indicate that the structure is supported by the columns and not the walls. PMB | This information can be found on the "Consolidated Tire-Bearing Shop" drawings. PMB | |
| In the Government SOW under 3.1 Demolition: Rooms 10A-14 Items E&G. The SOW calls for demo of existing items back to their source. Is the source the nearest connection, junction box, or main? Will it require demo of other areas and other mains that may not be in use (i.e., will work be required beyond the area described in the SOW)? | ALL ITEMS are to be removed from the area of construction. If there is water piping going to the AHU above the ceiling, all of this piping will be removed back to its originating source (pumps, heat exchanger, culinary water supply) and capped. If this same piping feeds another item that is not being removed then the piping will be removed to this point and the line capped. This way the equipment not being removed will still be able to operate. As for the electrical, all electrical in this area is being removed. This will include removing it back to its originating source (breaker panel), breaker panels are also being removed so all items (conduit, wire, hangers, supports) shall be removed back to the source that supplies the breaker panel. If other areas have there source of power coming from the panels that will be removed then the new panel will need to be installed and these circuits will need to be rerouted to the new panel and then the old panel can be removed. PMB | ||
| In the Government SOW there are several areas that call out for all construction materials to be submitted. Are these items/submittals going to be required with the proposal package or just the specific items called out at the bottom of page 1 in the SOW. | Submittals will be required with the proposal package. The revised SOW will clarify which submittals will be needed with the proposal. PMB | Updated in the General Requirements of the Statement of Work. PMB | |
| In the Government SOW there are several areas that call out for the HVAC/Mechanical systems to be designed so humidity control can be added in the future. Is the contractor going to be required to install DDC controls that include humidity controls or is the contractor supposed to provide additional points for humidity controls? Is the mechanical going to be required to install piping/controls for future humidity or just connection points? Are the humidity requirements for supply humidification and dehumidification? | Humidity controls will not be needed at this time. The contractor may design a system to include addition points at this time, please identify this within your proposal. The DDC system should be designed in such a manner that additional cards/panel may be added in the future to accommodate humidity control. Future humidity will come from a stand alone system so no connection points or piping/controls will need to be included. The HVAC system should be designed to accommodate dehumidification, reheat coils should be sized accordingly to provide desired discharge air temperatures. PMB | ||
| In the Government SOW under 3.5, 4.5 & 5.6 HVAC/Mechanical Item B. The SOW calls out for the contractor to provide calculations/data on the existing chiller and chilled water system to ensure there is enough water flow to support the additional load on the system. Is the Government going to be able to provide the size of every unit connected to the existing chiller, flow rates for every coil, and pipe sizes of the supply and return piping so the contractor can provide calculations/water flow? | This will not need to be accomplished. Only one chiller needs to operate at this time. If one chiller cannot handle the additional load, the second chiller can be started. PMB | Delete statements 3.5-B,C and 5.6-B,C from SOW. This does not need to be accomplished. PMB | |
| Are there any drawings, redlines or as built drawings of the existing construction area the Government can provide? | Yes PMB | ||
| Are any of the new construction areas going to require the contractor to install vindicator card access on the new entry doors? | No PMB | ||
| A full design on the mechanical – 100% design on just this project or throughout the SABER project? | We do 35% of the design. We come up with what we’re looking for, but we’re not in a position to come up with the calculations. We’re relying on the contractors for their expertise. | ||
