ESBD_510890_1777408097042_G.6 Scope of Work.pdf

Provide all labor, materials, equipment, and supervision necessary to furnish and install a supplemental HVAC system at the Camp Bowie Readiness Center to address insufficient cooling in the first- and second-floor classrooms.

The work shall include installation of a system consistent with the basis of design (Daikin RXYA120AATJA or approved equal), including ceiling-mounted indoor fan coil units, refrigerant piping, condensate drain piping, controls, and all required accessories for a complete and operational system.

Provide all electrical work required to support the new system, including installation of a 60A, 3-pole disconnect in a NEMA 3R enclosure, a 45A, 3-pole breaker in Panel LP1, relocation of existing breakers as required, installation of new conduit and conductors, and updating the panel directory.

Provide equipment pads, wall and ceiling penetrations, and required firestopping. Patch and repair all disturbed finishes to match existing conditions.

All work shall be performed in accordance with the attached Garver recommendations with provided selections from Daikin VRV Selection Project Report, drawings (including Sheets E-801, E-104, and E-501), and specifications (including specifications from Division 23 and Division 26), and shall comply with applicable codes and manufacturer requirements.

The contractor shall provide system startup, testing, and commissioning, including verification that the system maintains classroom temperatures at or below 75°F under occupied conditions during peak summer design conditions consistent with local criteria.

Attachment G.6 - Scope of Work Page 1 of 97

Camp Bowie RC Classroom HVAC Scope of Work

Camp Bowie RC MM 14 August 2025

ISSUE:

Garver was informed by Mr. Gary Bonner that cooling in first and second floor Classrooms was insu%icient to maintain temperatures below 78 degrees when fully occupied.

RESEARCH/FINDINGS:

Garver investigated the issue and found that the HVAC load for this area was insu%icient for a fully occupied classroom as noted by Mr. Gary Bonner.

RECOMMENDATIONS:

It is recommended that additional cooling be added to supplement the additional personnel that will be in the space.

Mechanical: It is estimated the spaces need a 114 MBH unit to provide additional cooling.

The proposed unit is a Daikin RXYA120AATJA (see attached VRV Selection Project Report

Product/Data Cut Sheets). This will utilize ceiling-mounted fan coil units and an independent outdoor condenser. Refer to attached sheets E-801 & E-104.

Electrical: Provide power to new unit. Install 60A/3-pole disconnect in NEMA 3R enclosure on exterior wall beside unit. Ensure there is a minimum 36” of clearance in front of disconnect and 30” of horizontal clearance. Refer to sheet E-501 for clearance details.

Indoor unit shall be powered through outdoor unit. Provide 45A/3-pole breaker and install in

Panel LP1-49,51,53. Relocate existing 20A/1-pole breakers to Panel ‘T1’. New conductor and conduit size: 1"C-3#6, 1#10(G). Print a new typed panel directory for Panel ‘LP1’.

Site: Locate new 10-ton condenser and pad adjacent to the sidewalk outside Door 107A.

Refer to sheet E-801.

ATTACHMENTS:

VRV Product Selection Report (Product Data Cut Sheets)

Drawings:

• E-801 – First Floor Electrical (with markups & details)

• E-104 – Second Floor Electrical (with markups)

• E-501 – Electrical Details

Specifications:

• 23 81 29 – Variable Refrigerant Flow HVAC Systems

• 26 28 16 - Enclosed Switches and Circuit Breakers

• 26 05 19 - Low-Voltage Electrical Power Conductors and Cables

• 26 05 26 - Grounding and Bonding for Electrical Systems

• 26 05 29 - Hangers and Supports for Electrical Systems

• 26 05 33 - Raceways and Boxes for Electrical Systems

• 26 24 16 – Panelboards

### END OF REPORT; SEE ATTACHED DOCUMENTATION ###

Attachment G.6 - Scope of Work Page 2 of 97

The VRV Selection application is property of Daikin Europe N.V. Daikin Europe N.V. cannot be held liable for any inaccuracy, reliability of the outcome of the VRV Selection application. 1

VRV Selection Project Report

Report details

Produced on: 6/30/2025

Application version: 2025.6.25.1

Project details

Project name: Camp Bowie

Solution name: r32

Client Name:

Customer reference:

Quotation reference: Camp Bowie VRV

Project number: 713062/911528

Selection parameters of the indoor units can be found in the Engineering Data Books Selection parameters of the outdoor units can be found in the Engineering Data Books Only the data published in the data book are correct. This program uses close approximations of these data.

Attachment G.6 - Scope of Work Page 3 of 97

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Material list

Model Quantity Description RXYA120AATJA 1 VRV EMERION (208-230V 3ph)

FXFA18AAVJU 5 FXFA_AA - Round Flow Sensing Cassette

FXFA24AAVJU 1 FXFA_AA - Round Flow Sensing Cassette

KHRP26A22TA 2 Refnet branch piping kit

KHRP26A33TA 2 Refnet branch piping kit

KHRP26M72TUA 1 Refnet branch piping kit

BRC1NRV71 6 Navigation Remote Controller

BYCQ54GEFU 6 Standard Decorative Panel

Remarks

Note: Upon depletion of inventory of current REFNET models, order of current REFNET models will be substituted with the new upgraded -A models with no additional fee.

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Indoor unit details

Table of abbreviations

Abbreviation Description Name Logical name of the device

FCU Device model name

Tmp C Indoor conditions in cooling

Rq TC Required total cooling capacity

Max TC Available total cooling capacity

Rq SC Required sensible cooling capacity

Tevap Evaporating temperature of indoor unit coil

Max SC Available sensible cooling capacity

Tmp H Indoor temperature in heating

Rq HC Required heating capacity

Max HC Available heating capacity

Sound Sound pressure level low and high

PS Power supply (voltage and phases)

MCA Minimum Circuit Amps

MOP Maximum Overcurrent Protection

WxHxD WidthxHeightxDepth

Weight Weight of the device

Mrel Maximum Refrigerant Amount that can be released. Equals the total refrigerant charge in the system when there are no shut-off valves.

