FA5205-15-R-0008-0003_Atch._7_Consolidated_List_of_the_Gov't_Response.pdf

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification 1 Drawing Ph‐1A, A‐601 There are "D‐SASH" for GLAZING on the lists. Does "D‐SASH" mean "Double

Sash"?

Yes The abbreviations are added in A‐601 by Addendum #1.

2 Drawing Ph‐1A, A‐503 According to the drawing, plastic frame window to be installed would be protruding from the wall. Is it necessary to provide "Furred out wall" for the frame?

CE has checked no plastic extention attachment is no longer using because their wood trim is larger than 70mm for plastic IGU, and Aluminum window trim is small so that the detail is revised to add new 70x30mm (40x30mm for 1B Type 2) wood trim with wood support to sill to nail to wall furring.

A‐503 sectional and plan details for the window trim are revised to 2 types of conditions, however, the bidders shall estimate all windows are small Aluminum trim to add the wood trim intallation.

3 Drawing Ph‐1A & B A‐601

"OPENING TYPE" is categorized "1, A, B, C,…" on the list. Would you provide details of those categories?

"1, A, B…." are shown on each drawings, and A601/602 show the requirement to do.

4 Drawing Ph‐1B A‐601

GENERAL NOTES 1. says "DEMOLISH EXISTING WINDOW AND…". Does it mean demolish/remove before new installation for all cases without any exceptions?

GENERAL NOTES are deleted in Addenudm #1.

5 Drawing Ph‐1A 6‐AD101 & Exhibit A

Bldg. 198 is described as BLDG TYPE 6R in Dwg. 6‐AD101 and described as TYPE6 in ExhibitA A001AP. Which is right?

B198 is categolized "6".

Drawing is revised in Addendum #1.

6 General We suppose all buildings and rooms for this project might be occupied. If so, all construction work required to perform under the occupied condition.

Is this right understanding?

Yes.

7 General Does the Government coordinate with residents about the construction period in accordance with construction schedule the contractor made?

No.

The schdule shall be submitted and official letter signed by Housing Office shall be delivered to the residential prior to the construction by the contractor. Need coordination with Title II inspector.

RFP No. FA5205‐15‐R‐0008 IMFH Weatherization Phase I, Misawa AB, Japan

Consolidated List of Prospective Offerors' Submitted Questionnaire and U.S. Government Response / Clarification

Atch. 7 to FA5205-15-R-0008-0003 Dated 17 Jun 15

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

RFP No. FA5205‐15‐R‐0008 IMFH Weatherization Phase I, Misawa AB, Japan

Consolidated List of Prospective Offerors' Submitted Questionnaire and U.S. Government Response / Clarification

8 General How should we estimate the quantities of asbestos abatement? The information of ACM is stated in the specification sections (i.e., 011100, para 1.1.2), and the bidders shall coordinate with their hiring accredited ACM consultant9S).

The professional(s) shall advice how and how much work should be involoed in ACM abatement, then it is to bid form.

Affected works are that boring exterior concrete wall (skim cement is ACM of 0.15%), and interior gypboard joint patty may be ACM.

Spec section paragraphs requires ACM samplings to clarify whether ACM exists or not.

9 Drawing Ph‐1A A‐503,601 & Ph‐1B A‐601

Please provide information about combinations of double grazing (types of grass to be used for).

Since not only manufacturer is used for, the requirement for IGU is specified in Note 1 on A503.

10 Drawing Ph‐1A A‐503

No installation of A/C is mentioned for Phase 1A. However it is, the drawing shows the detail of A/C Canopy. If A/C canopy is required to install without A/C installation, please provide information about Housing No. and the quantity of canopy to be required to install.

A/C canopy details are deleted in Addendum #1.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

Consolidated List of Prospective Offerors' Submitted Questionnaire and U.S. Government Response / Clarification

11 Drawing Ph‐1B

5A‐AE101

There is a description of "OPTION" at "the section of "BUILDING LEGEND".

How should we propose/mention the price amount for the OPTION?

Building Legend is Revised to delete OPTIONS in Addendum #1.

12 Drawing Ph‐1B

5A‐AE102

There are defferent descriptions of new HP outdoor equipment between drawings of Mech and Elec. Mech. Drawings show all HPs are HP‐2 and Elec.

Drawings show both HP‐1 and 2. Please advise.

Arch drawing states "see Mechanical", therefore Mech drawings governs.

Mech and Elec drawings are clarified.

13 General R‐Value is not listed in the specification of Japanese domestic insulation.

Thermal resistance value (Netsu‐Teikouchi) and thickness which are commonly used for determining insulation in Japan can be informed.

"R‐20" is repeatedly informedn in the drawings, and no equivalent technical substitution between U.S and local product.

See Catalog Cut for an information.

14 Exhibit A and B Drawings

Spec. 01 11 10 01 11 20

1A‐A002 to A‐005, 1B‐A‐002 Page 1 to 7 Page 1 to 4

The discrepancies for the type of units and related scope of works have been found between Exhibit A and B, drawings and specification as listed below. Please advise which one is correct.

Bldg. No. Exhibit Drawings Specs.

1809 3R 3 3R 1810 5R 3 5R

1811 5AR 5 5AR

1812 5R 5 5R 1813 3R 3 3R 1814 4R 4 4R 1815 5R 5 5R 1830 4R 4 4R 1831 5R 5 5R 1832 5R 5 5R 1833 4R 4 4R 1834 4R 4 4R 1835 4R 4 4R 1836 3R 3 3R 1837 5R 5 5R 1838 4R 4 4R 1939 4R 4 4R 1840 5R 5 5R 1841 4R 4 4R 1842 5R 5 5R 215 5N 15N 5N 217 5N 15N 5N

241 12JF 12J 12JF

243 12JF 12J 12JF

245 12JF 12J 12JF

247 12JF 12J 12JF

249 12JF 12J 12JF

400 7 7R 7 403 7 7R 7

1A‐A002 and 003 are revised.

