Addendum Six.pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-150-25

FOR: Middleton Hall Dormitory Renovations & HVAC Bid Package 2 & 3 Kentucky School for the Deaf Danvillie, Kentucky

DATE: January 2, 2025

RFB-785-2500000308

ADDENDUM NO. Six (6)

BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING

UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.

Item 1: Refer to addendum to be distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and/or drawings.

END OF ADDENDUM

Invitation to Bid No. RFB-150-25 For: Middleton Hall Dormitory Renovations & HVAC Bid Package 2 & 3 Kentucky School for the Deaf Danvillie, Kentucky

Susan Ward, Statewide Procurement Analyst II Division of Engineering and Contract Administration

ADDENDUM No. 6

ADDENDUM NO. 6

TO THE DRAWINGS AND SPECIFICATIONS

FOR THE

KSD Middleton Hall Dorm Renovation

Danville, Kentucky

Account No. 540-CALK-SD19-00

RTA 23025

December 30, 2024

To All Plan Holders of Record:

This Addendum modifies bid documents dated 11/18/2024 for the above project and shall become part of said documents in the preparation of proposals and execution of work of the subject project.

General:

1. Clarifications regarding Bid Pack #1 (previously bid separate for early material procurement):

a) Contractor shall review and be familiar with the scope of work delineated in Bid Pack #1. Scope is procurement of the generator, automatic transfer switch, and primary building switchgear. Bid

Pack #1 requires that contractor to furnish and deliver said materials for installation by contractor awarded in this contract. Contractor shall coordinate with all parties in Bid pack 1.

b) For REFERENCE ONLY the following items were included in Bid Pack #1:

i) 1600A, 208Y/120V/3P/4W, Switchboard

ii) (2) ATS o 300A o 100A

iii) 100 kW / 125 kVA diesel Generator (w/ 350A breaker)

iv) Generator connection cabinet

c) For REFERENCE ONLY refer to attach Drawing Sheet E1.0 Electrical Power Riser Diagram from Bid Pack #1. Hatched items are being provided by Bid Pack #1.

Specifications:

1. None.

Drawings:

1. Refer to Drawing Sheet A1.01 – Ground & First Floor Plan.

a) Refer to Plan Notes.

i) Add ‘Plan Note 15’ as follows:

‘Patch and repair wall as required to install new sanitary piping within the walls. Maintain all fire ratings. Refer to MEP drawings for additional information on location.”

b) Refer to detail A/A1.01.

i) Add ‘Plan Note 15’ to the following rooms:

Bed/Study 004B, Storage 006, & Living Room 007

2. Refer to Drawing Sheet A7.01 – Ground & First RCP Plan.

a) Refer to RCP Notes.

i) Add ‘RCP Note #9’ as follows:

“Patch and repair existing exterior vinyl soffit panel as required. Refer to MEP drawings for additional information on demolition and installation of new mechanical grilles.”

b) Refer to Detail A/A7.01.

i) Add ‘RCP Note #9’ to the exterior soffit outside of Vestibule VA.

Mechanical, Electrical, & Plumbing:

1. Refer to attached Addendum No. 6 from CMTA, Inc.

END OF ADDENDUM

100% SERVICE

RATED

208Y/120V/3Φ/4W

B1

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

B2

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

B3

200A

NORMAL

PANEL

208Y/120V/3Φ/4W

B4

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

B5

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

B6

400A

NORMAL

PANEL

208Y/120V/3Φ/4W

B7

100A

NORMAL

PANEL

208Y/120V/3Φ/4W

A1

400A

NORMAL

PANEL

208Y/120V/3Φ/4W

A2

200A

NORMAL

PANEL

208Y/120V/3Φ/4W

A3

200A

NORMAL

PANEL

208Y/120V/3Φ/4W

AA

200A

NORMAL

PANEL

208Y/120V/3Φ/4W

EXT. LTG.

100A

NORMAL

PANEL

208Y/120V/3Φ/4W

C1

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

C2

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

C3

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

C4

300A

NORMAL

PANEL

208Y/120V/3Φ/4W

C5

200A

NORMAL

PANEL

2ND FLOOR

1ST FLOOR

GROUND FLOOR

400A/3P

DWHP-1

MAIN SERVICE SWITCHBOARD 'MSB'

1600A/208Y/120V, 3Φ, 4W

UTILITY

1000 kVA

TRANSFORMER

300A/3P

300A/3P

200A/3P

300A/3P

300A/3P

EXISTING

100A/3P

200A/3P

200A/3P

200A/3P

200A/3P

400A/3P 60A/3P

SHUNT TRIP

1 1 1 1 1 1

11 111

N

G

#500 kcmil

#500 kcmil

SERVICE

GROUND

1 1 1

NEW

ELEVATOR

208Y/120V/3Φ/4W

E

300A

EMERGENCY

PANEL

SPD

B

208Y/120V/3Φ/4W

LS

100A

EMERGENCY

PANEL

SPD

A

N EE N

E-G 300A

ATS

N EE N

E-LS

100A

ATS

208Y/120V/3Φ/4W

100kW/125kVA

EMERGENCY

DIESEL

GENERATOR

350A/3P

300A/3P 100A/3P

5 5

GEN-A

#500 Kcmil TO THREE

(3) GROUND RODS.

MALE CONNECTOR

FOR PORTABLE

GENERATOR

GCC

PROVIDE GROUNDING STUD AT

"GCC" FOR TEMPORARY

GENERATOR

A

A

B

C

SPD

A

PROVIDE ILSCO

MECHANICAL TAPS

DELAY

TRANSITION,

4-POLE

OPEN

TRANSITION,

4-POLE

SPD SPD SPD SPD SPD

SPD

SPDSPDSPDSPDSPDSPD

SPD

SPD SPD SPD

1600A/3P

M

ELEVATOR

CONTROLLER

MAINUTILTIY / PULL

100%

RATED

BMGB

REFER TO GROUNDING

DETAIL FOR ADDITIONAL

REQUIREMENTS

B

B

B

B B

B

175A/3P

C

A

E

E

A

DD

DD

DDDD

F

GEN 1

DISTDIST

BID PACK LEGEND

BID PACKAGE - PART 1

(EARLY EQUIPMENT)

BID PACKAGE - PART 2 NO HATCH

1. PROVIDE NEW SPD (SURGE PROTECTION DEVICE) CATEGORY #B UNIT FOR PANELBOARD AS SPECIFIED (DIVISION 26 SPECIFICATIONS). PROVIDE UNIT INTEGRAL TO PANELBOARD. PROVIDE WITH EVENT COUNTER.

2. PROVIDE THREE (3) SECTION 1600A/120/208V/3PH/4W SWITCHBOARD RATED AT 100KAIC MIN., SQUARE "D" QED-2 STYLE, OR EQUAL, WITH THE FOLLOWING SECTIONS:

A. UTILITY SECTION: 42" WIDE BY 36" DEEP SECTION SHALL MEET ALL REQUIREMENTS OF THE LOCAL UTILITY

COMPANY. SUBMIT TO UTILITY COMPANY (LG&E) PRIOR TO SUBMISSION OF SHOP DRAWINGS TO THE ENGINEER.

