Attachment_2_-_Design_Analysis.pdf

100% DESIGN SUBMITTAL

DESIGN ANALYSIS

FOR

REPAIR CHILLED WATER LOOP, GRPC

BUILDING 1907

SCOTT AIR FORCE BASE, ILLINOIS

PROJECT NO. VDYD 11-1213

A-E CONTRACT NO. FA 4407-14-D-0018

Prepared By:

BIAGI, CHANCE, CUMMINS, LONDON, TITZER, INC.

Consulting Engineers

May 18, 2016

INDEX

I. CIVIL – GENERAL CONSTRUCTION

IV. MECHANICAL

V. ELECTRICAL

APPENDIX A – Equipment Cut Sheets

APPENDIX B – CONFIRMATION NOTICES

I. CIVIL

A. GENERAL PARAMETERS

1. Work includes miscellaneous site improvements including, pavements, walks, curbs, sanitary sewers, and lawn surface restoration associated with the chilled water distribution system modifications. Also included is the trenching, excavation and backfill required for the installation of new chilled water mains and isolation valves.

B. FUNCTIONAL AND TECHNICAL DATA

1. Design Criteria.

a. Military Handbook MIL-HDBK-1190, Facility Planning and Design Guide.

b. Illinois Department of Transportation Standard Specifications for Road and Bridge Construction and Details.

C. DESIGN OBJECTIVES

1. Removals. The following items require removal:

a. Pavements, walks and miscellaneous utility services in area of the cooling tower expansion.

2. Sidewalks will be 5 inch thick concrete.

3. Chilled Water Mains. The chilled water mains serving Building 1907 will be installed from the main existing pit north of Building 1900W and connect to the existing chilled water lines discharging from the existing chiller at Building 1907. The chilled water supply line will be routed thru the mechanical room at B1907 thru a pump set. Manufactured pre-insulated PVC carrier pipe with insulation in PVC casing will be utilized.

5. Chilled Water Valves. New shut off valves will be installed in the existing pit north of Building 1900W and at the point of connection at B1907. Valves will be Butterfly type, with manual operators.

6. Grading. Filling and grading around perimeter of building shall provide positive surface drainage away from building. All disturbed lawn areas shall be sodded.

7. Pavements and Curbs. Pavement and curbs removed as part of the trenching operation will be replaced with like type material to match existing constructions.

IV. MECHANICAL

A. SCOPE

1. Provide new chilled water service to B1907 from the chiller equipment serving B1900W.

2. Retain existing chiller at B1907 with valve arrangement to allow the existing chiller to be placed in operation with manual switchover of vavles and electric power

4. Provide new chilled water pumps in the B1907 mechanical room to serve the new chilled water main service to B1907.

5. Replace the existing direct expansion condensing unit and AHU serving the Kitchen and Reception Area in B1907 with new Blower Coil Units (BCU) containing chilled water cooling coils and hot water reheat coils.

Chilled water will be supplied from the new chilled water building service.

B. FUNCTIONAL AND TECHNICAL DATA

1. Design Criteria

a. The following technical manuals shall be used:

- Military Handbook MIL-HDBK-1190, “Facility Planning and Design Guide”.

- ASHRAE Handbook “2009 Fundamentals” and “2008

HVAC Systems and Equipment”.

- Engineering Weather Data, Air Force Combat Cumatology

Center (AFCCC)

b. Design Conditions

Outside Design: Winter -3oF

Summer 95oF Dry Bulb 78oF Wet Bulb (Median of Extreme Low/Highs)

Inside Design: Winter 70oF Summer 76oF

50% RH

C. EXISTING CONDITIONS

1. The existing chiller serving B1907 is pad mounted with pump on exterior of the building. Chilled water piping is routed from the chiller to two (2) air handling units (AHU) in the penthouse. Chilled water piping is routed exposed thru the parapet and across a lower roof to the penthouse. This piping will be retained.

2. The existing chilled water pump serving the chiller and AHU is rated at

170 GPM, at 55 FT of head. The existing chiller and associated pump will be retained.

3. A direct expansion condensing unit is located south of the existing chiller and serves an AHU unit in ceiling cavity in the kitchen areas. The AHU presents maintenance issues due to limited access.