15N to 5N for B215‐217 12J to 12JF for B241‐249 7 to 7R on Exhibit and Specs

1B‐A002 is revised for building types to comply with Exhibit and specs

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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15 Exhibit A and B Drawing

Spec. 01 11 10 01 11 20

1A‐A002 to A‐005 1B‐A‐002 Page 1 to 7 Page 1 to 4

Please clarify whether the buildings listed below are included in the scope of the work or not.

Bldg. No. Exhibit Drawings Specs.

246 excluded included excluded 374 included excluded included

Note : Building type for #374 is “14N”.

"246" in A003 is deleted.

"374" is added in A003.

16 Exhibit A and B Drawing

Spec. 01 11 10 01 11 20

1A‐A002 to A‐005, 1B‐A‐002 Page 1 to 7 Page 1 to 4

IAW our as‐built record for PAIP Phase 2 and 3, Building 1823 and 1828 is NOT Adaptable type (ADA). Please confirm that Building 1823 and 1828 is

NOT ADA.

B1823 and 1828 are NOT ADA, so the drawings and Spec and Exhibit are revised.

17 Specs. 01 11 10 page ‐ 2 There is a description that “1. 80 UNITS IN 20 – 4 PLEX BLDG CONSISTING OF 2 STORY, 3 BR – FGO (3BR)”. We assume that this should be read “1. 76

UNITS IN 19 – 4 PLEX BLDG CONSISTING OF 2 STORY, 3 BR – FGO (3BR)”.

Please confirm.

Page 2 subpara #1 is revised accordingly.

"76 units in 19 " is correct.

18 Specs. 01 11 00 page 4 There is no specific time/period restriction for the works which will be executed in winter period. Please confirm.

Ref: paragraph 2.1.1 The intention of work in Winter is to restrict the work involved in the temperature not to control, i.e., paint, concrete, roof work, etc.

Therefore if contractor will do such work(s) in Winter, he shall provide the adequate preparation with no cost escalation to the Government.

19 Specs. 01 35 29 page 4 There are three (3) numbers of requirements for SSHO in para. 1.5.1.1. Is it acceptable as SSHO that proposed SSHO shall meet one of three requirements? Also Is it acceptable that all duties stipulated under Certified Safety Professional (CSP) will be performed by SSHO?

Spec para 1.5.1.1 requires "The SSHO shall meet the following requirements"

20 Specs. 01 45 04 page 4 and

IAW para. 3.4.2 CQC System Manager, no specific certificate as CQC manager is required other than minimum 12 years working experience in construction works. Please confirm.

CQC manager qualification is provided in Section 011100, para 1.3.B.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

Consolidated List of Prospective Offerors' Submitted Questionnaire and U.S. Government Response / Clarification

21 Specs. 01 11 00 para. 1.1.1 We understand that all the required work should be executed under occupied units. We assume that the following problems will be encountered during progress of the work. Please clarify who will be responsible/liable to these problems:‐

a) Any property damage to the personal belongings of the residents such as TV, audio sets, clock, furniture, painting, picture, photos antiques and etc.

b) Any injuries to our worker/staff caused by residents or pet.

c) Any injuries to the residents or pet caused by contractor.

d) Any subsequent loss/damage caused by the work.

e) Temporary shifting of furniture, TV, pictures for securing the working space and shifting back these after finish the work.

f) Protection to the personal belongings of the resident during the work.

g) Co‐ordination for time schedule, shifting of personal belongings and other briefing prior to the commencement of the work.

h) Daily co‐ordination with the residents

i) Any delay caused by the residents such as TDY or resident’s personal reason, such as sudden cancellation of scheduled work by the resident.

j) Any daily cleaning work and removal of tools, equipment and protection at resident units

k) Any daily cleaning work for corridor and other public space at Towers.

l) Any damage during window replacement work due to sudden strong wind, rain or snow.

The schdule shall be submitted and official letter signed by Housing Office shall be delivered to the residential prior to the construction. Need coordination with Title II inspector.

a) Housing Office's letter will request the residential to move/protect them.

b) Ditto to control pets.

c) Ditto

d) Ktr shall anticipate the relative subsequent loss/damage, and avoid.

e) See a)

f) See a)

g) Title II will do.

h) Ktr's interpriter/field manager shall do.

i) Title II will coordinate with Ktr.

j) Ktr's responsibility as far as Ktr may make such condition.

k) Ditto

l) Damages by the nature is not Ktr's responsibility.

22 Specs. 01 11 00 para.1.1.1 Is it necessary to allocate the interpreter at ALL working sites by full time on‐ site basis?

Yes.

Therefore, the schedule is very important to assign the hours to visit.

23 Drawing 1B‐AE102 (Sheet page 015)

According to Sheet Notes No.1, installation of new attic access panel is required for 3BR SOQ units. However, no access panel is indicated on any other drawings for other types of units. We assume that new attic access panel is necessary for wiring work for wall mounted Wired Thermostat in all types of units. Can we assume that 2 (two) numbers of new attic access panels are required per every 1 (one) number of indoor unit for the installation of wall mounted wired thermostat other than 3BR SOQ?

Ceiling access (access panel) is re‐plotted

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24 Drawing 1B‐2‐MH101 (Sheet page 063)

According to the drawing, installation of new “C‐1” is required at Living Room. However, there is no door between Living Room and Hallway and these rooms are continuous one space. Considering this condition, we assume that the capacity of C‐1 may not be sufficient to cover this floor area. Please advise whether new C‐1 should be used or select bigger capacity indoor unit.

Not concur. HVAC load calculation call 1.204kw for heatring & 0.954kw for cooling in Living/Dining & 0.812kw for heating & 1.500kw for cooling in family room, hall, laundry. Selected indoor unit have an enough capability for environmental contorl for subject room.

25 Drawing 1B‐4‐MH101 (Sheet page 065)

The sheet title of drawing No. 1B‐4‐MH101 is “JNCO 4BEDROOM 4 PLEX”.