B. MAIN SECTION: 36" WIDE BY 36" DEEP SECTION SHALL HOUSE 1600A/3P, SERVICE ENTRANCE 100% RATED FULL-

FUNCTION, ELECTRONIC TRIP, MOLDED CASE "MICRO-LOGIC", MAIN CIRCUIT BREAKER WITH DIGITAL VOLT/AMMETER AND MAINTENANCE ARC ENERGY REDUCTION SWITCH AND GROUND FAULT PROTECTION. SECTION SHALL HOUSE

MAIN SWITCHBOARD SPD DEVICE AS SPECIFIED.

C. DISTRIBUTION SECTION(S): TWO (2) 1600A SECTIONS WITH MINIMUM 117" OF MOUNTING SPACE FOR CIRCUIT

BREAKERS. EACH SECTION IS 36" WIDE BY 36" DEEP.

3. PROVIDE A PARALLEL CONNECTED SURGE SUPRESION DEVICE (SPD). UNIT SHALL BE MOUNTED AT WIRE TROUGH.

PROVIDE FUSED 3P/60AMP DISCONNECT. MINIMIZE LENGTH OF CONDUCTORS.

4. PROVIDE NEMA 1 WIRE TROUGH WITH PIANO HINGED COVER, SIZED PER NEC. PROVIDE WITH ILSCO TAPS.

5. PROVIDE 100% RATED MOLDED CASE CIRCUIT BREAKER IN NEMA 1 ENCLOSURE.

6. PROVIDE CONTROL WIRING PER MANUFACTURER'S REQUIREMENTS IN 2" CONDUIT. REFER TO FLOOR PLANS FOR

GENERATOR ANNUNCIATOR LOCATION.

7. GROUND AND NEUTRAL BARS SHALL BE BONDED AT GENERATOR AS SEPARATELY DERIVED SYSTEM. REFER TO FLOOR

PLANS FOR GENERATOR BONDING DETAIL.

8. PROVIDE 400 AMP 3-WAY MANUAL TRANSFER SWITCH WITH CAPABILITY OF BEING SIMULTANEOUSLY CONNECTED TO BOTH A LOAD BANK AND ATS'S. REFER TO SPECIFICATION FOR ADDITIONAL REQUIREMENTS. PROVIDE WITH:

A. PHASE MONITOR

B. UILITY 'ON' INDICATOR (UNIT MOUNTED)

C. TERMINAL STRIP FOR REMOTE GENERTATOR START, REMOTE MONITORING, ETC,

D. 20AMP, 120VAC RECEPTACLE FOR BATTERY CHARGING

E. 30AMP, 240VAC RECEPTACLE FOR HEATERS

F. SIGNAGE INDICATING BONDING/GROUNDING REQUIREMENTS

G. GENERATOR ANNUNCIATOR

9. PROVIDE 400AMP RATED ESL SERIES #3181-M, 208Y/120-4-65KAIC-3R-(4)PILOT LIGHTS-SPD-20A, 120V GFCI DUPLEX 30A, 120V GFCI OUTLET.

10. PROVIDE A PARALLEL CONNECTED SURGE SUPPRESSION DEVICE (SPD). UNIT SHALL BE MOUNTED IN DISTRIBUTION

PANELBOARD. PROVIDE WITH EVENT COUNTER.

POWER RISER TAG NOTES:

A. PROVIDE FOUR (4) #3 AWG AND ONE (1) #8 AWG GROUND IN 1-1/4" CONDUIT.

B. PROVIDE FOUR (4) #3/0 AND ONE (1) #6 AWG GROUND IN 2" CONDUIT.

C. PROVIDE FOUR (4) #2/0 AND ONE (1) #6 AWG GROUND IN 2" CONDUIT.

D. PROVIDE FOUR (4) #350 AND ONE (1) #4 AWG GROUND IN 3" CONDUIT.

E. PROVIDE TWO SETS [FOUR (4) #3/0 AND ONE (1) #3 AWG GROUND IN 2" CONDUIT].

F. PROVIDE FOUR (4) #6 AND ONE (1) #10 AWG GROUND IN 1" CONDUIT.

POWER RISER FEEDER SCHEDULE:

FINANCE AND ADMINISTRATION CABINET

DEPARTMENT FOR FACILITIES AND SERVICES SUPPORT

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

FRANKFORT, KENTUCKY

ACCOUNT NO.

DECA LOG #

DECA REVIEWED

FOR INTENT ONLY

DRAWING NO.

COMMONWEALTH OF KENTUCKY

101 old lafayette avenue lexington, kentucky 40502 p 859.254.4018 Copyright 2024

PHASE

DESCRIPTION OF REVISIONS DATE

RTA

REVISION HISTORY OF THIS DRAWING

DESCRIPTION OF REVISIONS DATE

A & E FILE NO.

DRAWING DATE

DRAWN BY

CHECKED BY

RTA DATE

DRAWING INFORMATION

rosstarrant architects

540-CALK-SD19-00

E1.0

Middleton Dormitory Renovation

ELECTRICAL POWER RISER DIAGRAM

Kentucky School for the Deaf

540-CALK-SD19-00

BKB

GTW

23025

10/25/24

GENERAL NOTES (RISER):

A. ALL NEW CONDUCTORS SHALL BE COPPER (REFER TO SPECIFICATIONS FOR TYPES).

B. REFER TO DETAILS FOR TYPICAL PANEL LABELING REQUIREMENTS.

C. REFER TO PANEL SCHEDULES FOR EQUIPMENT ACCESSORIES, BREAKER SIZES, AND RELATED INFORMATION.

D. AS PART OF THIS CONTRACT, PROVIDE A COMPREHENSIVE ARC FLASH HAZARD ANALYSIS FOR ALL POWER DISTRIBUTION DEVICES ON THIS

PROJECT. PROVIDE ALL LABELS, WARNING SIGNAGE, ETC. PER NPFA-70E AND OSHA REQUIREMENTS. ALL LABELS SHALL BE AFFIXED PRIOR TO FINAL ELECTRICAL INSPECTIONS. THE ELECTRICAL CONTRACTOR SHALL PROVIDE ALL DATA TO THE SWITCHGEAR MANUFACTURER NO LATER THAN TWO WEEKS FOLLOWING AWARD OF PROJECT AS REQUIRED TO COMPLETE THE ANALYSIS. STUDY SHALL INCLUDE ALL EXISTING EQUIPMENT IN EXISTING FACILITY. REFER TO SPECIFICATION SECTION 260573, "ELECTRICAL STUDIES", FOR ADDITIONAL

REQUIREMENTS.

E. AS PART OF THIS CONTRACT, PROVIDE A COORDINATION/FAULT CURRENT STUDY FOR BREAKERS ON THIS PROJECT. STUDY SHALL INCLUDE ALL MAINS AND FEEDERS SHOWN ON THESE DRAWINGS AND SHALL EXTEND TO THE MAIN LUGS OR BREAKER OF THE FURTHEST DEVICE DOWNSTREAM. THE EMERGENCY POWER SYSTEMS SHALL BE SELECTIVELY COORDINATED TO 0.1 SECONDS THROUGH BOTH THE UTILITY AND GENERATOR DERIVED SYSTEMS. EQUIPMENT PRESENTLY SHOWN IS THE BASIS OF DESIGN - OTHER MANUFACTURERS LISTED AS EQUALS MAY NEED TO MODIFY LAYOUTS AND EQUIPMENT IN ORDER TO MEET THIS REQUIREMENT. ALL MANUFACTURERS MUST UTILIZE ELECTRONIC TRIP BREAKERS WITH ADJUSTABLE TRIP SETTINGS WHERE REQUIRED TO MEET SELECTIVE COORDINATION REQUIREMENTS.

