B08_Solicitation_-_Att_3_-_Specfications_-_Addendum.pdf

March 11th 2026r Addendum No. 1 - 1 009258.012

DATE: March 11th, 2026

FROM: The Schemmer Associates

1044 North 115th Street, Suite 300 Omaha, Nebraska 68154 Phone: (402) 493-4800

TO: Prospective Bidders and Plan Holders

RE: Addendum No. 1 to the Bidding Documents for:

NPS Gateway National Park Maintenance Building Schemmer Project No. 009258.012

This addendum is issued by the Architect to the Contractor. This Addendum shall be made a part of the Contract Documents. Acknowledge receipt of this Addendum shall be provided on the Bid Form. Failure to do so may subject Bidder to disqualification.

This addendum consists of two (2) pages of written addendum items and twelve (12) pages of supplemental drawings.

THE SCHEMMER ASSOCIATES INC.

March 11th 2026r Addendum No. 1 - 2 009258.012

DRAWINGS

MECHANICAL

Item No. DM-1, Sheet M001

Changed view title to include the Contract Line Item Number (CLIN) associated with the work depicted in the view.

Modified keynotes, added view showing VAV-11 scope, removed tags from equipment being removed.

Item No. DM-2, Sheet M002

Changed view title to include the Contract Line Item Number (CLIN) associated with the work depicted in the view.

Modified keynotes, modified demo to existing tags, removed tags from equipment being removed.

Item No. DM-3, Sheet M101

Changed view title to include the Contract Line Item Number (CLIN) associated with the work depicted in the view.

Modified keynotes, added view showing VAV-11 scope, Item No. DM-4, Sheet M102

Changed view title to include the Contract Line Item Number (CLIN) associated with the work depicted in the view.

Modified keynotes and new to existing symbols.

Item No. DM-5, Sheet M401

Added detail for gas flue through roof.

Item No. DM-6, Sheet M501

Revised notes for gas-fired hot water boiler and pump schedules. Corrected associated AHU designation in Air Terminal Unit Schedule.

ELECTRICAL

Item No. DE-1, Sheet E 01 Updated and added referenced notes.

Item No. DE-2, Sheet E001 Changed view title to include the Contract Line Item Number (CLIN) associated with the work depicted in the view.

Item No. DE-3, Sheet E002 Changed view titles to include the CLIN associated with the work depicted in the views.

Item No. DE-4, Sheet E201 Changed view titles to include the CLIN associated with the work depicted in the views.

Updated and added referenced notes.

Item No. DE-5, Sheet E201 Added boiler shut-off emergency switches.

Item No. DE-6, Sheet E601 Updated cooling tower starters to VFD/disconnects, added notes VFD/disconnects to be provided by Mech, And to provide non-fused disconnect if VFD’s were not installed within sight of cooling tower.

Item No. DE-5, Sheet E701 Added circuit to panel “PP-1” for contactor control power.

END OF ADDENDUM NO. 1

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MEN

KITCHEN

BREAKROOM

CORRIDOR

SUPPLIES

TRAINING

ROOM

OPEN OFFICE

OFFICE

WORK ROOM

TOOL ROOM

SUPPLIES

SHOP AREA

TRUCK BAYS

WAREHOUSE

RECEIVING

ENTRY

CORRIDOR

CORRIDOR

STAIR

SUPPLIES

DATA

JANITOR

WOMENS

LOCKER

MENS LOCKER

WOMEN

1 1

HWS

HWRHWR

HWS

1 1

MECH ROOM

ELEC ROOM

ELEVATOR

EQUIPMENT

STAIR

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \a p o s p is il\

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09258.012

M001

DEMOLITION FLOOR PLAN -

MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M001 DEMOLITION FLOOR PLAN - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. DEMO NOTES ( ):X

1 REMOVE EXISTING VAV BOX AND ASSOCIATED PIPING SPECIALTIES. PROTECT

CONNECTED DUCTWORK FOR RECONNECTION TO NEW VAV BOX. SEE M101 FOR

ADDITIONAL INFORMATION. REMOVE ASSOCIATED THERMOSTAT. PROVIDE BLANK OFF

PLATE OVER EXISTING THERMOSTAT OPENING IF REQUIRED FOR NEW THERMOSTAT.

2 CONTRACTOR TO FIELD VERIFY VAV-11 THERMOSTAT LOCATION.

SCALE: 1/8" = 1'-0"

FIRST FLOOR PLAN - DEMO HVAC - CLIN 3

DATE INITIAL

03/11/2026

SCALE: 1/8" = 1'-0"

SUB-GRADE PLAN - DEMO HVAC - CLIN 3

3/11/26

MECH ROOM

ELEC ROOM

ELEVATOR

EQUIPMENT

STAIR

AHU-1

UH-4

P-55

G

1 1

METER

MECHANICAL

151A

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

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CHECKED

PREPARED

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09258.012

M002

DEMOLITION FLOOR PLAN -

MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M002 DEMOLITION FLOOR PLAN - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. DEMO NOTES ( ):X

1 REMOVE EXISTING COOLING TOWER. ASSOCIATED PIPING AND BY-PASS SYSTEM IS TO BE

REUSED. CONTRACTOR TO DOCUMENT PIPING LAYOUT PRIOR TO REMOVAL OF COOLING

TOWER. CONTRACTOR TO BE RESPONSIBLE FOR MODIFICATIONS TO EXISTING STEEL

STRUCTURE FOR NEW COOLING TOWER.

2 REMOVE EXISTING PUMPS AND ASSOCIATED ACCESSORIES.

3 EXISTING WATER METER CONNECTED TO CONDENSER DRAIN LINE TO BE REUSED FOR

WITH NEW PUMPS. TEMPORARILY DISCONNECT DURING CONSTRUCTION.

4 REMOVE BOILER AND ASSOCIATED FLUE, CONDENSATE DRAIN LINE, AND ASSOCIATED

ACCESSORIES. REMOVE GAS PIPING BACK TO MAIN AND CAP. REMOVE GAS FLUE BACK

TO VERTICAL STACK. VERTICAL STACK TO BE REUSED.

5 EXISTING EQUIPMENT TO REMAIN.

6 REMOVE EXISTING AIR/DIRT SEPARATOR AND PREPARE FOR INSTALLATION OF NEW UNIT.

7 REMOVE EXISTING EXPANSION TANK AND PREPARE FOR INSTALLATION OF NEW UNIT.

8 REMOVE COMMON PIPE SECTION OF EXISTING IN-FLOOR RADIANT HEAT SYSTEM.

9 REMOVE EXISTING PUMP AND PREPARE FOR INSTALLATION OF NEW UNIT.

10 REMOVE FLUE UP TO ROOF. EXISTING PENETRATIONS ARE TO BE REUSED FOR NEW

BOILER EXHAUST FLUE. COORDINATE ASSOCIATED WORK WITH OWNER.