However, drawings shown on this sheet are 3BR type. We assume that the sheet title should be “JNCO 3BEDROOM 4 PLEX”. Please confirm the sheet title.

Concur. Revised sheet title to "JNCO 3BEDROOM 4‐PLEX".

26 Drawing 4A‐MH101 (Sheet page 066)

The sheet title for drawing No. 1B‐4A‐MH101 is “JNCO 4BEDROOM ADA 4 PLEX”. However, drawings shown on this sheet are 3BR ADA type. We assume that the sheet title should be “JNCO 3BEDROOM ADAPTABLE 4PLEX”. Please confirm the sheet title.

Concur. Revised sheet title to "JNCO 3BEDROOM 4‐PLEX".

27 Drawing 1B‐4A‐MH101 (Sheet page 066)

According to the drawing No. 1B‐4A‐MH101, 2 (two) Thermostats (letter “T” in circle) are required to be installed in Living/Dining 202. However, there is only 1 (one) indoor unit in this room. We assume that 1 (one) thermostat is enough for this room. Please clarify only one number of thermostats is acceptable or not. In case acceptable, please advise which location is correct for thermostat at Living/Dining 202.

Remove one thermostat from Living Dining/202. Add one themostat for Living Dining Room/102.

28 Drawing

Solicitation Document

5‐MH101

(Sheet page 067)

Exhibit B

The sheet title of drawing No. 1B‐5‐MH101 is “JNCO 3 BEDROOM 4 PLEX”.

However, drawings shown on this sheet are 2BR type. We assume that the sheet title should be “JNCO 2BEDROOM 4 PLEX”. Please confirm the sheet title.

Also IAW Building Legend of this drawing, BLDG. #1852 is indicated as applicable building to this sheet. However, we assume that this sheet is for Normal type 2BR and #1852 is ADAPTABLE type unit. (Bldg. #1852 is indicated as ADA type unit in B001 AH in Exhibit B of Solicitation document.) Please clarify that Bldg. 1852 is 2BR ADA type or not.

Revised title "JNCO 2BEDROOM 4PREX.

B1852 Unit A & B (1st floor) are Wheel chair adaptable unit and Unit D & E (2nd floor) are normal 2 BED ROOM. Add housing unit "C & D" for B1852.

29 Drawing 1B‐4‐AE201, 5‐

AE201,

5A‐AE201

(Sheet page 35, 43 and 46)

Size of exterior refrigerant plastic pipe cover is not indicated in any drawings. We assume that the size of existing exterior plastic refrigerant pipe cover on site will be approx. 140mm height x 80mm depth. Please confirm.

Mech equipment and pipes are reference only. They are Mech works and Arch drawing will show the final view of the construction typically.

See Mech drawings for size cover, etc are up to the selected manfacturer. You can assume what you selected maker's size.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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30 Drawing 1B‐M‐601 (Sheet page 074)

According to the HEAT PUMP SCHEDULE, specification for new heat pump unit is NOT cold latitudes type. Can we assume that all Heat Pump Units required under this project are Standard type, NOT for Cold Latitudes?

The heat pump is not required cold latitudes type. Actural Heating design demand is around 40% of selected equipment catalog performance. We can expect performance down of selected equipment at extream weather condition @ ‐15°C, it will be 35% of catalog performance . However it is greater number of design deamand.

31 Drawing

Pre‐Bid/ Pre‐ Proposal Conference

1B‐3‐MH101

(Sheet page 064) 1B‐M‐501 (Sheet page 071)

Site Visit

According to Site Visit of Multiplex buildings, the steel panel cover was installed on both 1st floor and 2nd floor. However, the detail information such as size, required location of the steel panel cover is not indicated on the drawings and Specification.

Please clarify that the following assumptions for the steel panel cover is correct or not.

1) Material, Fabrication and Installation Factory fabricated/baked enamel finish coat to steel plate cover with steel angle sub‐frame.

On site work is just fixing sub‐frame and steel panel cover only by screwing.

No welding and cutting on site is required. Each panel will be fixed by screw and panel joint should be sealed up by sealant. Also panel cover should be removable for future maintenance. Prior survey to each unit is required to determine the actual size of the steel panel cover for fabrication in factory.

2) Required location to be installed Basically beside all indoor units 1/F : Cover all refrigerant, CD pipes and electrical cables/wires from ceiling to indoor unit.

2/F : From floor to ceiling, approx. 2400mm height.

All pipes, cables and wires between steel panel cover and indoor unit should be covered by plastic refrigerant pipe cover and properly sealed up all the gaps by sealant.

3) Others All penetration holes from exterior wall or slab must be properly sealed up.

Concur. Add typical detail for steel cover for refrigerantion pipe of Air conditioning system and vertical steel cover is located two srory building @ room corner nearby exterior wall.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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32 Specs.

Drawing No. M‐601 (Sheet page 074)

Pre‐Bid/ Pre‐ Proposal Conference

23 09 03 para.2.1.2.1

1B‐M‐601 (Sheet page 074

Site Visit

According to the Specification Section 23 09 03 para 2.1.2.1, installation of wired wall mounted wired thermostat is required for this project.

In case, we assume that the following works will be required to perform:‐

1) Gypsum wall board at the location of wired thermostat should be cut/removed for the installation of conduit from ceiling to specified height and this must be restored by gypsum wall board again and properly sealed and painted.

2) Also for the cabling of the control wires, ceiling access panel (hatch) above the wall mounted wired thermostat should be provided.

3) In addition to this, one more ceiling access panel may be required for the complete wiring of the wired thermostat.

4) For estimate purpose, we assume 2 (two) number of ceiling access panel will be required against every one number of wall mounted wired thermostat.

Please confirm that our assumption is acceptable or not.

This is acceptable.