WHERE MODIFICATION TO EQUIPMENT INDICATED ON THESE DRAWINGS IS REQUIRED IN ORDER TO ACHIEVE COORDINATION, THESE CHANGES SHALL BE CLEARLY NOTED IN THE STUDY. WHERE ACTUAL BREAKER AMPACITIES ARE INCREASED TO ACHIEVE COORDINATION, THE CONTRACTOR IS RESPONSIBLE FOR INCLUDING ALL COST ASSOCIATED WITH THESE CHANGES IN THEIR BID (INCLUDING INCREASES IN FEEDER SIZES). SUBMIT STUDY AS SHOP DRAWING TO ENGINEER PRIOR TO ORDERING ANY POWER DISTRIBUTION EQUIPMENT. ANY EQUIPMENT SUBMITTED PRIOR TO SUBMISSION OF THIS STUDY WILL NOT BE REVIEWED. THE ELECTRICAL CONTRACTOR SHALL PROVIDE ALL DATA TO THE SWITCHGEAR MANUFACTURER NO LATER THAN TWO WEEKS FOLLOWING AWARD OF PROJECT AS REQUIRED TO COMPLETE THE ANALYSIS. REFER TO SPECIFICATION SECTION 260573, "ELECTRICAL STUDIES", FOR ADDITIONAL REQUIREMENTS.

F. AS PART OF THIS CONTRACT, PROVIDE AN IEEE 1547 CERTIFICATION.

G. CONTRACTOR SHALL INSTALL SEPARATE CONDUITS, PULL BOXES, ETC. FOR EMERGENCY POWER AND NORMAL POWER FEEDERS PER NEC

FOR COMPLETE SEPARATION OF POWER SERVICES.

H. THERMAL SCAN OF PANEL AND LARGE EQUIPMENT TERMINATIONS SHALL BE PROVIDED TO OWNER AT COMPLETION OF PROJECT.

CONTRACTOR TO CORRECT DIFICIENCIES DISCOVERED AT NO ADDITIONAL COST TO CONTRACT.

I. POWER INTERRUPTIONS SHALL BE PLANNED WITH TWO WEEK MINIMUM NOTICE PRIOR TO INTERRUPTION TO EXISTING FACILITY POWER.

CONTRACTOR SHALL COORDINATE ALL EXPECTED PROCEDURES WITH OWNER AND ALL LOCAL INSPECTION AGENCIES. ONE MONTH PRIOR TO INTERRUPTING POWER, CONTRACTOR SHALL SUBMIT TO ENGINEER A DETAILED OUTLINE AND DESCRIPTION OF HOW THIS PROCEDURE IS TO TAKE PLACE, FOR HOW LONG POWER WIL BE DOWN, WHO HAS BEEN CONTACTED, ETC. THIS OUTLINE AND DESCRIPTION IS TO BE SUBMITTED AS SHOP DRAWINGS TO THE ENGINEER FOR REVIEW. NO INTERRUPTION OF MAIN SERVICE POWER SHALL OCCUR WITHOUT

THE ENGINEER'S WRITTEN APPROVAL OF THE ABOVE REFERENCED MATERIAL.

J. REFER TO PANEL AND EQUIPMENT SCHEDULES FOR FEEDER AND OVERCURRENT DEVICE SIZES.

K. SERVICE EQUIPMENT SHALL BE MARKED WITH THE MAXIUM AVAILABLE FAULT-CURRENT AT THE EQUIPMENT AND THE DATE THE

CALCULATION WAS PERFORMED. APPLY A TYPE-WRITTEN ADHESIVE LABEL WITH WHITE BACKGROUND 1/2" HIGH BLACK LETTERING.

L. ALL CIRCUIT BREAKERS AND/OR DISCONNECTS SERVING THE PRIMARY SIDE OF A TRANSFORMER WHICH ARE NOT WITHIN SITE OF THE

TRANSFORMER SHALL BE PROVIDED WITH PERMANENTLY INSTALLED MEANS TO LOCK THE BREAKER IN THE OFF POSITION. SUCH TRANSFORMERS SHALL HAVE THE ROOM NAME AND NUMBER OF THE PRIMARY DISCONNECTING MEANS ENGRAVED ON THE EQUIPMENT

NAMEPLATE.

M. ALL SPD'S TO BE INTERNALLY MOUNTED. EXTERNALLY MOUNTED SPD'S ARE ACCEPTABLE, BUT MUST BE SAME MANUFACTURER AS PANEL

AND SHALL BE INSTALLED PER MANUFACTURER'S REQUIREMENTS.

N. ALL UN-USED SPACES WITHIN , DISTRIBUTION PANELBOARDS AND PANELBOARDS SHALL BE "PREPARRED SPACES" THAT ALLOW EACH

INSTALLATION OF A CIRCUIT BREAKER.

O. PROVIDE 4" THICK REINFORCED CONCRETE HOUSEKEEPING PAD UNDER ALL DRY-TYPE TRANSFORMERS.

P. ALL EMERGENCY FEEDERS SHALL BE MI CABLE.

Q. MINERAL INSULATED CABLE, TYPE MI

1. CABLE: UL 2196 LISTED FOR FIRE RESISTANCE; MINERAL-INSULATED, METAL-SHEATHED TYPE MI CABLES, FACTORY-

ASSEMBLED OF ONE OR MORE CONDUCTORS AS SHOWN ON THE DRAWINGS,

INSULATED AND ENCLOSED IN A SEAMLESS LIQUID- AND GAS-TIGHT CONTINUOUS COPPER SHEATH, EQUAL TO PENTAIR BUILDING

SOLUTIONS “SYSTEM 1850.”

a. CONDUCTORS: SOLID COPPER WITH CROSS-SECTION AREA CORRESPONDING TO STANDARD AWG SIZES.

b. SHEATH: SEAMLESS SOFT-DRAWN COPPER JACKET.

c. INSULATION: COMPRESSED MAGNESIUM OXIDE, PROVIDING SPACE FOR CONDUCTORS. THICKNESS AT LEAST 55 MILS FOR

CABLE 14 AWG THROUGH 250 KCMIL.

d. RATINGS: CABLE SHALL COMPLY WITH NEC ARTICLE 332 AND THE OTHER APPLICABLE PROVISIONS OF NFPA 70, AND SHALL BE

UL CLASSIFIED AS HAVING A TWO-HOUR FIRE RESISTANCE RATING.

e. ACCESSORIES FOR TERMINATION: CORRESPONDING TO THE DIAMETER OF SHEATH AND NUMBER OF CONDUCTORS.