| They want to maintain architectural appearance on north wall including glass. The glass blocks need to be reused. | General statement made during the site visit, no particular question asked. PMB | ||
| VCT, vinyl, duct work, TSI in the attic need to be regulated on-site at all times. | |||
| Are we going to be doing line items on our proposal? | There is a TEP worksheet included that is to be filled out. The TEP consists of a list of divisions. Section L explains what needs to be submitted. | ||
| Is this how the task orders will be bid? | Ordering procedures will be addressed at the post award conference. | ||
| The fire Alarm requires a NICET level 3 is that still required? | Yes, still required. | Per UFC 3-600-01 and NFPA 72, all work involving fire alarms requires design. All fire alarm work must be designed by a qualified NICET III/IV/FPE designer. PMB | |
| Name of factory certified local company for fire alarm system? | It is a Nelson Fire Alarm FCI system. Nelson is the local representative that can work on it. Other manufacturers from out of state may be brought in. | Yes, the existing system is an Fire Control Instrument (FCI) system and work can only be perform by factory certified personnel. The only local company that has factory certified personnel is Nelson Fire. PMB | |
| Does the existing fire alarm system stay up until the new one is ready. Can we take the old system down? | You can disable the old ones. The ceiling mount AV (fire) outside of the area of construction need to remain active at all times. | You can disable the old horn/strobe alarms (also known as A/V alarms) in the area of construction. These will be changed to new ceiling mount horn/strobe alarms. The horn/strobe alarms outside of the area of construction need to remain active at all times. PMB | |
| Are there sprinkler heads above the ceiling? | Yes, there are some up there and they need to be changed. All the heads in the construction area need to be changed. | Yes, there are some up there and they need to be changed. All the heads in the construction area need to be changed and/or relocated with updated heads and to provide proper coverage based on the new floor plan. PMB | |
| How do we get internal loads or equipment loads, do we know if it has the capacity? | We’ll have to get back to you. | The number of people, computers and copy/fax machines have been identified on drawing "Bldg 214 New Layout - People". Add an addition 20% of cooling capacity for future equipment heat gain. PMB | |
| Will third party certification be required? | Test and air balance on HVAC need certified test balancers. For abatement, if you’re going to bring in another contractor we need certificates so we know who we’re dealing with. Data, Comm. and Plumbing will also require third party certification. | Yes, test and air balance on HVAC systems (air and water) will be done by NEBB (National Environment Balancing Bureau) certified balancers. Balancing will be done on all air and water circuits within the area of construction. For abatement, if you’re going to bring in another contractor we need certificates so we know who we’re dealing with. Data, Comm. shall follow certification requirements as outlined in the 75th ABW/SCXPP, TAB K dated 1 April 2010. PMB | |
| How long will the RFP be out? | 30 days | ||
| When do you anticipate RFP release? | End of April, or the first part of May | ||
| How much design do you anticipate overall for the life of the contract? | Approximately 5% depending on how the work is trending. | Approximately 5% depending on how the work is trending. Nearly all projects require some amount of design, but occasionally we need a full design for Mechanical/Electrical. Per UFC 3-600-01 and NFPA 72, all work involving fire alarms requires design. All fire alarm work must be designed by a qualified NICET III/IV/FPE designer. PMB | |
| Will plumbing require a 3rd party certification? | Yes. | Yes, a NEBB (National Environment Balancing Bureau) certified balancers will balance the HVAC water circuits. PMB | |
| Will backflow be required for HVAC as stated in 5.5 of the SOW, or is that a type-o? | Yes, backflow will be required for HVAC | Yes, a backflow device will need to be added to the HVAC system as stated in the SOW 5.5-D along with certified test documents PMB | |
| Will construction drawings be required? | Yes, but we should only need them for electrical and HVAC, and they only need to be single line drawings. | Yes, we will need drawings of the floor plan, ceiling grid and lighting. We will also need plumbing, electrical and HVAC but these will only need to be single line drawings. PMB | |