4. Chilled water will be supplied from chillers and pumps in Building

1900W. Redundant pumps were provided with construction of Building 1900W to serve an exterior loop which served B1906, 1910 and 1911. A total of 600 GPM was allotted for these three (3) buildings. Demand for B1907 is 220 GPM. Subsequently, B1910 and B1911 have been demolished, resulting in capacity being available to serve B1907.

D. DESIGN PROVISIONS

1. CHILLER WATER PUMPS. New chilled water pumps will be located in the mechanical room. Pumps will be sized to provide the demand of the existing chiller (170 GPM @ 55 FT Head) plus the added demand for the conversion of the Kitchen and Reception Area from direct expansion air conditioning to chilled water cooling. Each pump will be rated at 220 GPM at 55’ FT Head. Duplex pumps will be provided, each sized for the full system demand. Pumps GPM flow will be controlled by variable-frequency-drives (VFS’s).

2 New valves will be provided at connection to the existing system. The existing chiller will be retained in place, with manual operated valves to allow chilled water to be supplied from either the new loop extension, or from the existing chiller and associated pump.

3. Two (2) Blower Coil Units (BCU) will be installed to replace the existing ceiling cavity AHU serving the Kitchen and Reception Area. A vertical BCU will be installed in a project created mechanical room in the corner of the Reception Area. A horizontal BCU will be installed for the Kitchen in place of the existing above ceiling Air Handling Unit. Both BCU’s will contain chilled water cooling coils and hot water reheat coils. Existing duct and piping mains will be reused.

4. General Construction work will consist of construction of one (1) mechanical room and removal / reinstallation of ceilings for removal of AHU and installation of the BCU’s and associated piping.

V. ELECTRICAL

A. SCOPE

1. Provide electric to chilled water pumps.

2. Remove electric to AHU and add electric for blower coil units.

B. FUNCTIONAL AND TECHNICAL DATA

1. Design Criteria.

a. National Electrical Code - NEC

b. National Fire Protection Association – NFPA

c. International Building Code – IBC

d. Interior Electrical Systems – UFC 3-520-01

e. Grounding Systems – AFI 32-1065

f. Grounding, Bonding and Shielding – MIL-STD-188-124B

C. EXISTING CONDITIONS

1. Existing Power Distribution

a. Building 1907 is served from the base primary electrical distribution system. Primary voltage is routed from the system to a padmounted transformer located on the south side of the building.

The transformer steps the primary voltage down to 208Y/120 volts, 3-phase, 4-wire solidly grounded wye configuration.

b. Electrical service enters Building 1907 and terminates into a main 1200 Amp distribution panelboard within the main mechanical room.

c. Power is distributed out from there to the various loads in the building.

D. DESIGN OBJECTIVES

1. Provide electric to chilled water pumps.

a. Power to serve the two chilled water pumps will originate from the existing main distribution panelboard within the main mechanical room where the two pumps will be located.

b. There is no space to add a new breaker to the panelboard.

Therefore, load will be removed from the panel to make space for a larger breaker to serve the removed load along with the two chilled water pumps.

c. A panelboard will be provided to serve the loads.

d. Variable frequency drives will be provided to control the two chilled water pumps.

2. Remove electric to AHU and add electric for blower coil units.

a. Electric to the AHU indicated to be removed will be disconnected and will be reused to power the replacement blower coil units.

b. Electric to associated condensing unit will be disconnected and removed back to source.

c. A smoke detector will be provided at the return grille of the blower coil unit with air flow above 2000cfm. Detector will shut down blower coil unit upon activation of detector.

APPENDIX A

EQUIPMENT CUT SHEETS

NQ Circuit Breaker Panelboards

Catalog

1640CT0801

Class 1640

CONTENTS

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page Standards and Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Interiors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4 Branch Circuit Breakers (Bolt-On) . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8 Neutrals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10 Ground Bar Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12 Surge Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15 Single Row (Column-Width) Panelboards . . . . . . . . . . . . . . . . . . . . Page 17 Typical Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 18

© 2008 Schneider Electric All Rights Reserved

NQ Circuit Breaker Panelboards Interiors

12/2008

Interiors

Main Circuit Breaker Interiors

• Will accept plug-on or bolt-on branch circuit breakers.

• Merchandised main circuit breaker interiors are suitable for use as service entrance (US only).