2. PROVIDE UNITS FACTORY-CUT TO SIZE, COMPLETE WITH BOTH END TERMINALS, SHIPPED ON A REEL.

R. INSTALLING MINERAL INSULATED CABLE, TYPE MI

1. WHEN CABLES ARE CUT IN THE FIELD, SEAL THE ENDS WITH STANDARD SEALING COMPOUND AND PVC TYPE.

2. PREVENT DAMAGE TO THE CABLE FROM BLOWS WITH SHARP INSTRUMENTS OR PULLING OVER SHARP OBJECTS. DO NOT

PERMIT CABLE TO KINK OR SNARL.

3. CABLE INSTALLATION:

a. SUPPORT ON TRAPEZE HANGERS OR CLIP DIRECTLY TO BEAMS OR CEILINGS USING CLIPS OR STRAPS AVAILABLE FROM THE

MANUFACTURER.

b. FOR FIRE-RATED CIRCUITS, SECURE THE CABLE TO A TWO-HOUR FIRE RATED SURFACE, USING SUPPORTS NO MORE THAN

THREE FEET ON CENTERS.

c. WHERE SUBJECT TO POTENTIAL DAMAGE, PROTECT CABLES WITH ANGLE IRON, CHANNEL, OR SHORT PIECES OF CONDUIT.

d. BENDING: USE HICKEYS AVAILABLE FROM THE MANUFACTURER. THE RECOMMENDED MINIMUM BEND RADIUS IS FIVE (5) TIMES THE

CABLE DIAMETER.

e. WHEN FORMING PART OF A CIRCUIT, SINGLE-CONDUCTOR CABLES SHALL BE RUN CLOSE TOGETHER

WITH SHEATHS TOUCHING THROUGHOUT THE LENGTH OF THE RUN, AS RECOMMENDED BY THE MANUFACTURER.

4. TERMINATING THE CABLE:

a. TERMINATE WITH GLANDS AND SEALS, AVAILABLE FROM THE MANUFACTURER, APPROVED FOR THE APPLICATION, AND FOLLOWING THE MANUFACTURER’S RECOMMENDATIONS. AT ORDINARY LOCATIONS, USE STANDARD

TERMINATION AND SEALING COMPOUND.

b. USE STRIPPING TOOLS, POT WRENCHES, CRIMPING AND COMPRESSING TOOLS, AVAILABLE FROM THE MANUFACTURER, AND DESIGNED FOR THE PURPOSE, TO PREPARE THE CABLE AND INSTALL THE GLANDS AND SEAL ASSEMBLIES.

c. UPON COMPLETION OF THE TERMINATIONS, CHECK THE INSULATION RESISTANCE OF THE CABLE WITH A 500-VOLT INSULATION

TESTER. RESISTANCE VALUE SHALL BE SUBMITTED FOR REVIEW BY THE ARCHITECT.

5. SPLICING THE CABLE:

a. CABLE MAY BE SPLICED IN A JUNCTION BOX. INSTALL A STANDARD TERMINATION ON THE END(S) OF THE CABLE ENTERING THE

BOX. THE BOX SHALL BE ACCESSIBLE TO COMPLY WITH NFPA 70 REQUIREMENTS.

b. A STRAIGHT-THROUGH JOINT AS SUPPLIED BY THE MANUFACTURER AND INSTALLED IN ACCORDANCE WITH MANUFACTURER’S

RECOMMENDATIONS MAY BE USED.

c. FIRE-RATED JOINTS SHALL BE INSTALLED BY THE MANUFACTURER.

6. CONNECTIONS TO FERROUS ENCLOSURES: WHEN USING SINGLE-CONDUCTOR CABLES, HEATING BY INDUCTION AND HYSTERESIS WILL OCCUR IF PRECAUTIONS ARE NOT TAKEN TO PREVENT THIS EFFECT. SUBSTITUTE A BRASS PLATE, 0.25-INCH MINIMUM THICKNESS, FOR THE STEEL OF THE BOX, BY CUTTING OUT THE BOX SECTION CONTAINING THE KNOCKOUTS OR ENTRY HOLES, AND FIXING THE BRASS PLATE SECURELY TO THE BOX WITH A MINIMUM OF FOUR BOLTS.”

S. MARK PANELBOARDS AND ELEVATOR CONTROLLER WITH THE MAXIMUM AVAILABLE FAULT-CURRENT AT THE EQUIPMENT AND THE DATE THE CALCULATION WAS PERFORMED. APPLY A TYPE-WRITTEN ADHESIVE LABEL WITH WHITE BACKGROUND, 1/2'’ HIGH BLACK LETTERING.

T. INSTALL SEPARATE CONDUITS, PULL BOXES, ETC. FOR EACH EMERGENCY POWER BRANCH AND NORMAL POWER BRANCH PER NEC FOR

COMPLETE SEPARATION OF POWER SERVICES.

U. PROVIDE ALL CIRCUIT BREAKERS AND/OR DISCONNECTS SERVING THE PRIMARY SIDE OF A TRANSFORMER WITH PERMANENTLY INSTALLED MEANS TO LOCK THE BREAKER IN THE OFF POSITION. INCLUDE THE ROOM NAME AND NUMBER OF THE PRIMARY DISCONNECTING MEANS

ENGRAVED ON THE EQUIPMENT NAMEPLATE.

V. INCREASE CONDUIT SIZE AS REQUIRED WHERE INSTALLING PVC CONDUIT UNDERGROUND.

W. PROVIDE A REDUCED SIZE (17” X 22” MINIMUM), BUT CLEARLY READABLE, COPY OF THE AS-BUILT RISER DIAGRAM MOUNTED TO THE WALL

ADJACENT TO THE MAIN DISTRIBUTION PANEL (MDP) AT THE SERVICE ENTRANCE. IT SHALL BE LAMINATED AND RIGIDLY MOUNTED UNDER

PLEXIGLAS OR OTHER MEANS THAT PROTECTS IT FROM DAMAGE OR EASY REMOVAL.

X. REFER TO THE TRANSFORMER GROUNDING DETAIL FOR MORE INFORMATION ON CONNECTION OF GROUNDING ELECTRODE CONDUCTORS

AND SUPPLY SIDE BONDING JUMPERS.

Y. THE GROUND-FAULT PROTECTION SYSTEM SHALL BE PERFORMANCE TESTED WHEN FIRST INSTALLED ON SITE. THE TEST SHALL BE CONDUCTED IN ACCORDANCE WITH MANUFACTURER’S INSTRUCTIONS. A WRITTEN RECORD OF THIS TEST SHALL BE MADE AND SHALL BE

AVAILABLE TO THE AUTHORITY HAVING JURISDICTION.

Z. THE POWER/ENERGY METERING SHALL BE INTERFACED AND MONITORED THROUGH THE DDC CONTROL SYSTEM (BAC-NET). REFER TO

CONTROL SCHEMATICS AND SPECIFICATIONS FOR MORE INFORMATION.

NO SCALE

POWER DISTRIBUTION RISER DIAGRAM - NEW WORK

REVISIONS

# DATE DESCRIPTION

Kentucky School For The Deaf – Middleton Hall Renovation Project

Renovation Project Number 540-CALK-SD19-90

Addendum #6

CHANGES TO DRAWINGS:

Mechanical

Sheet # Sheet Title Noted Update

M2.1 FIRST FLOOR MECHANICAL

PLAN

1. Updated naming convention for hydronic lines serving heat pumps.

M3.1 MECHANICAL PLAN -

HYDRONICS

1. Updated naming convention for hydronic lines serving heat pumps.

CHANGES TO SPECIFICATIONS:

• 221000 – Pipe for Plumbing o Added section for under slab sanitary piping.

