Amendment0003-Attach2-REV-Drawings -W912C322R0003-Bldg1070-20220811.pdf
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- Solicitation number
- W912C322R0003
About this file
This solicitation seeks proposals for the replacement of a chiller system at Building 1070 at Fort Buchanan in Puerto Rico. The requirement includes labor, equipment, materials, insurance, supervision, and incidentals to remove an existing chiller system and install a new one. The NAICS code is 238220 for plumbing, heating, and air conditioning contractors. The small business size standard is $16.5 million. The estimated value is between $1-5 million. Proposals are due by the date specified in SAM.gov. The requirement is set aside entirely for small businesses. Interested parties must monitor SAM.gov for amendments and ensure any amendments are submitted with proposals. Only firms registered in SAM.gov will be considered. Questions can be directed to the points of contact listed.
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DPW ENGINEERING DIVISION
RECOMMENDED APPROVAL
ANIBAL NEGRON
DIRECTOR OF PUBLIC WORKS
LUIS E. TORRES
ENGINEERING DIVISION CHIEF
PROJECT TEAM
PROJECT MANAGER
CIVIL / ARCH. / DESIGN DEVELOPMENT
MECHANICAL DESIGN
ELECTRICAL DESIGN
DRAFTER
REVISED BY
REVISIONS
REV. NO. DATE APPD. BY
SCALE: NTS
E103
18 19
DRAWING #:
PROJECT #:
X
IJO:
DATE:
NEW ELECTRICAL
WORKS
AUG / 2022
FT. BUCHANAN, PUERTO RICO
PATRIOT BLVD.
O. GONZALEZ / C. IRIZARRY
J. ROMAN / O. GONZALEZ
A. MOJICA / C. IRIZARRY
NEW DRY TYPE TRANSFORMER
480/ 120 / 240V
CHILLER
REPLACEMENT
BLDG. # 1070
HIGH SCHOOL
INCOMING
SECTION
NEW GROUND
BUS
TO
SWITCHBOARD NEW GROUND
ROD
DS
3~
DS
3~
NEW GROUND WIRE
#2
NEW 3 # 3 / 0, 1 # 4 GRD
EXISTING 2 " CONDUIT
NEW 3 # 8, 1 # 10 GRD
EXISITNG 3 / 4 " CONDUIT
NEW 3 # 12, 1 # 12 GRD
EXISTING 3 / 4 " CONDUIT
NEW 30 AMPS , THREE PHASE, 600 VOLTS,
NEMA 4X SAFETY SWITCH, NON FUSED
(RE-USE TWO EXISTING
2 - 1 / 2 " CONDUITS)
LEGEND ( FOR THIS SHEET ONLY )
P
FURNISH AND INSTALL A PARALLEL OF 3-4/0, 600 V , RHW AND ONE NEW AWG #2, 600 V, RHW FOR GROUND. RE-USE
EXISTING CONDUITS THAT RUN UNDERGROUND FROM THE MAIN SWITCHBOARD TO THE NEW MCC.
FURNISH AND INSTALL A NEW PANEL TO BE CALLED 'MCC' SIMILAR TO SQUARE D, I LINE, INTERIOR PANELBOARD, HCP, 600 AMPS, WITH ENCLOSURE TYPE NEMA 3R. THIS INCLUDES BREAKERS, SURGE PROTECTION DEVICES, GROUND ROD,DRY TYPE TRANSFORMER, AND WIRES REQUIRED TO LEAVE IT FUNCTIONING AND OPERATING. CABLES SIZES FOR EQUIPMENT CONNECTED AT PANEL MCC VARIES ACCORDING TO THEIR BREAKER SIZE AND LOAD. NEW MCC ENCLOSURE SHALL COVER ALL RELATED CABLES. EXTENSION OF EXISTING CONDUITS ARRIVING THE EXISITNG MCC AREA REQUIRES
RELOCATION/EXTENSION TO ACCESS THE NEW MCC ENCLOSURE.