| Will Tab K be posted on FedBizOpps? | yes | ||
| Do we need to qualify our bids as to whether windows will be replaced or reused? | Yes, however we would like to reuse everything we can. | Yes, however we would like to reuse everything we can. We want to maintain architectural appearance on north wall including glass. The glass blocks need to be reused if at all possible. PMB | |
| Will all of these Q&A's be posted? | Yes | ||
| Maximum resistance required for the anti-static flooring? | AFMAN 32-1094 says to use sheet goods. | AFMAN 32-1094, section 26 states that the grounding system must have a resistance of less than 10 ohms. Flooring is part of the total grounding system. PMB | |
| MECHNICAL ENTRY ROOM: Marty said something about the heating in the ceilings and throughout the project area. | General statement made during the site visit, no particular question asked. Delete if you would like. PMB | ||
| MECHNICAL ENTRY ROOM: Anchor the ceiling tiles in the Mechanical Room Entry to the ducting ribs rather than drilling into the ducting. | I was addressing the fact that the HVAC duct overhead has asbestos on it, that is not being removed. Care should be taken not to disturb this and all anchoring of ceiling grid should be done on the metal duct ribs. PMB | Added to SOW in sections: Asbestos All Areas - Item I, 4.3-A and 4.5-A. PMB | |
| HVAC DDC CONTROL: Two types of DDC controls allowed on base (Dorsett Tech and Alerton). Get with them for your bids. | This statement was made by Dan Hill of Dorsett Inc. They are one of the HVAC DDC contractors. PMB | ||
| CHILLER ROOM: No part of the room will be demo'd. | No part of the room will be demo'd. PMB | ||
| Is this all Dorsett controls? | CHILLER ROOM: No, they're Alerton | No, they're Alerton. PMB | |
| Does water heater serve the existing bathrooms ? | CHILLER ROOM: Not sure. | Not sure, revised SOW will indicate installing a new 10 gallon electric water heater in the center mechanical room for the "coffee bar". PMB | Added to SOW Sections 3.6-E and 5.5-A. PMB |
| Do chillers, both run to serve the same areas? | CHILLER ROOM: Yes, but not at the same time, lead/lag set up. | NO, one chiller is capable of handling the load of the system. Second chiller is for back-up. Chillers are cycled to balance operating times. PMB | |
| What is the glycol mixture in the chillers? | CHILLER ROOM: Unknown, but we’ll match what’s in it (will take samples and let us know what the concentration is) | There is currently no glycol in the chilled water system. PMB | |
| Is the existing steam humidifier use replaceable canisters? | CHILLER ROOM: For future humidifiers it will be the Armstrong (will get particulars on it) | This question really doesn't pertain to the project since there are no humidifiers being installed. Future humidifiers will be "Armstrong Humidiclean HC6100/6300 Series' humidifiers. PMB | |
| Canisters? | CHILLER ROOM: I don’t think the Armstrong’s have casters. | Not a relevant question, kind of a side statement of question #51. PMB | |
| Does the chiller serve more than this area? | Yes, it does. From everything we know about the chiller, the chiller is large enough to handle the capacity for the entire construction area. | Yes, the chiller supplies a large area of the facility. As far as we know the chiller is large enough to handle the added capacity for the entire construction area. PMB | |
| Chiller on right side is the primary chiller ? | CHILLER ROOM: Never had to run both chillers. | General statement made during the site visit, no particular question asked. PMB | |
| OUTSIDE MECHANICAL ROOM: Everything will be demo'd, except for the electrical main and the steam condensate mains. | Everything will be demo'd, except for the electrical, steam, condensate and chilled water supply and return main piping. PMB | ||
| OUTSIDE MECHANICAL ROOM: Up above it is mostly duct work. | General statement made during the site visit, no particular question asked. PMB | ||
| OUTSIDE MECHANICAL ROOM: Don't need a clean room. | General statement made during the site visit, no particular question asked. PMB | ||
| Does outside air need to be pre-conditioned? | OUTSIDE MECHANICAL ROOM: Not getting that far on this project; that will be when it converts to a lab. | No, the design of the HVAC system will not need to incorporate this feature. PMB | |