• Service entrance barriers are required and available in Canada (factory-assembled only).

• Top- or bottom-feed.

• 65k AIR maximum branch circuit breakers (fully-rated).

• 200k AIR maximum when supplied by I-Limiter circuit breaker (series rated).

• Available with silver-plated copper or tin-plated aluminum bus (aluminum is standard). Tin-plated copper bus is available as an option. Branch connector fingers are all tin-plated copper; silver-plated branch connector fingers are optional.

• 100 A main circuit breaker interiors use a standard main lug interior and an appropriate QOB or QOB-VH main circuit breaker in a branch space; vertical main breaker main breaker interiors are also available.

• 110-225 A main circuit breaker interior consists of:

— Standard main lug interior.

— Main circuit breaker adaptor kit (NQMB2Q, NQMB2HJ or NQMB2KI).

— Appropriate QBL, QDL, QGL, QJL, HDL, HGL, HJL, HLL, JDL, JGL, JJL, JLL, or KIL circuit breaker.

• 250 A main circuit breaker interiors are factory-assembled only.

• 400 A main circuit breaker interiors consist of:

— Standard main lug interior

— Main circuit breaker adapter kit (Catalog No. NQMB4LA)

— Appropriate LAL or LHL circuit breaker

• 600 A main circuit breaker interiors (factory-assembled only) consist of:

— Appropriate LCL or LIL circuit breaker

225 A Main Lugs Interior (Catalog No. NQ442L2)

225 A QBL Main Circuit Breaker Interior

(Catalog No. QBL32225) and Adapter Kit (Catalog No. NQMB2Q)

Deadfront Removed Deadfront Installed

100 A QOB Interior

225 A QBL Interior

Interiors

© 2008 Schneider Electric All Rights Reserved

12/2008

Main Lug Interiors

• Will accept plug-on or bolt-on branch circuit breakers.

• Top- or bottom-feed.

• 65k AIR maximum branch circuit breakers (fully-rated).

• 200k AIR maximum when supplied by remote I-Limiter® circuit breaker

(series rated).

• 100 A and 225 A interiors are suitable for use as service entrance with back-fed QOB circuit breaker (USA only).

• Field-installable sub-feed lug kits for 100–400 A interiors.

• Factory installed main lugs on all interiors.

• 225–400 A main lug interiors are convertible to main circuit breaker by adding a main circuit breaker and adapter kit.

• Available with silver-plated copper or tin-plated aluminum bus

(aluminum is standard). Tin-plated copper bus is available as an option.

Branch connector fingers are all tin-plated copper; silver-plated branch connector fingers are optional.

Main lugs for MLO Interiors

225 A Maximum Main Lug Interior and Deadfront

Main Lug Interiors

100–225 A Maximum 600 A Maximum

Table 4: Aluminum Main lugs for MLO Interiors

Amperes Catalog Number Lug Wire Range for wire bending space

Aluminum Mechanical 100 standard (1) #6-350 kcmil 225 standard (1) #6-350 kcmil

400 standard (1) 1/0-750 kcmil, or

(2) 1/0-350 kcmil

600 standard (2) 1/0-750 kcmil

1 Optional lug for 600 A. Can also be used for 400 A.

NQALM6A (3) 1/0-250 kcmil

Aluminum Compression 100 NQALV1 (1) #4-300 kcmil 225 NQALV2 (1) 250-350 kcmil 400 NQALV4 (2) 2/0-500 kcmil 600 NQALV6 (2) 2/0-500 kcmil

Type VCEL VERSAtile™ Compression Equipment Terminals

Table 5: Copper Main lugs for MLO Interiors

Amperes Catalog Number Lug Wire Range for wire bending space

Copper Mechanical 100 NQCUM1 (1) #6-350 kcmil 225 NQCUM2 (1) #6-350 kcmil

400 NQCUM4 (1) 1/0-750 kcmil, or

(2) 1/0-350 kcmil

600 NQCUM6 (2) 1/0-750 kcmil

Copper Compression 100 NQCUV1 (1) #6-350 kcmil 225 NQCUV2 (1) #6-350 kcmil 400 NQCUV4 (1) 400-750 kcmil 600 NQCUV6 (2) 250-500 kcmil

Interiors

12/2008© 2008 Schneider Electric

All Rights Reserved

Interior Accessories

Branch Mounted Sub-Feed Lug Kits, 240 Vac

Field-Installable Sub-Feed Main Lugs

• 100 A (NQSFL1)

• 225 A (NQSFL2)

• 400 A (NQSFL4)

NOTE: Refer to the Digest for the correct box size.

