ML20062H122

Technical Review of Safety-Related HVAC Sys Installed by Zack Co at LaSalle County Nuclear Generating Station

ML20062H122
Person / Time
Site:	LaSalle
Issue date:	08/12/1982
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20062H110	List: ML20062H104 ML20062H112 ML20062H116 ML20062H122
References
4743N, NUDOCS 8208130313
Download: ML20062H122 (52)

Text

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Mr. A.-Schwencer Augus t ' 12, 1982 f

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Submittal from Commonwealth Edison j

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a TECHNICAL REVIEW of the SAFETY-RELATED HVAC SYSTEMS installed by the-ZACK COMPANY at the LASALLE COUNTY NUCLEAR #

GENERATING STATION, August 12, 1982 4

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TABLE OF CONTENTS PAGE List of Attachments 2

' I. Introduction 3 II. Function of the HVAC Systems 4 III. Zack Company Capability and Scope 5 IV. Material Requirements for HVAC Ductwork Systems 6 V. Materials and Equipment Furnished 11 VI. Safety-Related HVAC System Failure / Effects 12 Analysis i

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i LIST OF ATTACHMENTS A. Definitions B. HVAC System Classification C. Safety-Related HVAC System Functions D. Simplified HVAC Process Flow Diagrams and P&ID's E. HVAC Equipment Purchased by Commonwealth Edison Company and Installed by the Zack Company.

F. Safety-Related HVAC System and Equipment Checklist G. Material Specification and Mechanical Properties for Galvanized Sheet Steel and Stiffener, Hanger and Support Steel.

H. Material Specification and Mechanical Properties for Fasteners Used in HVAC Systems J. HVAC Materials and Equipment Furnished by the Zack Company for the LaSalle Nuclear Generating Station K. Time / Temperature Profiles for Safety-Related HVAC Systems Assuming Loss of HVAC Page 2 of 13

6 I. Introduction A comprehensive review of the code requirements, material requirements, material properties, materials furnished and a review of a failure / effects analysis associated with the safety-related HVAC systems was performed. In addition, a field sampling and testing program was conducted by the Commonwealth Edison Company Construction Department. The results of these studies and tests have demonstrated that reasonable assurance exists in the HVAC systems' capability to perform . their safety function. This conclusion was

, based on the following.

a. The specifications for the materials used in the HVAC systems were in accordance with industry practice. There are no codes, such as ASME, that govern the design, fab-rication, or installation of HVAC systems.

b. The minimum quality level materials that may have been furnished by the Zack Company for the sheet metal ductwork, stiffener angles, supports or fasteners have mechanical properties in excess of the system design stress levels.

c. The bulk of all materials and equipment fabricated, furnished or erected by the Zack Company can be classified to a commercial grade quality level.

d. The limiting criteria, as a result of the complete loss of redundant HVAC systems, is an escalction in room temperature that may cause spurious actuation of solid state components. No failure has been identified that would cause a reactor accident. Sufficient time exists in which remedial action may be taken.

Before proceeding into the basis for the above conclusion, ,

it is important to establish the definitions of a number of terms as applied to HVAC systems. These are Nuclear Safety-Related Function, Safety-Related HVAC Systems, Non-Safety-Related/ Seismic HVAC Systems, Non-Safety-Related/

Non-Seismic HVAC Systems, Commercial Grade Quality, and Special Quality. These definitions are provided in Attachment A " Definitions".

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II. HVAC Systems The HVAC systems are provided to maintain a suitable environment for plant personnel and equipment or to mitigate the release of airborne radiological contaminants.

The system designations, appropriate acronyms and safety classes are listed in Attachment B "HVAC System Classification".

The safety-related HVAC systems serve the following areas:

Control Room, Auxiliary Electric Equipment Room, Diesel Generator Facilities, Switchgear Rooms, Emergency Core Cooling Equipment Areas and the Stand-by Gas Treatment System. The specific areas served by these systems and their functions are described in Attachment C " Safety-Related HVAC Systen Functions". The process arrangement and major system components are identified in Attachment D " Simplified HVAC Process Flow Diagrams and P&ID'S'. The Auxiliary Electric Equipment Room HVAC System diagram has not been shown as it is very similar to the Control Room HVAC System.

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4 III. Zack Company Capability and Scope The Zack Company has been in business since 1922 and has been significantly involved in the HVAC industry for the last 35 years. They have offices and shops in five loca-tions including-the home office in Cicero, Illinois. They have been involved in contracting to the automobile industry for many years. In various capacities, sheet metal, structural steel, siding, etc., they have been involved with the Gary, Indiana steel mills, including

, U.S. Steel. One of their commerical credits was the HVAC installation work at McCormak Place along Chicago's lake-front. They have completed HVAC work and boiler system flues and ducts for over fifteen fossil stations. Duane Arnold Station was the first nuclear power plant completed by the Zack Company. And, in addition to LaSalle County, they are currently engaged by Illinois Power Company at the Clinton Power Station and by Comsumer's Power at the Midland Power Station.

The HVAC Scope of Work was defined by Specification J-2590, HVAC. Work. This scope included the fabrication and erec-tion of HVAC ductwork and supports, and procurement and erection of ductwork accessories and equipment. Their scope also included the removal from storage and erection of equipment purchased by CECO, as shown in Attachment E, "HVAC Equipment Purchased by Commonwealth Edison Company and Installed by the Zack Company." The extent of Zack's scope of work, subdivided by component classification and how it relates to the safety-related HVAC System is shown in Attachment F, " Safety-Related HVAC System and Equipment Checklist."

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IV. Material Requirements for HVAC Ductwork Systems The LaSalle County HVAC Work Specification J-2590 requires that the HVAC ducts be made of galvanized sheet metal con-forming to the requirements of ASTM A527 for up to 16 gauge thickness and ASTM A526 for 14 gauge and heavier. The companion flange angles and stiffening angles are specified as ASTM A36 (ASTM A575 for angles less than 2-1/2" x 2-1/2" x 1/4"). Hanger supports are specified as ASTM A36. The specification further states the required thickness and angle iron stiffening and flange joints to be used for both seismic (safety-related and non-safety-related) and non-seismic (non-safety-related) applications. The physical design drawings indicate the size of the ductwork and of the hangsr angles.

The materials used for this application are the same as those used in any industrial or commercial HVAC application. Nuclear power plant galvanized ducts, angles, and hangers have no additional requirements placed on the manufacturing of these materials. The galvanized ducts, angles _and hanger steel must simply conform to the specified ASTM standard.

It is also important to point out that there are no national codes which specifically govern the design, fabrication, or installation of HVAC systems such as there are for power plant piping, which is covered by ASME Boiler and Pressure vessel Codes. In fact, the only national standard which covers duct systems is ANSI N509 " Nuclear Power Plant Air Cleaning Units and Components" which states requirements for for air cleaning ducts only. This standard, written initially in 1976 and extensively revised in 1980, states that galvanized sheet material for air cleaning ducts shall conform to ASTM A527/A525. No specific documentation is required for these materials.

The federal regulation which addresses the requirements for documentation is 10CFR50, Appendix B, Section VII, i " Control of Purchased Material, Equipment, and Services".

l It states "... documentary evidence that material and equipment conform to the procurement requirements shall be available at the nuclear power plant site prior to instal'.ation or use of such material and equipment. This documentary evidence shall be sufficient to identify the specific requirements, t

such as codes, standards, or specifications met by the l purchased material and equipment."

