Attachment_3-Pre-Bid_Addendum_Rincon_FFS.pdf

RINCON FIRE STATION ELECTRICAL PRE-BID ADDENDUM #1

December 5, 2022

Change # - Relevant Drawing/Specification #’s: Change Description

1) E001: The following symbols, for wall and ceiling mounted coaxial outlets, are being provided to reflect new content in this addendum.

COAXIAL OUTLET (FEMALE) - WALL, CEILING MTD. +18” AFF UON

2) ES101: Provide and install a 20A GFI duplex receptacle at the gate operator, wired to the line side of the 30A gate operator disconnect. Receptacle shall be installed in a weatherproof box, attached to the same strut as the disconnect, and employ a CEC compliant weatherproof “while in use” cover. See sheet keynote 15 on original version of ES101 for details on strut and disconnect installation.

3) E102F & Detail 6 / E501: Instead of installing each L15-30R receptacle for RACK1 and RACK2 in a 4”x4” box, Contractor shall install each receptacle in a duplex electrical outlet box, Chatsworth Products Inc (CPI) 13698-001 or approved equal. Box shall be installed at the rear of RACK1 and RACK2, near bottom of rack, as shown in manufacturer’s installation instructions. Rather than routing above the ceiling, the 120V/30A circuits for each receptacle shall route from Panel B via 3/4" EMT which transitions to SCH40 PVC to run below grade and stub up at rear of each rack. Conduit shall stub up at mid-point between edge of rack post and outlet box so as not to interfere with rack installation. SCH40 PVC shall then transition to FMC to route to outlet box.

4) E112F & E102W: Instead of installing fiber optic cable (FOC) between the MTTB at the FS and TTB at the Vehicle Wash Building and coiling for future use, the fiber shall be terminated and tested as described below:

At RACK1 in Elec/Telecomm room of FS, all 12 strands of FOC shall be fusion spliced to a pigtailed splice cassette with six (6) female LC duplex connectors, Corning CCH-CS12-E4- P00QE or approved equal. Cassette shall be installed within a rackmount closet connector housing, Corning CCH-01U or approved equal. CCH-01U shall be installed in RACK1, 4RU below CAT6 patch panels.

At TTB in Vehicle Wash Building, all 12 strands of FOC shall be fusion spliced to a pigtailed splice cassette with six (6) female LC duplex connectors, Corning CCH-CS12-E4- P00QE or approved equal. Cassette shall then be installed within a wall mounted closet connector housing, Corning SCH-01C or approved equal. SCH-01C shall be mounted in the upper right corner of the TTB. Provide and install d-rings, cable clips, etc, as needed to route and manage FOC on TTB.

Attachment 3 #9TSC0105 Rincon Fire Station Replacement-General Contractor

CAL FIRE

Rincon Fire Station Electrical Pre-Bid Addendum (Updated December 5, 2022) 2

Technical Services & Engineering

A minimum of two 18” diameter service loops for FOC shall be created and secured at both RACK1 and the TTB.

Once FOC installation and termination is complete, Contractor shall perform bi-directional optical loss testing at 850nm and 1300nm via optical power transmitter and meter to determine system loss. Test report with trace and test results, fiber/strand info, test equipment, time/data, etc. shall be formally submitted to CAL FIRE. This testing shall be performed instead of the OTDR testing currently required per E102W.

5) E112F: Contractor shall provide CAL FIRE two (2) 3m 2F OM4 50u LC duplex to LC duplex fiber patch cords, Corning 040402R5816003M or approved equal. Patch cords shall be delivered to a CAL FIRE representative.

6) E112F (see attached sketch E112F for outdoor outlet locations): In all six bedrooms in the Barracks there is a single voice/data outlet with four (4) CAT6 cables terminating into a single gang four port wall plate. In addition to the four (4) CAT6 the Contractor shall provide and install RG-6 coaxial cable at each of these outlets and pull back to RACK1 with CAT6.

At RACK1, RG-6 shall be coiled in a 20’ loop for future use by CAL FIRE. In each bedroom terminate and connect RG-6 via a feedthrough QuickPort® F-connector, Leviton 41084-FWF or approved equal. To support the installation of this F-connector the four port wall plates in the bedrooms shall be changed to single gang six port wall plates. The F-connectors shall be inserted into the fifth port and a blank installed in the sixth port.