Field installable Through-Feed Lugs

• 225 A (NQFLT2L) for 30 or 42 circuit interiors

• 225 A (NQFLT2H) for 54, 72 or 84 circuit interiors

• 400 A (NQFLT4H) for 30 or 42 circuit interiors or less

• 400 A (NQFLT4L) for 54, 72 or 84 circuit interiors

NOTE: Refer to the Digest for the correct box size.

Field Installable Sub-Feed Circuit Breaker Kits

Factory-Installed Options

• Sub-Feed Lugs are available on 1φ or 3φ, 100–400 A main lug interiors only.

• Feed-Through Lugs are available on 1φ or 3φ 225–600 A main lug, or 225–600 A main circuit breaker interiors.

• Sub-Feed Circuit Breakers

— Available on 1φ or 3φ main lugs 225–600 A, or main circuit breaker interiors 225–600 A.

— One sub-feed circuit breaker for each 225 A panelboard.

— Two sub-feed circuit breakers for each 400–600 A panelboard.

— Sub-feed circuit breakers may be type HDL, HGL, HJL, HLL, QBL, QDL, QGL, QJL, JDL, JGL, JJL, OR JLL circuit breakers.

Other Accessories Available:

• Split bus

• Lighting contactors

• Compression lugs

• Copper bus

• Phenolic nameplates

Table 6: Branch Mounted Sub-Feed Lugs

Rating Amperes Number of Poles Type of Connection Catalog No. Main Wire Size

Bolt-On

QOB2125SL

#4-2/0 Al or Cu

3 QOB3125SL

225 A Main Lug Interior with Sub-Feed Lugs

225 A Main Lug Interior with Feed-Through Lugs

Table 7: Field Installable Sub-Feed Circuit Breaker Catalog Numbers

Field Ampere Rating Catalog Number Number of Sub-Feed Circuit Breakers and Type

225 NQSFB2Q 1 Q-frame 225 NQSFB2HJ 1 H or J-frame 400 NQSFB4Q 2 Q-frame 400 NQSFB4HJ 2 H or J-frame

NQ Circuit Breaker Panelboards Branch Circuit Breakers (Bolt-on)

12/2008

Branch Circuit Breakers (Bolt-on)

Table 8: Branch Circuit Breakers (Plug-on or Bolt-on) 1

1 Series ratings are also available. Canada: See the Series Rating Guide (data bulletin #S1600PD0302EP) USA: See Switchboard/Panelboard Short-Circuit Current Ratings (data bulletin #2700DB9901), or the Digest

10 k AIR 22 k AIR 65 k AIR 10 k AIR (240 Vac) 42 k AIR

QO, QOB QO-VH, QOB-VH QH, QHB QO-H, QOB-H QOH

1-Pole 10–70 A 1-Pole 15–30 A 1-Pole 15–30 A

2-Pole 15–100 A 2-Pole 35–125 A2-Pole 10–125 A 2-Pole 15–150 A 2-Pole 15–30 A 3-Pole 10–100 A 3-Pole 15–150 A 3-Pole 15–30 A

QOB Branch Circuit Breakers QO Branch Circuit Breakers

Table 9: Branch Circuit Breaker Interrupting Data

Circuit Breaker Catalog Prefix Max. Vac Rating Number of

Poles Ampere Rating

Interrupting Rating— RMS Symmetrical Amperes

Vac

120 120/240 240

QO, QOB

120/240 1 10-70 — 10k — 120/240 2 10-125 — 10k —

240 3 10-100 — — 10k QO-H, QOB-H 240 2 15–125 — — 10k

QO-VH

120/240 1 15–30 — 22k — 120/240 2 15–125 — 22k —

240 3 15–100 — — 22k

QOB-VH

120/240 1 15–30 — 22k — 120/240 2 15–150 — 22k —

240 3 15–150 — — 22k QOH-QOHB 120/240 2 35–125 — 42k —

QH

QHB

120/240 1 15–30 — 65k — 120/240 2 15–30 — 65k —

240 3 15–30 — — 65k

Table 10: Additional Branch Circuit Breaker Information

Circuit Breaker Type Circuit Breaker Catalog Class

QO, QOB 730

QO-AFCI 760

QO-GFI, QOB-GFI 910

Branch Circuit Breakers (Bolt-on)

12/2008© 2008 Schneider Electric

All Rights Reserved

QO® Arc-Fault Circuit Breakers1

QO arc-fault circuit breakers provide branch feeder protection (i.e., QO115AFI) or combination protection (i.e. QO115CAFI) as required by the NEC and local code adoption, and comply with

UL 1699.