• 232113 – Hydronic Piping o Removed Hot water piping section.

• 275313 – Wireless Clocks o Added entire specification

CONTRACTOR RFIs:

1) Mechanical plans are inconsistent regarding the piping system feeding the new heat pumps throughout. Some locations show “GS/GR” geothermal loop pipe connections, while many other areas are labeled “CHWS/R” for chilled water. Please confirm there is no new chilled water piping, nor an active chilled water system in the renovated design of this building at all, and that all new heat pump connections are indeed Geothermal piping. There is no new chilled water piping. The chilled water system is being demolished with existing piping to be reused. Addendum 6 drawings reflect the graphical changes to clarify design intent.

2) Hydronic piping spec 232113 has a section for Hot Water Piping. The renovation has no heating water piping to my knowledge, so does this sectionof the spec apply to where the geothermal connects to the actual domestic water? Or is it just inapplicable. Please advise. Confirmed there is no hot water piping in renovation. The hot water piping section can be removed from specifications.

3) What pipe material (assumed?) are the existing vertical hydronic piping mains where mechanical contractor will cut in new tees and valves for the new water source heat pump branches? (Visited the site meeting to see existing conditions but many areas are insulated and the piping underneath is unknown.)

Need all mechanical subcontractors to be bidding the same thing here, regarding what existing material for these many connections will be (which matters regardless of what NEW piping option is selected by the installer). Schedule 40 steel was assumed for existing piping.

4) Please provide material specification for underslab sanitary piping, none indicated in the revised spec section 221000 from addendum #2, but the plans and sewer riser definitely show some new underslab piping. Underslab piping has been added to specification 221000 in addendum 6.

5) What material (assumed?) is the existing piping for the underslab and above slab sanitary sewer?

Plumbing contractors need to know in order to cut-and-cap demo items correctly and also to know what materials will be needed at all new tie-ins, regardless of what NEW piping material is selected by the installer. Cast iron was assumed for all existing sanitary piping.

6) Mechanical spec 232113 indicates for condensate drainage piping to be copper type M. However, there are various other areas in the building (and in the plumbing specs) allowing pvc pipe drainage on other systems, so is pvc sched 40/DWV acceptable for condensate drain material? HVAC condensate shall be type M copper as specified.

7) Is all condensate drainage considered to be part of the “HVAC systems”, for price-splitting purposes on the bid form? Confirmed.

8) For price-splitting purposes, please indicate where the “HVAC” scope ends and the “plumbing” scope begins on sheet M5.1’s detail “Domestic Hot Water Heat Pump Control Schematic”, INCLUDING the BAS/Temperature Controls Contractor elements of this detail.

Detail on sheet M5.1 outlines scope for BAS contractor. Detail 4 on sheet M4.1 outlines scope for mechanical contractor. Detail on sheet P0.2 outlines scope for plumbing contractor.

9) Addendum #2 Q&A section confirms that Coordination Drawings are indeed required for the MEP trades, but that the method is by contractor preference. We need further clarification. Does that mean that all MEP contractors would create their own drawings and submit them for approval in whatever format, and that there’s not an overall “Coordinator” who meshes and clash-detects among all the various MEP folks? It’s unclear what the requirements and expectations are for “coordination drawings” among the subtrades.

Per specification 230500 3.34E, each MEP contractor is responsible for the development of their coordination drawings and the mechanical contractor is responsible for integration of all MEP coordination drawings into a single conformed set.

ATTACHMENT(S):

• Mechanical Drawings as listed above

• Electrical Drawings as listed above

• Specification sections as listed above

END OF ADDENDUM #6

Account No. 540-CALK-SD19-00

PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING 221000-1

SECTION 221000 - PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING

PART 1 – GENERAL:

1.1 RELATED DOCUMENTS

A. The Contractor's attention is directed to the General and Special Conditions, COMMON WORK

RESULTS FOR PLUMBING and to all other Contract Documents as they apply to this branch of the work.

Attention is also directed to all other sections of the Contract Documents which affect the work of this section, and which are hereby made a part of the work specified in this section.

B. Each Contractor's attention is also directed to Specification Section HANGERS, CLAMPS, ATTACHMENTS, ETC.

C. The Contractor's attention is also directed to Specification Section SHOP DRAWINGS, MAINTENANCE, MANUALS AND PARTS LISTS FOR PLUMBING.

D. The Contractor's attention is directed to Specification Section INSULATION - MECHANICAL.

E. The Contractor's attention is directed to Specification Section PIPE FILLING, CLEANING, FLUSHING, PURGING AND CHEMICAL TREATMENT.

1.2 SCOPE

A. Unless otherwise indicated, all materials shall be new and of the best grade and quality for the type specified. Materials shall comply with the “Buy American Act”.

B. Where piping is not indicated on the plans, but is obviously or apparently required, contact the Engineer prior to submission of the bid.

C. The piping indicated shall be installed complete and shall be of the size indicated. When a pipe size is not indicated, the Contractor shall request the pipe size from the Engineer. Where a section of piping is not indicated but is obviously required for completion of the system, the Contractor shall provide same at no additional cost to the project.

D. Piping materials in each system shall, to the extent practicable, be of the same material. Frequent changes of material (for example, from copper to steel) shall be avoided and in no case shall be accomplished without use of insulating unions and permission of the Engineers.

PART 2 – PRODUCTS

2.1 PLUMBING PIPING APPLICATIONS:

A. SOIL, WASTE AND VENT PIPING (BELOW SLAB):

1. Service weight cast iron hub and spigot piping with compression gasket joints. Service-weight cast-iron

2. Pipe and fittings shall be produced and labeled as ASTMA74 and C1563.

3. Schedule 40 PVC pipe with drainage pattern fittings and solvent cement joints made in accordance with the plumbing code (ASTM – D2665 & D1784). PVC pipe shall not be installed where wastewater applications exceed 140 deg F.

4. Piping below slab shall be a minimum of 2” in size.

B. SOIL, WASTE AND VENT PIPING (ABOVE SLAB):

5. Service weight hubless cast iron pipe with manufacturer's approved bands.

PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING 221000-2

6. Service weight cast iron hub and spigot piping with compression gasket joints.

7. Schedule 40 galvanized steel piping with screwed ends and cast iron drainage pattern fittings for piping

2" and less in size. Provide pipe adapters for connector of cast iron pipe at slab.

8. Type DWV copper drainage piping with cast bronze drainage pattern fittings with solder joints.

9. Schedule 40 PVC pipe with drainage pattern fittings and solvent cement joints made in accordance with the Plumbing Code.

2.2 DOMESTIC COLD, HOT AND RECIRCULATING HOT WATER PIPING (ABOVE SLAB):

A. Type "L" hard copper tubing with wrought copper fittings with lead free solder equivalent in performance to 95/5. (Maximum lead content of solder and flux is 2%).

