ML20236N777

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Rev 3 to Quality Insp QI-023, Reinsp of HVAC Equipment Installation
ML20236N777
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 02/06/1987
From: Bowler K, Schanf J, Zill R
EVALUATION RESEARCH CORP.
To:
Shared Package
ML20236N530 List: ... further results
References
QI-023-01, QI-23-1, NUDOCS 8708120103
Download: ML20236N777 (18)
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() EVALUATION RESEARCH CORPORATION UNCONTROLLED COPY.

COMANCHE PEAK RESPONSE TEAM QUALITY INSPECTION FOR ISSUE-SPECIFIC ACTION PLAN VII.c INSTRUCTION No.: QI-023 REVISION NO.: 3 EFFECTIVE DATE: 02-06-87 i

f-- REINSPECTION OF HVAC EQUIPMENT INSTALLATION i

Prepared by: . O rvuA & A Date: 1- 3 ' M c-t 1

Approved by:

I 2e Coordinator Date: 8-Y-77 l

Approved by:

On-Bit e' QA resentative Date: 97 I

Approved by:

C Review Teath Leader Date: 2

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('![7 8708120103 970731 l PDR ADDCK 05000445 -

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i QI-023 Rsv. 3 1.0 PURPOSE This procedure provides direction and accept / reject criteria for each attribute listed on the reinspection checklists which will be used for reinspection of HVAC equipment.

2.0 APPLICABILITY This procedure applies to reinspection of samples selected from the I HVAC Equipment Installation population in Unit 1, common, and Unit.

2. The population is defined in the population description for HVAC Equipment Installation.

3.0 REFERENCES

3.1 Description Memorandum for Reinspection of HVAC Equipment Installation, QA/QC-RT-369, dated August 27, 1985, John Schauf to A. A. Patterson.

3.2 CPP-009, " Performance of Reinspection Documentation Reviews."

3.3 Bat.ison Service Dwg. 2323-H1-0768, Rev. ABi , ,

4.0 CENERAL 4.1 Responsib'.11ty Reinspection are performed and documented in accordance with established CPRT procedures and instructions. This instruction established the attributes and accept / reject criteria for reinspection of HVAC equipment. Reference 3.2 provides the instructions for performing, documenting, and processing the results of the reinspection.

Verification of the attributes listed below will be documented on the CPRT checklist for HVAC Equipment Installation, Attachment 6.1.

1 Measurements shall be made with standard inspection tools as indicated in the " Inspection Tool and Codes" list, Attachment 6.5. Where measurements are indicated in the inspection attribute, tool information shall be recorded in the

" Inspection Tools Used" sheet, Attachment 6.6.

k 4.2 Policy /

i Activities performed under this procedures shall conform to ,

the policies contained in the latest Comanche Peak Response  !

Team Program Plan and Issue Specific Action Plan (s). )

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QI-023 Rev. 3 5.0 PROCEDURE o

'\/2 ~ Note that the alphanumerics before the attribute refer to tr.e checklist item number. 1

1. Identification Verify that the equipment tag number on nameplate matches number shown on the applicable Gibbs and Hill drawing.
2. Location Verify that the equipment is located as shown on the applicable Gibbs and Hill drawing. Verify equipment is within 14 inches of the locations indicated on the Gibbs and Hill duct layout drawings or as indicated by the engineer.

Note: Should measurement be greater than i 3 inches when measured from walls, floors or ceilings, the dimension shall be remeasured using bench marks as the reference location.

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3. Orientation t

Verify that the equipment air flow direction as installed is rs in accordance with the direction shown on the Gibbs and Hill drawing, or as indicated by the engineer. Air flow direction

( can be determined per the following:

a. Orientation for dampers and fans is indicated by the flow direction arrow shown on the applicable vendor drawing as compared to the installation and the Gibbs and Hill drawing.
b. Air flow monitoring stations are constructed in two housing sections with the instrument connections l j

penetrating the housing at the downstream side. l I

4. Duct Connections i
a. Bolt Tension Verify that proper bolt tension exists around companion flange. Proper bolt tension is achieved when the lockwasher split is compressed flat and the lockwasher is fully bearing on the metal surface. Record any missing nuts, bolts or lockwashers. Verify that the nuts and bolts cannot be turned by hand.