NOTE:

• Lugs suitable for 75° C wire.

• Torque QOB connector mounting screws to 18–21 lb-in.

• Torque labels are included on the circuit breakers with load side lug torque requirements.

1 HACR type for use with air conditioning, heating and refrigeration equipment having motor group combinations and marked for use with HACR type circuit breakers.

Table 11: QO Arc-Fault Circuit Breaker Catalog Numbers

Circuit Breaker Type Ampere Rating

1P 120 Vac 10 kAIR 1 Space Required

1P 120 Vac 22 kAIR 1 Space Required

Catalog Number Catalog Number

Branch Feeder Arc-Fault Interrupter

15 QO115AFI QO115VHAFI

20 QO120AFI QO120VHAFI

Combination Arc-Fault Interrupter

15 QO115CAFI QO115VCAFI

20 QO120CAFI QO120VHCAFI

Table 12: Branch Circuit Breaker Lug Data

Ampere Rating Circuit Breaker Type Wire Size

Aluminum Copper

10–30 QO, QOB (2) #12-#8 (2) #14-#8

35–50 QO, QOB (1) #8-#4 (1) #8-#4

60–70 QO, QOB (1) #6-#2 (2) #6-#2

80–125 QO, QOB (1) #4-2/0 (1) #4-2/0

150 QOB-VH (1) #4-300 kcmil (1) #4-300 kcmil

NQ Circuit Breaker Panelboards Neutrals

12/2008

Neutrals

• All lugs suitable for copper or aluminum wire.100–600 A interiors have split neutral located on same end as mains.

• Bondable for use as service entrance (in Canada, available as factory-assembled only).

• Branch terminals suitable for #12-#4 aluminum and #14-#4 copper.

• Provisions for larger branch terminal lugs with use of auxiliary neutral lugs.

• Suitable lug provided on neutrals for termination of grounding conductor.

• All unused neutral terminals may be used to terminate equipment grounding conductors when panelboard is used as service entrance.

• 100% rated neutrals. One neutral termination provided per circuit in panelboard.

• 200% rated neutrals are available as factory-assembled options or as kits.

100–225 A Neutral Assembly

Table 13: Field Installable Copper 100% Neutral Kits

Amperes Catalog Number

100 NQN1CU

225 NQN2CU

400/6001

1 Not for use with 600 sub-feed lugs, feed-through lugs, or sub-feed circuit breaker

NQN6CU

Table 14: Field Installable 200% Neutral Kits

Amperes Catalog Number

100 NQNL1

225 NQNL21

1 Use NQNL2ACCY when installing on a 225A panel with SFL, SFB, or TFL.

400 NQNL42

2 Not to be used with SFL, FTL, or SFB. These combinations are factory-assembled only.

Neutrals

12/2008© 2008 Schneider Electric

All Rights Reserved

200% Neutral Restrictions

225 A, 200% Neutral

• Integral lighting contactors are not available.

• Crimp neutral line lugs are not available.

• If sub-feed lugs, feed-through lugs, or sub-feed circuit breakers are required, order the following 200% neutral kit: NQNL2ACCY

400 A, 200% Neutral

• Type 3R, 5, and 12 enclosures require copper-bussed interiors.

• Sub-feed circuit breakers are available with main lug interiors in Type 1 enclosures only. Sub-feed circuit breakers are not available in Type 3R, 4, 4X, 5, and 12 enclosures.

• Using a sub-feed circuit breaker restricts standard QO and QOB branches to a maximum of 125 A.

• Integral lighting contactors are not available.

• Crimp neutral line lugs are not available.