11 REMOVE EXISTING PUMP AND ALL ASSOCIATED ACCESSORIES.

DATE INITIAL

03/11/2026

SCALE: 1/4" = 1'-0"

SUB-GRADE PLAN - DEMO HVAC - CLIN 2

SCALE: 1/4" = 1'-0"

FIRST FLOOR PLAN - DEMO HVAC - CLIN 1

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MEN

KITCHEN

BREAKROOM

CORRIDOR

SUPPLIES

TRAINING

ROOM

OPEN OFFICE

OFFICE

WORK ROOM

TOOL ROOM

SUPPLIES

SHOP AREA

TRUCK BAYS

WAREHOUSE

RECEIVING

ENTRY

CORRIDOR

CORRIDOR

STAIR

SUPPLIES

DATA

JANITOR

WOMENS

LOCKER

MENS LOCKER

WOMEN

VAV-2

VAV-4

VAV-3

VAV-5

VAV-10

VAV-6

VAV-8

VAV-7

VAV-9

VAV-1

HWR

HWS

HWR

HWS

MECH ROOM

ELEC ROOM

ELEVATOR

EQUIPMENT

STAIR

VAV-11

WAREHOUSE

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \a p o s p is il\

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Checker

02/03/2026

09258.012

M101

FLOOR PLAN - MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M101 FLOOR PLAN - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

SCALE: 1/8" = 1'-0"

FIRST FLOOR PLAN - HVAC - CLIN 3

DATE INITIAL

03/11/2026

REF. NOTES ( ):X

1 REPLACE VAV BOX AS SHOWN. PROVIDE NEW PIPING SPECIALTIES AND CONNECT TO

EXISTING PIPING AND DUCTWORK. PIPING CONNECTIONS FOR EVERY VAV BOX IS TO BE

3/4". INSTALL NEW THERMOSTAT IN PREVIOUS THERMOSTAT LOCATION. PROVIDE BLANK

OFF PLATE OVER EXISTING THERMOSTAT OPENING IF REQUIRED FOR NEW THERMOSTAT.

2 CONTRACTOR TO FIELD VERIFY VAV-11 THERMOSTAT LOCATION.

SCALE: 1/8" = 1'-0"

SUB-GRADE PLAN - HVAC - CLIN 3

MECHANICAL

151A

METER

CT-1

CP-3

CP-2

CP-1

MECH ROOM

ELEC ROOM

ELEVATOR

EQUIPMENT

STAIR

AHU-1

UH-4

HX-1

P-1

P-2

P-6

P-5

G

ET-2

AS-2

AS-1

ET-1

B-2

B-1

1 1/4" HWR

1 1/4" HWS

1 1/4" HWR

1 1/4" HWS

3" HWS

1" G

1" G

1 1/2" G

3" HWS

3" HWR

3" HWS

3" HWR

6 7

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \a p o s p is il\

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02/03/2026

09258.012

M102

FLOOR PLAN - MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M102 FLOOR PLAN - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. NOTES ( ):X

1 INSTALL NEW COOLING TOWER IN PREVIOUS UNITS LOCATION. EXISTING PIPING TO BE

REUSED. CONTRACTOR TO MODIFY PIPING AS REQUIRED FOR NEW EQUIPMENT

CONNECTIONS. CONTRACTOR TO DOCUMENT ANY PIPING LAYOUTS PRIOR TO REMOVAL

OF COOLING TOWER. COOLING TOWER BYPASS LOOP TO BE USED FOR NEW COOLING

TOWER. CONTRACTOR TO BE RESPONSIBLE FOR MODIFICATIONS TO EXISTING STEEL

STRUCTURE FOR NEW COOLING TOWER.

2 INSTALL NEW PUMPS ON EXISTING HOUSEKEEPING PAD.

3 REINSTALL CONDENSER WATER METER AS PREVIOUSLY INSTALLED.

4 INSTALL EQUIPMENT ON EXISTING HOUSEKEEPING PAD.

5 SIZE AND INSTALL EXHAUST FLUE PIPING PER MANUFACTURER REQUIREMENTS.

MATERIAL TO BE AL 29-4C OR 316L STAINLESS STEEL LISTED AND LABELED TO UL-1738

/C-UL S636 FOR USE WITH CATEGORY II/IV APPLIANCES. ROUTE FLUE UP TO ROOF

THROUGH EXISTING OPENING. ALL PENETRATIONS SHALL BE MADE WATER TIGHT. ANY

ROOF FLASHING REQUIRED SHALL BE DONE CLEAN AND NEAT AND SHALL NOT VOID

ROOF WARRANTY. PROVIDE MANUFACTURER APPROVED FLUE TERMINATION ON ROOF.

6 ROUTE FULL SIZE CONDENSATE FROM BOILER TO EXISTING FLOOR DRAIN. PROVIDE

CONDENSATE NEUTRALIZER FOR EACH BOILER.

7 CONTRACTOR TO VERIFY GAS PRESSURE AND NATURAL GAS PIPE SIZE WITH MOST

RECENT IFGC PRIOR TO INSTALLATION. PROVIDE PRESSURE REGULATOR AT EACH

BOILER.

DATE INITIAL

03/11/2026

SCALE: 1/4" = 1'-0"

FIRST FLOOR PLAN - HVAC - CLIN 1

SCALE: 1/4" = 1'-0"

SUB-GRADE PLAN - HVAC - CLIN 2

CONCRETE OR MASONRY

PARTITION.

GROUT, SEE

SPECIFICATIONS.

1/4" CLEAR AROUND PIPE

OR INSULATION.

CAULKING, SEE

SPECIFICATIONS.

SLEEVE, SEE

SPECIFICATIONS.

NOTE:

1. CAULK FULL PERIMETER OF PIPE AT BOTH INSIDE &

OUTSIDE OF WALL.

1/4" CLEAR AROUND PIPE

OR INSULATION

RISER CLAMP

CONCRETE

FLOOR

CAULKING, SEE

SPECIFICATIONS.

NOTE:

1. CAULK FULL PERIMETER OF PIPE AT BOTH TOP AND BOTTOM

OF FLOOR.

DETAIL OF SLEEVE FOR PIPING PENETRATION OF FLOORDETAIL OF SLEEVE FOR PIPING PENETRATION OF VERTICAL

PARTITIONS

SLEEVE, SEE

SPECIFICATIONS.

SLEEVE HEIGHT SHALL BE

2" HIGH IN WET

LOCATIONS, AT FLOOR

LEVEL IN ALL OTHER

LOCATIONS

RISER CLAMP

LEG

INSULATION

THREADED ROD

INSULATION

THREADED ROD

HANGER, INSULATION ON PIPE

CONTINUOUS THROUGH HANGER

WITHOUT SWALLOWING

PIPE, 1"Ø MAX

BAND

THREADED ROD

HANGER

INSULATION

PIPE

SHIELD TO COVER 180° OF

PIPE, SEE CHART FOR

LENGTH

SEE CHART

SHIELD LENGTH

SEE CHART

SHIELD LENGTH,

SWIVEL

SHIELD LENGTH FOR PIPE - NOT LESS THAN THE FOLLOWING:

a. NPS 1/4" TO 3-1/2" 12" LONG AND .048" THICK

b. NPS 4" 12" LONG AND .06" THICK

c. NPS 5" TO 6" 18" LONG AND .06" THICK

d. NPS 8" TO 14" 24" LONG AND .075" THICK

e. NPS 16" TO 24" 24" LONG AND .105" THICK

NOTE:

1. PIPES NPS 8" AND LARGER: INCLUDE WOOD OR REINFORCED CALCIUM-SILICATE-INSULATION INSERTS OF LENGTH AT LEAST AS LONG AS

PROTECTIVE SHIELD.