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QI-023 Rev. 3 5.0 PROCEDURE (Cont'd.)

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g 4. Duct Connections (Cont'd)

b. Gasket
1. Continuity Verify that a gasket or silicone sealant is visible between flanges around the entire perimeter.
2. Gaps Verify that no visible gaps penetrate into (

the ductwork.

Record any visible gaps which penetrate into the ductwork.

c. Thread Engagement Verify, visually, that the end of the bolt is flush with or projects beyond the face of the nut. p
5. Flange Size

() Verify that duct companion flange bolt hole spacing matches the equipment as indicated on the vendor /TUGC0 drawing. In no case shall the bolt holes be installed less than 3/4" from the edge of the duet flange to the centerline of the bolt.

Potential flange bolt hole spacing deficiencies include:

Disposition Extra holes found in duct flange acceptable Extra holes in equipment flange only valid deviation Extra unused bolt holes drilled in both duct and equipment flanges valid deviation Overlapping holes in duct flange valid deviation Mismatched holes between duct and equipment flange (resulting in

" cocked" bolts) valid deviation Extra bolt holes (used) acceptable In cases where the equipment flanges have been field drilled, verify bolt spacing and centerline-to-edge distance to the l following acceptance criteria:  !

Bolts shall be installed 4" 0.C. around perimeter of the equipment flange. Bolts holes which can not be O\ drilled in line on 4 inch centers shall be spaced 4 inches maximum, one inch minimum. Round equipment 4

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G QI-023 Rav. 3 5.0 PROCEDURE (Cont'd.)

(m) 5. Flange Size (Cont'd) flanges sht.11 have bolts equally spaced on a 360' circle 4 inch maximum 0.C., one inch minimum. In no case shall the bolt holes be installed less than 3/4" (

from the edge of the duct flange to the centerline of j the bolt.

6. Fans
a. Fan Wheel Clearance Verify fan wheel clearance by spinning wheel slowly by hand to check if. fan blades clear the fan' housing. If the fan is operational, the Inspector has the option of verifying clearance through audible or visual means, i.e.: observe for unusual vibration, scuffing noises, etc.
b. Flexible Connections
1. Configuration , ,

Verify flexible connections are provided where indicated on the Gibbs and Hill drawing.

V 2. Connections Verify that all nuts, bolts and lockwashers exist and that nuts and bolts cannot be turned by hand. '

Record any missing nuts, bolts or lockwashers. The  ;

equipment flange should form a tight seal with the ~

flexible connection mating flange. Where an adaptor or ductwork is located between the fan and L flexible connection, verify that all flange connections between the fan and flexible connection form a tight seal, i.e.: no visible gaps.

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c. (Sub-Attribute Deleted)
d. Axial Fans I Verify that there are no indication of twisting or  !

deforming of the fan housing and/or connecting duct / flex connections.

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QI-023 Rsv. 3 5.0 PROCEDURE (Cont'd.)

7. Fire Dampers / Penetrations Note: Only access doors should be removed for reinspection of fire dampers. Removable duct sections are not to be removed for reinspection purposes as removal would invalidate TUGC0 leak tests and system balancing. When no access door is present, the inspector shall write "N/A-Inaccessible" in the remarks column for the affected attributes.
a. Configuration Verify that the fire damper configuration is as shown on the applicable detail on Bahnson Dwg. No.

2323-MI-0/68. Tolerance for dimensions given on detail is 1/4 inch.

Note: Vertical mounted fire dampers shall have the folded curtain of the damper located on the tcp of the duct and horizontally mounted fire dampers shall have the blade catches located above the. curtain travel path. ,

b. Retaining Angles

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Note: Retaining angles are angles attached to sleeve only. Where " Wall Mounted Restraints" are called out in 2323-MI-0768, these angles should be attached to wall and sleeve.