| Will you reuse louvers? | OUTSIDE MECHANICAL ROOM: Everything will be new except electrical main. | No, everything will be new except for the electrical, steam, condensate and chilled water supply and return main piping. PMB | |
| Still need to meet Terrorist threat guidelines (intake air, etc.)? | OUTSIDE MECHANICAL ROOM: Will reference guide. | Yes, reference UFC 4-010-01, DoD Minimum Antiterrorism Standards for Building, 8 October 2003 including change 1, 19 January 2007, page B-19, para. B-4.3, Standard 18-Emergency Air Distribution Shutoff. PMB | |
| Do HVAC ducts have asbestos on the inside? | OUTSIDE MECHANICAL ROOM: There is no insulation on the inside; asbestos on outside. | There is no insulation on the inside; asbestos insulation is only on the outside. PMB | |
| Only one air handler above ceiling? | OUTSIDE MECHANICAL ROOM: There could be more when you get up there; everything above ceiling feeds area of construction. | No, there are exhaust fans, air handling units, blower assemblies, vacuum lines from industrial multi-stage vacuum pump and possibly more. I will provide drawings that show the majority of this equipment. There may be some items that were installed after construction that are not on the drawings. PMB | |
| Lektriever heat/load standpoint? | OUTSIDE MECHANICAL ROOM: Will get info. | The heat gain from the Lektriever is minimal and should not play a large factor in the HVAC calculations. PMB | |
| Placement of heat exchanger? | OUTSIDE MECHANICAL ROOM: Center of center mechanical room. | The heat exchanger shall be installed in the center mechanical room. Placement will depend on the placement of all other items being installed. PMB | |
| Plan on installing a new water heater out in the outside Mechanical Room. | Revised SOW will indicate installing a new 10 gallon electric water heater in the center mechanical room for the "coffee bar". PMB | Added to SOW Sections 3.6-E and 5.5-A. PMB | |
| On HVAC minus humidity. | OUTSIDE MECHANICAL ROOM: Needs to be capable of handling the future lab. The humidity requirement does not have to be proposed at this time. The system just needs the ability to add humidity in the future. | The HVAC system needs to be capable of handling the addition of a humidifier in the future. The humidity requirement does not have to be proposed at this time. PMB | |
| Hallway: The plans we were able to find for this building are from the 40's. | General statement made during the site visit, no particular question asked. PMB | ||
| Hallway: Hot water coils are for reheat; no steam throughout the rest of the area. | General statement made during the site visit, no particular question asked. There are no water coils being installed. PMB | ||
| Hallway: “Hard lid” ceiling up to the training sign. | Hard lid ceiling will be identified on a drawing. PMB | Location identified on drawing "Bldg 214-New Layout" and stated in section 3.2-F of the SOW. PMB | |
| Hallway: Size of water line needs to be a size to handle the offices/rooms. | General statement made during the site visit, no particular question asked. PMB | ||
| The water line that is going to serve this area should be stubbed to the suspended ceiling across the hall to the finished offices for reheat only; replace electric reheat with hot water reheat. | The water line for the reheat coils should be stubbed to the south side of the hallway above the finished offices. No reheat coils will be installed. PMB | Location identified on drawing "Bldg 214-New Layout" PMB | |
| Electric strip in the duct work? | Hallway: Yes. | Yes, but it is not being replaced. PMB | |
| What capacity the coils are running at on maximum capacity? | Hallway: No. I can try to get that information to you. | This information is on the additional prints provided. PMB | Information identified in "Existing Offices-South Hall" drawings. PMB |
| The chiller is the same chiller line that is feeding the middle mechanical? | Hallway: Yes. | Yes. PMB | |
| Where is hot water from? | Hallway: Steam in the original mechanical room. No hot water in this area. The 4 VAVs in there are electric; just stubbing hot water on that wall. | The hot water for the future reheat coils will be provide by the heat exchanger the contractors will install in the center mechanical room. PMB | |
| Where does the duct work from the hallway originate? | Hallway: Most likely branches off of the main that runs through the Mechanical Room Entry. | This information is on the additional prints provided. PMB | Information identified in "Existing Offices-South Hall" drawings. PMB |