2. THERMAL-HANGER SHIELDS: INSTALL WITH INSULATION SAME THICKNESS AS PIPING INSULATION.

SHIELD TO COVER 180°

OF PIPE, SEE CHART FOR

LENGTH

SHIELD TO COVER 180°

OF PIPE, SEE CHART FOR

LENGTH

THREADED ROD

U-BOLT (TYP.) UNISTRUT OR STEEL ANGLE

WITH LONG LEG DOWN

SHIELD TO COVER 360° OF

PIPE, SEE CHART FOR

LENGTH

HANGER, INSULATION ON PIPE

CONTINUOUS THROUGH HANGER

WITHOUT SWALLOWING

PIPE (TYP.)

DIRT LEG

TO EQUIPMENT

SHUT-OFF VALVE

REMOVABLE

CAP

UNION

SUPPLY PIPING

PRESSURE REGULATOR (IF REQUIRED)

STRAINER

(TYP.)

CHECK

VALVE (TYP.)

PRESSURE

GAUGE (TYP.)

ISOLATION VALVE (TYP.)

FLEXIBLE PIPE

CONNECTION (TYP.)

SUCTION

DIFFUSER

PIPE DIAMETER MIN.

3 STRAIGHT

FULLY GROUT PUMP

FRAME

BALANCE

VALVE (TYP.)

STRAINER

ISOLATION

VALVE (TYP.)

PRESSURE

GAUGE

CHECK

VALVE

BALANCING

VALVE

PUMP UNION

(TYP.)

SUPPORT PUMP

SEPARATE FROM

PIPING

FLEXIBLE PIPE

CONNECTION (TYP.)

REHEAT COIL

CONTROL

VALVE

UNION

(TYP.)

STRAINER

VALVE

(TYP.)

AUTOFLOW

VALVE

HWS

HWR

MANUAL AIR VENT

HOSE END DRAIN WITH CAP

NOTE: SEE PLANS FOR PIPE SIZE, MINIMUM 3/4".

FLOORS

E

E N

O T

E S

B E

L O

W

T Y

P

IC

A L

L Y

A

.F .F

TYPICAL HVAC CONTROL DEVICE INSTALLATION

THERMOSTAT

OR OTHER HVAC

CONTROL DEVICE

LIGHT

SWITCH

NOTES:

1. WHEN THERMOSTAT IS LOCATED ADJACENT TO LIGHT SWITCH OR OTHER

WALL MOUNTED ELECTRICAL OR CONTROL DEVICE, DEVICES TO BE

INSTALLED AT THE SAME ELEVATION.

2. ALL USER INPUT BUTTONS OR SWITCHES ON CONTORL DEVICE TO BE

LOCATED BELOW 48" A.F.F. TO MEET ADA REQUIREMENTS.

3. WHEN INSTALLED NEAR DOOR, LIGHT SWITCH SHALL BE DEVICE CLOSEST TO

DOOR FRAME.

4. IF DEVICE IS LOCATED ABOVE COUNTER, INSTALL AT 40" A.F.F.

CL

SPECIFIED

DUCT SIZE

VENTILATING ROOF

THIMBLE

FLASHING AND

STORM COLLAR

ROOFING

ROOF DECK

RAIN PROOF, LISTED CAP

BIRD PROOF, LISTED CAP

METAL CHIMNEY

M

IN

T E

R M

IN

A

T E

O P

E N

IN

G

'-0

A

B O

V E

T H

E H

IG

H

E S

P O

IN

T

W H

E R

E T

H E

V E

N T

P A

S S

E S

T H

R U

T H

E

R O

O F

A N

D N

O T

L E

S S

T H

A N

'-0

A

B O

V E

O R

0'

-0

A W

A Y

F R

O M

A N

Y P

O R

T

IO

N O

F T

H E

B U

IL

D

IN

G

NOTE:

GAS FLUE AND TERMINATION SHALL COMPLY WITH ALL LOCAL CODES

AND MANUFACTURERS RECOMMENDATION.

CANT

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \a p o s p is il\

D o c u m e n ts

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Checker

02/03/2026

09258.012

M401

DETAILS - MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M401 DETAILS - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

DATE INITIAL

03/11/2026

SCALE: NOT TO SCALE

INTERIOR PIPE SLEEVE DETAILS

SCALE: NOT TO SCALE

PIPE HANGER DETAIL

SCALE: NOT TO SCALE

TYPICAL GAS PIPING DETAIL

SCALE: NOT TO SCALE

BASE MOUNTED END SUCTION PUMP DETAIL

SCALE: NOT TO SCALE

IN-LINE CIRCULATING PUMP PIPING (VFD) DETAIL

SCALE: NOT TO SCALE

REHEAT COIL PIPING DETAIL

SCALE: 12" = 1'-0"

THERMOSTAT DETAIL

SCALE: NOT TO SCALE

GAS FLUE THRU ROOF DETAIL

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \a p o s p is il\

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Checker

02/03/2026

09258.012

M501

SCHEDULE - MECHANICAL

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 6- M501 SCHEDULE - MECHANICAL

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

DATE INITIAL

03/11/2026

EXISTING BAS SYSTEM: ASVS, BACNET-IP AUTOMATED LOGIC SYSTEMS.

LOCAL PROVIDER: AUTOMATIC CONTROLS.

ALL NEW EQUIPIMENT IS TO BE PROGRAMMED TO MATCH EXISTING

CONTROL SEQUENCES.

7. CONNECT UNIT TO EXISTING BACNET-IP BAS SYSTEM.

6. PROVIDE ALL STAINLESS STEEL CONSTRUCTION OPTION.

5. PROVIDE INDIVIDUAL ELECTRICAL CONNECTIONS FOR EACH COOLING TOWER FAN, AND SINGLE POWER CONNECTION FOR AMBIENT HEATERS. PROVIDE FAN WITH VFD WITH INTERGRAL DISCONNECT. SEE ELECTRICAL FOR ADDITIONAL INFORMATION

4. PROVIDE COOLING TOWER WITH BASIN FLOAT.

3.BASIN HEATER TO BE STAINLESS STEEL CONSTRUCTION WITH AUTOMATIC LOW VOLTAGE CONTROL AND TEMPERATURE SENSOR.

2. PROVIDE WITH ACCCESS LADDERS FOR TOWER MAINTENANCE. PROVIDE WITH JIB CRANE HOIST FOR MOTOR AND FAN REPLACEMENT

NOTES: 1. PROVIDE WITH SOUND REDUCING OULET, VIBRATION ISOLATION AND VIBRATION CUT-OFF SWITCH.

CT-1 SEE PLANS CH-1,2 170,300 2400 95 85 7.81 78 12,000 50 2 2x10 460 3 COUNTERFLOW 16'-2.25" 11'-10" 24'-0.5" 34,170 BAC VT1-800-Q 1-7

FAN HP FAN QTY

BASIN

HEATER

(kW) VOLT PH CONFIGURATION HEIGHT (FT) WIDTH (FT) DEPTH (FT)

OPERATING WEIGHT

(LB)MARK LOCATION SERVES FAN CFM

FLUID

FLOW

(GPM) EWT (°F) LWT (°F)

MAX PD

(PSI)

WET BULB

TEMP (°F)

TOTAL

CAPACITY (MBH)

ELECTRICAL PHYSICAL DATA

BASIS OF DESIGN REMARKS

COOLING TOWER SCHEDULE

ET-2 RADIANT FLOOR BOILER ROOM DIAPHRAGM 40-200 15 125 8 5 TACO CX30-125 ---

ET-1 HW SYSTEM BOILER ROOM DIAPHRAGM 40-200 15 125 57 27 TACO CX215-125 ---

MARK SERVES LOCATION TYPE TEMP RANGE (°F) FILL PRESSURE (PSIG)

MAX OPER.

