Addendum Two - New Generator for Millington Jr - Sr HS - 11-3-26.pdf
PDF 7 MB Posted
- Attached to
- Backup Generators for Kitchens
- Solicitation number
- RFP MILL 270000000104 3
- Issued by
- Michigan
About this file
This is Addendum No. 2 to a construction project for Millington Jr-Sr High School in Millington, Michigan, prepared by Forest Trail Design, PLC and KTS Engineering Group. The addendum addresses the installation of a new 200kW/225kVA natural gas generator system with a weather-proof enclosure and associated electrical infrastructure. The project includes an automatic transfer switch (ATS), generator control panel, battery charger, coolant jacket heater (1.5kW minimum, 208V-1PH), and oil heater (1.5kW minimum, 208V-1PH). The generator will be located south of the transformer on a concrete pad with a 10-inch reinforced beam foundation. Electrical work encompasses feeder connections from the existing main distribution panel (1600A MCB at 480Y/277V) and low voltage distribution panel (600A MCB at 208Y/120V) to the new generator system, with conduit routing and underground wiring as specified in detail sheets. The project specifications indicate total estimated demand of 538A and total connected load of 155,779 VA across multiple panelboards and equipment throughout the facility, including kitchen equipment, HVAC systems, welding units, and auxiliary systems.
The concrete pad must meet 3,000 PSI compressive strength specifications and be placed on one foot of packed washed gravel, with tolerances of ±1/2 inch for overall dimensions and pad opening. The electrical contractor must coordinate with manufacturer shop drawings for exact dimensions and verify specific wiring requirements for the heater units. The project notes indicate that welding equipment will automatically de-energize during power outages due to internal safety mechanisms. The generator and automatic transfer switch are to be supplied by the owner and installed by the contractor. The addendum was issued on November 3, 2026, following the initial bid date of October 26, 2026, and includes comprehensive one-line diagrams, electrical power plans, enlarged electrical plans, and electrical details across multiple sheets (E1.1, E4.1, E5.1, and E7.1) prepared in September 2026 for project number 26-0333.
View the file
Other files
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
RECEIVING
BOILER ROOM
MUSIC
STORAGE
STORAGE
STAFF
KITCHEN
DISHWASHING
SERVING
COOLER
FREEZER
222A
STORAGE
CAFETERIA
GYM
CORRIDOR
FRONT
T
T
INTAKE
SIDE
EX RPO
E4.1
NATURAL
GAS GENERATOR
& WEATHER PROOF
ENCLOSURE
ADMIN STAFF
OFFICE
OFFICE
OFFICE
EX MDP
EX LDP
5' - 0"
