ML17264A205

Rev 17 to Procedure PT-47.3, Control Room Air Handling Unit - Filtration Sys Efficiency Test.

ML17264A205
Person / Time
Site:	Ginna
Issue date:	06/15/1995
From:	Joss G ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17264A201	List: ML17264A200 ML17264A202 ML17264A203 ML17264A204 ML17264A205 ML17264A206 ML17264A207 ML17264A208
References
PT-47.3, NUDOCS 9510260344
Download: ML17264A205 (19)

Text

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V ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER PROCEDURE NO. PT-47.3 REV. NO. 17 CONTROL ROOM AIR HANDLING UNIT FILTRATION SYSTEM EFFICIENCY TEST RESPONSIB AGE EFFECTIVE DATE 8INNA STATION CATEGORY 1.0 START:

REVIEWED BY: DATE TIME THIS PROCEDURE CONTAINS 1S PAGES COMPLETED:

DATE

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TIME'5i02b0344 P...

PDR ADOCK 9510i8 05000244 PDR a L I

PT-47. 3: 1 PT-47.3 CONTROL ROOM AIR HANDLING UNIT FIr,nmTION SVSTEM EFFICIENCY TEST

1.0 PURPOSE

To provide test steps for surveillance aerosol leak testing of the installed "HEPA" filter bank to ensure that there are no leaks greater than that allowed by system acceptance criteria.

1.2 To provide test steps for surveillance halide leak testing of the installed "CHARCOAL" adsorber bank to ensure that there are no leaks greater than that allowed by system acceptance criteria.

1.3 To provide steps for removal of charcoal adsorber test cells and complete charcoal filter bank replace-ment.

2.0 TEST RE UIREMUITS:

2.1 This test shall be performed every 18 months or after 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber system operation since previous test, or following painting, fire, or chemical release, in the area communicating with the air handling unit and shall have the following conditions demonstrated.

2.1.1 In-place thermally generated "DOP" testing of the "HEPA" filters shall show > 99 'emoval efficiency.

2.1.2 In-place "HALIDE" (Freon) leak testing, under normal operating conditions, shall show > 99% removal efficiency.

2.1.3 A "charcoal" sample shall be removed from those cells with the longest in bank residence time or "test canister(s)" shall be removed, and sent to a laboratory for an "Iodine Removal Efficiency Test". The efficien-cy shall be at least 90% removal for iodine.

2.1.4 Pressure drop across the combined "HEPA" filter and "CHARCOAL" adsorber bank shall be < 6" H20 at design flow rate, (+ 10%) .

PT-47. 3: 2 2 2, Test shall be performed after each complete or partial replacement of the "HEPA" filter bank or after any structural maintenance performed on the "HEPA" mounting frames or housing.

2.3 After each replacement of a "CHARCOAL" adsorber cell or after any structural maintenance performed on the adsorber mounting frames or housing, the efficiency specified in step 2.1.2 shall be demonstrated.

2.4 Visual inspection of "charcoal" adsorber cell assem-blies for damage and loss of charcoal shall be performed.

2.5 Visual inspection of "HEPA" filter assemblies for damage and freedom of dust accumulation shall be performed.

3.0 REFERENCES

3.1 Plant Tech. Specs. - Sections 3.3.5 and 4.5.2.3 and 3.5.6.

3.2 ANSI/ASME N510-1975 (Testing of Nuclear Air Cleaning Systems).

NUCON - Vendor.

..4 RGSE Ventilation System Flow Diagram 533013-1867.

3.5 Previously procedure PT-28 (1987).

3.6 Independent Verification Procedure A-1408.

4.0 INITIAL CONDITIONS:

NOTE If preparatory work will be performed prior to vendor arrival, mark step 4.1 N/A.

4.1, Vendor documentation required by the applicable purchase order has been submitted to QC Dept. and found acceptable prior to start of work.

QC 4.2 If plant is operating at ) 350'F RCS temperature, ensure an A-52.4 has been initiated prior to start of test, otherwise mark this step N/A.

RGEE test personnel are qualified in accordance with A-1102.

PT-47.3:3 4.4 When mass air flow thru "HEPA" and "CHARCOAL" bank has been determined, log on applicable vendors "IN TEST" Data Sheet(s).

4.5 Notify Shift Supervisor and Head Control Operator at start of test.

4.6 This procedure is divided into the following sections.

Initial which section(s) apply and mark remainder N/A.

NOTE: Sections 6.2, 6.5 and 6.6 are test require-ments. These sections can be marked N/A only been met if within the their applicable requirement has last 18 months.