Retaining angle dimension allowabits are not applicable to wall mounted restraints.

1. Size Where specified on the detail drawing, verify that retaining angles are attached to the sleeve with 5/16" nuts and bolts spaced 8" maximum C-C with at least two connections per side. Verify that the nuts and bolts cannot be turned by hand.
2. Dimensions Verify that retaining angles (where indicated) overlap the wall a minimum of 1" on all four sides and both faces of the wall, and are not attached to the wall or to each other in the corners. Verify that retaining angles are 2" X 2" X 3/16" minimum, 3" X 3" X 3/8", maximum.

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QI-023

.Rav. 3 4

5.0 PROCEDURE (Cont'd.)

7. Fire Dampers / Penetrations (Cont'd)
c. Fire Damper / Sleeve Attachment Verify damper is attached to sleeve with either 1" nuts and bolts or 1" welds spaced at 8" maximum C-C with all four sides and both faces staggered intermittently.

Where bolts are used, the bolt 'eads n should be on the outside of the oleeve. Verify that the nuts and bolts cannot be turned by hand.

Note: Pop rivets are an acceptable substitute where indicated on drawing 2323-MI-0768.

8. Modulating and Isolation Dampers
a. Configuration
1. Flange Bolt Spacing Verify that duct companion flange bolt spacing matchestheequipmentasshownonthevendor/TUGCg drawing. Verify that additional bolt holes have been provided in each corner of the damper flange to match the holes in the duct flange. (Rectangular

( dampers only)

2. Actuator Mounting Bracket Verify that the actuator mounting bracket bolts extend through the bracket, damper flange and ductwork flange. Verify that the nuts and bolts cannot be turned by hand.
b. Actuator If the actuator is to spring to a " Fail close" position, verify that the spring side of the actuator is on the left side when facing the nameplate. For " Fail'open", the spring should be on the right side while facing the nameplate.

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QI-023-

' Rav. 3 5.0 PROCEDURE (Cont'd.)

eT Q 9. Gravity Dampers

a. Free Movement Move arm through its full range of motion. Arm should move freely.
b. Counterweight Verify that weight is balanced properly by moving lever to its full open position and releasing. Damper should move smoothly and slowly to closed position during static conditions. Verify counterweight is locked in position.
10. Air Flow Monitoring Stations
a. Instrumentation Connection l

Verify that the instrumentation connection locknut cannot be turned by hand.

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11. (Attribute Deleted) 1

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6.0 ATTACHMENTS 6.1 Comanche Peak Response Team Reinspection Checklist HVAC Equipment Installation.

6.2 (deleted) 6.3 (deleted) 6.4 (deleted) 6.5 Inapection Tool and Codes.

6.6 Inspection Tools Used.

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, Attachmsnt 6.1 COMANCHE PEAK RESPONSE TEAM QI-023, Rev. 3 CHECKLIST Page 1 of 3 A POPULATION DESC VERIFICATION PKG NO.

h HVAC EQUIPMENT INSTALLATION I-M-HVIN- PAGE 1 0F 3 QUALITY INSTRUCTION QI-023 O REINSPECTION '

l O UNIT 1 l EQUIPMENT MARK / TAG NO. O DOCuMENTATI0w REVIEW O uNtT 2 l

O C0xMON VERIFICATION i AW ME ACCEPT REJECT DATE REMARKS l

l 1. Identification

2. Location
3. Orientation '
4. Duct Connections t
a. Bolt Tension

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b. Gasket
1. Continuity
2. Gaps
c. Thread Engagement
5. Flange Size PREPARED BY: APPROVED BY:

DISCIPLINE ENGR. DATE LEAD DISCIPLINE ENGR. DATE INSPECTED BY: APPROVED BY:

INSPECTOR i DATE LEAD INSPECTOR DATE

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CPP-007.1A, Revision 0

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i COMANCHE PEAK RESPONSE TEAM Attachment 6.1 CHECKLIST QI-023. Rev. 3 Page 2 cf 3 POPb"LATION DESC VERIFICATION PKG NO.