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HRU- 1 - RXYA120AATJA

Capacity data at conditions and connection ratio (94) as entered

Name FCU Cooling Tmp C Rq TC Max TC Rq SC Tevap Max SC

°F

(DBT/WBT)

BTU/h BTU/h BTU/h °F BTU/h

FC- 1 FXFA24AAVJU 78.8/65.5 n/a 22,957 n/a 42.8 16,270

FC- 2 FXFA18AAVJU 78.8/65.5 n/a 17,165 n/a 42.8 13,208

FC- 3 FXFA18AAVJU 78.8/65.5 n/a 17,165 n/a 42.8 13,208

FC- 4 FXFA18AAVJU 78.8/65.5 n/a 17,165 n/a 42.8 13,208

FC- 5 FXFA18AAVJU 78.8/65.5 n/a 17,165 n/a 42.8 13,208

FC- 6 FXFA18AAVJU 78.8/65.5 n/a 17,165 n/a 42.8 13,208

Name FCU Heating Tmp H Rq HC

Max HC

Min coil Max coil

°F BTU/h BTU/h in³ in³ FC- 1 FXFA24AAVJU 68.0 n/a 27,932 n/a n/a

FC- 2 FXFA18AAVJU 68.0 n/a 20,840 n/a n/a

FC- 3 FXFA18AAVJU 68.0 n/a 20,840 n/a n/a

FC- 4 FXFA18AAVJU 68.0 n/a 20,840 n/a n/a

FC- 5 FXFA18AAVJU 68.0 n/a 20,840 n/a n/a

FC- 6 FXFA18AAVJU 68.0 n/a 20,840 n/a n/a

Name FCU Room Sound PS MCA MOP WxHxD Weight dBA A inch lbs

FC- 1 FXFA24AAVJU 28 - 36 208-230V 1ph 0.5 15 A 33.1 x 9.7 x 33.1 51.0

FC- 2 FXFA18AAVJU 28 - 36 208-230V 1ph 0.4 15 A 33.1 x 9.7 x 33.1 42.0

FC- 3 FXFA18AAVJU 28 - 36 208-230V 1ph 0.4 15 A 33.1 x 9.7 x 33.1 42.0

FC- 4 FXFA18AAVJU 28 - 36 208-230V 1ph 0.4 15 A 33.1 x 9.7 x 33.1 42.0

FC- 5 FXFA18AAVJU 28 - 36 208-230V 1ph 0.4 15 A 33.1 x 9.7 x 33.1 42.0

FC- 6 FXFA18AAVJU 28 - 36 208-230V 1ph 0.4 15 A 33.1 x 9.7 x 33.1 42.0

Remarks

Reduced operational load

The sum of the required indoor unit capacities is 108,781BTU/h for cooling and 132,133BTU/h for heating. However, the outdoor unit selection uses reduced load values for cooling of 108,781BTU/h (=100%) and for heating of 111,000BTU/h

(=84%). Be aware that unrealistic reductions may lead to reduced comfort levels, different noise levels or increased wear and tear.

Outdoor vs. indoor position

Outdoor unit placed at the same level as the indoor units.

Required room measures

Note that this design is incomplete due to missing pipe lengths.

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Outdoor unit details

Table of abbreviations

Abbreviation Description Name Logical name of the device

Model Device model name

CR Connection ratio

Tmp C Outdoor conditions in cooling

WFR per module Water flow per outdoor unit module

CC Available cooling capacity

Rq CC Required cooling capacity

PIC Power input in cooling mode

InC Water inlet temperature in cooling mode

OutC Water outlet temperature in cooling mode

Tmp H Outdoor conditions in heating (dry bulb temp. / RH)

HC Available heating capacity (integrated heating capacity)

Rq HC Required heating capacity

PIH Power input in heating mode

InH Water inlet temperature in heating mode

OutH Water outlet temperature in heating mode

Piping Largest distance from indoor unit to outdoor unit

Bse Refr Standard factory refrigerant charge (16.4ft actual piping length) excluding extra refrigerant charge. For calculation of extra refrigerant charge refer to the databook

Ex Refr Extra refrigerant charge

PS Power supply (voltage and phases)

MCA Minimum Circuit Amps

MOP Maximum Overcurrent Protection

FLA Fan Motor Input

FCIDI Fan Compressor Inverter Drive Input

RLA Nominal Running Amps

WxHxD WidthxHeightxDepth

Weight Weight of the device

EER EER value at nominal condition

EER2 EER2 value at nominal condition

IEER IEER value at nominal condition

COP47 COP value at nominal condition and at ambient temperature of 47°F

COP17 COP value at nominal condition and at ambient temperature of 17°F

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Outdoor details

Name Model CR Cooling Heating Piping Tmp C CC Rq CC Tmp H HC Rq HC

% °F BTU/h BTU/h °F

(DBT/WBT)

BTU/h BTU/h ft

HRU- 1 RXYA120AATJA 94.2 84.2 112,510 108,781 32.0/30.7 111,229 24.6

Name Model PS MCA MOP WxHxD Weight A A inch lbs

HRU- 1 RXYA120AATJA 208V - 230V

3ph

39.9 45.0 48.8 x 65.4 x 30.1 725.3

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Sound Data

Name Model Sound Power Sound Pressure

Cooling Heating Cooling Heating dBA dBA dBA dBA

HRU- 1 RXYA120AATJA - - 61 -

Refrigerant information

Name Model Refrigerant type GWP

Base charge lbs

Extra charge lbs

Total refrigerant charge lbs

Total CO2 equivalent tonnes

HRU- 1 RXYA120AATJA R32 675 25.35 unknown unknown 7.76

The system(s) contain fluorinated greenhouse gases.

When extra refrigerant charge requirements are not calculated, TCO2 equivalent is calculated only considering the base refrigerant charge. Depending on the field pipe length extra refrigerant needs to be added which will increase the TCO2 equivalent.

For some outdoor units, piping lengths were not entered manually causing the determination of refrigerant amounts to be inaccurate.

HRU- 1 - RXYA120AATJA

Model Quantity Description RXYA120AATJA 1 VRV EMERION (208-230V 3ph)

FXFA18AAVJU 5 FXFA_AA - Round Flow Sensing Cassette

FXFA24AAVJU 1 FXFA_AA - Round Flow Sensing Cassette

KHRP26A22TA 2 Refnet branch piping kit

KHRP26A33TA 2 Refnet branch piping kit

KHRP26M72TUA 1 Refnet branch piping kit

BRC1NRV71 6 Navigation Remote Controller

BYCQ54GEFU 6 Standard Decorative Panel

Refrigerant information

Refrigerant type GWP Base charge lbs

Extra charge lbs

Total refrigerant charge lbs

Total CO2 equivalent tonnes R32 675 25.35 unknown unknown 7.76

The system(s) contain fluorinated greenhouse gases.

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When extra refrigerant charge requirements are not calculated, TCO2 equivalent is calculated only considering the base refrigerant charge. Depending on the field pipe length extra refrigerant needs to be added which will increase the TCO2 equivalent.

Piping lengths were not entered manually causing the determination of refrigerant amounts to be inaccurate.