Provide and install two (2) outdoor voice/data outlets, each containing two (2) CAT6 and one

(1) RG-6 with feedthrough QuickPort® F-connector, described above. CAT6 connectors and RG-6 F-connector shall be installed in a four port water-resistant faceplate, Panduit CFPWR4CIG or approved equal. Install a blank in the fourth port. Locations for voice/data outlets are shown in attached sketch E112F.

7) E112F & E604: In the same 2” conduit as the FOC, Contractor shall provide and install 6C/18AWG, stranded, foil-shielded, tinned copper cable rated for direct burial, Belden 5304F1 or approved equal, from the MTTB in the FS to the TTB in the Vehicle Wash Building. Coil cable in a 30’ loop at MTTB and TTB for future termination by CAL FIRE.

8) E112F: Provide and install, at rear of RACK1, a horizontal rackmount ground busbar kit, CPI TS1057246 or approved equal, consisting of 1/4" thick by 2” high copper busbar, isolation pads/insulators, and mounting hardware. A separate insulated #6 AWG, copper, 19 strand grounding conductor, connected to the ground bus bar in Panel B, shall be installed and terminated on the rackmount ground busbar via a copper compression two-hole long barrel connector, Ilsco CLWD-6-14-1 or approved equal.

(Updated December 5, 2022) 3

9) E121F: The Automatic Daylighting Controls in the Utility Work Room shall be omitted.

Consequently, the DPS shown in this room shall be removed and the fixtures in this room shall only be controlled by the wall mounted DOS. Updated lighting control wiring diagrams have not been provided with the Pre-Bid Addendum, however, these changes shall be capture in the Digital Lighting Control System submittal.

10) E121F/E122F: For EX1 fixtures at exterior doors install a 4”x4” j-box to the top of the door header, centered above the door. The EX1 fixtures in Hall 3 above the Apparatus Entry/Office interior door and at the Hall 1 / 2 intersection in the Barracks shall be mounted at 7’-6” AFF, to center of sign/lights.

11) E122F: All L10 fixtures in the Bedrooms shall be mounted at 7’-6” AFF.

12) E121F, E122F, & E101S: All Lutron MS-Z101 0-10V Dimmer / Occupancy Switches shall be changed to Legrand Wattstopper DW-311-WH.

13) E122F & M102F (see attached sketch E122F for updated Kitchen/Pantry and Library lighting plans): Lighting in Kitchen/Pantry and Library shall be changed from L1 and L4 1x4 LED troffers to L8 6” LED recessed downlights. In the Kitchen/Pantry, all fixtures shall be connected to the same switch leg “e”. Updated fixture placement is shown on E122F. In conjunction with this change, the Automatic Daylighting controls for the Kitchen/Pantry shall be omitted. Consequently, the DPS shown in the Kitchen shall be removed, all Kitchen/Pantry fixtures shall be connected to the same switch leg “e”, and all associated controls shall control only switch leg “e”. These changes are shown on E122F. Lastly, with only a single switch leg “e” present in the Kitchen/Pantry, the dimming room controller for this area shall be changed from a 3-relay to a 1-relay controller. Updated lighting control wiring diagrams have not been provided with the Pre-Bid Addendum, however, these changes shall be capture in the Digital Lighting Control System submittal.

In order to alleviate a conflict with the placement of one of the new recessed downlights, the 245 cfm 10x10 supply ceiling diffuser (SD-1) in the Kitchen, mounted above the north end of the island, shall be moved to the left (north) one ceiling joist, moving it closer to the Dining Room.

(Updated December 5, 2022) 4

14) E122F (see attached sketch E122F for updated Day/Dining and Physical Training Room lighting plans): Automatic Daylighting Controls in the Day, Dining, and Physical Training Rooms shall be omitted. Consequently, the DPS in these rooms shall be removed. In the Day Room, all fixtures shall be on switch leg “a”. In the Dining Room, all fixtures shall be on switch leg “c”. In the Physical Training Room, all fixtures shall be on switch leg “j”. The switch legs for all associated DOS, Digital Dimmers, and Digital switches shall be updated to control the aforementioned switch legs, as shown. With a single switch leg in each of these areas, the dimming room controllers for each shall be changed from a 2-relay to a 1-relay controller. Updated lighting control wiring diagrams have not been provided with the Pre-Bid Addendum, however, these changes shall be capture in the Digital Lighting Control System submittal.