ATS-TLDP
CHECKED BY
PROJECT DATE
SHEET NUMBER
N O
R
E V
IS
IO
N D
A T
E S
H E
E T
T
IT
L E
P R
O J E
C T
T
IT
L E ar ch it ec tu re w it h pe op le i n m in d fo re st tr ai l de si gn , P
LC
B E
L L
A
IR
E
M
IC
H
IG
A N
P H
O N
E
(9
)8
-4
F O
R E
S T
T R
A
IL
D E
S
IG
N
P L
C P
.O
B O
X
PROJECT NUMBER
CONSULTING ENGINEER
491 E. WRIGHT AVE.
SHEPHERD MI, 48883
989-567-1100
KTSENGINEERINGGROUP.COM
E1.1
EL
EC
TR
IC
A L
PO
W
ER
P
LA
N
M
IL
LI
N
G
TO
N
JR
/S R
H
IG
H S
C H
O O
L
M
IL
LI
N
G
TO
N , M
IC
H
IG
A
N
KTS
SEPT. 2026
KTS PROJECT NO. 26-0333
2026008A
N
EW
G
EN
ER
A
TO
R
S Y
ST
EM
F O
R
1/16" = 1'-0"
ELECTRICAL POWER PLAN
B
ID
S
/2
A D
D
EN
D U
M N
O
/3
/2
RECEIVING
BOILER ROOM
MUSIC
STORAGE
STORAGE
STAFF
KITCHEN
DISHWASHING
SERVING
COOLER
FREEZER
222A
STORAGE
CAFETERIA
CORRIDOR
EX TLDP
EX LDP
EX
M
D P
EX TRANF
EQUIPMENT
PAD
FRONT
E X J
EX
H
EX
K
EX
K
ATS-TLDP
GA
T
T
EX RPO
SEE DETAIL 2/E5.1 FOR
ADDITIONAL UNDERGROUND
CONDUIT & WIRING
UP TO PRIMARY
SIDE OF EX TLDP
Room
P
P
P
STORAGE
LIB
OFFICE
GIRLS
BOYS
STORAGE
OFFICE
LOCKERS
STAGE
OFFICE
ADMIN STAFF
TOILET
RECORDS
CORRIDOR
ENCLOSURE
6' - 0"
CHECKED BY
PROJECT DATE
SHEET NUMBER
N O
R
E V
IS
IO
N D
A T
E S
H E
E T
T
IT
L E
P R
O J E
C T
T
IT
L E ar ch it ec tu re w it h pe op le i n m in d fo re st tr ai l de si gn , P
LC
B E
L L
A
IR
E
M
IC
H
IG
A N
P H
O N
E
(9
)8
-4
F O
R E
S T
T R
A
IL
D E
S
IG
N
P L
C P
.O
B O
X
PROJECT NUMBER
CONSULTING ENGINEER
491 E. WRIGHT AVE.
SHEPHERD MI, 48883
989-567-1100
KTSENGINEERINGGROUP.COM
E4.1
EN
LA
R G
ED
E
LE
C
TR
IC
A L
PL
A
N S
M
IL
LI
N
G
TO
N
JR
/S R
H
IG
H S
C H
O O
L
M
IL
LI
N
G
TO
N , M
IC
H
IG
A
N
KTS
SEPT. 2026
KTS PROJECT NO. 26-0333
2026008A
N
EW
G
EN
ER
A
TO
R
S Y
ST
EM
F O
R
1/8" = 1'-0"
ENLARGED ELECTRICAL PLAN
KEY NOTES:
1 ROUTE CONDUIT EXPOSED. SEE ONE LINE DIAGRAMS ON SHEET E7.1 (TYPICAL).
B
ID
S
/2
A D
D
EN
D U
M N
O
/3
FEEDER REFER TO ONE-LINE DIAGRAM FOR SIZE
3 POLE OUTPUT
BREAKER SERVING
EX T-LDP
BATTERY CHARGER 120V
COOLANT JACKET HEATER, 1.5KW MINIMUM.
208V-1PH. VERIFY EXACT SIZE AND WIRING
REQUIREMENTS WITH MANUFACTURER
OIL HEATER, 1.5KW MINIMUM. 208V-1PH.
VERIFY EXACT SIZE AND WIRING
REQUIREMENTS WITH MANUFACTURER
1''C WITH 4#12 AND 2#16 SHIELDED TWISTED PAIR CABLE
TO ANNUNCIATOR
1''C WITH 4#12 AND 2#16 SHIELDED TWISTED PAIR CABLE
TO ATS
1''C WITH 2#8 &1#8G TO 20A/2P CIRCUIT BREAKER IN
INDICATED PANELBOARD
1''C WITH 2#10 &1#10G TO 20A/1P CIRCUIT BREAKER IN
INDICATED PANELBOARD
1''C WITH 2#10 &1#10G TO 20A/1P CIRCUIT BREAKER IN
INDICATED PANELBOARD
GENERATOR CONTROL
PANEL
GFCI
GENERATOR ENCLOSURE
EMERGENCY STOP LOCATED
ON ENCLOSURE EXTERIOR
M
IN
6"
1"
FINISHED GRADE
6'' MIN
(4) 10'-0'' GRD. ROD
AT EACH CORNER
EXOTHERMIC WELD
CONNECTION (TYP.)