4.6.1 Removal of adsorber cell (s) or test canister (s) for iodine removal efficiency testing (Section 6.2).

4' ' Filter bank removal and replacement (Section 6.3) 4.6.3 HEPA Filter Bank Testing DOP (Section 6.5).

4.6.4 Charcoal Adsorber Bank Testing - Halide (Section 6.6).

4.7 Prepare Test Tags for the following:

POSITION PRIOR POSITION RE UIRED TO TEST: FOR TEST:

Fire Mode Selector Switch HS88 (Fire Bench Panel)

"As Required" Control Room Air Handling Unit/Control Room Return Air Fan Switch (FBP)

"As Required" Control Room Charcoal Filter Fan Switch (FBP)

"As Required" Fresh Air Intake Controller (S-81) Located in Control Room Kitchen As Requ iredn Fresh Air 1ntake Controller (S-88) Located in Control Room Kitchen "As Required"

PT-47.3:4 4.8, The individual performing the independent verification shall be a person knowledgeable in the appropriate system involved, normally an Auxiliary Operator or Licensed Operator.

4.9 Initiate Trouble Card, per A-1603, are noted.

if any discrepancies NOTE If preparatory work will be performed prior to vendor arrival, mark step 4. 10 N/A.

CAUTION: Applicable fire systems must be disconnected prior to DOP or Halide testing.

4. 10 Notify Fire and Safety Coordinator, prior to system testing. Ensure the following fire systems are disconnected in accordance with SC-3.16.2.4.

S06 - Air Handling Room S07 - Computer Room Halon S08 - Relay Room Halon 4.11 Notify QC Dept. prior to start of test.

4.12 Notify Chemical Control to ensure labels are available to be posted on all chemical containers used for this test.

4.12.1 A Restricted Use Permit has been issued for the listed products:

PRODUCT: ~PERMIT DIOCTYL PHTHALATE DOP 90:173P GERETRON HALIDE R-11 90:188P

5.0 PRECAUTIONS

5.1 Normal company work safety practices will be observed at all times.

5.2 Notify Control Room personnel that DOP and Halide will be used to test the filter units and a strong organic odor may be noticed in the areas affected by this system.

PT-47.3:5

6.0 INSTRUCTIONS

NOTE: This procedure is sectionalized. Sections 6.5 and 6.6 may be performed in any order.

6.1 Ensure the following fans are shut down ("PULL STOP" position) and test tags are hung on fan switches before entering fan unit.

Control Room Air Handling Unit/Control Room Return Air Fan Switch (FBP).

PULL STOP Control Room Charcoal Filter Fan Switch (FBP)

PULL STOP 6.2 REMOVAL OF ADSORBER CELL OR TEST CANISTER FOR IODINE REMOVAL EFFICIENCY TESTING 6.2.1 Remove charcoal adsorber cell with longest in bank residence time (as determined by Attachment 3) OR test canister from filter bank to obtain charcoal sample for laboratory testing..

6.2.2 Replace removed adsorber cells with approved same or cap as 'applicable.

6.2.3 Label newly installed charcoal cell faceplate using approved marker to reflect replacement date.

NOTE: When identifying cell or test canister location below, use coordinate system from Attachment 3. (Example: cell-1, etc. )

6.2.4 Adsorber cell location (N/A if test canisters

. installed) .

6.2.5 Test canister installed) location (N/A if test canister not 6.2.6 Perform PT-38.1

PT-47 ':6 6.3 FILTER BANK REMOVAL AND REPLACEMENT:

6 '.1 Remove applicable filter bank.

6.3."2 Type filter bank removed: (Mark non-applicable type N/A)

HEPA Charcoal 6.3.3 Number of filter cells removed:

(HEPA)

(Charcoal) 6.3.4 Replace filter cells removed with approved type and ensure the bank is restored to operating condition.

6.3.5 Label newly installed charcoal filter faceplates using approved marker to reflect replacement dates and ensure the bank is restored to operating condition.

6.3.6 For charcoal filter bank only, document replaced cell locations by writing "ALL" below.

adsorbers were replaced mark this step N/A.

If no charcoal Cell Locations:

6 '.7 Perform PT-38.1.

P 6:3,. 8 Test system utilizing appropriate test section to ensure system efficiency within allowable limits.

6.4 SYSTEM STARTUP TEST ALIGNMENT 6.4.1 Start the Control Room air handling unit.

6.4.2 Return the Control Room charcoal filter fan switch (EBP) to the "AUTO AFTER STOP" position.

6.4.3 Depress Control Room HVAC "Manual Recirculation" pushbutton.

6.4.4 Log "Start" time of charcoal filter fan on Control Room HVAC "filter In-Service" otherwise mark N/A.

Log Sheet if need be, 6.4.5 Place or verify fresh air intake controller "S-88" to minimum.