Pipe capacities

Maximum Connection Index Diameters

71.9 3/8"x3/4"

95.9 3/8"x7/8"

119.9 1/2"x7/8"

251.9 1/2"x1 1/8"

259.9 5/8"x1 1/8"

379.9 5/8"x1 3/8"

> 379.9 3/4"x1 5/8"

Main pipe size up 5/8"x1 1/4"

Piping limitations

Description Value Maximum total length 3,280.8ft

Maximum longest actual length 541.3ft

Maximum longest equivalent length 623.4ft

Maximum main pipe length (size up of main pipe required if longer) -

Maximum length first branch to indoor unit(size up of intermediate pipes required if longer) 131.2ft

Maximum length first branch to indoor unit 295.3ft

Maximum length of indoor units to nearest branch 131.2ft

Maximum length difference between longest and shortest distance to indoor units 131.2ft

Maximum height difference, outdoor unit below indoor units 295.3ft

Minimum connection ratio, outdoor unit below indoor units -

Maximum height difference, outdoor unit above indoor units 295.3ft

Minimum connection ratio, outdoor unit above indoor units -

Maximum height difference in technical cooling, outdoor unit below indoor units 295.3ft

Maximum height difference in technical cooling, outdoor unit above indoor units 295.3ft

Maximum height difference between indoor units 131.2ft

Connection ratio range 50.0% - 200.0%

Refrigerant pipe diameters 5/8" (liquid) x 1 1/4" (gas)

Maximum equivalent length from BP unit or VRV indoor to VRV REFNET (size up of intermediate pipes required if longer)

Maximum equivalent length from BP unit or VRV indoor to VRV REFNET 295.3ft

Maximum actual length between CM and HM -

Maximum height difference between CM and HM -

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Piping diagrams

Piping HRU- 1

Piping

Warning: The pipe diameter values are purely indicative. Depending on the required pipe lengths, a different pipe diameter might be required.

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Wiring diagrams

Wiring HRU- 1

Remarks

P1P2 = AWG 18-2 is required - however always refer to local code for further information.

F1F2 IN/OUT = AWG 18-2 is required - however always refer to local code for further information

Note:

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Attachment G.6 - Scope of Work Page 16 of 97

UP

UP

J

J

J

OC

OC

OC

DL

OC

OC

OC OC

OC OC

CLASSROOM

CONFERENCE

CORRIDOR

107B

OFFICE

OFFICE

OFFICE

STORAGE

OFFICE

OFFICE

RH-3

RH-2

RH-1 RH-6

RH-5

RH-4

HVLS-1

HVLS-2

LP3-18LP3-20

LP3-21 LP3-17 LP3-19

BID OPTION #1

BID OPTION #5

BID OPTION #6

BID OPTION #7

TV

WP

TV

GFIGFI

TV

WP

GFIGFIGFI

GFI

GFI

GFI

GFI

GFIGFIGFIWP

WP

WP

WP

AC/GFI

AC/GFI

AC/GFI

AC/GFI

AC/GFI

AC/GFI

GFI

GFI

GFI GFI

WP

WP

TV

TV

WP

WP

EWC

TV

LP1-11

LP1-10

TV TV

LP1-19

LP1-20

LP1-36

M-21 M-22

M-23,25

M-24,26

CONNECT EXISTING

OVERHEAD DOOR TO

NEW PANEL 'LP1'.

SEE SHEET E-103

FOR CIRCUIT.

LV

A3 A3 A3

A1

A1

A1

A1

A1

A1

LV LV LV

LVLV

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REVIEWED BY:

DRAWN BY:

PROJECT NO.

ISSUE DATE:

PROJECT ARCHITECT:

TXARNG CFMO

DESIGNED BY:

This Record Drawing is a combination of the sealed architectural/engineering contract drawings for this project, modified by information furnished by the contractor reflecting changes in the Project made during construction.

The original sealed drawings are on file at the offices of

GARVER, LLC

RECORD DRAWINGS PREPARED

ON: 02/28/2025

THE SEAL THAT ORIGINALLY APPEARED

ON THIS DOCUMENT WAS AUTHORIZED

BY:

TEXAS NO: __________________ ON:

09/30/2022_________

ALTERATION OF A SEALED DOCUMENT

WITHOUT PROPER NOTIFICATION OF

THE RESPONSIBLE ENGINEER IS AN

OFFENSE UNDER THE TEXAS

ENGINEERING PRACTICE ACT.

E-801

FIRST FLOOR

ELECTRICAL

C A

M P

B O

W

IE

S. FEEZOR

G. FREY

J. JOYCE

02/28/2025 (RD)

R E

D

IN

E S

S C

E N

T E

R M

A J O

R M

A

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N A

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48170030

3/32" = 1'-0"

ELECTRICAL FIRST FLOOR

BID OPTION NOTES

BID OPTION 1

THIS WORK ITEM INVOLVES THE EXPANSION OF

CONFERENCE ROOM 108 AND THE ENCLOSING OF

THE CLASSROOM AREA IN ADMINISTRATION 107 TO

HOUSE 40 PERSONS UTILIZING THE EXISTING

DESKS.

BID OPTION 5

THIS WORK INCLUDES THE INSTALLATION OF A

CANOPY AT THE MAIN ENTRANCE. A FLAT (LOW

SLOPE) CANOPY WOULD BE INSTALLED AT THE

SECOND-FLOOR LEVEL AT THE ENTRANCE, EXTEND

THE WIDTH OF THE STOREFRONT AND

APPROXIMATELY 10 FEET FROM THE BUILDING

FACE. THE CANOPY ROOF WOULD BE

TRANSLUCENT PANELS AND BE SET ON STEEL

COLUMNS AND CONCRETE FOUNDATIONS.

BID OPTION 6

THE WORK INCLUDES THE INSTALLATION OF TWO

HVLS CEILING FANS, THE REPLACEMENT OF THE

OVERHEAD SECTIONAL DOOR WITH A COILING

DOOR, AND THE REPLACEMENT OF EXISTING

HEATING SYSTEMS FOR THE ASSEMBLY HALL.

BID OPTION 7

THE WORK INVOLVES THE CONVERSION OF

WOMEN'S LOCKER ROOM 137 INTO FIVE NEW

OFFICES AND A SMALL STORAGE ROOM. THE NEW

OFFICE CORRIDOR WILL CONNECT TO THE NORTH

WITH CORRIDOR 132 TO THE ASSEMBLY HALL AND

TO THE WEST WITH CORRIDOR 138 AND THE

ADMINISTRATION AREA.

BAR SCALE

SCALE: 3/32" = 1'-0"

4' 8' 20' 32'

NORTH

SAM FEEZOR

113619

Mechanical: It is estimated the spaces need a 114 MBH unit to provide additional cooling.

The proposed unit is a Daikin RXYA120AATJA (see attached cut-sheet). This will utilize ceiling-mounted fan coil units and an independent outdoor condenser.

Electrical: Provide power to new unit. Install 60A/3-pole disconnect in NEMA 3R enclosure on exterior wall beside unit. Ensure there is a minimum 36” of clearance in front of disconnect and 30” of horizontal clearance. Refer to sheet E-501 (attached for reference) for clearance details. Indoor unit shall be powered through outdoor unit. Provide 45A/3-pole breaker and install in Panel LP1-49,51,53. Relocate existing 20A/1-pole breakers to Panel ‘T1’. New conductor and conduit size: 1"C-3#6, 1#10(G). Print a new typed panel directory for Panel ‘LP1’.