PRESSURE (PSIG)

TANK VOLUME

(GAL)

ACCEPTANCE

VOLUME (GAL) BASIS OF DESIGN REMARKS

EXPANSION TANK SCHEDULE

7. CONNECT TO EXISTING BACNET-IP BAS SYSTEM.

6. CONFIGURE AS LEAD/LAG IN CASCADE MODE.

5. PROVIDE CSD-1 EMERGENCY SHUTOFF SWITCH(ES) AT EACH MECH ROOM EXIST. SWITCH TO SHUTOFF GAS AND ELECTRICAL TO BOILERS.

4. PROVIDE WITH SYSTEM TEMP SENSOR, OUTDOOR AIR SENSOR, SYSTEM PUMP RELAY AND ALARM BELL.

3. PROVIDE WITH ROOM AIR KIT FOR COMBUSTION AIR. CONTRACTOR TO VERIFY EXISTING COMBUSTION AIR INLET CONDITIONS MEET REQUIREMENTS OF BOILER.

2. BOILER TO OPERATE ON ITS OWN INTERNAL CONTROLS WITH CONNECTION TO BAS. BOILER SEQUENCES ARE TO MATCH EXISTING BOILER SEQUENCE OF OPERATIONS.

NOTES: 1. PROVIDE BOILER WITH CONDENSATE NEUTRILIZATION KIT. VENT AND COMBUSTION AIR TO BE INSTALLED PER THE MANUFACTURER'S REQUIREMENTS SEE PLANS FOR INSTALLATION.

B-1,2 MECH FIRETUBE NAT. GAS 650 625.95 48.15 13:1 96.3 62 160 180 3.23 120 1 8 29 27 74 674 FULTON ENDURA EXE-650 1-7

INPUT (MBH) OUTPUT (MBH) MIN OUTPUT (MBH) TURNDOWN MAX EFFICIENCY (%) GPM EWT (°F) LWT (°F) MAX PD (FT WAT) VOLT PHASE FLA LENGTH (IN) WIDTH (IN) HEIGHT (IN)

OPERATING WEIGHT

(LB)MARK LOCATION TYPE FUEL

HEATING DATA WATERSIDE DATA ELECTRICAL DATA PHYSICAL DATA

BASIS OF DESIGN REMARKS

GAS FIRED HOT WATER BOILER SCHEDULE

3. VFD WITH INTEGRAL DISCONNECT TO BE PROVIDED BY MECHANICAL CONTRACTOR. CONTRACTOR TO COORDINATE INSTALLATION WITH ELECTRICAL CONTRACTOR.

2. PROVIDE PUMP WITH UPRIGHT PIPING CONFIGURATION WITH 3 STRAIGTH DIAMETERS AT INLET AND OULET. PUMP TO BE LASTER ALIGNED AFTER INSTALLATION.

NOTES: 1. UNIT IS TO BE CONNECTED TO EXISTING BACNET-IP BAS SYSTEM.

P-6 GROUNDS RADIANT FLOOR INLINE WATER 8 30 5 3450 1/3 115 1 60 BAS TACO 2400-45 1

P-1,2 GROUNDS SECONDARY LOOP BASE MOUNTED END SUCTION WATER 86 65 56 1760 3 208 3 60 VFD TACO FI1209C 1,2,3

CP-1,2,3 ARCH CT-1 BASE MOUNTED END SUCTION WATER 1200 65 87 1160 25 460 3 60 VFD TACO FI6013D 1,2,3

RPM HP VOLTS PH HZMARK LOCATION SERVES TYPE FLUID TYPE FLOW GPM

HEAD FT

WG MIN % EFF

ELECTRICAL DATA

CONTROL TYPE

BASIS OF DESIGN REMARKS

PUMP SCHEDULE

HX-1 RADIANT FLOOR COUNTER-CURRENT 59.6 16 WATER 6.095 180 160 7 1.53 WATER 8 90 105 8 2.16 TACO TB10Tx16 ---

FLUID FLOWRATE (GPM) EWT (°F) LWT (°F) # OF PASSES MAX PD (PSI) FLUID FLOWRATE (GPM) EWT (°F) LWT (°F) # OF PASSES MAX PD (PSI)MARK SERVES TYPE LOAD (MBH) # OF PLATES

HOT-SIDE DATA COLD-SIDE DATA MANUFACTURER AND MODEL

NUMBER REMARKS

BRAZED PLATE HEAT EXCHANGER SCHEDULE

2. CONNECT UNITS TO EXISTING BACNET-IP BAS SYSTEM.

NOTES: 1. PROVIDE UNIT WITH INSULATION AND FOIL FACED LINER, CROSS-FLOW AIR SENSOR, AND CONTROL ENCLOSURE.

VAV-11 AHU-1 08 500 250 0.15 1 16 19 250 55 92.5 10.2 1 0.1 159.1 1 0.56 KRUEGER LMHS 1,2

VAV-10 AHU-1 05 200 200 0.09 1 11 20 200 55 93 8.3 1 0.03 166.5 1.3 0.66 KRUEGER LMHS 1,2

VAV-9 AHU-1 09 600 250 0.11 1 12 15 250 55 96.9 11.4 1 0.07 156.7 1 0.13 KRUEGER LMHS 1,2

VAV-8 AHU-1 12 455 455 0.03 1 12 - 455 55 94.6 19.5 1 0.02 160 2 0.51 KRUEGER LMHS 1,2

VAV-7 AHU-1 10 370 370 0.04 1 - - 370 55 92.3 15 1 0.03 162.4 1.8 0.32 KRUEGER LMHS 1,2

VAV-6 AHU-1 12 1060 500 0.16 1 16 13 500 55 94.7 21.5 1 0.12 165.3 3 1.1 KRUEGER LMHS 1,2

VAV-5 AHU-1 12 960 960 0.23 1 15 11 960 55 100.2 47.1 2 0.19 141.3 2.5 0.48 KRUEGER LMHS 1,2

VAV-4 AHU-1 12 1080 960 0.28 1 15 13 960 55 100.2 47.1 2 0.23 141.3 2.5 0.48 KRUEGER LMHS 1,2

VAV-3 AHU-1 07 390 120 0.12 1 16 20 170 55 95.6 7.5 1 0.07 149.2 0.5 0.19 KRUEGER LMHS 1,2

VAV-2 AHU-1 07 410 200 0.13 1 16 20 200 55 97.4 9.2 1 0.07 161.1 1 0.56 KRUEGER LMHS 1,2

VAV-1 AHU-1 05 250 160 0.15 1 13 25 160 55 96.7 7.2 1 0.05 165.1 1 0.43 KRUEGER LMHS 1,2

MAX MIN MIN INLET RAD DIS CFM EAT (°F) LAT (°F) CAP (MBH) NO ROWS MAX PD LWT (°F) GPM PRESS DROP FT WATMARK AHU

INLET SIZE

(IN)

CFM

STATIC PRESSURE (IN

WG) NC LEVELS REHEAT COIL DATA

BASIS OF DESIGN REMARKS

AIR TERMINAL UNIT SCHEDULE

NOTES: 1. PROVIDE UNIT WITH ACCESSORIES TO SUPPORT UNIT FROM STRUCTURE.