Since there are no national codes or standards which specify the documentation recuired, the documentation requirements l are the responsibility of the Purchaser (and his consulting l engineer) to define. As a minimum, evidence which indicates

the material conforms to the specified material is all that is l required. For this application which uses standardized, Page 6 of 13

commerical-grade material, a certificate of conformance '

would be acceptable.

LaSalle County HVAC Work Specification J-2590 however included standardized QA articles (prepared mainly for ASME B&PV code systems). These require the following:

2 copies of all appropriate documentation, as hereinafter specified, or as required by applicable code, standard, and criteria shall be submitted... A list of the minimum required documentation with references where they are defined is as follows:

, a. Certified Material Test Report, which shall include the actual results of all chemical analyses and mechanical tests required by the material specifications and actual results of all other tests required by material specification.

b. Welding Material Test Report.

c. Radiographic Certification.

d. Repair Weld Certification.

e. Eddy Current Test Report.

f. Hydrostatic Testing and/or Pneumatic Testing Report.

g. Leak Test Report.

h. Heat Treatment (Time and Temperature Charts) .

1. Material Identification and Marking (Traceability).

j. Filler Metal Traceability on Pressure Retaining Welds.

k. Welder Qualification Report.

1. Nondestructive Testing Personnel Qualification Report.

m. Code Data Report, including nameplate date and rubbing.

After award, a meeting was held with The Zack Company, Commonwealth Edison Company and Sargent &.Lundy to clarify the QA requirements. Item a above was clarified to only apply to duct sheets, angles, and supports. . Typical welding rod material certificates were also requested for non-code weld rod, which is in accordance with AWS 5.01. For the remainder of the work, certificates of conformance were required.

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e Nonconformances concerning the galvanized sheet steel and angle iron were submitted by The Zack Company to commonwealth Edison Company in late 1981 and early 1982. These non- ,

conformances were for documentation deficiencies (i.e.,

documentation which did not meet specification requirements) and not material deficiencies. These nonconformances were evaluated to determine if there was sufficient documentation available to verify if specified materials or materials equivalent to or exceeding specified material were provided.

, Other documents such as steel company invoices and Zack purchase orders which indicate for example ASTM A527 or lock forming quality (LFQ) galvanized steel l, provide adequate assurance that the specified materials were provided. Since these materials are identical to those materials routinely used in industrial and commercial applications, and the steel manufacturers have been producing this material to a nationally recognized standard for many, many years, the history of this standardized product indicates a satisfactory performance and quality.

The mechanical properties of the available materials for the sheet steel, stiffeners, hangers, supports and fasteners and compared them to the properties of the materials specified.

Attachment G " Material Specification and Mechanical Properties for Galvanized Sheet Steel and Stiffener, Hanger and Support Steel" lists the possible sheet and angle materials that may have been furnished for all tabulated sheet steel materials is 33,000 psi and for angle materials is 22,500 psi. The seismic analysis of the ductwork and support systems utilized a design yield strength of 18,000 psi. Therefore, materials routinely purchased by the Zack Company would satisify the design requirements of Specification J-2590.

Stiffener, hanger, and support angles used by The Zack Company have typically been purchased from Northwestern Steel and Wire Company. Angles of a size 3" x 3" x 1/4" and larger are normally produced to ASTM Specification A36 which has a minimum yield strength of 36,000 psi. Angles 2-1/2" x 2-1/2" x 1/4" and-smaller are normally produced to ASTM A36 or ASTM 575. ASTM 575 does not require physical property tests as part of its specification. However, based upon our discussions with Northwestern, their typical mechanical properties for the grade of steel specified (M1020 ) , the lowest grade available (M1008 ) , and two intermediate grades (M1010 and M1015) range from 34,000 psi to 37,200 psi minimum yield strength.

lASTM A527 is referred to as lock forming quality (LFO) in its title.

ASTM A526 is referred to as commercial quality (CO) in its title.

These terms are acceptable alternates for the ASTM designation.

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I Another possible substitution to the above materials is ASTM A663, " Standard Specification for Merchant Quality Hot-Rolled Carbon Steel Bars Subject to Mechanical Property kcquirements" although this is not a normal. product for ductwork stiffener material. Grades 45,:50, and 55 represent the lowest minimum yield strength cases with a minimum yield strength of 22,500 psi, which is above our design value.

Galvanized sheet steel used by The Zack company has typically been purchased from Inland Steel Company and other similarly reputable companies. Galvanized sheet steel, unless specifically identifed otherwise, is normally produced to ASTM Specifications A526 or A527. These specifications do not require physical property tests as part of their specificntions. However, Inland Steel Company periodically obtains mechanical property data on these materials as part of their quality control program. The mechanical properties listed in the attached tabula-tion are representative of the values obtained from this testing program. Other possible types of galvanized sheet steel ,

are also shown on the attached tabulation. These represent the minimum mechanical properties available for sheet steel, the lowest of which is above our design value.

One other alternative to purchasing galvanized sheet steel manufactured to ASTM A526/A527 would be to purchase uncoated sheet steel from the steel mill and them have it galvanized elsewhere. Procurement in this manner would not change the characteristics of the sheet steel as the uncoatted material would have been produced at ASTM'A366, " Standard Specification for Steel, Carbon, Cold-Rolled Sheet, Commercial Quality" or ASTM A569, " Standard Specification for Steel, Carbon (0.15 Maximum, Percent), Hot-Rolled Sheet and Strip, commercial-Quality". These specifications have the same chemical composition as materials produced to ASTM A526 or A527 anel therefore, are equivalent. Other forms of galvanized sheet, e.g., "Paintgrip", "Electrogalvanized", are different coating variations to the same base metals and carry the same ASTM designation for the base metal.

Since the specified materials are very common to the HVAC industry, material substitution is not very probable. However, if a substitution had occurred it would have a minimum yield strength greater than the design value of 18,000 psi.

Attachment H, " Material Specification ~and Mechanical Properties of Fasteners Used in HVAC Systems" lists the possible fasteners materials that may have been furnished and the corresponding minimum tensile strength. The minimum strengths of the bolts and nuts specified are 60,000 psi and 52,000 psi respectively, clearly, far in excess of our design limitations. Therefore, l no substitution in material would pose a design load capability l problem.

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It should also be pointed out that none of the nonconformances submitted involve the sheet metal gauge or angle size and thickness. Zack documents (fabrication tickets and duct -

4 construction details) indicate'the sheet metal gauge. This is verified during shop inspection.

All of these factors were involved in our review of the material documentation nonconformances to the' specification requirements and allowed use to accept alternate documentary evidence.

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4 V. Materials and Equipment Furnished The various materials and equipment furnished by The Zack Company in the execution of Specification J-2590, HVAC Work, are identified in Attachment J, "HVACi Materials and Equipment Furnished by The Zack Company." The scope of supply has been categorized as Fasteners, Miscellaneous Stael Products, etc. Each of the individual categories has a description of the item (s) furnished. p Where specific material specifications and/or manufacturer are identified within Specification J-2590 or the HVAC design drawings they are so identified. An item designated as "None Speciried" indicatecithat the design documents made no reference to material or source of supply. References made to items furnished by The Zack company were identified either in n-correspondence or within their subvendor/ duct brochure submittal drawings and were reviewed by the Consulting Engineer. The >

n items are classified as Safety-Related or Non-Safety-Related and Commercial Quality or Special Quality in accordance with the previous definitions. The final item of review is the Category of Documents Available (Objective Evidence).