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gj HVAC EQUIPMENT INSTALLAT"0N I-M-HVIN- PAGE

--2 OF

---3 VERIFICATION ACCEPT REJECT DATE RNS f

6. Fans
a. Fan Wheel Clearance
b. Flexible Connections
1. Configuration
2. Connections
c. (Sub-Attribute p Deleted) m

(') d. Axial Fans i

7. Fire Dampers and Penetrations
a. Configuration  !
b. Retaining Angles l
1. Size l
2. Dimensions 1
c. Fire Damper /

Sleeve Attachment 1

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C?P-007.lB, Revision 0 l

q COMANCHE PEAK RESPONSE TEAM Attachmsnt 6.1 CHECKLIST QI-023. Rev. 3 Page 2 of 3 POPilLATION DESC VERIFICATION PKG NO.

A

( FAGE OF HVAC EQUIPMENT INSTALLAT10N I-M-HVIN- --3 3 VERIFICATION l ACCEPT REJECT DATE b

8. Modulating and Isolation Dampers
a. Configuration i
1. Flange Bolt Spacing
2. Actuator Mounting Bracket '
b. Actuator
9. Gravity Dampers '

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a. Free Movement

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b. Counterweight
10. Air Flow Monitoring Stations
a. Instrumentation Connection l

,a C??-007.IB, Re"ision 0

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- Attachment 6.2 QI-023 Rev. 3 Page 1 of 2 l

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Attachment 6.2

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i Attachment 6.3

- QI-023 Rev. 3 Page 1 of 1 ATTACHMENT DFIETED t

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' Attachment 6.4

~ QI-023 Rev. 3 Page 1 of 1

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ATTACHMENT DELETED O

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Attachmant 6.5 e

QI-023 Rev. 3 Page 1 of 1

.t INSPECTION TOOL AND CODES CODE TOOL l '

AF- ANGLE FINDER BL BUBBLE LEVEL BS BOROSCOPE BW 1/32", 1/16", 3/32", 1/8" WIRE CG- CONTOUR GAGE DF DRY FILM THICKNESS CAGE FG FEELER GAGES FL FLASHLIGHT FM FIBRE METAL FILLET GAGES GG GAL FILLET GAGES HL HI-LOW GAGE D

MG MAGNIFYING GLASS' MI MICROMETERS MM MIRROR MN MAGNET PB PLUM BOB PR PROTRACTOR SC SLIDE CALIPER SR 6" RULE ST STEEL TAPE MEASURE TG TAPER GAGE TW TORQUE WRENCH UD UNDERCUT CAGE (DIAL)

UP UNDERCUT GAGE (PIT)

VC VERNIER CALIPER VT INSPECTION l

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s Attachm nt 6.6 QI-023 Rev. 3 Page 1 of 2 ys INSPECTION TOOLS USED

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ATTRIBUTE TOOL CODE SERIAL N0/ CALIBRATION DUE DATE

1. Identification N/A
2. Location
3. Orientation N/A
4. Duct Connections
a. Bolt Tension N/A
b. Gasket
1. Continuity N/A
2. Caps N/A
c. Thread Engagement N/A i
5. Flange Size r~T 6. Fans x_
a. Fan Wheel Clearance N/A
b. Flexible Connections N/A
c. Sub-Attribute Deleted N/A
d. Axial Fans N/A
7. Fire Dampers / Penetrations
a. Configuration
b. Retaining Angles
c. Fire Damper / Sleeve Attachment
8. Modulating and Isolation Dampers
a. Configuration
b. Actuator N/A y3

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J Attachmant -6.6

' QI-023

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Rev. 3 Page 2 of 2 INSPECTION TOOLS USED ATTRIBUTE TOOL CODE SERIAL N0/ CALIBRATION DUE DATE

9. Gravity Dampers '

l a. Free Movement N/A l'

b. Counterweight N/A
10. Air Flow Monitoring Stations
a. Instrumentation Connection N/A l 0 O

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