FURNISH AND INSTALL NEW SURGE PROTECTORS FOR PANEL 'MCC' AND EACH CHILLER CIRCUIT .
FURNISH AND INSTALL NEW PANEL 'M' 120 / 240V , 100 AMPS , NEMA 3R, 24 CKTS, BOLT-ON. THIS INCLUDES BREAKERS AND WIRES RELATED TO THE EQUIPMENT CONNECTED TO THIS PANEL. CABLE SIZES AS INDICATED IN BELOW DIAGRAM.
FOR PANEL M FURNISH AND INSTALL THHN/THWN-2 , STRANDED . 20 AMPS CIRCUITS USE AWG # 12 THHN/THWN-2 , 30 AMPS USE AWG # 10 THHN/THWN-2 , 50 AMPS USE AWG # 6 THHN/THWN-2. FOR CABLE RUN FROM 15KVA TRANSFORMER
TO PANEL M USE # 2 THHN/THWN-2.
FURNISH AND INSTALL NEMA 4X RATED DISCONNECT SWITCHES AND WATER TIGHT 4" x 4" JUNCTION BOXES FOR EACH COOLING TOWER FAN CIRCUIT EQUIPMENT ON EXTERIOR. DISCONNECTS WILL BE LOCATED ON SAME PLACE WERE REMOVED ONES WERE LOCATED. USE AWG # 12 THHN/THWN-2 AND #10 THHN/THWN - 2 FOR THESE CIRCUITS.
FURNISH AND INSTALL NEW 3 / 4 " RGS CONDUITS FOR EACH NEW A/C UNITS AND COOLING TOWERS EXTERIOR CIRCUITS. COOLING TOWER CIRCUITS SHALL BE POWERED FROM PANEL 'MCC' , A/C UNITS SHALL BE POWERED FROM
PANEL M.
LABEL ALL CIRCUITS AND CONDUITS ACCORDINGLY, INCLUDE THE CIRCUIT NUMBER AND PANEL. THIS MUST BE DONE
FOR LOADS AT PANELS MCC AND M.
PUMPS AND VFDs TO BE PURCHASED AND INSTALLED ON MECHANICAL DRAWINGS M-103 AND M-104. LOCATE PUMPS ON
OLD LOCATIONS, SINCE EXISTING UNDERGROUND CONDUITS WILL BE USED. V
ELECTRICAL CONNECTIONS FROM VFD's TO MOTOR LOADS SHALL BE DONE USING LIQUIDTIGHT CONDUITS AND JUNCTION BOX TO FACILITATE CONNECTIONS. ON THE FIVE (5) PUMPS WHERE VFD's DID NOT EXIST CONTRACTOR SHALL
RUN BY THE CEILING NEW 34" RGS CONDUIT TO JCI CONTROL PANEL.
NEW GROUND ROD, 34 IN X 10FT, SHALL BE INSTALLED BEHIND THE WALL WHERE PANEL MCC IS BEING INSTALLED, DRILL
HOLE AND BURY GROUND ROD ON THE EXTERIOR.
FURNISH AND INSTALL NEW CABLE AWG #8 THHN/THWN-2 AND #10 GND FOR NEW A/C UNITS TO BE INSTALLED ON
PANEL M'.
FURNISH AND INSTALL NEW 60AMPS , NEMA4X, 240V DISCONNECT FOR A/C UNITS. TO BE LOCATED BESIDE EQUIPMENT.
NEW A/C UNITS TO BE INSTALLED ON MECHANICAL SHEETS.
FURNISH AND INSTALL NEW ONE POLE TOGGLE SWITCH 120V, 3
4" EMT CONDUIT AND AWG#12 THNN/THWN-2 WIRE FOR
CONTROL THE EXISTING EXHAUST FAN. INTERCEPT EXISTING CIRCUIT COMING FROM PANEL "M". LOCATE SWITCH AS
INDICATED ON SHEET E-104.
SEE SHEET E-104 FOR ELECTRICAL PLAN VIEW.