This category is reviewed under the assumption that documentation provided by The Zack Company is suspect. Reference is made to the " General Notes" section of this attachment for explanation of the terminology used and where specific explanations were deemed necessary. ,[

From this review, only two types of materials were furnished that ,

1 can be classified as,special quality, i.e., High Strength Bolts ,

and Weld Rod Filler Material.- mThe balance of all'other materials-and eg:ipment furnished are classified as commercial grade quality.

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i a i VI. Safety-Related HVAC System Failure / Effects Analysis -

The following analysis was performed to determine what effects the total loss of the safety-related HVAC system, including failure of active redundant components or failure of common mode passive elements, coincident with a design basis accident, while the unit was at 50% power level and while the outside air temperature was 95*F.

( This is being done to take into account the questions

? about the Zack Company's HVAC installation improprieties.

Given the extreme hypothetical nature of this analysis, it is highly unlikely that a failure of the safety-related HVAC system would cause a design basis accident or prevent the unit from being brought into a cold shutdown situation.

Control Room HVAC System

. Total loss of the HVAC system, including loss of redun-dant active components, during a design basis accident, would have a two-fold effect. First, the temperature 4

h ' within the Control Room would rise to 10l'F after one hour, 103'F after two hours and 106*F after five hours.

Complete time / temperature profiles for this and the other safety-related HVAC systems are contained in Attachment K,

" Time /Temperaute Profiles for Safety-Related HVAC Systems Assuming Loss of HVAC". Within this time frame supplenen-tary ventilation equipment could be placed in operation to reduce the ambient temperatures. Second, the HVAC System provides a habitable environment within the Control Room for operating personnel. Under normal. design accident conditions, assuming that the make-up air is passed through the emergency make-up filter unit and all the remaining air is recirculated through the charcoal adsorber, the thyroid dose to operating personnel is 10 rem over 30 days, assuming 90% efficiency for the Stand-by Gas freatment System. Assuming the current rating for the SGTS of 99%, this dose would be about 1 rem. Should the air supplied to the Control Room by-pass the charcoal filtration systems then the dose to operating personnel would be 800 rem. However, the Control Room is provided with a bottled air supply, with an Iodinc Protection Factor of 1000 (

Reference:

10CFR20, Appendix A) effectively reducing the thyroid dose to 0.8 rem. If we assume that the design basis accident concurrent with total loss of the HVAC system occurs while the unit is at 50% power, then the thyroid dose to the operating personnel would be 0.4 rem.

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_D_lesel Generator Facilities Ventilation System There is no HVAC ductwork associated with the Diesel Generator Room Ventilation Systems and as_such are excluded from further effects analysis.

Total-loss of the ventilation system while the HPCS switchgear and pumps are in operation would cause the temperature to rise to 103*F after six minutes, 104'F after thirty minutes and would level out at 104'F after one hour. The thermal release charac-teristics for these rooms are similar to the Switchgear Rooms.

Auxiliary Electric Equipment Room HVAC System Assuming the same radiological conditions identified in the Control Room HVAC system, operating personnel occupying the Auxiliary Electric Equipment Room would be wearing self-contained breathing apparatus (SCBA), i.e., Scott Air-Packs. The pressure demand SCBA has an Iodine Protection factor of 10,000 for a full-mask facopiece, (

Reference:

10CFR20, Appendix A), effectively reducing the thyroid dose to 0.4 rem.

Standby Gas Treatment System (SGTS) 98% of this system is provided with piping work which was neither furnished nor installed by The Zack Company. Field tests on the few feet of ductwork furnished and installed by The Zack Company have demonstrated that they are the specified materials and no further analysis of the SGTS is warranted.

Switchgear Heat Removal System Total loss of the ventilation system while the switchgear is fully energized would cause the temperature to rise to 103'F after six minutes, 104 F after thirty minutes and would level out at 104'F after one hour. This temperature was the basis of the environmental qualification of the electrical equipment provided within the switchgear rooms.

Emergency Core ~ Cooling System (ECCS) Equipment Area Cooling The individual ECCS pumps are redundant to one another. Each c f the pump cubicles is provided with an independent HVAC system.

Should one of the HVAC systems fail, one of the redundant ECCS pumps and associated HVAC systems would be energized.

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ATTACHMENTS I

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ATTACHMENT A DEFINITIONS A. Nuclear Safety-Related Function Any function necessary to assure:

1. The integrity of the reactor coolant pressure boundary or primary coolant boundary,

2. the capability to shutdown the reactor and maintain it in a a safe shutdown condition, or

3. the capability to prevent or mitigate the consequences of conditions of design which could result in potential off-site exposures that are a significant fraction of Title 10, Code of Federal Regulations, Part 100, " Reactor Site Criteria."

B. Safety-Related HVAC Systems (Engineered Safety Feature Systems)

Those heating, ventilating, air conditioning, or air cleaning systems which provide necessary support to enable nuclear safety-related functions to be performed. Specific objectives are to:

1. Provide suitable environnent for plant personnel so they may perform required nuclear safety-related functions.

2. Provide a suitable environment for nuclear safety-relatsd plant equipment so it may perform required nuclear safety-related functions.

3. Control, limit, or prevent the release or transfer of air-borne radiological contaminants and intake of hazardous chemicals that could affect nuclear safety-related functions.

C. Non-Safety-Related/ Seismic HVAC' Systems Those HVAC Systems or portions of HVAC or air cleaning systers which, although not required to function, are required to retain their structural integrity (i . e . , remain in place during and after an SSE) so as not to prevent the operation of other nuclear safety-related systems.

D. Non-Safety-Related/Non-Seismic HVAC Systems Those HVAC systems or portions of HVAC air cleaning systems whose operation or structural integrity is not required to support nuclear safety-related functions.

L. Commerical Grade Quality Merchant or common grade materials, components , or appurtenances that are customarily used in industrial and commercial HVAC applications and which are readily available, catalog-type

("of f-the-shelf" ) items. No special manufacturing processes are Page 1 of 2

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1 required, over and above the normal industry practice, to

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enhance the items' characteristics. i F. Special Quality Material, components, or appurtenances that are special order, custom made as required when end use,. method of fabrication or subsequent processing *reatment requires quality characteristics not available in merchn- e r commercial grade quality -(e.g. , .

high strength, low alloy, quencher or special killed steels).

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ATTACHMENT B HVAC SYSTEM CLASSIFICATION SAFETY-RELATED e Control Room HVAC (VC) e Diesel Generator Facilities Ventilation (VD) e Auxiliary Electric Equipment Room HVAC (VE) e Switchgear Heat Removal Ventilation (TC()

e Emergency Coor Cooling System (ECCS) Equipment Area Cooling (VY) e Standby Gas Treatment System (VG) e Limited Portions of Reactor Building Ventilation (VR) and Primary Containment Purge (VP)

NON-SAFETY-RELATED/EEIEIIIC e Primary Containment (Drywell) Ventilation (VP) e Primary Containment Purge, Portions (VQ) e Reactor Building Ventilation System (VR)

NON-SAFETY-RELATED/ MON-SEISMIC e Auxiliary Building Office HVAC (VA) e River and Lake Screen House Ventilation (VH) e Machine Shop Ventilation (VJ) e Auxiliary Building Laboratory HVAC (VL) e Off-Gas Building HVAC (VO) -..

e Service Building HVAC (VS) e Turbine Building Ventilation (VT) e Radwaste Ventilation (VW)

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ATTACHMENT C SAFETY-RELATED HVAC 9 SYSTEM FUNCTIONS Safety-Related HVAC Systems Areas Served Function

1. Control Roon HVAC A Train and B Train Unit 1 & 2 Control Room Provide habitable zone ' including Main Security Center radiological and hazardous Storage Room chemical protection.