| What type of air handler will be installed in the center mechanical room? | Hallway: Just standard, not clean room standards, no HEPA filters, IAW AFMAN 32-1094. | Standard air handler unit capable of meeting .05" W.C. when area is sealed to meet AFMAN 32-1094. Area is not considered a clean room so additional equipment will not be needed. PMB | |
| Is everything out here(Rooms 009A,B,C) a plenum return? | Yes | This area is a plenum return to the large AHU in the west mechanical room. PMB | Information identified in "Existing Offices-South Hall" drawings. PMB |
| Plenum vs. non-plenum materials in the hall (are these air returns or plenums)? | Comm. will have to be rated to go to plenums. They are air returns. | All cabling shall be plenum rated. PMB | |
| Are the reheats functioning right now? | Hallway: No. Just the multizone handler (9 zones). | No. Just the multizone handler (9 zones). PMB | |
| COMM ROOM: All Comm. boxes are labeled Room 019, but they are mislabeled – the Comm. Room is Room 005. | Comm. Rm. is mislabeled as 005. The actual room number should be 019 and all jacks should be labeled this way. GG/RR | ||
| COMM ROOM: Service elevator is located just outside the MIC. | General statement made during the site visit, no particular question asked. PMB | ||
| Heat load in the Comm. Room? | COMM ROOM: | Most Comm. rooms have a 3-ton duct-less split system with a ceiling mount cassette in them. Mitsubishi is the common brand since it has a variable speed compressor and can adjust to load demands. PMB | Updated SOW section 7.1-A to include this information. PMB |
| Will new patch panels be needed in the Comm. Room? | COMM ROOM: Yes, up to the specs in Tab K. | Yes, refer to specs. In TAB K. GG/RR | |
| Does the power transformer stay in the Comm. Room? | COMM ROOM: Yes. | Yes. GG | |
| ELECTRICAL/COMM | |||
| Base standard 6 ft from a corner, 12 ft without a break for outlets/comm. | Base standard is 6 ft from any edge and 12 ft between for outlets/comm. With obvious exceptions such as halls, bathrooms. Follow the "Comm. layout" drawing for "Missile" room. GB | ||
| Suit-up before opening up anything | General statement made during the site visit, no particular question asked. GB | ||
| Jack, wire, complete system to be provided by the KTR, see on note (2) sect. for elec. Layout | Correction made on "Typical Power Station - Correction" drawing. Will forward with other drawings. PMB | ||
| All plenum rated wire for Comm. Due to chase going out into the hallway. All Cat. 5 plenum rated | All plenum rated wire for Comm. due to chase going out into the hallway. All Cat. 5e plenum rated. GG/RR | ||
| ELECTRICAL: Breaker off for compressor, why? Enough Space? | Electrical load going down - reconfigured, we'll get shops to open it up and see if there's room. You may be able to set another transformer or feed off the other 120/208 panels. | There is space available in 480V. and 208V. Panels. GB | |
| Do you want non-ferrous conduit to feed panels, aluminum 400 cycle? | We'll consult upstairs engineering | Yes, if contractor uses PVC it shall be schedule 80. This will apply to all 400Hz wiring. Contractor will only install rated parts for 400Hz systems. GB | |
| Will a GPS system for the test best bench be required? | Yes, a stand-alone w/ an antenna on roof | Yes, the contractor shall install all necessary wire/cable, connections, wall jacks with plates is shown on the "typical Power Station - Correction" drawing from the 6 locations on the north wall to the north wall of the "storage room" in the mechanical entryway. Location will be identified on attached drawings. Will include this information in the revised SOW. PMB | |
| Will the DC be stand-alone or tie-in to the existing DC system? | It will be stand-alone | It will be stand alone. Locate in electrical room. GB | |
| How far around the room will the bus bar go in missile room? | See AFMAN for resistance requirement | The ground bar will run the length of the north wall in the "Missile" room (approx. 40'). If there is not an existing ground system, with sufficient abilities, one will need to be install to meet all AFMAN 32-1094 requirements. PMB | |
| How many foot candles for lights? | See spec, BFDS? | See spec, BFDS? | |
| What can the panel in the Center Mech. Rm. feed within the room? | Run 480 from other mech. room if needed | If the existing panel is sufficient for the HVAC/ lighting/outlet loads it can be used with new feeder's installed. GB | |