AS-2 AIR SEPARATOR RADIANT FLOOR BOILER ROOM 8 GPM @ 0.1 FT WAT PD SPIROTHERM VDT-200 1

AS-1 AIR SEPARATOR HOT WATER SYSTEM BOILER ROOM 86 GPM @ 1 FT WAT PD SPIROTHERM VDT-300 1

MARK FUNCTION SERVES LOCATION OPERATING CONDITIONS BASIS OF DESIGN REMARKS

MISCELLANEOUS MECHANICAL EQUIPMENT SCHEDULE

A. ITEMS WHICH ARE INTENDED TO BE REMOVED, RELOCATED, OR

SALVAGED ARE SHOWN AS FULL-TONE LINES ON DEMO PLANS.

ALL OTHER ITEMS ARE INTENDED TO REMAIN IN PLACE AND ARE

SHOWN AS HALF-TONE.

B. DEMOLITION SHOWN IS AS REQUIRED FOR THE COMPLETE

PROJECT. COORDINATE DEMOLITION WITH THE WORK OF OTHER

TRADES. PROVIDE TEMPORARY POWER AND LIGHTS AS

REQUIRED TO ALLOW THE WORK OF OTHER TRADES TO

PROCEED OR AS REQUIRED TO ALLOW THE OWNER TO OCCUPY

THE SPACE.

C. ALL OF THE EQUIPMENT AND DEVICES SHOWN ON THIS DRAWING

ARE EXISTING. THE LOCATIONS OF THE EQUIPMENT AND DEVICES

WERE OBTAINED FROM EXISTING DRAWING AND FIELD

INVESTIGATION. THE LOCATIONS OF THE EXISTING EQUIPMENT

AND DEVICES ARE SHOWN FOR THE CONVENIENCE. ACCURACY

OF THE INFORMATION SHOWN IS NOT GUARANTEED.

VERIFICATION OF EXISTING CONDITIONS PRIOR TO SUBMITTING

BIDS IS ENCOURAGED. SITE VISITS PRIOR TO SUBMISSION OF BIDS

NEED TO BE FULLY COORDINATED WITH THE OWNER.

D. CIRCUIT INFORMATION FOR ALL AFFECTED CIRCUITS SHALL BE

VERIFIED PRIOR TO COMMENCING WORK. ACCURACY OF THE

INFORMATION SHOWN AND INCLUDED ON THE PANEL SCHEDULES

IS NOT GUARANTEED.

E. LUMINAIRES AND DEVICES INDICATED TO BE REMOVED, WHICH

ARE LOCATED ON CEILINGS OR WALLS, SHALL HAVE LUMINAIRES,

DEVICE AND ALL ASSOCIATED CIRCUIT WIRING AND CONDUIT

REMOVED BACK TO NEAREST JUNCTION BOX, OR DEVICE NOT

INDICATED TO BE REMOVED. ACTUAL CIRCUITING MUST BE

DETERMINED IN THE FIELD. THE CONTRACTOR SHALL PROVIDE

ALL NECESSARY WIRE, CONDUIT, DEVICES AND CONNECTIONS

NECESSARY TO ENSURE CIRCUIT CONTINUITY OF THE REMAINING

DEVICES.

F. THE OWNER HAS THE RIGHT TO RETAIN ALL SALVAGEABLE

MATERIAL. ANY MATERIAL THE OWNER CHOOSES NOT TO ACCEPT

SHALL BE REMOVED FROM THE SITE AND PROPERLY DISPOSED

OF IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL

REGULATIONS. REMOVE ALL PCB BALLAST OR HAZARDOUS

LAMPS.

G. LABEL ALL SPARE OR ABANDONED CIRCUITS AND/OR CIRCUIT

BREAKERS IN ALL PANELBOARDS AFFECTED BY THE DEMOLITION.

SPARE CIRCUITS AND/OR CIRCUIT BREAKERS MAY BE REUSED

FOR THE CIRCUITING OF THE NEW OR REMODELED AREA AS

SPACE AND PANEL LOADING WILL ALLOW.

H. RESTORE ALL EXISTING SURFACES REQUIRING PATCHING,

PLASTERING, PAINTING AND/OR OTHER REPAIR DUE TO THE

DEMOLITION WORK, UNDER THE TERMS OF THIS SPECIFICATION.

CLOSE AND SEAL ALL OPENINGS, REPAIR ALL SURFACES, ETC., AS

REQUIRED.

I. EXISTING FIRE ALARM DEVICES, EMERGENCY LIGHTS, AND EXIT

SIGNS SHALL BE COMPLETE AND OPERABLE AT ALL TIMES.

PROVIDE TEMPORARY DEVICES IN AREAS BEING WORKED ON TO

ALLOW FOR A WORKABLE SYSTEM DURING CONSTRUCTION.

J. PROVIDE MINIMUM [2] DAYS ADVANCE NOTICE OF OUTAGES.

COORDINATE WITH OWNER FOR ALL ANTICIPATED OUTAGES.

OWNER HAS FINAL APPROVAL ON TIME AND EXTENT OF POWER

OUTAGE.

K. PROTECT EXISTING FURNITURE, CARPET, EQUIPMENT, DEVICES,

AND OTHER APPURTENANCES FROM DAMAGE DURING THE

COURSE OF CONSTRUCTION. REPLACE DAMAGED ITEMS FREE OF

COST TO THE OWNER.

A. ALL DEVICES SHOWN SHALL BE MOUNTED AT 18" A.F.F. UNLESS

INDICATED OTHERWISE.

B. ALL AUXILIARY CABLE ABOVE CEILING SHALL BE PLENUM RATED

WHERE REQUIRED.

C. CEILING MOUNTED DEVICES SHALL BE CENTERED IN CEILING TILE

WHERE INSTALLED IN ACOUSTICAL TILE CEILING.

D. PROVIDE 120 VOLT POWER CIRCUIT(S) FOR AUXILIARY SYSTEMS

AS REQUIRED FOR COMPLETE AND OPERATIONAL SYSTEMS.

A. DRAWINGS DO NOT SHOW TOTAL NUMBER OF CONDUCTORS FOR

CIRCUITS REQUIRED. PROVIDE THE NUMBER OF CONDUCTORS

NEEDED TO COMPLETE INSTALLATION OF SPECIFIC EQUIPMENT

FURNISHED. A GREEN GROUND CONDUCTOR, SIZED PER NEC,

SHALL ALSO BE INCLUDED IN EACH CIRCUIT. ADJUST

CONDUCTOR SIZES AS NEEDED TO LIMIT VOLTAGE DROP TO

LEVELS RECOMMENDED BY NEC. COORDINATE INSPECTIONS

WITH THE OWNER AND AHJ.

B. SEE ARCHITECTURAL SHEETS FOR REFLECTED CEILING PLANS.

C. ALL CIRCUITS SHALL HAVE SEPARATE NEUTRAL WIRES BUT CAN

SHARE AN INSULATED GREEN GROUND WIRE IN MINIMUM 3/4"

EMT CONDUIT.

D. SEAL ALL PENETRATIONS THROUGH FIRE OR FIRE/SMOKE RATED

WALLS AND FLOORS.

E. ALL RACEWAYS SHALL BE SEALED AS REQUIRED BY AND IN

ACCORDANCE WITH NEC PARAGRAPHS 230.8, 300.5(G) AND

300.7(A). ALL RACEWAYS SHALL BE SEALED AS REQUIRED BY NEC

AND NFPA.

F. CABLE AND CONDUIT SHALL NOT INTERFERE WITH EQUIPMENT

ACCESS.