Provide temperature control for personnel comfort and equipment operation..

Ilaintain positive pressure.

2. Auxiliary Electric Eouipment

!<oon HVAC A Train and B. Train Unit 1 Auxiliary EE Room Frovide habitable zone including Unit 2 Auxiliary EE Room radiological and hazardous chemical Computer Room protection for remote plant

" Prime" Computer Room chutdown and hydrogen recombiner system operation.

Provide temperature control for personnel comfort and equipment' operation.

Maintain positive pressure.

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SAFETY-RELATED HVAC SYSTEM FUNCTIONS Page 2 of 3 Safety-Related HVAC Systems- Areas Served Function 3 Dinnel Ganorator Fncili tion Vont.ilation Unit i Diesel Gen. Room Vent Unit 1 Diesel Gen. &

Diesel Oil Rooms Provide temperature control for Standby Diesel Gen. Room Vent Standby Diesel Gen. & D-G, HFCS switchgear and pumps Diesel Oil Rooms rooms when equipment operates.

Unit 1 HFCS D-G Room Vent Unit 1 HFCS Diesel Gen. &

Diesel Oil Rooms Fr vide ventilation of diesel oil and day tank rooms.

Unit 1 HFCS SJGR/ Pump Rm Vent Unit 1 H1CS S.iGR & Pump Rms.

Unit 2 Diesel Gen. Room Vent Unit 2 Diesel Gen. &

Diesel Oil hooms Unit 2 HFCS D-G Room Vent Unit 2 HICS Diesel Gen. &

Unit 2 HFCS S.iGR/ Pump Rm Vent Diesel Oil dooms Unit 2 HFCS Sadh & Pump Rms

4. Switchgear Heat Removal Ventilation Unit 1 Reactor Frotection _ System Unit 1 Reactor Protection Sys. Provide ventilation for s3 Set Room Vent IGG Set Rm , 48V Battery Room temperature control for

& Cable Spreading Room equipment operability Unit 1 Ess Swgr Div I Vent Unit 1 Ecs Div I Swgr Room & .

125 V 3attery Room Unit 1 Ess Swgr Div II Vent Unit 1 Ess Div II Swgr Room & Provide ventilation for battery rooms.

125V Battery Roon Unit 2 Rx Frotection System Unit 2 Rx Frotection System I..G Set Room Vent IOG Set Rm , 40V Battery Room

& Cable Spreading Room Unit 2 Ess Swgr Div I Vent Unit 2 Ess Div I Swgr & 125V Battery Room Unit 2 Ess Swcr Div II Vent Unit 2 Ens Div II Swgr & 125V dattery Room

SAFETY-RELATED HVAC SYSTEM FUNCTIONS #98 Safety-Related HVAC Systems' Areas Served Function 5 SCCS Enni rinent Area Coolinu Unit 1 RHR lump 1A Cubicle Unit 1 RHR Pump 1A Cubicle Provide temperature control Cooler for ECCS pump operability.

Unit 1 HFCS Pump Cubicle Cooler Unit 1 HFCS Pump Cubicle Unit 1 RHR Pump 1B and 10 Unit 1 RHR 1B & 1C Fump Cubicle Cubicle Cooler Unit 1 LFCS & RCIC Pumps Unit 1 LFCS & RCIC Pump Cubicle Cubicle Cooler Unit 1 RHR Sw Pump A & B Unit 1 E'IR Sw Pump A & B Cubicle l

Cubicle Cooler Unit 1 RHR Sw hump C & D Unit 1 RHR Sw Pump C & D Cubicle Cubicle Cooler Unit 2 - Same as Above. Unit 2 - Same as Above.

6. Stendby Gan Treatment Sv_ stem Unit 1 & 2 SSTS Trains Unit 1 Reactor Building Maintain negative pressure (98% Piping System) -Unit 1 Drywell & Suppression in. reactor building.

Pool Chamber Unit 2 Reactor Building Remove radioactive iodine from Unit 2 Drywell & Suppression- post-accident reactor building Iool Chamber effluent.

7. Reactor Buildine Ventilation Unit 1 & 2 Reactor Building Unit 1 Reactor Building Isolate supply and exhaust Supply and Exhaust Isolation Unit 2 Reactor Building ducts for Reactor Building Vent System post-accident.

8. Primary Containnent Purce Unit 1 & 2 Contlinment Unit 1 & 2 Primary and Icolate primary and secondary luolaticn Secondary Containment containment nupply and exhaust pipes poct" accident.

ATTACHMENT D-SIMPLIFIED HVAC PROCESS FLOW DIAGRAMS AND P&ID'S PAGE o Control Room HVAC System Simplified Diagram 2 e HPCS Diesel Generator Room, Switchgear Room and 3 Pump Room Ventilation System e Diesel Generator Room Ventilation System 4 e Switchgear Heat Removal System 5 e CSCS Equipment Cooling System 6 e Reactor Building Ventilation System 7 l

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ATTACHMENT E HVAC EQUIPMENT PURCHASED BY COMMONWEALTH EDISON COMPANY AND INSTALLED BY THE ZACK COM,PANY N BER OF NUMBER OF EQUIPMENT DESIGNATION SAFETY-RELATED NON-SAFETY-RELATED Heat-Exchange Coils and- 12 20 Cabinets Atmospheric Clean-up Filter 8 12 Units Vaneaxial Fans 38 62 Centrifugal Fans 18 4 Air Handling Units 0 7 Evaporative Coolers 0 7 Air-Cooled condensing Units 4 3 Water Cooled Condensing 0 6 Units Electric Blast Coils 0 37

~

Isolation Dampers 141 192 Check Dampers 8 80 Page 1 of 1

ATTACWiENT F SAFETY-RELATED HVAC SYSTEM AND EQUIPMENT CHECKLIST Items Identified On Safety Related HVAC Systems SCOPE OF HVAC WORK System Acronym VC VD VE VG VX VY Fabricated by Zack, Installed by Zack Ductwork X X X

• X X Supports X X X -

X X Welding X X X -

X X Refrigerant Piping X -

X - - -

Purchased By Zack, Installed By Zack Fasteners X X X

• X X Sealants X X X

• X X Flexible Connections X X X- X X X Access Doors X X X -

X X Refrigerant Specialties X -

X - - -

Fire Dampers X X X -

X X Gravity Shutters X X - -

X -

Balancing Dampers X X X -

X X Grilles, Registers and Dif fusers X X X -

X X l

j Airflow Measuring Stations X . X X X X l Silencers X -

X -

X -

i Filters -

X - -

X -

Purchased By CECO, Installed By Zack l Heat-Exchange Coils and Cabinets -

X -

X - -

X Atmospheric Clean-Up Filter Units X -

X X - -

Vaneaxial Fans X X X -

X X Centrifugal Fans X X -

_ X X Air-Cooled Condensing Units X -

X- - - -

Isolation Dampers X X X -

X X Check Dampers X - - - - -

• Limited Scope i.e. Less 5 Feet Of Ductwork.

• Page 1 of 1

ATTACMMENT C Pag 31 af 2 NATE7fAL SPECfrfCATION At:D MECHANICAL PIOPERTTES y *FOR CALVA!:ftro SPEET ETEEL A!:D ETIrFEP.ER HA!:CER, A? D $UPPOPT STEEL .