SCOPE

WP

GRADE

COMPACTED SUBGRADE

8"

12"

TWO #4 REBAR - 5" FROM EDGE OF PAD

6" THICKNESS

6/6 WWF (TYPICAL) 2" FROM EDGE

NOT TO SCALE:

HVAC EQUIPMENT PAD DETAIL

10 ton outdoor condenser and pad

Indoor ceiling-mount fan coil unit

LP1-49,51,53

FIGURE 1

SECURE TO ROOF JOIST. SEE DETAIL

SHEET M- (TYP)

VIBRATION ISOLATOR. SEE SCHEDULE

AND DETAILS SHEET M- (TYP)

3/8"∅ THREADED

ROD (TYP)

HANGING BRACKETS (TYP)

INDOOR UNIT

SA

24V LEAD TO ROOM. T'STAT

PROVIDED BY UNIT MFGR.

4 WAY SUPPLY

AIR DISCHARGE. CENTER

RA GRILLE

CONTROL

CONNECTIONS

WEATHERPROOF FUSED

DISCONNECT. MOUNT

ADJACENT TO UNIT.

SECURE UNIT TO SLAB

SA

DUCTLESS MINI SPLIT CEILING CASSETTE INSTALLATION

NOT TO SCALE

Attachment G.6 - Scope of Work Page 17 of 97

DN DN

MEETING /

CLASSROOM

MEETING /

CLASSROOM

CORRIDOR

CLASSROOM

CLASSROOM

CLASSROOM

CLASSROOM

CLASSROOM

TELECOM

206DFC-4-1

DFC-4-2

DFC-4-3 DFC-4-4

DFC-5-1

DFC-6-1

DFC-6-2DFC-6-3

PANEL 'T2'

STORAGE

LP3-16

LP3-15

LP3-11

LP3-12

LP3-10LP3-9

LP3-8

TV TVTVTVTV

LP3-1

LP3-2

LP3-13

LP3-6

LP3-4

LP3-5

LP3-3

E-104

1 1 1 1

PANEL 'T2'

DFC-5-1

T2-3

T2-5

T2-1

T2-6,8

T2-2,4

L6-30R

REFER TO DETAIL

1 ON SHEET T-501

DFC-9-1

T1-7

T1-5

PANEL 'T1' T1-3T1-1

T1-2,4 T1-6,8

T1-14,16 T1-10,12

L6-30R

REFER TO DETAIL

1 ON SHEET T-501

(TYP.)

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REVIEWED BY:

DRAWN BY:

PROJECT NO.

ISSUE DATE:

PROJECT ARCHITECT:

TXARNG CFMO

DESIGNED BY:

This Record Drawing is a combination of the sealed architectural/engineering contract drawings for this project, modified by information furnished by the contractor reflecting changes in the Project made during construction.

The original sealed drawings are on file at the offices of

GARVER, LLC

RECORD DRAWINGS PREPARED

ON: 02/28/2025

THE SEAL THAT ORIGINALLY APPEARED

ON THIS DOCUMENT WAS AUTHORIZED

BY:

TEXAS NO: __________________ ON:

09/30/2022_________

ALTERATION OF A SEALED DOCUMENT

WITHOUT PROPER NOTIFICATION OF

THE RESPONSIBLE ENGINEER IS AN

OFFENSE UNDER THE TEXAS

ENGINEERING PRACTICE ACT.

E-104

SECOND FLOOR

ELECTRICAL

C A

M P

B O

W

IE

S. FEEZOR

G. FREY

J. JOYCE

02/28/2025 (RD)

R E

D

IN

E S

S C

E N

T E

R M

A J O

R M

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48170030

1/8" = 1'-0"

SECOND FLOOR POWER PLAN

BAR SCALE

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

4' 8' 16' 24'

GENERAL NOTES

1. PROVIDE NEW ELECTRICAL PANELS, STEP-

DOWN TRANSFORMERS, AND OTHER

INFRASTRUCTURE REQUIRED FOR A COMPLETE

NEW ELECTRICAL DISTRIBUTION SYSTEM.

REFER TO SHEET E-601 ONE-LINE DIAGRAM FOR

MORE INFORMATION.

2. PROVIDE NEW FEEDERS AND DISCONNECT

SWITCHES FOR NEW MECHANICAL EQUIPMENT.

3. EXISTING CONDUIT MAY BE CLEANED AND

REUSED WHERE IN GOOD CONDITION AND

SUITABLY LOCATED FOR NEW INSTALLATION

WORK PERIOD IF CONDUIT IS NOT SUITABLE FOR

REUSE, CONTRACTOR SHALL REMOVE AND

REPLACE WITH NEW.

4. PROVIDE NEW LIGHTNING PROTECTION SYSTEM

ON STRUCTURE, MEETING NFPA 70, 780, AND 96.

SYSTEM SHALL BE CONSTRUCTED TO MAINTAIN

ROOF WARRANTY AND CERTIFIED WITH UL

MASTER LABEL.

5. PROVIDE RIGID GALVANIZED STEEL FOR ANY

AREAS SUBJECT TO PHYSICAL DAMAGE,

INCLUDING SURFACE MOUNTED CONDUIT

INSTALLED BELOW 8FT IN DRILL HALL OR

TRAINING BAY.

KEYED NOTES

PROVIDE AN ACCESSIBLE ELECTRICAL

DISCONNECT AT EACH SPLIT SYSTEM INDOOR

UNIT. PROVIDE 208V/1PH CONNECTION TO

DFC UNITS REQUIRED FOR DCU 1 THROUGH 9.

REFER TO SHEET E-602 FOR CIRCUIT

LOCATIONS.

MOUNT RECEPTACLE ADJACENT TO TV

OUTLET AT 84" AFF.

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

2' 4' 8' 12

NORTHNORTH

1/4" = 1'-0"

COMM RM 206 - ENLARGED

1/4" = 1'-0"

COMM RM 144 - ENLARGED

SAM FEEZOR

113619

Indoor ceiling-mount fan coil unit

Attachment G.6 - Scope of Work Page 18 of 97

WORKING

SPACE

DEDICATED

ELECTRICAL

SPACE

WIDTH OF EQUIPMENT

(MINIMUM 30")

6'-6" MINUMUM

6'-0" MINUMUM

SPRINKLER PIPE

PERMITTED

DUCTWORK PERMITTED

DEPTH PER NEC

TABLE 110.26(A)(1)

WORKING

SPACE WORKING

SPACE

SIDE

VIEW

FRONT

VIEW

SIDE

VIEW

FRONT

VIEW

LUMINAIRE

PERMITTED

STRUCTURE

(TYP)

DEDICATED

ELECTRICAL

SPACE

DEDICATED

ELECTRICAL

SPACE

SUSPENDED

CEILING (TYP) SPRINKLER

PIPING (TYP)

ELECTRICAL

PANEL (TYP)

36"

DEPTH

6' -6

H

E

IG

H T

6' -6

H

E

IG

H T

30"

WIDTH DEPTH OF PANEL

PANEL

WIDTH OF

PANEL PANEL PANEL

30"

MINIMUM WIDTH

30"

MINIMUM WIDTH

30"

MINIMUM WIDTH

ELECTRICAL

ROOM

WORKING SPACE MAY BE MEASURED FROM

THE PANEL EDGE FOR ELECTRICAL

EQUIPMENT MOUNTED CLOSE TO WALLS

WORKING SPACE FOR PANELS MAY

OVERLAP THE WORKING SPACE

MASONRY BLOCK WALL

1-HOUR & 2-HOUR

GYPSUM WALL

BOARD

UL 1479 FIRE STOP

PUTTY FLUSH WITH

SURFACE

MINERAL WOOL

TYPICAL CONDUIT

1" MAXIMUM OPENING

AROUND CONDUIT

EL

EC

2X 4" MOUSE HOLES

BOX

COVER

EXTENSION

BOXES USED TO ROUTE FIRE ALARM & BUILDING MANAGEMENT

SYSTEM CONTROLS SHALL BE PROVIDED WITH COVERS THAT

INDICATE SERVICE.