NOTES:
1. ELECTRICAL CONTRACTOR SHALL COORDINATE WITH MANUFACTURER'S SHOP DRAWINGS FOR EXACT DIMENSIONS.
2. CONCRETE TO BE PLACED ON ONE FOOT OF PACKED WASHED GRAVEL OR PEA STONE.
3. PROPOSED 6" CONCRETE SLAB W/ #5 BARS @ 12" CENTERS EACH WAY CENTERED WITHIN CONCRETE SLAB.
4. CLASS OF CONCRETE=3,000 PSI COMPRESSIVE STRENGTH AT 28 DAYS.
5. PROPOSED 10" BEAM W/ #2 STIRRUPS @ 12" CENTERS ALL AROUND. TWO (2) #5 BARS TOP AND BOTTOM ALL AROUND. 3" CLEARANCE.
6. TOLERANCES OVERALL DIMENSIONS AND PAD OPENING DIMENSIONS = 1/2"
PROPOSED 10" BEAM W/ #2 STIRRUPS @ 12"
CENTERS ALL AROUND. TWO (2) #5 BARS TOP
AND BOTTOM ALL AROUND. 3" CLEARANCE.
CHECKED BY
PROJECT DATE
SHEET NUMBER
N O
R
E V
IS
IO
N D
A T
E S
H E
E T
T
IT
L E
P R
O J E
C T
T
IT
L E ar ch it ec tu re w it h pe op le i n m in d fo re st tr ai l de si gn , P
LC
B E
L L
A
IR
E
M
IC
H
IG
A N
P H
O N
E
(9
)8
-4
F O
R E
S T
T R
A
IL
D E
S
IG
N
P L
C P
.O
B O
X
PROJECT NUMBER
CONSULTING ENGINEER
491 E. WRIGHT AVE.
SHEPHERD MI, 48883
989-567-1100
KTSENGINEERINGGROUP.COM
E5.1
EL
EC
TR
IC
A L
D
ET
A
IL
S
M
IL
LI
N
G
TO
N
JR
/S R
H
IG
H S
C H
O O
L
M
IL
LI
N
G
TO
N , M
IC
H
IG
A
N
KTS
SEPT. 2026
KTS PROJECT NO. 26-0333
2026008A
N
EW
G
EN
ER
A
TO
R
S Y
ST
EM
F O
R
NOT TO SCALEE5.1
2 GENERATOR WIRING CONNECTION DETAIL
NOT TO SCALEE5.1
3 PROPOSED LOCATION
LOCATE GENERATOR
SOUTH OF TRANSFORMER
Notes:
Total Est. Demand: 538 A
Total Conn.: 432 A
Existing Load 152359 VA 125.00% 190449 VA Total Est. Demand: 193869 VA
Equipment 3000 VA 100.00% 3000 VA Total Conn. Load: 155779 VA
Receptacle 420 VA 100.00% 420 VA
Load Classification Connected Load Demand Factor Estimated Demand Panel Totals
Legend:
Total Amps: 432 A
Total Conn. Load: 155779 VA
17 SPACE 3 -- -- --
16 ** Receptacle GENERATOR BATTERY CHARGER 1 400 A 20 A 240 VA
15 ** Receptacle GENERATOR 1 125 A 20 A 180 VA
14 * Equipment GENERATOR COOLANT HTR 2 125 A 20 A 1500 VA
13 * Equipment GENERATOR JACKET HTR 2 125 A 20 A 1500 VA
12 EX Equipment WELDING 3 400 A 225 A 0 VA
11 EX H 3 400 A 20 A 32310 VA
10 EX J 3 400 A 20 A 11488 VA
9 EX K1 3 400 A 20 A 32310 VA
8 EX SPACE 3 -- -- --
7 EX RPO 3 400 A 20 A 43080 VA
6 EX SPACE 3 -- -- --