| MCC buckets or fuse panel for Center Mech. Rm.? | No need for MCC panel | No need for MCC panel | |
| ABATEMENT | |||
| Is there vermiculite in the CMU walls and is the black wall mastic above the suspended/hard ceiling an asbestos containing material? | Vermiculite sample from cinder block and black adhesive results to be posted. | Mr. Troye Davis of the CE asbestos shop was notified on 7 April and will provide the updated asbestos survey as needed. Should have the results by 22 April 2011. RBS | |
| Will the abatement Contractor hire a 3rd party consultant? | Yes, the contractor will hire a third party environmental consultant. | Yes, the contractor will be required to hire an independent third party environmental consultant. RBS | |
| LAB: Need to add grounding bar, nitrogen and air stubbing. The lab is an open plenum. | This information will be added to the SOW. PMB | Grounding added to section 3.4-I. Compressed air and Nitrogen added to 3.6-G,H in the SOW. PMB | |
| LAB: We think there are 4 feet above that can accommodate upward movement of the ceiling. | General statement made during the site visit, no particular question asked. PMB | ||
| MISSILE ROOM: Should be constructed to lab standards. There is one duct in the Missile Room that will stay in place on the north wall--it is the return duct from upstairs. | General statement made during the site visit, no particular question asked. PMB | ||
| MECHANICAL | |||
| Do we have any PMEL requirements per the AFMAN 32-1094? | Not sure of the direction of this question. As far as mechanical design goes, Yes. The mechanical design must incorporate design practices as described in AFM 32-1094. HVAC system should be capable of maintaining the desired conditions related to a “Calibration/Repair Area” as described in AFM 32-1094. When this area (room designated as the Missile Area) does become a lab space in the future there should be very little/no modifications to the HVAC system for it to maintain required conditions. PMB | ||
| The design requirements differ from the SOW to the AFMAN 32-1094. Do we stay with the SOW? | Yes, the Missile Area is only being prepped to later become a lab space and needs to be constructed following AFMAN 32-1094. All other areas can be constructed using general practices. As far as mechanical items, the main air handler unit will still need to be sized and system designed to maintain temperatures and humidity (to be added later) in the Missile Area. Other rooms will not need tight temperature/humidity ability. PMB | ||
| Is an "Air Lock" required? One is not shown on the new plans, and is mentioned in the AFMAN 32-1094. | No, at this time an air lock is not needed since this room will not be used or identified as a “Calibration/Repair Area”. PMB | ||
| Do we have any "Clean room" requirements? | No, but the Missile Area will need to follow Clean Construction Protocol as stated on page 8, AFMAN 32-1094, Section D, Item 9 as well as other areas throughout section 8, Materials and Methods of Construction. PMB | ||
| Do we comply with AFMAN 32-1094 for positive air pressure to prevent dust contamination? | Yes, in a sense. The HVAC system should be sized accordingly to be capable of maintaining this requirement once this area is remodeled into a calibration area. Since this area is not being fully and completely constructed to be a Calibration/Repair Area, maintaining a positive pressure would be difficult. PMB | ||
| AFMAN 32-1094 (page 10) 19.2 states "the using agency will provide the internal heat gain for the space." Is this available at this time? | The number of people, computers and copy/fax machines have been identified on drawing "Bldg 214 New Layout - People". Add an addition 20% of cooling capacity for future equipment heat gain. PMB | ||
| Is the chiller system glycol and if not do we need to provide some freeze and drain protection. | There is currently no glycol in the system and does not need freeze or drain protection. PMB | ||
| What is the gpm on existing chiller lines. | The main chilled water pumps are rated at 460 gpm with 60' head. Additional pump information is: Bell & Gossett Pumps, Size 1510 BF 8.375, Serial #CO87092-02E90, 15 hp, 1800 rpm, max psi 175#. PMB | ||
| Steam pressure on supply line and is the return line also pressurized? | The main steam pressure entering the center mechanical room is 125#. PMB |
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File details come from the government source that posted it. Updated .