33 Specs.

Drawing

Solicitation

Pre‐Bid/ Pre‐ Proposal Conference

23 05 15 para. 2.1.3 1B‐M‐501

Acceptable Japanese Product Substitutes

For condensate drain pipe, Specification specified “Galvanized Steel Pipe/ Sch.40” and the drawing 1B‐M‐501, specified “20mm Sch.80 PVC”. Also, “Black Steel Pipe” is specified as JIS substitute in Acceptable Japanese Product Substitutes. During Site Visit, we found that PVC Pipe (AC Drain by SEKISUI) was installed as CD piping. Can we use PVC pipe as condensate drain pipe which has already been used for existing HVAC system?

PVC drain pipe is acceptable. Add appricability of PVC pipe for Air condtioning drain system into Specification Section 23 05 15 part 1, para 1.1, page 4, page7 & page12.

34 Specs.

Pre‐Bid/ Pre‐ Proposal Conference

23 09 23

Site Visit

Specification Section 23 09 23 seems to be prepared for the installation of EMCS System and associated accessories. However, according to the explanation by USG during Site Visit, EMCS system will be created and established in “future project” by the other contractor.

Please clarify whether Section 23 09 23 is applicable to this project or not.

The following work need to be included on the project. 2.1 DDC SYSTEM except 2.1.1.13 BACnet Gateways. 2.2 SENSORS AND

INPUT HARDWARE. 2.3 ELECTRICAL POWER AND DISTRIBUTION.

All of PART 3 EXECUTION.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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35 Drawing

Specification 26 20 00

Pre‐Bid/ Pre‐ Proposal Conference

1B‐E‐001 (Sheet page 075 1B‐E‐601 (Sheet page 097)

26 20 00 para. 2.9

Site Visit

There is no indication of GFCI receptacle in EMCS enclosure on the drawing 1B‐E‐601. According to the Project Notes No.19 on drawing 1B‐E‐001 and Specification 26 20 00 para 2.9, installation of GFCI receptacle is required in EMCS Enclosure. During Site Visit, we confirmed that GFCI receptacle was installed in existing EMCS enclosure. Please clarify whether GFCI receptacle is necessary to install in EMCS enclosure or not. If necessary, please indicate the location of the receptacle. Also, please provide the details information of Circuit Breaker for M‐H panel.

GFCI receptacle is required in EMCS enclosure. Refer to detail of EMCS enclosure and panel schedule in revised drawing by addendum No.1.

36 Specs.

Drawing

26 20 00 para.3.1.3

1B‐1‐AE301

(Sheet page 018)

1B‐2‐AE301

(Sheet page 025)

1B‐1‐EP101

(Sheet page 079

According to the drawing 1B‐1‐EP101, there is an indication of “New Soffit” in Sheet Notes No.5. However, soffit is not indicated in Wall Section on the drawing 1B‐1‐AE301. Also, detail drawing for soffit (1B‐2‐AE301) has been voided. Can we assume that all conduits should be exposed with paint finish as per Specification 26 20 00 para 3.1.3?

New soffit is deleted from electrical drawing, and the exposed conduit is changed to underground installation. Refer to electrical plan and diagram in revised drawing by addendum No.1. The requirement of paint finish in specification section 26 20 00 will apply to situation of exposed conduit installation.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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37 Specs.

Pre‐Bid/ Pre‐ Proposal Conference

26 20 00 para.3.1.3

Site Visit

According to the specification 26 20 00 para 3.1.3, conduit should be exposed unless indicated otherwise. If exposed conduits are installed along external wall, there will be a lot of exposed electrical conduit along with plastic refrigerant pipe cover because this plastic cover will not have enough space for additional electrical conduits and appearance of the exterior façade will not be same as the completed buildings under A/C Phase II.

During Site Visit, we understood that hand holes and underground piping for power supply cables and EMCS control cables have been installed and the explanation by the Government expressing that the same construction method should be applied to this Weatherization Phase I contract .

Please instruct weather conduits installation for power supply and EMCS cabling shall be done by exposed conduit along external wall or underground conduit with PC hand holes. If the instruction is by underground conduits installation, please provide the following information for 2, 3 and 4 Bedroom type units:‐

a) Layout plan showing U/G conduit route and hand holes location

b) Typical section of U/G conduit installation

c) Size and specific requirement for PC hand holes.

For the execution of U/G conduit installation, the PVC coated metal fencing (some of the housing units have been installed this metal fencing) should be partially removed and restored. Please clarify who will carry out this work and if this work will be carried out by the contractor, the warranty to this metal fencing should be held by contractor or not.

Conduit installation should be underground. Refer to electrical plan and diagram in revised drawing by addendum No.1. If existing metal fence is removed, it should be restored to original condition by responsibility of the contractor including the warranty.

38 Specs. 26 20 00 Para. 2.10.3.2

According to Panel Schedule for each type of unit, neither Circuit Breaker nor Disconnect Switch (Type: NFD) for HP‐2 are specified as Ground Fault.

However, circuit breaker with GFCI is required for Heat Pump unit as per Specification 26 20 00 para 2.10.3.2. Can we assume that Disconnect Switch for HP‐2 should be GFCI?

GFCI is required for only circuit breaker, not for disconnect switch including NFD type breaker.

39 Drawing No. 1‐E601 (Sheet page 080)

1B‐1‐E601 (Sheet page 080)

60A/2P non‐ fused lockable disconnect in NEMA 3R, SS enclosure is required under Notes No.2 of SOQ 3BR One‐line Diagram. We assume that lockable disconnect should be 60A/3P, not 2P. Please confirm.

Rating of disconnect switch should be same to circuit breaker.

Refer to Note and panel schedule in revised drawing by addendum No.1.

40 Drawing 1B‐5‐E601 (Sheet page 090)

1B‐5‐MH101

(Sheet page 67)

In Panel Schedule, “40 Amps/ 2 Pole/ GFCI 30mA”is specified for “HP‐1”.

However, Heat Pump unit type is indicated as “HP‐2” on the drawing 1B‐5‐ MH101. If HP‐2 is correct, it should be “30 Amps/ 3 pole/ Normal Breaker”.