3/8-16 UNIC HEX HEAD BOLT W/ TWO

WASHERS

1/2" X 4" PULL SLOT

.5 SKID RESISTANT

SURFACE

BOXES SHALL HAVE GASKETED HEAVY

DUTY BOLT DOWN COVER, AND OPEN

BOTTOM. PROVIDE A MINIMUM 12"

AGGREGATE BASE BELOW ALL BOXES.

IN-GRADE PULL BOXES SHALL BE PROVIDED ALONG

THE LENGTH OF ALL BELOW GRADE CIRCUITS.

SPACING SHALL BE SUCH THAT PULLING TENSION

REQUIRED IS WITHIN MANUFACTURER'S SPECIFIED

LIMITS. MAXIMUM SPACING BETWEEN PULL PULL

POINTS SHALL BE 150'. MINIMUM BOX SIZE SHALL BE

18"X24".

BOXES INSTALLED INSTALLED IN AREAS

THAT MAY RECEIVE VEHICULAR TRAFFIC

SHALL BE PROVIDED WITH TRAFFIC

RATED COVERS.

EXAMPLE

PANEL HEA

480/277V, 3 PHASE, 4 WIRE

EMERGENCY SYSTEM

FED BY HEDA-3, (100A/3P)

PANELBOARD COVER

PANEL IDENTIFICATION NOTES:

1.

2.

SIMILAR FOR DISCONNECTS, MOTOR CONTROLLERS, TRANSFORMERS, LIGHTING CONTROL PANEL, AUTOMATIC TRANSFER SWITCHES, ETC.

PROVIDE PANEL IDENTIFICATION FOR ALL NEW PANELS AND FOR ALL EXISTING REWORKED PANELS

THAT DO NOT CURRENTLY HAVE IDENTIFICATION TAGS IN PLACE.

I.D. NAMEPLATE WITH THE

FOLLOWING INFORMATION:

1. EQUIPMENT I.D. ABBREVIATION

2. VOLTAGE, PHASE, WIRES

3. EMERGENCY OR NORMAL SYSTEM

4. POWER SOURCE ORIGINATION AND

OVERCURRENT DEVICE SIZE.

H W

P

IP

E

GROUNDING ELECTRODE

CONDUCTOR SIZE PER

NEC 250.66

BONDING JUMPER

SIZE PER NEC 250.66

M E

TA

L

G A

S P

IP

E

M E

TA

L

A

IR

P

IP

E

S P

R

IN

K

LE

R P

IP

E

M E

TA

L

D R

A

IN

P

IP

E M

E

TA

L V

E N

T P

IP

E

BRANCH CIRCUIT EQUIPMENT GROUND

CONDUCTOR WHICH SUPPLIES ELECTRICAL

EQUIPMENT CONNECTED TO PIPING. SIZE PER

NEC 250.122 TO COMPLY WITH NEC 250.104 3B OR

CONNECT TO SERVICE GROUND

NOTE:

ALL BONDING CONNECTIONS SHALL BE MADE AT ACCESSIBLE LOCATIONS. USE

EXOTHERMIC CONNECTIONS WHERE CONNECTED TO BUILDING STEEL, RE-BAR,

AND GROUND RODS. USE CLAMP CONNECTIONS FOR PIPING SYSTEMS.

COPPER CONDUCTOR TO

BE INSULATED WHERE IN

CONTACT WITH CONCRETE

REINFORCED CONCRETE FOOTING

4"

DOM. COLD WATER

EFFECTIVELY GROUNDED

METAL BUILDING FRAME

EXOTHERMIC WELD

CONNECTION TYPICAL

1" OR LARGER METAL COLD WATER PIPING 10' MINIMUM,

UNDERGROUND IN DIRECT CONTACT WITH EARTH AND

ELECTRICALLY CONTINUOUS, BONDING CONNECTION

SHALL BE IN AN ACCESSIBLE LOCATION

4"6" 3/4" X 10' COPPER-CLAD STEEL

GROUNDING ROD NUMBER AS REQUIRED

#4 REBAR, 20' - 0" MINIMUM

TOTAL LENGTH - LOCATE

AS NEAR TO BOTTOM OF

FOOTING AS POSSIBLE

CADWELD "GEM" OR EQUAL

(BELOW VAPOR BARRIER)

NEUTRAL BUS

REFER TO POWER RISER

EQUIPMENT GROUND BUS

SERVICE DISCONNECT/CIRCUIT BREAKER

GROUNDING BUSHING WITH BONDING CONDUCTOR SAME

SIZE AS GROUNDING ELECTRODE CONDUCTOR

1" CONDUIT

M

E

TA

L H

V A

C D

U C

TS

BURNDY #GAR OR EQUAL (LOCATE WITHIN 5'-0" OF WATER SERVICE)

GROUNDING ELECTRODE

CONDUCTOR SIZE PER NEC 250.66

MAIN POWER GROUND BUS BAR CONNECTED TO GROUNDING TRIAD, BUILDING

STEEL, COLD WATER PIPE, LIGHTNING PROTECTION, GROUND RING CONNECTION,

ENCASED ELECTRODES, AND TELECOMMUNICATIONS TMGB.

BOND EXISTING METALLIC SERVICE PIPING TO NEW BUILDING GROUND.

24"MIN

3"

3"

3"

TYP.

600 VOLTS OR LESS

TYPICAL DITCHING DETAIL

SELECT COMPACT

BACKFILL LESS THAN 2"

SIEVE (TYPICAL)

SELECT COMPACT BACKFILL

LESS THAN 1" SIEVE

1" MIN.

SCH. 40 PVC

FINISH GRADE SOD WHERE

GRASS CONCRETE WHERE

CONCRETE (TYPICAL) TRENCH TAPE

(TYPICAL)

THIS UNDERGROUND CONDUIT

DETAIL APPLIES TO LOW

VOLTAGE SITE ELECTRICAL

ONLY. REFER TO ENTERGY

STANDARDS FOR

UNDERGROUND CONDUIT

REQUIRMENTS FOR UTILITY

OWNED CABLING.