PT-47.3:7 Place or verify fresh air intake controller "S-81" to minimum.

Verify that the following dampers are aligned in the position listed below and charcoal filter fan is running.

REQUIRED DAMPER LOCATION POSITION VERIFICATION AKD10 Outside Air Closed AKD01 Outside Air Closed AKD09 Filter Unit Recirc Open AKD07 Filter Fan Discharge Open AKDOS Exhaust Relief Closed AKD04 Exhaust Relief Closed AKD02 Toilet Exhaust Closed (GREEN LIGHT INDICATION ON'R HVAC PANEL)

AKD08 Filter Outside Air Closed Verify Charcoal Filter Fan running.

(RED LIGHT INDICATION ON CR HVAC PANEL)

NOTE: If Step 4.1 was performed, mark step 6.4.9 N/A.

Vendor documentation required by the applicable purchase order has been submitted to Q.C. Dept. and found acceptable prior to start of "vendor" work.

Q.C.

NOTE: If Step 6.4.10 N/A.

4.10 was performed, mark step Notify Fire and Safety Coordinator, prior to system testing. Ensure the following fire systems are disconnected in accordance with SC-3.16.2.4.

S06 Air Handling Room S07 - Computer Room Halon S08 - Relay Room Halon

0, PT-47.3:8 HEPA FILTER BANK TESTING DOP:

Connect DOP Aerosol Detector to power line outlet.

Connect sample lines from detector to upstream and downstream sample ports.

Record pressure drop across the Hepa filter bank

~onl E Hepa ~P "H20 PDI-Record combined pressure drop across the Hepa Charcoal filters: (PDI- + PDI- )

(Max. Allowable ( 6" H20)

Combined Hepa & Charcoal ~P "H 0 NOTE: If pressure drop is beyond allowable limit, investigate and correct problem prior to testing.

Take background aerosol measurement with detector, and if the downstream concentrations cannot be zeroed out, purge the system until an acceptable background level is reached.

Connect appropriate DOP Aerosol Generator (thermally operated) to injection port, start injection, and adjust generator as necessary.

Connect DOP Detector to upstream sample line, allow reading to stabilize, record reading on vendor's "DOP TEST" 'data sheet, and disconnect sample line.

Connect DOP Detector to downstream sample line, allow reading to stabilize, record reading, and disconnect sample line.

Repeat step 6.5.7 to ensure that upstream concentration has remained the same, (+ 5.).

Calculate percent efficiency and transfer data to appropriate vendor's data sheet.

Efficiency:

PT-47. 3: 9 6.5.,10 If efficiency obtained in Step 6.5.9 does not meet

.percent efficiency acceptance requirements, perform the following: (Otherwise mark this step inclusive N/A) 6.5.10.1 Evaluate inspection/sample arrangement and re-orient as necessary.

6.5.10.2 Retest by re-performing steps 6.5 ' through 6.5.9.

Retest Efficiency:

6.5.10.3 If retest efficiency does not meet percent efficiency acceptance requirements, submit WR/TR. Otherwise mark N/A.

6.5.11 If all testing of air handling unit is complete, remove DOP equipment hoses from sample points, otherwise mark this step N/A.

6.5.12 If testing of air handling unit is complete, replace all pipe caps and fittings on unit, otherwise mark this step N/A.

6.6 CHARCOAL ADSORBER BANK TESTING HALIDE:

6.6.1 Connect Halide Detector to power supply and allow approximately 15 minutes warm up time.

6.6.2 Connect sample lines to upstream and downstream sample ports.

6.6.3 Establish air flow through system.

6.6.4 Record pressure

~onl drop across the Charcoal filter bank Charcoal ~P "H 0 PDI 6.6.4.1 Record combined pressure drop across the Hepa E Charcoal filters: (PDI- + PDI- )

(Max. Allowable ( 6"H20)

Combined Hepa 6 Charcoal ~P "H 0 NOTE: If pressure drop is beyond allowable limit, investigate and correct problem prior to testing.

0 PT-47.3:10

6. 6.,5 Establish upstream and downstream sample flows and set upstream dilution air ratios if necessary, to produce an upstream concentration which is within the linear response range of the detector.

6.6.6 Take upstream and downstream background sample readings.

NOTE: I f these readings show no background contaminants that might interfere with test results, continue with the test.

interference is indicated, purge system If with air flow until interference is reduced to an acceptable level.

6.6.7 Start injection.

6..6.8 Monitor and record upstream and downstream tracer gas concentrations for five minutes per Vendor's data sheet.

NOTE: Halide concentrations are determined by averaging (4) stabilized readings previously recorded.

