Closed loop cooling operation with MICON. Revision 1 Page: 53 of 54
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OPERABILITY CLOSED LOOP COOLING WHC-SD-CP-OTP-152
TEST PROCEDURE OPERATION WITH MICON REV. 1
IMPACT LEVEL Q PAGE 46 OF 47
5.5.6 EXPANSION.TANK TK-101 Pressure Switch PSL-TK-101 alarm
1. Isolate expansion tank TK-101 manifold by closing the following
valves.
a) V-CLC-121 - Verify Closed
b) V-CLC-119 - Verify closed
c) V-CLC-128 - Verify closed
d) V-CLC-133 - Verify closed
e) V-CLC-134 - Verify closed
2. Remove 1/2" pipe cap downstream of valve V-CLV-118.
3. Slowly open valve V-CLC-118 to depressurize manifold.
4. When the pressure in the manifold drops below 50 1 psig Low
Pressure Alarm PAL-TK101 will annunciate on the MICON.
5. Verify alarm on MICON.
6. Close V-CLC-118 and reinstall pipe 1/2" cap.
7. a) Open V-CLC-121 - Verify Open
b) Valve V-CLC-119 - Verify Closed.
c) Open V-CLC-128 - Verify Open
d) Open V-CLC-133 - Verify Open
e) Open V-CLC-134 - Verify Open.
8. Repressurize TK-101 to above 55 psig.
a) Verify PAL-TK101 clears on MICON.
9. Return to normal configuration.
Quality Control Verification Point:
Verified alarm and indication at MICON as required.
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Signature Stamp Date
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Navarro, G.E. Closed loop cooling operation with MICON. Revision 1, report, January 18, 1995; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc695718/m1/53/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.