#4 HORIZONTAL BAR @

9" CENTERS (TYPICAL)

TRENCH TAPE

FINISHED GRADE

1" BEVEL

BASE COVER

GROUT SHALL BE PACKED UNDER POLE

BASE TO INSURE FULL CONTACT WITH

FOUNDATION - PROVIDE DRAIN HOLE

THRU GROUTING

INSTALL GROUND LUG

AND #6 SDBC TO REBAR

INSTALL BELL TYPE

NYLON BUSHINGS

(TYPICAL)

INSTALL RIGID GAL.

STEEL ELBOWS

(TYPICAL)

SCHEDULE 80 PVC

#4 VERTICAL BAR @

9" CENTERS (TYPICAL)

THREADED ANCHOR BOLT PER

MANUFACTURER'S REQUIRMENTS.

THE FIRST AND LAST LIGHTING

STANDARDS SHALL HAVE A SPARE

CONDUIT STUBBED OUT 4' BEYOND

BASE FOR FUTURE EXTENSION.

LENGTH

"L"

DIAMETER

"W"

18"

24"

24"

18"

4'-0"

5'-0"

6'-0"

4'-6"

MAX. POLE

HEIGHT

30'-0"

20'-0"

15'-0"

10'-0"

36"

24"

"L"

"W"

ROUND

(5

-6

W

T

H S

T R

E E

T F

A X

-1

A

U S

T

IN

T

E X

A S

T E

X A

S M

IL

IT

A R

Y D

E P

A R

T M

E N

T C

O N

S T

R U

C T

IO

N

F

A C

IL

IT

IE

S

M A

N A

G E

M E

N T

O F

F

IC

E -C

F M

O

REVISED ISSUE DATES:

REVIEWED BY:

DRAWN BY:

PROJECT NO.

ISSUE DATE:

PROJECT ARCHITECT:

TXARNG CFMO

DESIGNED BY:

E-501

ELECTRICAL DETAILS

C A

M P

B O

W

IE

S. FEEZOR

G. FREY

J. JOYCE

09/30/22 (IFC)

R E

D

IN

E S

S C

E N

T E

R M

A J O

R M

A

IN

T E

N A

N C

E

21F00095

N.T.S.

ELECTRICAL CLEARANCE DETAIL

N.T.S.

ELECTRICAL PANEL CLEARANCE

N.T.S.

ELECTRICAL WORKING SPACE

N.T.S.

FIRE WALL PENETRATION

N.T.S.

IN-GRADE PULL BOX DETAIL

N.T.S.

PANEL IDENTIFICATION DETAIL

N.T.S.

SERVICE GROUNDING DETAIL

N.T.S.

UNDERGROUND CONDUIT DETAIL

1/8" = 1'-0"

LIGHTING POLE BASE DETAIL

9/30/2022

SHT. 128 OF 140

Attachment G.6 - Scope of Work Page 19 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 1

SECTION 238129 - VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: VRF HVAC systems.

1. Indoor, suspended, ceiling-mounted units.

2. Outdoor, air-source heat-pump units.

3. Heat recovery control units (HRCUs).

4. System controls.

5. System refrigerant and oil.

6. System condensate drain piping.

7. System refrigerant piping.

8. Metal hangers and supports.

9. Metal framing systems.

10. Fastener systems.

11. Miscellaneous support materials.

12. Piping and tubing insulation.

13. System control cable.

1.2 DEFINITIONS

A. Air-Conditioning System Operation: System capable of operation with all zones in cooling only.

B. Heat-Pump System Operation: System capable of operation with all zones in either heating or cooling, but not with simultaneous heating and cooling zones that transfer heat between zones.

C. Heat Recovery System Operation: System capable of operation with simultaneous heating and cooling zones that transfer heat between zones.

D. HRCU: Heat Recovery Control Unit. HRCUs are used in heat recovery VRF HVAC systems to manage and control refrigerant between indoor units to provide simultaneous heating and cooling zones. "Heat Recovery Control Unit" is the term used by ASHRAE for what different manufacturers term as branch circuit controller, branch selector box, changeover box, flow selector unit, mode change unit, and other such terms.

E. Low Voltage: As defined in NFPA 70 for circuits and equipment operating at less than 50 V or for remote-control, signaling power-limited circuits.

F. Plenum: A space forming part of the air distribution system to which one or more air ducts are connected. An air duct is a passageway, other than a plenum, for transporting air to or from heating, ventilating, or air-conditioning equipment.

G. Three-Pipe System Design: One high pressure refrigerant vapor line, one low pressure refrigerant vapor line, and one refrigerant liquid line connect a single outdoor unit or multiple

Camp Bowie RC Major Maintenance TMD PN 48170030 Brownwood, Texas HVAC ADDITIONS

Attachment G.6 - Scope of Work Page 20 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 2

manifold outdoor units in a single system to associated system HRCUs. One liquid line and refrigerant vapor line connect HRCUs to associated indoor units.

H. Two-Pipe System Design: One refrigerant vapor line and one refrigerant liquid line connect a single outdoor unit or multiple manifold outdoor units in a single system to associated system

HRCUs. One refrigerant liquid line and refrigerant vapor line connect HRCUs to associated indoor units. HRCUs used in two pipe systems act as an intermediate heat exchanger and include diverting valves and gas/liquid separators to move high and low pressure refrigerant between indoor units.

I. VRF: Variable refrigerant flow.

1.3 ACTION SUBMITTALS

A. Product Data: For VRF HVAC system components.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for indoor and outdoor units and for HRCUs.

2. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.

3. Include operating performance at design conditions and at extreme maximum and minimum outdoor ambient conditions.

4. Include description of system controllers, dimensions, features, control interfaces and connections, power requirements, and connections.

5. Include system operating sequence of operation in narrative form for each unique indoor-and outdoor-unit and HRCU control.

6. Include description of control software features.

7. Include total refrigerant required and a comprehensive breakdown of refrigerant required by each system installed.

8. Include refrigerant type and data sheets showing compliance with requirements indicated.

9. For system design software.

10. Indicate location and type of service access.

B. Shop Drawings: For VRF HVAC systems.

1. Include plans, elevations, sections, and mounting details.

2. Include details of equipment assemblies. Indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

3. Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment. Include adjustable motor bases, rails, and frames for equipment mounting.

4. Include diagrams and details of refrigerant piping and tubing showing installation requirements for manufacturer-furnished divided flow fittings.

5. Include diagrams for power, signal, and control wiring.

C. Delegated Design Submittals:

1. Include design calculations for selecting vibration isolators and for designing vibration isolation bases.

Attachment G.6 - Scope of Work Page 21 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 3

2. Include design calculations with corresponding diagram of refrigerant piping and tubing sizing for each system installed.

3. Include design calculations with corresponding floor plans indicating that refrigerant concentration limits are within allowable limits of ASHRAE 15 and governing codes.