15) E122F (see attached sketch E122F): Provide a wall mounted digital switch, Legrand LMSW-101 or approved equal, adjacent to Lighting Control Panel in Elec/Telecomm Room, which shall be programmed as a digital override switch that turns on all exterior fixtures at full brightness for a period of two hours, after which they shall return to their normal programmed operation. Install label on switch and/or wall plate which states “Exterior Lighting Override - 2 Hours On”. This change shall be reflected in the Digital Lighting Control System submittal.

16) E502 (see attached Details 3 & 5 from E502): For Underground Conduit Section Details 3 & 5, the minimum spacing between Elec-Elec and Comms-Comms conduits was reduced from 2.5” to 2”. In support of this change, note 4 was updated to clarify the installation of duct spacers to maintain this spacing.

17) E502 (see attached sketch E502-SK1 for new detail): As shown in sketch E502-SK1, provide and install a 12”H x 12”W x 6”D NEMA 4 enclosure with steel back panel, Hoffman A1212CHFL and A12P12 or approved equal, at each antenna wall mount. Each enclosure shall house a ground splitter bar, Hoffman ASG8 or approved equal, and provide space for the future installation of lightning arrestors (NIC) by CAL FIRE. Contractor shall install cable gland fittings in enclosure as shown on E502-SK1, required for installation of ground wires, by Contractor, and antenna cables (NIC), by CAL FIRE.

18) E505 (see attached Detail 2 / E505): Detail 2 - Ceiling Mounted Speaker at 1-hr Rated Ceiling, has been updated.

19) E601 & Specification Section 262416: Sheet keynote 7 states that Panels A, B, S, and W shall be Eaton Type PXBCM or approved equal. Eaton Type PXBCM panels come from the factory with a complete branch circuit monitoring (BCM) system, i.e. a BCM controller and solid core CT’s for the mains and all branch circuits. Paragraph 2.5 of Specification Section 262416 provides details on the BCM requirements. CAL FIRE now only requires that Panels A, B, S, and W be “BCM ready”. Please see below for details on this updated requirement.

(Updated December 5, 2022) 5

“In order to comply with California Energy Code Title 24 Part 6 Section 130.5(b), Panels A, B, S, and W shall support future field installable branch circuit monitoring via CT’s or other energy metering devices without having to replace panelboard interior or enclosure or removing or rewiring branch circuit devices. In support of this requirement, each circuit for lighting and appliance branch circuit panelboards shall feed only one load type.”

20) E603: L3/L3E lighting fixtures, options #1 and #2, shall be updated as shown below.

Type Option #1 Option #2

Watts Color Temp Mounting Description

L3

Lithonia

CPANL-1X4-AL01-

SWW7-M4

w/ DCMK 14

Williams

ASM-4-

L46_935-S-S-

A-DIM-UNV

41/34W 3500K Surface

Architectural slim/flat panel LED fixture w/ Al frame and 0-10V dimming. Fixture shall be CSA certified.

L3E

Lithonia

CPANL-1X4-AL01-

SWW7-M4

w/ DCMK 14 &

ILBLP CP10 HE SD

A

Williams

ASM-4-

L46_935-S-S- A-

EM/BSL310LP-

DIM-UNV

41/34W 3500K Surface

Same as L3 but w/ constant 10W CA Title 20 MAEDbS certified EM driver. Lithonia EM driver not integrated into fixture, thus, shall be remote mounted adjacent to fixture.

21) Specification 111100 - Commercial Laundry Equipment: The Unimac UWT065N2 model extractor washer currently specified in paragraph 2.3.A shall be replaced with a Unimac UWT065V30LX050E. This model has a 100-G force max extraction speed and includes the chemical injection kit.

Sketches Attached to Electrical Pre-Bid Addendum:

1) E112F: Barracks Voice/Data/PA System Partial Plans

2) E122F: Barracks Lighting System Partial Plans

3) E502 / Detail 3: Underground Conduit Section Detail - Other Areas

4) E502 / Detail 5: Underground Conduit Section Detail - Under Building Foundation

5) E502-SK1: Antenna Wall Mount & NEMA Enclosure Elevation Detail

6) E505 / Detail 2: Ceiling Mounted Speaker at 1-hr Rated Ceiling Detail

V#

04-119744

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TECHNI CAL SERV I CES Capital Out lay Real Estate Surveying Architecture & Engineering C ons tru ct ion Ma na ge me n t

To we rs

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JOB NUMBER: DATE:

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REFERENCE SHEET NUMBER

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REFERENCE SHEET TITLE:

DESCRIPTION:

PAGE NO.:

2305PROJECT TITLE:

RINCON

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL,

CALIFORNIA 95073, SANTA CRUZ COUNTY

SCALE:

2 1 OF 1

PRE-BID ADDENDUM

BARRACKS VOICE/DATA/PA SYSTEM

PLAN

12/03/2022

EG

E112F V1

BARRACKS VOICE/DATA/PA SYSTEM PARTIAL PLANS

3/16" = 1'-0"

/0

4/

7:

:3

/C /U se rs

/E gi ffo rd

/D oc um en ts /P ro je ct s/

FS

/R in co n/ P

R E

-B

ID

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D E

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2F

O ut do or

T el co O ut le ts

8.

5x un fla tte ne

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M

AT

CH

L

IN

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DINING

ROOM

MTTB

WP

RACK1

RACK1 4

PHYSICAL

TRAINING

RACK1

MTTB

WP

4 4

MOUNT AT 10'-0

AFG, TYP.

AND EDUCATION

CENTER

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DATE:

A/E:

PROJECT TITLE:

SOQUEL

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL

CALIFORNIA 95073, SANTA CRUZ COUNTY

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1"

JOB NUMBER: 2305

REFERENCE SHEET TITLE:

TECHNI CAL SERV I CES Capi tal Out lay Real Estate Surveying Architecture & Engineering C ons tru ct ion Ma na ge rs

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DESCRIPTION:

REVISION NO.:

REFERENCE SHEET NUMBER

V#

PAGE NO.:

DSA APP NO.: 04-119744

SCALE:

PRE-BID ADD.

12/05/2022

EG

BARRACKS LIGHTING

SYSTEM PLAN

E122F V1

BARRACKS LIGHTING SYSTEM PARTIAL PLANS

3/16" = 1'-0"

/C /U se rs

/E gi ffo rd

/D oc um en ts /P ro je ct s/

FS

/R in co n/ P

R E

-B

ID

A D

D E

N D

U M

/W or ki ng

D ra w in gs a nd S ke tc he s/

E

2F

B ar ra ck s Li gh tin g S ys te m P ar tia l P la n (1

1x un fla tte ne d)

.p df

/0

5/

1:

:0

DIMM

OS

DOS

F j

DOS

h

F

DRC

DIMM

OS

DOS

a,b,c b

DIMM

OS

DRC

DRC

DRC

DRC

DOS

d

DOS

e

F

DRC

DRC

DRC

F a c a j c e j

DOS

g

DOS

g a

DOS

DOS

c a

FACP

M

AT

CH

LIBRARY

LAUN

DINING

ROOM

KITCHEN

PHYSICAL

TRAINING

STORAGE 1

HALL 1

H A

LL

BATHRM

ENTRY

PANTRY

DAY ROOM

MECH

ELEC /

TELECOMM

ISLAND

L1 K-25a

L1 K-25a

L1E K-25EM,a

L1 K-25a h i

L1 K-25c

L1E K-25EM,c

L1E K-25EM,c

EX1

26EM

L1 K-25c

L12E

16,EM

L12

K-25e L3E

27EM,g

(TYP)

L3E

27EM,g

EX1

26EM

K-25

27h

L1E 26EM,j

L1 26j

L1 26j

L1E 26EM,j

EX1

26EM

L5E 27EM,a27

L5E 27EM,a

L4

L5 26a

26a

L3 27d

L3 27d

L12E

16,EM

EX1

26EM

L3E 27EM,d

27d,g 26a,b,c 26d,e,f 27a,b,c

L12

L12E

16EM

L5E 27EM,a

PANEL LTB 16

K-25j K-25j

K-25a K-25c

L8 38a

L8

L8 27a

L5 26a

INSTALL AT 9'-6" AFF,

TYPICAL OF TWO 11 (TYP)

c e

(TYP)

(TYP)

(TYP)

17 TYPICAL OF THREE

FACP

L8 K-25e(TYP OF 11)

5(TYP)

(TYP)

PANEL KPANEL B

L8 27h

(TYP OF 6) 8

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DRAWN BY:

DSA APP NO.:

REFERENCE SHEET NUMBER

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REVISION NO.:

REFERENCE SHEET TITLE:

DESCRIPTION:

PAGE NO.:

2305PROJECT TITLE:

RINCON

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL,

CALIFORNIA 95073, SANTA CRUZ COUNTY

SCALE:

2 1 OF 1

PRE-BID ADDENDUM

ELECTRICAL DETAILS

12/04/2022

EG

E502 V1

UNDERGROUND CONDUIT SECTION DETAIL - OTHER AREAS

NTS

/0

4/

8:

:3

/C /U se rs

/E gi ffo rd

/D oc um en ts /P ro je ct s/

FS

/R in co n/ P

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-B

ID

A D

D E

N D

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/E

2- R

(D et ai l 3

- U nd er gr ou nd

C on du it

S ec tio n

D et ai l -

O th er A re as

8.