G. ALL CABLING ABOVE CEILING SHALL BE PROPERLY SUPPORTED

(NOT FROM CEILING SYSTEM).

H. COORDINATE FINAL PANELBOARD DIRECTORIES WITH ENGINEER

AND OWNER.

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

\0

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KJS

02/03/2026

09258.012

E 01

ELECTRICAL INFO SHEET

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E 01 ELECTRICAL INFO SHEET

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

GENERAL LIGHTING NOTES XREF. NOTES ( )

PROJECT ELECTRICAL REFERENCED NOTES

GENERAL NOTES REF. DEMO NOTES ( )

PROJECT ELECTRICAL REFERENCED DEMOLITION NOTES

DXGENERAL DEMO NOTES

GEN. POWER & AUX SYS. NOTES

D1 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY

MECHANICAL. EXISTING CIRCUIT MAY BE REUSED TO EXTENT

POSSIBLE FOR NEW EQUIPMENT INSTALLATION AT THIS

LOCATION.

D2 REMOVE AND REINSTALL, OR PROVIDE SUPPORT FOR, LIGHTING

AND DEVICES IN/ON CEILING AS REQUIRED FOR CEILING WORK

ASSOCIATED WITH REMOVAL AND INSTALLATION OF VAVS BY

MECHANICAL.

D3 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY

MECHANICAL.

D4 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY

MECHANICAL. EXISTING CIRCUIT FOR BASIN HEATER MAY BE

REUSED TO EXTENT POSSIBLE FOR NEW EQUIPMENT

INSTALLATION AT THIS LOCATION.

1 REUSE EXISTING CONDUIT AND CONDUCTORS TO PREVIOUSLY

SERVING EQUIPMENT AT THIS LOCATION, TO EXTENT POSSIBLE.

EXTEND CIRCUITING AS REQUIRED FOR NEW EQUIPMENT

CONNECTION.

2 CONNECT TO EXISTING CIRCUIT BREAKER MADE SPARE BY

DEMOLITION.

3 PROVIDE NEW CIRCUIT BREAKER IN SPACE MADE AVAILABLE BY

DEMOLITION TO SERVE NEW EQUIPMENT. PROVIDE NEW BRANCH

CIRCUIT WIRING.

4 PROVIDE 4-POLE (2-ACTIVE, 2 SPARE) 120V COIL ELECTRICALLY

HELD CONTACTOR FOR CONTROL OF BOILER POWER CIRCUITS.

PROVIDE TWO (2) MUSHROOM STYLE, TWIST TO RELEASE PUSH

BUTTONS WITH NORMALLY CLOSED CONTACTS. PROVIDE

CONDUIT, BOXES, CLEAR BUTTON COVERS AND WIRING AS

NECESSARY FOR COMPLETE EMERGENCY SHUTDOWN FOR

BOILERS. PROVIDE LABELS FOR BUTTONS TO READ "EMERGENCY

BOILER SHUT-OFF".

DATE INITIAL

03/11/2026

03/11/2026

WAREHOUSE

RECEIVING

STAIR

SUPPLIES

JANITOR

DATA

CORRIDOR

BREAKROOM

MEN

WOMEN

MENS LOCKER

WOMENS LOCKER

SUPPLIES

TRAINING ROOM

ENTRY

WORK ROOM

OFFICE

OPEN OFFICE

TRUCK BAYS

D2 D2

D2

D2

D2

D2

VAV-4

VAV-2

VAV-1

VAV-3

VAV-10

VAV-5

VAV-6

VAV-8 VAV-9

VAV-7

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

\0

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KJS

02/03/2026

09258.012

E001

FLOOR PLAN - DEMOLITION

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E001 FLOOR PLAN - DEMOLITION

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. DEMO NOTES ( ):DX

D2 REMOVE AND REINSTALL, OR PROVIDE SUPPORT FOR, LIGHTING AND

DEVICES IN/ON CEILING AS REQUIRED FOR CEILING WORK ASSOCIATED

WITH REMOVAL AND INSTALLATION OF VAVS BY MECHANICAL.

SCALE: 1/8" = 1'-0"

FIRST FLOOR PLAN - ELECTRICAL DEMOLITION - CLIN 3

DATE INITIAL

03/11/2026

TOILET

STAIR

ELEVATOR EQUIPMENT

ELEC ROOM

MECH ROOM

EXTG PANEL 'PP1'

EXTG PANEL 'PP5'

EXTG PANEL 'RP1'

EXTG PANEL 'MDP'

D1

D1

D1

D1

D1

D3

MECHANICAL

151A

METER

EXTG PANEL 'PP4'

EXTG PANEL 'LP-11'

EXTG PANEL 'ELP-14'

EXTG PANEL 'PP6'

D4

D3

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

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JCB

KJS

02/03/2026

09258.012

E002

FLOOR PLAN - DEMOLITION

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E002 FLOOR PLAN - DEMOLITION

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. DEMO NOTES ( ):DX

D1 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY MECHANICAL.

EXISTING CIRCUIT MAY BE REUSED TO EXTENT POSSIBLE FOR NEW

EQUIPMENT INSTALLATION AT THIS LOCATION.

D3 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY MECHANICAL.

D4 DISCONNECT EXISTING EQUIPMENT FOR REMOVAL BY MECHANICAL.

EXISTING CIRCUIT FOR BASIN HEATER MAY BE REUSED TO EXTENT

POSSIBLE FOR NEW EQUIPMENT INSTALLATION AT THIS LOCATION.

SCALE: 1/4" = 1'-0"

BASEMENT FLOOR PLAN - ELECTRICAL DEMOLITION - CLIN 2

SCALE: 1/4" = 1'-0"

FIRST FLOOR PLAN - ELECTRICAL DEMOLITION - CLIN 1

DATE INITIAL

03/11/2026

1 1

ALL POWERED RECEPTACLES, DEVICES, AND EQUIPMENT SHOWN SHALL BE

CIRCUITED AS OUTLINED IN THIS NOTE, UNLESS INDICATED OTHERWISE.

PANELBOARD CIRCUITING, INCLUDING IDENTIFYING SEPARATE

PANELBOARDS' BRANCH CIRCUIT AREAS, IS DELINEATED WITH A DASH-DOT

LINE BOUNDARY, WITH PANEL NAMES IDENTIFIED AT BOUNDARY LINE.

CIRCUIT NUMBERS ARE IDENTIFIED ADJACENT TO RECEPTACLE, DEVICE, OR

EQUIPMENT. REFER TO PANEL SCHEDULES FOR ADDITIONAL INFORMATION.

PANELBOARD CIRCUITING

STAIR

ELEVATOR EQUIPMENT

ELEC ROOM

MECH ROOM

EXTG PANEL 'MDP'

EXTG PANEL 'PP1'

EXTG PANEL 'PP5'

EXTG PANEL 'RP1'

PP1 - 25,27,29

P-1

PP1 - 31,33,35

P-2

PP1 - 28

P-6

PP1 - 11

B-1

PP1 - 26

B-2

PP1 - 22

CONTACTOR

MECHANICAL

151A

METER

PP4 - 3

CTF-1

PP4 - 2

CP-1

PP4 - 12

CP-2

PP4 - 1

CP-3

EXTG PANEL 'PP4'

EXTG PANEL 'LP-11'

EXTG PANEL 'ELP-14'

EXTG PANEL 'PP6'

PP4 - 5

CTF-2

PP6 - 3

BH-1 1

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

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KJS

02/03/2026

09258.012

E201

FLOOR PLAN - POWER

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E201 FLOOR PLAN - POWER

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

REF. NOTES ( ):X

1 REUSE EXISTING CONDUIT AND CONDUCTORS TO PREVIOUSLY SERVING

EQUIPMENT AT THIS LOCATION, TO EXTENT POSSIBLE. EXTEND

CIRCUITING AS REQUIRED FOR NEW EQUIPMENT CONNECTION.