B. Type L copper with grooved couplings and fittings. Fittings shall be Victaulic 607/89 or approved equivalent.

2.3 DOMESTIC COLD, HOT AND RECIRCULATING HOT WATER PIPING (BELOW SLAB):

A. Type "K" hard or soft copper tubing with wrought copper fittings and brazed joints. There shall be no joints beneath slabs.

2.4 UNIONS, FLANGES AND WELDED TEES

A. Screwed unions, soldered unions or bolted flanges shall be provided as required to permit removal of equipment, valves, and piping accessories from the piping system. Keep adequate clearances for coil removal, rodding, tube replacement, motor lubrication, filter replacement, etc. Flanged joints shall be assembled with appropriate flanges, gaskets, and bolting. The clearance between flange faces shall be such that the connections can be gasketed and bolted tight without imposing undue strain on the piping system.

B. Dielectric insulating couplings or though ways shall be used wherever the adjoining materials being connected are of dissimilar metals such as connections between copper and steel pipe.

C. Tee connections for welded pipe shall be assembled with welding fittings. Where the size of the side outlet is such that a different connection technique than on the run is required, a weldolet, sockolet, or threadolet type fitting may be used for the branch in place of reducing tees only where the branch is 2/3 the run size or smaller. Weld-o-let and thread-o-let branch connections are acceptable.

2.5 SPECIFICATIONS STANDARDS:

A. All piping and material shall be new, comply with the “Buy American Act” and shall conform to the following minimum applicable standards:

1. Steel pipe; Schedule 40; ASTM A-53.

2. Copper tube; Type K, L, M; ASTM B88-62; Type DWV ASTM B306-62.

3. Cast iron soil pipe; ASA A-40.l and CS 188-59.

4. Cast iron drainage fittings; ASA B16.12.

5. Cast iron screwed fittings; ASA B16.4.

6. Welding fittings; ASA B16.9.

7. Cast brass and wrought copper fittings; ASA B16.18.

8. Cast brass drainage fittings; ASA B16.23.

9. PVC pipe; Schedule 40; ASTM D-1785.

10. PVC pipe; Schedule 40; ASTM D2665 and D1784. Piping must be installed in compliance to the manufacturer’s recommendations which shall be made available to the plumbing inspector.

PART 3 – EXECUTION

3.1 Pay particular attention to conflict of piping with other work. Do not install until conflict is resolved. If in doubt, consult Engineer.

PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING 221000-3

3.2 Dielectric couplings or through ways shall be provided at all connections of dissimilar materials.

3.3 Nipples shall be of the same material, composition, and weight classification as pipe with which installed.

3.4 Install all gas piping per NFPA54. Union or valves shall not be installed in an air plenum. Piping below slab must be sleeved and vented. Piping installed in contained non-vented areas shall not have mechanical joints.

3.5 The entire sanitary waste and vent piping system within the building shall be air-tight. If any sewer gases are present within the building. It shall be the Contractor’s responsibility to locate and correct any leaks and retest as required. Any sewer odor issues that occur during the Warranty Period shall be corrected by the Contractor.

3.6 All piping shall be capped or plugged during erection as required to keep clean and debris and moisture free.

3.7 All piping shall be capped or plugged during erection as required to keep clean and debris and moisture

3.8 All piping shall be installed straight and true, parallel, or perpendicular to the building construction. Piping shall be installed so as to allow for expansion without damage to the building finishes, structure, pipe, equipment, etc., use offsets, U-bends or expansion joints as required. No mitered joints or field fabricated pipe bends shall be accepted. Pipe shall clear all windows, doors, louvers, and other building openings.

3.9 All pipes shall be supported in a neat and workmanlike manner and wherever possible, parallel runs of horizontal piping shall be grouped together on hangers. Vertical risers shall be supported at each floor line with approved steel pipe riser clamps. Spacing of pipe supports shall not exceed eight (8) foot intervals for pipes 3” and smaller and ten (10) foot intervals on all other piping. Small vertical pipes (1” and less) shall be bracketed to walls, structural members, etc. at four (4) foot intervals so as to prevent vibration or damage by occupants.

3.10 Insulated piping shall be supported on a rigid insulation block at each hanger so as to prevent crushing of insulation by hangers. Hangers shall pass completely around the insulation jacket and a steel protective saddle shall be applied to prevent compression of the insulation. Refer to Specification Section

INSULATION - PLUMBING.

3.11 The use of wire or perforated metal to support pipes will not be permitted. Hanging pipes from other pipes shall not be permitted.

3.12 Where piping rests directly on a hanger, clip, bracket or other means of support, the support element shall be of the same material as the pipe, (e.g., copper to copper, ferrous to ferrous, etc.) or shall be electrically isolated one from the other so as to prevent pipe damage by electrolysis. Pay particular attention and do not allow copper pipe to rest on ferrous structural members, equipment, etc. without electrolytic isolation.

This includes temporary support required during Construction.

3.13 In general, piping shall be installed concealed except in mechanical rooms, etc. unless otherwise indicated, and shall be installed underground or beneath concrete slabs only where indicated. All lines at ceilings shall be held as high as possible and shall run so as to avoid conflicts with other trades, and to facilitate the

Owner's use and maintenance. Location of pipe in interior partitions shall be carefully coordinated with whoever will construct the partitions after the piping is in place. Where exposed risers occur, they shall be kept as close to walls as possible.

3.14 Pipe shall be cut accurately to measurements established at the building by the Contractor and worked into place without springing or forcing. All pipes shall be reamed to full pipe diameter before joining and

PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING 221000-4

before assembling. All lengths of pipe shall be set vertically and tapped with a hammer to remove scale and dust and inspected to ensure that no foreign matter is lodged therein.

3.15 All hot and cold water piping shall be kept a sufficient distance apart so as to prevent heat transfer between them. Cold water piping shall also be kept apart from refrigerant hot gas lines.

3.16 Piping carrying water or other fluids subject to freezing shall not be installed in locations subject to freezing. If in doubt, consult Engineer.

3.17 Apply approved pipe dope for service intended to all male threaded joints. The dope shall be listed for intended use.

3.18 Eccentric reducers shall be used where required to permit proper drainage and venting of pipe lines;

bushings shall not be permitted.

3.19 Installation of pipe shall be in such a manner as to provide complete drainage of the system, whether detailed or not on plans. Drain valves shall be provided at all drainage points on pipes. Drain valves shall be ½" size ball valves with 3/4" hose thread end and vacuum breaker. Label each drain valve.

3.20 Plastic piping or any material with a flame and smoke spread rating not approved for plenum use shall not be permitted in supply, return, relief or exhaust plenums.

3.21 All increases in vent size at roof shall be by means of service weight cast iron increasers.

3.22 Piping for all drainage systems shall be installed to permit flow, trapping, and venting in accord with current codes and best practice.

3.23 The entire domestic hot, cold, and recirculating hot water piping system shall be sterilized in strict accord with requirements of the Department of Health Codes, Rules and Regulations for the State in which the work is being accomplished.

3.24 PIPE TESTING:

A. Piping shall be tested before being insulated or concealed in any manner. Where leaks or defects develop, required corrections shall be made and tests repeated until systems are proven satisfactory.