5x un fla tte ne d)

.p df

ELEC COMMS

NOTES:

1. TOP OF TRENCH CONSTRUCTED PER APPLICABLE PAVEMENT, CONCRETE SLAB, OR LANDSCAPING

REQUIREMENTS.

2. TWO SECTIONS OF 6" DETECTABLE WARNING TAPE WITHIN BACKFILL 10" ABOVE UPPER CONDUITS.

3. 4" MINIMUM SPACING (EDGE-EDGE) BETWEEN ELEC AND COMMS CONDUITS, AS SHOWN.

4. INSTALL DUCT SPACERS TO MAINTAIN 2" MINIMUM SPACING BETWEEN ELEC CONDUITS

(EDGE-EDGE) AND 2" MINIMUM SPACING BETWEEN COMMS CONDUITS (EDGE-EDGE).

5. DETAIL IS A TYPICAL ARRANGEMENT WHERE CONDUITS ARE ASSUMED TO BE 2" PVC SCH40, THUS, ARE DRAWN WITH AN OUTSIDE DIAMETER OF 2-3/8". FOR ADDITIONAL AND/OR DIFFERENT SIZE

CONDUITS, WIDTH OF TRENCH AND CONDUIT POSITIONS SHALL BE ADJUSTED TO MAINTAIN

PRESCRIBED SPACING.

M

IN

" B

EL

OW

D

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W

AY

S, " M

IN

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LS

EW

HE

RE

2" T

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4"

3" 2"

SAND BEDDING AND

INITIAL BACKFILL

COURSE, FILL

AROUND CONDUIT

EXISTING

SOIL

EXISTING

SOIL

FINAL BACKFILL,

SEE NOTE 1

DETECTABLE WARNING

TAPE, 6" WIDE

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DSA APP NO.:

REFERENCE SHEET NUMBER

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REVISION NO.:

REFERENCE SHEET TITLE:

DESCRIPTION:

PAGE NO.:

2305PROJECT TITLE:

RINCON

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL,

CALIFORNIA 95073, SANTA CRUZ COUNTY

SCALE:

2 1 OF 1

PRE-BID ADDENDUM

ELECTRICAL DETAILS

12/04/2022

EG

E502 V1

UNDERGROUND CONDUIT SECTION DETAIL - UNDER BUILDING FOUNDATION

NTS

/0

4/

7:

:2

/C /U se rs

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/D oc um en ts /P ro je ct s/

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-B

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2- R

(D et ai l 5

- U nd er gr ou nd

C on du it

S ec tio n

D et ai l -

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CONCRETE SLAB

SANDVAPOR BARRIER

SAND BEDDING AND

INITIAL BACKFILL

COURSE, FILL

AROUND CONDUIT

DRAINAGE

COURSE

DETECTABLE WARNING

TAPE, 6" WIDE

NOTES:

1. 12" FROM TOP OF CONCRETE SLAB TO TOP OF UPPER CONDUITS.

2. TWO SECTIONS OF 6" DETECTABLE WARNING TAPE WITHIN FIRST LAYER OF SAND,

5" BELOW TOP OF CONCRETE SLAB AND 7" ABOVE UPPER CONDUITS.

3. 4" MINIMUM SPACING (EDGE-EDGE) BETWEEN ELEC AND COMMS CONDUITS, AS SHOWN.

4. INSTALL DUCT SPACERS TO MAINTAIN 2" MINIMUM SPACING BETWEEN ELEC CONDUITS

(EDGE-EDGE) AND 2" MINIMUM SPACING BETWEEN COMMS CONDUITS (EDGE-EDGE).