2 CONNECT TO EXISTING CIRCUIT BREAKER MADE SPARE BY DEMOLITION.

3 PROVIDE NEW CIRCUIT BREAKER IN SPACE MADE AVAILABLE BY

DEMOLITION TO SERVE NEW EQUIPMENT. PROVIDE NEW BRANCH CIRCUIT

WIRING.

4 PROVIDE 4-POLE (2-ACTIVE, 2 SPARE) 120V COIL ELECTRICALLY HELD

CONTACTOR FOR CONTROL OF BOILER POWER CIRCUITS. PROVIDE TWO

(2) MUSHROOM STYLE, TWIST TO RELEASE PUSH BUTTONS WITH

NORMALLY CLOSED CONTACTS. PROVIDE CONDUIT, BOXES, CLEAR

BUTTON COVERS AND WIRING AS NECESSARY FOR COMPLETE

EMERGENCY SHUTDOWN FOR BOILERS. PROVIDE LABELS FOR BUTTONS

TO READ "EMERGENCY BOILER SHUT-OFF".

SCALE: 1/4" = 1'-0"

BASEMENT FLOOR PLAN - POWER - CLIN 2

SCALE: 1/4" = 1'-0"

FIRST FLOOR PLAN - POWER - CLIN 1

DATE INITIAL

03/11/2026

GENERAL EQUIPMENT SCHEDULE NOTES:

A. THIS SCHEDULE DISPLAYS SIZING INFORMATION THAT IS GENERIC IN

NATURE. SCHEDULE DOES NOT ITEMIZE ALL INSTANCES OF

EQUIPMENT. CONTRACTOR SHALL REFER TO THE PLANS FOR FINAL

QUANTITIES AND LOCATIONS.

B. MOUNT ALL DISCONNECTS AND STARTERS ON ASSOCIATED

EQUIPMENT UNLESS SHOWN OTHERWISE. MAINTAIN WORKING

CLEARANCES PER NEC; COORDINATE WITH MECHANICAL

CONTRACTOR.

C. NFD OR FD = NON-FUSED OR FUSED DISCONNECT SWITCH.

D. CS/NFD, FD = COMBINATION STARTER/ NON OR FUSED DISCONNECT

SWITCH.

E. INT = INTEGRAL DISCONNECT FURNISHED WITH EQUIPMENT.

F. EXP = DEVICE TO BE EXPLOSION-PROOF.

G. ALL SWITCHES, DISCONNECTS, ETC SHALL BE LOCKABLE.

H. ALL SWITCHES, DISCONNECTS, ETC SHALL BE NEMA 3R WHERE

REQUIRED.

I. PROVIDE FUSES AS SHOWN; REVISE SIZES PER ACTUAL NAMEPLATE

DATA.

J. STARTER ACCESSORIES:STARTER ACCESSORIES:

1. CONTROL TRANSFORMER

2. H-O-A SWITCH

3. RED RUN LIGHT

4. 2 NO CONTACTS; 2 NC CONTACTS

K. PROVIDE DUCT DETECTOR, SHUTDOWN RELAY, AND ACCESSORIES

AS REQUIRED TO SHUTDOWN HVAC EQUIPMENT 2000 CFM OR HIGHER

PER NFPA AND AHJ.

EQUIPMENT SCHEDULE NOTES:

1. VFD PROVIDED BY MECH, INSTALLED BY ELEC.

2. VERIFY LOCATION OF VFD/DISCONNECT WITH MECH. IF MECH

PROVIDED VFD/DICONNECT IS LOCATED REMOTELY NOT WITHN SIGHT

OF COOLING TOWER, PROVIDE 100/3 NFD DISCONNECT AT TOWER.

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

\0

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02/03/2026

09258.012

E601

EQUIPMENT SCHEDULE

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E601 EQUIPMENT SCHEDULE

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

EQUIPMENT SCHEDULE

DEVICE DEVICE DESCRIPTION VOLTAGE PH KW FLA HP

STARTER / DISCONNECT

PLUG CONFIG

RECEPT

CONFIG FEEDER SIZE NOTES TYPE SIZE FUSE

B-1 BOILER 120 V 1 - 8 - NFD 30A/2P - - - 2#12, 1#12G - 3/4"C

B-2 BOILER 120 V 1 - 8 - NFD 30A/2P - - - 2#12, 1#12G - 3/4"C

BH-1 BASIN HEATER 480 V 3 20 - - INT - - - - 3#8, 1#10G - 1"C

CP-1 CONDENSING PUMP 480 V 3 - - 25 VFD - - - - 3#4, 1#10G - 1-1/4"C 1

CP-2 CONDENSING PUMP 480 V 3 - - 25 VFD - - - - 3#4, 1#10G - 1-1/4"C 1

CP-3 CONDENSING PUMP 480 V 3 - - 25 VFD - - - - 3#4, 1#10G - 1-1/4"C 1

CTF-1 COOLING TOWER 480 V 3 - - 50 VFD - - - - 3#2, 1#8G - 1-1/4"C 1,2

CTF-2 COOLING TOWER 480 V 3 - - 50 VFD - - - - 3#2, 1#8G - 1-1/4"C 1,2

P-1 SECONDARY LOOP PUMP 208 V 3 - - 3 VFD - - - - 3#10, 1#10G - 3/4"C 1

P-2 SECONDARY LOOP PUMP 208 V 3 - - 3 VFD - - - - 3#10, 1#10G - 3/4"C 1

P-6 RADIANT FLOOR PUMP 120 V 1 - - 1/3 CS/FD NEMA 0/1P 15 - - 2#12, 1#12G - 3/4"C

DATE INITIAL

03/11/2026

REVISED TITLE OF SHEET DRAWING NO.

SHEET

PMIS / PKG. NO.

OF

SUB SHEET NO.

ARCH/ENG PROJ #

DESIGNED

DRAWN

CHECKED

PREPARED

DATEwww.schemmer.comC U s e rs \j b in g e \D o c u m e n ts \R e v it te m p

\0

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KJS

02/03/2026

09258.012

E701

ELECTRICAL PANEL SCHEDULES

REPLACE COOLING TOWER AND BOILER UNITS

009258012- 7- E701 ELECTRICAL PANEL SCHEDULES

GATEWAY ARCH NATIONAL PARK

11 NORTH 4TH STREET

ST. LOUIS, MO 63102

80034

320855

MCB: Main Circuit Breaker

LOCK: Lockable Circuit Breaker EXTG: Existing Circuit Breaker

GFI: GFCI Circuit Breaker MLO: Main Lug Only

FCB: Feeder Circuit Breaker MCCB: Molded Case Circuit Breaker 1. VERIFY CIRCUIT LOADS AND CONFIRM EACH CIRCUIT IS IN ACTIVE USE. SUBMIT

FINDINGS TO PROJECT ENGINEER PRIOR TO FINAL LOAD ASSESSMENT AND BALANCING.