F MECMANICAL PROPERTIES MATERIAL $13E T gygggTI ION P IFIC M ON TITLE g g g STRENGTH STPENGTH PSI PSI Sheet 16 Cauge - ASTM A527 (1) Standard Specification for 30,000 (4) 52,000 (4)

Lighter Steel Sheet. Zinc Coated (Galvanized) Ly the Hot-Dio Process, Lock-Formine Qual;ty 14 Gauge - ASTM A526 (1) Standard Specification for 40,000 (4) 53,000 (4)

Beavier Steel sheet, ine Coated (Galvanized) by the Hot-Dip Process, correrical Cuality ASTM A446 Standard Specification for 33,000 (2) 45,000 (2)

, Grade A Steel Sheet. Zine Coated

, . (Galvanized) by the Hot-Dip Process, Structural (Physical) Quainty

. Grade B 37,000 (2) 52,000 (2)

Grade C 40,000 (2) 55,000 (2)

Grade D $0,000 (2) 65,000 (2)

, Grade E 80,000 (2) 82,000 (2)

, , Grade r 50,000 (2) 70,000 (2)

ASTM A742 Standard Specification for 33,000 (2) 45,000 (2)

Steel sheet, Zinc coated

• (Galvanized) by the Hot-Dip

, Process, Polyncric Pre-Coated For Sewer and Drainace Pire ASTM A444 Standard specification for 33,000 (2) 45,000 (2)

Steel sheet, Zire Coated a (Galvanized) by the Hot-Dip

- Process for Culvsrts and a , Underdrains i ASTM A528 Standard Specification for 34,000 (5) 52,000 (5)

Sheet Steel, -ine coated (Galvanized) by the Hot-Dip Process, Drawing Cuality ASTM A642 Standard Epecification for 34,000 (5) 52,000 (5)

Sheet Steel, Zine Coated

( *

(Galvanized) by the Hot-Dip l Process, Drawaro Cunlity, Special Killec AETH A361 Standard Epecification for 38,000 (6) 52,000 (6)

- Steel sheet, Zine Coated i

- (Calvanized) by the Hot-Dip

, Process for Roe'ine and Sidina ASTM A525 Standard Speelfication for 38,000 (7) ,52,000 (7)

Stesi Sheet, Zine Coated (Galvani:ed) by thu !!ct-Dip Process, G,eneral 9cquirements

- w. ,

9 l

. [' ( ) Refers to noto numbers.

4 I S 1

• i ,

b

Page 2 et 2 1 I

MATERTAL SPECf PfCATTCH APr0 MECffANICAL PROPERTTES (cInt.)

• FOR CALVANIZED SHEET STEEL AND STIFFEMER HANGER, AND SUPPORT STEEL MECHANICAL PAOPERTIES NATERIAL SIZE "T gygegyg ggg SPECIFIC MION TITLE STRENGTE STRENGTH PSI PSI Stiffeners, 3"x3"x1/4" and hangers, ASTP A36 (1) Standard Specification for 36,000 (2) 50,000 (2)

Larger and Sucoorts Structurai Steel 2-\"x2-%"x4" ASTM A575 Standard Specification for and smaller Grade Merchant Cuality Hot-Rolled 37,200 (3) 57,500 (3)

(Formed Angle) M-1020 (1) Carbon Steel Ears Grade M-1008 34,000 (3) 52,000 (3)

Grade M-1010 35,700 (3) 54,500 (3)

Grade M-1015 36,100 (3) 55,000 (3)

ASTM A661 Standard Specification for 22,500 (2) 45,000 (2)

• Grade 45

• herchant Cuality P.et-Rolled CaiEon Stcci nars Oubject to

,hechanical Property .-

Grade 50 25,000 (2) 50,000 (2)

Grade 55 27,500 (2) 55,000 (2)

Grade 60 - -

30,000 (2) 60,000 (2)

, Grade 65 32,500 (2)

. 65,000 (2)

Grade 70 35,000 (2) 70,000 (2)

. Grade 15 37,500 (2) 75 000 (2)

Grade 80 40,000 (2) 80,000 (2)

. () Refers to note numbers.

t

, Notes:

1. Materials specified in J-2590.

2. Properties from appropriate ATT" specification.

t

. 3.

Properties obtained as minimum produced value from Northwestern Stcol and Fire Corpany.

4.

Properties obtained as routine periodic testing for quality control from Inland Steel Co. pany.

[. 5.

Material has a chemical compositter that is similar to AhTM A575, Grade 1008.

6.

Material not chemically controlled, data estimated by Inland Steel Company. ,

. 7. Material has a chemical composition that is sinitar to ASTM $27.

e

..+-.>-ea*=

ATTACH

• TENT C MATE'fAL SPECTFTCATTON AMD MECHANYCAL PTOPENTTES e

F07 FASTENERS t;$CD IN H%C SYSTEMS Fase 1 of 2 FASTENER MATERIAL SPSCIFICATION MATERIAL MINIMUM TENSILE SPEC!r! CATION TITLE STRENGTH, PSI COMMENTS

, Solte ASTM A307 (1) Standard Specification for Carbon Steel Externally Threaded Standard 60.000 (2):

Festeners ASTM A325 Standard Specification for M 120.000 (2)

Strenath Estes for Structural Steel Joints Astm A354 Standard Specification for Quenched and Tempered Alloy Steel Bolts. 125.000 (2)

Studs, and Other Entereally Threaded Fasteners

, * , ASIM A394 Standard Specification for 60.000 (2)

. Calvanised Steel Transmieston Tower Solta ASTM A449 Standard Specification for Ouenched

• 120.000 (2) and Ten ered Steel Bolts and studs ASTM A490 Standard Specification for Quenched 150.000 (2) and Te rered Allow Steel Bolts for Structural Stect Joints ASIM A687 Standard Specification for High Strength Non-headed Steel Bolts 150.000 (2) Ultimate Tensile and Studs AST!! P432 Standard Specification for Roof 60.000 (2) and Rock toits and Accessor E

• Crade 30

• Grade 55 85.000 (2)

Crede 75 100.000 (2)

ANSI B18.2.1 Americin National Standard Square 60.000 (3) Refers to ASUt A307 and Neu Bolts and Screws Inch Series e Nuter ASTP A363 Standard Specification for Carbon 52.000 (2)

= and Alloy Steel ':uts Proof Stress. PSI ASIM A194 Standard Specification for Carbon and Alloy Steet Nuts for Bolts for 120.000 (2) Proof Stress. PS1 Righ-Pressure and H i r h-Tee pe r a t u r e S e rvic e ANSI B18.2.2 American National Standard Square and New wts 52.000 (3) , Refers to AS W A563 Rivetet Astm A152 (1) Standard Specification for vrouRh t- Ciscontinued Iron Rivets and Rivet Rounds AS!*! A31 Standard Specification for Boiler l 45.000 (2)

Rivet Stect and Rivets

{ Crade A -

Crade B 56.000 (2)

, AjTM A502 Standard Specification for Steet 55-72 HRS (2) (b1LB) Hardness Structural ttvets Grade 1 f Crade 3 76-85 BRB (2) Rockwell B I

• Crade 3 76-93 BRB (2)

MIL-R-24243 Military Specification. Ceneral Minimum Tens 11e 3/16" diameter rivets Specification for Rivete. Blind. Load-475 lbs (2)