5 EX Equipment COMPRESSOR 3 400 A 20 A 0 VA
4 EX SPACE 3 -- -- --
3 EX Equipment BOILER 3 125 A 20 A 8616 VA
2 EX G 3 400 A 80 A 11488 VA
1 EX Motor WELL PUMP 3 125 A 70 A 13067 VA
CKT Circuit Description # of Poles Frame Size Trip Rating Load Remarks
* PROVIDE 20A-2P GFCI CIRCUIT BREAKER
** PROVIDE 20A-1P GFCI CIRCUIT BREAKER
Notes:
Enclosure: NEMA 1 MCB Rating: 600 A
Mounting: WALL Wires: 4 Mains Rating: 600 A
Supply From: EX TLDP Phases: 3 Mains Type: MCB
Location: BOILER ROOM 219 Volts: 208Y/120 Wye A.I.C. Rating: EXISTING
Switchboard: EX LDP
2 3 -- --
1 3 400 A 155779 VA ATS-TLDP
CKT POLES FUSE/CB LOAD DESCRIPTION/NAMEPLATE NOTES
GENERATOR
NOT TO SCALEE5.1
1 GENERATOR PAD DETAIL
B
ID
S
/2
A D
D
EN
D U
M N
O
/3
N
G
EX MDP
1600A MCB, 480Y/277V 3PH 4W
BOILER ROOM 219 #4/0 AWG
1600A-3P
N
G
EX LPD
600A MCB, 208Y/120V 3PH 4W
BOILER ROOM 219
600A-3P
EX T-LPD
225kVA
480V-
208Y/120
225A-3P 70A-3P 40A-3P 100A-3P
SPACE
3P 400A-3P 300A-3P
EX PNL BB EX PNL
STAGE
EX PNL PP EX PNL
CONCESSION
EX KITCHEN
BOOSTER
PUMP
EX T-MDP
UTILITY
PRI-
277/480
70A-3P 80A-3P 60A-3P
SPACE
4P
SPACE
12P 60A-3P 150A-3P 225A-3P
EX PNL CC EX PNL AA
225A-3P
EX PNL EECP
EX KITCHEN
BOOSTER
HEATER
30A-2P 200A-3P
SPACE
3P 150A-3P 80A-3P 125A-3P 225A-3P 20A-3P
SPACE
9P
EX PNL G EX PNL
BOILER
EX PNL RPO
(KITCHEN)
EX PNL K
(KITCHEN)
EX PNL J EX PNL H
EX WELL
PUMP
EX
COMPRESSOR
SPACE
3P
EX WELDING
UNIT
EX WELDING
UNIT
EX WELDING
UNIT
REMOVE FEEDER TO
TRANSFORMER. PREP
FOR CONNECTIONS TO
GENERATOR.
N
G
EX MDP
1600A MCB, 480Y/277V 3PH 4W
BOILER ROOM 219 #4/0 AWG
1600A-3P
N
G
EX LPD
600A MCB, 208Y/120V 3PH 4W
BOILER ROOM 219
600A-3P
EX T-LPD
225kVA
480V-
208Y/120
225A-3P 70A-3P 40A-3P 100A-3P
SPACE
3P 400A-3P 300A-3P
EX PNL BB EX PNL
STAGE
EX PNL PP EX PNL
CONCESSION
EX KITCHEN
BOOSTER
PUMP
EX T-MDP
UTILITY
PRI-
277/480
70A-3P 80A-3P 60A-3P
SPACE
4P
SPACE
12P 60A-3P 150A-3P 225A-3P
EX PNL CC EX PNL AA
225A-3P
EX PNL EECP
EX KITCHEN
BOOSTER
HEATER
NATURAL GAS GENERATOR
480V 3PH 4W
200kW/225kVA
0A
-3
P NE
L
ATS-LPD
400A-3P
NEMA 3R
30A-2P 200A-3P
SPACE
3P 150A-3P 80A-3P 125A-3P 225A-3P 20A-3P
SPACE
3P
EX PNL G EX PNL
BOILER
EX PNL RPO
(KITCHEN)
EX PNL K
(KITCHEN)