2. EXISITNG LOADS ARE SHOWN FOR CONVENIENCE AND ARE NOT CALCULATED IN

FINAL LOADING.

3. NEW LOADS/CIRCUIT BREAKERS SHOWN IN BOLD TEXT.

Legend: Notes:

Total Est. Demand Current (80% Rated): 13 A

Continuous Current @ 125%: 13 A

Non-Cont. Current @ 100%: 0 A

Total Est. Demand Current (100% Rated): 11 A

EQP_CONT 3884 VA 100.00% 3884 VA Total Est. Demand: 3884 VA

Load Classification Connected Load Demand Factor Estimated Demand Panel Totals

Total Amps: 11 A 11 A 11 A

Total Load: 1293 VA 1297 VA 1293 VA

41 EXT. RECEPTACLE 20 A 1 0 0 -- -- -- 42

39 EWC 20 A 1 0 0 -- -- -- 40

37 SF1 20 A 1 0 0 3 20 A ROLLING GRILLE 38

35 -- -- -- 167 0 -- -- -- 36

33 -- -- -- 167 0 -- -- -- 34

31 EQP_CONT MECH ROOM 105 P-2 30 A 3 167 0 3 30 A RF1 32

29 -- -- -- 167 0 1 20 A P5 30

27 -- -- -- 167 864 1 20 A EQP_CONT MECH ROOM 105 P-6 28

25 EQP_CONT MECH ROOM 105 P-1 30 A 3 167 960 1 20 A EQP_CONT MECH ROOM 105 B-2 26

23 -- -- -- 0 0 1 20 A BIG FAN 24

21 -- -- -- 0 100 1 20 A EQP_CONT CONTACTOR MECH ROOM 105 22

19 EF1 30 A 3 0 0 1 20 A AC CONTROL UNIT 20

17 RP1, UH-1,2,3,4,CUH1 20 A 1 0 0 1 20 A ELEVATOR SHAFT LIGHTS 18

15 ELEVATOR PIT RECEPTACLE / FLAG LIGHT 20 A 1 0 0 1 20 A ELEVATOR CAR LIGHTS 16

13 CCTV 20 A 1 0 0 1 20 A LIGHTING 14

11 EQP_CONT MECH ROOM 105 B-1 20 A 1 960 0 1 20 A LIGHTING 12

9 DOCK LOCKS 20 A 1 0 0 1 20 A LIGHTING 10

7 O.H. DOORS 20 A 1 0 0 1 20 A LIGHTING 8

5 RECEPTACLES 20 A 1 0 0 1 20 A LIGHTING 6

3 RECEPTACLES 20 A 1 0 0 1 20 A FACP 4

1 RECEPTACLES 20 A 1 0 0 1 20 A ACCESS CONTROL 2

CKT Circuit Description Trip P A B C P Trip Circuit Description CKT

Mounting: SURFACE Wires: 4 FCB / MCB Rating: 225 A

Supply From: MDP Phases: 3 MLO / MCB: MLO

Location: ELEC ROOM 104 Volts: 208Y/120 A.I.C. Rating: UNKNOWN

Extg Branch Panel: PP1

DATE INITIAL

03/11/2026

MCB: Main Circuit Breaker

LOCK: Lockable Circuit Breaker EXTG: Existing Circuit Breaker

GFI: GFCI Circuit Breaker MLO: Main Lug Only

FCB: Feeder Circuit Breaker MCCB: Molded Case Circuit Breaker 1. VERIFY CIRCUIT LOADS AND CONFIRM EACH CIRCUIT IS IN ACTIVE USE. SUBMIT

FINDINGS TO PROJECT ENGINEER PRIOR TO FINAL LOAD ASSESSMENT AND BALANCING.

2. EXISITNG LOADS ARE SHOWN FOR CONVENIENCE AND ARE NOT CALCULATED IN

FINAL LOADING.

3. NEW LOADS/CIRCUIT BREAKERS SHOWN IN BOLD TEXT.

Legend: Notes:

Total Est. Demand Current (80% Rated): 290 A

Continuous Current @ 125%: 290 A

Non-Cont. Current @ 100%: 0 A

Total Est. Demand Current (100% Rated): 232 A

EQP_CONT 192762 VA 100.00% 192762 VA Total Est. Demand: 192762 VA

Load Classification Connected Load Demand Factor Estimated Demand Panel Totals

232 A

192762 VA

12 EQP_CONT MECHANICAL 151A CP-2 3 45 A 28254 VA

11 SPACE HEATER GEN. BLDG. 3 40 A 0 VA

10 SPARE 3 20 A 0 VA

9 NW GEN. BLDG. WALL DISCONNECT 3 100 A 0 VA

8 DAYTON HEATER 3 50 A 0 VA

7 SPARE 3 40 A 0 VA

6 SPARE 3 30 A 0 VA

5 EQP_CONT COOLING TOWER FAN 2 3 90 A 54000 VA

4 T3 / LP11 3 40 A 0 VA

3 EQP_CONT COOLING TOWER FAN 1 3 90 A 54000 VA

2 EQP_CONT MECHANICAL 151A CP-1 3 45 A 28254 VA

1 EQP_CONT MECHANICAL 151A CP-3 3 45 A 28254 VA

CKT Circuit Description # of Poles Trip Rating Load Remarks

Mounting: Wires: 4 FCB / MCB Rating: 400 A

Supply From: Phases: 3 MLO / MCB: MLO

Location: METER 151 Volts: 480Y/277 A.I.C. Rating: UNKNOWN

Extg Power Panel: PP4

MCB: Main Circuit Breaker

LOCK: Lockable Circuit Breaker EXTG: Existing Circuit Breaker

GFI: GFCI Circuit Breaker MLO: Main Lug Only

FCB: Feeder Circuit Breaker MCCB: Molded Case Circuit Breaker 1. VERIFY CIRCUIT LOADS AND CONFIRM EACH CIRCUIT IS IN ACTIVE USE. SUBMIT

FINDINGS TO PROJECT ENGINEER PRIOR TO FINAL LOAD ASSESSMENT AND

BALANCING.

2. EXISITNG LOADS ARE SHOWN FOR CONVENIENCE AND ARE NOT CALCULATED IN

FINAL LOADING.

3. NEW LOADS/CIRCUIT BREAKERS SHOWN IN BOLD TEXT.

Legend: Notes:

Total Est. Demand Current (80% Rated): 30 A

Continuous Current @ 125%: 30 A

Non-Cont. Current @ 100%: 0 A

Total Est. Demand Current (100% Rated): 24 A

EQP_CONT 20000 VA 100.00% 20000 VA Total Est. Demand: 20000 VA

Load Classification Connected Load Demand Factor Estimated Demand Panel Totals

24 A

20000 VA

6 TRANFORMER T-5 GENERATOR BUILDING 3 20 A 0 VA

5 TRANSFORMER T-4 PUMP ROOM 3 30 A 0 VA

4 WATER HEATER 3 60 A 0 VA

3 COOLING TOWER BASIN HEATER BH-1 3 40 A 20000 VA

2 CHILL WATER RECIRCULATING PUMP 3 30 A 0 VA

1 NORTH STORM PUMP PANEL 3 125 A 0 VA

CKT Circuit Description # of Poles Trip Rating Load Remarks

Mounting: Wires: 3 FCB / MCB Rating: 150 A

Supply From: Phases: 3 MLO / MCB: MCB

Location: METER 151 Volts: 480 A.I.C. Rating: UNKNOWN

Extg Power Panel: PP6