NEW WORK NOTES:
NOTE: NEW PANEL 'M' 120 / 240 V, 100 AMPS, SINGLE PHASE 24 CKTS, BOLT-ON
TYPE. RECONNECT ALL EXISTING LOADS FROM DEMOLISHED PANEL M, USING
NEW NEW BREAKERS AND WIRE. ALSO INCLUDE THE FOLLOWING NEW LOADS
WITH THEIR NEW BOLT-ON TYPE BREAKERS:
13 & 15 - NEW A/C UNIT 1, 14 & 16 - NEW A/C UNIT 2
17 & 19 - A/C INTERIOR UNIT 1 , 18 & 20 - A/C INTERIOR UNIT 2
21 - REFRIGERANT LEAK MONITOR, 22 - 24: SPARE SPACE
250 AMPS 250 AMPS
40 AMPS
20 AMPS
20 AMPS
20 AMPS
40 AMPS
20 AMPS
20 AMPS
20 AMPS
CHILLED WATER PUMP 1
VFD 20 H.P CH-1
CHILLER
CH-1
CHILLER
CH-2
CHILLED WATER PUMP 2
VFD 20 H.P CH-2
COOLING TOWER
FANS D.S.1 - 10HP
CONDENSING PUMP 1
VFD 10 H.P CH-1
CHILLED WATER PUMP 3
VFD 7.5 H.P CH-1
COOLING TOWER
FANS D.S.2 - 10HP
CONDENSING PUMP 2
VFD 10 H.P CH-2
CHILLED WATER PUMP 4
VFD 7.5 H.P. CH-2
30 AMPS
30 AMPS
20 AMPS
20 AMPS
20 AMPS
20 AMPS
20 AMPS
NEW 15KVA
TRANSFORMER
DRY TYPE
480 VTO 120 / 240 V
SINGLE PHASE
1 2 & 4
50 AMPS
10 & 12
13 & 15 14 & 16
50 AMPS
20 AMPS
20 AMPS
20 AMPS
40 AMPS 40 AMPS
20 AMPS
CONDENSING PUMP 3
VFD 10 H.P CH-1 OR 2
REDUNDANCY
40 AMPS
PA
R
AL
LE
L
- 4
#2
F O
R G
R O
U N
D
N
EW
C O
N D
U
IT
S
TO
B E
IN
ST
AL
LE
D A
BO
VE
G R
O U
N D
40 AMPS
15 KVA TRANSFORMER &
PANEL M.
17 & 19 18 & 20
20 AMPS
40 AMPS
6CHILLER
#1 (M1)
CHILLER
#2 (M2)
20 AMPS
SPARE
30 AMPS
SPARE
JB JB
EXISTING
C.T.
C.T.#1 C.T.#2
P7
10HP
VFD
JB JB
JB JB JB JB JB
VFD
VFD VFD VFD VFD VFD
MAIN BREAKER
"MCC"
450 AMPS
"MCC"
SECTION
"MCC"
SECTION
1010101010
SPD CHILLER 1 SPD CHILLER 2
SPD MCC
NEW PANEL 'MCC': 480V
THREE PHASE 600 V, 600
AMPS, 25KAIC,
2 SECTIONS
SPARE SPACE
SPARE SPACE
20 AMPS
20 AMPS
20 AMPS
20 AMPS
SPARE SPACE
DS
JB
(EXISTING) (EXISTING)
NEW 100 AMPS PANEL M 120 / 240V
P6
10HP
P3
7.5HP
P1
20HP
P2
20HP P4
7.5HP
P5
10HP
JB JB
NEW 3 # 12, 1 # 12 GRD
AND NEW 3 / 4 " RGS
CONDUIT 7
NEW 3 # 12, 1#12 GND
NEW 3 / 4 " LIQUID
TIGHT CONDUIT
NEW 3 # 12, 1#12 GND
EXISTING 3 / 4 "
CONDUIT
NEW 3 # 8, 1 # 10 GRD
NEW 3 / 4 " LIQUID TIGHT
CONDUIT
APPROVED
01 8 AUG 22
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