EX PNL J EX PNL H
EX WELL
PUMP
EX
COMPRESSOR
SPACE
3P
EX WELDING
UNIT
400A, 3W
400A, 3W
300A, 3W
EX WELDING
EQUIPMENT
NO-VOLT RELEASE
(NVR) SWITCHES
EX WELDING
UNIT
EX WELDING
UNIT
20A-2P 20A-2P 20A-1P
JACKET HTR COOLANT HTR BATTERY
CHARGER
20A-1P
GENERATOR
RECEPTACLE
30A, 3W
20A, 3W
GENERATOR AND AUTOMATIC
TRANSFER SWITCH SUPPLIED BY OWNER
AND INSTALLED BY CONTRACTOR
CHECKED BY
PROJECT DATE
SHEET NUMBER
N O
R
E V
IS
IO
N D
A T
E S
H E
E T
T
IT
L E
P R
O J E
C T
T
IT
L E ar ch it ec tu re w it h pe op le i n m in d fo re st tr ai l de si gn , P
LC
B E
L L
A
IR
E
M
IC
H
IG
A N
P H
O N
E
(9
)8
-4
F O
R E
S T
T R
A
IL
D E
S
IG
N
P L
C P
.O
B O
X
PROJECT NUMBER
CONSULTING ENGINEER
491 E. WRIGHT AVE.
SHEPHERD MI, 48883
989-567-1100
KTSENGINEERINGGROUP.COM
E7.1
O N
E
LI
N E
D
IA
G R
A M
M
IL
LI
N
G
TO
N
JR
/S R
H
IG
H S
C H
O O
L
M
IL
LI
N
G
TO
N , M
IC
H
IG
A
N
KTS
SEPT. 2026
KTS PROJECT NO. 26-0333
2026008A
N
EW
G
EN
ER
A
TO
R
S Y
ST
EM
F O
R
FEEDER SCHEDULE (COPPER)
TAG CONDUCTORS EQUIPMENT GROUND CONDUIT
20A, 3W 3#12 #12 ½"
30A, 3W 3#10 #10 ½"
300A, 3W 3#350 #4 3"
400A, 3W 3#500 #2 4"
FEEDER SCHEDULE (ALUMINUM)
TAG CONDUCTORS EQUIPMENT GROUND CONDUIT
300A, 3W 3#500 #2 3"
400A, 3W 2 X (3 #250) 2 X #1 (2) 2½"
ELECTRICAL LOAD SUMMARY
DESCRIPTION CONNECTED (VA)
CONNECTED
(AMPS) DEMAND (VA) DEMAND (AMPS)
ATS-TLDP 155779 VA 187 A 193869 VA 233 A
EX G 11488 VA 32 A 14360 VA 40 A
EX H 32310 VA 90 A 40388 VA 112 A
EX J 11488 VA 32 A 14360 VA 40 A
EX K1 32310 VA 90 A 40388 VA 112 A
EX K2 14360 VA 40 A 17950 VA 50 A
EX LDP 155779 VA 432 A 193869 VA 538 A
EX RPO 43080 VA 120 A 53850 VA 149 A
EX TLDP 155779 VA 432 A 193869 VA 538 A
GEN 155779 VA 187 A 193869 VA 233 A
KEY NOTES:
1 WELDING EQUIPMENT AUTOMATICALLY SHUTS OFF, DE-ENERGIZES, OR STAYS OFF DURING A
POWER OUTAGE DUE TO INTERNAL SAFETY MECHANISMS.
NOT TO SCALEE7.1
1 ONE LINE DIAGRAM DEMOLITION
NOT TO SCALEE7.1
2 ONE LINE DIAGRAM
B
ID
S
/2
A D
D
EN
D U
M N
O
/3
| HS Generator Addendum Two |
| New Generator Systems for - Millington Community Schools - Pre-bid Meeting Sign-in Sheet |
| 26-0333 Millington JR-SR - Addendum No 2 (1) |
| Sheets |
| E1.1 - ELECTRICAL POWER PLAN |
| E4.1 - ENLARGED ELECTRICAL PLANS |
| E5.1 - ELECTRICAL DETAILS |
| E7.1 - ONE LINE DIAGRAM |
File details come from the government source that posted it. Updated .