Non-Structural Retained Mandrel Screvet ASTM A548 Standard Specification for Steet 52.500 (4)

Wire. Carbon Cold-livading Quality, for Tapping or Sheernetal Screws *

• e Crade 1013 Crede 1016 56.200 (4)

Crade 1018 58.250 (4)

+

, Crade 1019 58.500 (4) s .- Crade 1021 60.000 (4)

Crade 1022 61.000 (4)

ASTM A574 Stand.irJ Specification for A11ay

• 170.000 (2)

Steel Socket-Head Cap L rews

\

. - =--- s_..,_ _

. s MATERIAL SPECTFICATION APfD MECMANICAL PROPERTTES FOR FASTENERS USED IN H"\C SYSTr.MS Fase 2 of 2 FASTENER MATERIAZ. SFSCIFICATION MINIMUM TENSILE MATERIAL SPECITICATION TITLE STRENGTH, PSI COMMENTS Wa she r s ? ASTM F436 Standard Specification for Hardened 38-45 HAC (2) (KRC) Bardness. Rockwell C

, Steel Washers 3 ANSI 527.1 American National 5tandard ~tock 45-51 HRC (2) Redesignated as ANSI (ANSI S18.21.1) Washers B18.21.1 1972 ANSI S27.2 American Standard Plain Washer 23-35 BRC (3) Redesignated as ANSI (ANSI 516.22.1) 318.22.1 1965 (R1975) Refer to ASDI A325 Studer ASTM A193 Standard Specafication for Alloy 75.000 (2) Class 1

• = Steel and Stainless Steel Bottina 110.000 (2) Class 2 e

Materials 16e High-Temperatura service ASTM A354 Standard specification for 125.000 (2)

Quenched and Tempered Alloy Steel Bolts. Studs, and Other Exter-nally Threaded Fasteners ASTM A441 5ttsdard Specification for Hieh-70.000 (2) 3/4" diameter and under Strerath Low Alloy Structural Manganese Vanadium g ASDt A44) Standard Specification for 120.000 (2)

Quenched and Te.rered Steel Bolts and Stude ASTM A687 Standard Specification for High-Strength Non-headed Steel Boles 150.000 (2) Ultimate Tensile

, and Studs I

k I

NOTES: i

1. Materials specified in J-2590 *

, 2. Properties from subject material ssecf fication. 3

3. * ]

Properties from referenced ASDt specification. s

4. Properties estimated from AISI Standard Carbon Steel Typical Mechanical Properties' l

. I i

l*

5 * .

s .- I I

l l s i .

l

ATTACHMENT J HVAC MATERIALS AND EQUIPMENT FURNISHED BY THE ZACK COMPANY FOR THE LASALLE COUNTY NUCLEAR GENERATING STATION Material / Equipment Categories e Ductwork, Stiffeners, Hangers e Miscellaneous Steel Products e Fasteners

• Ductwork Accessories e Weld Rod Filler Material e Sealants and Gaskets e Coatings / Paints

• Refrigeration Equipment e Purchased Equipment e General Notes Page 1 of 16

HVAC FfATERIALS AND EQUIP)fENT FURNTSHED BY TIIE ZACK COMPANY FOR Tl!E LASALLE COUNTY NUCLEAR CENERATINC STATION p, , 2 of 16 Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (USR) Or Designation Equipment Documents Available Equipment (See Note 1) Special (S) (Objective Evidence)

DUCTWORK STIFFEN-ERS llAt:GERS o Galvanized Duct- ASnf A526, A527 AST!! A526, A527 SR C Field Test Data work (sheets or coils) o Stainless Steel Type 316 Type 316 NSR C Not Applicable Ductwork o Stiffeners ASTM A575 ASnf A36 SR C Field Test Data (including angle Grade M1020 rings) ASnf A575 Grade 1020 Grade 1015 Crade 1010 o Hangers ASnf A36 ASTM A36 SR C Field Test Data o Duct Cleats None Specified Cleacs Manufact- NSR C "Not Applicable uring

HVAC MATERIALS AND EQUIPMENT FURNISHED BY THE ZACK COMPANY FOR THE LASALLE COUNTY NUCLEAR CENERATING STATION p, , 3 of 16 Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment. Materials / Materials / (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

!!ISCELLANEOUS STEEL PRODUCTS o Tie Rods 1/2"$ Galvanized Republic Elecre- SR C Reliable Supplier Tubing unite E.M.T.

WW-C-563-A o Band Steel None specified AST?t A36 SR C Field Test Data o Bar Stock None specified ASTM A36 SR C Field Test Data o Shims ASTM A36 ASTM A36 SR C Reliable Suppli2r o Cusset Plates ASTM A36 ASTM A36 SR C Field Test Data o Expansion ASTM A36 ASTtt A36 SR C. Field Test Data .

Anchor Plates o IIanger Clip ASTM A526 ASTM A526 SR C Reliable Supplier Strips o Threaded Rod None specified ASTM A307, A193 NSR C Not Applicable o Wfre Cloth None specified RRW-360A NSR C Not Applicable o Channel None specified ASTM A36 SR C Field Test Data o Tube Steel Nore specified ASTit A300, A501 SR C Field Test Data i

(

J HVAC MATERTALS AND EQUIPMENT FlfRNISTIED BY TIIE ZACK COMPANY FOR Tile LASALLE COUNTY NUCLEAR CENERATING STATION p,g, 4 of 16 Safety-Related (SR) or Non. Quality

) Material / Specified Furnished Safety-Related Commercial (C) j Equipment Materials / Materials / (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) 'Special (S) (Objective Evidence) i o Structural Beams ASTM A-36 ASTM A36 SR C Used as Auxi- Field Test Data liary Steel o Beam Attachments None Specified Elcen NSR C Not Applicable o Couplings None Specified Galvanized SR C See Note 15 t

o Piping None Specified Galvanized ' SR C. See Note 15 o Threaded Rod None Specified Galvanized NSR C. Not Applicable' o Weld Flanges None Specified ASTM A105 NSR7 C Not Applicable t

J l

e e

~

_HVAC MATERIALS AND EQUIPMENT FURNIS11ED BY Ti1E ZACK COMPANY FOR THE LASALLE COUNTY NUCLEAR CENERATING STATION 5 of 16 -

Page .

Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment }faterials/ Materials / (NSR) Or Documents Available

. Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

FM.TENE'IS o Bolts ASDI A307 ASDf A307 SR C Field Test Data 4= 4 ANSI B18.2.1 o Nuts None specified ASDI A194, A563 SR C Field Test Data

^ ^ #*~

ferences ASnf ANSI B18.2.2

a. A563 i

o Huck Fasteners None specified MIL-P-24369B SR C Reliable Supplier o Rivets ASTM A152 IFI-110, 114 SR C See Note 7 MIL-R-24243 o Screws ASDI AS48 ANSI B16.6.4 SR C See Note 8 (Sheet Metal or IFI-113 Cap)

- o Plain Washers None specified ASD! F436 SR C See Note 9 ANSI B27.2 o Co'ncrete Expan- Phillips " Red Phillips " Red SR C Reliable Supplier sion Anchors IIcad" et al . IIcad", IIILTI o Structural Bolts ASTM A325 ASnf A325, A354, SR S Visual Inspection A449, A490 l

HVAC MATERIALS AND EQUIPMENT FURNISifED BY TIIE ZACK COMPANY FOR TIIE LASALLE COUNTY NUCLEAR CENERATINC STATION 6 of 16 Safety-Related

. (SR) or Nm- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Designation Equipment Documents Available ~;

y.quipment_ (See Note 1) Special (S) (Objective Evidence) o Captive Screw None specified ASTM A307 NSR C Not applicable Assemblies .-

o Lock Washers None specified ANClY B27.1- SR C See Note 9 o Beveled Washers None specified NSI B27.4 SR C See Note 9 o Lock Nuts None specified IFI-100, 101, SR C See Note 10 107 ~

o Studs None specified ASTM A193, A354 SR C Visual Incpection ','

A449 o Drive Nails None specified CSA NSR C Not' Applicable FF-S-325

1. 3.2.5.2 .

b a N

a

?