• 400 A panelboards equipped with 200% neutrals and sub-feed lugs, feed-through lugs, or sub-feed circuit breakers are only available factory-assembled.

Auxiliary Neutral Lugs

Lugs are suitable for copper or aluminum wire and are field-installable on neutral assembly.

Neutral Bonding Provisions

Bonding strap may be field-installed for UL service equipment requirements on 100–400 A interiors (in Canada, available as factory-assembled only).

225 A Interior with Sub-Feed Lugs

Auxiliary Neutral Lugs

#10–#4 AWG

(Catalog No. QO70AN)

#1–4/0 AWG

(Catalog No. Q1150AN)

Typical Neutral Assemblies

400 A 600 A

Neutral Bonding Provisions

100–225 A Provision 400 A Provision

Ground Bar Kits

© 2008 Schneider Electric All Rights Reserved

12/2008

Ground Bar Kits

• Field-installable in all panelboards.

• Suitable for copper or aluminum wire.

• Provisions for mounting up to four ground bar kits per panel.

Ground Bar Insulator Kit (Catalog No. PKGTAB)

The insulator kit is field installable and may be used with equipment ground bar kits. NQ panelboard enclosures have equipment ground bar mounting provisions in all four corners.

Technical Information

All PK equipment grounding kits are supplied with mounting screws, necessary installation instructions, and an “Equipment Grounding Terminal” self-adhesive label.

Equipment Ground Bar

Ground Bar with Insulator Kit

Table 15: Ground Bar Kit Technical Information

Catalog Number Total Qty

Terminals

Approximate Overall Length in (mm)

Distance Between Mounting Holes in (mm)

Qty Each Size (For Wire Range see Table 16:)

I II

PK23GTAL 24 23 1 9.125 (232) 3.125 (79)

PK27GTA 27 27 — 9.125 (232) 3.125 (79)

PK27GTACU 27 27 — 9.125 (232) 3.125 (79)

Table 16: Ground Bar Kit Wire Ranges

Size Cu Al

I (1) #14 to #4 or (2) #14 or #12 (1) #12 to #4 or (2) #12 or #10

II (1) #1 to 4/0 (1) #1 to 4/0

Enclosures

12/2008© 2008 Schneider Electric

All Rights Reserved

Enclosures

Indoor Enclosures (Types 1 and 2)

Boxes (MH):

• Galvanized steel with removable endwalls. One is provided with knockouts and the other is blank.

• Standard box sizes:

— 20 in. (508 mm) wide x 5.75 in. (146 mm) deep, 600 A main lug interior max. or 400 A main circuit breaker max

— 20 in. (508 mm) wide x 8.75 in. (223 mm) deep, 600 A main circuit breaker interior, factory-assembled only

• Box and interior mounting instructions are found in the information manual shipped with the interior.

• Interiors mount directly to studs in the MH box. Interior mounting brackets are not required.

• Type 2 enclosure includes a driphood.

— Surface-mounted trim only.

NOTE: Also available with knockouts / blank endwalls both ends.

Trims:

• Finished with gray baked enamel electrodeposited over cleaned phosphatized steel (ANSI 49).

• Flush or surface mounted (Type 2 surface only).

• Door has flush lock. Uses NSR-251 key.

• Directory card located on the inside of the door.

• Mono-Flat® trims on 100–225 A interiors mount to the interior trim with trim screws. Both trim screws and door hinges are concealed. Trims are not removable with the door closed and locked.

• Trims for 400–600 A interiors are vented and mount to the enclosure with trim screws. Door hinges are concealed.

• Optional hinged trims are available. These meet door-in-door specs.

Indoor Enclosures

Front (Type 1) Enclosure for 400–600 A Interiors

Mono-Flat Front (Type 1 Enclosure) for 100–250 A Interiors

Interior Mounts to Box Studs

MH Box

Table 21: Enclosure Types

Type Environment Protects Against

Type 1 Indoor Contact with the enclosed equipment, falling dirt

Type 2 Indoor Type 1, plus

• Dripping and light splashing of non-corrosive liquids

Type 3R Outdoor Type 2, plus

• Rain, snow, and sleet

Type 4 Indoor/outdoor

Type 3R, plus

• Circulating dust, lint, fibers and flyings

• Settling airborne dust, lint, fibers and flyings

• Windblown dust

• Hosedown and splashing water

Type 4X Indoor/outdoor Type 4, plus

• Corrosive agents

Type 5 Indoor Type 2, plus

• Settling airborne dust, lint, fibers, and flyings

Type 12 Indoor

Type 2, plus

• Circulating dust, lint, fibers, and flyings

• Settling airborne dust, lint, fibers, and flyings

• Oil and coolant seepage

Indoor Enclosure Accessories

Key NSR-251 (Catalog No. LP9618)