Please clarify which type of heat pump unit is required..

Type of heat pump will be revised by reconsideration of HVAC system for all type of housing, and the rating of circuit breaker will be corrected. Refer to panel schdule in revised drawing by addendum No.1.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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41 Drawing 1B‐5A‐E601 (Sheet page 092)

1B‐5A‐MH101

(Sheet page 68)

In Panel Schedule, “40 Amps/ 2 Pole/ GFCI 30mA”is specified for “HP‐1”.

However, Heat Pump unit type is indicated as “HP‐2” on the drawing 1B‐5A‐ MH101. If HP‐2 is correct, it should be “30 Amps/ 3 pole/ Normal Breaker”.

Please clarify which type of heat pump unit is required.

Type of heat pump will be revised by reconsideration of HVAC system for all type of housing, and the rating of circuit breaker will be corrected. Refer to panel schdule in revised drawing by addendum No.1.

42 Drawing 1B‐E‐601 (Sheet page 097)

According to the drawing 1B‐E‐601, Home Run method is specified as EMCS wiring method from outdoor unit to outdoor unit. We would like to make sure wiring method should be Home Run, not Daisy Chain configuration for EMCS. Please clarify.

EMCS wiring shall be Daisey Chain configuration. Refer to EMCS diagram in revised drawing by addendum No.1.

43 Drawing

Pre‐Bid/ Pre‐ Proposal Conference

1B‐E‐601 (Sheet page 097)

Site Visit

According to Site Visit, exiting EMCS Enclosure was IP44‐SS (JIS C 0920/IEC 60529). However, “SS NEMA 4X” is required for EMCS Enclosure as per Detail No. 2 on the drawing 1B‐E‐601. Is it acceptable to use IP44 as alternative to SS NEMA 4X?

Since IP44 is not equal requirement to NEMA 4X, US Government will not accept as alternative.

44 Drawing 1B‐E‐601 (Sheet page 097)

In MEP Coordination Schedule, Electrical Data for HP‐2 is 208/1. We assume that Electrical Data for HP‐2 should be “208/3”. Please confirm.

Type of heat pump will be revised by reconsideration of HVAC system for all type of housing, and the rating of circuit breaker will be corrected. Refer to panel schdule in revised drawing by addendum No.1.

45 SUBSTITUE According to “Acceptable Japanese Product Substitute”, JIS C 4606 is specified as substitute product for Disconnect Switch. However, JIS C 4606 is High‐voltage type and it is not suitable for this project. Can we read as “JIS C 8201” instead of “JIS C 4606” for substitute product for Disconnect Switch?

JIS C 8201 apply to this project. Refer to revised list of Acceptable Japanese Product Substitutes by addendum No.1.

46 Pre‐Bid/ Pre‐ Proposal Conference

Site Visit According to the explanation by USG during Site Visit, clean out was installed within the space by the steel panel cover. However, there is no indication of clean out on the drawings. Considering the existing condition, can we assume that an average of 1.5 number of clean out is required per every 1 (one) number of indoor unit?

Yes

47 Drawing

Pre‐Bid/ Pre‐ Proposal Conference

1B‐1‐EP101

(Sheet page 079)

1B‐4A‐EP101

(Sheet page 087) 1B‐E‐601 (Sheet page 097) Site Visit

According to the drawings, required size of EMCS Enclosure is 450mm x 450mmx 200mm. However, the size of existing EMCS Enclosure which we confirmed during Site Visit was 1200mm x 700mm x 200mm. Can we assume that the size of EMCS Enclosure should follow the Existing one?

Dimension of EMCS enclosure is changed to 1200 x 700 x 200mm. Refer to detail in revised drawing by addendum No.1.

Query No. Target Document Reference Question Submitted by Prospective Offerors Gov't Response / Clarification

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48 Electrical Drawings

Pre‐Bid/ Pre‐ Proposal Conference

Site Visit As indicated on the sketch, power supply configuration for indoor unit for 4‐ plex building shown in the bidding drawings is grouped in front side and back side of indoor units. However, the existing power supply configuration for A/C Phase II has been done based on unit by unit configuration as indicated on the attached sketch.

Please clarify which power supply configuration should be taken (follow bidding drawings or existing).

Power supply for indoor fan coil should be unit by unit in stead of front/ back configulation. Refer to electrical plan and diagram in revised drawing by addendum No.1.

49 Pre‐proposal Conference Minutes & Record of Site Visit

(1) Information to Offerors

According to (1) Information to Offerors in the Pre‐proposal Conference Minutes & Record of Site Visit issued on 21 April 2015, Ground‐Fault Circuit Interrupters (GFCI) Outlets are required for both indoor and outdoor unit IAW National Electrical Code (NEC) requirement. However, the meaning of “outlet” is not clear. Does “GFCI outlet” mean “GFCI receptacle” or “Circuit Breaker” or “Disconnect Switch”? Please clarify the meaning

GFCI outlet is GFCI receptacle. But, GFCI is also used for circuit breaker in addition to outlet to de‐energize the circuit. Since GFCI outlet or circuit is adopted by capacity of the equipment or configuration of the wiring, this meaning apply to both of outlet and circuit breaker. This is not apply to Disconnect Switch.

50 Drawing 1A‐A‐503 (Sheet page 071) 1B‐A‐502 (Sheet page 058)

1. Please clarify whether following assumption for the new insulated glazing to new plastic window is correct or not.

a) Outer Glass of insulated glazing will be annealed Glass w/ Low‐E

b) Inner Glass of insulated glazing will be tempered Glass or laminated glass

c) Air Space will be varied due to limited space of plastic window frame and be determined based on manufactures recommendation.

a) Outer glass of inner plastic frame window is Low‐E

b) Inner glass prefers Laminated.

c) Air space and filled gas is up to the combination to clear U‐ value of 2.33 W/m2K stated in the A‐503.