4. Include calculations showing that system travel distance for refrigerant piping and controls cabling are within horizontal and vertical travel distances set by manufacturer.

Provide a comparison table for each system installed.

1.4 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For VRF HVAC systems to include in emergency, operation, and maintenance manuals.

B. Software and Firmware Operational Documentation:

1. Software operating and upgrade manuals.

2. Program Software Backup: On CD or DVD, USB media, or approved cloud storage platform, complete with data files.

3. Device address list.

4. Printout of software application and graphic screens.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications:

1. Nationally recognized manufacturer of VRF HVAC systems and products.

2. Shipped VRF HVAC systems with similar requirements to those indicated for a continuous period of five years within time of bid.

3. VRF HVAC systems and products that have been successfully tested and in use on at least three completed projects.

4. Having complete published catalog literature, installation, and operation and maintenance manuals for all products intended for use.

5. Having full-time in-house employees for the following:

a. Product research and development.

b. Product and application engineering.

c. Product manufacturing, testing, and quality control.

d. Technical support for system installation training, startup, commissioning, and troubleshooting of installations.

e. Owner training.

B. Factory-Authorized Service Representative Qualifications:

1. Authorized representative of, and trained by, VRF HVAC system manufacturer.

2. Demonstrated past experience with products being installed for period within three consecutive years before time of bid.

3. Demonstrated past experience on five projects of similar complexity, scope, and value.

a. Each person assigned to Project shall have demonstrated past experience.

Attachment G.6 - Scope of Work Page 22 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 4

4. Staffing resources of competent and experienced full-time employees that are assigned to execute work according to schedule.

5. Service and maintenance staff assigned to support Project during warranty period.

6. Product parts inventory to support ongoing system operation for a period of not less than five years after Substantial Completion.

7. VRF HVAC system manufacturer's backing to take over execution of Work if necessary to comply with requirements indicated. Include Project-specific written letter, signed by manufacturer's corporate officer, if requested.

C. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by VRF HVAC system manufacturer.

1. Each employee shall be certified by manufacturer for proper installation of systems, including, but not limited to, equipment, piping, controls, and accessories indicated and furnished for installation.

2. Installer certification shall be valid and current for duration of Project.

3. Retain copies of Installer certificates on-site and make available on request.

4. Each person assigned to Project shall have demonstrated past experience.

a. Demonstrated past experience with products being installed for period within three consecutive years before time of bid.

b. Demonstrated past experience on five projects of similar complexity, scope, and value.

D. ISO Compliance: System equipment and components furnished by VRF HVAC system manufacturer shall be manufactured in an ISO 9001 and ISO 14001 facility.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver and store products in a clean and dry place.

B. Comply with manufacturer's written rigging and installation instructions for unloading and moving to final installed location.

C. Handle products carefully to prevent damage, breaking, denting, and scoring. Do not install damaged products.

D. Protect products from weather, dirt, dust, water, construction debris, and physical damage.

1. Retain factory-applied coverings on equipment to protect finishes during construction and remove just prior to operating unit.

2. Cover unit openings before installation to prevent dirt and dust from entering inside of units. If required to remover coverings during unit installation, reapply coverings over openings after unit installation and remove just prior to operating unit.

E. Replace installed products damaged during construction.

Attachment G.6 - Scope of Work Page 23 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 5

1.7 WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace equipment and components that fail(s) in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Structural failures.

b. Faulty operation.

c. Deterioration of metals, metal finishes, and other materials beyond normal weathering and use.

2. Warranty Period:

a. For Compressor: Five year(s) from date of Substantial Completion.

b. For Parts, Including Controls: Five year(s) from date of Substantial Completion.

c. For Labor: Five year(s) from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 VRF HVAC SYSTEMS

A. Source Limitations: Obtain products from single source from single manufacturer including, but not limited to, the following:

1. Indoor and outdoor units, including accessories.

2. Controls and software.

3. HRCUs.

4. Refrigerant isolation valves.

5. Specialty refrigerant pipe fittings.

2.2 SYSTEM DESCRIPTION

A. Direct-expansion (DX) VRF HVAC system(s) with variable capacity in response to varying cooling and heating loads. System shall consist of multiple indoor units, HRCUs, outdoor unit(s), piping, controls, and electrical power to make complete operating system(s) complying with requirements indicated.

1. Two-pipe system design.

2. System(s) operation, heat pump or heat recovery as indicated on Drawings.

3. Each system with one refrigerant circuit shared by all indoor units connected to system.

B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

C. AHRI Compliance: System and equipment performance certified according to AHRI 1230.

D. ASHRAE Compliance:

Attachment G.6 - Scope of Work Page 24 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 6

1. ASHRAE 15: For safety code for mechanical refrigeration.

2. ASHRAE 62.1: For indoor air quality.

3. ASHRAE 135: For control network protocol with remote communication.

4. ASHRAE/IES 90.1 Compliance: For system and component energy efficiency.

E. UL Compliance: Comply with UL 1995.

2.3 PERFORMANCE REQUIREMENTS

A. Delegated Design: Engage a qualified professional specialist, as defined in Section 014000

"Quality Requirements," to design complete and operational VRF HVAC system(s) complying with requirements indicated.

1. Provide system refrigerant calculations.

a. Refrigerant concentration limits shall be within allowable limits of ASHRAE 15 and governing codes.

b. Indicate compliance with manufacturer's maximum vertical and horizontal travel distances. Prepare a comparison table for each system showing calculated distances compared to manufacturer's maximum allowed distances.

2. Include a mechanical ventilation system and gas detection system as required to comply with ASHRAE 15 and governing codes.

3. System Refrigerant Piping and Tubing:

a. Arrangement: Arrange piping to interconnect indoor units, HRCUs, and outdoor unit(s) in compliance with manufacturer requirements and requirements indicated.

b. Routing: Conceal piping above ceilings and behind walls to maximum extent possible.

c. Sizing: Size piping system, using a software program acceptable to manufacturer, to provide performance requirements indicated. Consider requirements to accommodate future change requirements.

4. System Controls:

a. Network arrangement.

b. Network interface with other building systems.

c. Product selection.

d. Sizing.

B. Service Access:

1. Provide and document service access requirements.

2. Locate equipment, system isolation valves, and other system components that require service and inspection in easily accessible locations. Avoid locations that are difficult to access if possible.

3. Where serviceable components are installed behind walls and above inaccessible ceilings, provide finished assembly with access doors or panels to gain access. Properly size the openings to allow for service, removal, and replacement.

Attachment G.6 - Scope of Work Page 25 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 7

4. If less than full and unrestricted access is provided, locate components within an 18-inch reach of the finished assembly.

5. Where ladder access is required to service elevated components, provide an installation that provides for sufficient access within ladder manufacturer's written instructions for use.

6. Comply with OSHA regulations.

C. System Design and Installation Requirements:

1. Design and install systems indicated according to manufacturer's recommendations and written instructions.

2. Where manufacturer's requirements differ from requirements indicated, contact Architect for direction. The most stringent requirements should apply unless otherwise directed in writing by Architect.