I _

t 9

w

IIVAC MATERIALS AND EQUIP!!ENT FlfRNISHED BY Tile ZACK COMPANY FOR Tile LASALLE COUNTY NUCLEAR CENERATING STATION 7 of 16

_ Page Safety-Related (SR) or Non- Quality M.1terial/ Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

DUCTWORK ACCESSORIES o Vanes ASTM A526, A527 ASTM A526, A527 SR C Reliable Supplier o Flexible Con- Ventglas, et al. Ventglas SR C Reliable Supplier nection (<50 IIP, 2500 FPM) o Flexible Con- Goodyear Goodyear SR C Reliable Supplier nection (>50 HP, E-59241-0348 E-59241-0348 2500 FPM) o Factory Insula- Wiremold 57K, Porter NSR C Not Applicable ted Ducts et al.

o Flexible Metal Flexaust Co. Flexaust Co, MSR C: Not Applicable Ducts Bendway, et al. Bendway o Access Doors Air Balance, Eack Air Balance, SR C See Note 12 (Jams, Hinges) et.al. Zack o Insulation Certain-Teed Certain-Teed N$R C Not Applicable Read Read o Twist in Collars None Specified M. Isrucker NSR C Not Applicable (Supplier)

See Note 16 o Wire Mesh None Spacified 14 gauge wire SR C mesh screen

l .

I IIVAC MATERIALS AND EQUTP?!ENT FURNISHFD BY Ti1E ZACK COMPANY FOR Tile LASALLE COUNTY tmCLEAR CENERATING STATION 8 of 16 Page Safety-Relatedl (SR) or Non- Quality Material / Specified Yurnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Designation Equipment Documents Available Equipment (See Note 1) Special (S) (Objective Evidence)

WELD ROD FILLER MATERIAL o Welding Ductwork, Per Welding AWS E60-11 SR S Field Test Data Stiffeners. Procedures AWS E70-IR See Note 11 Supports AWS E70S o Ductwork Brazing Per Welding RCU-SiA SR Field Test Data Procedures S See Note 11 o Copper Pipe and AWS 5.8 AWS 5.8 SR S Reliable Supplier Fittings bag-1 bag-1

_ _ _ _ _ _ _ - _ -w

HVAC MATERIALS AND EQUIPMENT FURNISHED BY TIIE ZACK COMPANY FOR THE LASALLE COUhTY NUCLEAR CENERATING STATION Page. 9 of 16 Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR)

Designation Equipment Or Documents Available Equipment (See Note 1) Special (S) (Objective Evidence)

SEALANTS AND i

GASKETS o Duct Sealant' GE SCS #1200 CE SCS #1200 SR C Reliable Supplier DOW #732 RTV DOW #732-EL11 et al. JM "DUXSEAL" o Duct Sealant . et al. Spector and Co. NSR C Not Applicable (Supplier) et al.

o External Sealant None Specified  ; Hardcast FT-20 SR C Reliable Supplier Standard Tape (DT) o Gaskets Weatherban #1202 Weatherban#1202T SR E C Reliable Supplier

i!VAC MATE'tIALS AND EQllTPMENT FITRNIS11FD BY Tile ZACK COMPANY FOR Ti!E LASALLE COIINTY NUCLEAR CENERATIMC STATTON Page 10 of 16 Safety-Related t

(SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Matcrials/ (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

COATINGS / PAINTS o Calvanized Calvanox Calvanox, NSR C Not Applicable Touch up Type I by Subox ZRC (Cold Calvaniziry, Compound)

Including Thinner o Miscellaneous None Specified Sherwin-Williams NSR C Not Applicable Paints et al.

- =_ _ - _

HVAC MATERIALS AND EQUIP!!ENT FilRNTSHF.D BY T!!E ZACK COMPANY FOR TIIE i LASALLE COUNTY NUCLEAR CENERATINC STATION

{ Page 11 of 16 Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Documents Available Designation . Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

REFRICERATION EQUIPIENT

i. o Piping ASTM B88 ASTM B88 SR C See Note 13 Type K Hard Type K Hard o Specialties Henry, Henry, SR C Reliable Supplier Superior, et al. Superior o Fittings ANSI B16.22 SR C See Note 13 o Expansion Valves ALCO, Sporlan Sporlan SR C Reliable Supplier o Liquid Solenoids ALCO, Sporlan SP orlan SR C Reliable Supplier o Hot Cas Bypass AT,CO Flo-Con SR C Reliable Supplier Valves o insulation Armstrong, Armstrong NSR C Not Applicable et al.

o Refrigerant R22 R22 SR C See Note 14

11VAC MATERIALS AND EQUTPMENT FURNISHED BY TIIE ZACK COMPANY FOR TITE _

LASALLE COUNTY NUCLEAR CENERATING STATION Page Safety-Related (SR) or Non. Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence)

PURCHASED EQUIPMENT o Fire Dampers Advanced Air, Advanced Air, 154 SR Reliable Supplier et al. Ruskin C 207 NSR o Gravity Shutters Performance American 23 SR Reliable Supplier Specification Warming C 138 NSR o Balancing Performance American 53 SR Dampers Specification Warming C Reliable Supplier 347 NSR -

o Crilles, Regis- Titus, et al. Titus 252 SR ters, Diffusers 1347 NSR C Reliable Supplier o Airflow Mea- Air Monitor, Air Monitor 50 SR suring Stations et al. 168 NSR C' Reliable Suppli.er o Silencers IAC, et al. IAC 23 SR C Reliable Supplier 52 NSR o Terminal Control Titus, et al. Titus 70 NSR C Units Not Applicable o Dust Collector AAF AAF 1 NSR C Not Applicable o Filters Farr, et al. Farr 11 SR 28 NSR C Reliable Supplier

~

IIVAC MATERIALS AND EQUIPMENT FURNISilED BY Tile ZACK COMPANY FOR Tile LASALLE COUNTY NUCLEAR CENERATING STATION p,,, 13 of 16

' Safety-Related (SR) or Non- Quality Material / Specified Furnished Safety-Related Commercial (C)

Equipment Materials / Materials / (NSR) Or Documents Available Designation Equipment Equipment (See Note 1) Special (S) (Objective Evidence) o !!umidification Armstrong Armstrong 1 NSR C Not Applicable Steam Generator o Humidifiers Armstrong Armstrong 20 MSR C Not Applicable o Miscellaneous Greenheck, et al. Greenheck, et al. 43 NSR Fans C Not Applicable o Electric Ileating Bransh Brani.h 2 NSR C Not Applienble Coils o Packaged Air Trane, et al. Trane 6 NSR C Not Applicable Conditioning Units o Air 11andling Carrier Carrier 1 NSR C Not Applicable Unit .

o Condensing Unit Carrier Corrier 3 NSR C Not Applicable o Water-Cooled Carrier Carrier 1 NSR Condensing Units C Not' Applicable o D-X Cooling Coils Carrier Carrier 2 NSR C Not Applicable l

HVAC MATERIALS AND EQUIPMENT FURNISHED BY THE ZACK COMPANY FOR THE

• LASALLE COUNTY NUCLEAR GENERATING STATION General Notes

1. Under safety classification, listing of an item as SR or NSR represents use in safety-related or non-safety-related HVAC systems. For purchased equipment, numerical representations are quantities of equipment-in

. their respective safety category.