51 Drawings 1A‐A‐503 (Sheet page 071) 1B‐A‐502 (Sheet page 058)

Note 2 of the drawing 1A‐A‐503 indicates “Pair‐Glazing Combination to be U=2.33 W/m2.K minimum”.Please confirm that Pair‐Glazing means that new insulated glazing for new plastic window or existing external window glazing plus new plastic window glazing (insulated glass)?

It is acceptable that the total system of plastic frame plus Low‐E insulating glass shall clear the U‐value.

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52 Drawings 1A‐A‐503 (Sheet page 071) 1B‐A‐502 (Sheet page 058)

During site visit, we have found that there are several window sill conditions on sites. Taking this inconsistent site condition into our consideration, we have prepared attached proposal for your consideration.

As mentioned, there are two type of existing window system, one is double layer of alum. window system and others is single layer of alum. window plus plastic window installed into the adjacent wooden trim. According to our survey on site, the minimum width of the existing window trim is less than 30mm. IAW drawing 1A‐A‐503, the additional trim is fixed to the existing trim to receive the new plastic window frame. However, we consider that this method will be insufficient to receive the loading of the new plastic window frame and new insulated glass and the existing wooden trim should be removed and replaced with new wider wooden trim. In addition, the existing wooden trim fixed to the ceiling for curtain rail fixing and blind fixing should be also replaced. For this work, the existing gypsum wall board at wall and ceiling should be partially cut/removed and restored.

It is not recommendable to have such dusty and messy work in occupied units. Our proposal will not involve any work to the existing gypsum board at wall and ceiling.

Please examine our proposal carefully and advise whether our proposal is acceptable or not.

CE has checked no plastic extention attachment is no longer using because their wood trim is larger than 70mm for plastic IGU, and Aluminum window trim is small so that the detail is revised to add new 70x30mm (40x30mm for 1B Type 2) wood trim with wood support to sill to nail to wall furring.

A‐503 sectional and plan details for the window trim are revised to 2 types of conditions, however, the bidders shall estimate all windows are small Aluminum trim to add the wood trim intallation.

53 Specs. 08 87 13 para. 2.2 Spec. 08 87 13 para. 2.2 indicates that “Minimum thickness of sun control film to be 2.0 mil (50micron).”

In Attachment 9 for Catalogue Cut, two types of films have been indicated.

Nano 80s, which has 76 micron thickness, and Neutral 70 (marked by red), which has 45micron thickness. We assume that this red color making means that Natural 70 is acceptable and considered to meet the contract requirement. Please advise.

Spec section paragraph is revised to 45 micron.

54 Specs.

Acceptable Japanese Product Substitutes

08 81 00 There is no Japanese Product Substitutes for glazing. Is it acceptable to use Japanese brand insulated glazing (JIS certified) and relevant glass fixing to the frame by the gasket, which should be all recommended by the manufacture, if the proposed Japanese glass has U value equal or exceeding 2.33Wm2K?

YES

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55 Specs. 02 41 00 para.3.1.2 Specs indicates that “Finished surfaces of patched area shall be flush with the adjacent existing surface and shall match the existing adjacent surface as closely as possible as to texture and finish.” According to our past experiences and survey on Site Visit held on 21 Apr. 2015, painting color, texture and gross for wall and ceiling in residential units are inconsistent.

Based on the said condition, we consider that the color matching with the existing surrounding area at wall and ceiling paint will be nearly impossible.

Therefore, please indicate the color code or product number of painting material, which is normally used by Housing Maintenance, for the use of patch‐up painting by the contractor. Then all patch‐up paint will be dene by designated color. Is this procedure acceptable?

No.

Since each building exterior/interior color may not be the same due to the fading.

New paint color designated will not match to the surface, therefore the painter shall mix the color to match.

56 Specs. 02 41 00 para.3.2.2 Specs indicates that “Concrete, Masonry and Noncombustible materials shall be disposed of in the disposal Area.”

Please let us know the location of disposal area, if possible. In case, disposal area is not available, can we assume that these wastes shall be removed/disposed to off‐base approved disposal area by contractor’s expense.

This paragraph intention is "removed/disposed to off‐base approved disposal area by contractor’s expense".

57 Spec.

Drawing

07 57 16 para.3.1 Para.3.1.2, Section 07 57 16 of the Specification indicates that “A‐Remove existing BUR and prepare the surface to accept new ventilate sheet.”

Sheet Note No.3 on the architectural drawings indicates that “New spray applied SPF roof membrane & R‐20 rigid insulation over existing roof”. We assume that the existing BUR will be remained and be partially patched‐up for receiving new ventilate sheet. Please confirm.

Yes.

Spec section isto use in case of partial/entire BUR to remove.

Roof work requires to provide insulation and urethane spray coating system.

58 General During site visit on 21 April 2015, we have found that the works for covered car parking and PVC coated metal fencing are ongoing. Please give us the dates of completion for these works, if available/possible. In case co‐ ordination for working schedule and area is necessary, who will take the co‐ ordination responsibility? Please advise.

Currently AF does not tell when all works are done.

Title II inspector is you POC and coordinate those works for you.

59 General Can we assume that the area for the contractor’s site office, storage and car park space will be provided by the Government by free of charge at both in North and Main Base area?

Not able to promise to provide on‐base office/storage/parking, etc.

Recommend to rent an office building to run this project of 700 days on off‐base.

If on‐base SPACE is available, it is not FREE that the contractor shall install the office building and pay for electricity, water, sewage and tell line, etc., by his expense.

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60 Drawing 1B‐1‐AE‐301 (Sheet page 018)

We assume that the existing ceiling has been already provided R‐15 insulation and we provide R‐15 insulation only to newly installed ceiling access panel. Please confirm.

Drawing 1‐AE‐301 does not requie to add insulation.

61 Drawing 1B‐2‐AE‐102 In Sheet Note No.2, the replacement of existing gutters and downspouts is required. Please confirm that no particular manufacture’s product is required.

#2 in hex is deleted by Addendum #1.