Concealed Hinge Used on 100–600 A Fronts

Flush Lock (standard) (Catalog No. PK4FL)

Sliding Vault Lock (optional) (Catalog No. PK5FL)

NQ Circuit Breaker Panelboards Typical Wiring Diagrams

12/2008

Typical Wiring Diagrams

S N

S N

S/N S/N

S N

S N

S N

S N

S N

S N

S N

S N

S N

S N

S/N S/N

100–225 A Main Lugs

400–600 A Main Lugs

100 A QOB Main Circuit Breaker 70–225 A Main Circuit Breaker Types QBL, JDL, HDL

400 A Main Circuit Breaker Type LAL

1-Phase, 3-Wire

100–225 A Main Lugs

3-Phase, 4-Wire

100 A QOB Main Circuit Breaker 70–225 A Main Circuit Breaker Types QBL, JDL, HDL

400–600 A Main Lugs 400 A Main Circuit Breaker

Type LAL

APPENDIX B

CONFIRMATION NOTICES

CONFIRMATION NOTICE NO. 1

Project: Repair (SUS) – Chilled Water Loop, GRPC: B1907 Location: Scott Air Force Base, Illinois A-E Contract: FA4407-14-0018 Construction Contract No.: VDYD: 11-1213

A pre-proposal meeting was held at Scott Air Force Base on August 18, 2015 to review Scope of Work Meeting was held at the Contracting Officer office, Bldg 52 . Present were the following:

Name Organization E-Mail Address Phone

TSgt Daniel Martinez 375CONS daniel.martinez.15@us.af.mil 618-256-9312 Gary Smith 375CES Gary.Smith.12@us.af.mil 618-256-4092 Dennis Verkamp BCCLT Verkamp@bcclt.com 812-423-4407

The following items were discussed.

1. The Project SOW was reviewed.

2. The existing Chiller shall be left in place with connections to allow it to go online in event the new underground chilled water supply become unavailable.

3. The capacity of the existing chilled system to supply adequate volume of chilled water to B1907 has been determined to be adequate. Gary pointed out that buildings previously served by the existing lines are no longer present.

4. The site was visited. The point of connect to the existing underground chilled water distribution system was identified as a manhole structure north of the sidewalk along the north side of the B1900

If there are any corrections, additions or modifications to the attached, please contact our office.

Respectfully submitted, Dennis R. Verkamp, P.E., L.S.

Project Manager

CONFIRMATION NOTICE NO. 2

Location: Scott Air Force Base, Illinois A-E Contract: FA4407-14-0018

A pre-proposal meeting was held at Scott Air Force Base on December 15, 2015 to review 35% Design Documents Meeting was held at the Contracting Officer office, Bldg 52 . Present were the following:

Name Organization E-Mail Address Phone

SSgt Joseph Dewese 375CONS Josepth.dewese@us.af.mil 618-256-9296 Gary Smith 375CES Gary.Smith.12@us.af.mil 618-256-4092 Dennis Verkamp BCCLT Verkamp@bcclt.com 812-423-4407

The following items were discussed.

1. The 35% documents were reviewed.

2. Gary requested that the pumping arrangement be reviewed at B1900. Are there VFD’s on the supply pumps at B1900. A decoupler at B1907 may be required

3. Regarding changing the Dx coil to Chilled Water in the AHU Unit serving the Global Reach Planning Center 2003 addition, the 35% documents were prepared with preliminary routing of the chilled water lines without detailed investigate within the existing building due to the late inclusion of this component into the project, .

4. Following the meeting, BCCLT visited the site with a HVAC shop personnel to review the AHU installation. The existing AHU is installed in ceiling cavity with minimal clearance for maintenance Replacement of the coil will likely require removal of parts of ceiling and lowering of unit for proper access..

If there are any corrections, additions or modifications to the attached, please contact our office.