B. Water piping systems shall be subjected to a hydrostatic test of 150 psi. The system shall be proven tight after a twenty-four (24) hour test.

C. The house drain line, interior storm sewers, interior rain water conductors, and all soil, waste and vent piping shall be subjected to a hydrostatic test of not less than a 10-foot head or an air test of not less than 5 psi and shall hold for 15 minutes.

D. After fixtures have been installed, the entire plumbing system, exclusive of the house sewer, shall be subjected to an air pressure test equivalent to one inch water column and proven tight. The Contractor responsible shall furnish and install all of the test tees required, including those for isolating any portion of the system for tests.

E. The Contractor shall perform all additional tests that may be required by the Department of Health or other governing agency.

PIPE, PIPE FITTINGS AND PIPE SUPPORT FOR PLUMBING 221000-5

F. Any leaks or imperfections found shall be corrected and a new test run until satisfactory results are obtained. The cost of repair or restoration of surfaces damaged by leaks in any system shall be borne by

3.25 PITCH OF PIPING:

A. All piping systems shall be installed so as to drain to a low point. Certain minimum pitches shall be required for this drainage. For proper flow and/or for proper operation, the following pitches shall be required:

B. INTERIOR SOIL, WASTE AND VENT PIPING: ¼” per foot in direction of flow where possible but in no case less than 1/8" per foot.

C. CONDENSATE DRAIN LINES FROM COOLING EQUIPMENT: Not less than ¼” per foot in direction of flow.

END OF SECTION.

HYDRONIC PIPING 232113 - 1

SECTION 23 2113 - HYDRONIC PIPING

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. The Contractor's attention is directed to the General and Special Conditions, COMMON WORK

RESULTS FOR HVAC and to all other Contract Documents as they apply to this branch of the work.

Attention is also directed to all other sections of the Contract Documents which affect the work of this section, and which are hereby made a part of the work specified in this section.

B. Each Contractor's attention is also directed to Specification Section HANGERS, CLAMPS, ATTACHMENTS, ETC.

C. The Contractor's attention is also directed to Specification Section SHOP DRAWINGS, MAINTENANCE, MANUALS AND PARTS LISTS FOR HVAC.

D. The Contractor's attention is directed to Specification Section INSULATION - MECHANICAL.

E. The Contractor's attention is directed to Specification Section PIPE FILLING, CLEANING, FLUSHING, PURGING AND CHEMICAL TREATMENT.

1.2 SCOPE

A. Unless otherwise indicated, all materials shall be new and of the best grade and quality for the type specified. Materials shall comply with the “Buy American Act”.

B. Where piping is not indicated on the plans, but is obviously or apparently required, contact the Engineer prior to submission of the bid.

C. The piping indicated shall be installed complete and shall be of the size indicated. When a pipe size is not indicated, the Contractor shall request the pipe size from the Engineer. Where a section of piping is not indicated but is obviously required for completion of the system, the Contractor shall provide same at no additional cost to the project.

D. Pay particular attention to conflict of piping with other work. Do not install until conflict is resolved. If in doubt, consult Engineer.

E. Piping materials in each system shall, to the extent practicable, be of the same material. Frequent changes of material (for example, from copper to steel) shall be avoided and in no case shall be accomplished without use of insulating unions and permission of the Engineers.

F. Dielectric couplings or through ways shall be provided at all connections of dissimilar materials.

G. Nipples shall be of the same material, composition, and weight classification as pipe with which installed.

H. Plastic piping or any material with a flame and smoke spread rating not approved for plenum use shall not be permitted in supply, return, relief, or exhaust plenums.

I. Non-metallic piping shall be installed in strict accordance with the manufacturer's instructions. If no such instructions are available, consult Engineer.

J. When connecting to an existing hydronic water system (chilled, hot, etc.), the Contractor shall include cost to drain the existing piping system and refill with water/closed loop chemicals to match existing fluid. If the building is occupied, and the drain down will affect services to these occupied areas, then the systems shall be drained and refilled over a weekend at a time acceptable to the Owner. Refer to Specification.

HYDRONIC PIPING 232113 - 2

PART 2 – PRODUCTS

2.1 UNIONS, FLANGES AND WELDED TEES

A. Screwed unions, soldered unions or bolted flanges shall be provided as required to permit removal of equipment, valves, and piping accessories from the piping system. Keep adequate clearances for coil removal, rodding, tube replacement, motor lubrication, filter replacement, etc. Flanged joints shall be assembled with appropriate flanges, gaskets, and bolting. The clearance between flange faces shall be such that the connections can be gasketed and bolted tight without imposing undue strain on the piping system.

B. Dielectric insulating couplings or though ways shall be used wherever the adjoining materials being connected are of dissimilar metals such as connections between copper and steel pipe.

C. Tee connections for welded pipe shall be assembled with welding fittings. Where the size of the side outlet is such that a different connection technique than on the run is required, a weldolet, sockolet, or threadolet type fitting may be used for the branch in place of reducing tees only where the branch is 2/3 the run size or smaller. Weld-o-let and thread-o-let branch connections are acceptable.

2.2 STANDARDS

A. All piping and material shall be new, comply with the “Buy American Act” and shall conform to the following minimum applicable standards:

• Steel pipe; Schedule 40; ASTM A-53.

• Copper tube; Type K, L, M; ASTM B88-62; Type DWV ASTM B306-62.

• Cast iron soil pipe; ASA A-40. l and CS 188-59.

• Cast iron drainage fittings; ASA B16.12.

• Cast iron screwed fittings; ASA B16.4.

• Welding fittings; ASA B16.9.

• Cast brass and wrought copper fittings; ASA B16.18.

• Cast brass drainage fittings; ASA B16.23.

• PVC pipe; Schedule 40; ASTM D-1785.

• PVC pipe; Schedule 40; ASTM D2665 and D1784. Piping must be installed in compliance to the manufacturer’s recommendations which shall be made available to the plumbing inspector.

2.3 HVAC PIPING APPLICATIONS

A. Geothermal/Heat Pump Loop Piping (Option A)

1. Mains and branches – Piping shall be virgin polyethylene with a PE 3408 piping formulation and

345464C or greater cell classification. Pipe shall be SDR 15.5, minimum pressure rating of 110 psi at

73.4°F.

2. Individual Heat Pump Runouts - Type "L" hard copper tubing with wrought copper fittings and 95/5 solder.

3. Special Note: Takeoffs and branch piping to individual coils or heat pumps shall not be connected to the top of hydronic mains. Connection to mains shall be at the side of the main. Also refer to details on the drawings.

4. Transitions from HDPE to Copper – Factory Manufactured Transition required with brass or stainless steel threads. No metal threads shall be inserted into polyethylene piping, and no polyethylene threads shall be inserted into metal piping.

HYDRONIC PIPING 232113 - 3

5. The only acceptable method for joining pipe is by a heat fusion process. Pipe shall be butt or socket fused in accordance with pipe manufacturer's procedures. All piping work shall be performed in accordance with Specification Section – GEOTHERMAL LOOP SYSTEM. Victaulic style 905/908 couplings may be utilized on above ground HDPE applications.