62 Drawing 1B‐M‐501 (Sheet page 071)

The Stainless Steel 12 gauge hat channel to cover CD pipes on RC separation wall is indicated on the drawing. However, we cannot found this hat channel during sit visit held on 21 April 2015. CD pipes have a gentle gradient to maintain smooth water flow and it seems to be difficult to install SSTL hat channel on to gradient CD pipes. Please advise whether installation of SSTL hat channel is necessary or not.

Not required.

63 Drawing 1B‐A‐502 (Sheet page 058)

The A/C canopy detail is indicated on the drawing 1B‐A‐502. However, this detail is differed from the existing A/C canopy install under A/C Phase II contract. Can we follow the design of the existing A/C canopy installed under A/C Phase II contract?

Yes.

Shopdrawing will be approved and as‐built will reflect it.

64 Drawing 1A‐A‐503 Can we follow the profile of metal roof cladding for A/C canopy installed under A/C Phase II contract?

Yes.

Shopdrawing will be approved and as‐built will reflect it.

65 Drawing 1A‐A‐503 During site visit on 21 April 2015, we have found that the recess has been provided to the vertical wooden trim to plastic window. After installation of new plastic window, this recess will not be fit to newly installed plastic window due to change of glazing and alignment of window frame. In case, is it necessary to fill up the existing recess by wood or just leave as it is?

CE has checked no plastic extention attachment is no longer using because their wood trim is larger than 70mm for plastic IGU, and Aluminum window trim is small so that the detail is revised to add new 70x30mm (40x30mm for 1B Type 2) wood trim with wood support to sill to nail to wall furring.

A‐503 sectional and plan details for the window trim are revised to 2 types of conditions, however, the bidders shall estimate all windows are small Aluminum trim to add the wood trim intallation.

66 Attachment 9 Catalogue cut

7.4 There is a description that “FL board NU to be combined to form 75 mm thick”. Can we assume that 75 mm thick FL board NU will meet the specified requirement (R‐20)?

Yes.

However, it is necessary for the contractor to calculate 75mm (50mm+25mm) will clear R‐20.

67 Specs. 08 51 15 Can we use a Japanese manufacture for the plastic thermal break windows other than LIXSIL or YKK, if the quality of the proposed product is equal or exceed the specified material?

LIXIL is revised to YKK.

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68 Specs.

Drawing

01 11 00 para. 1.1.2 1A‐G‐003 (Sheet page 003) 1B‐G‐003 (Sheet page 003)

There is a requirement for ACM bulk sampling, which is 25% of sampling for each type P1 and RN, in Specs and drawing 1B‐G‐003. However, the drawing 1A‐G‐003 does not include such description.

Please clarify the followings:‐

a) Can we assume that bulk sampling requirement is only applicable to Package1B?

b) If asbestos has been detected from joint compound of gypsum board, we assume that ACM abatement work caused by this bulk sampling shall be treated as Modification to the original Contract and all ACM abatement cost and time incurred shall be reimbursed to the Contractor. Please confirm.

c) The ACM abatement Plan will be prepared to determine the abatement method and extend of contamination and negative pressured area and if the detected unit is required to make fully vacant condition, we assume that the Government will take an initiative for this issue.

a) The paragraph 1.1.2, title is revised to add "(applies to 1B only)" to the end.

b) Yes.

C) ACM abatement for interior gypsum board joint compound is minimized by the wet method, or another method for the bid purpose. Not to think the full evacuation of the facility.

69 Specs Drawing

08 81 00 para. 2.1.3 1A‐503 (Sheet page 071) 1B‐502 (Sheet page 058)

Can we assume that tempered glass or laminated glass should be used for all glass facing interior area of insulated glass fixed in new plastic frame window as “Safety Glass”?

Yes.

Laminated glass prefers.

70 Can we confirm that A/C canopy indicated on drawing 1B‐A‐502 is not required for SOQ type unit (total 8 nos. of SOQ units)?

No.

Those drawings are to be revised to show the canopies.

71 Drawing 1A‐4N‐AE‐101 There is a red color rectangular marking to window type B. Is there any special meaning?

No meaning.

Pls ignor.

72 Drawing 1A‐7A‐AE‐101 (Sheet page 043) 1A‐A‐601 (Sheet page 072)

In the drawing 1A‐A‐601, opening type B in the chart for type 7A indicates “film”, however on the drawing 1A‐7A‐AE‐101, type B opening is indicated as “new plastic frame window”. Please clarify.

Revised A601 is provided.

73 Drawing 1A‐A‐601

1A‐4N‐AE‐101

1A‐6A‐AE‐101

1A‐8N‐AE‐101

1A‐9N‐AE‐101

There are following discrepancies between floor plan of each type of units and window opening schedule. Please clarify.

Bldg type‐ opening type on floor plan opening schedule 4N‐C not indicated indicated 6A‐2 and D indicated not indicated 8N‐B and C not indicated indicated 9N‐C not indicated indicated

Revised A601 is provided.

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74 Drawing 1A‐15N‐AE‐101 In the drawing 1A‐A‐602, opening type A in the chart for type 15N indicates “film”, however on the drawing 1A‐15N‐AE‐101, type B opening is indicated as “new plastic frame window”. Please clarify.

Revised A602 is provided.

75 Drawing 1A‐6A‐AE‐101 In the drawing 1A‐A‐601, opening type 2 in the chart for type 6A indicates “plastic sash”, however on the drawing 1A‐6A‐AE‐101, type 2 opening is indicated as “window film”. Please clarify.

Revised A601 is provided.

76 Drawing 1A‐12J‐AE‐101 1A‐A‐602

In the drawing 1A‐A‐602, there is a Type B new plastic frame window as indicated “3 panel SLD (fix and sliding) in size of 3100mm x 1760mm. Please provide simple elevation of this window.

Revised A602 is provided.

77 Drawing 1A‐A‐503 and 601 According to site survey on 21 April 2015, we found that the existing glazed sash have an intermediate transom. We assume that newly installed plastic sash will not have intermediate transom. Please confirm.