CONFIRMATION NOTICE NO 3

Location: Scott Air Force Base, Illinois A-E Contract: FA4407-14-0018

Date: March 9, 2016

1. Prior to preparation of the 35% documents, extending chilled water piping to AHU serving the

Welcome Center addition constructed circa 2004, and replacing the existing Dx coil with a chilled water coil was added to the scope of the project..

2. Subsequently to the 35% submittal, operating and maintenance personnel have indicated that given the congested ceiling cavity space the AHU is installed, it is difficult to gain access to change filters, and should a significant mechanical issue arise with the unit, access would make repair work most difficult to accomplish in an efficient manner.

3. Request was made for BCCLT to investigate providing alternate AHU equipment to provide for better access to the unit. Given the tight ceiling cavity and presence of hard ceilings in areas, consideration of two smaller units was being considered. .

4. Drawings for the mechanical and plumbing construction have been provided to BCCLT thru Clark

Gordon. Clark is attempting to secure the existing Architectural, Structural and Electrical drawings from original A/E to assist in evaluation of potential equipment locations, particularly given the presence of hard ceilings..

5. Based on information currently available, BCCLT prepared the attached sketch of a potential concept of providing two AHU units to replace the one larger unit. A smaller unit is proposed in the same area as the existing larger AHU presently is located, with a second AHU in a new space carved out of a corner of the existing floor plan. This will require some ductwork modifications and hard ceiling removal and replacement in some areas..

6. This tentative concept attached was reviewed with Gary Smith this date. Gary indicated moving forward with the proposed concept is acceptable.

7. BCCLT will move forward on this basis without request for added fees, but has requested that the time to complete the 95% design be extended to April 5, 2016.

verkamp Polygon verkamp Polygon

J. Keith London, P.E.

William J. Hosmon, P.E., LEED BD+C James B. Brooks Carl J. Muensterman James E. Meadows, P.E., LEED AP Eric S. Nunning, P.E., LEED BD+C Richard D. Long, HFDP, CPD, CxA, GPD Shaminda M. Hubert, P.E., LEED AP Kris A. Campbell, CxA, LEED BD+C Samuel R. Schenk, CPD

Evansville, IN 47708 • 300 N.W. Second Street • 812/423-4407 Shelbyville, KY 40065 • 601 Main Street • 502/633-1506 Louisville, KY 40222 • 9100 Marksfield Road, Suite 200 • 502/708-1860 Vineland, NJ 08360 •1138 E. Chestnut Avenue, Bldg. 7A • 856/563-1225 Fort Wayne, IN 46818 • 4031 Transportation Drive • 260/918-3045 Indianapolis, IN 46241 • 2346 S. Lynhurst, Suite 404 • 317/968-0229

Professionals Fred E. Gilles, P.E.

Anthony V. Lisinicchia, P.E.

Daniel J. Simon, P.E., CxA

CONFIRMATION NOTICE NO. 4

Location: Scott Air Force Base, Illinois A-E Contract: FA4407-14-0018

Date: May 5, 2016

1. Meeting was held to review the 95% document submittal of the subject project. See attached list of attendees.

2. The buried chilled water lines should be the same type and have the same insulation as was provided in the building 44 chiller upgrade project.

3. Floorplans on the architectural drawing were a little light and could be difficult to see for production sets. Lineweights should be heavier for the final submittal.

4. The concept of providing two smaller AHU’s in lieu of one large AHU was accepted. One of the AHU’s will be located in the kitchen area where the existing AHU will be removed. The other AHU will be located in a new closet that will be constructed in the corner of the reception area. Closet finishes will be similar to the existing reception room finishes. The AHU’s will connect to the existing ductwork and will perform as one AHU. One thermostat and humidistat within the reception space is acceptable.

5. It was requested to add a balancing valve on the chilled water lines serving the building.

6. Chilled water piping will be routed across the roof and penetrate roof at each AHU. It was requested that the roof pipe stand be a simple stand in lieu of a roof curb and stand shown on the drawings. This will be changed for the 100% submittal.

7. The 95% submittal was accepted. The NTP to 100% was issued and BCCLT will move forward to complete by May 19, 2016.

James E. Meadows, Jr., P.E., LEED AP Senior Electrical Engineer

Typical Wiring Diagrams