2. Where materials were provided by Zack, even though they were not specified, they represent normal commercial practice of providing all necessary hardware required for successful execution of the project. For those miscellaneous materials, not covered in the specification, Zack Company did submit correspondence covering these materials for review.

3. Reliable Supplier - Manufacturer has been producing this standard item for many years. Operational history of this standard item indicates that its significant characteristics perform satisfactorily.

4. Field Test Data - Actual physical data has been verified by in situ material testing.

5. Visual Inspection - Materials can be readily identified by visual observation of a known physical characteristic.

6. Not Applicable - Items were used in non-safety-related HVAC systems and therefore objective evidence is not required.

7. Rivets in safety-related cystems were used in the attachment of the hanger support clips. The use of rivets for the application was based on test results utilizing commercially availabic rivets (" Pop Rivets"). The strength of the rivet is a function of the rivet diameter. Therefore, it

, is sufficient to perform a visual inspection to determine rivet diameter.

8. Screws in safety-related systems were used in the attachment of grilles, registers and diffusers (GRD) to the HVAC ductwork system. These GRD's are the end points of the HVAC system and are provided to introduce air.

into a space to obtain a desired indoor envircoment. The individual spaces are provided with a number of CRD's. The screws that were used are commercial grade sheet metal screws. No further objective evidence is warranted.

Page 14 of 16 .

HVAC MATERIALS AND EQUIPMENT FURNISHED BY THE ZACK COMPANY FOR THE LASALLE COUNTY NUCLEAR CENERATING STATION General Notes (cont'd)

9. Washers used in safety-related HVAC systems can be categorized as plain, bevel and lock type. Plain washers are used primarily to minimize embedding and to aid in torquing the nut / bolt assembly. Bevel washers are normally provided with concrete expansion anchors and are used to aid in torquing the expansion anchor assembly. Lock washers are used to provide greater bolt tension per unit of applied torque or to provide protection against looseness resulting from vibration. The washers that were used are commercial grade devices with no special requirements dictated by their application. No further objective evidence is warranted.

10. Lock nuts in safety-related systems were used in lieu of a bolt and lock washer connection. These lock nuts are commercial grade devices with no special requirements dictated by their application. No further objective evidence is warranted.

11. Welding rods are used in the attachment of stiffener angles to the ductwork, the assembly of the supporting system or the longitudinal welding of 16 gauge and heavier ductwork. They were controlled by a weld rod quality control procedure. The welding applications were controlled by specific welding quality control procedures. Assurance has been maintained that the proper velding rod was used for the appropriate fabrication assembly. No further objective evidence is .

warranted.

12. Access doors have been provided in safety-related ductwork to aid in maintenance and in'spection of duct mounted accessories such as dampers and airflow measuring stations. These devices are mounted in the ductwork system and are provided with latching mechanicms to maintain closure. These devices have been procured from reliable suppliers or have been fabricated by Zack. They are constructed of the same materials as the ductwork for which they were installed. The use of these doors poses no safety concern. No further objective evidence is warranted.

13. Refrigerant piping and fittings have been subject to pressure tests in excess of system design pressures during construction testing of system.

No further objective evidence is warranted.

14. Refrigerant used within the safety-related air conditioning systems was confirmed by resulting temperature conditions identified during pre-operational testing of the respective system. The use of other refrigerants would have resulted in temperature extremos outside of the actual tested values. No further objective evidence is warranted.

Page 15 of 16

HVAC MATERIALS AND EQUIPMENT TURNISHED BY THE ZACK COMPANY FOR THE LASALLE C0tniTY NUCLEAR GENERATING STATION' General Notes (Cont'd)

15. Galvanized pipe and couplings were installed with' drain plugs on the safety-related exhaust duct header around the refueling pool. This type of appurtenance does not serve any structural function. No further objective evidence is warranted.

16. Wire mesh was used~for protecting intake openings from birds or preventing foreign objects from entering the system. This type of minor appurtenance does not serve any structural function. No further objective evidence is warranted.

Page 16 of 16 4

ATTACHMENT K TIME / TEMPERATURE PROFILES FOR SAFETY-RELATED HVAC SYSTEMS ASSUMING LOSS OF HVAC PAGE e Transients After HVAC Failures in the 2 Control Room and Auxiliary Electric

, Equipment Room e Transient Air Temperature in Diesel 3 Generator and Switchgear Rooms e Transient Air Temperature in ECCS 4 Equipment Rooms 4

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Mr. A. Schwencer August 12, 1982 ENCLOSURE 9 Submittal from Commonwealth Edison l

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l C:mmonw rith Edis n One First N:,tional Plata. CNcago. tilinois

@ Chicago, Illinois 60690 Address Reply to: Post Othee Box 767 August 4, 1982 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

SUBJECT:

LaSalle County Station Units 1 and 2 Resolution of HVAC Concerns NRC Docket Nos. 50-373/374

Dear Mr. Denton:

Commonwealth Edison has taken steps to resolve the quality assurance documentation deficiences of the heating, ventilating and air conditioning (HVAC) system installed by the Zack Company at our LaSalle County Nuclear Power Plant throughout the course of the project. Nonconformance reports (NCR'S) issued by Zack have been reviewed and dispositioned by our engineering department and the architect-engineer, Sargent and Lundy.

Also extensive field inspections have been conducted by an independent testing agency, Conam. Additionally, materials have been tested in the field and verified they met applicable material specifications. Based on these investigations, Commonwealth Edison is confident that the HVAC system as installed can perform its design safety function.

However, to add another level of assurance, Edison will have an independent review of the safety-related portion of the HVAC system perfonned by consultants with expertise in HVAC system design, installation and operation. The following general scope has been developed for the review:

l 1. Verify that the HVAC installation is in accordance with the design. This will include, but not be limited to a review of the materials installed, the field and shop welding on supports and ductwork, the operability of associated mechanical equipment, and significant design changes. The reviewer will be directed to independently verify the reliability and adequacy of existing material, structural and field testing already performed; and determine any additional testing or changes

! necessary to reach the conclusion that the HVAC system fulfills its safety function.

i 2. Notify Comonwealth Edison immediately if a safety concern is discovered.

A more detailed scope will be developed after discussions with the consultants and a report of their review will be submitted to the NRC by September 15, 1982. The consultants review will not be constrained by l operational considerations.

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2 Page Two August 4, 1982 -

In the event this verification program identifies any si deficiencies which would prevent the effected portion (s)gnificant of the HVAC system from fulfilling its safety-function, remedial action will be taken inmediately in satisfaction of applicable technical specification lequirements to restore adequate margin and assure the system is operable.

Operation beyond 50% power will not proceed until this assessment and any required remedial action has been completed.

To the extent deficiencies of lesser significance are identified, they will be documented and reviewed with the NRC Staff and remedial action, if necessary, completed on a schedule agreed upon with the NRC Staff.

If there are any questions in this matter, please contact this office.

Very truly yours, .

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Cordell Reed o Vice President cc: Mr. James G. Keppler 1

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