5. DETAIL IS A TYPICAL ARRANGEMENT WHERE CONDUITS ARE ASSUMED TO BE 2" PVC SCH40, THUS, ARE DRAWN WITH AN OUTSIDE DIAMETER OF 2-3/8". FOR ADDITIONAL AND/OR DIFFERENT SIZE CONDUITS, WIDTH OF TRENCH AND CONDUIT POSITIONS SHALL BE ADJUSTED TO MAINTAIN

PRESCRIBED SPACING.

5" 2"

ELEC COMMS

4"

3"

2" T

YP

EXISTING

SOIL

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DRAWN BY:

DSA APP NO.:

REFERENCE SHEET NUMBER

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REVISION NO.:

REFERENCE SHEET TITLE:

DESCRIPTION:

PAGE NO.:

2305PROJECT TITLE:

RINCON

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL,

CALIFORNIA 95073, SANTA CRUZ COUNTY

SCALE:

0 1 OF 1

PRE-BID ADDENDUM

ELECTRICAL DETAILS

12/04/2022

EG

E502-SK1

V1

ANTENNA WALL MOUNT & NEMA ENCLOSURE ELEVATION DETAIL

1" = 1'-0"

/0

4/

7:

:1

/C /U se rs

/E gi ffo rd

/D oc um en ts /P ro je ct s/

FS

/R in co n/ P

R E

-B

ID

A D

D E

N D

U M

/W or ki ng

D ra w in gs a nd S ke tc he s/

E

2- S

K

- A nt en na

W al l M ou nt

N E

M A

E nc lo su re E le va tio n

D et ai l (

8.

5x un fla tte ne

d) .p df

NOTES:

1. REQUIREMENTS FOR ANTENNA WALL MOUNT EQUIPMENT AND INSTALLATION ARE SHOWN ON DETAIL 4 ON E502.

2. PROVIDE AND INSTALL 12" X 12" X 6" NEMA 4 ENCLOSURE, BACK PANEL, AND 8-SLOT GROUND SPLITTER BAR, HOFFMAN A1212CHFL, A12P12, AND ASG8 OR APPROVED EQUALS.

3. INSTALL 8-SLOT GROUND SPLITTER BAR 4" ABOVE BOTTOM OF ENCLOSURE, CENTERED HORIZONTALLY. CONNECT

#6 GROUNDING CONDUCTORS FROM ELECTRICAL PANEL AND ANTENNA WALL MOUNT TO SPLITTER BAR.

4. PROVIDE AND INSTALL FOUR (4) ZINC-PLATED STEEL CORD-GRIP FITTINGS, RATED FOR WET LOCATIONS, NEMA 4

OR BETTER. SIZE FITTINGS FOR ANTENNA CABLES FOR A CABLE O.D. OF 0.48". FITTINGS FOR #6 GROUNDING CONDUCTOR SHALL BE SIZED BASED ON O.D. OF SUBMITTED AND APPROVED CABLE AND CONTRACTOR'S

INSTALLATION OF MARINE GRADE HEAT SHRINK ON GROUNDING CONDUCTOR AT ENCLOSURE.

NEMA 4 ENCLOSURE

ZINC-PLATED STEEL

CORD-GRIP FITTING,

TYPICAL

L TO R: ANTENNA CABLE

(NIC), 2X #6 AWG B.C.

GROUND, ANTENNA

CABLE (NIC)

SLEEVE SEAL & 2" / 4

CONDUIT SEAL

ANTENNA WALL MOUNT

AND EDUCATION

CENTER

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PROJECT TITLE:

SOQUEL

FIRE STATION

4750 SOQUEL SAN JOSE ROAD, SOQUEL

CALIFORNIA 95073, SANTA CRUZ COUNTY

VE

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1"

JOB NUMBER: 2305

REFERENCE SHEET TITLE:

TECHNI CAL SERV I CES Capi tal Out lay Real Estate Surveying Architecture & Engineering C ons tru ct ion Ma na ge rs

Va ult s

DESCRIPTION:

REVISION NO.:

REFERENCE SHEET NUMBER

V#

PAGE NO.:

DSA APP NO.: 04-119744

SCALE:

PRE-BID ADD.

