silo 3 - U.S. Department of Energy

a
e
a
~
DCL-19-5202A
DCL-19-5202B
DCL-19-5202A
PDI-DCL-19-
5202A
PDI-DCL-19-
52028
LSH-DCL-19-
5202A
LSHH-DCL-19-
5202A
LSH-DCL-19-
52028
LSHH-DCL-19-
52028
YI-DCL-19-5202
LSH-HBN-19-
5205A
LSH-HBN-19-
52058
LSH-FLT-19-
5204
PDI-FLT-19-
5204A
Table 4-3 PVS Setpoints
I
Process Control Plan for the Silo 3 Project
Document No. 40430-PL-0003. Rev. 1
Jacobs Proiect Number 35H 19605
September 5, 2003
5069 I
Differential Pressure:
1 in wg Low (24)
7 in wg High (24)
8 in wg High-High Operator Action
Differential Pressure:
1 in wg Low (23)
7 in wg High (23)
8 in wg High-High Operator Action
24 in High Level Operator Action
36 in High-High Level (41 1
24 in High Level Operator Action
36 in High-High Level (41 1
0.005 gr/scf High Particulate
Count
Operator Action
0.01 0 gr/scf High-High Particulate
Count
(27, 28)
24 in High Level Operator Action
24 in High Level Operator Action I
12 in High Level in Operator Action
Condensate Leg13
Differentia I Pressure :
1 in wg Low Operator Action
7 in wg High Operator Action
8 in wg High-High . Operator Action
l1 The PVS fans are shut down when the panic bar on emergency egress door 008B is activated.
This relieves negative pressure in the Excavator Service Room, allowing the door to be opened, thus
complying with Life Safety Code Requirements. The control system and HMI settings limit the
number of fan restarts per hour.
'* All setpoints will be reviewed and modified as necessary during startup.
l3 The inlet duct to FLT-19-5204A&B exits the Process Building to the outdoors and drops
approximately 20 ft to the filters. Since the duct carries high-dewpoint, conditioned air, condensate
is likely to form inside the duct during cold weather. For this reason, a condensate leg (with high-
level alarm and drain valve) is provided just upstream of the filters. This enables the operator to
drain excess condensate out of the PVS before the duct fills with water, causing entrainment of
moisture into the HEPA/ULPA filter elements.
.JL 008114
4-6