Intermediate transom (inner sash of double‐sash) is to be removed.

78 Drawing 1A‐A‐503 and 601 According to the typical section on drawing 1A‐A‐503, the existing alum.

rails and frame of the removed windows will be exposed as it is after removal of inner windows. Please confirm that no special treatment to remained part of the rail and frame will be required.

As common sense, the cleaning is mandatory.

79 Drawing 1B‐2‐AE‐201 and 1B‐

6‐AD101

There are some expressions in the drawings for window film installation.

On drawing 2‐AE201, does "INSTALL SUN‐CONTROL WINDOW FILM TO ALL EXISTING WINDOW/DOOR OF INNER SIDE" in sheet notes No. 2 also include the locations which are pointed by No. 3? On drawing 6‐AD101, does "PROVIDE SUN‐CONTROL WINDOW FILM." in sheet note No. 2 mean the film installation only for the location pointed as No. 2?

No.

Specified works are applied to the pointed windows.

80 RFP If the resultant contract is with joint ventures, can the company name on the certification document of performance bond be printed with only one of JV companies?

Yes.

81 Drawing Specs

M‐601 Sec. 238202, Para.

2.2.1

Heatpump unit schedule on sheet M‐601 indicates 200 V/3 PH/5 0Hz, whereas specification 23 82 02 section 2.2.1 calls for 208 V/1 PH/50 Hz.

Please clarify the electrical requirements.

Revised spacification 238202, page8, para 2.2.1 to "single phase or 3 phase 200 Volts/50 HZ split heat pump".

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82 Specs

Acceptable Japanese Product Substitutes

Drawing

Sec. 238202, Para.

2.2.1.1

M‐503

Specification 23 82 02 section 2.2.1.1 paragraph 1. d states “the outdoor unit shall have horizontal discharge airflow”. Please confirm if government accepts vertical discharge airflow as long as it is an approved manufacturer in attachment 8 acceptable JP products. If vertical discharge airflow is acceptable, architectural canopy roof shown in sheet M‐503 is not feasible.

Please confirm if government accepts manufactures’ accessories (weatherhood) in lieu of architectural canopy roof.

Not concur. Horizontal discharge unit is selected.

83 Specs

Acceptable Japanese Product Substitutes

Sec. 23 82 02, Para.

2.2.1.1

Specification 23 82 02 section 2.2.1.1 states “outdoor unit shall have a sound rating no higher than 52dB(A)”. Please confirm if government accepts a higher sound rating as long as it is an approved manufacturer in attachment 8 acceptable JP products.

Revised spcification 238202, page 8, para2.2.1.1 Maximum sound rating for AC outdoor unit to 54 dB.

84 Drawing M‐601 Fan coil unit schedule on sheet M‐601 indicates (4) different fan speeds.

Please confirm if government accepts an approved manufacture’s standard fan speeds.

4 speed is Housing project standard .

85 Drawing M‐601 Sheet M‐601, “FAN COIL UNIT SCHEDULE”, notes# 1 states that the BACnet compatible unit shall be connected to the “HEAD UNIT”. Please clarify what the “HEAD UNIT” is.

Condensing unit built‐in controller.

86 Drawing M‐601 Sheet M‐601, “FAN COIL UNIT SCHEDULE”, notes# 1 states that the BACnet compatible unit shall be connected to the “HEAD UNIT”. Please clarify what type of communication media (i.e. existing fiber, new fiber, wireless, etc.)

shall be used from the “BACnet compatible unit” to the “HEAD UNIT”?

Indoor fan coil unit connect to Heatpump built in controllrer (HEAD UNIT) of outdoor condensing unit which is Air conditioninmg unit Manufacture's cable. Condensing unit (HEAD UNIT) connect BACnet adaptor which is also Manufacure's cable.

This is contractors resposeibility. And Between BACnet ADAPTER and Front inn FACIMA by CE vertial run cable by other.

87 Drawing M‐601 Sheet M‐601, “FAN COIL UNIT SCHEDULE”, notes# 1 states that the BACnet compatible unit shall be connected to the “HEAD UNIT”. Please clarify what type of protocol (i.e. BACnet/MSTP, BACnet/IP etc.) shall be used from the “BACnet compatible unit” to the “HEAD UNIT”?

Protocol is "BACnet (TCP/IP)

88 Drawing 1‐EP101 Sheet 1‐EP101, Sheet Notes# 3 states that there is a detail for the EMCS cabinet on sheet E‐601 detail 2, but a detail of the EMCS cannot be found.

Please clarify if a detail will be provided.

EMCS enclosure detail is shown on drawing sheet E‐601 detail 2.

89 Specs Sec. 23 09 33, Para.

2.1.1

Specification Section 23 09 33, Par. 2.1.1 (page 5 of 7) specifies to route the wires for “MNET”, but is this referring to Mitsubishi Network? Please clarify if the Mitsubishi network is the only allowable manufacturer (sole source).

MNET (Mitsubishi netwark) is existing system, and for refference only. If other system is proposed, contractor must provide compatible gateway connection to include all necessary equipment for current misawa EMCS system.

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90 Specs Sec. 23 09 33, Para.

2.1.2.1

Specification Section 23 09 33, Par. 2.1.2.1 (page 6 of 7) specifies to use thermostats conforming to NEMA DC 3. Please clarify if this will apply for thermostats manufactured in Japan.

Add variation of Spece themostat. Add note to spacification 230933, page 6, para 2.1.1 "When the contractor chooses other than NEMA DC 3, it must be bilingual."

91 Specs Sec. 23 09 33, Para.

2.1.1

Specification Section 23 09 33, Par. 2.1.1 (page 5 of 7); please confirm that the government will be responsible for programming the existing EMCS at the maintenance office to communicate with the new EMCS at each building.

US Government responsible for setup and connectivity of Base LAN. Contractor shall be responsible for any necessary equipment needed for programming of existing EMCS.