D. Isolation of Equipment: Provide isolation valves to isolate each HRCU, indoor unit and outdoor unit for service, removal, and replacement without interrupting system operation.

E. System Capacity Ratio: The sum of connected capacity of all indoor units shall be within the following range of outdoor-unit rated capacity:

1. Not less than 60 percent.

2. Not more than 100 percent.

3. Range acceptable to manufacturer.

F. System Turndown: Stable operation down to 20 percent of outdoor-unit capacity.

G. System Auto Refrigerant Charge: Each system shall have an automatic refrigerant charge function to ensure the proper amount of refrigerant is installed in system.

H. Outdoor Conditions:

1. Suitable for outdoor ambient conditions encountered.

a. Design equipment and supports to withstand wind loads of governing code.

I. Sound Performance: Sound levels generated by operating HVAC equipment shall be within requirements indicated.

1. Indoor: Within design guidelines of "2015 ASHRAE HANDBOOK- HVAC

Applications.

2. Outdoor: Within ordinance of governing authorities.

J. Thermal Movements: Allow for controlled thermal movements from ambient, surface, and system temperature changes.

K. Capacities and Characteristics: As indicated on Drawings.

Attachment G.6 - Scope of Work Page 26 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 8

2.4 INDOOR, SUSPENDED, CEILING-MOUNTED UNITS

A. Description: Factory-assembled complete unit with components, piping, wiring, and controls required for mating to piping, power, and controls field connections.

B. Cabinet:

1. Material: Painted steel, or coated steel frame covered by a plastic cabinet, with an architectural acceptable finish suitable for tenant occupancy on exposed surfaces.

2. Insulation: Manufacturer's standard internal insulation to provide thermal resistance and prevent condensation.

3. Mounting: Manufacturer-designed provisions for field installation.

4. Internal Access: Removable panels of adequate size for field access to internal components for inspection, cleaning, service, and replacement.

C. DX Coil Assembly:

1. Coil Casing: Aluminum, galvanized, or stainless steel.

2. Coil Fins: Aluminum, mechanically bonded to tubes, with arrangement required by performance.

3. Coil Tubes: Copper, of diameter and thickness required by performance.

4. Expansion Valve: Electronic modulating type with linear or proportional characteristics.

5. Internal Tubing: Copper tubing with brazed joints.

6. Internal Tubing Insulation: Manufacturer's standard insulation, of thickness to prevent condensation.

7. Field Piping Connections: Manufacturer's standard.

8. Factory Charge: Dehydrated air or nitrogen.

9. Testing: Factory pressure tested and verified to be without leaks.

D. Drain Assembly:

1. Pan: Non-ferrous material, with bottom sloped to low point drain connection.

2. Condensate Removal: Gravity.

a. If a floor drain is not available at unit, provide unit with field-installed condensate pump accessory.

3. Field Piping Connection: Non-ferrous material.

E. Fan and Motor Assembly:

1. Fan(s):

a. Direct-drive arrangement.

b. Single or multiple fans connected to a common motor shaft and driven by a single motor.

c. Fabricated from non-ferrous components or ferrous components with corrosion protection finish.

d. Wheels statically and dynamically balanced.

2. Motor: Brushless dc or electronically commutated with permanently lubricated bearings.

Attachment G.6 - Scope of Work Page 27 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 9

3. Motor Protection: Integral protection against thermal, overload, and voltage fluctuations.

4. Speed Settings and Control: Two (low, high), three (low, medium, high), or more than three speed settings or variable speed with a speed range of least 50 percent.

5. Vibration Control: Integral isolation to dampen vibration transmission.

F. Filter Assembly:

1. Access: Front, to accommodate filter replacement without the need for tools.

2. Washable Media: Manufacturer's standard filter with antimicrobial treatment.

G. Discharge-Air Grille Assembly: Mounted in front of unit cabinet.

1. Discharge Pattern: One-way throw.

H. Return-Air Grille Assembly: Manufacturer's standard.

I. Outdoor Air Ventilation Connection: Sheet metal knockout for optional connection to outdoor air ventilation duct.

J. Unit Accessories:

1. Remote Room Temperature Sensor Kit: Wall-mounted, hardwired room temperature sensor kit for use in rooms that do not have room temperature measurement.

2. Condensate Pump: Integral reservoir and control with electrical power connection through unit power.

K. Unit Controls:

1. Enclosure: Manufacturer's standard, and suitable for indoor locations.

2. Factory-Installed Controller: Configurable digital control.

3. Factory-Installed Sensors: Unit inlet air temperature.

4. Field-Customizable I/O Capability:

a. Digital Inputs: Two for use in customizable control strategies.

b. Digital Outputs: Two for use in customizable control strategies.

5. Features and Functions: Self-diagnostics, time delay, auto-restart, auto operation mode]

[, manual operation mode.

6. Communication: Network communication with other indoor units and outdoor unit(s).

7. Cable and Wiring: Manufacturer's standard with each connection labeled and corresponding to a unit-mounted wiring diagram.

8. Field Connection: Manufacturer's standard with each connection labeled and corresponding to a unit-mounted wiring diagram.

L. Unit Electrical:

1. Enclosure: Manufacturer's standard, and suitable for indoor locations.

2. Field Connection: Single point connection to power entire unit and integral controls.

3. Disconnecting Means: Factory-mounted circuit breaker or switch, complying with

NFPA 70.

4. Control Transformer: Manufacturer's standard. Coordinate requirements with field power supply.

Attachment G.6 - Scope of Work Page 28 of 97

VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS 238129 - 10

5. Wiring: Manufacturer's standard with each connection labeled and corresponding to a unit-mounted wiring diagram.

6. Raceways: Enclose line voltage wiring in [metal ]raceways to comply with NFPA 70.

2.5 OUTDOOR, AIR-SOURCE HEAT-PUMP UNITS

A. Description: Factory-assembled and -tested complete unit with components, piping, wiring, and controls required for mating to piping, power, and controls field connections.

1. Specially designed for use in systems with either all heating or all cooling demands, but not for use in systems with simultaneous heating and cooling.

2. Systems shall consist of one unit, or multiple unit modules that are designed by variable refrigerant system manufacturer for field interconnection to make a single refrigeration circuit that connects multiple indoor units.

3. All units installed shall be from the same product development generation.

B. Cabinet:

1. Galvanized steel and coated with a corrosion-resistant finish.

a. Coating with documented salt spray test performance of 1000 hours according

ASTM B117 surface scratch test (SST) procedure.

2. Mounting: Manufacturer-designed provisions for field installation.

3. Internal Access: Removable panels or hinged doors of adequate size for field access to internal components for inspection, cleaning, service, and replacement.

C. Compressor and Motor Assembly:

1. One or more positive-displacement, direct-drive and hermetically sealed scroll compressor(s) with inverter drive and turndown to 15 percent of rated capacity.

2.…