12/04/2022

EG

ELECTRICAL DETAILS

E505 V1

CEILING MOUNTED SPEAKER AT 1-HR RATED CEILING

NTS

/C /U se rs

/E gi ffo rd

/D oc um en ts /P ro je ct s/

FS

/R in co n/ P

R E

-B

ID

A D

D E

N D

U M

/E

- C ei lin g M ou nt ed S pe ak er a t 1 -h r R at ed

C ei lin g

D et ai l ( x1

- u nf la tte ne

d) .p df

/0 4/

7:

:4

2X8 FRAMING AROUND PERIMETER OF SPEAKER BOX,

ATTACHED TO CEILING FRAMING MEMBERS WITH

SIMPSON A35 EACH SIDE, EXCEPT WITHIN 18" OF

CORRIDOR WALL WHERE FRAMING MEMBER WILL BE

ATTACHED TO HALL 2 WALL TOP PLATE OR BLOCKING

FIRE RATED CEILING ASSEMBLY

CONTINUOUS BEAD OF FIRE BARRIER SEALANT

APPLIED TO BOTTOM EDGE OF GYP. BD. (TYP)

Ø 10-1/8" HOLE FOR SPEAKER ENCLOSURE ATLAS 95-8,

(SPEAKER NOT SHOWN)

ATLAS 95-8 SPEAKER ENCLOSURE

(SPEAKER NOT SHOWN)

(2) LAYERS OF 5/8" TYPE "X"

GYP. BD. BOXED ALL AROUND

SPEAKER ENCLOSURE

CUT 1-1/4" HOLE THROUGH FRAMING

& GYP. BD. FOR 3/4" ENT. FILL OPEN

SPACE AROUND ENT WITH FIRE

BARRIER SEALANT.

TO VOLUME

CONTROL

TO VOLUME

CONTROL

3/4" ENT

3/4" ENT

INSTALLATION NOTES:

1. FURNISH AND INSTALL ATLAS 95-8 SPEAKER ENCLOSURE AT LOCATIONS SHOWN ON VOICE/DATA/PA SYSTEM PLAN, CENTERED BETWEEN CEILING JOISTS.

2. INSTALL MOUNTING RAILS ON GYP. BD. ON OPPOSING SIDES OF SPEAKER ENCLOSURE AND ATTACH TO 2X8 FRAME ON BOTH ENDS OF SPEAKER BOX.

3. CUT 1-1/4" HOLE THROUGH FRAMING AND BOX ASSEMBLY, INSTALL 3/4" ENT, AND ATTACH TO SPEAKER ENCLOSURE UTILIZING THREADED CONNECTOR

AND LOCKNUT IN 3/4" KO. SEAL ANNULAR SPACE AROUND 3/4" ENT WITH FIRE BARRIER SEALANT. SEE SPECIFICATION SECTION 078413 FOR DETAILS AND

REQUIREMENTS FOR FIRE BARRIER SEALANT.

4. PREPARE CEILING SURFACE TO RECEIVE BOX ASSEMBLY AS REQUIRED BY FIRE BARRIER SEALANT MANUFACTURER.

5. APPLY FIRE BARRIER SEALANT TO BOX ASSEMBLY ALONG BOTTOM EDGE OF GYP. BD. APPLY SEALANT PER MANUFACTURER'S INSTRUCTIONS.

6. PLACE BOX ASSEMBLY, CENTERED OVER SPEAKER ENCLOSURE, ON ATTIC SIDE WHILE SEALANT IS TACKY TO ENSURE PROPER ADHESION.

7. INSTALL #8 X 2" TYPE "S" DRYWALL SCREWS THROUGH ENCLOSURE MOUNTING HOLES, GYP. BD., AND MOUNTING RAILS.

#8 X 2-1/2" TYPE "W" DRYWALL SCREWS @ 6"

0.C. MAX INTO SPEAKER BOX FRAMING (TYP),

EXCEPT WHERE WITHIN 18" OF HALL 2 WALL

FIRE RATED CEILING ASSEMBLY

CONTINUOUS BEAD OF FIRE BARRIER SEALANT

APPLIED TO BOTTOM EDGE OF GYP. BD. (TYP)

2X8 FRAMING AROUND PERIMETER OF BOX

1/ 8"

M

IN

#8 X 2" TYPE "S" DRYWALL SCREWS THROUGH

GYP INTO MOUNTING RAIL (TYP OF TWO)

ATTACH MOUNTING RAIL TO 2X8 FRAME,

THROUGH GYP. BD., WITH #8 X 2-1/2"

TYPE "W" DRYWALL SCREWS (TYP)

MOUNTING RAIL, ONE EACH ON

OPPOSING SIDES

LABEL TOP OF BOX "NON-BEARING"

WITH 2"H LETTERS

NON-BEARING