6. Aquatherm piping with fused joints is also an acceptable alternative. (Contractor’s Option)

B. Geothermal/Heat Pump Loop Piping (Option B)

1. 2” and Smaller: Installation-Ready™ fittings for schedule 40 plain end carbon sizes ½” through

2”. Fittings shall consist of a ductile iron housing, complete with pre-lubricated EPDM gasket, and designed for direct stab installation. System rated for a working pressure of 300 psi. QVSD

P07, P10, P89.

2. 2½” and Larger: Schedule 40 Victaulic 107/W07 or approved mechanical grooved pipe couplings and fittings with a minimum 125# rating. Install gaskets as recommended by the manufacturer.

Piping system shall be rated for minimum of 250 degrees F water temperature. Mechanical grooved piping may not be used if system water temperature exceeds 250ºF. All grooved components must be of one manufacturer.

C. Exterior Geothermal Piping: Refer to Specification Section – GEOTHERMAL LOOP SYSTEM.

D. Air Vent Discharge Lines: Type "L" soft copper; wrought copper fittings, 95/5 solder. Pipe to a suitable drainage location.

E. Condensate Drain Lines Type "M" copper tubing with sweat fittings and 95/5 solder.

F. Refrigerant Piping: Type "L" copper tubing with forged or wrought copper fittings and silver soldered joints. Solder must have a minimum of 15% silver content.

PART 3 – EXECUTION

3.1 All piping shall be capped or plugged during erection as required to keep clean and debris and moisture

3.2 All piping shall be installed straight and true, parallel, or perpendicular to the building construction. Piping shall be installed to allow for expansion without damage to the building finishes, structure, pipe, equipment, etc., use offsets, U-bends or expansion joints as required. No mitered joints or field fabricated pipe bends shall be accepted. Pipe shall clear all windows, doors, louvers, and other building openings.

3.3 All pipes shall be supported in a neat and workmanlike manner and wherever possible, parallel runs of horizontal piping shall be grouped together on hangers. Vertical risers shall be supported at each floor line with approved steel pipe riser clamps. Spacing of pipe supports shall not exceed eight (8) foot intervals for pipes 3” and smaller and ten (10) foot intervals on all other piping. Small vertical pipes (1” and less) shall be bracketed to walls, structural members, etc. at four (4) foot intervals so as to prevent vibration or damage by occupants.

3.4 The use of wire or perforated metal to support pipes will not be permitted. Hanging pipes from other pipes shall not be permitted.

3.5 Insulated piping shall be supported on a rigid insulation block at each hanger to prevent crushing of insulation by hangers. Hangers shall pass completely around the insulation jacket and a steel protective saddle shall be applied to prevent compression of the insulation.

HYDRONIC PIPING 232113 - 4

3.6 In metal buildings or buildings with light gauge trusses, support piping with standard pipe hangers with C-clamp connection to main structural members (not perlins), use angle steel cross pieces between main structural members where required to provide rigid support.

3.7 Where piping rests directly on a hanger, clip, bracket or other means of support, the support element shall be of the same material as the pipe, (e.g., copper to copper, ferrous to ferrous, etc.) or shall be electrically isolated one from the other to prevent pipe damage by electrolysis. Pay particular attention and do not allow copper pipe to rest on ferrous structural members, equipment, etc. without electrolytic isolation. This includes temporary support required during Construction.

3.8 In general, piping shall be installed concealed except in mechanical rooms, etc. unless otherwise indicated, and shall be installed underground or beneath concrete slabs only where indicated. All lines at ceilings shall be held as high as possible and shall run to avoid conflicts with other trades, and to facilitate the

Owner's use and maintenance. Location of pipe in interior partitions shall be carefully coordinated with whoever will construct the partitions after the piping is in place. Where exposed risers occur, they shall be kept as close to walls as possible.

3.9 Pipe shall be cut accurately to measurements established at the building by the Contractor and worked into place without springing or forcing. All pipes shall be reamed to full pipe diameter before joining and before assembling. All lengths of pipe shall be set vertically and tapped with a hammer to remove scale and dust and inspected to ensure that no foreign matter is lodged therein.

3.10 All hot and cold water piping shall be kept a sufficient distance apart to prevent heat transfer between them.

Cold water piping shall also be kept apart from refrigerant hot gas lines.

3.11 Piping carrying water or other fluids subject to freezing shall not be installed in locations subject to freezing. If in doubt, consult Engineer.

3.12 Apply approved pipe dope for service intended to all male threaded joints. The dope shall be listed for intended use.

3.13 Eccentric reducers shall be used where required to permit proper drainage and venting of pipe lines;

bushings shall not be permitted.

3.14 High points of closed loop chilled water, hot water and geothermal systems shall have manual air vents as required unless automatic air vents are specifically indicated. Pipe to suitable drainage point.

3.15 Installation of pipe shall be in such a manner as to provide complete drainage of the system, whether detailed or not on plans. Drain valves shall be provided at all drainage points on pipes. Drain valves shall be ½" size ball valves with 3/4" hose thread end and vacuum breaker. Label each drain valve.

3.16 Where plastic piping penetrates a fire rated assembly, it shall be replaced with a threaded metal adapter and metal pipe or whatever means necessary to maintain the separation rating in accordance with local plumbing and fire codes.

3.17 When running any type of pipe below a footing, perpendicular to the footing, the area underneath the footing and in the zone of influence shall be backfilled with concrete. The zone of influence is the area within a 45 degree angle projecting down from the top edge of footing on all sides of the footing.

3.18 When running any type of pipe below a footing, parallel to the footing, the area underneath the zone of influence shall be backfilled with 4” of crushed stone or sand bedding under the pipe. Each pipe section shall be anchored into unexcavated earth on both ends with deadman anchor system. The remainder of the trench in the zone of influence shall be backfilled with cementitious flowable fill. The zone of influence is

HYDRONIC PIPING 232113 - 5

the area within a 45 degree angle projecting down from the top edge of the footing on all sides of the footing.

3.19 PIPE TESTING:

A. Piping shall be tested before being insulated or concealed in any manner. Where leaks or defects develop, required corrections shall be made and tests repeated until systems are proven satisfactory.

B. Dual temperature water piping systems shall be subjected to a hydrostatic test of 250#. The system shall be proven tight after a twenty-four (24) hour test.

C. Geothermal water piping systems shall be subjected to a hydrostatic test of 150 psi. The system shall be proven tight after a twenty-four (24) hour test.

D. The Contractor shall perform all additional tests that may be required by all governing agencies.

E. Any leaks or imperfections found shall be corrected and a new test run until satisfactory results are obtained. The cost of repair or restoration of surfaces damaged by leaks in any system shall be borne by

3.20 PITCH OF PIPING

A. All piping systems shall be installed to drain to a low point. Certain minimum pitches shall be required for this drainage. For proper flow and/or for proper operation, the following pitches shall be required:

B. CONDENSATE DRAIN LINES FROM COOLING EQUIPMENT: Not less than ¼” per foot in direction of flow.

C. ALL OTHER LINES: Provide ample pitch to a low point to allow 100 percent drainage of the system.

END OF SECTION

WIRELESS CLOCKS 275313 - 1

SECTION 275313

WIRELESS CLOCKS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General, Special and Supplementary Conditions, Division 01 Specification Sections, Section 260010 “General…