6 '.9 Calculate percent efficiency and transfer data to appropriate vendor's data sheet.

Efficiency 6.6.10 If efficiency obtained in step 6.6.9 does not meet percent efficiency acceptance ,requirements, perform the following: (Otherwise mark this step inclusive N/A) 6.6.10.1 Evaluate inspection/sample arrangement and re-orient as necessary.

6.6.10.2 Retest by re-performing steps 6.6.5 through 6.6.9.

Retest Efficiency:

6.6.10.3 If retest efficiency does not meet percent efficiency acceptance requirements, submit WR/TR. Otherwise mark N/A 6.6.11 If testing of air handling unit is complete, remove all sample lines from ports, otherwise mark this step N/A.

PT-47.3:11 6.6.,12 If testing of air handling unit is complete, replace all pipe caps or fittings on unit, otherwise mark this step N/A.

6.7 RESTORATION 6.7.1 Request Operations place Control Room HVAC to desired mode, as per Attachment 1.

6.7.2 Log required damper positions and fan status on Attachment 2.

6.7.3 Perform independent verification of Control Room HVAC lineup per Attachment 2.

6.7..4 Log "STOP" time of charcoal filter fan on Control Room HVAC, not in "Filter In-Service" log Mode I) sheet. (Mark N/A if 6.7.5 Ensure Fire and Safety Coordinator has been notified that fire systems S-06, S-07, S-08 can be restored to normal operating status.

6.7.6 Ensure all test tags hung in previous sections have been removed and test tag log reflects so.

6.7.7 Notify. Head Control Operator that system testing is completed and system may be restored to normal operating conditions.

PT-47.3:12 COMMENTS:

COMPLETED BY (RGEcE):

DATE COMPLETED:

HEAD CONTROL OPERATOR:

SHIFT SUPERVISOR:

RESULTS & TEST REVIEW: DATE (INITIATE PERMANENT PCN OF ATTACHMENT 3 TO REFLECT INSTALLATION DATES OF REPLACED CELLS. MARK N/A IF NONE WERE REPLACED)

PCN 0

e.

ATTACHMENT1 DAMPERS MODE AKD01 AKD04 AKDOS AKD07 AKD09 AKD10 AKD05 AKD02 EMER FILTER FAN I (PISTON IN) (PISTON IN)

NORMAL CLOSED CLOSED C OPEN OPEN OPEN OR OR 2000 2000 150 OFF PARTIALLY PARTIALLY CFM CFM CFM OPEN OPEN II (R-1) VAR OPEN VAR POST ACC C 0-2000 0-2000 2000 2000-0 STAYS STAYS STAYS W/ OA CFM CFM CFM CFM CFM OPEN OPEN OPEN III (R-1)

POST ACC OPEN OPEN STAYS STAYS STAYS W/0 OA 2000 2000 OPEN OPEN OPEN IV VAR VAR OPEN VAR STAYS FIRE 0-2000 0-2000 2000 2000 STAYS STAYS OPEN W/ OA CFM CFM CFM CFM OPEN OPEN 150 CFM V OPEN OPEN STAYS FIRE 2000 2000 STAYS STAYS OPEN ON W/0 OA CFM CFM OPEN OPEN 150 CFM Vl TOXIC GAS, OPEN OPEN ON HIGH RAD NOTE: Damper positions for damper AKD01 and AKD04 may vary due to their response to a unit temperature setting of 50~F.

PT-47.3:14 Attachment 2 Control Room HVAC Lineu Check NOTE:

• Log required damper position and fan status using Attachment 1 for guidance.

1.0 Log required HVAC mode per step 6.7.2.

Mode I 2.0 Lineup verification Required Independent

~Dam ex Position Verification 2.0.1 AKD10 2.0.2 AKD01 2.0.3 AKD09 2.0.4 AKD07 2.0.5 AKD05 2.0.6 AKD04 2.0.7 AKD02 2.0.8 AKDOS 2.0.9 Charcoal Filter Fan (Emer RTM Fan)

PT-47.3:15 CONTROL ROOM AIR HANDLING UNIT CHARCOAL (ATTACHMENT 3)

'

S CIFICA ONS: REPLACEMENT DATES 6 CHARCOAL FILTERS 12 APR 95

- TYPE 2 28 1/8'i*22 5/16<<*6 1/4 12 APR 95 LOCATION% 12 APR 95

- AIR HANDLING RM. 12 APR 95 12 APR 95 12 APR 95 EAST WEST

( ) = SAMPLE .CANNISTER INSTALLED NOTE CHART REPRESENTS VIEW OF UNIT FILTER BANK (0) = CAPPED SAMPLE PORT LOOKING IN THE ACCESS DOOR FACING SOUTH.